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1. 发明专利

JPS59229966A OPTICAL READER 失效
公开(公告)号：JPS59229966A
公开(公告)日：1984-12-24
申请号：JP10413483
申请日：1983-06-13
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： UMAJI TOORU , IZAWA YUUJI , EBII EIZOU , YAMAMOTO HIDEAKI , TSUKADA TOSHIHISA , OOTA HISAO
IPC分类号： H04N1/028 , G06K9/20 , G06T1/00 , H01L27/146 , H04N1/40 , H04N5/335 , H04N5/365 , H04N5/374 , H04N5/376 , H04N5/378 , H01L27/14
摘要： PURPOSE:To obtain an optical reader which does not exert any influence of the parasitic capacity which is parasitic on a photodetecting element right before a charge is read out of the photodetecting element by discharging the charge accumulated to the parasitic capacity to a photodetecting element driving circuit and a signal reading circuit. CONSTITUTION:When the column scanning pulse Xn-1 of a column scanning circuit goes up to a high level while the row scanning pulse Yj-1 of a row scanning circuit is at the high level, a signal readout mode (time t1-t3) is obtained. The photodetecting element Xn-1 is connected to the signal reading circuit side in said mode between (time t1 and t2), but a switch 34 is closed to the grounding side and switches 32 and 24 are closed. Therefore, a voltage Y'j-1 applied to the cathode of the separate diode of the photodetecting element is 0 and the separate diode is cut off. Consequently, all the bias charge QB1 accumulated in the parasitic capacity parasitic on the Xn-1 flows to the ground.

2. 发明专利

JPS58172057A OPTICAL READER 失效
公开(公告)号：JPS58172057A
公开(公告)日：1983-10-08
申请号：JP5379982
申请日：1982-04-02
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： UMAJI TOORU , IZAWA YUUJI , EBII EIZOU , TSUKADA TOSHIHISA , YAMAMOTO HIDEAKI , OOTA HISAO
IPC分类号： H04N1/028 , G06K9/20 , G06T1/00 , H04N1/19 , H04N1/193 , H04N1/40
摘要： PURPOSE:To speed up a readout scan on every picture element without decreasing sensitivity, by providing readout parts for respective blocks with charge integrators which correspond to photodetecting elements in blocks and operate simultaneously, and scanning and reading the output of each integrator by a column controlling signal. CONSTITUTION:For the row scan controlling circuit 13 of an optical reader, blocks 10-1-10-n of photodetecting element groups are arrayed and respective blocks are selected with a row scanning switch 19. Writings 14-1-14-m connected in common to said blocks 10-1-10-n are connected to readout parts and a column scan controlling circuit 15. This circuit 15 is provided with charge integrators of operational amplifiers 26-1-26-m corresponding to respective photodiodes of the blocks 10-1-10-n. The outputs of the amplifiers 26-1-26-m are held by sample holding circuits 29-1-29-m and column scan switches 31-1- 31-m are controlled by the output of a column scan driving signal generating circuit 30 and a scan output signal is outputted from an output terminal 17, speeding up a readout scan on every picture element.

3. 发明专利

JPS6053068A SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS6053068A
公开(公告)日：1985-03-26
申请号：JP16052083
申请日：1983-09-02
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： UMAJI TOORU , SEKI KOUICHI , TSUKADA TOSHIHISA , OOTA HISAO
IPC分类号： H01L23/60 , H02H9/04
摘要： PURPOSE:To lower the peak value of voltage applied to a photodiode, and to increase the withstanding voltage of a protective circuit largely by directly coupling the protective circuit to each input-output terminal and connecting a resistor between the protective circuit and an element proper. CONSTITUTION:Time constants on the rise and fall of voltage applied to a photodiode 21 are represented by tauf=Ca.Rp and taus=C.nRs. Since the time constant taus on the fall does not depend upon the value of a protective resistor Rp16, the peak value of voltage applied to the photodiode 21 by static electricity can be reduced by increasing the value of the Rp16, thus largely improving electrostatic withstanding voltage. When the area of a junction in a protective diode is increased or the thickness of an I layer is thinned, nRs lowers, and taus is also reduced, thus improving withstanding voltage. The capacitance Cd/n of a protective diode row also increases at that time, but the speed of responce of an element does not lower because these diodes are coupled directly with input-output terminals without through the protective resistor Rp16.

4. 发明专利

JPS59224182A THIN FILM SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS59224182A
公开(公告)日：1984-12-17
申请号：JP9778483
申请日：1983-06-03
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： SEKI KOUICHI , YAMAMOTO HIDEAKI , TANAKA TOSHIHIRO , SASANO AKIRA , TSUKADA TOSHIHISA , OOTA HISAO
IPC分类号： H01L31/10 , H01L29/861 , H01L31/105 , H01L29/91
摘要： PURPOSE:To implement the improvement of heat resistance without deteriorating electric characteristics, by providing a Cr layer in contact with an amorphous silicon layer, and contacting the amorphous silicon layer and a conductive layer. CONSTITUTION:A Cr electrode 2 is formed on a glass substrate 1. An amorphous hydrogenated silicon layer (N layer) 3 including P is formed thereon by using a gas, wherein PH3 gas and SiH4 gas are mixed. Then an amorphous hydrogenated silicon (I layer) 4 is formed only by using the SiH4 gas. An amorphous hydrogenated silicon layer (P layer) 5 including B is further formed by using a gas, wherein B2H6 gas and the SiH4 gas are mixed. Cr13 is formed thereon. Al 14 is further formed thereon.

5. 发明专利

JPS58125177A INTEGRATING CIRCUIT 失效
公开(公告)号：JPS58125177A
公开(公告)日：1983-07-26
申请号：JP591782
申请日：1982-01-20
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： IZAWA YUUJI , UMAJI TOORU , EBII EIZOU , TSUKADA TOSHIHISA , YAMAMOTO HIDEAKI , MATSUI KAZUMASA , OOTA HISAO
IPC分类号： G06K7/00 , G06G7/186
摘要： PURPOSE:To constitute a titled circuit so that it is not influenced by offset voltage and accuracy of a feedback capacity, by accumulating such charge as negates input offset voltage in advance in the feedback capacity, and discharging this charge in order to a suceeding integrator. CONSTITUTION:At first, a control signal generating circuit 39 is operated so that switches 35-1, 35-2 and 38 between preceding and succeeding inverted input terminals and output terminals, and only switches 33-1, 33-2 between preceding feedback capacities 31-1, 31-2 and the succeeding inverted input terminals become a connected state, and input offset voltage of each leading operational amplifiers 30-1, 30-2, and succeeding input offset voltage are applied to the preceding feedback capacities 31-1, 31-2. When the accumulation time has ended, all the switches are set to an off-state once, and the switches 35-1, 35-2 are operated so that the inverted input terminal and the output terminal of the preceding operational amplifiers 30-1, 30-2 become a conducting state. Subsequently, the switches 33-1, 33-2 are controlled so that the charge accumulated in the preceding feedback capacities 31-1, 31-2 is selectively discharged to the succeeding integrator by use of the succeeding switch 38.

6. 发明专利

JPS604365A OPTICAL READER 失效
公开(公告)号：JPS604365A
公开(公告)日：1985-01-10
申请号：JP11082783
申请日：1983-06-22
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： IZAWA YUUJI , TAKIZAWA MASAAKI , UMAJI TOORU , EBII EIZOU , TSUKADA TOSHIHISA , OOTA HISAO
IPC分类号： H04N1/028 , G06T1/00 , H04N1/193 , G06K9/20
摘要： PURPOSE:To make high-speed reading without giving any burdens to a photoreceptor element and signal processing circuit even with an optical reader having numerous main scanning picture elements, by performing empty reading operations on plural picture elements in one lot. CONSTITUTION:Bipolar analog switches 30-33 and 34-37 are connected with each common electrode and individual electrode and the analog switches 30-33 are connected with a target voltage source 23 and the other analog switches 34-37 are connected with a ground bias voltage source 24. These switches 30- 33 and 34-37 are controlled by a common electrode scanning circuit 16 and individual electrode scanning circuit 17, respectively, and electric charges accumulated for each picture element are voltage-converted by means of an integrator 11 and outputted through a sample holding circuit 12. At this time, empty reading operations are simultaneously performed on all individual electrodes connected to each common electrode after reading out operations are successively performed on all picture elements connected to the common electrodes, and thus, the waiting time is eliminated and an effective minimum reading time is shortened.

7. 发明专利

JPS6298866A ORIGINAL READING METHOD 失效
公开(公告)号：JPS6298866A
公开(公告)日：1987-05-08
申请号：JP23804385
申请日：1985-10-24
申请人： MATSUSHITA GRAPHIC COMMUNIC , NIPPON TELEGRAPH & TELEPHONE
发明人： HANAOKA HIDEYUKI , OOTA HISAO
IPC分类号： H04N1/19 , H04N1/04 , H04N1/10 , H04N1/107
摘要： PURPOSE:To prevent the deterioration in resolution even if an original deviates from the prescribed position by placing movable parts at plural different positions and deciding the number of changing times of a binarization signal, which can be obtained by reading the same line on the original. CONSTITUTION:An image sensor 4 obtains a read signal D1 with the movable part 52 floating by a distance l1 and a read signal D2 in parallel with a main body part 51. The read signals D1 and D2 are converted into binalization signals E1 and E2 by a comparator 12, stored in the 1st and 2nd RAMs 13 and 14, respectively, and inputted to an up-down counter 15. It counts up how many times the binarization signal E1 changes and counts down how many times the binarization signal E2 changes. If said result is positive, it means that the binarization signal E1 changes more often than the signal E2 and the original is better focused, and vice versa of if the result is negative.

8. 发明专利

JPS6298860A IMAGE PROCESSOR 失效
公开(公告)号：JPS6298860A
公开(公告)日：1987-05-08
申请号：JP23804685
申请日：1985-10-24
申请人： MATSUSHITA GRAPHIC COMMUNIC , NIPPON TELEGRAPH & TELEPHONE
发明人： HANAOKA HIDEYUKI , OOTA HISAO
IPC分类号： H04N1/04
摘要： PURPOSE:To adjust the level of a picture signal irrespective of its frequency by controlling the lighting time of a light source based on the peak level of the picture signal at every line. CONSTITUTION:Based on a basic clock signal A a line interval is generated by a counter 1 and a decoder 2 to obtain a pulse signal C at a fixed interval. The pulse signal C drives a charge accumulation type image sensor 4 through a drive circuit 3. The light source 14 irradiates an original 15, and the image sensor 4 scans the reflected light. After the picture signal M of the original obtained by scanning is amplified by an operational amplifier 5, it is inputted to a quantizer 6. The input signal is quantized by N-bits, outputted to the outside as an N-bit picture signal B, and simultaneously outputted to a deciding circuit 7 as a quantized signal H. The deciding circuit 7 compares the quantized signal H with a reference level L, and the counted value of the lighting up timing is adjusted in accordance with the difference to increase or decrease the quantity of light.

9. 发明专利

JPS6041505B2 失效
公开(公告)号：JPS6041505B2
公开(公告)日：1985-09-17
申请号：JP14195180
申请日：1980-10-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OOTA HISAO
IPC分类号： G03B27/54 , G03G15/04 , H04N1/04

10. 发明专利

JPS5821973A COLOR ORIGINAL READER 失效
公开(公告)号：JPS5821973A
公开(公告)日：1983-02-09
申请号：JP12072681
申请日：1981-08-03
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OOTA HISAO , TAJIRI TETSUO
IPC分类号： H04N1/028 , H04N1/04 , H04N1/46 , H04N1/48
摘要： PURPOSE:To realize the miniaturization and a simple structure for the titled reader, by using a tight sensor and obtaining a color resolving signal by switching light sources. CONSTITUTION:A color original 1 is carried by an original feed roller 2 toward the arrow mark, and the secondary scanning is carried out. A tight sensor 7 is set tight to the original 1 or with a minute distance, and then the original 1 is irradiated from a composite LED array light source 3 and through the back side of the original. The light of the source 3 irradiates the original 1 attached tight to a transparent protecting layer 73 or set close to the layer 73 through an illuminating transparent window 75 drilled to a light shielding layer 72 of the sensor 7. The light of the source 3 is reflected by the original 1 and then received at a photoelectric transducer element train 74 consisting of many photoelectric transducers arranged in the main scanning direction vertical to the surface of the original.

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