CN101893990A - Hand input system for remote controller and method thereof - Google Patents
Hand input system for remote controller and method thereof Download PDFInfo
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- CN101893990A CN101893990A CN 201010211631 CN201010211631A CN101893990A CN 101893990 A CN101893990 A CN 101893990A CN 201010211631 CN201010211631 CN 201010211631 CN 201010211631 A CN201010211631 A CN 201010211631A CN 101893990 A CN101893990 A CN 101893990A
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Abstract
The invention discloses a hand input system for a remote controller. The system comprises a receiving and hand input processing unit, a display processing unit and an acceleration sensing remote controller unit, wherein the acceleration sensing remote controller unit comprises an acceleration sensor circuit, a control MCU circuit connected with the acceleration sensor circuit, a transmission circuit which is connected with the control MCU circuit through a bus or an I/O port and buttons; and when hand input performs, the acceleration sensor is used for detecting the acceleration in axial directions of X, Y and Z when motion of the remote controller is detected, and outputting the acceleration to the control MCU circuit. Through a mode of adding the acceleration sensor on the remote controller, by smartly utilizing strong processor performance of multimedia and network chips of a television and a larger display screen of the television, the system realizes identification and display of hand input on the television by hand input of the acceleration sensing remote controller, is convenient for usage of consumers and has low cost.
Description
Technical field
The invention belongs to the consumption electronic products technology, relate in particular to a kind of hand input system for remote controller and method thereof.
Background technology
The popularizing on televisor along with multimedia and network application had the demand of increasing input on the televisor, as: the input of search search key, network address input, account password input or the like.At present, majority all is to import by the button on the telepilot, and TV remote controller is more loaded down with trivial details on input method, needs by " 0-9 " numerical key repeatedly by coming input alphabet (with the input of mobile phone letter), spelling input method used in the input Chinese character more, and operation is just more loaded down with trivial details.In order to solve the complex operation problem, the minority scheme adopts the mode that increases touch display screen on telepilot to import, import by touch screen hand-writing, again by being wirelessly transmitted to televisor, though this loaded down with trivial details problem of input operation that solved, cost is too high, increases touch-screen, MCU control chip performance also needs to improve to support hand-written application, and these all cause the increase of cost.In addition, the TV operation focus is all on TV screen, and the operation focus of handwriting input need be switched visual focus back and forth during input on the touch-screen of telepilot, cause user's ratio to be easier to fatigue; And the touch-screen of telepilot is smaller, and inconvenient old man uses, thus be necessary to provide a kind of cost low, and the convenient input scheme that uses.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of hand input system for remote controller, and convenient use and cost are low.
The embodiment of the invention is to realize like this, a kind of hand input system for remote controller, comprise and receiving and handwriting input processing unit, display processing unit and acceleration sensing remote control unit, wherein, described acceleration sensing remote control unit comprise acceleration sensor circuit, the control MCU circuit that is connected with acceleration sensor circuit, by bus or I/O mouth with control radiating circuit and the button that the MCU circuit is connected; During handwriting input, described acceleration transducer is used to detect telepilot when motion at X, Y, three axial acceleration of Z, and exports to control MCU circuit.
In embodiments of the present invention, by on telepilot, increasing the mode of acceleration transducer, ingenious powerful processor performance and the bigger display screen of televisor of multimedia, network chip that utilizes televisor, realize by the handwriting input of acceleration sensing telepilot, on televisor, carry out handwriting input identification and show, make things convenient for the consumer to use and cost low.
Description of drawings
Fig. 1 is a theory diagram of the present invention.
Fig. 2 is the circuit theory diagrams of acceleration sensing remote control unit of the present invention.
Fig. 3 is the control flow chart of MCU controller of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to shown in Figure 1, hand input system for remote controller of the present invention includes acceleration sensing remote control unit, reception and handwriting input processing unit and display processing unit.The control MCU circuit that the acceleration sensing remote control unit comprises acceleration sensor circuit, be connected with acceleration sensor circuit, by bus or I/O mouth with control radiating circuit and the button that the MCU circuit is connected.Described button includes common remote keying, enter key and writes key.During handwriting input, acceleration transducer is used to detect telepilot when motion at X, Y, three axial acceleration of Z, and exports to control MCU circuit.Write and be in the state of writing or mobile status when key is used to discern the motion of current telepilot.When writing a stroke, need pin and write key and do not put, at this moment telepilot is in the state of writing; One stroke is write and is finished, and discharges to write key, and at this moment telepilot is in mobile status, can move to the next record reference position; And then pin and write key and begin to write next stroke, carry out successively finishing until writing.Control MCU circuit obtains three axial acceleration informations of X, Y, Z of acceleration transducer and key information and (writes that key is pressed and release is divided into two button operations, other buttons are pressed and are discharged as a button operation), these data are encoded according to the wireless transmit agreement, export to radio transmitter by bus or I/O mouth then, be modulated to corresponding transmission frequency and launch by antenna or power valve.
Enter key is used to switch handwriting input state and common remote state.When being in common remote state, what telepilot was launched is common remote keying information, at this moment can switch to the handwriting input state by an enter key; When being in the handwriting input state, what telepilot was launched is handwritten input information, at this moment can switch to common remote state by an enter key; The telepilot default conditions are common remote states, are beneficial to reduce power consumption.The function of enter key also can substitute by common remote keying and the cooperation of writing key.The telepilot default conditions are common remote states; Press and write key and enter when writing state, switch to the handwriting input state simultaneously; Under the handwriting input state, press common remote keying or do not have button to surpass certain hour (such as 5 seconds), automatically switch into common remote state.
Receive with the handwriting input processing unit and include receiving circuit and main control processor, after receiving circuit receives the wireless signal of telepilot emission, demodulate acceleration and data such as button through coding, export to main control processor, main control processor is through decoding, extract X, Y, three axial acceleration informations of Z and key information, calculate the track of writing in view of the above, simultaneously, call the handwriting recognition software module, it is selective to return a series of reference characters, at this moment can re-enter by the character or the cancellation of the selected input of the common key-press on the telepilot (such as numerical key or directionkeys and definite key).The handwriting trace of handwriting input can be gone up at UI (user interface) and draw, so that the writer controls and state is write in adjustment; The reference character that returns also can show on UI, selects for the writer.If the invention creation is to be applied on the set-top box, then these UI information can be exported by video, output to external display and show; If be applied on the televisor, then these UI information can be exported by video, output to the display process chip and handle, and show by display screen at last, also can pass through control/communication data line, and control display process chip produces, and shows by display screen.
Figure 2 shows that the circuit theory diagrams of acceleration sensing remote control unit, wherein, what acceleration transducer adopted is three, simulation output acceleration transducer, and output AoutX, AoutY, AoutZ are respectively X, Y, the output of Z axle acceleration, are electric current output.X-axis acceleration output AoutX is converted to analog voltage signal after through first resistance R 6, second resistance R 22, transfers to the first amplifier U then
2-1The amplification that gains exports control MCU circuit again to after the low-pass filtering through the 3rd resistance R 3 and the 4th capacitor C 4; Y-axis acceleration output AoutY is converted to analog voltage signal after through the 4th resistance R 20, the 5th resistance R 23, transfers to the second amplifier U then
2-2The amplification that gains exports control MCU circuit again to after the low-pass filtering through the 6th resistance R 4 and the 5th capacitor C 5; In like manner, Z axle acceleration output AoutZ is converted to analog voltage signal after through the 7th resistance R 21, the 8th resistance R 24, transfers to the 3rd amplifier U then
2-3The amplification that gains exports control MCU circuit again to after the low-pass filtering through the 9th resistance R 5 and the 6th capacitor C 6.Certainly, acceleration transducer also can adopt two axle acceleration sensors, can also adopt PWM output or SPI, I2C interface etc. digital acceleration sensor, wherein, do not need to add discharge circuit when adopting digital acceleration sensor.Control MCU circuit comprises MCU controller and the peripheral circuit that connects the MCU controller.Wherein, the 41st, 42,43 pin of MCU controller are the AD mouth, receive the aanalogvoltage of acceleration sensor circuit output, by the inner AD circuit of MCU controller aanalogvoltage are converted to numerical data then, and different voltages are represented different acceleration.Crystal oscillator X1, the 7th capacitor C 7, the 8th capacitor C 8 are formed the external crystal oscillating circuit of MCU controller.Button and acceleration information after the MCU controller is handled are exported to wireless transmitting module by the SPI interface of the 7th, 8,9 pin.Wireless transmitting module is for being the 2.4G wireless transmitting module in this example, can certainly adopt wireless transmitting module such as infrared, bluetooth.
Figure 3 shows that the control flow chart of MCU controller, it is common remote state that telepilot at first is set after the initialization, detect the input of button, judge whether it is common key-press, if common key-press, judge then whether telepilot is for the handwriting input state, if not the handwriting input state, then send common key-press information, if the handwriting input state, it is common remote state that telepilot then is set, and sends common key-press information then.If to detecting the button input is not common key-press, build but press to write, then send to press and write key information, it is the handwriting input state that telepilot is set, and obtains each acceleration of acceleration transducer, sends acceleration information.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. hand input system for remote controller, comprise and receiving and handwriting input processing unit, display processing unit, it is characterized in that: also include the acceleration sensing remote control unit, the control MCU circuit that described acceleration sensing remote control unit comprises acceleration sensor circuit, be connected with acceleration sensor circuit, by bus or I/O mouth with control radiating circuit and the button that the MCU circuit is connected; During handwriting input, described acceleration transducer is used to detect telepilot when motion at X, Y, three axial acceleration of Z, and exports to control MCU circuit.
2. as claimed in claim 1, it is characterized in that: described button includes common remote keying, enter key and writes key, and described writing is in the state of writing or mobile status when key is used to discern the motion of current telepilot; And enter key is used to switch handwriting input state and common remote state.
3. as claimed in claim 2, it is characterized in that: described control MCU circuit obtains three the axial acceleration informations of X, Y, Z and the key information of acceleration transducer, these data are encoded according to the wireless transmit agreement, export to radio transmitter by bus or I/O mouth then, be modulated to corresponding transmission frequency and launch by antenna or power valve.
4. as claimed in claim 3, it is characterized in that: described reception and handwriting input processing unit include receiving circuit and main control processor, after receiving circuit receives the wireless signal of telepilot emission, demodulate acceleration and data such as button through coding, export to main control processor, main control processor is through decoding, extract X, Y, three axial acceleration informations of Z and key information, calculate the track of writing in view of the above, simultaneously, call the handwriting recognition software module, it is selective to return a series of reference characters, at this moment can re-enter by the character or the cancellation of the selected input of the common key-press on the telepilot.
5. as claimed in claim 4, it is characterized in that: the handwriting trace of described handwriting input can be drawn on UI, so that the writer controls and state is write in adjustment, simultaneously, the reference character that returns also can show on UI, selects for the writer.
6. as claimed in claim 5, it is characterized in that: described, what acceleration transducer adopted is three, simulation output acceleration transducer, and output AoutX, AoutY, AoutZ are respectively X, Y, the output of Z axle acceleration, are electric current output.
7. as claimed in claim 6, it is characterized in that: described X-axis acceleration output AoutX is converted to analog voltage signal after through first resistance R 6, second resistance R 22, transfers to the first amplifier U then
2-1The amplification that gains exports control MCU circuit again to after the low-pass filtering through the 3rd resistance R 3 and the 4th capacitor C 4.
8. as claimed in claim 7, it is characterized in that: described Y-axis acceleration output AoutY is converted to analog voltage signal after through the 4th resistance R 20, the 5th resistance R 23, transfers to the second amplifier U then
2-2The amplification that gains exports control MCU circuit again to after the low-pass filtering through the 6th resistance R 4 and the 5th capacitor C 5.
9. as claimed in claim 8, it is characterized in that: in like manner described, Z axle acceleration output AoutZ is converted to analog voltage signal after through the 7th resistance R 21, the 8th resistance R 24, transfers to the 3rd amplifier U then
2-3The amplification that gains exports control MCU circuit again to after the low-pass filtering through the 9th resistance R 5 and the 6th capacitor C 6.
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| CN 201010211631 CN101893990A (en) | 2010-06-25 | 2010-06-25 | Hand input system for remote controller and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010211631 CN101893990A (en) | 2010-06-25 | 2010-06-25 | Hand input system for remote controller and method thereof |
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| CN102364544A (en) * | 2011-10-25 | 2012-02-29 | 鸿富锦精密工业（深圳）有限公司 | Integrated remote controller |
| CN102542776A (en) * | 2010-12-13 | 2012-07-04 | 盛乐信息技术（上海）有限公司 | Remote control system, remote control transmitting equipment and remote control method |
| CN103744512A (en) * | 2014-01-14 | 2014-04-23 | 上海斐讯数据通信技术有限公司 | Computer input method utilizing mobile phone as mobile terminal and hardware equipment |
| 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 |
| CN105160847A (en) * | 2015-08-27 | 2015-12-16 | 苏州市新瑞奇节电科技有限公司 | Touch filtering type power-saving remote controller |
| CN105374198A (en) * | 2015-11-09 | 2016-03-02 | 苏州美达瑞电子有限公司 | Wireless remote controller based on touch writing pad |
| CN112712688A (en) * | 2020-12-22 | 2021-04-27 | 惠州视维新技术有限公司 | Remote controller, display device, display remote control system and remote control method thereof |
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| CN105374198A (en) * | 2015-11-09 | 2016-03-02 | 苏州美达瑞电子有限公司 | Wireless remote controller based on touch writing pad |
| CN112712688A (en) * | 2020-12-22 | 2021-04-27 | 惠州视维新技术有限公司 | Remote controller, display device, display remote control system and remote control method thereof |
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Application publication date: 20101124 |