CN1515986A - Wireless keyboard with hand-writing plate function - Google Patents
Wireless keyboard with hand-writing plate function Download PDFInfo
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- CN1515986A CN1515986A CNA031010350A CN03101035A CN1515986A CN 1515986 A CN1515986 A CN 1515986A CN A031010350 A CNA031010350 A CN A031010350A CN 03101035 A CN03101035 A CN 03101035A CN 1515986 A CN1515986 A CN 1515986A
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- wireless keyboard
- micro controller
- microprocessor
- bluetooth module
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Abstract
The present invention relates to a wireless keyboard with hand-writing function. A control circuit is set in the wireless keyboard, said control circuit is made up by connecting two ultrasonic receivers, a microprocessor, a bluetooth module, a switch matrix circuit and a microcontroller, in which the microcontroller is used for converting the data inputted by switch matrix circuit into RS-232 code, and the microprocessor can be used for converting the data processed by two ultrasonic receivers into universal asynchronous receiver/transmitter (UABT) format, and the bluetooth module can be used for transferring the code converted by microcontroller or microprocessor into the computer with bluetooth transmission function so as to make user more conveniently implement operation.
Description
Technical field
The present invention relates to a kind of Wireless Keyboard of tool handwriting pad function, refer to especially a kind ofly can in Wireless Keyboard, set up device with handwriting input discriminating function.
Prior art
Present Wireless Keyboard on the market, it is in operation, and easily the speed because of user's input expends the different time, and for typewriting quite a lot of time of slow person Chang Yaohua, and it can not be used for digital signature.Identification by handwriting pad then can reduce the time of input or be used for digital signature.
Therefore, if can make this Wireless Keyboard, can avoid the generation of above-mentioned situation, yet not seeing so far there is the device that Wireless Keyboard and handwriting pad discriminating function are combined with the handwriting pad discriminating function.
Summary of the invention
In sum, the invention provides a device that Wireless Keyboard and handwriting pad discriminating function can be combined.
A purpose of the present invention is to provide a device that Wireless Keyboard and handwriting pad discriminating function can be combined, because the user can select to reduce the time of importing with the mode of handwriting input data on Wireless Keyboard, and noting be used in the time of spending more picks up handwriting pad, as long as draw back handwriting pad from this Wireless Keyboard, for the user, quite convenient.
Another object of the present invention is to provide one can between pen and keyboard, import data by the ultrasound wave mode, and the device that transmits by wireless mode between keyboard and the computing machine.
For realizing this goal of the invention, the invention provides one and can in Wireless Keyboard, set up device with handwriting input discriminating function, it establishes a control circuit in Wireless Keyboard, and this control circuit comprises:
One switch matrix circuit;
One micro controller is connected with switch matrix circuit, and this micro controller is that the data-switching via the switch matrix circuit input is become the RS-232 sign indicating number;
Two ultrasonic receivers receive and are located at the data that the ultrasonic transmitter in the pen is sent out, and calculate this coordinate position via the mistiming;
One microprocessor is connected with two ultrasonic receivers, and this microprocessor is that the data-switching that will handle through two ultrasonic receivers becomes the UART form, and
One bluetooth module is connected with micro controller and microprocessor respectively, and this bluetooth module is to deliver to the computing machine with Bluetooth transmission function through the sign indicating number of micro controller or microprocessor conversion.
The also available mode by handwriting pad input of the input of aforementioned data, its front side at this Wireless Keyboard hand-written input block that is pivoted when this handwriting input unit receives the data of style of writing control, promptly calculates this coordinate position; The micro controller of control circuit is that the data-switching via this switch matrix circuit input is become the HID sign indicating number; Microprocessor is that the data-switching that will handle through hand-written input block becomes the HID sign indicating number; Bluetooth module is that the HID sign indicating number that converts to is delivered to the computing machine with Bluetooth transmission function.
Description of drawings
Fig. 1 is the outside drawing of first embodiment of the invention.
Fig. 2 is the circuit block diagram of Fig. 1.
Fig. 3 is the outside drawing of the second embodiment of the present invention.
Fig. 4 is the circuit block diagram of Fig. 3.
Fig. 5 is the circuit block diagram of third embodiment of the invention.
The 1-Wireless Keyboard, 2-control circuit, 21-ultrasonic receiver, 22-microprocessor, 23-bluetooth module, 24-switch matrix circuit, 25-micro controller, 3-pen, 31-ultrasonic transmitter, 4-computing machine, 5-handwriting input unit, 23 '-bluetooth module, 3 '-pen
Embodiment
In order to make your juror can further understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only for reference with the explanation usefulness, be not to be used for the present invention is limited.
See also Fig. 1 and Fig. 2, the present invention is a kind of Wireless Keyboard of tool handwriting pad function, it is provided with a control circuit 2 in this Wireless Keyboard 1, this control circuit 2 comprises two ultrasonic receivers 21, a microprocessor 22, a bluetooth module 23, a switch matrix circuit 24 and a micro controller 25; Wherein:
This two ultrasonic receiver 21 is located at position, Wireless Keyboard 1 front side, and it is to receive ultrasonic transmitter 31 data of sending that are located in the pen 3, and calculates this coordinate position via the mistiming.
Bluetooth module 23 is to be connected with microprocessor 22, and shared same power Vcc, this bluetooth module 23 is to be sent to computing machine 4 by antenna through microprocessor 22 data converted, and the communications protocol of this bluetooth module 23 has LMP (link manager protocol), L2CAP (linklayer control ﹠amp; Adaptationprotocol), HCI (host controller interface), SDP (service discovery protocol), RFCOMM (protocol for RS-232 serial cable emulation) etc.;
Seeing also Fig. 3 and Fig. 4, is the outside drawing of another embodiment of the present invention.The hand-written input block 5 that wherein is pivoted at the position, front side of this Wireless Keyboard 1 as handwriting pad, when this handwriting input unit 5 receives the data of pen 3 ' touch-control, promptly calculates the coordinate position of this pen 3 '; The micro controller 25 of this control circuit 2 is that the data-switching via switch matrix circuit 24 inputs is become the HID sign indicating number; Microprocessor 22 is that the data-switching that will handle through hand-written input block 5 becomes the HID sign indicating number; Bluetooth module 23 is the HID sign indicating numbers that convert to through microprocessor 22 or micro controller 25, delivers to the computing machine 4 with Bluetooth transmission function.
See also Fig. 5, the present invention also can be incorporated into the micro controller 25 of control circuit 2 in the bluetooth module 23 ', so that it reduces cost on making.
In sum, by design of the present invention, can make this Wireless Keyboard have the handwriting input discriminating function, make the user in operation, increase its convenience, though the present invention discloses as above with aforesaid preferred embodiment, yet it is not in order to limiting the present invention, so anyly be familiar with this technology, in not breaking away from spirit of the present invention and scope, when doing a little change and modification.Claims content is determined to be as the criterion protection scope of the present invention when looking.
Claims (5)
1. the Wireless Keyboard of a tool handwriting pad function is characterized in that, establishes a control circuit in Wireless Keyboard, and this control circuit comprises:
One switch matrix circuit;
One micro controller is to be connected with switch matrix circuit, and this micro controller is that the data-switching via the switch matrix circuit input is become the RS-232 sign indicating number;
Two ultrasonic receivers are to receive to be located at the data that the ultrasonic transmitter in the pen is sent out, and calculate this coordinate position via the mistiming;
One microprocessor is to be connected with two ultrasonic receivers, and this microprocessor is that the data-switching that will handle through two ultrasonic receivers becomes universal asynchronous transceiver (UART) form that connects; And
One bluetooth module is connected with micro controller and microprocessor respectively, and this bluetooth module is to deliver to the computing machine with Bluetooth transmission function through the sign indicating number of micro controller or microprocessor conversion.
2. the Wireless Keyboard of tool handwriting pad function as claimed in claim 1 is characterized in that described ultrasonic receiver is provided in a side of on the Wireless Keyboard body.
3. the Wireless Keyboard of tool handwriting pad function as claimed in claim 1 is characterized in that, described micro controller also can combine with bluetooth module.
4. the Wireless Keyboard of a tool handwriting pad function is characterized in that, establishes a control circuit in Wireless Keyboard, and this control circuit comprises:
One switch matrix circuit;
One micro controller is to be connected with switch matrix circuit, and this micro controller is that the data-switching via the switch matrix circuit input is become the HID sign indicating number;
One hand-written input block is to be articulated on the Wireless Keyboard, when this handwriting input unit receives the data of style of writing control, calculates this coordinate position;
One microprocessor is that the data-switching that will handle through hand-written input block becomes the HID sign indicating number; And
One bluetooth module is connected with micro controller and microprocessor respectively, and this bluetooth module is that the HID sign indicating number that converts to through micro controller or microprocessor is delivered to the computing machine with Bluetooth transmission function.
5. the Wireless Keyboard of tool handwriting pad function as claimed in claim 4 is characterized in that, described micro controller also can combine with bluetooth module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031010350A CN1515986A (en) | 2003-01-08 | 2003-01-08 | Wireless keyboard with hand-writing plate function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031010350A CN1515986A (en) | 2003-01-08 | 2003-01-08 | Wireless keyboard with hand-writing plate function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1515986A true CN1515986A (en) | 2004-07-28 |
Family
ID=34239031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031010350A Pending CN1515986A (en) | 2003-01-08 | 2003-01-08 | Wireless keyboard with hand-writing plate function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1515986A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053704A (en) * | 2010-11-24 | 2011-05-11 | 河海大学 | RFID (Radio Frequency Identification Device)-based miniature input terminal with low power consumption and implementation method thereof |
-
2003
- 2003-01-08 CN CNA031010350A patent/CN1515986A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053704A (en) * | 2010-11-24 | 2011-05-11 | 河海大学 | RFID (Radio Frequency Identification Device)-based miniature input terminal with low power consumption and implementation method thereof |
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