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1. 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.

2. 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.

3. 发明专利

JPS6298861A ORIGINAL READER 失效
公开(公告)号：JPS6298861A
公开(公告)日：1987-05-08
申请号：JP23804785
申请日：1985-10-24
申请人： MATSUSHITA GRAPHIC COMMUNIC , NIPPON TELEGRAPH & TELEPHONE
发明人： AKIMOTO MASAO , HANAOKA HIDEYUKI , OOTA HISAO
IPC分类号： H04N1/401 , H04N1/04 , H04N1/10 , H04N1/107 , H04N1/19 , H04N1/40
摘要： PURPOSE:To improve the sensitivity variance accuracy of an image sensor by coating a glass plate with a paint being the white reference of the image sensor at the time of reading an original so as to eliminate completely an uneven float on a white reference surface. CONSTITUTION:The image sensor 11 reading the original 15 placed on the glass plate 12 being an original platen is provided, and moves within a range from a left-hand end part A to a right-hand end part B on the glass plate 12. Due to its movement the original 15 is sub-scanned. The white paint 13 is coated on the left-hand end part A on the glass plate 12 to construct the white reference surface. Prior to scanning the original, the image sensor 11 scans the white reference surface 13 directly coated on the glass plate 12. The output of the image sensor 11 is amplified by an amplifier 17, and quantized into l-bits by an A/D converter 18. The quantized signal is inputted to a shading correction part 19, and corrected by referring to the output when the white reference surface 13 previously stored in the shading correction part 19 is scanned.

4. 发明专利

JPS5840856A ARRAY FOR PHOTOSENSOR 失效
公开(公告)号：JPS5840856A
公开(公告)日：1983-03-09
申请号：JP13773081
申请日：1981-09-03
申请人： NIPPON TELEGRAPH & TELEPHONE , MATSUSHITA ELECTRIC IND CO LTD , MATSUSHITA GRAPHIC COMMUNIC
发明人： TAJIRI TETSUO , OOTA HISAO , HATATE YOSHIO , TANIGUCHI HIROMITSU , YOSHIGAMI NOBORU , YAMASHITA TOSHIO , OONO MASARU
IPC分类号： H01L27/146
摘要： PURPOSE:To obtain the long-sized photosensor array having high resolution by drawing out separate electrode in the same order of each block by a film lead when a manuscript is lit up from a lower section and reflected light is received by the row of the islands of photoconductors. CONSTITUTION:Light shielding films 14 in Cr are evaporated to a transparent glass plate 13, a window 15 is bored, and the surface is coated with a transparent glass film 16. The islands 19 of the photoconductors to which CdS and CdSe to which Cu is added are laminated are formed, and spaces with the window 15 are made one tenth or shorter of the spaces of the islands. The whole is activated at approximately 500 deg.C in an inert gas, and NiCr-Au is shaped to the partial surfaces exposed of the islands 19 while using a common electrode 18 and the separate electrode 17 as masks. The film lead 20 is mounted at a predetermined position, the second common electrode 22 and the L-shaped separate electrode 17 are thermocompression-bonded at every block through an opening 21 and matrix-wired, a sheet glass 26 is bonded 25, and a transparent protective layer with thickness smaller than the spaces of the islands 19 is formed. A base 23 is attached for reinforcing the substrate and taking materials, a groove 24 for introducing light is shaped and the array is completed.

5. 发明专利

JPS62101181A COLOR PICTURE PROCESSOR 失效
公开(公告)号：JPS62101181A
公开(公告)日：1987-05-11
申请号：JP24107685
申请日：1985-10-28
申请人： MATSUSHITA GRAPHIC COMMUNIC , NIPPON TELEGRAPH & TELEPHONE
发明人： HANAOKA HIDEYUKI , OOTA HISAO
IPC分类号： H04N1/401 , H04N1/028 , H04N1/40 , H04N1/46 , H04N1/48 , H04N1/60
摘要： PURPOSE:To obtain a correct picture signal by calculating a correction coefficient based on the picture signal obtained by scanning a color sample before an original is scanned and storing this calculated value in a storage means provided in a color correcting circuit and applying the stored value to picture information obtained by scanning the original to perform correction. CONSTITUTION:Before an original 1 is scanned, a color sample 4 is scanned by an image sensor 6 and output signals of R, G, and B of R, G, and B patch parts are taken into a CPU 26 to calculate a matrix coefficient as the correction coefficient. The calculated value is outputted to a RAM 25 through a three-state buffer 27 and is stored there. Next, the original 1 is scanned while moving the image sensor 6 in the subscanning direction, and the obtained picture signal is subjected to shading distortion correction and gamma characteristic correction by a corrector and a gamma corrector 10, and optimum color correcting operation is performed successively by matrix operation between picture information and the correction coefficient to output R, G, and B signals. Thus, the correct picture signal is obtained independently of the change with the lapse of time of a light source or the image sensor.

6. 发明专利

JPS62100076A ORIGINAL READING METHOD 失效
公开(公告)号：JPS62100076A
公开(公告)日：1987-05-09
申请号：JP23986485
申请日：1985-10-25
申请人： MATSUSHITA GRAPHIC COMMUNIC , NIPPON TELEGRAPH & TELEPHONE
发明人： HANAOKA HIDEYUKI , OOTA HISAO
IPC分类号： H04N1/403 , G06K9/38 , G06T1/00 , H04N1/40
摘要： PURPOSE:To eliminate deterioration in resolution even when an original is dislocated from the prescribed position more or less by setting a moving part having a lens array and an image sensor at two places, reading for each line, and making one reading signal binarize by using other data smaller in changing quantity as a threshold. CONSTITUTION:With the illuminating light of a light source 3 held at a contact type image sensor main body part 51, an original 1 is irradiated. The reflecting light of the original 1 is received to a lens array 5 and an image sensor 4 equipped with a moving part 52 to be able to displace to the main body part 51. The moving part 52 is set at different places, in respective states, the same line of the original 1 is successively read, and the reading signal of respective states to the same line of the original 1 is quantized by a quantizing means 12. These quantized signals are compared 70, the signal smaller in changing quantity is made into the threshold signal, the signal larger in changing quantity is made binary 17 based upon the threshold signal and the original is read.

7. 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

8. 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.

9. 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.

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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