Input device
By sensing the rotation of the magnetic scroll wheel through an optical module, the problems of high power consumption and difficulty in reducing cost in traditional mice are solved, realizing a low-power and low-cost input device design.
Patent Information
- Application Number
- CN202410858418.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-12-30
AI Technical Summary
Traditional mice use Hall effect sensors to detect scroll wheel rotation, resulting in high power consumption and difficulty in reducing costs.
An optical module is used to sense the rotation of the magnetic roller. The rotation of the magnetic roller is sensed by the optical module to indicate the step value and control the scrolling of the display, replacing the traditional Hall sensor.
This achieves lower power consumption and reduces the cost of input devices.
Smart Images
Figure CN121232984A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to an input device. BACKGROUND
[0002] As a common computer peripheral device, a mouse has become an indispensable electronic device in modern people's life and work. Generally, a mouse will include a scroll wheel to scroll a page through the scroll wheel.
[0003] A conventional mouse senses the rotation of the mouse by using a Hall sensor to scroll a page according to the sensing result. However, since the Hall sensor is used for sensing, it is difficult to effectively reduce the power consumption and cost of the mouse. SUMMARY
[0004] In view of the above, the present invention provides an input device to solve the above problems.
[0005] According to an embodiment of the present invention, an input device includes a base, a magnetic scroll wheel, and an optical module. The magnetic scroll wheel is rotatably disposed on the base. The optical module is disposed on the base, located at one side of the magnetic scroll wheel, and is used to sense the rotation of the magnetic scroll wheel.
[0006] In some embodiments, the optical module includes a first circuit board, an optical sensor disposed on the first circuit board, and a circuit board connector disposed on the first circuit board, wherein the input device further includes a second circuit board disposed on the base, and the circuit board connector is used to electrically connect the first circuit board and the second circuit board.
[0007] In some embodiments, the optical sensor is disposed on one side of the first circuit board, and the circuit board connector is disposed on the other side of the first circuit board.
[0008] In some embodiments, the base has a through hole, and the optical module corresponds to the through hole.
[0009] In some embodiments, further comprising: a plurality of function keys electrically connected to the second circuit board; and a function piece having a predetermined pattern and being detachably disposed on the base; wherein the second circuit board includes a controller, the optical module is located at one side of the function piece, and is further used to capture the function piece to obtain and output an image to the controller.
[0010] In some embodiments, the base has a through hole, and the function piece corresponds to the through hole.
[0011] In some embodiments, the controller sets the functions of the function keys according to the predetermined pattern on the image.
[0012] In some embodiments, the input device further comprises a start key electrically connected to the optical module, the start key being configured to generate a trigger signal in response to an external force, and the optical module being configured to be triggered by the trigger signal to take a picture.
[0013] In some embodiments, the input device further comprises an indicator light electrically connected to the start key, the indicator light being configured to emit light in response to the trigger signal.
[0014] In some embodiments, the input device further comprises a controller configured to divide a rotation angle indicated by the sensing signal generated by the optical module by a predetermined angle to obtain a step value.
[0015] In summary, the input device according to one or more embodiments of the present application has lower power consumption due to the optical module. In addition, compared with a Hall sensor, the optical module can be used to sense the rotation of the magnetic roller, thereby reducing the cost of the input device.
[0016] The above description of the present application and the following description of the embodiments are intended to demonstrate and explain the spirit and principle of the present application, and to provide further explanation of the claims of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 FIG. 1 is a schematic diagram of an input device according to an embodiment of the present application.
[0018] Figure 2 FIG. 2 is a schematic diagram of an input device according to another embodiment of the present application.
[0019] Figure 3 FIG. 3 is a block diagram of an optical module and a circuit board according to an embodiment of the present application.
[0020] Figure 4 FIG. 4 is a flowchart of the operation of an input device according to an embodiment of the present application.
[0021] Figure 5 FIG. 5 is a schematic diagram of an input device according to yet another embodiment of the present application.
[0022] Figure 6 FIG. 6 is a block diagram of an optical module, a circuit board, and a function key according to an embodiment of the present application.
[0023] Figure 7 FIG. 7 is a schematic diagram of a mouse according to an embodiment of the present application.
[0024] Figure 8 FIG. 8 is a circuit diagram of an input device according to an embodiment of the present application.
[0025] BRIEF DESCRIPTION OF DRAWINGS
[0026] 1,2,3,4: input device
[0027] 11,21,31: base
[0028] 211,311: perforation
[0029] 12,22,32: magnetic roller
[0030] 13,23,33,47: optical module
[0031] 231,331: optical sensor
[0032] 232,332: first circuit board
[0033] 233,333: circuit board connector
[0034] 24,34: second circuit board
[0035] 241,341,43: controller
[0036] 35: function
[0037] 36a: first function key
[0038] 36b: second function key
[0039] 36c: third function key
[0040] 36d: fourth function key
[0041] 37: start key
[0042] 38: indicator light
[0043] 40: power source
[0044] 41: first regulator
[0045] 42: second regulator
[0046] 44: oscillator
[0047] 45: first indicator light
[0048] 46: second indicator light
[0049] 48: function key
[0050] 49: mouse sensor
[0051] VCC: input voltage
[0052] S101, S103, S105, S107, S109, S111: step DETAILED DESCRIPTION
[0053] The above and other aspects of the present application will become readily apparent by reference to the detailed description when considered in connection with the accompanying drawings wherein:
[0054] Referring to Figure 1 wherein Figure 1 is a schematic diagram of an input device according to an embodiment of the present application. As shown in Figure 1 , the input device 1 includes a base 11, a magnetic roller 12, and an optical module 13. The input device 1 is, for example, a magnetic roller assembly in a mouse.
[0055] The magnetic roller 12 is rotatably disposed on the base 11. Further, the magnetic roller 12 can include a through hole and a pivot, and the pivot is disposed through the through hole, and the base 11 can include a recess hole, so that the magnetic roller 12 can be rotatably disposed on the base 11 through the pivot. The magnetic roller 12 can provide a click effect, a flick effect, etc. by magnetic force. For example, the magnetic roller 12 and the base 11 can respectively include corresponding magnetic elements, and the magnetic roller 12 can provide the click effect, the flick effect, etc. by the magnetic elements acting on the magnetic elements of the base 11.
[0056] The optical module 13 is disposed on the base 11 at one side of the magnetic roller 12, and can be located outside the base 11, wherein the one side can be an upper side, a lower side, a left side, or a right side of the magnetic roller 12, and is not limited to the one side shown in the figure. The optical module 13 is used to sense the rotation of the magnetic roller 12. The sensing signal generated by the optical module 13 can be used to indicate a step value, thereby controlling the number of scrolling rows of a display picture on a display.
[0057] Referring to Table 1 below, wherein Table 1 shows the power consumption of a Hall sensor and the optical module of the present application.
[0058] Table 1
[0059] Operational state Standby state Hall sensor 1 milliampere (mA) 165 microampere (uA) Optical module 0.27 mA 26 uA
[0060] From Table 1 above, it can be seen that the input device according to one or more embodiments of the present application has lower power consumption in both an operating state and a standby state by the arrangement of the optical module. Moreover, compared with the Hall sensor, the rotation of the magnetic roller is sensed by the optical module, which can reduce the cost of the input device.
[0061] Referring to Figure 2 wherein Figure 2 is a schematic diagram of an input device according to another embodiment of the present application. As shown inFigure 2 As shown, the input device 2 includes a base 21, a magnetic roller 22, and an optical module 23. The magnetic roller 22 of the input device 2 can interact with... Figure 1 The magnetic roller 12 of the input device 1 is the same, so it will not be described in detail here.
[0062] The base 21 may include a perforation 211, and the optical module 23 may correspond to the perforation 211 to sense the rotation of the magnetic roller 22 through the perforation 211. Furthermore, the sensing area of the optical module 23 may correspond to the perforation 211. For example, the projection of the perforation 211 onto the magnetic roller 22 may overlap with at least a portion of the projection of the sensing area of the optical module 23 onto the magnetic roller 22.
[0063] The optical module 23 may include an optical sensor 231, a first circuit board 232, and a circuit board connector 233. The optical sensor 231 and the circuit board connector 233 are disposed on the first circuit board 232. More specifically, the optical sensor 231 is disposed on one side of the first circuit board 232, and the circuit board connector 233 is disposed on the other side of the first circuit board 232. The optical sensor 231 can be electrically connected to the circuit board connector 233 through a through-hole on the first circuit board 232. The optical sensor 231 may face the through-hole 211. Figure 2 The size and shape of the perforation 211 are merely examples and are not intended to limit the invention. The sensing signal generated by the optical sensor 231 can be output to the control element for controlling the number of scrolling rows via the first circuit board 232 and the circuit board connector 233.
[0064] Please refer to this as well. Figure 2 and Figure 3 ,in Figure 3 This is a block diagram illustrating an optical module and circuit board according to an embodiment of the present invention. The optical sensor 231, the first circuit board 232, and the circuit board connector 233 of the optical module 23 are compatible with... Figure 2 The same as shown. Figure 3 As shown, the input device 2 may also include a second circuit board 24. The second circuit board 24 may be disposed on the base 21. For example, the base 21 may also include a base plate (not shown) located under the base 21, and the second circuit board 24 may be disposed on the base plate. The second circuit board 24 is electrically connected to the optical module 23. The circuit board connector 233 can be used to electrically connect the first circuit board 232 and the second circuit board 24.
[0065] The second circuit board 24 may include a controller 241, which may be, for example, a microcontroller. Furthermore, a circuit board connector may also be provided on the second circuit board 24, and the circuit board connector 233 of the optical module 23 may be electrically connected to the circuit board connector of the second circuit board 24 via a connecting cable (e.g., a flexible flat cable).
[0066] The controller 241 can be used to control the number of scrolling lines according to the sensing signal of the optical module 23. Further, the sensing signal generated by the optical sensor 231 can be outputted to the controller 241 of the second circuit board 24 through the first circuit board 232 and the circuit board connector 233, thereby controlling the number of scrolling lines of the display image on the display. Alternatively, the controller 241 can also be arranged on the first circuit board 232, and the controller 241 can obtain the step value according to the sensing signal. Alternatively, another controller can also be arranged on the first circuit board 232 and connected to the controller 241, and the other controller can obtain the step value according to the sensing signal and output the step value to the controller 241.
[0067] For more detailed description of the method of controlling the number of scrolling lines according to the sensing signal generated by the optical sensor 231, please refer to Figures 2 to 4 , wherein Figure 4 is a flow chart of the operation of the input device according to an embodiment of the present application. As shown in Figure 4 , the operation of the input device 2 includes: step S101: resetting the optical sensor; step S103: judging whether the identification information of the optical sensor is correct; when the judgment result of step S103 is "No", step S101 is executed again; when the judgment result of step S103 is "Yes", step S105: initializing the optical sensor is executed; step S107: judging whether the sensing signal generated by the optical sensor is obtained; when the judgment result of step S107 is "No", step S107 is executed again; when the judgment result of step S107 is "Yes", step S109: dividing the rotation angle by the predetermined angle to obtain the step value is executed; and step S111: outputting the step value is executed. Figure 4 The steps shown in may be executed by the controller 241 or other control elements (for example, the other controller arranged on the first circuit board 232) connected to the optical sensor 231. For the purpose of description, the controller 241 is taken as an example in the following description.
[0068] In step S101, the controller 241 can command the optical sensor 231 to reset, so as to restore various parameters (for example, sensitivity, etc.) of the optical sensor 231 to the initial values.
[0069] At step S103, the controller 241 can read the identification information of the optical sensor 231 from the optical sensor 231, and determine whether the identification information of the optical sensor 231 is the same as the pre-stored identification information. The identification information can include serial number, etc. When the identification information of the optical sensor 231 is not the same as the pre-stored identification information, it indicates that the identification information of the optical sensor 231 is incorrect, and the controller 241 can perform step S101 again. On the contrary, when the identification information of the optical sensor 231 is the same as the pre-stored identification information, it indicates that the identification information of the optical sensor 231 is correct, and the controller 241 can perform step S105.
[0070] At step S105, the controller 241 can set the predetermined angle, power saving mechanism, optical sensing value, optical focusing, etc. corresponding to the magnetic roller 22 at the optical sensor 231. The predetermined angle can be dots per inch (DPI), for example, 15 degrees, and the magnetic roller 22 can have 24 equidistant steps, for example.
[0071] At step S107, the controller 241 determines whether the sensing signal from the optical sensor 231 is received. When the controller 241 does not receive the sensing signal from the optical sensor 231, the controller 241 can perform step S107 again (i.e. wait for the sensing signal from the optical sensor 231). On the contrary, when the controller 241 receives the sensing signal from the optical sensor 231, the controller 241 can perform step S109.
[0072] At step S109, the controller 241 divides the rotation angle indicated by the sensing signal by the predetermined angle to obtain the step value. At step S111, the controller 241 can output the step value to the computer to which the input device 2 is connected, so as to control the scrolling line number on the display connected to the computer.
[0073] Please refer to Figure 5 , wherein Figure 5 is a schematic diagram of an input device according to another embodiment of the present application. As shown in Figure 5 , the input device 3 includes a base 31, a magnetic roller 32, and an optical module 33, and the base 31 includes a through hole 311. The base 31, the magnetic roller 32, and the optical module 33 of the input device 3 can be the same as the base 21, the magnetic roller 22, and the optical module 23 of the input device 2 of Figure 2 , and thus are not described herein.
[0074] The input device 3 can further include a functional piece 35 having a predetermined pattern and being detachably arranged on the base 31. In Figure 5In this design, the predetermined shape of the functional component 35 is "A", but this predetermined shape is only an example and is not intended to limit the invention. The functional component 35 can be inserted into the gap between the magnetic roller 32 and the base 31, and is directly opposite the through hole 311. Furthermore, the predetermined shape of the functional component 35 can face the optical module 33.
[0075] Please refer to this as well. Figure 5 and Figure 6 ,in Figure 6 This is a block diagram illustrating an optical module, circuit board, and function keys according to an embodiment of the present invention. The optical module 33 can be connected to... Figure 5 The same as shown. Figure 6 As shown, the input device 3 may also include a second circuit board 34. The second circuit board 34 may be disposed in the mouse and located under the base 31 and on the bottom plate of the mouse. The second circuit board 34 is electrically connected to the optical module 33. The circuit board connector of the optical module 33 can be used to electrically connect the first circuit board of the optical module 33 and the second circuit board 34. The second circuit board 34 may include a controller 341. The implementation of the second circuit board 34 and the controller 341 may be as follows: Figure 3 The second circuit board 24 and controller 241 shown are the same, so they will not be described in detail here.
[0076] like Figure 6 As shown, the input device 3 may further include a first function key 36a and a second function key 36b. The first function key 36a and the second function key 36b are electrically connected to the controller 341 of the second circuit board 34. The first function key 36a and the second function key 36b can be any two of the following: forward key, back key, left key, and right key. It should be specifically noted that... Figure 6 The number of function keys shown is merely an example, and the present invention does not limit the number of function keys on the input device.
[0077] The optical module 33 is located on one side of the functional component 35 and is further used to capture images of the functional component 35 to obtain and output images to the controller 341. The controller 341 is used to set the functions of the first function key 36a and the second function key 36b according to a predetermined pattern on the image. For example, the controller 341 may set a plurality of first preset functions corresponding to the first function key 36a and the second function key 36b in the firmware of the controller 341 to a plurality of second preset functions according to a predetermined pattern. The first preset functions may include the forward scrolling function of the forward key, the backward scrolling function of the back key, the click function of the left key, and the function of displaying the function table of the right key, but the present invention is not limited thereto.
[0078] For example, the first preset function of the first function key 36a is a click function, and the first preset function of the second function key 36b is a menu display function. The controller 341 can set the first function key 36a to a second preset function of opening multimedia and the second function key 36b to a second preset function of opening files according to a predetermined graphic. The above-mentioned second preset functions of opening multimedia and opening files are only examples. The second preset functions may also include functions such as network search, and this invention is not limited thereto.
[0079] In other words, the controller 341 (or the memory accessible by the controller 341) can pre-store the correspondence between multiple graphics and multiple function groups. After receiving the predetermined graphics captured by the optical sensor, the controller 341 can determine which of the multiple graphics matches the predetermined graphics, and use the multiple functions included in the function group corresponding to that graphic as the multiple second preset functions, so as to set the functions of the first function key 36a and the second function key 36b.
[0080] Please refer to this as well. Figures 5 to 7 .like Figure 7 As shown, the input device 3 may also include a third function key 36c and a fourth function key 36d, and the controller 341 may further set the functions of the third function key 36c and the fourth function key 36d according to the predetermined graphic of the function component 35. The details will not be repeated here.
[0081] Furthermore, the input device 3 may also include a start button 37. The start button 37 is electrically connected to the optical module 33 and is used to generate a trigger signal when triggered by an external force. For example, the start button 37 can be triggered by an external force applied by the user to generate a trigger signal and output the trigger signal to the optical module 33 to control the optical module 33's shooting function 35.
[0082] In addition, the input device 3 may also include an indicator light 38. The indicator light 38 may include a light-emitting diode. The indicator light 38 is electrically connected to the start button 37, and the indicator light 38 can be illuminated by a trigger signal output from the start button 37. Accordingly, when the indicator light 38 is illuminated, the user can determine that the optical module 33 has been triggered and has begun taking pictures. Furthermore, Figure 7 The position and size of the start button 37 and indicator light 38 shown are merely examples and are not intended to limit the invention.
[0083] Please refer to Figure 8 ,in Figure 8 This is a circuit diagram of an input device drawn according to an embodiment of the present invention. Figure 8As shown, the input device 4 includes a power source 40, a first regulator 41, a second regulator 42, a controller 43, an oscillator 44, a first indicator light 45, a second indicator light 46, an optical module 47, function keys 48, and a mouse sensor 49. It should be noted that the input device 4 also includes the base and magnetic roller shown in one or more of the above embodiments; however, for ease of explanation, the base and magnetic roller are not shown. Figure 8 middle.
[0084] Power source 40 is electrically connected to first regulator 41 and second regulator 42. First regulator 41 is electrically connected to first indicator light 45, second indicator light 46 and optical module 47. Second regulator 42 is electrically connected to controller 43. Controller 43 is electrically connected to first indicator light 45, second indicator light 46, optical module 47, function key 48 and mouse sensor 49.
[0085] The power source 40 may include a battery or a power line connected to an external power source. The first regulator 41 and the second regulator 42 may be boost converters or buck converters, and can be configured according to the type and voltage of the battery in the power source 40. The second regulator 42 can boost the voltage from the power source 40 to the input voltage VCC and input the input voltage VCC to the controller 43. The controller 43 may be, for example, a... Figure 3 and Figure 6 The controller shown, and the input device 4 may also include, for example, the controller shown. Figure 3 and Figure 6 The controller 43 can be mounted on the second circuit board shown. The oscillator 44 can be a quartz oscillator.
[0086] The first indicator light 45 can be as follows: Figure 7 The indicator light 38 is shown. The second indicator light 46 may include a light-emitting diode for illuminating when the input device 4 receives power input. The function key 48 may be... Figure 7 The input device 4 may have multiple function keys 48, including any of the first function key 36a to the fourth function key 36d. The mouse sensor 49 may include another optical sensor, such as a photoelectric sensor engine, for sensing the displacement of the mouse, i.e., sensing the amount of surface movement, brightness, or performing image recognition, so as to correspondingly present the sensing result of the mouse sensor 49 as the displacement of the cursor.
[0087] It should also be noted that, Figures 5 to 8 The input device shown can also be used with Figure 4 The flowchart shown is for operation.
[0088] In summary, the input device according to one or more embodiments of the present invention can achieve lower power consumption through the arrangement of the optical module. Furthermore, compared to a Hall sensor, sensing the rotation of the magnetic roller through an optical module can reduce the cost of the input device.
Claims
1. An input device, comprising: A base; A magnetic roller is rotatably mounted on the base; and An optical module is mounted on the base, located on one side of the magnetic roller, and is used to sense the rotation of the magnetic roller.
2. The input device of claim 1, wherein the optical module comprises: First circuit board; An optical sensor is disposed on the first circuit board; and A circuit board connector is disposed on the first circuit board. The input device further includes a second circuit board disposed on the base, and the circuit board connector is used to electrically connect the first circuit board and the second circuit board.
3. The input device as claimed in claim 2, wherein the optical sensor is disposed on one side of the first circuit board, and the circuit board connector is disposed on the other side of the first circuit board.
4. The input device of claim 1, wherein the base has a through hole and the optical module corresponds to the through hole.
5. The input device as claimed in claim 2, further comprising: Multiple function keys are electrically connected to the second circuit board; and A functional component having a predetermined shape and detachably mounted on the base; The second circuit board includes a controller, and the optical module is located on one side of the functional component and is further used to capture the functional component to obtain and output an image to the controller.
6. The input device of claim 5, wherein the base has a through hole and the functional element corresponds to the through hole.
7. The input device of claim 5, wherein the controller sets the function keys according to the predetermined graphic on the image.
8. The input device of claim 5, further comprising: A start button, electrically connected to the optical module, is used to generate a trigger signal when activated by an external force. The optical module is triggered by the trigger signal to take pictures.
9. The input device as claimed in claim 8 further includes an indicator light electrically connected to the start button, the indicator light being triggered by the trigger signal to emit light.
10. The input device of claim 1, further comprising a controller configured to divide a rotation angle indicated by a sensing signal generated by the optical module by a predetermined angle to obtain a step value.