CN205038601U - Novel multi -functional wireless bluetooth keyboard - Google Patents
Novel multi -functional wireless bluetooth keyboard Download PDFInfo
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- CN205038601U CN205038601U CN201520717490.7U CN201520717490U CN205038601U CN 205038601 U CN205038601 U CN 205038601U CN 201520717490 U CN201520717490 U CN 201520717490U CN 205038601 U CN205038601 U CN 205038601U
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- keyboard
- bluetooth
- interface
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- hardware system
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Abstract
The utility model discloses a novel multi -functional wireless bluetooth keyboard, including major key dish, hardware systems and numeric keypad, it reserves the district to be equipped with indicating device on the major key dish, hardware systems includes the system bus, be connected with on the system bus ROM, RAM, processing unit, bluetooth baseband core, general inputoutput interface, matrix keyboard scan, 3 mouse signal decoders hardware systems passes through the sane ware of on -off and inserts the power, bluetooth baseband core is connected with wireless transmitter, wireless transmitter is connected with transmit -receive switch and frequency synthesizer, intercoordination control between wireless transmitter and the transmit -receive switch, regard as keyboard main control chip with the BCM2042 chip, circuit and software function to the keyboard have carried out basic design, adopt the collapsible design of separable numerical key and three -section, the demand of mobile device has been satisfied, the outward appearance is small and exquisite, lightly, the device combination meeting of use is more practical with removing, it is nimble.
Description
Technical field
The utility model relates to a kind of keyboard, particularly a kind of Multifunction wireless bluetooth keyboards.
Background technology
Along with the development of electronic information technology and people's requirement higher to portable experience, the digital products such as notebook computer, panel computer, smart mobile phone pour into the life of people as flood, these products abandon traditional physical keyboard gradually, transfer with the keypad of simplifying, narrow qwerty keyboard even dummy keyboard.But when the operation used times such as words input are longer, these keyboard Designing will seem unable to do what one wishes, affect work efficiency.At this moment people more wish that the physical keyboard of a ministerial standard operates, and such keyboard is light, be easy to carry about with one and can break away from the constraint of cable, want practical, flexible and attractive in appearance when combinationally using with digital product.
Summary of the invention
The purpose of this utility model is the shortcoming overcoming prior art, provides a kind of Multifunction wireless bluetooth keyboards.
The purpose of this utility model is achieved through the following technical solutions: a kind of Multifunction wireless bluetooth keyboards, comprise Master Keyboard, hardware system and numeric keypad, described Master Keyboard is provided with indicating device trough, described hardware system comprises system bus, system bus is connected with ROM, RAM, processing unit, bluetooth baseband core, universal input/output interface, matrix keyboard scans, 3 axle mouse signal demoders, described hardware system is by switching regulator sane device access power supply, described bluetooth baseband core is connected with wireless launcher, described wireless launcher is connected with transmit-receive switch and frequency synthesizer, mutual cooperation control between described wireless launcher and transmit-receive switch.
On such scheme basis preferably, described hardware system also comprises power management module, is connected with the sane device of switching regulator.
On such scheme basis preferably, described universal input/output interface comprises LED interface, LCD interface and electricity interface.
On such scheme basis preferably, described frequency synthesizer is connected with extraneous crystal oscillator.
According to technique scheme, the beneficial effect that the utility model compared with prior art has is: the utility model is using BCM2042 chip as keyboard main control chip, Basic Design has been carried out to the circuit of keyboard and software function, adopt separable numerical key and three sections of collapsible design proposals, meet the demand of mobile device, outward appearance is small and exquisite, light, and combinationally using with mobile device can be more practical, flexible.
Accompanying drawing explanation
Fig. 1 is hardware system structure schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model.
In figure, 1-Master Keyboard; 2-hardware system; 3-numeric keypad; 4-showing device trough; 5-system bus; 6-ROM; 7-RAM; 8-processing unit; 9-bluetooth baseband core; 10-universal input/output interface; 11-matrix keyboard scans; 12-3 axle mouse signal demoder; The sane device of 13-switching regulator; 14-power supply; 15-wireless launcher; 16-transmit-receive switch; 17-frequency synthesizer; 18-power management module; 19-LED interface; 20-LCD interface; 21-electricity interface; The extraneous crystal oscillator of 22-.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is only the utility model for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
As depicted in figs. 1 and 2, a kind of Multifunction wireless bluetooth keyboards, comprise Master Keyboard 1, hardware system 2 and numeric keypad 3, described Master Keyboard 1 is provided with indicating device trough 4, described hardware system 2 comprises system bus 5, system bus 5 is connected with ROM6, RAM7, processing unit 8, bluetooth baseband core 9, universal input/output interface 10, matrix keyboard scanning 11, 3 axle mouse signal demoders 12, described hardware system 2 accesses power supply 14 by the sane device 13 of switching regulator, described bluetooth baseband core 9 is connected with wireless launcher 15, described wireless launcher 15 is connected with transmit-receive switch 16 and frequency synthesizer 17, mutual cooperation control between described wireless launcher 15 and transmit-receive switch 16.
Further, described hardware system 2 also comprises power management module 18, is connected with the sane device 13 of switching regulator.
Further, described universal input/output interface 10 comprises LED interface 19, LCD interface 20 and electricity interface 21.
Further, described frequency synthesizer 17 is connected with extraneous crystal oscillator 22.
What main control chip of the present utility model adopted is a BCM2042 chip being applicable to bluetooth keyboard and mouse that Broadcom company produces.This chip is primarily of connecting the formation such as voltage stabilizer and low power module on the direct interface of keyboard key scan array, optical mouse logic, plate, have employed single-chip configuration and meet the built-in firmware of bluetooth humanization interface equipment (HID) specification, there is the adjustable frequency hopping, high-performance bluetooth and the baseband technology that reduce interference and can the quick interconnection technique of effective extending battery life.
The utility model Software for Design principle: keyboard main control chip BCM2042 is integrated with 8051 microprocessors, according to the functional characteristic of 8051 microprocessors, following basic function can be realized: initialize Bluetooth chip, keyboard scan, identification mouse movement direction, mouse step-by-step counting, Key dithering, keyboard and mouse data encoding, the transmission of keyboard and mouse data etc.These basic functions can by C51 compiler development.
Based on above-mentioned, the utility model has following advantage: the utility model is using BCM2042 chip as keyboard main control chip, Basic Design has been carried out to the circuit of keyboard and software function, adopt separable numerical key and three sections of collapsible design proposals, meet the demand of mobile device, outward appearance is small and exquisite, light, and combinationally using with mobile device can be more practical, flexible.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a Multifunction wireless bluetooth keyboards, it is characterized in that: comprise Master Keyboard (1), hardware system (2) and numeric keypad (3), described Master Keyboard (1) is provided with indicating device trough (4), described hardware system (2) comprises system bus (5), (5) are connected with ROM(6 to system bus), RAM(7), processing unit (8), bluetooth baseband core (9), universal input/output interface (10), matrix keyboard scanning (11), 3 axle mouse signal demoders (12), described hardware system (2) is by the sane device of switching regulator (13) access power supply (14), described bluetooth baseband core (9) is connected with wireless launcher (15), described wireless launcher (15) is connected with transmit-receive switch (16) and frequency synthesizer (17), mutual cooperation control between described wireless launcher (15) and transmit-receive switch (16).
2. a kind of Multifunction wireless bluetooth keyboards according to claim 1, is characterized in that: described hardware system (2) also comprises power management module (18), is connected with the sane device of switching regulator (13).
3. a kind of Multifunction wireless bluetooth keyboards according to claim 1, is characterized in that: described universal input/output interface (10) comprises LED interface (19), LCD interface (20) and electricity interface (21).
4. a kind of Multifunction wireless bluetooth keyboards according to claim 3, is characterized in that: described frequency synthesizer (17) is connected with extraneous crystal oscillator (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717490.7U CN205038601U (en) | 2015-09-17 | 2015-09-17 | Novel multi -functional wireless bluetooth keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717490.7U CN205038601U (en) | 2015-09-17 | 2015-09-17 | Novel multi -functional wireless bluetooth keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205038601U true CN205038601U (en) | 2016-02-17 |
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ID=55297487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520717490.7U Expired - Fee Related CN205038601U (en) | 2015-09-17 | 2015-09-17 | Novel multi -functional wireless bluetooth keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205038601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081326A (en) * | 2019-12-27 | 2020-04-28 | 广州视声智能科技有限公司 | Hospital ward bedside display system based on Bluetooth technology |
-
2015
- 2015-09-17 CN CN201520717490.7U patent/CN205038601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081326A (en) * | 2019-12-27 | 2020-04-28 | 广州视声智能科技有限公司 | Hospital ward bedside display system based on Bluetooth technology |
| CN111081326B (en) * | 2019-12-27 | 2023-04-18 | 广州视声智能科技有限公司 | Hospital ward bedside display system based on Bluetooth technology |
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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: 20160217 Termination date: 20160917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |