CN2279652Y

CN2279652Y - Pen type scanning instrument

Info

Publication number: CN2279652Y
Application number: CN 96245401
Authority: CN
Inventors: 王建全
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-26
Filing date: 1996-10-26
Publication date: 1998-04-22
Anticipated expiration: 2006-10-26

Abstract

The utility model relates to a pen type scanning instrument which comprises a light-sensitive pen, a calibration system, a D/A converting circuit, a control switching circuit and an encoder. The utility model is characterized in that the light-sensitive pen is provided with a pen-shaped housing, the front end of the housing is provided with a glass sheet which is in a certain inclination angle with the housing, the middle part of the light-sensitive pen is provided with a light source, the front end of the light-sensitive pen is provided with a converging lens and an imaging lens, the inner of the light-sensitive pen is provided with a charge-coupled device, and the calibration system is connected with the pen arm of the light-sensitive pen. The utility model has the advantages of high resolution, low cost and free operation, besides, the utility model can input a specified paragraph and one row of letters, and therefore, the utility model is an ideal input tool for computers.

Description

Pen-touched tablet

The utility model relates to a kind of pen-touched tablet.

For a long time, the various input methods that China's Chinese character input relies on, or efficient is low or grasp difficulty, must spend the plenty of time learning and memory.The input of print hand writing more and more relies on scanister to carry out at present, now uses to be falt bed scanner and hand-held scanner more widely, its sweep velocity is higher, but whole scanning of palpus, and can not scan thick book, for the one piece of article that scans on the book must be taken the bookbinding of book apart, it is loaded down with trivial details to work, lose more than gain, for only sweeping one section or a few row, this just apparent little convenience of anchor instrument of sweeping, and this class scanner is on the high side, is difficult to promote.

The purpose of this utility model is to provide a kind of resolution height, and cost is low, small and exquisite, power saving, portable, but complete free operant, can be at a certain section, the pen-touched tablet that a certain style of writing word is imported and the size of literal is not limit, the position is not limit.

The purpose of this utility model is realized by following mode:

The utility model comprises the sensitization pen, scaling system, D/A converting circuit, the control transformation circuit, scrambler, it is characterized in that the sensitization pen has the shell of a pen type, its front end is provided with one and is the glass sheet at certain inclination angle with shell, a light source is housed at the middle part of pen, corresponding with light source is provided with a collector lens at anterior end of pen, the light that these lens can send light source focuses on paper, front end at pen also is provided with an imaging len simultaneously, what cooperate with imaging len in the inside of pen is equipped with a charge-coupled image sensor, and charge-coupled image sensor is sent into the control transformation circuit after can being converted to electric signal by the light signal that imaging len transmits; The penholder of scaling system and sensitization pen links, measure sensitization pen position on paper by this system, and signal sent into scrambler, at last with the control transformation circuit, analog electrical signal after the coder processes is sent into the D/A converting circuit that is contained on the interface board for computers, import computing machine after by D/A converting circuit analog electrical signal being converted into digital electric signal, computing machine is finished work such as calculating, identification, editing and processing under the cooperation of assistant software.

The utility model has the advantages that the resolution height, cost is low, but free operant, and can at concrete paragraph and a certain style of writing word is imported and the big or small position of literal is not limit.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the stereographic map of grating wheel;

Fig. 3 is a circuit block diagram of the present utility model.

With reference to accompanying drawing, the utility model comprises sensitization pen [10], scaling system [1], D/A converting circuit [25], control transformation circuit [20], scrambler [24], it is characterized in that sensitization pen [10] has the shell of a pen type, its front end is provided with one and is the glass sheet [14] at certain inclination angle with shell, the effect of glass sheet [14] is to push down the literal that is scanned, and make pen [10] keep identical distance with paper, simultaneously can make the user can clearly see the literal that is scanning again, at the middle part of pen [10] light source [11] is housed, light source [11] adopts cylindrical tungsten lamp, and laterally install, the front end at pen [10] corresponding with light source [11] is provided with a collector lens [12], the light that it can send light source [11] focuses on paper, front end at pen [10] also is provided with an imaging len [15] simultaneously, what cooperate with imaging len [15] in the inside of pen [10] is equipped with a charge-coupled image sensor [13], charge-coupled image sensor [13] adopts the CCD system, and this CCD system [13] sends into control transformation circuit [20] after the light signal that is transmitted by imaging len [15] can being converted to electric signal; Scaling system [1] links with the penholder of sensitization pen [10], measure sensitization pen [10] position on paper by this system, scaling system [1] adopts the pole formula, constitute by pedestal [2], link rod [5], link rod [8], link rod [5] is connected by axle with link rod [8], and can be relative make lateral rotation, one cover angle measurement mechanism is housed between link rod [5] and link rod [8], and this mechanism is by gear wheel [21], pinion wheel [22], with the coaxial grating wheel [7] of pinion wheel [22] and be located at light emitting diode 6, photodiode 23 formations of grating wheel [7] both sides.Similarly, the identical angle measurement mechanism of a cover is housed in pedestal [2], this mechanism is by gear wheel [4], pinion wheel [3], with the coaxial grating wheel [17] of pinion wheel [3] and be located at light emitting diode [19], photodiode [18] formation of grating wheel [17] both sides.Control transformation circuit [20] and scrambler [24] are done to be contained in the pedestal [2] on a circuit board, D/A converting circuit [25] can insert in the expanded slot of computer, a foundary weight [16] also is housed in pedestal [2], an axle [9] is housed on link rod [8], can make the leading portion of link rod [8] together with sensitization pen [10] to having appeared on the stage, start to write with the first stroke of a Chinese character that makes things convenient for sensitization pen [10], a back-moving spring also is housed on axle [9].

When the utility model pen-touched tablet scanning delegation literal, the light that cylindrical tungsten lamp [11] sends illuminates literal by collector lens [12], paper with light refraction after, by imaging len [15] light focusing is gone up imaging in CCD system [13], CCD system [13] is converted into electric signal to light signal, send into control transformation circuit [20], simultaneously, when sensitization pen [10] is mobile on paper, make link rod [8] and link rod [5] rotate thereupon, be located at the angle measurement mechanism between link rod [8] and link rod [5] and be located at the interior angle measurement mechanism of pedestal [2], the electric signal of the angle that link rod [8] and link rod [5] are turned over is sent into scrambler [24] and is handled, analog electrical signal after the processing is sent into D/A converting circuit [25] and is converted to digital electric signal input computing machine, and computing machine is finished calculating under the cooperation of assistant software, identification, work such as editing and processing.During for bigger literal of input or figure, sensitization pen [10] can scan the back by the row piecemeal be edited by computing machine.

Claims

1, a kind of pen-touched tablet, comprise sensitization pen, scaling system, D/A converting circuit, control transformation circuit, scrambler, it is characterized in that the sensitization pen has the shell of a pen type, its front end is provided with one and is the glass sheet at certain inclination angle with shell, a light source is housed at the middle part of pen, the front end at pen corresponding with light source is provided with a collector lens, front end at pen also is provided with an imaging len simultaneously, what cooperate with imaging len in the inside of pen is equipped with a charge-coupled image sensor, and the penholder of scaling system and sensitization pen links.

2, pen-touched tablet according to claim 1, it is characterized in that scaling system is made of pedestal and two link rods, two link rods are connected by axle, and can be relative make lateral rotation, one cover side angle mechanism is housed between two link rods, the identical angle measurement mechanism of a nested structure is housed in pedestal:

3, pen-touched tablet according to claim 2 is characterized in that angle measurement mechanism is by gear wheel, pinion wheel, constitute with coaxial grating wheel of pinion wheel and the light emitting diode, the photodiode that are located at the grating wheel both sides.

4, pen-touched tablet according to claim 1 is characterized in that charge-coupled image sensor adopts the CCD system.