CN2601426Y

CN2601426Y - Radio input pen

Info

Publication number: CN2601426Y
Application number: CNU02234280XU
Authority: CN
Inventors: 王宜
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-04
Filing date: 2002-05-04
Publication date: 2004-01-28
Anticipated expiration: 2012-05-04

Abstract

The utility model relates to a wireless input pen for the computer equipments, which comprises a nib pressure sensor arranged inside the pen, an optic movement sensor, a wireless transmission interface controlling circuit and a power supply. The pen which is handed can mobiling-locate on the plane of an ordinate object, the movement of the pen and the state information of the nib will be sent to computer through the wireless interface of the pen.

Description

Wireless input pen

Affiliated technical field

The utility model relates to a kind of hand-held lip pencil positioning input device of computer equipment, hand-held pen can be gone up running fix on the surface (desktop, the paper of books even the surface of fluorescent screen etc.) of common objects and moving of pen reached status information by the input of the wave point on pen computing machine.

Background technology

Present hand-held positioning input device mainly is that various wired and wireless Genius mouses (comprise mechanical type, photo-electric, touch plate type), the handwriting pad input pen, the rocker-type handle, trace ball etc., wherein the handwriting pad input pen can replace other several devices on function, also can cooperate handwritten form identification software and mapping software to realize various literal or figure input, but must dispose a clipboard (in position and pressure transducer are arranged) can work, and people are accustomed to using Genius mouse during conventional location, because can arbitrarily slide on the table.

Summary of the invention

For overcoming the inconvenience that handwriting pad uses and the limitation of Genius mouse function, comprehensive the two advantage, the utility model provides a kind of wireless input pen, do not need special-purpose handwriting pad, only need nib to be come close to or in contact with ordinary desktop or other can make the body surface of its performance function move with writing posture, get final product the positioning screen cursor, cooperate handwritten form identification software input characters and figure.

The utility model comprise one for hand-held holds a pen attitude is used and cooperate its internal circuit assembly that the handwriting structure that designs is installed, and circuit part.Circuit comprises: pen point pressure sensor, optics movable sensor, wireless transmission interface control circuit and power supply.

The technical scheme that the utility model is taked is: the nib of hand-held anterior end of pen is ined succession or itself is exactly whether a detection contacts the sensor that reaches contact pressure with the surface, the simplest is an end of a touch switch, when nib during with the certain pressure surface in contact, switch connection output useful signal is in the state of nib contactant surface to the wireless transmission interface control circuit to show wireless input pen, otherwise is vacant state.When the application of wireless pen complicated: during as the feature of the line weight that will show input or handwritten form stroke, touch switch can and amplify output sample circuit assembly with a pressure transducer and replace, and the pressure of nib can be quantized and output to the wireless transmission interface control circuit.Nib can be positioned at a side rather than the center of handwriting front end, and the direction of this side has been represented both X-axis forwards of screen surface coordinate of plane of orientation coordinate.

The front end of pen has a window, and the photo-electric movable sensor is housed thereafter, relatively moving of the plane in the aligning anterior end of pen coverage is converted into digital signal outputs to the overall treatment circuit.Whether the output of this sensor and the state of nib (unsettled) be irrelevant.

A kind ofly can be used for optics movable sensor of the present utility model and be made up of following: optical imagery inductor, and the optics motion sensor formed of supporting digital signal processing and output precision DSP encapsulation cooperate optical lens, light emitting diode (LED) again.Its principle of work is, illuminate nib objects in front surface by LED, reflected light obtains the body surface image through camera lens to the optical imagery inductor, DSP compares processing with high speed (the per second hundreds of is to several thousand times) to image, analyze the direction and the speed of surperficial relative motion, export with digital signal again.This class sensor and technology apply on the product of many moneys optical mouse maturely, and the packing forms of components and parts is more suitable for using on input pen after improving.

Another part of pen is the wireless transmission control interface, with the pen point pressure sensor, the state output of the data of optics movable sensor output and the pushbutton switch established for some functions of use is as input, carry out outputing to the wireless data transmission interface after the comprehensive encoding process, and some functional parts are controlled.

Wireless data interface can adopt the various proven technique of present use, and agreement and device are typically the infrared interface technology, or the Radio Transmission Technology of bluetooth (Bluetooth) agreement.

Use battery to provide the energy for each parts of wireless input pen.

Be connected on the general-purpose interface of the computing machine that uses this input pen as independent module with the other end data-interface of wireless input pen swap data, perhaps be embedded in the computing machine.

Wireless input pen uses the course of work to be: make pen tip be close to the body surface certain distance when holding to begin to write, make the photo-electric movable sensor actual induction work (pass through suitable design as shorten nib length as far as possible, strengthen the emissive power of LED or use laser diode, adjust the focal length of lens, this actual induction distance can be wide enough so that nib does not need the contactant surface), this moment the mobile wireless input pen, mobile message is responded to through the photoelectricity movable sensor, the state output of going up other function button switch with nib state and pen is sent to computing machine behind the wireless transmission control interface coding together, and software just can determine that the shift position of onscreen cursor moved with other.When pressing nib to body surface, the state that the pen point pressure sensor changes is received that by computing machine the information that the software binding site moves just can be used as character stroke, and the input of pattern line or click choose action to handle.

The beneficial effect of wireless input pen is, with the handwriting mode input characters and the location of people's custom, can arbitrarily use in the bigger plane of optional scope again, also do not drag the inconvenience that cable connection brought.

Below in conjunction with drawings and Examples the utility model is further described.

The structure of wireless input pen has shown the installation relation that each parts is main as shown in Figure 1.

Wherein: 1. nib, 2. reed contact microswitch SW, nib can suitably move vertically, and withstand on armature contact one end of microswitch, microswitch is in off-state at ordinary times under the effect of reed elastic force, the actuating length of switch and elastic force should be suitable littler of to adapt to the sensation custom of starting to write when staff is write, present embodiment is just formed the pen point pressure sensor simply by 1. and 2., 3. wireless input pen shell, 4. the synoptic diagram of optics motion sensor, ready-made product can be used the ADNS-2030 optical mouse inductor of U.S. Aglent Technologies company, its inside comprises an image and obtains the IAS of system, a digital signal processor DSP, a twin-channel integration amplifies the serial line interface of follower and two pins, this optical sensor can be with auspicious speed picked-up and the processing image of 500-2300 p.s., resolution is 400-800CPI, 16 pin DIP encapsulation, the optical window of this sensor is below integrated encapsulation, during present embodiment uses its pin all make progress to reverse and be installed on the little circuit board, to increase the space under the sensor, 5. supporting lens of optical sensor, 6. the body surface that faces toward in order to the illumination optical sensor of LED 1,7.LED1 the lens that optically focused is used, (4.5.6.7. forms the optics movable sensor), 8. a shell front end was the window that photoelectric sensor is opened, 9. circuit board, connected above-mentioned each sensor and the wireless transmission control interface has been housed, 10. the processor of wireless transmission control interface, be a Programmable Logic Controller (other device of wireless transmission control interface does not mark), 11. infrared light-emitting diode LED2, the form of data with the infrared ray pulse radiate, 12. the infrared ray window of opening on the shell, 13. battery, 14. the button power switch, 15. body surfaces.

A circuit theory of wireless input pen as shown in Figure 2.

Among the figure, IC1 chip ADNS-2030 is the optical mouse sensor of Aglent Technologies company, and it handles the body surface image that illuminates through LED1, analyzes surperficial mobile status, and the result is exported by rs 232 serial interface signal SDIO.IC2 is the band USB of CYPRESS company and the peripheral controllers CY7C63723 of PS/2 interface, exports after the protocol code of state by wireless transmission with the data of IC1 output and pen point pressure switch SW, is sent by infrared light-emitting diode LED2 after current drives.Also marked the circuit signal of wireless interface receiving end among the figure, wireless data outputs to IC3 (still using CY7C63723) after infrared remote receiver amplifies reception, by PS/2 port and the compunication on it, the input that the input data of wireless like this input pen can be used as a PS/2 mouse utilizes ready-made software to handle on computers, finish the location, operations such as mapping.

Claims

1. wireless input pen is used in a computer equipment location, it is characterized in that being equipped with in the pen pen point pressure sensor (2), optics movable sensor (4,5,6,7) and built-in wireless transmission interface control circuit (10,11).

2. wireless input pen according to claim 1 is characterized in that: anterior end of pen has a window (8), and the optics movable sensor is aimed at the body surface of anterior end of pen through window, nib with writing gestures near body surface (15) but the time actual induction just.

3. wireless input pen according to claim 1 is characterized in that: the pen point pressure sensor is loaded on anterior end of pen and links to each other with nib.

4. wireless input pen according to claim 1 is characterized in that: the data message that the wireless transmission interface control circuit is only handled and sent the nib state and move in real time in real time on the pen.

5. wireless input pen according to claim 1 is characterized in that: described nib is meant during wireless input pen in working order near the nearest part of body surface.

6. wireless input pen according to claim 1 is characterized in that: the wireless signal transmission parts (11) of wireless transmission interface control circuit are positioned at the tail end of wireless input pen or near tail end, leave a body position of hand gripping place.

7. wireless input pen according to claim 4 is characterized in that: the infrared ray tranmission techniques is adopted in the transmission of data, the host-host protocol of self-defined and receiving end or adopt the recognised standard agreement.

8. wireless input pen according to claim 4 is characterized in that: wireless radio-frequency is adopted in the transmission of data, the host-host protocol of self-defined and receiving end or adopt the recognised standard agreement.