公开(公告)号：JPH0515108B2

公开(公告)日：1993-02-26

申请号：JP14601983

申请日：1983-08-09

Applicant: SONY CORP

Inventor： SASE MASATOSHI ,  YAMANAKA SEISUKE

IPC: H04N5/16 ,  H04N5/18

公开(公告)号：JPH0470828B2

公开(公告)日：1992-11-12

申请号：JP19985881

申请日：1981-12-11

Applicant: SONY CORP

Inventor： ONGA MAKOTO ,  SASE MASATOSHI ,  YAMANAKA SEISUKE

IPC: H04N9/07 ,  G11C27/02 ,  H04N9/04

Abstract: A plurality of sampled outputs Y H1 , Y H2 which differ in phase by 2π/N from one another are mixed together. The sampled outputs are sequentially supplied by a switch 63 to a holding circuit 64, 65 whereby the deterioration of the high frequency characteristic of the synthesized output signal due to low-pass filter effects stemming from the zero hold in the sample/hold circuit can be prevented.

公开(公告)号：JPH03132262A

公开(公告)日：1991-06-05

申请号：JP27077389

申请日：1989-10-18

Applicant: SONY CORP

Inventor： ONGA MAKOTO ,  SASE MASATOSHI

IPC: H04N5/18

Abstract: PURPOSE:To prevent deterioration in the signal accuracy of an absolute black level of an optical black waveform portion by inserting a replacement black waveform part representing a relative black level into a video signal in addition to the optical black waveform portion representing an absolute black level. CONSTITUTION:A replacement black waveform portion W24 representing a relative black level is inserted to a video signal in addition to an optical black waveform portion W22 representing an absolute black level by utilizing horizontal blanking line feedback. Thus, since a signal level of the replacement black waveform portion W24 is clamped as to a signal processing stage executing the signal processing based on the relative black level actually, the opportunity of causing noise to the absolute black level or making dirt in the optical black waveform portion W22 is less. Thus, the signal accuracy of the absolute black level is not deteriorated and a video signal with excellent picture quality is sent from a camera.

公开(公告)号：JPS61210714A

公开(公告)日：1986-09-18

申请号：JP5115085

申请日：1985-03-14

Applicant: SONY CORP

Inventor： SASE MASATOSHI ,  ONGA MAKOTO

IPC: H03G3/10

Abstract: PURPOSE:To have a correct control characteristic in the gain control amplifier to give to a pair of inputs of the succeeding differential amplifier after a pair of output electric currents of the preceding differential amplifier is received by a PN junction by having a constant electric current load at the output part in the preceding differential amplifier. CONSTITUTION:After a pair of output electric currents of a preceding differential amplifier 1 are received by the PN junction (diodes D1 and d2), the current is given to a pair of inputs of a succeeding differential amplifier 2. A direct current electric current I0 overlapped to the PN junctions D1 and D2 is made variable and the gain is controlled. The preceding differential amplifier 1 is provided with a constant electric current load (I0+I1) at the output part. In an output point A(A') of the amplifier 1, the signal electric current, which flows at the amplifier side, is +x, and then the electric current, which flows at the A point, is constant (I0+I1), Therefore, the signal electric current, which flows from an A point to the outside, goes to be -x. The corresponding relation is never changed even when the direct current electric current I0 to control the gain for overlapping to the PN junction (D1 and D2) is made variable. Consequently, when I0 is made variable, the proportional relation of the resistance of the PN junction and the amplifier gain goes to be completely of a straight line system.

公开(公告)号：JPS6160082A

公开(公告)日：1986-03-27

申请号：JP18213784

申请日：1984-08-31

Applicant: Sony Corp

Inventor： SASE MASATOSHI

IPC: H04N5/243

CPC classification number: Y02T10/6239

Abstract: PURPOSE:To obtain an output video signal at an appropriate level without fail by providing a gate circuit at an anterior stage of a level detection circuit and obtaining the state where the gate circuit is opened in the entire period of a screen in accordance with the situation of a subject and that where the gate circuit is opened in some period of a screen. CONSTITUTION:A gate circuit 20 is opened or closed by a gate signal from a gate signal forming circuit 21. When a switch 22 is not turned on, a signal G1 which comes to a high level in a period except horizontal and vertical blanking periods can be obtained from the forming circuit 20, and the gate circuit 20 is in the open state in the high level period. A video signal is supplied to a level detection circuit 7 over the entire screen to be rectified, and an AGC is applied by the rectified output. Consequently, when the switch 22 is turned on at the time of reverse light, the AGC is applied due to the brightness of a target subject part and the titled device becomes free from the brightness of a background.

Abstract translation: 目的：通过在电平检测电路的前级提供门电路，并根据情况获得门电路在整个屏幕的整个周期内打开的状态，以便在合适的电平下获得输出视频信号 以及门电路在屏幕的某个时段打开的位置。 构成：门电路20由来自栅极信号形成电路21的栅极信号打开或闭合。当开关22未导通时，除了水平和垂直消隐期之外的时段内达到高电平的信号G1可以 从形成电路20获得，并且门电路20在高电平时段中处于打开状态。 视频信号通过要整流的整个屏幕提供给电平检测电路7，由整流输出施加AGC。 因此，当在反光时开关22接通时，由于目标被摄体部分的亮度而施加AGC，并且标题装置变得没有背景的亮度。

公开(公告)号：JPS6158383A

公开(公告)日：1986-03-25

申请号：JP18093984

申请日：1984-08-30

Applicant: Sony Corp

Inventor： SASE MASATOSHI

IPC: H04N5/21 ,  H04N5/205

Abstract: PURPOSE: To eliminate the switching noise of a switch and to change the band area of a luminance signal at a luminance signal, level by synthesizing a black level of the luminance signal from a video camera with a high area component of a level-pressed or clipped signal and a low area component of the luminance signal.
CONSTITUTION: A luminance signal of a video camera from a signal input terminal 11 of a luminance signal processing device is added to a dark clip circuit 12 and an LPF 15 and clipped by a circuit 12 at a low luminance level, and the output is added to an HPF 13. The outputs of the HPF 13 and LPF 15 are synthesized by a synthesizing circuit 14 and the luminance signal is outputted from an output terminal 16. At the high level of the luminance signal, the high and low area components of the luminance signal from the HPF 13 and LPF 15 are synthesized and outputted. At the low level of the luminance signal, the level of the luminance signal is clipped by the circuit 12 to eliminate the high area component from HPF 13, output the low component from the LPF 15 only and change the band area of the luminance signal at the level of the luminance signal.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：为了消除开关的开关噪声，并且通过从具有高电平按压的高区域分量的摄像机合成亮度信号的黑电平，从而改变亮度信号亮度信号的频带面积， 限幅信号和亮度信号的低面积分量。 构成：来自亮度信号处理装置的信号输入端子11的摄像机的亮度信号被加到暗片电路12和LPF 15中，并被电路12以低亮度电平钳位，输出被加上 HPF13和LPF15的输出由合成电路14合成，亮度信号从输出端子16输出。在亮度信号的高电平时，高频和低频区域分量 合成并输出来自HPF 13和LPF 15的亮度信号。 在亮度信号的低电平时，由电路12削减亮度信号的电平，以消除HPF13的高区域分量，仅从LPF 15输出低分量，并将亮度信号的频带面积改变为 亮度信号的电平。

公开(公告)号：JP2000069371A

公开(公告)日：2000-03-03

申请号：JP23714398

申请日：1998-08-24

Applicant: SONY CORP

Inventor： SASE MASATOSHI ,  TESHIROGI HIDEHIKO ,  YASUSATO SHIGENOBU

IPC: H04N5/228 ,  H04N5/232 ,  H04N5/243 ,  H04N5/335 ,  H04N5/341 ,  H04N5/351 ,  H04N5/361 ,  H04N5/365 ,  H04N5/372 ,  H04N5/378 ,  H04N9/04

Abstract: PROBLEM TO BE SOLVED: To provide a shading correction device that attains electronic hand- shake correction and shading correction with high performance, even at irregular drive an image pickup device such as an electronic zoom. SOLUTION: A coordinate value generating section 12 of a quadratic curved face function generator 11 uses a horizontal synchronizing signal HD as a reset signal to count a clock signal CK, so as to obtain a coordinate value X in the horizontal direction and a coordinate value generating section 13 uses a sensor gate pulse SG of an imaging device as a reset signal to count a vertical transfer pulse VCLK of the image pickup device and to obtain a coordinate value Y. A quadratic curved face arithmetic section 14 calculates a shading correction coefficient COE corresponding to the coordinate values, X, Y, by using a quadratic curved face function coefficient fR (X, Y) and a multiplier 17 which is the component of a correction amplifier 16, multiplies an image pick-up signal outputted from the image pickup device by the shading correction coefficient COE to apply shading correction to the image pickup signal.

公开(公告)号：JPH11355066A

公开(公告)日：1999-12-24

申请号：JP15469198

申请日：1998-06-03

Applicant: SONY CORP

Inventor： SASE MASATOSHI

IPC: G06G7/163 ,  H03F3/45

Abstract: PROBLEM TO BE SOLVED: To expand the operation range of in-phase input in a comparatively simple configuration by respectively connecting one and the other input terminals through a DC shift circuit to one and the other input terminals of plural error amplifiers and mutually connecting the output terminals of these plural error amplifiers. SOLUTION: This circuit is provided with (n) pieces of error amplifiers 101 -10n . Then, input terminals 1a and 1b on one side and the other side to supply signals are respectively connected through DC shift circuits 121 -12n and 141 -14n to the input terminals of these (n) pieces of error amplifiers 101 -10n on one side and the other side. At the same time, the output terminals of these (n) pieces of error amplifiers 101 -10n are parallelly connected so as to lead out output terminals 11a and 11b. Thus, the operation range of the in-phase input to this error amplifier becomes the sum of operation ranges of in-phase input to these (n) pieces of error amplifiers 101 -10n and the wide operation range of in-phase input can be achieved.

公开(公告)号：JPH11102593A

公开(公告)日：1999-04-13

申请号：JP26527497

申请日：1997-09-30

Applicant: SONY CORP

Inventor： SASE MASATOSHI ,  NISHI TSUYOTOSHI

IPC: G11C27/02 ,  H04N5/335 ,  H04N5/372 ,  H04N5/378

Abstract: PROBLEM TO BE SOLVED: To provide a sample and hold circuit that can reduce the power consumption by arbitrarily setting slew rate characteristics being suitable for the operating frequency of a CCD image pickup element. SOLUTION: During a sample period when an S/H pulse is set to a low level, a charge current I is supplied to a hold capacitor 13 at a comparator part 12, the capacitor 13 is charged until the voltage across the hold capacitor 13 reaches an input voltage Vin. On the other hand, during a hold period when the S/H pulse is set to a high level, the charge of the hold capacitor 13 is retained. Then, a control current Icont is controlled by a control voltage Vcont being given from an external variable current power supply 18, and a current value I of the charge current is varied externally, thus arbitrarily adjusting slew rate characteristics.

公开(公告)号：JPH05304678A

公开(公告)日：1993-11-16

申请号：JP13605792

申请日：1992-04-27

Applicant: SONY CORP

Inventor： SASE MASATOSHI ,  WAKAGI TORU

IPC: H04N5/57 ,  H04N9/07 ,  H04N9/68

Abstract: PURPOSE:To obtain the luminance balancing circuit capable of obtaining a signal of well-balanced luminance with relatively good S/N. CONSTITUTION:In the signal processing circuit for color camera using a CCD solid-state image pickup device 9 in the system for reading full picture elements, multipliers 15 and 16 multiply chrominance signals Gr/Ye, Cy/Gb of two channels outputted from the CCD solid-state image pickup device 9 by balance coefficients a/b, c/d independent of each line while point-sequentially switching them. These coefficient values are set by a coefficient setting circuit 17 according to the color temperature information to balance the luminance at all color temperatures.