TECHNICAL FIELD
[0001] The present disclosure in general relates to an automotive horn and, in
particular, relates to a multi-tone electronic horn for multiple applications such as
reverse buzzer, theft alarm, door lock-unlock audio notification, and the like.
BACKGROUND
[0002] Background description includes information that may be useful in
understanding the present disclosure. It is not an admission that any of the
information provided herein is prior art or relevant to the presently claimed
subject matter.
[0003] Horn is an acoustic emission device that is equipped to motor vehicles,
such as bikes, cars, trucks, bus, and the like. The horn is used by a driver of a
vehicle to alert others of the vehicle’s approach or presence, or to call attention to
some hazard. The horns are broadly categorized into disc horns and trumpet
horns.
[0004] FIG. 1 illustrates a conventional disc horn 100. The conventional disc
horn 100 is generally based on the same principle as that of electric bell used in
homes. The disc horn 100 includes a housing assembly 102 and a diaphragm
assembly 104. The housing assembly 102 consists of a sheet metal housing 106
which encases a fixed iron core 108 rigidly held at its bottom and aligned to its
central axis. Around the fixed iron core 108, a single coil 110 is wounded. One
end of the coil 110 is connected with a first terminal/connector 112A through a
rivet and/or washer, and another end of the coil 110 is connected with a second
terminal/connector 112B through the circuit breaker (CB) assembly 114 which is
held offset from the central axis of the housing assembly 102. The CB assembly
114 consists of two metallic strips 114A and 114B carrying contacts 114D. One of
the strips 114A is of thin steel sheet and also called a spring and another strip
114B is comparatively thicker steel sheet and also called as support. Both the
strips 114A and 114B are insulated from each other by an insulating tab 114C
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except at the contacts 114D on their ends. At the contacts 114D, the strips 114A
and 114B are in touch with each other. The diaphragm assembly 104 consists of a
moving iron core 116 fixed to a sheet metal diaphragm 118. Periphery of the sheet
metal diaphragm 118 is rigidly held in the housing assembly 102 by crimping or
bolting (not shown in FIG. 1).
[0005] In operation, when supply from direct current (DC) source is switchedon,
the current flows through the coil 110 and generates an electromagnetic field
in the fixed iron core 108. The electromagnetic field in the fixed iron core 108
causes the moving iron core 116 to be pulled towards the fixed iron core 108.
During its motion towards the fixed iron core 108, the moving iron core 116
pushes the spring 114A and moves away the contacts 114D of the strips 114A and
114B from each other, thereby breaking an electric circuit. Such circuit break
stops the further current flow in the coil 110 and causes the magnetic flux in the
fixed iron core 108 to decrease. Due to elasticity of material of the sheet metal
diaphragm 118 and due to the decrease in the magnetic flux, the sheet metal
diaphragm 118 pulls back the moving iron core 116 to its neutral position. As the
moving iron core 116 moves back, the spring 114A also returns to its original
position and thus contacts 114D of the strips 114A and 114B are again in touch
with each other. With such contact of the strips 114A and 114B, the electric
circuit is again closed and the current resumes its flow through the coil 110. This
process of circuit breaking and/or closing is generally repeated at around 500
cycles per second for high pitch horns and around 420 cycles per second for low
pitch horns.
[0006] In addition to the above mentioned parts, the diaphragm assembly 104
carries a round sheet metal part called resonator 120. The resonator 120 is
designed to receive vibration which is resulted when the moving core 116 hits the
fixed core 108. After receiving resonance, the resonator 120 comes in resonance
and amplifies an acoustic emission through air columns existing between
resonator 120 and the diaphragm 118.
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[0007] The other type of horns in use is the trumpet horn. The trumpet horn
includes all elements of the disc horn except for the resonator 120. The resonator
120 is replaced by a plastic trumpet with addition of metallic platine. The working
of the trumpet horn is such that the moving iron core 116 does not collide with the
fixed iron core 108 during its movement and maintain a gap. Due to the
movement of the diaphragm 118 along with the moving iron core 116, the air
between the diaphragm 118 and the platine is compressed and decompressed. The
compressed air is allowed to pass, through a hole in the platine, towards the
plastic trumpet where the acoustic emission is appropriately amplified and
emitted.
[0008] Nowadays, electronic horns are becoming popular due to their compact
and less complex configuration. For instance, the electronic horn includes all the
elements of the conventional disc / trumpet horn, while replacing the complex CB
(circuit breaker) assembly with a compact printed circuit board (PCB) assembly.
The PCB assembly is generally preconfigured at the manufacturer level to
generate and control the switching of the current input through PWM (Pulse
Width Modulation).
[0009] However, it is well known that, at present, the electronic horns are
designed with only one type of acoustic emission having only one duration, only
one frequency, and only one sound level. The electronic horns are mounted on the
vehicles during their construction and a one-tone acoustic signal the vehicles emit
is indistinctly utilized for several types of signals, such as the signal associated
with the opening/closing of doors, the activation/deactivation of anti-theft alarm
systems, and the like.
[0010] It is evident from above that the one-tone signal emitted by said
acoustic emission devices, though being effective for the first primary function of
signaling irregular conditions, may be misinterpreted by users in two ways. First,
in establishing what specific type of signal the intervention refers to among those
that are submitted to the control circuit, and second, in establishing what vehicle
said signals come from.
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[0011] Accordingly, there lies a need to have a multi-tone electronic horn
which is capable of generating various types of acoustic emissions.
OBJECTS OF THE PRESENT SUBJECT MATTER
[0012] Some of the objects of the present disclosure, which at least one
embodiment herein satisfies are as listed herein below.
[0013] A general object of the present disclosure is to provide a horn with
multi-tone along with basic alarm function. It will be fit for reverse buzzer, theft
alarm and door lock-unlock audio notification application in single horn for both
high pitch and low pitch horn with multi-tone sound feature.
[0014] Another object of the present disclosure is to provide a microcontroller
configured to generate varying frequencies at fixed duty cycles for generation of
multiple acoustic emissions from a single horn assembly.
[0015] Another object of the present disclosure is to provide a unique
connector assembly which allows a manufacturer to reconfigure the
microcontroller to obtain different tone / sound.
SUMMARY
[0016] This summary is provided to introduce concepts related to a multi-tone
electronic horn. The concepts are further described below in the detailed
description. This summary is not intended to identity key features or essential
features of the claimed subject matter, nor is it intended to be used to limit the
scope of the claimed subject matter.
[0017] In an embodiment, the present subject matter refers to a multi-tone
horn. The multi-tone horn includes a horn assembly and a connector assembly
coupled to the horn assembly. The connector assembly including a printed circuit
broad (PCB) module has a microcontroller. The microcontroller is operable to
generate varying frequencies at fixed duty cycles for generation of multiple
acoustic emissions from the horn assembly.
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[0018] In another embodiment, the present subject matter refers a vehicle
having the multi-tone horn described in the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The detailed description is provided with reference to the
accompanying drawings. In the drawings, the left-most digit(s) of a reference
number identifies the drawing in which the reference number first appears. The
same numbers are used throughout the drawings to reference like features and
components. The drawings illustrate exemplary embodiments of the present
disclosure and, together with the description, serve to explain the principles of the
present disclosure. The drawings are for illustration only, which thus is not a
limitation of the present disclosure, and wherein:
[0020] FIG. 1 illustrates an exploded view of conventional disc horn
assembly;
[0021] FIG. 2A illustrates an exploded view of an electronic-trumpet horn, in
accordance with an exemplary embodiment of the present subject matter;
[0022] FIG. 2B illustrates different perspective views of an electronic-trumpet
horn, in accordance with an exemplary embodiment of the present subject matter;
[0023] FIG. 3 illustrates a sound tube of a trumpet, in accordance with an
exemplary embodiment of the present subject matter;
[0024] FIG. 4 illustrates a perspective view of connector pins mechanism, in
accordance with an exemplary embodiment of the present subject matter;
[0025] FIG. 5A illustrates a perspective view of the PCB module, in
accordance with an exemplary embodiment of the present subject matter;
[0026] FIG. 5B illustrates a top view of the PCB module, in accordance with
an exemplary embodiment of the present subject matter;
[0027] FIG. 5C illustrates a bottom view of the PCB module, in accordance
with an exemplary embodiment of the present subject matter;
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[0028] FIG. 5D illustrates a block diagram of the schematic diagram of the
PCB module, in accordance with an exemplary embodiment of the present subject
matter;
[0029] FIG. 5E illustrates a schematic diagram of the PCB module, in
accordance with an exemplary embodiment of the present subject matter; and
[0030] FIG. 6 illustrates a pulse width modulation (PWM), in accordance with
an exemplary embodiment of the present subject matter.
DETAILED DESCRITION
[0031] The following is a detailed description of embodiments of the
disclosure depicted in the accompanying drawings. The embodiments are in such
detail as to clearly communicate the disclosure. However, the amount of detail
offered is not intended to limit the anticipated variations of embodiments; on the
contrary, the intention is to cover all modifications, equivalents, and alternatives
falling within the spirit and scope of the present disclosure as defined by the
appended claims.
[0032] As used in the description herein and throughout the claims that
follow, the meaning of “a,” “an,” and “the” includes plural reference unless the
context clearly dictates otherwise. Also, as used in the description herein, the
meaning of “in” includes “in” and “on” unless the context clearly dictates
otherwise.
[0033] Groupings of alternative elements or embodiments of the present
subject matter disclosed herein are not to be construed as limitations. Each group
member can be referred to and claimed individually or in any combination with
other members of the group or other elements found herein. One or more
members of a group can be included in, or deleted from, a group for reasons of
convenience and/or patentability. When any such inclusion or deletion occurs, the
specification is herein deemed to contain the group as modified thus fulfilling the
written description of all groups used in the appended claims.
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[0034] Various terms as used herein are shown below. To the extent a term
used in a claim is not defined below, it should be given the broadest definition
persons in the pertinent art have given that term as reflected in printed
publications and issued patents at the time of filing.
[0035] Unless otherwise defined, all terms, and especially any technical
and/or scientific terms, used herein may be taken to have the same meaning as
commonly understood by one having an ordinary skill in the art.
[0036] Before describing in detail embodiments, it may be observed that the
drawings are showing only those specific details that are pertinent to
understanding the embodiments of the present invention so as not to obscure the
disclosure with details that will be readily apparent to those of ordinary skill in the
art having benefit of the description herein.
[0037] Embodiments explained herein pertain to electronic horn for multiple
applications such as reverse buzzer, theft alarm, door lock-unlock audio
notification, and the like. In an embodiment, the present subject matter refers to a
multi-tone horn. In an example, the multi-tone horn is having a diameter of 80
mm, and can be one of a trumpet horn or a disc horn. The multi-tone horn
includes a horn assembly and a connector assembly coupled to the horn assembly.
The connector assembly including a printed circuit broad (PCB) module has a
microcontroller. The microcontroller is operable to generate varying frequencies
at fixed duty cycles for generation of multiple, say, six, acoustic emissions from
the horn assembly.
[0038] In an aspect, the microcontroller can be configured to generate a
plurality of acoustic emissions.
[0039] In an aspect, the connector assembly includes four configurable pins
for the configuration of the microcontroller. The four configurable pins includes a
first pin (A) for 12 V power input, a second pin (B) for function selection signal, a
third pin (C) for configuration of the microcontroller, and a fourth pin (D) electric
ground.
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[0040] To further clarify advantages and features of the present subject
matter, a more particular description of the present subject matter will be rendered
by reference to specific embodiments thereof, which is illustrated in the appended
drawing. It is appreciated that these drawings depict only typical embodiments of
the present subject matter and are therefore not to be considered limiting its scope.
The present subject matter will be described and explained with additional
specificity and detail with the accompanying drawings.
[0041] FIG. 2A illustrates an exploded view of a horn 200, in accordance with
an exemplary embodiment of the present subject matter. In an example, the horn
200 can be 12 V electronic-trumpet horn with 80 mm diameter.
[0042] The horn 200 may include, among other parts, a diaphragm-cumtrumpet
assembly 202, a housing assembly 204, a connector assembly 206, a
printed circuit board (PCB) assembly 208, and a bracket assembly 210. In an
example, the diaphragm-cum-trumpet assembly 202 and the housing assembly
204 can be collectively referred to as a horn assembly.
[0043] The diaphragm-cum-trumpet assembly 202 may include a trumpet 212,
a platine 214, and a diaphragm 216. The trumpet 212 is shown in detail in FIG. 3.
The trumpet 212 has a sound tube 302 with three dissimilar sections, a first
uniform section 302A, a second varying section 302B, and a third exponential
section 302C. The first uniform section 302A allows the traveling of sound with
negligible loss in attenuation when walls of the trumpet 212 are finished properly.
The second varying section 302B is linearly varying in construction. Starting from
the first uniform section 302A, the second varying section 302B is tapered or
linearly varying. Because of such liner and varying construction, impedance is
less and a part of sound wave is reflected while another part of sound wave is
transmitted to third exponential section 302C. The third exponential section 302C
is formed of such dimension that it even present lower impedance, and a large part
of the sound wave is transmitted to free atmosphere while another part of sound
wave is reflected towards inside. Such reflected sound wave adds constructively
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with newly generated sound wave to provide pleasant acoustic/sound emission
from the trumpet 212.
[0044] Further, the platine 214 includes an air exit hole (not shown in figures)
and is sandwiched between the trumpet 212 and the diaphragm 216. The platine
214 fits on bottom of the trumpet 212 and is generally held on to the trumpet 212
with the aid of silicon rubber, such as washer 218, or with some advanced
processes such as ultrasonic welding. A person skilled in the art can appreciate
that a proper fitment of the platine 214 below the trumpet 212 is important to have
no loss in sound pressure inside the sound tube 302. The platine 214 is fixed to the
trumpet 212 in such a manner that face of the platine 214 is opposite to the
diaphragm 216, and both the platine 214 and the diaphragm 216 are held together
at their periphery by locking means, such as diaphragm washer 220. In fixed
position, both the platine 214 and the trumpet 212 enclose a volume which has
exit at the hole in the platine 214. This hole is positioned directly below and
aligned to an entrance of the sound tube 302 of the trumpet 212. The hole may be
appropriately contoured to allow smooth flow of sound pressure from the
enclosed volume towards the sound tube 302.
[0045] At its bottom portion, the diaphragm 216 includes a mobile nucleus or
a moving iron core 222. The moving iron core 222 is fixed at the bottom portion
of the diaphragm 216 in such a manner that one longitudinal end of the moving
iron core 222 is fixed with the bottom portion of the diaphragm 216 while other
longitudinal end of the moving iron core 222 lies in the housing assembly 204.
[0046] The diaphragm-cum-trumpet assembly 202 and the housing assembly
204 are fixed in an air tight manner using a gasket 224. The housing assembly 204
may consist of a sheet metal housing 226. The housing 226 encases a fixed
nucleus or a fixed iron core 228 rigidly held to its bottom and aligned to its central
axis. Around the fixed iron core 228, a coil/bobbin assembly 230 is mounted
using a pair of riveting washers 232. The coil/bobbin assembly 230, comprising of
spool and wire, is adapted to receive electricity from the connector assembly 206
for producing electromagnetic field in the housing assembly 204.
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[0047] The connector assembly 206 is formed of connector washers 232, a
filter pipe 234, a filter membrane 236, rivets 238, and a connector 240. The
connector assembly 206 provides an electrical supply to the horn 200.
[0048] The electrical supply being supplied to the coil/bobbin assembly 230
through the connector assembly 206 is controlled by the PCB assembly 208. The
PCB assembly 208 includes a PCB module 242 fixed within the bottom portion of
the connector assembly 206 and covered by a PCB cover 244 using an epoxy
coating. Also, in an aspect, the PCB module 242 is connected to unique pin
mechanism of the connector 240. The connector 240 with an exemplary four pin
mechanism is shown in FIG. 4. Pin A is for 12 V power input, Pin B is for alarm
trigger signal (function selection signal), Pin C is for tuning signal (required for
programming of the PCB module 242), and Pin D is for electric ground. Although
four pins are shown in FIG. 4, the connector 240 can be designed with less or
more number of pins without deviating from the scope of the present disclosure.
[0049] Further, for the attachment of the horn 200 to a vehicle, the horn 200
or the connector assembly 206 is connected to the bracket assembly 208. In an
example, the bracket assembly 208 may include a bracket 246, a bracket washer
248, and a nut 250. In accordance with an exemplary implementation of the
present matter, FIG 2B illustrates various perspective views of the horn 200.
[0050] As per an implementation of the present subject matter, various views
of the PCB module 242 are show in FIGS. 5A, 5B, and 5C. For instance, FIG. 5A
shows a perspective view of the PCB module 242, FIG. 5B shows a top view of
the PCB module 242, FIG. 5C shows a bottom view of the PCB module 242, FIG.
5D shows a schematic diagram of the PCB module 242, and FIG. 5E shows a
block diagram of the schematic diagram of the PCB module 242, in accordance
with the present implementation of the present subject matter.
[0051] For the sake of brevity and in order to better explain the present
subject matter, elements of the PCB module 242 that are relevant to the present
subject matter are described herein. As shown in FIGS. 5A, 5B, 5C, 5D, and 5E,
the PCB module 242 includes, among the other components and not limited to, a
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12 V power source (transformer) 502, a 5V voltage regulator 504 such as LDO
TLV760, a microcontroller 506 such as PIC16F18313, an avalanche diode 508, a
bipolar (axial/radial) capacitor 510, a transient voltage suppression (TVS) diode
512, a Zener diode 514, a metal–oxide–semiconductor field-effect transistor
(MOSFET) driver 516 such as NPN PMST222A, a N-channel Power MOSFET
518 such as IPD070N10S12, a couple of ceramic resistors 520, an electrolytic
capacitor 522, and a coil 524.
[0052] In an aspect, the TVS diode 512 is provided for surge voltage
protection, the avalanche diode 508 is provided for reverse polarity protection,
and the 5V voltage regulator 504 is provided for protection against over voltage at
micro-controller 506.
[0053] The electronic circuit as shown in FIGS. FIGS. 5A, 5B, 5C, 5D, and
5E is a standard design and is capable of working for a voltage source of 12V and
as well as 24V. Since the electronic circuit is a standard design, working and
connection of the circuitry is not described in the present disclosure for the sake of
brevity and clarity.
[0054] In operation, when a driver of a vehicle presses a horn-activation
button, for example, disposed on a vehicle steering, the horn 200 receives a 12 V
power supply from a battery of that vehicle. The 12 V power supply is
simultaneously supplied to the MOSFET 518 via the coil 524 (FIG. 5D) and to the
5V voltage regulator 504.
[0055] The 5V voltage regular 504 can be a low dropout regulator which
regulates an output voltage at 5V that is powered at a higher voltage of 12V. The
regulated 5V power is then supplied to the microcontroller 506 such as
PIC16F18313. The microcontroller 506 can be a microprocessor that is preprogrammed
for generating varying frequencies, say six varying frequencies, and
at fixed duty cycles. That is, the microcontroller 506 can be pre-programmed for
the generation of programmable sequence being comprised of a signal having
variable sound frequency and sound level cycles.
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[0056] The programming of such varying sound frequencies is made through
software directly by the vehicles’ or horns’ manufacturer, and may be modified
for a single fixed personalized sound frequency for purchasing users, through the
Pin C of the unique pin mechanism of the connector 240, using intelligent
electronic unit or onboard computer. An example of preset sound level cycles
capable of being used for the personalized programming of the acoustic signals is
shown in FIG. 6. After a fixed time, sound level cycles are varied to produce
different acoustic emission form the horn 200. The impulses for the various cycles
are square waves that change with regard to each other according to the duration
of the active part, for instance, square waves of the duration of 2 msec for an
active part of 200-800 μsec.
[0057] Further, according to an exemplary implementation, the
microcontroller 506 may be configured to generate multiple pitches, tones, or
notes simultaneously by modifying the interval at which different frequencies are
generated to create different tones. For example, the microcontroller 506 may be
configured to switch the MOSFET 518 to operate the horn assembly at 350 to 500
cycles every second, so as to generate varying frequencies at fixed duty cycles for
generation of multiple acoustic emissions from a single horn 200. This provides
an advantage over related art horns that use two separate horns to create multiple
acoustic emissions.
[0058] Due to unique pre-programming in microcontroller 506, it is able to
generate multiple tones using different pulse width modulated (PWM) frequencies
and continuously blow all the multiple tones/sounds. In an example but not
limited to, the multiple tones/sounds may be similar to reverse alarm, theft alarm,
door lock-unlock audio notification, and the like. Alternatively, as mentioned
above, the manufacturers can modify the microcontroller 506 to generate a single
PWM frequency corresponding to a single tone, say, for alarm function.
Accordingly, the horn 200 implemented in accordance with the present subject
matter can be used as an alarm horn, reverse alarm horn, theft alarm, door-
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lock/unlock audio notification, and the like, in a single horn in both high and low
pitch/tone.
[0059] Based on pre-set programming or configuration of the microcontroller
506, the microcontroller 506 generates and transmits PWM frequencies to the
MOSFET driver 516. The MOSFET driver 516 further transmits a control signal
to the MOSFET 518. Based on the received control signal, the MOSFET 518
energizes/de-energizes coil/bobbin assembly 230 at 12V. In case the control
signal is pertaining to energization of the coil/bobbin assembly 230, the supply
from the power source, say, DC source, is switched ON to supply the electric
current from the coil/bobbin assembly 230 mounted on the fixed iron core 228
start increasing and with which magnetic flux through fixed iron core 228. Due to
the flow and increase in the current flow through the coil/bobbin assembly 230,
the fixed iron core 226 gets magnetized. This causes the moving iron core 222
fixed on the diaphragm 216 to be pulled towards the fixed iron core 228. As
current supply is switched OFF through controlled switching of micro-controller
506 of the PCB module 242, the magnetic flux starts decreasing. Due to the
decrease in magnetic flux and due to the elasticity of material of diaphragm 216,
the diaphragm 216 pulls back the moving iron core 222 back to its neutral
position. As the moving iron core 222 moves back, the microcontroller 506 again
trigger the switching ON of the current supply in the coil/bobbin assembly 230.
Then, the current start following again and caused the magnetic flux to increase.
This process repeats again at around 500 cycles per second for high pitch horn and
around 420 cycles per seconds for low pitch horn. This way the diaphragm 216
with the iron moving core 222 is set into periodic motion. While movement, the
moving iron core 222 does not collide with the fixed iron core 228 and maintains
a gap.
[0060] Due to the movement of the diaphragm 216, the air between the
diaphragm 216 and the platine 214 is compressed and decompressed. As
described above, the platine 214 is a component between the diaphragm 216 and
the trumpet 212 of the horn 200. The platine 214 includes the hole which allows
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the compressed air to be communicated to the sound tube 302 of trumpet 212
where the sound/acoustic is appropriately amplified and emitted/outputted.
[0061] While specific language has been used to describe the disclosure in
relation to the trumpet horn, any limitations arising on account of the same are not
intended. As would be apparent to a person in the art, various working
modifications may be made to the method in order to implement the inventive
concept as taught herein. For instance, the present disclosure is equally applicable
to the disc horn with further minor working modifications.
[0062] The drawings and the forgoing description give examples of
embodiments. Those skilled in the art will appreciate that one or more of the
described elements may well be combined into a single functional element.
Alternatively, certain elements may be split into multiple functional elements.
Elements from one embodiment may be added to another embodiment. For
example, orders of processes described herein may be changed and are not limited
to the manner described herein.
[0063] Benefits, other advantages, and solutions to problems have been
described above with regard to specific embodiments. However, the benefits,
advantages, solutions to problems, and any component(s) that may cause any
benefit, advantage, or solution to occur or become more pronounced are not to be
construed as a critical, required, or essential feature or component of any or all the
claims.
[0064] While the present disclosure is susceptible to various modifications
and alternative forms, specific embodiment has been shown by way of example in
the drawings and will be described in detail below. It should be understood,
however that it is not intended to limit the present subject matter to the particular
forms disclosed, but on the contrary, the present subject matter is to cover all
modifications, equivalents, and alternative falling within the spirit and the scope
of the invention as defined by the appended claims.
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ADVANTAGES OF PRESENT SUBJECT MATTER
[0065] The present disclosure provides a multi-tone horn with different types
of horn sound.
[0066] The present disclosure provides a horn as a multi-application acoustic
device.
[0067] The present disclosure provides a microcontroller configured to
generate varying frequencies at fixed duty cycles for generation of multiple
acoustic emissions from a single the horn assembly.
[0068] The present disclosure provides a unique connector assembly which
allows an end user to reconfigure the microcontroller to obtain different tone /
sound.
[0069] The present disclosure provides a multi-tone horn that can be used as
alarm horn, a reverse alarm, a theft alarm, a door lock-unlock audio notification,
and the like.

We claim:
1. A multi-tone horn, comprising:
a horn assembly; and
a connector assembly coupled to the horn assembly, said connector
assembly comprising a printed circuit broad (PCB) module has a
microcontroller, wherein the microcontroller is operable to generate
varying frequencies at fixed duty cycles for generation of multiple acoustic
emissions from the horn assembly.
2. The multi-tone horn as claimed in claim 1, wherein the microcontroller is
operable to generate at least six acoustic emissions at fixed duty cycles.
3. The multi-tone horn as claimed in claim 1, wherein the microcontroller is
configurable to generate one acoustic emission.
4. The multi-tone horn as claimed in claim 4, wherein the connector assembly
comprises four configurable pins for the configuration of the
microcontroller.
5. The multi-tone horn as claimed in claim 4, wherein the four configurable
pins comprises a first pin (A) for 12 V power input, a second pin (B) for
function selection signal, a third pin (C) for configuration of the
microcontroller, and a fourth pin (D) electric ground.
6. The multi-tone horn as claimed in claim 1, wherein the multi-tone horn is
having a diameter of 80 mm.
7. The multi-tone horn as claimed in claim 1, wherein multi-tone horn includes
one of a trumpet horn or a disc horn.
8. A vehicle comprising a multi-tone horn as claimed in any one of the
preceding claims 1-7.