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31. 发明专利

JPS5795783A SOLID-STATE IMAGE PICKUP DEVICE 失效
公开(公告)号：JPS5795783A
公开(公告)日：1982-06-14
申请号：JP16286681
申请日：1981-10-14
申请人： HITACHI LTD
发明人： AKIYAMA TOSHIYUKI , SATOU KAZUHIRO
IPC分类号： H01L27/146 , H04N5/335 , H04N5/359 , H04N5/369 , H04N5/374 , H04N9/04 , H04N9/07
摘要： PURPOSE:To pick up excessive charges without provision of a gate voltage control line and an excessive charge pickup line newly, by elaborating a plan for the connection of output terminals and control terminals of an excessive charge pickup switch. CONSTITUTION:Excessive charge pickup MOSFETs 151-15n are connected to a light emitting diode 1, a gate voltage of the FET15i is controlled with a DC video voltage applied to a horizontal output line 10, and an excessive charge is picked up through a line connected to the gate of a vertical switch MOSFET9i. Thus, the excessive charge produced in a diode can be picked up through the FET15i having lower wall height than that of an FET9i. The excessive charge passing through the FET15i can be picked up through a line 20 connected to the gate of the FET9i. This excessive charge can not give any adverse effect on a vertical shift register 3.

32. 发明专利

JPS5738073A Solid-state image sensor 失效
标题翻译：固态图像传感器
公开(公告)号：JPS5738073A
公开(公告)日：1982-03-02
申请号：JP11351180
申请日：1980-08-20
申请人： Hitachi Ltd
发明人： UMAJI TOORU , TSUKADA TOSHIHISA , KOIKE NORIO , AKIYAMA TOSHIYUKI , TAKEMOTO KAYAO , SHIMADA SHIGERU , KUSANO CHIYUUSHIROU , OOBA SHINYA , MATSUMARU HARUO
IPC分类号： H01L27/14 , H01L21/8234 , H01L23/62 , H01L23/64 , H01L27/02 , H01L27/06 , H01L27/088 , H01L27/092 , H01L27/146 , H01L29/78 , H01L31/08 , H02H7/20 , H03F1/42 , H03F1/52 , H04N5/335 , H04N5/341 , H04N5/359 , H04N5/369 , H04N5/374
CPC分类号： H01L23/62 , H01L23/647 , H01L27/0251 , H01L27/14654 , H01L2924/0002 , H04N5/3592 , H04N5/363 , H04N5/374 , H01L2924/00
摘要： PURPOSE: To improve the S/N of an image sensor and to prevent a blooming phenomenon, by connecting an amplifying MOSFET between a photo diode constituting a photo electric conversion element and an MOSFET and amplifying the signal of the photo diode.
CONSTITUTION: In a photo electric conversion element constituted by connecting the cathode of a photo diode with the source of an MOSFET, a gate of an MOSFET 20 for amplification is connected to the cathode of a photo diode 1, and the source of an FET20 is connected to the source of an MOSFET2. Thus, the signal of a diode 1 is amplified at the FET20, the S/N can be improved with a multiple against noise produced from a switching MOSFET3 connected to a horizontal scanning circuit 9 and a preamplifier connected to an output termnal 7 of an image sensor. Since the source of the FET2 and the cathode of the photo diode 1 are separated through a gate oxide film of the FET20, the conduction of transversal parasitic transistor of the FET2 is blocked to prevent the blooming phenomenon.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过在构成光电转换元件的光电二极管和MOSFET之间连接放大MOSFET并放大光电二极管的信号，来改善图像传感器的S / N并防止起霜现象。构成：在通过将光电二极管的阴极与MOSFET的源极连接而构成的光电转换元件中，用于放大的MOSFET 20的栅极连接到光电二极管1的阴极，FET20的源极连接到MOSFET2的源极。因此，二极管1的信号在FET20处被放大，可以通过连接到连接到水平扫描电路9的开关MOSFET 3和连接到图像的输出端7的前置放大器产生的多个抗噪声来改善S / N 传感器。由于FET2的源极和光电二极管1的阴极通过FET20的栅极氧化膜分离，FET2的横向寄生晶体管的导通被阻挡以防止起霜现象。

33. 发明专利

JPS5544226A SOLIDSTATE PICK UP UNIT 失效
公开(公告)号：JPS5544226A
公开(公告)日：1980-03-28
申请号：JP11650178
申请日：1978-09-25
申请人： HITACHI LTD
发明人： IZUMIDA MORIJI , UMEMOTO MASUO , SATOU KAZUHIRO , AKIYAMA TOSHIYUKI , TAKAHASHI KENJI , NAGAHARA SHIYUUSAKU
IPC分类号： H01L27/146 , H04N5/335 , H04N5/365 , H04N5/374 , H04N5/378
摘要： PURPOSE:To reject the fixed pattern noise, by holding the noise signal with equal amount of the spike noise included in photo signal, and photo signal itself with the sampling hold means respectively, and by addition and subtraction of the signal held on the both means. CONSTITUTION:The output signal of the pick up element 11 is inputted to the two sets of sample hold circuits 13 and 14 via the preamplifier 12 and sample-held(S/H) at sampling pulse. The output signal of the circuit 13 is delayed at the delay circuit 15 for the ON time of the horizontal switch 5 in the signal readout circuit and the drive circuit of the solidstate pick up element, added to the output of the circuit 14 at the addition circuit 16, and the added output is outputted to the signal processing circuit 17. Since the spike noise is symmetrical to the average level, almost no spike noise is included in the added output to remarkably reduce the fixed pattern noise. The sample pulse of the S/H circuits 13 and 14 can easily be formed with the monostable multivibrators 18, 19, and 20 by taking the horizontal clock pulse as reference.

34. 发明专利

JPS5427311A SOLID STATE PICKUP ELEMENT 失效
公开(公告)号：JPS5427311A
公开(公告)日：1979-03-01
申请号：JP9136277
申请日：1977-08-01
申请人： HITACHI LTD
发明人： KOIKE NORIO , TAKEMOTO KAYAO , AKIYAMA TOSHIYUKI , ANDOU HARUHISA , OOBA SHINYA , HORIUCHI KATSUTADA , KUBO SEIJI
IPC分类号： H01L27/088 , H01L27/146 , H04N5/335 , H04N5/341 , H04N5/359 , H04N5/372 , H04N5/374
摘要： PURPOSE:To enhance the S/N greatly for the device by integrating the photoelectric conversion element to one of the second conduction-type impurity layer and the scanning circuit to another layer respectively with application of the prescribed voltage to the electrode of each impurity layer.

35. 发明专利

JPH04317209A DIGITAL FILTER CIRCUIT 失效
公开(公告)号：JPH04317209A
公开(公告)日：1992-11-09
申请号：JP8502191
申请日：1991-04-17
申请人： HITACHI LTD
发明人： AKIYAMA TOSHIYUKI
IPC分类号： H04N9/64 , H03H17/02
摘要： PURPOSE:To reduce power consumption by using a value stored in a buffer circuit for a filter operation without directly reading the values to be repeatedly used among the values stored in a storage circuit such as a video signal, etc., out of the storage circuit. CONSTITUTION:In a control circuit 36' within a coefficient value storage circuit 24, a new common address number obtained by a common number generation circuit 30 is compared with the common address number designated in a previous operation which has already been stored in the control circuit 36'. When they are different from each other, a new pair of coefficient values are read out of and outputted from the storage circuit 24 and stored n a coefficient buffer circuit 38' composed of a flip-flop circuit, etc. When they are coincident with each other, the values are not read out of the storage circuit 24 and the pair of coefficient values already stored in the buffer circuit 38' are outputted with a signal from the control circuit 36'. Then the new common address number replacing the common address number designated in the previous operation which has already been stored in the control circuit 36' is stored.

36. 发明专利

JPH04186976A MOTION CORRESPONDENCE OUTLINE COMPENSATING CIRCUIT 失效
公开(公告)号：JPH04186976A
公开(公告)日：1992-07-03
申请号：JP31400390
申请日：1990-11-21
申请人： HITACHI LTD
发明人： AKIYAMA TOSHIYUKI
IPC分类号： H04N5/208 , H04N7/00 , H04N7/015
摘要： PURPOSE:To improve the motion resolution and to obtain a satisfactory video signal by providing a motion direction arithmetic circuit for calculating the direction of the motion of the image concerned in a video screen and magnitude of the motion against the direction concerned from the motion amount obtained by a motion amount detecting circuit, and a compensation amount determining circuit for determining the compensation amount in accordance with values of the motion direction concerned and the magnitude of the motion concerned, etc. CONSTITUTION:An inputted video signal, first of all, is inputted to a video signal storage circuit 21, and stored successively therein. Also, simultaneously, it is inputted to a motion amount detecting circuit 10, and the motion amount of an object to be photographed, for instance, a component value in its horizontal direction and vertical direction is detected. In a motion direction arithmetic circuit 11, this detected value is used, a value for showing magnitude of the motion and its direction is derived and outputted. Five video signal values Q1, Q2,..., Q5 which are read out are inputted temporarily to a sequence changing circuit 33, and a products sum arithmetic circuit 32 performs a products sum operation to this video signal value whose sequence is changed and a coefficient value, and outputs it as a video signal value subjected to outline compensation to a picture element point.

37. 发明专利

JPH04150594A INTERPOLATION ARITHMETIC CIRCUIT FOR VIDEO SIGNAL 失效
公开(公告)号：JPH04150594A
公开(公告)日：1992-05-25
申请号：JP27330690
申请日：1990-10-15
申请人： HITACHI LTD
发明人： AKIYAMA TOSHIYUKI
IPC分类号： H04N9/093
摘要： PURPOSE:To obtain a satisfactory image without generating deviation in color balance even in correction for resist shift by applying, an interpolation arithmetic operation by using a specific coefficient value. CONSTITUTION:The video signal value (interpolation video signal value) of a remarked point not locating on a picture element point in a video signal consisting of the picture element point arranged in two-dimensional shape in horizontal and vertical directions is found by applying the arithmetic operation of equation Sa,o=k1,1XS'1,1+...+k2,3XS '2,3+...+kM,NXS'M,N in which the video signal values S'1,1..., S'M,N of the picture element point neighboring to the remarked point is multiplied by coefficient values k1,1,..., kM,N decided by the quantity of shift from the picture element point of the remarked point. At this time, arithmetic relational expression ki,j 1 which satisfied a condition represented in equation I is used. In equation I, G is constant value (oridinarily, it is 1) not depending on the quantity of shift. Therefore, an amplitude factor for the video signal value after interpolation can be always set at almost an unmagnified value in spite of the quantity of shift from the picture element point of the remarked point. Thereby, the satisfactory image without generating color deviation can be obtained even when it is used in the correction of resist shift.

38. 发明专利

JPH043594A SIGNAL INTERPOLATION DEVICE 失效
公开(公告)号：JPH043594A
公开(公告)日：1992-01-08
申请号：JP10300090
申请日：1990-04-20
申请人： HITACHI LTD
发明人： OZAWA NAOKI , TAKAHASHI KENJI , AKIYAMA TOSHIYUKI , MIMURA ITARU , MATSUMOTO TAKAHIRO
IPC分类号： H04N5/335 , H04N5/367 , H04N5/378 , H04N7/015 , H04N19/00 , H04N19/132 , H04N19/136 , H04N19/14 , H04N19/182 , H04N19/423 , H04N19/59 , H04N19/80 , H04N19/85 , H04N7/13 , H04N7/00
摘要： PURPOSE:To attain interpolation not causing a false pseudo at a border of a subject by correcting signals of adjacent points according to a coefficient signal obtained from both a 1st and a 2nd signals. CONSTITUTION:An input signal 1 is fed to a 1H delay circuit 2 having a delay time equal to one horizontal scanning period, from which a 1H delay signal 3 is generated and fed to low pass filters 4, 5, converted into low frequency signals 6, 7, and fed to a coefficient circuit 8, from which a coefficient signal 9 is obtained. Then the signal is fed to a multiplier 10, in which the signal 3 and the signal 9 are multiplied and an interpolation signal 11 is obtained, which is added to the input signal 1 to obtain an output signal 13. Side band components of a sampling frequency of signals of 1st and 2nd signal groups are opposite in phase to each other. Thus, the side band component is eliminated in the interpolation signal obtained by the correction and the signal 13 after interpolation obtained from the addition of the signal of the 1st signal group before interpolation. Thus, a pseudo signal generated at the border of a subject in the reproduced picture is suppressed.

39. 发明专利

JPH03135177A SIGNAL READOUT DEVICE 失效
公开(公告)号：JPH03135177A
公开(公告)日：1991-06-10
申请号：JP27159489
申请日：1989-10-20
申请人： HITACHI LTD
发明人： TAKAHASHI KENJI , AKIYAMA TOSHIYUKI , MIMURA ITARU , OZAWA NAOKI , MATSUMOTO TAKAHIRO
IPC分类号： H04N5/335 , H04N5/341 , H04N5/357 , H04N5/363 , H04N5/369 , H04N5/372 , H04N5/378
摘要： PURPOSE:To obtain a video signal with a broad band and high picture quality by extracting a clock frequency component from a signal output and feeding back a DC level proportional to the amplitude of leakage clock to a correlation duplicate sampling circuit. CONSTITUTION:A clock frequency is extracted at a BPF 1 from an output signal at an output point P1 of a correlation duplicate sampling circuit, the leakage component is subject to synchronization detection by a synchronization detection circuit 2 and a DC voltage proportional to the amplitude is converted. The voltage is given to a gate circuit 3, a signal is extracted by using a gate pulse GP, the signal is compared with a reference voltage Vf at a differential amplifier 4 and a comparison output is given to a loop filter 5, and the output is used as a reference voltage of a clamp circuit 42 and a negative feedback circuit is constituted as a whole. In the negative feedback circuit, the voltage Vf is set to an earth level and the converged value is controlled so that an output level of the circuit 2 is zero, that is, the clock frequency at a point P1 is controlled to be zero. Thus, the video signal with an excellent phase characteristic is obtained and a sufficiently wide band output signal is obtained.

40. 发明专利

JPH02172370A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH02172370A
公开(公告)日：1990-07-03
申请号：JP32579288
申请日：1988-12-26
申请人： HITACHI LTD
发明人： AKIYAMA TOSHIYUKI , MIMURA ITARU , OZAWA NAOKI , TAKAHASHI KENJI , MATSUMOTO TAKAHIRO
IPC分类号： H04N5/232
摘要： PURPOSE:To suppress the spread of an image due to the movement of an object during the storage period of a signal charge by devising the device such that a relative speed of an image formed on a photodetecting face with respect to the photodetecting face is decreasing while a signal charge is stored or the image is made nearly standstill on the photodetecting face even if the object is moving. CONSTITUTION:The signal charge is stored while moving an optical system such as a lens 1 and an image pickup element 2 or either of them in matching with the movement of an object so that a relative speed of a noted image being at least part of the image formed on the photodetecting face of an image pickup element 2 with respect to the photodetecting face of the image pickup element 2 is small or nearly at a standstill for a period being nearly an integral number of multiple of a signal charge storage period or a signal charge readout period. Thus, the spread of the image due to a moving object for the signal charge storage period is suppressed.

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