CN102111479A - Device for identifying text input movement locus and direction of mobile phone - Google Patents
Device for identifying text input movement locus and direction of mobile phone Download PDFInfo
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- CN102111479A CN102111479A CN2009102006603A CN200910200660A CN102111479A CN 102111479 A CN102111479 A CN 102111479A CN 2009102006603 A CN2009102006603 A CN 2009102006603A CN 200910200660 A CN200910200660 A CN 200910200660A CN 102111479 A CN102111479 A CN 102111479A
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Abstract
The invention relates to a device for identifying the text input movement locus and direction of a mobile phone. The device comprises a triaxial acceleration sensor, a triaxial compass chip, a memory and a processor, wherein the triaxial acceleration sensor, the triaxial compass chip and the memory are all connected with the processor. Compared with the prior art, by adopting the device provided by the invention, the crowd incapable of using pinyin, stroke and other input methods while capable of writing and painting can cushily use the mobile phone. The device achieves the effect that the mobile phone can serve as a pen for writing and painting in the air, and the written characters and paints can be input into the mobile phone to send to relatives and friends in a short message or a multimedia message.
Description
Technical field
The present invention relates to mobile phone component, particularly relate to a kind of movement locus and direction recognition device that is used for the input of mobile phone literal.
Background technology
At present, increasing electronic product is all worn 3 axle acceleration sensors, finishes some very functions of hommization, as test driving speed, mobile phone turn-to-mute, pedometer, roly-poly or the like, extensively gets consumer reception.
In addition, 3 geomagnetic sensors also can provide more intimate function to the user, as compass functional, navigation of electronic map etc.;
In fact, 3 geomagnetic sensors and 3 axle acceleration sensors combine and use, and can obtain more, more humane application.
Summary of the invention
Technical problem to be solved by this invention is exactly to provide a kind of movement locus and direction recognition device that is used for the input of mobile phone literal for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of movement locus and direction recognition device that is used for the input of mobile phone literal, it is characterized in that, comprise 3-axis acceleration sensor, three compass chips, memory and processors, described 3-axis acceleration sensor, three compass chips and memory all are connected with processor.
Described 3-axis acceleration sensor and three compass chips all are connected with processor by the I2C bus.
Described processor adopting mobile phone baseband processor.
Described 3-axis acceleration sensor adopts the MMA7660 transducer of freescale company.
Described three compass chips adopt the ASAHIKASEI AK8973 of company chip.
Described memory adopts the sram memory of mobile phone.
Compared with prior art, the present invention makes the crowd that can not use input methods such as phonetic and stroke, as long as can write, draw a picture, can easily use mobile phone; The effect that reaches is: make pen, aloft write and make picture with mobile phone, and font, the picture of being write is input in the mobile phone, can send to relatives and friends in the mode of note or multimedia message.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of movement locus and direction recognition device that is used for the input of mobile phone literal, comprise 3-axis acceleration sensor 1, three compass chips 2, memory 3 and processors 4, described 3-axis acceleration sensor 1, three compass chips 2 and memory 3 all are connected with processor 4.
Described 3-axis acceleration sensor and three compass chips all are connected with processor by the I2C bus; Described processor adopting mobile phone baseband processor; Described 3-axis acceleration sensor adopts the MMA7660 transducer of freescale company; Described three compass chips adopt the ASAHIKASEI AK8973 of company chip; Described memory adopts the sram memory of mobile phone.
The present invention is based on the 3 axle acceleration sensor MMA7660 and the three compass chips AK8973 of ASAHI KASEI company of freescale company, realized the record of movement locus and the sensing that direction changes respectively, and the function of direction indication and navigation of electronic map.
On the circuit, MMA7660 communicates by letter with baseband processor by the I2C bus with AK8973, main cpu carries out initialization and order control to acceleration transducer and compass chip, when the user utilize menu open short message editing swagger input function the time, cpu opens the measuring ability of the X/Y/Z of MMA7660 by I2C, because the situation difference of shaking in the process that the adept machine of hand is aloft waved, the misoperation that the degree that is easy to generate is different, in order to improve precision, chip supports sample each second 120/64/32/16/8 time, here select 120 times the highest samplings for use, sample 3 axial numerical value (analog quantity being converted to digital quantity) respectively by ADC, utilize the method for array to deposit mobile phone EMS memory SRAM in the sampled value in 5 seconds (because the zero-time that mobile phone is waved can't be determined, here the sampling time of our each character or picture was the cycle with 5 seconds), each like this data that sample are converted into Chinese character or letter by the character of software, in character repertoire, search the most close several Chinese characters or letter, do selection for the user, after the user has selected accurately character, wait for 2～3 seconds, enter the next sampling period;
When the user utilizes menu to enter compass functional, cpu controls AK8973 by I2C and reset signal equally, detect the direction of earth south poles magnetic force by the magnetometric sensor of three directions of X/Y/Z, the same with the principle of common compass, after the magnetometric sensor of AK8973 detects the magnetic force of the earth, by 3 axial transducers, through the big conversion that reaches ADC of prevention, with current detection to value return to baseband processor, software is by the value of conversion, correspond to different directions, indicate the current N utmost point at last, thereby realized compass functional.
Claims (6)
1. one kind is used for movement locus and the direction recognition device that the mobile phone literal is imported, it is characterized in that, comprise 3-axis acceleration sensor, three compass chips, memory and processors, described 3-axis acceleration sensor, three compass chips and memory all are connected with processor.
2. a kind of movement locus and direction recognition device that is used for the input of mobile phone literal according to claim 1 is characterized in that described 3-axis acceleration sensor and three compass chips all are connected with processor by the I2C bus.
3. a kind of movement locus and direction recognition device that is used for the input of mobile phone literal according to claim 2 is characterized in that described processor adopting mobile phone baseband processor.
4. according to claim 1 or 3 described a kind of movement locus and direction recognition devices that are used for the input of mobile phone literal, it is characterized in that described 3-axis acceleration sensor adopts the MMA7660 transducer of freescale company.
5. a kind of movement locus and direction recognition device that is used for the input of mobile phone literal according to claim 4 is characterized in that described three compass chips adopt the ASAHIKASEI AK8973 of company chip.
6. a kind of movement locus and direction recognition device that is used for the input of mobile phone literal according to claim 5 is characterized in that described memory adopts the sram memory of mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102006603A CN102111479A (en) | 2009-12-24 | 2009-12-24 | Device for identifying text input movement locus and direction of mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102006603A CN102111479A (en) | 2009-12-24 | 2009-12-24 | Device for identifying text input movement locus and direction of mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102111479A true CN102111479A (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102006603A Pending CN102111479A (en) | 2009-12-24 | 2009-12-24 | Device for identifying text input movement locus and direction of mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102111479A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607539A (en) * | 2013-11-21 | 2014-02-26 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN103871276A (en) * | 2012-12-10 | 2014-06-18 | 中国电信股份有限公司 | Display method, display system and writing terminal for information written on electronic board |
| CN106125954A (en) * | 2016-06-13 | 2016-11-16 | 北京小米移动软件有限公司 | Input method based on terminal movement locus and device |
| WO2017156685A1 (en) * | 2016-03-14 | 2017-09-21 | 华为技术有限公司 | Information input method for terminal, and terminal |
-
2009
- 2009-12-24 CN CN2009102006603A patent/CN102111479A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871276A (en) * | 2012-12-10 | 2014-06-18 | 中国电信股份有限公司 | Display method, display system and writing terminal for information written on electronic board |
| CN103607539A (en) * | 2013-11-21 | 2014-02-26 | 联想(北京)有限公司 | Information processing method and electronic device |
| WO2017156685A1 (en) * | 2016-03-14 | 2017-09-21 | 华为技术有限公司 | Information input method for terminal, and terminal |
| CN107534700A (en) * | 2016-03-14 | 2018-01-02 | 华为技术有限公司 | A kind of data inputting method and terminal for terminal |
| CN107534700B (en) * | 2016-03-14 | 2021-02-09 | 华为技术有限公司 | Information input method for terminal and terminal |
| CN106125954A (en) * | 2016-06-13 | 2016-11-16 | 北京小米移动软件有限公司 | Input method based on terminal movement locus and device |
| CN106125954B (en) * | 2016-06-13 | 2018-07-20 | 北京小米移动软件有限公司 | Input method based on terminal movement locus and device |
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Application publication date: 20110629 |