JP2001202196A - Mouse pad and mouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mouse pad to be used for realizing a mouse for which no battery is basically required to be built in. SOLUTION: In this mouse pad to smoothen transfer of the mouse as a pointing device, a magnetic field type antenna for power transmission to transmit operating power of the mouse to the mouse is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouse and a mouse pad which are widely used as a pointing device such as a computer.

[0002]

2. Description of the Related Art A mouse, which is widely used as a pointing device such as a computer, has a structure in which the mouse is connected to a computer by a cord, so that the cord sometimes obstructs operation. To eliminate this obstacle,
A cordless mouse has been devised and partially used.

In a cordless mouse, the operation information of the mouse is transmitted using infrared rays (a so-called remote controller used for a television or the like) or weak electric waves. However, since the cordless mouse has a built-in operation power supply (primary battery or secondary battery) for the mouse, it inevitably increases in weight and requires maintenance of the battery. In addition, phenomena such as malfunction due to a decrease in the battery voltage and a remarkable decrease in the communication distance are also feared.

[0004]

Although the convenience of a cordless mouse has been recognized by many users, it is inevitable to increase the weight of the battery and maintain the battery, and malfunctions and notifications due to a decrease in the battery voltage. Phenomena such as a remarkable decrease in distance have also been a factor that impairs its usefulness.

[0005] It is an object of the present invention to provide a mouse pad which is used to realize a mouse which basically does not need to incorporate a battery.

Another object of the present invention is to provide a mouse which basically does not need to incorporate a battery.

[0007]

SUMMARY OF THE INVENTION A mouse pad according to the present invention is a mouse pad for facilitating movement of a mouse as a pointing device, and is a magnetic field type antenna for transmitting electric power for transmitting operation power of the mouse to the mouse. It is characterized by having.

The mouse pad preferably includes a circuit for supplying power to the power transmitting magnetic field type antenna.

It is preferable that the mouse pad includes an operation information receiving circuit for receiving operation information from a mouse.

The operation information receiving circuit includes, for example, a magnetic field type antenna for receiving operation information for receiving operation information from a mouse.

The operation information receiving circuit includes, for example, an operation information receiving magnetic field antenna for receiving operation information from a mouse, and a demodulation circuit for demodulating a signal received by the operation information receiving magnetic field antenna.

The magnetic field type antenna for receiving operation information is provided, for example, on the surface of a mouse pad. The magnetic field antenna for receiving operation information is provided, for example, on a surface other than the surface of the mouse pad.

The operation information transmission circuit provided in the mouse for transmitting operation information uses, for example, a frequency band of 500 KHz or less. In this case, the operation information transmitting circuit uses, for example, AM modulation as a modulation method.

An operation information transmitting circuit provided in the mouse for transmitting operation information uses, for example, a frequency band of 4 MHz or more. In this case, the operation information transmitting circuit uses, for example, FM modulation as a modulation method.

The operation information receiving circuit includes, for example, an infrared light receiver for receiving operation information from a mouse and a demodulation circuit for demodulating a signal received by the infrared light receiver.

A mouse according to the present invention is characterized in that a mouse used on a mouse pad is provided with a power receiving magnetic field type antenna for receiving power required for operation of the mouse from the mouse pad.

The mouse is provided with a power generation circuit for generating power of each part in the mouse based on the power received by the power receiving magnetic field type antenna.

The mouse preferably has an operation information transmitting circuit for transmitting operation information of the mouse to the mouse pad.

The operation information transmitting circuit includes, for example, a magnetic field antenna for transmitting operation information for transmitting operation information of a mouse to a mouse pad.

The operation information transmitting circuit is, for example, 500K
Use a frequency band below Hz. In this case, the operation information transmitting circuit uses, for example, AM modulation as a modulation method.

The operation information transmitting circuit is, for example, 4 MHz
The above frequency band is used. In this case, the operation information transmitting circuit uses, for example, FM modulation as a modulation method.

The operation information transmission circuit includes, for example, an infrared light emitter for transmitting operation information of a mouse to a mouse pad.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION

[1] Description of the outline of the invention

According to the present invention, unlike a conventional cordless mouse, which employs a non-contact power transmission method, unlike an infrared method or a weak radio wave method used for transmitting mouse operation information, a battery is basically provided. It is a mouse that does not need to be embedded.

In general, regardless of a wired mouse or a cordless mouse, the mouse is often used on a dedicated plate called a mouse pad made to operate the mouse smoothly. The present invention focuses on the fact that the mouse and the mouse pad are used integrally, a circuit for performing non-contact power transmission in the mouse pad, and operation information transmitted from the cordless mouse and transmitted to the computer. A receiving circuit is provided, and a power generation circuit that rectifies the wirelessly transmitted power to drive the internal circuit, a mouse original circuit, and an operation information transmission circuit that sends mouse operation information to the mouse pad side are provided in the mouse. It is a thing.

The non-contact power transmission circuit provided in the mouse pad generates, for example, an unmodulated wave having a transmission frequency of 256 kHz and a transmission power of 100 mW, and is continuously transmitted from the loop magnetic antenna.

The mouse placed on the mouse pad has two
It is equipped with a small loop magnetic field type antenna that resonates at 56 kHz, and efficiently transfers magnetic field power. The magnetic field power component, which is an alternating current, is converted into a direct current by the rectifier circuit and the voltage is stabilized, and then becomes a driving power source for each circuit in the mouse.

The six states of the forward movement amount, the backward movement amount, the rightward movement amount, the leftward movement amount, the presence or absence of the left button click, and the right or left button click, which are the operation information of the mouse, are converted into a data stream by the data encoder. After being modulated by the received signal, it is transmitted to the mouse pad.

The data stream information from the mouse received by the mouse pad is appropriately amplified and waveform-shaped, and then encoded by the data encoder. The demodulated data is sent to the computer via a signal line.

In the present invention, it is assumed that the power required for the function of the mouse pad is provided by the power supplied from the computer. However, depending on the type of the computer, it may be assumed that a sufficient power cannot be supplied. Therefore, another power supply support such as an AC adapter is considered as an auxiliary power supply.

[2] Description of Embodiment

Hereinafter, embodiments will be described with reference to the drawings.

FIG. 1 shows the configuration of a mouse pad, and FIG. 2 shows the configuration of a cordless mouse.

The mouse pad (10) includes a transmitting unit (contactless power transmission circuit) (20) and a receiving unit (operation information receiving circuit).
(30), an antenna unit (40) and a power supply unit (50).

The transmitting section (20) includes a cordless mouse (6)
0) has a function for transmitting power. 256kHz
A z generator (21) generates a rectangular power transmission frequency, converts the power transmission frequency into a sine wave by a waveform shaper (22), amplifies the power to a required power by a power amplifier (23), and transmits the magnetic field type antenna for transmission. (Power transmission magnetic field type antenna) (41) and radiate into space. In this embodiment, the radiation power at this time was set to about 100 mW.

The receiving unit (30) is a cordless mouse (6)
It has a function of demodulating the mouse movement information signal radiated from 0) and transferring it to the computer (200). A magnetic field antenna for reception (magnetic field antenna for operation information reception) (42) has 64 kHz radiated from a cordless mouse (60).
In addition to the components, a strong 256 kHz component radiated from the transmitting magnetic field type antenna (41) is also generated at the same time, so that a frequency component higher than the 64 kHz component to be received by the low-pass filter (31), particularly a 256 kHz component, is sufficiently generated. Attenuate, 64
Only the target frequency is amplified by the kHz amplifier (32).

Since the signal of this frequency radiated from the cordless mouse (60) has been subjected to ASK modulation, it is demodulated by the demodulator (33), the waveform is shaped by the waveform shaper (34), and the data is decoded by the data decoder (35). ) To convert the data and send it to the computer (200) via a signal line. Power supply (5
0) supplies the electric power supplied from the computer (200) to each part in the mouse pad (10). However, depending on the type of the computer (200), an AC adapter is used as a standby power supply on the assumption that sufficient electric power cannot be supplied. (30
0) can be used.

The cordless mouse (60) includes a power generation unit (power generation circuit) (80), a transmission unit (operation information transmission circuit) (90), an antenna unit (70), and a mouse operation detection unit (100). .

The power generation unit (80) has a mouse pad (1).
0) has a function of converting a high-frequency AC magnetic field radiated from 0) into DC power. The rectifier (81) converts the 256 kHz AC magnetic field received by the receiving magnetic field type antenna (power receiving magnetic field type antenna) (71) into DC. However, the generated voltage fluctuates. After stabilization, a voltage is supplied to each circuit.

25 received by the receiving magnetic field type antenna (71)
A part of 6 kHz becomes 64 kHz in the 1/4 frequency divider (91), and is used as a return transmission frequency. Since the frequency divider output is a rectangular wave, the 64 kHz waveform shaper (9
In 2), it is converted into a sine wave and guided to the modulator (94). Various operation signals detected by the mouse operation detection unit (100) are converted into modulation signals by a data encoder (93), and ASK modulation is performed by a modulator (94). This modulated 6
The 4 kHz signal is amplified by the power amplifier (95) and transmitted to the transmission magnetic field type antenna (magnetic field type antenna for transmitting operation information) (72).
It is sent to the mouse pad (10).

In the above embodiment, the mouse pad (1
0) is 256 kHz, and the return frequency from the cordless mouse (60) is 64 kHz.
However, the present invention is not limited to this frequency, and it is needless to say that other valid frequencies can be selected.

As the modulation method used for the transmitting section 90 of the mouse, various modulation methods such as AM modulation and FM modulation can be used.

In the above embodiment, it is assumed that no battery is built in the cordless mouse. However, depending on the positional relationship between the mouse and the mouse pad, there is a possibility that the power required by the mouse cannot be supplied sufficiently. Therefore,
A small-capacity secondary battery is built in the mouse, and in normal use, the secondary battery is charged by the power supplied from the mouse pad, and at the end of the mouse pad, a part of the power to operate the mouse May be supplied from the secondary battery. Even in this case, maintenance and replacement of the secondary battery is not required. Note that an electric double layer large capacity capacitor may be used instead of the secondary battery.

In the above embodiment, the operation information of the mouse is transmitted from the transmitting magnetic field type antenna 72 provided in the mouse.
Transmitted from the mouse, and received by the receiving magnetic field type antenna 42 provided on the mouse pad,
A mouse may be provided with an infrared light emitter, and a mouse pad may be provided with an infrared light receiver, and the operation information of the mouse may be transmitted from the infrared light emitter provided on the mouse and received by the infrared light receiver provided on the mouse pad. Good.

According to the above embodiment, the power to be operated by the cordless mouse is transmitted wirelessly by the wireless power transmission circuit (transmitter 20) provided on the mouse pad.
A system without a battery in the cordless mouse can be realized. For this reason, compared to the conventional cordless mouse, it has both reduced weight and the need for semi-permanent maintenance, and has high convenience such as no malfunction due to a decrease in battery voltage and no significant decrease in communication distance. have.

[0047]

According to the present invention, it is possible to obtain a mouse pad used for realizing a mouse which basically does not need to incorporate a battery. Further, according to the present invention, it is possible to obtain a mouse which basically does not need to incorporate a battery.

In a conventional cordless mouse employing an infrared system or a radio wave system, the number of mice that can be used in a certain space is limited. In the present invention, there are no such drawbacks, and there is no limit to the number of mice that can be used in a certain space.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a mouse pad.

FIG. 2 is a block diagram showing a configuration of a cordless mouse.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Mouse pad 20 Transmitting part 30 Receiving part 40 Antenna part 50 Power supply part 21 256 kHz generator 22 Waveform shaper 23 Power amplifier 31 Reduction filter 32 64 kHz amplifier 33 Demodulator 34 Waveform shaper 35 Data decoder 41 Transmission magnetic field type antenna 42 Magnetic field antenna for reception 60 Cordless mouse 80 Power generation unit 90 Transmission unit 70 Antenna unit 100 Mouse operation detection unit 81 Rectification unit 82 Voltage stabilizer 91 1/4 frequency divider 92 64 kHz waveform shaper 93 Data encoder 94 Modulator 95 Power Amplifier 71 Magnetic field antenna for reception 72 Magnetic field antenna for transmission

Claims (21)

[Claims] 1. A mouse pad for facilitating movement of a mouse as a pointing device, comprising a power transmitting magnetic field type antenna for transmitting operating power of the mouse to the mouse. . 2. The mouse pad according to claim 1, further comprising a circuit for supplying power to the power transmitting magnetic field type antenna. 3. The mouse pad according to claim 1, further comprising an operation information receiving circuit for receiving operation information from a mouse. 4. The mouse pad according to claim 3, wherein the operation information receiving circuit includes an operation information receiving magnetic field type antenna for receiving operation information from a mouse. 5. The operation information receiving circuit includes an operation information receiving magnetic field antenna for receiving operation information from a mouse, and a demodulation circuit for demodulating a signal received by the operation information receiving magnetic field antenna. The mouse pad according to claim 3, wherein: 6. A magnetic field antenna for receiving operation information is provided on a surface of a mouse pad.
Mouse pad as described in. 7. The mouse pad according to claim 4, wherein the magnetic field type antenna for receiving operation information is provided on a surface other than the surface of the mouse pad. 8. The mouse according to claim 4, wherein the operation information transmitting circuit provided in the mouse for transmitting operation information uses a frequency band of 500 KHz or less. pad. 9. The operation information transmitting circuit includes:
9. The mouse pad according to claim 8, wherein AM modulation is used. 10. The mouse according to claim 4, wherein the operation information transmitting circuit provided in the mouse for transmitting operation information uses a frequency band of 4 MHz or more. pad. 11. The operation information transmitting circuit uses FM modulation as a modulation method.
Mouse pad as described in. 12. The operation information receiving circuit according to claim 3, further comprising an infrared receiver for receiving operation information from a mouse and a demodulation circuit for demodulating a signal received by the infrared receiver. Mouse pad as described. 13. A mouse used on a mouse pad, comprising a magnetic field antenna for power reception for receiving power required for operation of the mouse from the mouse pad. 14. A power generation circuit for generating electric power of each part in a mouse based on electric power received by a power receiving magnetic field type antenna.
The mouse according to 1. 15. The mouse according to claim 13, further comprising an operation information transmission circuit for transmitting operation information of the mouse to a mouse pad. 16. The mouse according to claim 15, wherein the operation information transmitting circuit includes a magnetic field antenna for transmitting operation information for transmitting operation information of the mouse to a mouse pad. 17. The mouse according to claim 16, wherein the operation information transmission circuit uses a frequency band of 500 KHz or less. 18. The mouse according to claim 17, wherein the operation information transmitting circuit uses AM modulation as a modulation method. 19. The mouse according to claim 16, wherein the operation information transmitting circuit uses a frequency band of 4 MHz or more. 20. The mouse according to claim 19, wherein the operation information transmitting circuit uses FM modulation as a modulation method. 21. The mouse according to claim 15, wherein the operation information transmission circuit includes an infrared light emitter for transmitting operation information of the mouse to a mouse pad.