CN203706147U - Mouse application structure - Google Patents
Mouse application structure Download PDFInfo
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- CN203706147U CN203706147U CN201320500105.4U CN201320500105U CN203706147U CN 203706147 U CN203706147 U CN 203706147U CN 201320500105 U CN201320500105 U CN 201320500105U CN 203706147 U CN203706147 U CN 203706147U
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- digital
- mouse
- analog
- conversion circuit
- transmitting device
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Abstract
The utility model discloses a house application structure and belongs to the technical field of electronics. The mouse application structure comprises a photosensitive chip and a control chip, wherein the photosensitive chip sends a signal to the control chip. By the use of the mouse application structure, a digital microprocessor DSP is free of influence of limitations of CMOS photosensitive block technology, so not only application cost is reduced, but processing speed of the digital microprocessor DSP is improved and further mouse performance is enhanced.
Description
Technical field
The utility model relates to electronic technology field, particularly a kind of mouse applications structure.
Background technology
Referring to Fig. 1, traditional optical mouse structure is made up of light sensation chip and control chip, but its light sensation chip has comprised CMOS sensitization piece, tri-parts of analog to digital conversion circuit ADC and digital microprocessor DSP.In the situation that pixel remains unchanged, CMOS sensitization piece area reducing and reduce to some extent with process not substantially, and digital microprocessor DSP circuit is digital circuit, its area, processing speed and power consumption all can be because the variation of technique changes, and make digital microprocessor DSP be subject to the constraint of CMOS sensitization piece technique.
The data of transmitting between two chips of conventional mouse are the displacement signal that digital microprocessor DSP processed, and data volume is less, therefore carries out data transmission by low speed serial ports.
Digital micro-processing DSP part that the sensitive chip of conventional mouse is generally integrated, in the situation that chip area is fixing, this will inevitably cause reducing of chip CMOS illuminant module area, has reduced to a certain extent the pixel of mouse, thereby has reduced the precision of mouse.In addition, make traditional mouse induction chip even if adopt advanced technique, although can improve the processing speed of digital microprocessor DSP, reduce the chip area of digital microprocessor DSP part, but due to its CMOS sensitization piece not with technique raising reduce area or improving performance, make induction chip cost performance decline.For example, in the time adopting respectively 0.5um cheaply and expensive two kinds of different techniques of 0.18um to make the induction chip of conventional mouse, in the time that pixel immobilizes, under two kinds of techniques, be substantially constant because the singularity of CMOS sensitization piece technique makes its shared area and performance, and area, processing speed and the power consumption of digital microprocessor DSP partial circuit under two kinds of techniques differ widely.If adopt 0.5um technique cheaply, cannot improve the performance of DSP circuit, and then affect the performance of whole mouse; If adopt the 0.18um technique of higher cost, although improved the performance of DSP partial circuit, performance and the area of CMOS sensitization piece can not change, and expensive technique declines the overall price/performance ratio of chip.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of mouse applications structure and makes digital microprocessor DSP not be subject to the constraint of CMOS sensitization piece technique, not only reduce application cost, and improved the processing speed of digital microprocessor DSP, and then improve the performance of mouse.
For solving the problems of the technologies described above, the utility model provides a kind of mouse applications structure, for the mouse of PC; Comprise transmitting device, sensitive chip and control chip; Described transmitting device, sensitive chip and control chip are placed in described mouse; Described sensitive chip comprises CMOS sensitization piece and analog to digital conversion circuit ADC; Described CMOS sensitization piece receives the view data that described mouse bottom reflection is returned, and described view data is converted to analog electrical signal; Described analog electrical signal is passed to analog-digital conversion circuit as described ADC by described CMOS sensitization piece; Described analog electrical signal is converted to digital signal by analog-digital conversion circuit as described; Described control chip comprises digital microprocessor DSP and microcontroller processor MCU; Described digital signal transfers is given described digital microprocessor DSP by analog-digital conversion circuit as described ADC; Described digital microprocessor DSP processes described digital signal; Described digital microprocessor will be processed described digital signal transfers later to described microcontroller; Described microcontroller passes to described PC by described digital signal by described transmitting device.
Further, described transmitting device comprises radio transmitter, and described microcontroller is given described PC by described radio transmitter by described digital signal transfers.
Further, described transmitting device includes line interface circuit, and described microcontroller is given described PC by described wireline interface circuit by described digital signal transfers.
Further, a kind of mouse applications structure of the utility model also comprises High Speed Serial, and described serial ports one end is connected with analog-digital conversion circuit as described ADC, and the other end is connected with described digital microprocessor DSP.
Digital microprocessor DSP is integrated into control chip by a kind of mouse applications structure that the utility model provides, make CMOS sensitization piece not be subject to the constraint of digital microprocessor DSP technique, not only reduce application cost, and improved the processing speed of digital microprocessor DSP, and then improve the performance of mouse.
Accompanying drawing explanation
Fig. 1 is the application principle figure of the mouse applications structure of prior art;
A kind of use that Fig. 2 provides for the utility model embodiment has the application principle figure of the mouse applications structure of line structure;
The application of principle figure of a kind of mouse structure that uses radio transmitter that Fig. 3 provides for the utility model embodiment;
Embodiment
Referring to Fig. 2-3, the utility model embodiment provides a kind of mouse applications structure, comprises transmitting device, sensitive chip and control chip.Wherein, transmitting device, sensitive chip and control chip are placed in mouse.Sensitive chip comprises CMOS sensitization piece and analog to digital conversion circuit ADC.CMOS sensitization piece receives the reflection ray of the image of the mouse bottom being sent by optical lens, and picture signal is passed to analog to digital conversion circuit ADC.Picture signal is converted to digital signal by analog to digital conversion circuit ADC.What be transferred to control chip due to sensitive chip is the data after analog to digital conversion, does not pass through digital microprocessor DSP, and data volume is larger, so need between sensitive chip and control chip to carry out data transmission by two line serial ports of high-speed low-power-consumption.Control chip comprises digital microprocessor DSP and microcontroller processor MCU.Analog to digital conversion circuit ADC passes to digital microprocessor DSP by digital signal by two line serial ports of high-speed low-power-consumption.The digital signal that digital microprocessor DSP is responsible for analog to digital conversion circuit ADC to transmit is carried out Treatment Analysis, by the digital signal analysis that on these reflection mouse bottom diagram pictures, characteristic point position changes being determined to change in displacement direction and the displacement of mouse.Microcontroller processor MCU is responsible for coordinating the work of each components and parts in optical mouse.The change in displacement direction of mouse after determining and the signal of displacement are passed to microcontroller processor MCU by digital microprocessor DSP.Transmitting device is radio transmitter, and microcontroller processor MCU flows to PC by signal by radio transmitter.Transmitting device is wireline interface circuit, and microcontroller processor MCU flows to PC by signal by wireline interface circuit.
In a kind of mouse applications structure that uses the utility model embodiment to provide, mouse action, CMOS sensitization piece receives the reflection ray of the image of the mouse bottom being sent by optical lens, and picture signal is passed to analog to digital conversion circuit ADC.Picture signal is converted to digital signal by analog to digital conversion circuit ADC.Analog to digital conversion circuit ADC passes to digital microprocessor DSP by digital signal by two line serial ports of high-speed low-power-consumption.The digital signal that digital microprocessor DSP is responsible for analog to digital conversion circuit ADC to transmit is carried out Treatment Analysis, by the digital signal analysis that on these reflection mouse bottom diagram pictures, characteristic point position changes being determined to change in displacement direction and the displacement of mouse, complete the location to cursor.Positioning signal is passed to microcontroller processor MCU.Transmitting device is radio transmitter, and microcontroller processor MCU passes to PC by RF or bluetooth by data.Transmitting device is wireline interface circuit, and microcontroller processor MCU passes to PC by PS2 or USB by data.PC makes corresponding mouse pointer displacement action.
A kind of mouse applications structure that the utility model embodiment provides, digital microprocessor DSP is integrated in control chip, adopts 0.18um technique to make, and has improved the processing speed of numerical value microprocessor DSP, has reduced the area of digital microprocessor DSP; The CMOS sensitization piece of sensitive chip and analog to digital conversion circuit ADC are not subject to the impact of digital microprocessor DSP technique, need not reduce area, have improved mouse pixel and precision, adopt 0.5um technique to make, and have reduced cost; The performance of mouse is improved.
Digital microprocessor DSP is integrated into control chip by a kind of mouse applications structure that the utility model provides, make CMOS sensitization piece not be subject to the constraint of digital microprocessor DSP technique, not only reduce application cost, and improved the processing speed of digital microprocessor DSP, and then improve the performance of mouse.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a mouse applications structure, for the mouse of PC; It is characterized in that, comprising: transmitting device, sensitive chip and control chip; Described transmitting device, sensitive chip and control chip are placed in described mouse; Described sensitive chip comprises CMOS sensitization piece and analog to digital conversion circuit ADC; Described CMOS sensitization piece receives the view data that described mouse bottom reflection is returned, and described view data is converted to analog electrical signal; Described analog electrical signal is passed to analog-digital conversion circuit as described ADC by described CMOS sensitization piece; Described analog electrical signal is converted to digital signal by analog-digital conversion circuit as described; Described control chip comprises digital microprocessor DSP and microcontroller processor MCU; Described digital signal transfers is given described digital microprocessor DSP by analog-digital conversion circuit as described ADC; Described digital microprocessor DSP processes described digital signal; Described digital microprocessor will be processed described digital signal transfers later to described microcontroller; Described microcontroller passes to described PC by described digital signal by described transmitting device.
2. application structure according to claim 1, is characterized in that: described transmitting device comprises radio transmitter, and described microcontroller is given described PC by described radio transmitter by described digital signal transfers.
3. application structure according to claim 1, is characterized in that: described transmitting device includes line interface circuit, and described microcontroller is given described PC by described wireline interface circuit by described digital signal transfers.
4. application structure according to claim 1, is characterized in that, described application structure also comprises: High Speed Serial, and described serial ports one end is connected with analog-digital conversion circuit as described ADC, and the other end is connected with described digital microprocessor DSP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500105.4U CN203706147U (en) | 2013-08-15 | 2013-08-15 | Mouse application structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500105.4U CN203706147U (en) | 2013-08-15 | 2013-08-15 | Mouse application structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706147U true CN203706147U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500105.4U Expired - Fee Related CN203706147U (en) | 2013-08-15 | 2013-08-15 | Mouse application structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706147U (en) |
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2013
- 2013-08-15 CN CN201320500105.4U patent/CN203706147U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20210815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |