CN100520686C

CN100520686C - Photoelectric input pen

Info

Publication number: CN100520686C
Application number: CNB03115638XA
Authority: CN
Inventors: 王宜
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-27
Filing date: 2003-02-27
Publication date: 2009-07-29
Anticipated expiration: 2023-02-27
Also published as: CN1525389A

Abstract

The invention refers to a kind of handle photoelectricity inputting pen for computer device. It sets a pressure sensor in or at side of the shell, there set light house and optical mobile sensor near the end, at the front of the mobile sensor, there sets an optical lens. The invention has a reasonable structure, it is convenient, it can input character and localize the position with handwriting mode, and it can be used in a large area, and it needn't the cable.

Description

The photoelectricity input pen

Technical field

The present invention relates to a kind of input media of computer equipment, especially relate to a kind of hand-held lip pencil location photoelectricity input pen that is used for computer equipment, it can directly be gone up running fix and moving of pen be reached status information and input to computing machine by the wireless launcher on the pen on the surface (desktop, the paper of books even the surface of fluorescent screen etc.) of common objects.

Background technology

The main mechanical type input pen of present hand-held positioning input device.For example, a kind of " touch input pen " (96108214.3) by name can change its length and diameter.The external diameter of input pen can enlarge and is easy to hold when guaranteeing input character and chart.Touch input pen by handwriting part, a caudal peduncle head part, hold the part and head form.Handwriting partly has through hole to extend along its axis, the front end convergent of handwriting part.The button of caudal peduncle head part has sliding pen axle slidably to insert in the through hole of handwriting part.Holding part is made up of a plurality of chuck linear elements that can slide on the tapered portion of handwriting part and nib.Head is fixed on the front end of handwriting part.Sliding pen part is removable by handling button, and the head of written retained part is covered.And for example, a kind of " computing machine handwriting input pen " (00204195.2) its shell is long tubular, the right mouse button switch is in the side of shell, and the left mouse button switch is at outer casing bottom, and the outer touch point of this switch exposes shell, shell has vertical chamber interlinked with the outside, the spin shell is arranged in this chamber, between spin shell top and vertical chamber compression spring is arranged, vertically the chamber side has banking pin, mouse ball and mouse ball direction signal gear train are at the bottom of the spin shell, and light emitting diode and phototriode are in the both sides of grating wheel.

On this basis, also developed various wired and wireless Genius mouses (as photo-electric, touch plate type), and the handwriting pad input pen, rocker-type handle, trace ball etc.Its towel, 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 the clipboard that is provided with the special use of position and pressure transducer in must disposing can be worked, the Genius mouse that can not be accustomed to usefulness as people, the work such as can finishing the location of arbitrarily sliding on the table.

Summary of the invention

The present invention solves the inconvenience of existing handwriting pad use and the shortcomings separately such as limitation of Genius mouse function, creatively both comprehensively is integral.And then provide a kind of wireless photoelectricity 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 its body surface that plays a role move with writing posture, get final product the positioning screen cursor, cooperate handwritten form identification software input characters and figure, leave no trace at the body surface of being write simultaneously.

The present invention also solves the prior art existence simultaneously and drags a technical matters such as inconvenience that cable connection brought.

Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: the photoelectricity input pen, comprise housing, and built-in peripheral controllers, it is characterized in that in described housing or the outside is provided with pressure transducer, the shell end place is provided with light source and optics movable sensor, the place ahead of optics movable sensor is provided with optical lens, at the other nib that is provided with of optics movable sensor, an end that is in enclosure interior at nib is provided with the pressure transducer that links to each other with peripheral controllers, the front end of described light source is provided with condenser, and the side of condenser is provided with reflective mirror.

It is provided with peripheral controllers in housing, and is provided with pressure transducer in described housing, is provided with light source and optics movable sensor near its end.Wherein, described optics movable sensor can carry out the optics motion sensor that the digital signal processor encapsulation of analyzing and processing and output is formed by the optical image capturing system and to image, cooperates with optical lens and light emitting diode again.Its principle of work is, illuminate nib objects in front surface by light emitting diode, reflected light obtains the body surface image through camera lens to the optical image capturing system, digital signal processor compares processing with high speed (the per second hundreds of is to several thousand times) to image, analyze the direction and the distance of surperficial relative motion, to export with digital signal again. this class sensor and technology apply on the product of many moneys optical mouse maturely, and the encapsulation array configuration of components and parts is more suitable for using on input pen after improving.In addition, described peripheral controllers is used for data transmission and control, 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.

As preferably, be provided with described optics movable sensor near the described housing front end central area, its place ahead is provided with optical lens; Be provided with nib on described optics movable sensor side, be provided with the pressure transducer that links to each other with peripheral controllers in the inner of nib.Also can be provided with a body outside described housing, described nib is arranged at housing foremost, and described optical lens is located at its inboard, is provided with the optics movable sensor at the rear side of optical lens; And between the rear end of the described housing that is provided with peripheral controllers and a body, be provided with pressure transducer.Perhaps be provided with the body that is attached thereto in described housing rear end and constitute, described nib is arranged at housing foremost, and described optical lens is located at its inboard, is provided with the optics movable sensor at the rear side of optical lens; And at described procapsid and be provided with between the body of peripheral controllers and be provided with pressure transducer.Hand-held photoelectricity input pen makes the nib that is positioned at its front end touch object surfaces, and the starting contact pressure sensor makes switch connection, and the output useful signal is in the state of nib contactant surface to control circuit to show input pen, otherwise is vacant state.If in the time of will showing the feature of the line weight of input or handwritten form stroke, touch switch can and amplify the replacement of sampling analog to digital conversion circuit assembly with a pressure transducer, and the pressure of nib can be quantized and output to peripheral controllers.

As preferably, described light source is a light emitting diode, and its front end is provided with condenser, is provided with reflective mirror on one side; And near described pressure transducer, be provided with the body that resets.Wherein, described reflective mirror can be a level crossing, or prism; The described body that resets can be elastic body (layer) or other body that resets.Front end at this can be provided with a window, the optics movable sensor is housed thereafter, aligning anterior end of pen actual induction is converted into digital signal apart from relatively moving of interior object plane outputs to peripheral controllers, whether the output of this sensor and nib be unsettled irrelevant.

As preferably, the hypsokinesis of described body axis, and the angle between the axis of the optical aperture of described optics movable sensor is 20 °-40 °.In addition, described nib also can be fixed into one with described housing except telescopically is arranged on this photoelectricity input pen end.Be a side rather than the center that nib can be positioned at the handwriting front end, and the direction of this side has been represented both Y-axis forwards of screen surface coordinate of plane of orientation coordinate.

As preferably, described optical lens is fixed in the bottom of inner walls through screw regulator; Between described optics movable sensor and optical lens, be provided with elastic layer, which is provided with optical aperture.

As preferably, when described pressure transducer triggered, optical lens and the distance between body surface before the described optics movable sensor were 1.5mm-4.5mm.The present invention can be by reducing unthreaded hole, strengthen illumination or prolong focal length (object distance), even make it this photoelectricity input pen when far away apart from body surface, still can be clear, quickly and accurately with information typings such as literal or patterns, as preferably, the top of described body offers window, is provided with the infrared light-emitting diode that links to each other with the infrared light pulse signal generator in it; And be provided with the button power switch at the tail end of described body.

As preferably, the top of a described housing or a body is built-in with the wireless antenna that links to each other with the wireless signal generator; And be provided with the button power switch at the tail end of described body.Wireless data interface can adopt the various proven technique of present use, and agreement and device are typically the infrared interface technology, perhaps also can be the Radio Transmission Technology of bluetooth (Bluetooth) agreement.Be connected on the general-purpose interface of the computing machine that uses this input pen as independent module with the other end wireless data interface of wireless input pen swap data, perhaps be embedded in the computing machine.

Use battery to provide power supply for each circuit block in the wireless photoelectricity input pen.

Therefore, the present invention has rational in infrastructure, and is easy to use, and the handwriting mode input characters and the location of both available people's custom can arbitrarily be used in the bigger plane of optional scope again, also do not drag the characteristics such as inconvenience that cable connection brought.

Description of drawings

Accompanying drawing 1 is a kind of structure cut-open view of the present invention;

Accompanying drawing 2 is another kind of structure cut-open views of the present invention;

Accompanying drawing 3 is the third structure cut-open views of the present invention;

Accompanying drawing 4 is a kind of circuit theory diagrams of the present invention.

Embodiment

Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.

Embodiment 1: the structure of wireless input pen has shown the installation annexation that each parts is main as shown in Figure 1.Wherein: the 1-nib; The 2-pressure transducer can adopt reed contact microswitch, 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, it is little that the actuating length of switch and elastic force should be tried one's best, 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 above-mentioned two parts; 3-is wireless input pen shell; The synoptic diagram of 4-optics motion sensor, ready-made product can be used the ADNS-2620 optical mouse inductor of U.S. Aglent Technologies company, its inside comprises an image and obtains system (IAS), a digital signal processor (DSP), serial line interface with two pins, this optical sensor can absorb and handle image with auspicious speed p.s.s 2300, resolution is 400CPI, 8 pin DIP encapsulation, the optical aperture of this sensor is below integrated encapsulation, the counter-rotating that during present embodiment uses its pin all make progress is installed on the little switching circuit board, with the space under the increase sensor; The 5-optical lens; The 6-light source can adopt light emitting diode, the body surface that faces toward in order to the illumination optical sensor; The 7-condenser; The 8-catoptron also can use prism structure, and the light after light emitting diode is sent and focuses on projects the body surface that the optics movable sensor faces toward with proper angle, and a shell front end nib is other to be the window of opening for optical sensor; The 9-peripheral controllers has connected above-mentioned each sensor and the Data Transmission Controlling interface has been housed; The 10-circuit board is equipped with peripheral controllers (other device of circuit does not mark); The 11-infrared light-emitting diode radiate the form of data with the infrared ray pulse; The infrared ray window of opening on 12-shell; The 13-battery supply; The 14-power switch, the 15-body surface: the 16-screw, fine setting optical lens and sensor distance usefulness distribute around optical lens, only mark one among the figure, for this reason, can use resilient material to constitute optical aperture on the movable sensor.Usually, can optics movable sensor 4 other be provided with that light source 6 front ends are provided with condenser 7 and under its other housing 3 end be provided with catoptron 8; Front end at optics movable sensor 4 has elastic layer 20, which is provided with optical aperture 21, and makes one.By screw 16 optical lens 5 is regulated and is fixed in optical aperture 21 front ends of optics movable sensor 4 in the inboard of nib 1.Said structure also can integral body be made.For example, can be on a prism with catoptron 8 and condenser 7.

Embodiment 2: because movable nib 1 has shift motion when acting on the pen point pressure sensor, may adverse effect be arranged to the actual induction of the less movable sensor of the depth of field, the present invention also can adopt the fixing sleeve type structure of the relative sensor of nib: nib 1 only is a bossing of a shell 3 front ends, having fixedly, the shell front end of nib is equipped with optics movable sensor 4, its inside is provided with peripheral controllers 9 and circuit board 10, the body 31 that hand grips is placed in shell 3, can slide relatively vertically between the two, and limit sliding scales with the bayonet lock 17 of band reed, pen point pressure sensor 2 places the tail end of shell 3, its other touch-tone power switch 14 (referring to accompanying drawing 2) that is provided with.

Embodiment 3: described shell 3 also can adopt shorter structure as shown in Figure 3, optics movable sensor 4 and combination thereof only are equipped with in its inside, circuit board 10 and other device are in for a body 31 that grips usefulness, optics movable sensor chip pin is linked on the circuit board 10 in the body 31 by flexible cable or brush mode, wherein, nib 1 is made of one with shell 3, and pressure transducer 2 is fixed in the body 31, and joins with shell 3 tail end machineries.All the other numbering explanations of accompanying drawing 2 and accompanying drawing 3 are identical with accompanying drawing 1, behind the nib contactant surface 15, housing 3 is shunk in a body, cause pressure transducer 2 pressurized output signals, but this moment, optics movable sensor 4 no longer changed with the distance of body surface 15, this distance can be placed within the most effective field depth, also can be adjusted at effective field depth edge, to strengthen the actual induction distance of nib and body surface as far as possible.

No matter adopt which kind of structure, when the optics movable sensor with effective means sense object surface, be that the optical aperture central axis is when vertical with body surface, body is designed to and the body surface out of plumb, become about 30 ° of angles with the body surface perpendicular line, offset direction is opposite with the direction of nib disalignment.

A circuit theory of photoelectricity input pen as shown in Figure 4.Optics movable sensor 4 adopts the chip of ADNS-2620 model, this chip is the optical mouse sensor that Aglent Technologies company produces, it handles the body surface image that illuminates through light source 6 scioptics 7 optically focused, analyze surperficial mobile status, the result is exported by rs 232 serial interface signal SDIO.Peripheral controllers 9 is the band USB of CYPRESS company and the device of PS/2 interface (model is CY7C63743-PC), export after the protocol code of state with the data of optics movable sensor 4 output and pen point pressure sensor 2, after current drives, send signal by infrared light-emitting diode 11 by wireless transmission.This circuit has electricity-saving function, can reduce the working current of light source 6 when the optics movable sensor does not move induction by the control of " LED_CNTL " pin.Also marked the circuit signal of wireless interface receiving end in the accompanying drawing 4, wireless data outputs to controller IC 3 (using CY7C63723-PC) after infrared remote receiver amplifies reception, by USB port on it and compunication, the input that the input data of wireless like this input pen can be used as a USB mouse utilizes ready-made software to handle on computers, finish the location, operations such as mapping.

The photoelectricity input pen uses the course of work to be: make nib 1 end be close to body surface 15 certain distances when holding to begin to write, make optics movable sensor 4 the actual induction work (pass through suitable design as suitably reducing the diameter of optical sensor optical aperture, strengthen the emissive power of light source 6 (light emitting diode), fine setting optical lens 5 mainly is to reduce this distance to the distance of optics movable sensor 4, can lose some resolution, but effective depth of field of optical sensor is increased, nib sponson length enough in short-term distance of reaction can be wide enough so that nib does not need the contactant surface), this moment mobile wireless photoelectricity input pen, mobile message is responded to through the optics movable sensor, the state output of going up other function button switch with nib state and pen is passed to wave point by peripheral controllers after by the communication protocol coding together, send to receiving end input computing machine after interface circuit drives signal, software (comprises driver, operating system and application program) just can determine that the shift position of onscreen cursor and other have moved.When pressing nib 1 to body surface 15, the state that pen point pressure sensor 2 changes is received that by computing machine the information that the software binding site moves just can be with it as character stroke, and the input of pattern line or click choose action to handle.

Claims

1. photoelectricity input pen, comprise housing, and built-in peripheral controllers, it is characterized in that in described housing (3) or the outside is provided with pressure transducer (2), the shell end place is provided with light source (6) and optics movable sensor (4), the place ahead of optics movable sensor (4) is provided with optical lens (5), at the other nib (1) that is provided with of optics movable sensor (4), an end that is in enclosure interior at nib (1) is provided with the pressure transducer (2) that links to each other with peripheral controllers (9), the front end of described light source (6) is provided with condenser (7), and the side of condenser is provided with reflective mirror (8).

2. photoelectricity input pen according to claim 1 is characterized in that the cross-section center position of described housing (3) one ends is provided with optics movable sensor (4).

3. photoelectricity input pen according to claim 1, it is characterized in that the outer body (31) that is provided with of described housing (3), described nib (1) is arranged at housing foremost, described optical lens (5) is located at nib (1) inboard, and is provided with pressure transducer (2) between the rear end of the described housing that is provided with peripheral controllers (9) and a body (31).

4. photoelectricity input pen according to claim 1, it is characterized in that described housing (3) rear end is provided with a body (31) that is attached thereto and constitutes, described nib is arranged at housing foremost, described optical lens (5) is located at nib (1) inboard, and at described housing and be built-in with between the body (31) of peripheral controllers (9) and be provided with pressure transducer (2).

5. according to claim 1 or 2 or 3 or 4 described photoelectricity input pens, it is characterized in that described light source (6) is a light emitting diode.

6. according to claim 3 or 4 described photoelectricity input pens, it is characterized in that the hypsokinesis of described body axis.

7. according to claim 1 or 3 or 4 described photoelectricity input pens, it is characterized in that described nib (1) and described housing (3) are fixed into one.

8. according to claim 1 or 2 or 3 or 4 described photoelectricity input pens, it is characterized in that described optical lens (5) is fixed in the bottom of inner walls through screw regulator (16); Between described optics movable sensor (4) and optical lens (5), be provided with elastic layer (40), which is provided with optical aperture (41).

9. photoelectricity input pen according to claim 5 is characterized in that described optical lens (5) is fixed in the bottom of inner walls through screw regulator (16); Between described optics movable sensor (4) and optical lens (5), be provided with elastic layer (40), which is provided with optical aperture (41).

10. according to claim 1 or 2 or 3 or 4 described photoelectricity input pens, it is characterized in that the top of described body offers window (12), be provided with infrared light-emitting diode (11) in it; And be provided with button power switch (14) at the tail end of described body.

11., it is characterized in that the tail end of described body is provided with button power switch (14) according to claim 1 or 2 or 3 or 4 described photoelectricity input pens.