CN2881776Y - Character input device - Google Patents
Character input device Download PDFInfo
- Publication number
- CN2881776Y CN2881776Y CN 200520045878 CN200520045878U CN2881776Y CN 2881776 Y CN2881776 Y CN 2881776Y CN 200520045878 CN200520045878 CN 200520045878 CN 200520045878 U CN200520045878 U CN 200520045878U CN 2881776 Y CN2881776 Y CN 2881776Y
- Authority
- CN
- China
- Prior art keywords
- processing unit
- information
- central processing
- character
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a character input device comprising a transparence key-switch module, a center-processing module, a driving module and an LCD display module. The transparence key-switch module, the driving module, the LCD display module are electrically connected to the center-processing module, and the transparence key-switch module is located on the panel of the LCD display module. By the adoption of the LCD display module with a transparence key-switch module, the character input device of this utility model is of compact structure, easy carry, and the driving module can be connected to the upper computer by a standard keyboard interface, a standard serial interface and a universal serial bus interface, so the character input device is suitable for most computers or other control systems, onsequently, the compatibility of this utility model is ensured.
Description
Technical field
The utility model relates to a kind of character entry apparatus, concretely, relate to a kind of with the transparent push switch as input media and liquid crystal display as display device character entry apparatus.
Background technology
Character entry apparatus of the prior art is generally mechanical keyboard, keyboard top is provided with display screen, and the user passes through with reference to the diagram input character on the keyboard, simultaneously, the display screen of keyboard top shows the character that book is gone into, keyboard generally comprises an acknowledgement key, and after acknowledgement key is pressed, Shu Ru character will be transferred into coupled host computer before, yet the weak point of this input media is, if be portable, then number of keys is limited, can not comprise too many character; If input media is very big, then be not easy to carry, also be not easy to the occasion limited and use in some space.
The character entry apparatus that comprises mode switch is also arranged in the prior art, as Chinese patent, the keyboard input devices that the utility model patent of patent No. 200410080456.X is put down in writing comprises key input section, mode switch parts, keyboard backlight and keyboard backlight light emitting control parts.The background light of this utility model dependence different colours illuminates the different transparent parts on the button, and rely on the mode switch parts to realize the input of character, though this kind character entry apparatus has solved the input problem of multiple character, also there is defective in this kind input media.At first, the space of button is limited, can not comprise a variety of character informations, therefore, even if comprise the mode switch parts, the character that is combined into also can not be a lot, secondly, the spread pattern of button is fixed on the keyboard, and the character of so importing different mode then needs to switch repeatedly, in addition, input mode need be changed as the user, just button must be changed, therefore, the user can not need with the practical operation according to oneself or like the spread pattern of selecting keyboard, therefore uses very inconvenient.
In addition, the prior art keyboard input devices generally only comprises QWERTY keyboard interface and standard serial bus interface, and therefore, compatibility is not good.
The utility model content
A purpose of the present utility model is to provide a kind of transparent push switch as input media, with the character entry apparatus of liquid crystal display as display device, and compact conformation, input is convenient, the character entry apparatus of compatible multiple and host computer connected mode.
For achieving the above object, a kind of character entry apparatus provided by the utility model is characterized in that comprising:
The transparent push switch element is used to produce key position information, and this information is sent to CPU (central processing unit);
CPU (central processing unit) is used to receive the key position information of transparent push switch element, produces the configuration information of transparent push switch element, and this information is sent to the transparent push switch element; Also be used to produce the display message of liquid crystal display, and, produce the simulation character keys, the form and the arrangement mode information of simulation character keys is set according to the input information of transparent push switch element; And the character information of keying input information representative is sent to driver element;
Driver element comprises QWERTY keyboard interface, standard serial interface and USB (universal serial bus), is used for and the host computer interface, and is used to receive the character information that CPU (central processing unit) sends, and this information is sent to host computer; Also be used to obtain the permission input information of host computer and be sent to CPU (central processing unit);
Liquid crystal display is used to show the simulation character keys of transmission from CPU (central processing unit), the form of character keys and arrangement mode information;
Described transparent push switch element is electrically connected with described CPU (central processing unit), described driver element is electrically connected with described CPU (central processing unit), described liquid crystal display is electrically connected with described CPU (central processing unit), and described transparent push switch element is positioned on the liquid crystal display display surface.
Effect of the present utility model is, adopt attached transparent push switch element on the liquid crystal display, make the compact conformation of character entry apparatus of the present utility model, be easy to carry, provide driver element to pass through QWERTY keyboard interface, standard serial interface and USB (universal serial bus) with host computer, so applicable to most computers or other control system, thereby guaranteed compatibility of the present utility model.
Description of drawings
Fig. 1 is the system construction drawing of character entry apparatus described in the utility model.
Fig. 2 is the system construction drawing of transparent push switch element in the character entry apparatus described in the utility model.
Fig. 3 is the system construction drawing of the CPU (central processing unit) of character entry apparatus described in the utility model.
Fig. 4 is the system construction drawing of the storage unit of character entry apparatus described in the utility model.
Fig. 5 is the system construction drawing of central processing unit in the character entry apparatus described in the utility model.
Fig. 6 is the drive unit system structural drawing of character entry apparatus described in the utility model.
Fig. 7 is the system construction drawing of the liquid crystal display of character entry apparatus described in the utility model.
Embodiment
With reference to Fig. 1, character entry apparatus in first kind of embodiment of the utility model comprises transparent push switch element 1, CPU (central processing unit) 2, driver element 3 and liquid crystal display 4, transparent push switch element 1, driver element 3 and liquid crystal display 4 are electrically connected with CPU (central processing unit) 2.
With reference to Fig. 2, wherein, transparent push switch element 1 comprises transparent push switching motherboard 11 and button controller 12, and button controller links to each other with the output terminal of transparent push switching motherboard 11, receives and calculate the positional information of button, and is sent to CPU (central processing unit).
With reference to Fig. 3, CPU (central processing unit) 2 comprises central processing unit 21, I/O interface 22, voice module 23 and memory cell 24, wherein, central processing unit 21 is by I/O interface 22 and outside transparent push switch element 1, driver element 3, liquid crystal display 4, and inner voice module 23 is electrically connected; With reference to Fig. 4, memory cell 24 comprises preserves the first memory 241 that the character arrangement mode selects information and recording user to be provided with, preserve the second memory 242 that pattern configuration information and recording user are provided with, the 3rd storer 243 of the information of record character input.
With reference to Fig. 5, described central processing unit 21 comprises permission decision circuitry 211, and arrangement mode is selected circuit 212, mode setting circuit 213, and record of keys circuit 214 and button finish decision circuitry 215; Allowing decision circuitry 211 and arrangement mode to select circuit 212, mode setting circuit 213, button to finish decision circuitry 215 is electrically connected, arrangement mode selects circuit 212 to be electrically connected with record of keys circuit 214, and record of keys circuit 214 finishes decision circuitry 215 with button and is electrically connected.
Wherein, allow decision circuitry 211, be used to receive permission input information, and judged result is sent to mode selecting arrangement 212 or mode setting circuit 213 from host computer.The permission input information of host computer is high level (also can be low level), receives then Starting mode selecting arrangement 212 of high level as allowing decision circuitry 211, as receives then start-up mode selecting arrangement of low level.
Arrangement mode is selected circuit 212 to extract the character arrangement mode from first memory 241 and is selected information, this character arrangement mode information, arrangement mode for character, for example, arrange numeral with annular arrangement (conventional phone number arrangement mode) or arrayed (present telephone number arrangement mode), provide Information Selection to show and be presented on the liquid crystal display, scan corresponding informance simultaneously and select the button of the transparent push switching motherboard 11 of display position to have or not input.Then write down the pairing selection of corresponding input if any input, and extract corresponding arrangement mode, be shown in liquid crystal display 4, and send enabling signal to coupled record of keys 214 from storer 241; As do not detect input, then keep character arrangement mode selection mode and continue detecting.
Record of keys circuit 214 links to each other with mode selecting arrangement 212, the enabling signal that receive mode selecting arrangement 212 sends also starts, after the startup, the input of the corresponding transparent push switching motherboard 11 of character on detection and the liquid crystal display 4, if any input, the pairing character information in position of record of keys circuit 214 journals inputs then, and be kept in the 3rd storage 243;
Button finishes decision circuitry 215 and is used to detect on the position that the button that shows on the liquid crystal display 4 finishes the pairing transparent push switching motherboard 11 of display message and has or not input, if any input, then the character information with journal is sent to driver element 3, restarts simultaneously to allow decision circuitry 211 to allow to judge.
With reference to Fig. 6, driver element 3 comprises QWERTY keyboard interface and driving circuit 31, and the standard serial communication interface reaches circuit 32 and USB (universal serial bus) and driving circuit 33 drivingly, and communicates by letter with host computer according to the corresponding communication agreement.The QWERTY keyboard interface, standard serial communication interface and same with serial bus interface and chip for driving commercialization thereof, technology is known in the confession that host-host protocol belongs in this area, so does not describe.
With reference to Fig. 7, liquid crystal display 4 comprises display panels 41 and liquid crystal display panel drive circuit 42, display panels 41 is electrically connected with liquid crystal display panel drive circuit 42, and liquid crystal display panel drive circuit 42 is electrically connected with central processing unit 21 and storer 24.
Claims (7)
1. character entry apparatus is characterized in that comprising:
The transparent push switch element is used to produce key position information, and this information is sent to CPU (central processing unit); CPU (central processing unit) is used to receive the key position information of transparent push switch element, produces the configuration information of transparent push switch element, and this information is sent to the transparent push switch element; Also be used to produce the display message of liquid crystal display, and, produce the simulation character keys, the form and the arrangement mode information of simulation character keys is set according to the input information of transparent push switch element; And the character information of keying input information representative is sent to driver element;
Driver element has comprised that QWERTY keyboard interface, standard serial interface and USB (universal serial bus) are used for and the host computer interface, and is used to receive the character information that CPU (central processing unit) sends, and this information is sent to host computer; Also be used to obtain the permission input information of host computer and be sent to CPU (central processing unit);
Liquid crystal display is used to show the simulation character keys of transmission from CPU (central processing unit), and the form and the arrangement mode information of simulation character keys is set;
Described transparent push switch element is electrically connected with described CPU (central processing unit), described driver element is electrically connected with described CPU (central processing unit), described liquid crystal display is electrically connected with described CPU (central processing unit), and described transparent push switch element is positioned on the liquid crystal display display surface.
2. according to the character entry apparatus described in the claim 1, it is characterized in that, CPU (central processing unit) comprises central processing unit, the I/O interface, voice module and memory cell, wherein, central processing unit is by I/O interface and outside transparent push switch element, driver element, liquid crystal display, and inner voice module is electrically connected.
3. according to the character entry apparatus described in the claim 2, it is characterized in that, memory cell comprises preserves the first memory that the character arrangement mode selects information and recording user to be provided with, preserve the second memory that pattern configuration information and recording user are provided with, the 3rd storer of the information of record character input.
4. according to the character entry apparatus described in the claim 2, it is characterized in that described central processing unit comprises the permission decision circuitry, arrangement mode is selected circuit, mode setting circuit, and record of keys circuit and button finish decision circuitry; Allow decision circuitry and arrangement mode to select circuit, mode setting circuit, button to finish decision circuitry and be electrically connected, arrangement mode selects circuit to be electrically connected with the record of keys circuit, and the record of keys circuit finishes decision circuitry with button and is electrically connected.
5. according to the character entry apparatus described in the claim 1, it is characterized in that, the transparent push switch element comprises transparent push switching motherboard and button controller, button controller links to each other with the output terminal of transparent push switching motherboard, is sent to CPU (central processing unit) after receiving and calculate the positional information of button.
6. according to the character entry apparatus described in the claim 1, it is characterized in that driver element comprises the QWERTY keyboard interface, standard serial communication interface and with serial bus interface and corresponding driving circuit, and communicate by letter with host computer according to the corresponding communication agreement.
7. according to the character entry apparatus described in above any claim, it is characterized in that, liquid crystal display comprises display panels and liquid crystal display drive circuit, and display panels is electrically connected with liquid crystal display drive circuit, and liquid crystal display drive circuit is electrically connected with central processing unit and storer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045878 CN2881776Y (en) | 2005-10-25 | 2005-10-25 | Character input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045878 CN2881776Y (en) | 2005-10-25 | 2005-10-25 | Character input device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881776Y true CN2881776Y (en) | 2007-03-21 |
Family
ID=37881615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520045878 Expired - Fee Related CN2881776Y (en) | 2005-10-25 | 2005-10-25 | Character input device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881776Y (en) |
-
2005
- 2005-10-25 CN CN 200520045878 patent/CN2881776Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1179533C (en) | Character-recognition system for mobile radio communication terminal and method thereof | |
| US7742783B2 (en) | Symmetric softkeys on a mobile electronic device | |
| CN1201621C (en) | Mobile terminal equipment, power control method and storage medium for program recording | |
| RU2621963C2 (en) | Keyboard that allows to change images on keys | |
| US20080150901A1 (en) | Integrated Liquid Crystal Display And Touchscreen For An Electronic Device | |
| EP2639679A1 (en) | Integrated liquid crystal display and touchscreen for an electronic device | |
| JPH06119090A (en) | Power economization control system | |
| TWM240050U (en) | Capacitor touch panel with integrated keyboard and handwriting function | |
| JP2013045209A (en) | Input device, input control program, and input control method | |
| CN215642735U (en) | Fingerprint sensing device | |
| TWI794749B (en) | Fingerprint sensing device and operation method thereof | |
| CN101221735B (en) | Dynamic touching moire compensation process and related LCD system | |
| CN2881776Y (en) | Character input device | |
| CN210270850U (en) | Hand-writing and reading equipment | |
| CN110737323A (en) | Screen display method, device, storage medium and terminal | |
| CN106959792B (en) | Touch control detection device with fingerprint identification function | |
| CN100359443C (en) | Character inputting device | |
| CN2507203Y (en) | Mobile telephone set with full screen hand write input function | |
| CN2904088Y (en) | Keying state display for wireless keyboard | |
| CN102346629A (en) | Electronic device as well as multimode input/output device and mode switching method thereof | |
| US20110221660A1 (en) | Self-luminescent Display Device, Display Method and Portable Computer of the Same | |
| CN217821594U (en) | Double-screen display module and translation equipment | |
| CN214544855U (en) | Touch panel light control console with full-color backlight | |
| US20230152904A1 (en) | Electronic label type keyboard | |
| CN200990074Y (en) | Touch control type keyboard and portable electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20101025 |