TWI687205B - Input device and controlling method - Google Patents

Abstract

An input device and a controlling method are provided. The input device includes: a light sensor and a processor coupled to the light sensor. The light sensor receives a light signal corresponding to a heart rate and transforms the light signal into a waveform. The processor receives the waveform and identify a Q wave, an R wave and an S wave in the waveform. When an amplitude corresponding to the R wave is greater than a threshold, the processor transmits a sensitivity control signal to a sensitivity controller to set the sensitivity of the input device as a first sensitivity.

Description

Input device and control method

The invention relates to an input device and a control method, and in particular to an input device and a control method that can change the function of the input device according to physiological signals.

With the advancement of technology and the need for the convenience of heart rate detection, photoplethysmography (PPG) technology has been used to sense the heart rate of the human body. Although more and more electronic devices begin to integrate with physiological sensors, such as heart rate monitors and other electronic devices, there are no input devices (eg, mouse, trackball, etc.) that are combined with physiological sensors on the market. Therefore, how to combine the physiological sensor with the input device to produce useful functions is a goal that those skilled in the art should devote themselves to.

The invention provides an input device and a control method, which can change the function of the input device according to physiological signals.

The present invention provides an input device including: a light sensor; and a processor coupled to the light sensor. The light sensor receives the optical signal corresponding to the heart rate and sends the optical signal The number is converted into a waveform. The processor receives the waveform and recognizes the Q, R, and S waves in the waveform. When the amplitude of the corresponding R wave is greater than the threshold, the processor transmits a sensitivity control signal to the sensitivity controller to set the sensitivity of the input device to the first sensitivity.

In an embodiment of the present invention, when the amplitude of the corresponding R wave is not greater than the threshold, the processor transmits a sensitivity control signal to the sensitivity controller to set the sensitivity of the input device to the second sensitivity, where the second sensitivity is less than the first Sensitivity.

In an embodiment of the invention, the input device further includes a storage element, and the storage element stores the first sensitivity and the second sensitivity.

In an embodiment of the present invention, the input device further includes a light source controller. When the amplitude of the corresponding R wave is greater than the threshold, the processor transmits a light source control signal to the light source controller to set the light source of the input device to the first light emission mode.

In an embodiment of the invention, when the amplitude of the corresponding R wave is not greater than the threshold, the processor transmits a light source control signal to the light source controller to set the light source of the input device to the second light emitting mode.

In an embodiment of the present invention, the input device further includes a storage element, and the storage element stores the first lighting mode and the second lighting mode.

The invention proposes a control method, which is suitable for an input device. The input device includes a light sensor and a processor coupled to the light sensor. The control method includes: receiving the optical signal corresponding to the heart rate through the optical sensor and converting the optical signal into a waveform. The processor receives the waveform and recognizes the Q, R, and S waves in the waveform. When the amplitude of the corresponding R wave is greater than the threshold, the processor sends a sensitivity control signal to the The sensitivity controller sets the sensitivity of the input device to the first sensitivity.

In an embodiment of the present invention, when the amplitude of the corresponding R wave is not greater than the threshold, the processor transmits a sensitivity control signal to the sensitivity controller to set the sensitivity of the input device to the second sensitivity, where the second sensitivity is less than the first Sensitivity.

In an embodiment of the invention, the input device further includes a storage element, and the storage element stores the first sensitivity and the second sensitivity.

In an embodiment of the present invention, the input device further includes a light source controller. When the amplitude of the corresponding R wave is greater than the threshold, the processor transmits a light source control signal to the light source controller to set the light source of the input device to the first light emission mode.

In an embodiment of the invention, when the amplitude of the corresponding R wave is not greater than the threshold, the processor transmits a light source control signal to the light source controller to set the light source of the input device to the second light emitting mode.

In an embodiment of the present invention, the input device further includes a storage element, and the storage element stores the first lighting mode and the second lighting mode.

Based on the above, the input device and the control method of the present invention can convert the optical signal corresponding to the heart rate into a waveform diagram through the light sensor, and then recognize the Q wave, R wave, and S wave in the waveform diagram. When the amplitude of the R wave is greater than the threshold value, the sensitivity of the input device is set to the first sensitivity. When the amplitude of the R wave is not greater than the threshold value, the sensitivity of the input device is set to a second sensitivity smaller than the first sensitivity.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

100: light sensor

110: light emitting diode

120: Photodiode

130: finger

200: input device

210: Left mouse button

220: Right mouse button

300: input device

310: Light sensor

320: processor

330: Sensitivity controller

340: Sensitivity element

350: storage element

360: light source controller

370: light source

380: storage element

410: amplitude

420: baseline

S601~S603: Steps of control method

FIG. 1 is a schematic diagram of a light sensor according to an embodiment of the invention.

2 is a schematic diagram of an input device according to an embodiment of the invention.

3 is a block diagram of an input device according to an embodiment of the invention.

4 is a waveform diagram corresponding to a user's heart rate according to an embodiment of the invention.

5 is a waveform diagram corresponding to a user's heart rate according to another embodiment of the invention.

6 is a flowchart of a control method according to an embodiment of the invention.

FIG. 1 is a schematic diagram of a light sensor according to an embodiment of the invention.

Please refer to FIG. 1. An optical sensor 100 according to an embodiment of the present invention includes a light emitting diode 110 and a photodiode 120. The light-emitting diode 110 is, for example, an infrared emitter. The light sensor 110 can illuminate the skin of the finger 130 through the light of the light emitting diode 110 to measure the amount of light transmitted or reflected to the photodiode 120 to detect the volume change caused by the pulse pressure. In one embodiment, the photo sensor 100 is a light volume change tracing (PPG) sensor.

2 is a schematic diagram of an input device according to an embodiment of the invention.

Please refer to FIG. 2. An input device 200 according to an embodiment of the present invention is, for example, a mouse, and the light sensor 100 may be disposed under the left mouse button 210 and/or under the right mouse button 220. It is worth noting that the light sensor 100 needs to be placed in direct contact with the user's finger or placed under the light-transmitting element of the left mouse button 210 and/or right mouse button 220 Fang allows light to pass directly through your fingers. Although not shown in the figure, the light sensor 100 can also be disposed on the inside of the mouse corresponding to the position where the thumb is placed. Although the input device 200 is a mouse in this embodiment, the invention is not limited to this. In another embodiment, the input device may also be a trackball or any peripheral input device with adjustable resolution (Dot Per Inch, DPI), and the light sensor 100 may be disposed at a position where the input device contacts the finger.

3 is a block diagram of an input device according to an embodiment of the invention.

3, an input device 300 according to an embodiment of the present invention includes a light sensor 310 and a processor 320 coupled to the light sensor 310. The photo sensor 310 is, for example, a photoplethysmography (PPG) sensor. The processor 320 is, for example, a microprocessor control unit (Microprocessor Control Unit, MCU). The light sensor 310 can receive an optical signal (for example, an optical volume description signal) corresponding to the user's heart rate and convert the optical signal into a waveform diagram. The processor 320 can receive the waveform and identify the Q wave, R wave, and S wave in the waveform corresponding to a heartbeat, as shown in FIG. 4. Although not shown in FIG. 4, the waveform corresponding to one heartbeat also includes P wave and T wave. In FIG. 4, the horizontal axis represents time and the vertical axis represents amplitude, and the unit of amplitude may be microvolts (μV).

When the amplitude 410 of the corresponding R wave is greater than the reference line 420 (as shown in FIG. 4), the processor 320 transmits a sensitivity control signal to the sensitivity controller 330 to instruct the sensitivity element 340 to set the sensitivity of the input device 300 to the first sensitivity. When the amplitude 410 of the corresponding R wave is not greater than the reference line 420 (as shown in FIG. 5), the processor 320 transmits a sensitivity control signal to the sensitivity controller 330 to instruct the sensitivity element 340 to output The sensitivity of the input device 300 is set to a second sensitivity that is less than the first sensitivity. For example, the first sensitivity may be 7200 DPI and the second sensitivity may be 400 DPI. The first sensitivity and the second sensitivity may respectively correspond to a concentration mode and a relaxation mode of the user using the input device 300. Using the lower DPI in the relaxation mode can meet the user's needs, but in the focus mode, naturally higher DPI is needed to meet the user's needs. In an embodiment, the data of the first sensitivity and the second sensitivity may be stored in the storage element 350, and the storage element 350 may also store a vendor identification code (Vendor ID, VID) and a product identification code (Product ID, PID) Information such as the string name. The storage device 350 is, for example, an electronically erasable rewritable read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM) or other similar devices.

In one embodiment, the input device 300 further includes a light source controller 360. The light source controller 360 is, for example, a red, green, and blue (RGB) controller and can control the light emitted by the light source 370, such as an RGB Light Emitting Diode (RGB LED). When the amplitude 410 of the corresponding R wave is greater than the reference line 420, the processor 320 transmits a light source control signal to the 360 light source controller to set the light source 370 of the input device 300 to the first light emitting mode. When the amplitude 410 of the corresponding R wave is not greater than the reference line 420, the processor 320 transmits a light source control signal to the light source controller 360 to set the light source 370 of the input device 300 to the second light emitting mode. The storage element 380 may store the first light emitting mode and the second light emitting mode. The first light emitting mode and the second light emitting mode may be different red, green, and blue light emitting diodes for light display effects. In an embodiment, the data of the first lighting mode and the second lighting mode may be stored in the storage element 380, and the The storage element 380 can also store information such as the supplier identification code and the string name of the product identification code. The storage device 380 is, for example, an electronically erasable rewritable read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM) or other similar devices.

6 is a flowchart of a control method according to an embodiment of the invention.

Referring to FIG. 6, in step S601, the optical sensor receives the optical signal corresponding to the heart rate and converts the optical signal into a waveform diagram.

In step S602, the processor receives the waveform and recognizes the Q wave, R wave, and S wave in the waveform.

In step S603, when the amplitude of the corresponding R wave is greater than the threshold, the processor transmits the sensitivity control signal to the sensitivity controller to set the sensitivity of the input device to the first sensitivity.

In summary, the input device and control method of the present invention can convert the optical signal corresponding to the user's heart rate into a waveform diagram through the light sensor, and then recognize the Q wave, R wave, and S wave in the waveform diagram. When the amplitude of the R wave is greater than the threshold value, the sensitivity of the input device is set to the first sensitivity. When the amplitude of the R wave is not greater than the threshold value, the sensitivity of the input device is set to a second sensitivity smaller than the first sensitivity. In addition, when the amplitude of the R wave is greater than the threshold value, the light source of the input device may be set to the first light emitting mode. When the amplitude of the R wave is not greater than the threshold value, the light source of the input device may be set to the second lighting mode.

Although the present invention has been disclosed as above by the embodiments, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field of the art will not deviate from the present invention. Within the spirit and scope, some changes and modifications can be made, so the scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

300: input device

310: Light sensor

320: processor

330: Sensitivity controller

340: Sensitivity element

350: storage element

360: light source controller

370: light source

380: storage element

Claims (12)

An input device includes: a light sensor; and a processor coupled to the light sensor, wherein the light sensor receives an optical signal corresponding to a heart rate and converts the optical signal into a waveform, The processor receives the waveform graph and recognizes a Q wave, an R wave and an S wave in the waveform graph. When an amplitude corresponding to the R wave is greater than a threshold, the processor transmits a sensitivity control signal to a sensitivity The controller sets the sensitivity of the input device to a first sensitivity. The input device as described in item 1 of the patent application scope, wherein when the amplitude corresponding to the R wave is not greater than the threshold, the processor transmits the sensitivity control signal to the sensitivity controller to set the sensitivity of the input device Is a second sensitivity, where the second sensitivity is less than the first sensitivity. The input device as described in item 2 of the scope of the patent application further includes a storage element that stores the first sensitivity and the second sensitivity. The input device as described in item 1 of the patent application scope further includes a light source controller. When the amplitude corresponding to the R wave is greater than the threshold value, the processor transmits a light source control signal to the light source controller to control the light source. A light source of the input device is set to a first lighting mode. The input device as described in item 4 of the patent application scope, wherein when the amplitude corresponding to the R wave is not greater than the threshold value, the processor transmits the light source control signal to the light source controller to use the light source of the input device Set to a second lighting mode. The input device as described in item 5 of the patent application scope further includes a storage element that stores the first lighting pattern and the second lighting pattern. A control method is applicable to an input device including an optical sensor and a processor coupled to the optical sensor. The control method includes: receiving a corresponding heart rate by the optical sensor An optical signal and convert the optical signal into a waveform; the processor receives the waveform and recognizes a Q wave, an R wave, and an S wave in the waveform; and when the amplitude corresponding to the R wave is greater than At a threshold, the processor sends a sensitivity control signal to a sensitivity controller to set the sensitivity of the input device to a first sensitivity. The control method as described in item 7 of the patent application scope, wherein when the amplitude corresponding to the R wave is not greater than the threshold value, the processor transmits the sensitivity control signal to the sensitivity controller to set the sensitivity of the input device Is a second sensitivity, where the second sensitivity is less than the first sensitivity. The control method as described in item 8 of the patent application range, wherein the input device further includes a storage element that stores the first sensitivity and the second sensitivity. The control method as described in item 7 of the patent application scope, wherein the input device further includes a light source controller, and when the amplitude corresponding to the R wave is greater than the threshold value, the processor transmits a light source control signal to the light source control The device sets a light source of the input device to a first light emitting mode. The control method as described in item 10 of the patent application range, wherein when the amplitude corresponding to the R wave is not greater than the threshold, the processor transmits the light source control signal to the light source controller to input the light source of the input device Set to a second lighting mode. The control method as recited in item 11 of the patent application range, wherein the input device further includes a storage element that stores the first lighting pattern and the second lighting pattern.

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