CN1041354C

CN1041354C - Wireless computer mouse

Info

Publication number: CN1041354C
Application number: CN93100683A
Authority: CN
Inventors: 王永华
Original assignee: YINGZHEN ENTERPRISES CO Ltd
Current assignee: YINGZHEN ENTERPRISES CO Ltd
Priority date: 1992-08-22
Filing date: 1993-01-19
Publication date: 1998-12-23
Anticipated expiration: 2013-01-19
Also published as: CN1090403A

Abstract

The present invention relates to a regenerative wireless electrical transmission computer mouse which is provided with a regenerative transmitting circuit. He input end of the transmitting circuit is connected with a power circuit of a serial output circuit of a central processing unit of a transmitter in order to receive a serial pulse signal output by the serial output circuit, and the serial pulse signal is transmitted in an electro-magnetic wave mode; moreover, a receiver in the mouse is also provided with a regenerative receiving circuit in order to receive an electro-magnetic wave transmitted by the regenerative transmitting circuit; the electro-magnetic wave becomes a digit string type pulse signal after being processed; the pulse signal is sent to the computer via an RS-232 serial interface push circuit and a PS/II serial interface to be directly processed after being transmitted to and decoded by the central processing unit of the receiver.

Description

Wireless computer mouse

The present invention relates to a kind of computer mouse, particularly relate to a kind of wireless computer mouse.

Because science and technology is maked rapid progress, mouse has also entered the world of wireless transmission, this kind design solves in the past wire mouse and is subjected between the yoke of connected cables mutually between computer and mouse, inconvenience that is caused and cable produce the damage that its fracture is caused because of long-term swing, though old infrared ray transmits the wireless type mouse and has solved above-mentioned problem, also produces two problems that wait to solve:

1. the restriction of directivity: infrared ray transmits the restriction that is subjected to directivity, can not have any article to hinder its transfer path on the table.

2. the consumption of power supply is big: the consumption that infrared ray transmits power supply is big, must use with the rechargeable battery exchange, and need charge once average every day, and repeatedly after the charging, rechargeable battery can shorten service time, causes and uses inconvenience greatly.

Fundamental purpose of the present invention is to be to provide a kind of article that are not subjected to hinder, the wireless computer mouse that any direction position all can be used.

Secondary objective of the present invention is the wireless electric wire fax of the regenerative sending computer mouse that is to provide a kind of very power saving.

For reaching above-mentioned purpose, wireless computer mouse of the present invention mainly is to transmit in the electromagnetic wave mode, makes it not hindered by article, and any direction position all can be used; The present invention adopts the regenerative radio to transmit, very power saving, and design special burst inquiry input power-saving circuit and pulse output power-saving circuit on control integrated circuit IC, so as long as two 3A batteries, just can use 3-6 month, and the 3A battery all can be bought in any shop, very convenient, on design transmits, use consuming frequency, meet the F.C.C regulation, and transmitting range is below 2 meters, the unlikely electromagnetic interference (EMI) that causes, four consumption channels are provided simultaneously, so many identical mouses use together, also unlikely causing interferes with each other.

Below by most preferred embodiment and accompanying drawing wireless computer mouse of the present invention is elaborated, in the accompanying drawing:

Fig. 1 is the block scheme of wireless computer mouse of the present invention;

Fig. 2 is a wireless computer mouse of the present invention, wherein controls the detailed circuit diagram of transmitter.

Fig. 3 is a wireless computer mouse of the present invention, and wherein the detailed circuit diagram of receiver is calculated in MODE control.

See also shown in Figure 1ly, wireless computer mouse of the present invention comprises that mouse control transmitter 1 and MODE control calculates receiver 2; Wherein mouse control transmitter 1 further comprises mouse body and testing circuit 10, and regenerative transmitter 11; And MODE control is calculated receiver 2 and is further comprised retroactive reception device 20, calculating and mode controller 21 and output circuit 22, output circuit 22 line that further links to each other with general computer.Above-mentioned mouse body and testing circuit 10 will detect vector and function button, again with after the signal Processing, transfer to 11 adjustings of regenerative transmitter and will be emitted in the air; After receiving by other end retroactive reception device 20 again, export to computer after transferring to the CPU calculation control.

See also shown in Figure 2 again, it is the detailed circuit schematic of mouse control transmitter 1, wherein the mouse body of mouse control transmitter 1 and testing circuit 10 further include vector decoding detecting element 100, function button element 101, CPU (central processing unit) (CPU) 102 and power circuit 103; At first by vector decoding detecting element 100 (can adopt decoding infrared ray mode or mechanical decoding process) and function button element 101 detected signal being transferred to CPU (central processing unit) 102 handles, include special power saving pulse detection scanning formula processor 104 in the CPU (central processing unit) 102, pulse encoder 105, and serial output circuit 106, time base circuit 107, and low pressure display 108; Wherein special power saving pulse detection scanning formula processor 104 provides the power supply of above-mentioned two set of pieces 100,101, when general user mode be with:

1. the hundreds of subpulses of per second are inquired (Polling) input element, to obtain correct input signal.

When mouse after static one second promptly with the inquiry of the tens of subpulses of per second, and when signal is imported, recover the 1st stage condition.

3. if all do not have input signal and promptly enter per second in continuous 50 seconds with the several pulse interrogation.

4. promptly do not enter per second pulsatile once inquiry (this is called sleep state) if all there was input signal in continuous 50 minutes.

As long as no matter have the signal input all can recover for the 1st stage to obtain correct data in that stage; Because partly is to consume maximum for a long time with detecting element with mouse body than power consumption, so the power saving formula is one of maximum person who has rendered outstanding service of power saving.In addition, the data of above-mentioned special power saving pulse detection scanning formula processor 104 outputs, be to transfer to serial output circuit 106 behind input pulse scrambler 105 codings, this kind pulse code also is one of power saving mode, when exporting, serial pulses is sent to above-mentioned regenerative radiating circuit 11, regenerative radiating circuit 11 mainly comprises transistor Q1 and oscillatory circuit 110, if base stage no pulse input as transistor Q1, then oscillatory circuit 110 is non-oscillating, power consumption hardly, so have only when CPU (central processing unit) 102 has serial pulses output, regenerative radiating circuit 11 just produces the vibration emission, current drain is also arranged, quite power saving, this also is a reason of using the regenerative transmitter why.In addition, still include time base circuit 107 in CPU (central processing unit) 102, it is circumscribed with oscillator OSC to provide CPU (central processing unit) 102 required work fundamental frequency; And low pressure display 108, it is circumscribed with power circuit 103, when the supply voltage of power circuit 103 inputs is lower than setting value, shows driving external LED.To sum up state each power saving mode and circuit, at power circuit 103 partly, the utility model only uses two 3A batteries, can use 3-6 month, and this is one of greatest feature of the utility model design; The utility model adopts the pulse radiation pattern of specific coding, so be difficult for disturbedly, low-power module, 2 meters of coverages are adopted in design simultaneously, can not disturb other articles for use yet, meet F.C.C. (Federal Communications Commission) specification requirement.

See also shown in Figure 3 again, be the detailed circuit schematic that receiver 2 is calculated in above-mentioned MODE control, wherein retroactive reception device 20 further includes first order radio-frequency amplifier 200, second level regeneration oscillatory circuit 201, third level low-pass filter 202, the fourth stage accurate position amplifier 203 and level V TTL (transistor transistor logic) interface circuit 204; At first the high frequency in center high frequency ± 10MHZ (waveform one among the 3rd figure) scope is amplified by first order radio-frequency amplifier 200, after above-mentioned transmitter 1 modulation frequency emits, after amplifying, the first order transfers to second level regeneration oscillatory circuit 201, the oscillation frequency of circuit 201 is the centre frequency of transmitter emission (303,875MHZ or 418MHZ) after adjustment, but circuit 201 is non-oscillating via bias voltage control at ordinary times; After above-mentioned first order radio-frequency amplifier 200 was received centre frequency, second level regeneration oscillatory circuit 201 just can be upset and produce vibration (waveform two).After oscillatory circuit 201 starting of oscillations, transfer to third level low-pass filter 202 with partly filtering of its high frequency (303.875MHZ or 418MHZ), obtaining crest still has the low frequency signal of high frequency remnants (waveform three), transferring to the accurate position of fourth stage amplifier 203 again will all make it saturated at the signal (waveform four) more than the DC position standard, obtain anti-phase pure low frequency signal (waveform five), then, transfer to TTL numerical digit signal that level V TTL interface circuit 204 transfers signal to anti-phase standard 0-5V again and transfer to the CPU (central processing unit) 210 of aforementioned calculation and mode controller 21, the waveform of this moment with the transmitter modulation before the striking resemblances of low frequency serial pulse signal.Not starting of oscillation when retroactive reception device 20 characteristics are that its regeneration oscillatory circuit 201 is flat has only when receiving centre frequency and just moves, and very power saving also is to use the maximum main cause of this circuit design.

After the serial pulses of above-mentioned level V TTL interface circuit 204 outputs is CPU (central processing unit) 210 receptions of aforementioned calculation and mode controller 21, after at first serial pulses being decoded by the tandem demoder 215 of CPU (central processing unit) 210, originally after vector and function button signal transferred to vector calculation unit 216 and is calculated totally, transfer to RS-232 serial line interface 217 and PS/II serial interface 218 and separate into various serial modes coding, select output mode to be connected to the RS-232 serial line interface via MODE control circuit 220 and promote circuit 211 or PS/II serial line interface and promote circuit 212 and give computer with signal and handle; Another pattern is directly serial signal to be transferred to parallel mode at serial decode device 215 to transfer to bus mouse (BUS MOUSE) parallel interface 219 and directly export to it and promote circuit 213 and transfer to computer and directly handle.In addition, it is power-supply controller of electric 214 that MODE control calculating receiver 21 has another design feature, because the use electric current of full machine has only 6-7mA,, do not need additional power source so power supply can directly be taken from the signal wire of RS-232 interface 217 or PS/II interface 218 or bus mouse interface 219+5V end.

Wireless computer mouse of the present invention reaches following various advantages really:

1. transmit with the regenerative wireless system, do not have directionality.

2. special power saving mode, mouse body are only used two 3A batteries (general battery), namely Can use 3-6 month (general normal use).

3. use dirty main consumption channel of 303.875MHZ418MHZ, meet F.C. C. reach F.T.C. (Federal Trade Commission) design, the present invention more Can extend to other second mate's channel, totally four channels can use, even many mouses use simultaneously, also Can not interfere with each other.

4. the present invention launches in 2 meters of the coverages, and uses the special burst coded system, does not disturb other consumer appliances product.

5. receiver of the present invention does not need external power supply.

In sum, wireless computer mouse of the present invention can reach the application target of expection by means of its disclosed technology really.

Claims

1. wireless computer mouse is characterized in that: it comprises that mouse control transmitter, MODE control calculates receiver; The mouse control transmitter includes the vector decoding detecting element, function button element, CPU (central processing unit), and power circuit; Also include special power saving pulse detection scanning formula processor in the CPU (central processing unit) wherein, pulse encoder, serial output circuit, time base circuit, and low pressure display; MODE control is calculated receiver and is included CPU (central processing unit), and the RS-232 serial line interface promotes circuit, and the PS/II serial line interface promotes circuit, and bus mouse promotes circuit, and power-supply controller of electric; CPU (central processing unit) wherein also includes the serial decode device, vector calculation unit, PS-232 serial, PS/II interface, and bus mouse parallel interface; It is characterized in that:

The mouse control transmitter also includes the regenerative transmitting circuit, the input end of this circuit arrangement is connected in the CPU (central processing unit) serial output circuit of control transmitter and the power circuit of control transmitter, and it is received from the serial pulse signal of serial output circuit output, transmit in the electromagnetic wave mode again, wherein serial pulse signal is to be detected after the signal of vector decoding detecting element and function button element input by its CPU (central processing unit), convert data-signal to via the special power saving pulse detection scanning formula processor in it, behind the input pulse encoder serial coding, transfer to the output of serial output circuit again; MODE control is calculated receiver and is also included the retroactive reception circuit arrangement, and the receiving circuit device comprises first order radio-frequency amplifier, second level regeneration oscillatory circuit, third level low-pass filter, the accurate position of fourth stage amplifier, and level V TTL interface circuit; Receive the electromagnetic wave that the regenerative transmitting circuit emits by first order radio-frequency amplifier, after transferring to second level regeneration oscillatory circuit adjustment generation vibration after the first order amplification, transfer to third level low-pass filter again with the partly filtering of its high frequency, transferring to the accurate position of fourth stage amplifier more all makes it saturated signal more than the standard of DC position, obtain low frequency signal, transferring to level V TTL interface circuit again is after the digital type serial pulse signal with conversion of signals, send the CPU (central processing unit) of receiver to, through in the serial decode device of processing unit with after the serial pulses decoding, originally vector and function button signal are transferred to vector calculation unit to be calculated after the accumulative total, separate into various serial mode codings by RS-232 serial line interface and PS/II serial line interface, select output mode to be connected to RS-232 serial line interface promotion circuit via control circuit again signal is transferred to the computer processing; The serial decode device also can directly transfer serial signal to parallel mode and transfer to the bus mouse parallel interface and directly export to it and promote circuit and transfer to computer and directly handle.

2. wireless computer mouse as claimed in claim 1, it is characterized in that: receive the electromagnetic wave that the regenerative transmitting circuit emits by first order radio-frequency amplifier, is after the digital type serial pulse signal by level V TTL interface circuit with conversion of signals, send the CPU (central processing unit) of receiver to, after the serial decode device of CPU (central processing unit) is decoded serial pulses, originally vector and function button signal are transferred to vector calculation unit to be calculated after the accumulative total, separate into various serial mode codings by RS-232 serial line interface and PS/II serial line interface, select output mode to be connected to PS/II serial line interface promotion circuit via control circuit again signal is transferred to the computer processing.

3. wireless computer mouse as claimed in claim 1 is characterized in that: the required power supply of power-supply controller of electric is the signal wire that directly is taken from the RS/-232 interface.

4. wireless computer mouse as claimed in claim 1 is characterized in that: the required power supply of power-supply controller of electric is the power end that directly is taken from the PS/II interface.

5. wireless computer mouse as claimed in claim 1 is characterized in that: the required power supply of power-supply controller of electric is the power end that directly is taken from the bus mouse interface.