TECHNICAL FIELD
[0001] The present disclosure relates to the field of wireless point of sale
transactions. In particular, the present disclosure relates to a point of sale terminal for accepting digital payment through multiple digital payment techniques.
BACKGROUND
[0002] With the rise in demand for cashless based transactions, there has been a
swift emergence of a number of digital payment solutions in the market. These digital payment solutions enable the customers to perform online and offline payment through their mobile devices. These digital payment solutions allow payment through credit card, debit card, loyalty points and digital wallets. In addition, there have been various new digital payment technologies introduced in the market. These new digital payment technologies include payment through QR code processing, payment through a unique identification number and the like. Nowadays, the customers are well versed with how to perform an online or an offline transaction using these digital payment solutions in real time. The customers may make the payment to an online merchant through a mobile application or a website. Alternatively, the customers may make an offline payment to a merchant in a retail store through a credit card, debit card, digital wallet and the like. The merchants are equipped with a point of sale machine or a device for performing offline transaction for accepting payments from the customers. The existing point of sale machines has limited applications when it comes to accepting payments through variety of digital payment solutions. The in-store merchants have to use different machines or POS terminals for accepting payment through different digital payment techniques. This increases investment cost for the merchants. The merchants are not equipped with a single point of sale device which can allow the merchants to accept payment through various

digital wallets and digital payment techniques. Further, the existing point of sale machines hasn't been configured with the new age digital payment solutions. Furthermore, the current digital payment solutions are not scalable. The merchants are not ready to accept payments through traditional digital payment systems as well as new age digital payment solutions. Moreover, the existing systems do not provide or allow real time confirmation of payment when the merchant is away from the point of sale machine or terminal.
[0003] In light of the above stated discussion, there is a need for a system and
point of sale terminal which overcomes the above stated disadvantages.
OBJECT OF THE DISCLOSURE
[0004] A primary object of the present disclosure is to provide a point of sale
terminal for payment through multiple digital payment modes.
[0005] Another object of the present disclosure is to reduce cost for in-store
merchants spent on a number of machines for accepting payments through multiple digital payment modes.
[0006] Yet another object of the present disclosure is to enable the merchants to
be ready to accept payments through any known digital payment mode and digital payment modes introduced in future.
[0007] Yet another object of the present disclosure is to provide real time
payment confirmation for payment made through any digital payment mode known in the art.
SUMMARY
[0008] In an aspect, the present disclosure provides a point of sale terminal. The
point of sale terminal conducts a digital payment transaction between a customer and a merchant. In addition, the point of sale terminal enables the digital payment transaction through a plurality of digital payment modes. The point of sale terminal includes a graphical user interface screen. The graphical user interface screen allows the merchant and the customer to interact with the point of sale

terminal in real time. In addition, the graphical user interface screen allows the merchant to select at least one digital payment mode of the plurality of digital payment modes for the customer. Moreover, the point of sale terminal includes a digital payment card swiping mechanism installed on the point of sale terminal. The digital payment card swiping mechanism allows the customer of a plurality of customers to perform the digital payment transaction. Further, the point of sale terminal includes a chip reader mechanism installed on the point of sale terminal. Furthermore, the point of sale terminal includes a biometric scanner for real time biometric verification of the customer. Also, the point of sale terminal includes software installed inside a hardware layer of the point of sale terminal. In addition, the point of sale terminal includes a printing mechanism. The printing mechanism allows auto-printing of one or more payment receipts in real time on completion of the digital payment transaction by the customer through at least one digital payment mode of the plurality of digital payment modes. The digital payment transaction is completed through the selected digital wallet application of the plurality of digital wallet applications installed on a portable communication device associated with the customer. The at least one digital payment mode is selected based on a choice of the customer in real time. The at least one digital payment mode is enabled through a digital wallet application of a plurality of digital wallet applications installed on the portable communication device associated with the customer. The graphical user interface screen is configured to display at least one of a quick response code and a barcode after receiving a payment request in real time. The quick response code contains a first set of information associated with the merchant. The digital payment transaction performed through the digital payment card is based on a choice of the customer. The biometric scanner is configured to accept a biometric input from the customer and prompt the customer to enter a unique identification number associated with the customer on the graphical user interface screen of the point of sale terminal.

The unique identification number is linked to an account associated with at least one financial institution of a plurality of financial institutions. The software is configured to allow each merchant of a plurality of merchants to set up a payment collection and confirmation organization. The payment collection and confirmation organization includes a second set of information associated with at least one user of one or more users. The payment collection and confirmation organization is set up for authorization of the at least one user of the one or more users for reception of payment confirmation information in real time after the completion of the digital payment transaction in real time. The payment confirmation information is received by the at least one user based on a pre-determined criterion. The software is associated with a software application installed in the point of sale terminal. The software is configured to generate at least one of the quick response code and the barcode based on the payment request. The one or more payment receipts are printed for each type of digital payment mode in real time.
+BRIEF DESCRIPTION OF THE FIGURES
[0009] FIG. 1A illustrates an interactive computing environment for real time
digital payment transaction between a merchant and a customer, in accordance with various embodiments of the present disclosure;
[0010] FIG. IB illustrates a block diagram of a point of sale terminal, in
accordance with various embodiments of the present disclosure; and
[0011] FIG. 2 illustrates the block diagram of a computing device, in
accordance with various embodiments of the present disclosure.
DETAILED DESCRIPTION
[0012] FIG. 1 illustrates an interactive computing environment 100 for enabling
digital payment transaction between a merchant and a customer in real time, in accordance with various embodiments of the present disclosure. The digital payment transaction corresponds to transfer of funds from one account to another

in real time. In addition, the digital payment transaction corresponds to use of
digital payment techniques known in the art for transferring funds. Moreover, the
digital payment transaction can be made at any offline store to the merchant. The
digital payment transaction enables the customer to make swift and hassle free
5 payment to the merchant without the need of carrying cash.
[0013] The digital payment transaction involves payment which can be made
directly to the merchant through an account associated with a financial institution. The account belongs to the customer with a particular amount of money which can be used to make the payment offline and online. In addition, the digital
10 payment transaction is made by following a pre-set rules and standards which
must be followed whenever a transaction request is generated. In general, the customer utilizes various digital payment instruments for carrying out the digital payment transaction online and offline. The digital payment instruments include a debit card, a credit card and the like.
15 [0014] Going further, the interactive computing environment 100 includes a
merchant 104, a point of sale terminal 106, one or more users 108, a customer 110 and a portable communication device 112. In addition, the interactive environment 100 includes a communication network 114, one or more digital wallet servers 116, one or more financial institution servers 118 and a main server
20 120. The interactive environment 100 enables the merchant 104 to accept digital
payment from the customer 110 through multiple digital payment modes. In addition, the interactive computing environment 100 enables the merchant 104 to accept digital payment through any of the multiple digital payment modes through a single point of sale device.
25 [0015] Further, the interactive computing environment 100 enables the real time
digital payment transaction between the merchant 104 and the customer 110. The merchant 104 and the customer 110 located in a facility 102 in real time. The facility 102 corresponds to any offline store, retail store, an office, a building, a
6

factory, an airport and the like. In addition, the facility 102 corresponds to any
type of location or venue where a digital payment transaction can be performed.
[0016] In an embodiment, the facility 102 can be any place or location where a
buying action can be performed by the customer 110 in real time. In an
5 embodiment, the facility 102 may be any kiosk set up by the merchant 104 for
selling any product, service and the like. The merchant 104 may be any person or individual who conducts a real time digital payment transaction with the customer 110. The merchant 104 is an authorized dealer for providing various goods and services at fixed or variable prices to the customer 110. In an embodiment, the
10 merchant 104 does not need to be present at the counter. In an example, the
counter may be an auto checkout counter without the need of a man.
[0017] In an embodiment, the merchant 104 is currently present inside the
facility 102. In another embodiment, the merchant 104 is located at some
distance from the facility 102. In yet another embodiment, the merchant 104 is
15 located away from the facility 102 in real time. The merchant 104 is associated
with the point of sale terminal 106. In an embodiment, the merchant 104 is located near the point of sale terminal 106 in real time. In another embodiment, the merchant 104 is located at a considerable distance from the point of sale terminal 104. The point of sale terminal 106 is a device for carrying out the
20 digital payment transaction in real time. In addition, the point of sale terminal
106 can accept people to business (P2B) payments and send business to people (B2P) or business to business (B2B) payments. The point of sale terminal 106 allows the merchant 104 to accept payment through a plurality of digital payment modes in real time. Moreover, the point of sale terminal 106 provides a
25 mechanism for accepting payment without need of additional devices. Further,
the point of sale terminal 106 is a combination of a hardware layer 122 and a software layer 124. The hardware layer 122 includes a plurality of hardware
7

elements. The software layer 124 is associated with the software for allowing the
merchant 104 to perform the digital payment transaction.
[0018] The plurality of hardware elements are embedded inside the point of sale
terminal 106. Each of the plurality of hardware elements function according to
5 one or more instructions provided by the software in real time. Each of the
plurality of hardware elements perform a specific task for carrying out the digital payment transaction in real time. The plurality of hardware elements include a graphical user interface screen 122a, a digital payment card swiping mechanism 122b, a chip reader mechanism 122c, a biometric scanner 122d and a printing
10 mechanism 122e (explained below in the patent application). In an embodiment,
the plurality of hardware elements includes NFC readers, sound wave detectors
and the like.
[0019] Each of the plurality of hardware elements in linked with the software.
The software is embedded inside the point of sale terminal 106. Further, the
15 software runs on a specific type of operating system. The operating system
includes DOS operating system, Windows operating system, Linux operating system, Unix operating system, MAC operating system and the like. Further, the software is associated with a software application 124a installed in the point of sale terminal 106. The merchant 104 may access the software application 124a in
20 real time on the point of sale terminal 106 through the graphical user interface
screen.
[0020] The point of sale terminal 106 is connected to internet in real time
through the communication network 114. In an embodiment, the point of sale
terminal 106 may be connected through a WiFi connection. In another
25 embodiment, the point of sale terminal 106 may be connected through an Ethernet
port. In yet another embodiment, the point of sale terminal 106 may be connected through a bluetooth connection. The merchant 104 signs up or registers on a web based platform associated with the software application 124a for accepting the
8

digital payment from the customer 110. The merchant 104 may provide a set of
information on the web based platform in real time for signing up as a merchant.
The set of information may include name, e-mail address, phone number, address,
a type of business, a location of a retail store, address of the retail store, number
5 of employees and the like. In addition, the merchant 104 may configure the
software application 124a as per business requirements or needs.
[0021] The merchant 104 is associated with a portable communication device.
Examples of the portable communication device include but may not be limited to smartphone, laptop, tablet and personal digital assistant. The portable
10 communication device is connected to the internet in real time. In an
embodiment, the merchant 104 may access a software application associated with the software on the portable communication device. In an embodiment, the merchant 104 may access a browser application on the portable communication device. The merchant 104 may access a website associated with the point of sale
15 terminal 106. The website provides a web based platform to the merchant 104.
The web based platform enables the merchant 104 to set priorities as per the
business needs and requirements.
[0022] The merchant 104 is associated with the one or more users 108. In
addition, the one or more users 108 are associated with the point of sale terminal
20 106. The one or more users 108 are located in the facility 102 in real time. The
one or more users 108 are in a vicinity of the merchant 104 and the point of sale terminal 106 in real time. The one or more users 108 may be any person or individual who have a permission to accept the digital payment on behalf of the merchant 104 in real time. The one or more users 108 may be a relative, a
25 colleague, a friend, an employee or any other person in relation to the merchant
104. The customer 110 is located inside the facility 102 in real time. The customer 110 is any person or individual looking to buy one or more products, one or more services or any other transaction related activity in real time. The
9

customer 110 is associated with the portable communication device 112. The
customer 110 is an owner of the portable communication device 112. Examples
of the portable communication device 112 include a smartphone, a tablet, a
laptop, a personal digital assistant and the like.
5 [0023] The portable communication device 112 is connected to the internet in
real time. The portable communication device 112 includes one or more digital wallet applications 112a installed in the portable communication device 112. The customer 110 may select any one of the one or more digital wallet applications 112a in real time for performing the digital payment transaction. Further, each of
10 the one or more digital wallet applications 112a is linked with a corresponding
server of the one or more digital wallet servers 116. The one or more digital wallet servers 116 are linked with the one or more financial institution servers 118 through the communication network 114. The one or more financial institution servers 118 store account related information of the customer 110.
15 [0024] Going further, the point of sale terminal 106 is linked with the main
server 120. In addition, the main server 120 is linked with the one or more digital servers 116 and the one or more financial institution servers 118 though the communication network 114. The main server 120 handles various operations performed by the point of sale terminal 106. The operations include registration
20 of the merchant 104, payment confirmation information transmission, verification
of payment confirmation for the customer 110 and the like. The merchant 104 sets up a payment collection and confirmation organization on the web based platform. In an embodiment, the merchant 104 may set up the payment collection and confirmation organization directly on the point of sale terminal 106. The
25 point of sale terminal 106 provides a dashboard interface to the merchant 104.
The dashboard interface allows the merchant 104 to specify at least one user of the one or more users 108 authorized to collect payment and confirm the payment on completion.
10

[0025] The merchant 104 sets up the payment collection and confirmation
organization through the software associated with the point of sale terminal 106.
In addition, the software associated with the software application 124a includes a
payment confirmation system 126. The payment confirmation system 126 allows
5 the merchant 104 to set up the payment collection and confirmation organization.
The software is configured to allow each merchant of a plurality of merchants to set up the payment collection and confirmation organization. The payment collection and confirmation organization includes a second set of information associated with at least one user of one or more users 108. In an embodiment of
10 the present disclosure, the second set of information may include personal
information associated with at least one user of the one or more users 108. The at least one user is selected by the merchant 104 to receive the payment confirmation information in real time. The merchant 104 provides the second set of information on the web based platform.
15 [0026] The personal information includes a name of the at least one user, a
phone number associated with the at least one user and an e-mail address associated with the at least one user. In addition, the personal information includes a type of association with the merchant 104 and a gender of the at least one user. The at least one user of the one or more users 108 is selected based on a
20 choice of the merchant 104. The payment collection and confirmation
organization is set up for authorization of the at least one user of the one or more users 108. The authorization is done for reception of payment confirmation information in real time after the completion of the digital payment transaction in real time.
25 [0027] The payment confirmation information is received by the at least one
user based on a pre-determined criterion. In an embodiment of the present disclosure, the pre-determined criterion includes reception of the payment confirmation information after completion of the transaction. The payment
11

confirmation information is received when the merchant 104 is unavailable at a
point of sale location associated with the installed point of sale terminal 106. The
payment confirmation information is received on a portable communication
device associated with the at least one user of the one or more users 108. The
5 payment confirmation information is received by the at least one user for a pre-
defined range of time. The pre-defined range of time is set by the merchant in real time. In an example, the merchant 104 may set a time of 1 pm – 2 pm where any user registered on the platform as a payment collector on behalf of the merchant 104 can accept and confirm receipt of payment.
10 [0028] Further, the customer 110 visits the facility 102 for buying one or more
products, one or more services or any other transaction related activity. In an embodiment, the customer 110 may choose to pay cash. In another embodiment, the customer 110 may choose to pay through any digital payment mode. The point of sale terminal 106 is installed at the checkout counter where the merchant
15 104 is present. The merchant 104 may not be present at the checkout counter and
the at least one user of the one or more users 108 may be present at the checkout counter to accept and confirm the payment on behalf of the merchant 104. The graphical user interface screen 122a allows the merchant 104 and the customer 110 to interact with the point of sale terminal 106 in real time. The graphical user
20 interface screen 122a is a high resolution screen of a pre-defined size and
dimensions. In addition, the point of sale terminal 106 allows the merchant 104 to select at least one digital payment mode of the plurality of digital payment modes for the customer 110. In addition, the graphical user interface screen 122a is configured to display at least one of a quick response code and a barcode after
25 receiving a payment request in real time.
[0029] The at least one digital payment mode may be selected based on a choice
of the customer 110 in real time. In an embodiment, the point of sale terminal 106 may display a list of the plurality of digital payment modes on the graphical
12

user interface screen 122a. The merchant 104 may ask the customer 110 to select
at least one digital payment mode of the plurality of digital payment modes
displayed on the graphical user interface screen 122a. The plurality of digital
payment modes includes payment through credit card, payment through debit
5 card and payment through scanning the quick response code. In addition, the
plurality of digital payment modes includes payment through the biometric verification and entering the unique identification number and payment through loyalty points. Moreover, the plurality of digital payment modes includes payment through Unified Payments Interface (UPI) mode.
10 [0030] The customer 110 accesses a digital wallet application of the one or more
digital wallet applications 112a on the portable communication device 112 in real
time. The digital wallet application is enabled for performing the digital payment
transaction through any of the plurality of digital payment modes.
[0031] In an example, a customer A, a customer B and a customer C enter a
15 clothing store Z. The customer A selects a product L (say t shirt), the customer B
selects a product M (say formal pants) and the customer C selects a product N (say jeans). The customers A, B and C proceed for payment at checkout counter. A merchant Z1 is located at the checkout counter and a point of sale terminal P is installed at the checkout counter. The customer A wants to make payment
20 through a debit card, the customer B wants to make payment through quick
response code scanning and the customer C wants to make payment through fingerprint scanning and unique identification number verification. The merchant Z1 selects option for the customers A, B and C on the point of sale terminal P. The customer A has a portable communication device A1, the customer B has a
25 portable communication device B1 and the customer C has a portable
communication device C1. The customer A accesses a digital wallet application D1 on the portable communication device A1, the customer B accesses a digital wallet application D2 on the portable communication device B1 and the customer
13

C accesses a digital wallet application D3 on the portable communication device
C1.
[0032] Further, the point of sale terminal 106 includes the digital payment card
swiping mechanism 122b. The digital payment card swiping mechanism 122b
5 allows the customer 110 of a plurality of customers to perform the digital
payment transaction by swiping a digital payment card of a plurality of digital payment cards. The merchant 104 may take the digital payment card from the customer 110 and swipe the digital payment card on the digital payment card swiping mechanism 122b. The point of sale terminal 106 reads information
10 associated with the customer 110 through magnetic strip reading as known in the
art. In an embodiment of the present disclosure, the digital payment card swiping
mechanism 122b may be installed at any suitable location on the point of sale
terminal 106.
[0033] Furthermore, the point of sale terminal 106 includes the chip reader
15 mechanism 122c. The chip reader mechanism 122c may be located at any
suitable location on the point of sale terminal 106. The chip reader mechanism 122c includes a slot for inserting the digital payment card associated with the customer 110. The chip reader mechanism 122c allows the merchant 104 to insert the digital payment card equipped with a smart computer chip. In addition,
20 the chip reader mechanism 122c allows the point of sale terminal 106 to read
information associated with the customer 110 and the digital payment card in real
time for performing the digital payment transaction.
[0034] Going further, the point of sale terminal 106 includes the biometric
scanner 122d for real time biometric verification of the customer 110. The
25 biometric scanner 122d may be located at any suitable location on the point of
sale terminal 106. In an example, the biometric scanner 122d may be located at a top end of the point of sale terminal 106. In an embodiment of the present disclosure, the biometric scanner 122d may be embedded inside the point of sale
14

terminal 106. The biometric scanner 122d may be linked with the software
application 124a.
[0035] The biometric scanner 122d is configured to accept a biometric input
from the customer 110. Accordingly, the point of sale terminal 106 prompts the
5 customer 110 to enter a unique identification number associated with the
customer 110 on the graphical user interface screen 122a of the point of sale terminal 106. The unique identification number is linked to an account associated with at least one financial institution of a plurality of financial institutions. The financial institution corresponds to a commercial bank, an investment bank,
10 nonbank financial institutions and the like. In an embodiment of the present
disclosure, the biometric input is a fingerprint of the customer 110. In another
embodiment of the present disclosure, the biometric input may be any other type
of biometric identity of the customer 110.
[0036] In an embodiment of the present disclosure, the customer 110 may input
15 the biometric input on the graphical user interface screen 122a. The software
application 124a may present a user interface for entering the biometric input on the graphical user interface screen 122a. The biometric input may be entered directly on the graphical user interface screen 122a. In addition, the unique identification number is entered on the graphical user interface screen 122a. The
20 unique identification number is at least one of a numeric code, an alphanumeric
code and the like. The unique identification number is issued by a government authority with pre-stored data related to fingerprints and retina scans of the plurality of customers. In another example, a customer A carries a unique identification card (Aadhar Card) with QR code printed on the card. The point of
25 sale terminal 106 can read the QR code and the customer A can validate his or her
authentication using the biometric scanner.
[0037] The point of sale terminal 106 includes the printing mechanism 122e.
The printing mechanism 122e allows auto-printing of one or more payment
15

receipts in real time on completion of the digital payment transaction by the
customer 110. The digital payment transaction is done through at least one digital
payment mode of the plurality of digital payment modes. The one or more
payment receipts are printed for each type of digital payment mode in real time.
5 In an embodiment of the present disclosure, the printing mechanism 122e
includes a printer connected externally to the point of sale terminal 106. In
another embodiment of the present disclosure, the printing mechanism 122e
includes a printer connected internally to the point of sale terminal 106.
[0038] In an embodiment of the present disclosure, the customer 110 may select
10 the option of payment through the digital payment card in real time. The
customer 110 provides his or her digital payment card to the merchant 104. Accordingly, the merchant 104 can select whether to swipe the card on the digital payment card swiping mechanism 122b or insert the card on the slot associated with the chip reader mechanism 122c. In an embodiment of the present
15 disclosure, the merchant 104 swipes the digital payment card on the digital
payment card swiping mechanism 122b and proceeds with the digital payment transaction. The customer 110 may enter the information related to the digital payment card on the graphical user interface screen 122a. The information includes a pin number, a CVV code and the like. In another embodiment of the
20 present disclosure, the merchant 104 inserts the digital payment card on the slot of
the chip reader mechanism 122c and proceeds with the digital payment transaction. The chip reader mechanism 122c reads data encrypted in the smart computer chip. The customer 110 may enter the information related to the digital payment card on the graphical user interface screen 122a. The information
25 includes a pin number, a CVV code and the like. The software associated with
the point of sale terminal 106 verifies the information entered by the customer 110 by sending a request to the one or more financial institution servers 118. The one or more financial institution servers 118 verify the information and send an
16

acknowledgement to proceed with the transaction. The point of sale terminal 106
auto-prints a payment receipt of the digital payment transaction after the payment
is transferred.
[0039] In another embodiment of the present disclosure, the customer 110 may
5 select the option of payment through biometric verification and unique
identification number verification. The merchant 104 selects the option of payment through the biometric verification and unique identification number verification on the graphical user interface screen 122a. The customer 110 enters the unique identification number on the graphical user interface screen 122a.
10 Further, the software determines one or more accounts of the customer 110 in the
corresponding one or more financial institutions with which the unique identification number is linked. The customer 110 selects an account of the one or more accounts on the graphical user interface screen 122a and proceeds with the transaction. Accordingly, the customer 110 provides the biometric input on
15 the biometric scanner 122d of the point of sale terminal 106 linked to the selected
account. In an example, the customer 110 keeps a finger (say, index finger) on the biometric scanner 122d. The biometric scanner 122d records the biometric input (fingerprint) of the customer 110. The software associated with the point of sale terminal 106 matches the biometric input with pre-stored biometric inputs of
20 a plurality of customers in real time. The pre-stored biometric inputs are accessed
through a database associated with the one or more financial institution servers 118. The pre-stored biometric inputs may be accessed through a database associated with a server of the government authority who issued the unique identification number to the customer 110. The software receives information
25 related to confirmation of identity of the customer 110 in real time. Accordingly,
the software proceeds with the transaction after verification of the information. In an embodiment of the present disclosure, the payment is transferred directly to the bank account of the merchant 104. In addition, the printing mechanism 122e
17

auto-prints the payment receipt of the digital payment transaction after the
payment is transferred.
[0040] In yet another embodiment of the present disclosure, the customer 110
may select the option of payment through quick response code scanning. The
5 merchant 104 selects the option of payment through the quick response code
scanning on the graphical user interface screen 122a. The merchant 104 enters the amount of payment to be made by the customer 110 and generates a quick response code in real time. The quick response code contains a first set of information associated with the merchant 104. In an embodiment of the present
10 disclosure, the first set of information includes coded information about the
merchant 104. The coded information includes merchant ID, an ID associated with the point of sale terminal 106, total amount to be paid by the customer 110 to the merchant 104 and an invoice number generated for the digital payment transaction. In an embodiment of the present disclosure, the quick response code
15 generated by the software is a dynamic quick response code. The dynamic quick
response code is generated in real time based on selection of the merchant 104 and the customer 110 to perform the digital transaction through generation of the quick response code. In another embodiment of the present disclosure, the quick response code is a static quick response code. The static quick response code is
20 physically printed on a printing media and placed in a vicinity of the point of sale
terminal 106. The static quick response code contains coded information associated with the merchant 104. The static quick response code is scanned in real time by the customer 110 through a quick response code scanning option associated with a digital wallet application for completion of the digital payment
25 transaction.
[0041] The customer 110 accesses a QR code scanning feature on the digital
wallet application of the one or more digital wallet applications 112a on the portable communication device 112. The customer 110 scans the quick response
18

code in real time. The QR code scanning feature reads the first set of information
associated with the quick response code. Accordingly, the customer 110 may
enter payment information after scanning the quick response code on the interface
of the digital wallet application. The payment information includes information
5 related to digital payment card such as pin number, CVV number, a unique
password and the like. The one or more digital wallet servers 116 verify the information by sending a request to a server of the one or more financial institution servers 118. The request is received and the information is verified by the server of the corresponding financial institution. Accordingly, the software
10 proceeds with the transaction after verification of the information. In an
embodiment of the present disclosure, the payment is transferred directly to the bank account of the merchant 104. In addition, the printing mechanism 122e auto-prints the payment receipt of the digital payment transaction after the payment is transferred.
15 [0042] In yet another embodiment of the present disclosure, the customer 110
may select the option of payment through Unified Payments Interface. The customer 110 may enter information about the merchant 104 to whom the payment needs to be made along with the payment amount. In addition, the customer 110 enters a unique UPI pin on an interface of the point of sale terminal
20 106 and clicks on submit. Accordingly, the payment is complete and transferred
from a bank account of the customer 110 directly to a bank account of the
merchant 104.
[0043] In an embodiment of the present disclosure, the customer 110 may
initiate payment directly from the portable communication device 112. The
25 payment confirmation can be routed from the connecting logic or network to the
point of sale terminal 106. In an example, the customer 110 can initiate transaction by inputting merchant ID or scanning a QR code and the authentication can take place on the portable communication device 112.
19

[0044] In an embodiment of the present disclosure, the point of sale terminal
106 can be operated offline for collecting payments. The offline operation is done by connecting or mapping a printed card with the point of sale terminal 106. In an example, the point of sale terminal 106 prints a receipt or bill which has a QR code which can be scanned by a customer from a mobile device using any mobile wallet application to make payment. The payment confirmation is confirmed on the point of sale terminal 106 in real time. In addition, a pre-printed card may act as an extension of POS. In another example, a delivery boy going to deliver some stuff to a customer may ask the customer to pay using scanning a QR code on a visiting card of the delivery boy. The payment confirmation is routed to both the delivery boy and the POS machine.
[0045] In yet another example, the customer can scan a QR code printed on a
shopping material and the payment confirmation takes place on the point of sale terminal 106. In yet another example, a printed advertisement may include a QR code and any customer can scan and pay to buy the material advertised. The payment is confirmed on the POS machine. In an embodiment of the present disclosure, the point of sale terminal 106 can handle pre-approved payments. In an example, a customer with knowledge of an amount of payment to be made to a merchant can pre-pay the exact amount. The customer may confirm the payment on the point of sale terminal using either an OTP or by getting a QR code generated by a corresponding digital wallet provider and scanned on the POS machine.
[0046] Further, the software installed on the point of sale terminal 106 performs
filtering of one or more transactions in real time. The filtering is performed by collection of data associated with the one or more transactions in real time and analysis of the collected data associated with the one or more transactions in real time. The analysis is done by slicing and dicing the collected data to extract information about each of the one or more transactions.

[0047] FIG. 2 illustrates the block diagram of a computing device 200, in
accordance with various embodiments of the present disclosure. The computing device 200 includes a bus 202 that directly or indirectly couples the following devices: memory 204, one or more processors 206, one or more presentation components 208, one or more input/output (I/O) ports 210, one or more input/output components 212, and an illustrative power supply 214. The bus 202 represents what may be one or more busses (such as an address bus, data bus, or combination thereof). Although the various blocks of FIG. 2 are shown with lines for the sake of clarity, in reality, delineating various components is not so clear, and metaphorically, the lines would more accurately be grey and fuzzy. For example, one may consider a presentation component such as a display device to be an I/O component. Also, processors have memory. The inventors recognize that such is the nature of the art, and reiterate that the diagram of FIG. 2 is merely illustrative of an exemplary computing device 200 that can be used in connection with one or more embodiments of the present invention. Distinction is not made between such categories as "workstation," "server," "laptop," "hand-held device," etc., as all are contemplated within the scope of FIG. 2 and reference to "computing device."
[0048] The computing device 200 typically includes a variety of computer-
readable media. The computer-readable media can be any available media that can be accessed by the computing device 200 and includes both volatile and nonvolatile media, removable and non-removable media. By way of example, and not limitation, the computer-readable media may comprise computer storage media and communication media. The computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. The computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash

memory or other memory technology, CD-ROM, digital versatile disks (DVD) or
other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk
storage or other magnetic storage devices, or any other medium which can be
used to store the desired information and which can be accessed by the computing
device 200. The communication media typically embodies computer-readable
instructions, data structures, program modules or other data in a modulated data
signal such as a carrier wave or other transport mechanism and includes any
information delivery media. The term "modulated data signal" means a signal
that has one or more of its characteristics set or changed in such a manner as to
encode information in the signal. By way of example, and not limitation,
communication media includes wired media such as a wired network or direct-
wired connection, and wireless media such as acoustic, RF, infrared and other
wireless media. Combinations of any of the above should also be included within
the scope of computer-readable media.
[0049] Memory 204 includes computer-storage media in the form of volatile
and/or nonvolatile memory. The memory 204 may be removable, non¬removable, or a combination thereof. Exemplary hardware devices include solid-state memory, hard drives, optical-disc drives, etc. The computing device 200 includes one or more processors that read data from various entities such as memory 204 or I/O components 212. The one or more presentation components 208 present data indications to a user or other device. Exemplary presentation components include a display device, speaker, printing component, vibrating component, etc. The one or more I/O ports 210 allow the computing device 200 to be logically coupled to other devices including the one or more I/O components 212, some of which may be built in. Illustrative components include a microphone, joystick, game pad, satellite dish, scanner, printer, wireless device, etc.

What is claimed is:
1. A point of sale terminal for conducting a digital payment transaction between a customer and a merchant, the point of sale terminal enables the digital payment transaction through a plurality of digital payment modes, the point of sale terminal comprising:
a graphical user interface screen for allowing the merchant and the customer to interact with the point of sale terminal in real time and allow the merchant to select at least one digital payment mode of the plurality of digital payment modes for the customer, wherein the at least one digital payment mode being selected based on a choice of the customer in real time, wherein the at least one digital payment mode being enabled through a digital wallet application of a plurality of digital wallet applications installed on a portable communication device associated with the customer, wherein the graphical user interface screen being configured to display at least one of a quick response code and a barcode after receiving a payment request in real time and wherein the quick response code contains a first set of information associated with the merchant;
a digital payment card swiping mechanism installed on the point of sale terminal for allowing the customer of a plurality of customers to perform the digital payment transaction, wherein the digital payment transaction performed through the digital payment card being based on a choice of the customer;
a chip reader mechanism installed on the point of sale terminal;
a biometric scanner for real time biometric verification of the customer, wherein the biometric scanner being configured to accept a biometric input from the customer and prompting the customer to enter a unique identification number associated with the customer on the graphical user interface screen of the point of sale terminal, wherein the unique identification number being linked to an

account associated with at least one financial institution of a plurality of financial institutions;
a software installed inside a hardware layer of the point of sale terminal, wherein the software being configured to allow each merchant of a plurality of merchants to set up a payment collection and confirmation organization, wherein the payment collection and confirmation organization comprises a second set of information associated with at least one user of one or more users for authorizing the at least one user of the one or more users for collecting payment and receiving payment confirmation information in real time after the completion of the digital payment transaction in real time, wherein the payment confirmation information being received by the at least one user based on a pre-determined criterion, wherein the software being associated with a software application installed in the point of sale terminal and wherein the software being configured to generate at least one of the quick response code and the barcode based on the payment request; and
a printing mechanism for allowing auto-printing of one or more payment receipts in real time on completion of the digital payment transaction by the customer through at least one digital payment mode of the plurality of digital payment modes through the selected digital wallet application of the plurality of digital wallet applications installed on the portable communication device, wherein the one or more payment receipts being printed for each type of digital payment mode in real time.
The point of sale terminal as recited in claim 1, wherein the printing mechanism comprises a printer connected externally to the point of sale terminal. The point of sale terminal as recited in claim 1, wherein the printing mechanism comprises a printer connected internally to the point of sale terminal. The point of sale terminal as recited in claim 1, wherein the first set of information comprises coded information about the merchant, wherein the coded

information comprises merchant ID, an ID associated with the point of sale terminal, total amount to be paid by the customer to the merchant and an invoice number generated for the digital payment transaction.
5. The point of sale terminal as recited in claim 1, wherein the second set of information comprises personal information associated with at least one user of the one or more users selected by the merchant to receive the payment confirmation information in real time, wherein the personal information comprises a name of the at least one user, a phone number associated with the at least one user, an e-mail address associated with the at least one user, a type of association with the merchant and a gender of the at least one user.
6. The point of sale terminal as recited in claim 1, wherein the quick response code generated by the software being a dynamic quick response code, wherein the dynamic quick response code being generated in real time based on selection of the merchant and the customer to perform the digital transaction through generation of the quick response code.
7. The point of sale terminal as recited in claim 1, wherein the quick response code being a static quick response code, wherein the static quick response code being physically printed on a printing media and placed in a vicinity of the point of sale terminal, wherein the static quick response code contains coded information associated with the merchant and wherein the static quick response code being scanned in real time by the customer through a quick response code scanning option associated with a digital wallet application for completion of the digital payment transaction.
8. The point of sale terminal as recited in claim 1, wherein the software installed on the point of sale terminal further performs filtering of one or more transactions in real time, wherein the filtering being performed by:
collecting data associated with the one or more transactions in real time; and

analyzing the collected data associated with the one or more transactions in real time, wherein the analyzing being done by slicing and dicing the collected data to extract information about each of the one or more transactions.
9. The point of sale terminal as recited in claim 1, wherein the pre-determined criterion comprises receiving the payment confirmation information after completion of the transaction when the merchant being unavailable at a point of sale location associated with the installed point of terminal, wherein the payment confirmation information being received on a portable communication device associated with the at least one user of the one or more users, wherein the payment confirmation information being received by the at least one user for a pre-defined range of time and wherein the pre-defined range of time being set by the merchant in real time.
10. The point of sale terminal as recited in claim 1, wherein the plurality of digital payment modes comprises payment through credit card, payment through debit card, payment through scanning the quick response code, payment through the biometric verification and entering the unique identification number and payment through loyalty points.