DESC:TECHNICAL FIELD
[0001] The present invention relates to a stylus system for an electronic device.

BACKGROUND
[0002] Electronic devices such as smartphones and tablets are usually available with touch screen user interfaces, which allow users to make use of their fingertip movements as input to select and navigate through the screens to operate the devices. In certain cases, a fingertip of a user may be too large or the contact of the fingertip with the screen may be imprecise, which leads to difficulty in precise selection of desired icons and/or in performing desired operations. Accordingly, a stylus accessory with a pointed tip can be provided as an input device to enhance the navigation and precision of a touch screen interface. Provision of a stylus is particularly necessary for outdoor applications such as surveying, reconnaissance and military applications where precise operation is crucial.
[0003] It has been noticed that in case of rough handling of the electronic device, which may be unintentional, or which may be inevitable due to the environment and circumstance of use, the stylus being a separate accessory from the electronic device tends to become lost or separated from the proximity of the electronic device. Hence, the stylus may not be available to serve its purpose when needed. This becomes highly problematic in applications where precise operation is crucial.
[0004] Accordingly, there has been identified a need to devise a system to secure a stylus in immediate proximity to the electronic device when the stylus is not being used. There exists a further need to configure a system to retain the stylus without sacrificing the accessibility of the stylus to operate the touch screen.

SUMMARY
[0005] Accordingly, an exemplary embodiment of the present invention discloses a stylus system for an electronic device, said stylus system comprising: a stylus configured to communicate with a display screen for transmitting an input to the electronic device; and a stylus holder having: a plurality of mounting holes in a horizontal direction at a first surface and a second surface of a front portion of the stylus holder, for assembling the stylus holder on a base of the electronic device, and a bore extending vertically from the first surface towards a bottom end of the stylus holder for holding and coupling the stylus to the stylus holder.

BRIEF DESCRIPTION OF DRAWINGS
[0006] The above and other aspects, features, and advantages of certain exemplary embodiments of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings in which:
[0007] Figure 1 illustrates a stylus system (100) including an electronic device, a stylus, a stylus holder, a tether and a bracket, according to a first exemplary and/or preferable embodiment of the present invention;
[0008] Figure 2 depicts an exploded view of the stylus system (100), showing the assembly of the stylus, the stylus holder, the tether and the bracket, according to the embodiment of the present invention;
[0009] Figure 3 through figures 3A-3F depicts various views of the stylus holder, according to the embodiment of the present invention, wherein Figure 3A corresponds to a perspective view, Figure 3B corresponds to a side view, Figure 3C corresponds to a front view, Figure 3D corresponds to a back view, Figure 3E corresponds to a top view and Figure 3F refers to a cross section view taken along the line F-F of Figure 3C;
[0010] Figure 4 depicts an isometric view of the stylus connected to tether, according to the embodiment of the present invention;
[0011] Figure 5 illustrates an exploded isometric view of the stylus, according to the embodiment of the present invention;
[0012] Figure 6 depicts the assembly of the stylus tip, according to the embodiment of the present invention;
[0013] Figure 7 illustrates the assembly of the tether with the bracket and an end cap of the stylus, according to the first exemplary embodiment of the present invention;
[0014] Figure 8 illustrates the configuration of the bracket, according to the embodiment of the present invention;
[0015] Figure 9 illustrates the stylus system including an electronic device, a stylus, a stylus holder, a tether and a bracket, according to the second exemplary and/or preferable embodiment of the present invention; and
[0016] Figure 10 illustrates the assembly of the tether with the bracket and an end cap of the stylus, according to the second exemplary embodiment of the present invention.
[0017] Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and may have not been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to the other elements to help to improve understanding of various exemplary embodiments of the present disclosure. Throughout the drawings, it should be noted that like reference signs are used to depict the same or similar elements, features, and structures.

DETAILED DESCRIPTION OF THE INVENTION
[0018] While this invention is susceptible of embodiments in many different forms, there is shown in the drawings and will herein be described in detail, a preferred embodiment of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspects of the invention to the embodiment illustrated. Other aspects, advantages, and salient features of the invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the invention. Embodiments of the present disclosure will now be described with reference to the accompanying drawings. Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to a person skilled in the art. Numerous details are set forth relating to specific components to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
[0019] In general, the present invention provides a stylus system for safely and ruggedly securing a stylus in proximity to an electronic device when the stylus is not in use.
[0020] According to an aspect, the present invention provides a stylus system for an electronic device including a stylus, a stylus holder configured to hold the stylus when the stylus is not in use, and a tether having first end connected to the stylus and second end connected to one or both of the stylus holder and the electronic device. The stylus is used to transmit user input to the electronic device.
[0021] According to an embodiment, the stylus system for the electronic device comprises: a stylus for transmitting a user input to the electronic device, said stylus having a shank, and a tip connected to the bottom of the shank with an end surface of the tip configured to come in contact with a screen of the electronic device to transmit user input to operate the electronic device; a stylus holder mounted to a base of the electronic device, said stylus holder having a mounting holes in a horizontal direction at a first surface and a second surface of a front portion to assemble the stylus holder to the base, said stylus holder has a bore vertically extending from the first surface to a length more than a half of the length of the stylus holder, said bore has a top portion with a width larger than a bottom portion for a coupling mechanism of the stylus and the stylus holder; and a tether having first end connected to the stylus and second end connected to one or both of the stylus holder and the base through a bracket, for safely and ruggedly securing the stylus in proximity to the electronic device when the stylus is not in use. The tether attached to the stylus prevents the stylus from getting lost due to accidental drop. The diameter of the shank of stylus is equal to or smaller, preferably slightly smaller, than the diameter of the bore of the stylus holder to engage and disengage the stylus within the stylus holder.
[0022] According to the embodiment, the stylus comprises an end cap attached to a second end of the shank and first end of the tether is attached to the end cap of the stylus.
[0023] According to the embodiment, the electronic device includes a display screen and an electronic module. The electronic module typically includes one or more printed circuit boards (PCBs). In an embodiment, the display screen is a capacitive touch interactive display. In an alternate embodiment, the display screen is a resistive touch interactive display. However, the type of the display screen is not limited to capacitive and resistive touch interactive displays, but includes other types such as infrared touch, optical imaging touch, etc.
[0024] According to the embodiment, the shank of the stylus has an external thread formed at least a portion thereof. According to another embodiment, the bottom portion of the bore of stylus holder is provided with an internal threaded portion to grip the shank of the stylus.
[0025] In yet another embodiment, the shank of the stylus is provided with an external thread and the bore of the stylus holder is provided with an internal thread complementary to said external thread of the stylus shank, so that the stylus can be inserted into the bore and the shank can be rotated against the surface of the bore so as to engage the external thread of the stylus shank with the internal thread of the bore of the stylus holder. That is, the stylus system for the electronic device of the embodiment comprises: a stylus for transmitting a user input to the electronic device, said stylus having a shank with an external thread formed at least at a portion thereof, and a converging tip connected to the bottom of the shank with an end of said tip configured to come in contact with a screen of the electronic device to transmit user input to the electronic device; a stylus holder mounted to a base of the electronic device, said stylus holder having a bore that is at least partially threaded so as to selectively engage and disengage with the external thread of the shank of the stylus; and a tether having first end connected to the stylus and second end attached to one or both of the stylus holder and the base through a bracket, for safely and ruggedly securing the stylus in proximity to the electronic device when the stylus is not in use.
[0026] The external thread of the stylus shank may be made to engage with the interstices of the internal thread of the stylus holder by inserting the shank inside the bore of the stylus holder and rotating the shank in a first direction. The external thread of the stylus shank can also be made to disengage with the interstices of the internal thread of the stylus holder by rotating the shank in a second direction opposite to the first direction.
[0027] According to the embodiment, the base has mounting holes to mount the stylus holder thereon using fasteners such as screws. The bracket attached to second end of the tether may be mounted to the stylus holder or the base or both, by driving suitable fasteners through one or more holes made in the stylus holder or the base or both, as applicable.
[0028] In the embodiment, the base of the electronic device is made from at least one material selected from aluminium, copper, alloys thereof, plastics and metal matrix composites (MMCs). The stylus and the stylus holder may be made from the same materials. However, the materials of the base, stylus, and stylus holder are not limited thereto.
[0029] The tether of the present invention may be made of a flexible material. The length of the tether may be adjustable so as to allow a user to conveniently adjust the length of the tether as required. In an exemplary embodiment, the tether is made from at least one material selected from nylon, steel, tin plated copper and metal matrix composites. However, the material of the tether is not limited thereto.
[0030] According to an aspect of the present invention a stylus system (100) for an electronic device (10), said stylus system (100) comprising: a stylus (20) configured to communicate with a display screen (15) for transmitting an input to the electronic device (10); and a stylus holder (30) having: a plurality of mounting holes (37, 38) in a horizontal direction at a first surface (30F1) and a second surface (30F2) of a front portion of the stylus holder (30), for assembling the stylus holder (30) on a base (12) of the electronic device (10), and a bore (30B) extending vertically from the first surface (30F1) towards a bottom end of the stylus holder (30) for holding and coupling the stylus (20) to the stylus holder (30).
[0031] [First Exemplary and/or Preferable Embodiment]
[0032] Figure 1 illustrates a first exemplary and/or preferable embodiment of a stylus system (100) of the present invention. Referring to Figure 1, the stylus system (100) comprises an electronic device (10) which has a mounting provision for a display screen (15) with the electronic module. The electronic module typically includes one or more printed circuit boards (PCBs). The display screen (15) is supported by a base (12). The display screen (15) of the present embodiment is touch sensitive and may be configured as a resistive touch or a capacitive touch type screen. The system (100) includes a stylus (20) which serves as a user input device for the electronic module. Unless otherwise specified, the term “stylus” referred herein onwards is used to indicate an input device to an electronic device associated with a touch display screen. The stylus (20) can be used to write, draw, or select among choices presented on the touch display screen (15), which forms the majority of the front face of the electronic device (10). The stylus (20) is configured to be held in a stylus holder (30) which is essentially a housing that has a bore. The stylus holder (30) is mounted to the base (12) of the electronic device (10). A tether (40) is provided to hold the stylus attached to the electronic device (10). The tether (40) prevents loss or separation of the stylus (20) from the proximity of the electronic device (10). First end (41) of the tether (40) is connected to the stylus (20) and second end (42) of the tether (40) is connected to a bracket (50). The bracket (50) is fastened to the stylus holder (30).
[0033] Figure 2 depicts an exploded view of the stylus system (100) of the exemplary embodiment. Figure 3 through figures 3A-3F depicts various views of the stylus holder (30) of the present embodiment.
[0034] Figure 3A illustrates a perspective view of the stylus holder (30) of the present embodiment. The front portion of the stylus holder (30) has first surface (30F1) and second surfaces (30F2) which are inclined with one another at an angle between 0° to 90°. A side surface of the stylus holder (30) is indicated by the reference (30S). The first surface (30F1) is inclined, and the bore (30B) is formed on the inclined surface. The bore may be circular, elliptical or of any desired shape to confirm with the shape of the stylus. The first surface (30F1) is inclined up to a depth along the width of the holder (30) so as to enable easy assembly / dis-assembling or to provide access for the fastener to be positioned within the mounting hole (37) and the bore is provided with an axial gap such that the mounted fastener head end is not in contact with the stylus when placed inside the bore i.e., the head end is outwards width of top portion (301A) of the bore (30B). The depth of the inclined first surface (30F1) from the top is defined by a bottom most point of the inclined first surface (30F1) abutting on the second surface (30F2), said bottom most point on the second surface (30F2) is below the mounting hole (37).
[0035] Figure 3B illustrates a side view of the stylus holder (30) of the present embodiment. Referring Figure 2 and Figure 3B the stylus holder (30) has a side surface (30S) with a mounting hole (36) to fasten a bracket (50) by means of fastener (33). One or more washers (34, 35) may be provided between the fastener (33) and the bracket (50) to form a firm and secure connection between the bracket (50) connected to the tether (40), and the stylus holder (30). Such a secure connection prevents accidental loss or separation of the stylus from the proximity of the electronic device (10) even if the stylus (40) is abruptly dropped.
[0036] Figure 3C, Figure 3D and Figure 3E respectively illustrate a front view, a back view and a top view of the stylus holder (30) of the present embodiment. Reference is now made to Figure 2, Figures 3C-3E. The base (12) of the electronic device (10) is provided with holes (13, 14). These holes (13, 14) may be formed either during a molding process of the base (12) or may be formed by tapping the surface of the base (12). The stylus holder (30) of the present embodiment includes the mounting hole (37) and (38) are provided at the first surface (30F1) and the second surface (30F2) to fasten the stylus holder (30) to the holes (13, 14) provided at a front surface of the base (12) by means of fasteners (31, 32). The plurality of mounting holes (37, 38) are collinear to plurality of holes (13, 14) located on a front surface of the base (12) for enabling coupling of the stylus (30) to the base (12) via fasteners (31, 32).
[0037] Figure 3F refers to a cross section view taken along the line F-F of Figure 3C. The stylus holder (30) has a bore (30B) extending vertically from the first surface (30F1) to length of said bore (30B) is more than half length of the stylus holder (30). The bore (30B) is configured to house the stylus (40) when the stylus (40) is not in use. The bore (30B) has top portion (301A) of the bore (30B) has a width larger than a bottom portion (301B) of the bore (30B) for a coupling mechanism of the stylus (20) and the stylus holder (30). In the present advantageous embodiment, the bottom portion (301B) of the bore (30B) has a coupling unit with an internal thread (39), a diameter of the stylus (20) is smaller than a diameter of bore (30B) for coupling the stylus (20) to the stylus holder (30).
[0038] However, in certain other implementations, the bore (30B) may not be provided with any internal threading.
[0039] It will be appreciated that the stylus holder (30) may be of different shapes and the mounting of the stylus holder (30) to the base (12) and mounting of the bracket (50) to the stylus holder (30) may be done in a variety of ways. The stylus holder (30) may be made from different materials such as, but not limited to, plastic, metal, alloys, ceramics, or the like and produced by machining, 3D printing, metal forming or any other manufacturing method. In the exemplary embodiment described above, the stylus system of the present invention is applied to a military grade (MIL) electronic device. However, it will be appreciated that the stylus system described herein is not necessarily limited to MIL grade electronic devices, but instead may be employed in any industrial electronic device configured with a stylus as an input device.
[0040] Figure 4 depicts an isometric view of the stylus (20) connected to the tether (40) according to the present embodiment. Figure 5 illustrates an exploded isometric view of the stylus (20) of the present embodiment. Referring to Figures 4 and 5, the stylus (20) is comprised of a shank / spindle (21) which is typically cylindrical in shape. The stylus (20) has a shank (21) with a first tapped hole (211) at a first end of the shank (21), and a second tapped hole (212) at a second end of the shank (21).
[0041] The second end or the bottom end of the shank (21) is connected to a stylus tip (22) and the first end or the top end of the shank (21) is connected to an end cap (23). The stylus tip (22) converges to a fine tip from the bottom end of the shank (21). The end cap (23) of the present embodiment includes a through hole (231) and an external thread (232). The stylus (20) having an end cap (23) with a through hole (231) through which the tether (40, 40A) is inserted and coupled, and an external thread (232) is threaded / for coupling for coupling the second tapped hole (212) along with a ring (24) to the shank (21).
[0042] The end cap (23) is assembled to the shank (21) after knotting the tether (40) to the end cap (23). Instead of knotting, the tether (40) can also be fixed and prevented to escape out of from the end cap (23) by any other methods such as, but not limited to using an adhesive or heat. The external thread (232) of the end cap (23) makes it simple and easy to assemble the end cap (23) with the shank (21) at the second end or the top end of the shank (21).
[0043] In the present embodiment, a portion of the shank (21), particularly the bottom portion or the portion of the shank (21) proximate to the tip (22) is provided with a plurality of external threads (25) abutting the first tapped hole (211) at a bottom surface of the shank (21), the external threads (25) configured for coupling with the internal thread (39) while rotating the shank (21) inside the bore (30B) in a clockwise direction and for uncoupling the shank (21) in an anti-clockwise direction. The shank (21) has a diameter that is smaller than or equal to the diameter of the bore (30B) of the stylus holder (30). Preferably, the diameter of the shank (21) at the stylus (20) is smaller than the diameter of the bore (30B) at the stylus holder (30) to engage and disengage the shank (21) within the bore (30B).
[0044] It will be appreciated that, in alternate embodiments, the stylus shank (21) may have a different shape, as long as it is can be sufficiently inserted into the bore (30B) and secured firmly in the bore (30B). The stylus shank (21) may be made from different materials such as, but not limited to, plastic, metal, alloys, ceramics, or the like and produced by machining, 3D printing, metal forming or any other manufacturing method.
[0045] In the present embodiment, the shank (21) with an external thread (25) at the bottom portion being threaded with an internal thread (39) at the bottom portion (301B) of the bore (30B) while rotating the shank (21) inside the bore (30B) in one direction and unthreaded when the shank (21) inside the bore (30B) is rotated in the opposite direction makes up the coupling mechanism of the stylus (20) and the stylus holder (30).
[0046] Figure 6 depicts the assembly of the stylus tip (22) according to the present embodiment. The stylus tip (22) comprises a generally conical shaped housing (221), a manipulator surface (222) and a stud (223). In the present embodiment, the stylus (20) having the stylus tip (22) with the conical shaped housing (221) fixed with a manipulator surface (222) which is configured to contact the display screen (15), and a stud (223) is coupled to the conical shaped housing (221) and to the first tapped hole (211) at the first end of the shank (21).
[0047] The stylus tip (22) may be manufactured by using vacuum casting or injection molding or insert molding or any appropriate manufacturing method. The stud (223) may have external threads for ease of assembly into the housing (221) which may comprise internal threading. Alternately the assembly of the stud (223) and the housing (221) may also be carried out by insert molding or brazing or any other suitable method. The stylus tip (22) is then assembled to the first tapped hole (211) at the first end of the shank (21). The assembly method of the stylus parts described in the foregoing helps in simplifying and easing the manufacturing of the stylus.
[0048] Figure 7 shows the assembly of the tether (40) with the bracket (50) and the end cap (23) of the stylus (20). In the present embodiment, a tether (40) is configured to connect the stylus (20) to the stylus holder (30) or to the base (12).The tether (40) having a first end (41) inserted into the through hole (231) of the end cap (23) and coupled, and a second end (42) inserted into a slot hole (52) shown in (figure 8) provided in the bracket (50) and coupled. The tether (40) is coupled by means of knot which is covered by a sleeve. The sleeve may be heat shrunk onto the knots.
[0049] The tether (40) of the present embodiment may be made of a flexible material. The length of the tether (40) may be adjustable so as to allow a user to conveniently adjust the length of the tether (40) as required. In an exemplary embodiment, the tether is made from at least one material selected from nylon, steel, tin plated copper and metal matrix composites. However, the material of the tether is not limited thereto.
[0050] Figure 8 depicts the bracket (50) according to the present embodiment. The bracket (50) has a slot hole (52) for inserting and restricting the tether (40) and a hole (51) for fastening the bracket (50) to the stylus holder (30) or to the base (12) of the electronic device (10). Particularly, the hole (51) of the bracket (50) has an axis which aligns with the holes of the washers (34, 35) and the shank of the fastener (33) (Refer Figure 2 and Figure 8).
[0051] [Second Exemplary and/or Preferable Embodiment]
[0052] Figure 9 illustrates the stylus system (100A) of the second exemplary and/or preferable embodiment of the invention. The stylus system (100A) of the second exemplary and/or preferable embodiment is similar to the stylus system (100) of the first exemplary embodiment but differs in the configuration and assembly of the tether and the bracket. Like reference numbers have been used herein below to refer to like elements of the first embodiment.
[0053] Referring to Figure 9, the stylus system (100A) comprises an electronic device (10) which has a mounting provision for the display screen (15) with the electronic module. The electronic module typically includes one or more printed circuit boards (PCBs). The display screen (15) is supported by a base (12). The display screen (15) of the present embodiment is touch sensitive and may be configured as a resistive touch or a capacitive touch type screen. The system (100A) includes a stylus (20) which serves as a user input device for the electronic module. Unless otherwise specified, the term “stylus” referred herein onwards is used to indicate an input device to an electronic device associated with a touch display screen. The stylus (20) can be used to write, draw, or select among choices presented on the touch display screen (15), which forms the majority of the front face of the electronic device (10). The stylus (20) is configured to be held in a stylus holder (30) which is essentially a housing that has a bore (30B). The stylus holder (30) is mounted to the base (12) of the electronic device (10). The stylus (20) and the stylus holder (30) of the present embodiment have the same configuration as that of the stylus and the stylus holder of the first exemplary and/or preferable embodiment. A tether (40A) is provided to hold the stylus (20) attached to the electronic device (10) and prevent loss or separation of the stylus (20) from the proximity of the electronic device (10). First end (41A) of the tether (40A) is connected to the stylus (20) and second end (42A) of the tether (40A) is connected to a bracket (50A). The configuration of bracket (50A) is similar to that of the bracket (50). The bracket (50A) is mounted to the base (12) at a side surface of the electronic device (10) by means of a fastener (53A). The bracket (50, 50A) connects a tether (40, 40A) to the stylus (20) at a first end and to the base (12) or to the stylus holder (30) at a second end.
[0054] Figure 10 shows the assembly of tether (40A) with the bracket (50A) and an end cap (23) of the stylus (20). In the present embodiment, a tether (40A) is configured to connect the stylus (20) to the base (12).The tether (40A) having a first end (41A) inserted into the through hole (231) of the end cap (23) and coupled, and a second end (42A) inserted into a slot hole (52) shown in (figure 8) provided in the bracket (50A) and coupled. The tether (40A) is coupled by means of knot which is covered by a sleeve. The sleeve may be heat shrunk onto the knot.
[0055] The tether (40A) of the present embodiment may be made of a flexible material. The length of the tether (40A) may be adjustable so as to allow a user to conveniently adjust the length of the tether (40A) as required. In an exemplary embodiment, the tether is made from at least one material selected from nylon, steel, tin plated copper and metal matrix composites. However, the material of the tether is not limited thereto.
[0056] As described in the foregoing, the present invention provides a tether for attaching the stylus to the stylus holder to prevent the accidental loss of the stylus and to prevent the stylus from accidental drop. Further, the present invention provides a fastening arrangement that can be used for rigid holding of the stylus, the stylus holder, and the tether. In addition, the assembly method of the tether to the stylus has been described.
[0057] Embodiments of the present disclosure, in comparison to similar concepts that do not include one or more of the features disclosed herein, overcome mechanical limitations, decrease weight, increase heat transfer efficiency and may yield other advantages recognizable by a person skilled in the art.
[0058] Many modifications and alterations may be made without departing from the basic spirit of the present invention. These alternatives can be suitably selected depending upon the particular application or in consideration of any number of factors associated with the operation of the system. Accordingly, it will be appreciated by those skilled in the art that the invention may be practiced other than what has been specifically described herein.
,CLAIMS:
1. A stylus system (100) for an electronic device (10), said stylus system (100) comprising:
a stylus (20) configured to communicate with a display screen (15) for transmitting an input to the electronic device (10); and
a stylus holder (30) having:
a plurality of mounting holes (37, 38) in a horizontal direction at a first surface (30F1) and a second surface (30F2) of a front portion of the stylus holder (30), for assembling the stylus holder (30) on a base (12) of the electronic device (10), and
a bore (30B) extending vertically from the first surface (30F1) towards a bottom end of the stylus holder (30) for holding and coupling the stylus (20) to the stylus holder (30).

2. The stylus system (100) as claimed in claim 1, wherein length of said bore (30B) is more than half length of the stylus holder (30) and a top portion (301A) of the bore (30B) has a width larger than a bottom portion (301B) of the bore (30B).

3. The stylus system (100) as claimed in claim 1 or 2, wherein the bottom portion (301B) of the bore (30B) has a coupling unit with an internal thread (39), a diameter of the stylus (20) is smaller than a diameter of bore (30B) for coupling the stylus (20) to the stylus holder (30).
4. The stylus system (100) as claimed in anyone of the preceding claims 1-3, wherein the first surface (30F1) and second surface (30F2) of the stylus holder (30) are inclined with each another at an angle ranging between 0° to 90°, said inclined first surface (30F1) enables mounting of fastener within the mounting hole (37).

5. The stylus system (100) as claimed in anyone of the preceding claims 1-4, wherein the stylus holder (30) has a side surface (30S) with a mounting hole (36) for fastening a bracket (50, 50A) via a fastener (33, 53A), said bracket (50, 50A) connects a tether (40, 40A) to the stylus (20) at a first end and to the base (12) or to the stylus holder (30) at a second end.

6. The stylus system (100) as claimed in anyone of the preceding claims 1-5, wherein the plurality of mounting holes (37, 38) are collinear to plurality of holes (13, 14) located on a front surface of the base (12) for enabling coupling of the stylus (30) to the base (12) via fasteners (31, 32).

7. The stylus system (100) as claimed in anyone of the preceding claims 1-6, wherein the stylus (20) has:
a shank (21) with a first tapped hole (211) at a first end of the shank (21), and a second tapped hole (212) at a second end of the shank (21),
a plurality of external threads (25) abutting the first tapped hole (211) at a bottom surface of the shank (21), the external threads (25) configured for coupling with the internal thread (39) while rotating the shank (21) inside the bore (30B) in a clockwise direction and for uncoupling the shank (21) in an anti-clockwise direction,
an end cap (23) with a through hole (231) for coupling the tether (40, 40A) and an external thread (232) for coupling the second tapped hole (212) along with a ring (24) to the shank (21), and
a stylus tip (22) with a conical shaped housing (221), a manipulator surface (222) configured to contact the display screen (15) fixed at said tip (22) of the conical shaped housing (221), and a stud (223) coupled within conical shaped housing (221) for coupling with the first tapped hole (211) of the shank (21).

8. The stylus system (100) as claimed in anyone of the preceding claims 1-7, wherein the bracket (50, 50A) has a slot hole (52) for inserting and restricting the tether (40, 40A) and a hole (51) for fastening the bracket (50, 50A) to the stylus holder (30) or to the base (12).

9. The stylus system (100) as claimed in anyone of the preceding claims 1-8, wherein a depth of the inclined first surface (30F1) is defined by a bottom most point of the inclined first surface (30F1) abutting on the second surface (30F2), said bottom most point on the second surface (30F2) is below the mounting hole (37).