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公开(公告)号：JPS63204237A
公开(公告)日：1988-08-23
申请号：JP3764287
申请日：1987-02-19
Applicant: SONY CORP
Inventor： KUNIYOSHI YASUNOBU
Abstract: PURPOSE:To prevent hunting from occurring in a high-brightness state by providing a stop detecting means which detects a stop-down quantity and making the response of an iris control loop lower as the stop-down quantity is larger according to the detection result of the stop detecting means. CONSTITUTION:When a stop is rather closed to a stop-down quantity larger than a preset value, the output voltage of the stop detecting element 13 rises above a reference voltage and a comparing circuit 14 outputs a signal which turns on a switch 16. The parallel circuit of damping resistances R1 and R2 is therefore formed and the value of the resistance R(=R1XR2/R1+R2) of this parallel circuit becomes smaller than when only the R1 is provided, so that damping effect increases. Consequently, when the stop is rather closed in a high-brightness state, the response speed of the stop 3 is slowed down and hunting becomes hard to occur.
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公开(公告)号：JPS61253905A
公开(公告)日：1986-11-11
申请号：JP9503785
申请日：1985-05-02
Applicant: SONY CORP
Inventor： TSUCHIYA SATOSHI , KUNIYOSHI YASUNOBU , AOYANAGI MINORU
Abstract: PURPOSE:To remove the errors of operational amplifiers by integrating a bias input current by a dummy operational amplifier and applying the integrated output to the inputs of the operational amplifiers to be compensated through a coupling capacitor to cancel the bias input current. CONSTITUTION:When input switches S6-S8 are closed and reset switches S3-S5 are opened, the operational amplifiers OP2-OP4 integrate input signal currents i1-i3 respectively and output integrated outputs E2-E4. The operational amplifier OP1 is a dummy integrator for compensating the bais current, and at the opening of a reset switch S9, only a current IA corresponding to the bias current flows into the input of the OP1 and the integrated output E1 of the IA is outputted. The output of the OP1 is connected to respective inputs of the amplifiers OP2-OP4 through the coupling capacitors C2B-C4B. Consequently, the errors of the operational amplifiers can be removed.
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公开(公告)号：JPS61253433A
公开(公告)日：1986-11-11
申请号：JP9503885
申请日：1985-05-02
Applicant: SONY CORP
Inventor： KUNIYOSHI YASUNOBU , TSUCHIYA SATOSHI , AOYANAGI MINORU
Abstract: PURPOSE:To enable accurate photometry eliminating the dependence of the photometry value on the temperature, by employing a time constant element with a better temperature characteristic to perform a range compression of the photometry value based on a CR time constant curve. CONSTITUTION:A photometry circuit is made up of a light receiving element 1 comprising photodiode, a reference current generation circuit 6 comprising a series circuit of a resistance R and a capacitor C, an operation amplifier 7, a feedback circuit 8 comprising a parallel reverse connection of diodes D1 and D2, a comparator 9 and a Schmitt trigger 10. Then, while a reference current IR is larger than the photocurrent IL flowing through the light receiving element 1 according to extraneous light, the output of the comparator 9 moves to a high level and as the reference current IR decreases and becomes less than the photocurrent IL, the output of the comparator 9 goes to the low level. Thus, the pulse output T with the logarithmically compressed time base corresponding to the photometry value is obtained and converted into a digital photometry value thereby eliminating the dependence of the photometry value on the temperature.
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公开(公告)号：JPS61251721A
公开(公告)日：1986-11-08
申请号：JP9340085
申请日：1985-04-30
Applicant: SONY CORP
Inventor： KUNIYOSHI YASUNOBU , TSUCHIYA SATOSHI , AOYANAGI MINORU
Abstract: PURPOSE:To compress a photometric value without any temperature dependency by providing an integrator which integrates the output of a photodetecting element, a reference generating circuit, and a comparator. CONSTITUTION:The output of the photodetecting element 1 is integrated by the integrator 5, whose lamp voltage output E is compared by the comparator 8 with the output ER of the reference generating circuit 7. Then, the intersection TW of the integrated value and a reference is detected and the comparison output is waveform-shaped by a Schmitt trigger circuit 8 to obtain photometric information which is compressed logarithmically and approximately and expressed as pulse width. Then, an output pulse T is inputted to a CPU and photometric data is obtained by measuring the pulse width. Consequently, the temperature dependency of the photometric value is eliminated by a time constant element which has good temperature characteristics.
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公开(公告)号：JPS61102887A
公开(公告)日：1986-05-21
申请号：JP22365184
申请日：1984-10-24
Applicant: Sony Corp
Inventor： TSUCHIYA SATOSHI , KUNIYOSHI YASUNOBU , AOYANAGI MINORU
Abstract: PURPOSE: To always obtain proper white balance in accordance with pick-up conditions by inserting a diffusing plate and a photo sensor in a cylinder and make the positions of the diffuser and the photo sensor adjustable in the axial direction of this cylindrical body.
CONSTITUTION: When adjustable zoom ring 35 is turned to the extent of wide angle W side, the moving cylinder 42 retreats to the position until its front end in axial direction comes in close coincidence with a diffusing plate 2. Inversely, when the cylinder is turned to the extent of a telephoto position T, the moving cylinder 42 protrudes to a point its tail end in the axial direction comes in close coincidence with the plate 2. Therefore, when photographing at the wide angle side, a wide scope around the camera is image picked-up. And in photographing at the telephoto side, mainly the same light as the illuminating light around the object rather than the light around the camera is made incident. Therefore, when shooting the object outside the house from inside the house, the light from the house illumination of such as fluorescent or incandescent lamps scarecely is made incident to the photo sensor 1, but the sunlight which is the same as the light illuminating the object mainly is made incident to the sensor to give a proper white balance.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：通过将漫射板和光电传感器插入圆柱体中，使拾音器的总体位置可以在该圆柱体的轴向方向上调整，以便始终根据拾音条件获得适当的白平衡。 构成：当可变变焦环35转动到广角W侧的程度时，移动气缸42退回到轴向的前端与扩散板2紧密一致的位置。相反，当气缸转动时 在远摄位置T的程度上，移动筒42突出到其轴向方向的尾端与板2紧密一致的位置。因此，当在广角侧拍摄时，相机周围的宽范围是 图像拾起。 而在长焦摄影时，主要是与物体周围的照明光相同的光，而不是照相机周围的光线。 因此，当从房屋内部拍摄房屋外的物体时，诸如荧光灯或白炽灯的室内照明的光被入射到光传感器1，但是与照亮物体的光相同的太阳光 主要是对传感器发生事故以给出适当的白平衡。
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Patent Agency Ranking
公开(公告)号：JPS5890889A
公开(公告)日：1983-05-30
申请号：JP19443882
申请日：1982-11-05
Applicant: SONY CORP
Inventor： TSUCHIYA TAKAHISA , KUNIYOSHI YASUNOBU
Abstract: PURPOSE:To remove crosstalk, by setting the relation of frequencies so as to interleave a carrier chrominance at adjacent tracks, through the recording of a multiplex signal of the carrier chrominance signal of low frequency conversion and an FM luminance signal. CONSTITUTION:The phase of carrier chrominance signals is controlled and recorded on a recording medium 2 so that the frequency interleave can be done at adjacent tracks. The carrier chrominance signal and a luminance signal are reproduced by heads 1A, 1B and a horizontal synchronizing pulse obtained from the reproduced luminance signal is applied to an AFC circuit 62. An alternating signal synchronized with a horizontal synchronizing pulse is picked up from this AFC circuit 62 to control the phase of the reproduced carrier chrominance signal based on this alternating signal.
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公开(公告)号：JPS56114481A
公开(公告)日：1981-09-09
申请号：JP1705680
申请日：1980-02-14
Applicant: SONY CORP
Inventor： KUNIYOSHI YASUNOBU , OKADA TAKAFUMI
IPC: H04N5/44
Abstract: PURPOSE:To facilitate IC-implementation by providing switches corresponding to items for adjustments of a color TV receiver, etc., and by making the adjustments by transferring data of respective items in series. CONSTITUTION:As a group of data is transferred from transmission part 50, shift register 101 is considered to be full of a group of 65-bit data, and the starting four bits and ending four bits are provided with a latch bit and guide bit respectively. Once a group of data is completely transferred, a latch pulse is sent from AND circuit 104 and 57-bit data is latched in latch circuit 102. The data is supplied, item by item, to D-A converter 103 and an analog control voltage is led out.
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公开(公告)号：JPS5545224A
公开(公告)日：1980-03-29
申请号：JP11824878
申请日：1978-09-26
Applicant: SONY CORP
Inventor： OKADA TAKAFUMI , KUNIYOSHI YASUNOBU
Abstract: PURPOSE:To obtain a filter which has advantage, where the cut-off frequency of the filter circuit can be low and is not irregular and does not degrade a temperature characteristic, and is suitable for an IC. CONSTITUTION:Emitters of transistors Q1 and Q2 are connected to variable constant current power source A1, and the base and the collector of transistor Q1 are connected to input terminal T1 and power source terminal T3 respectively, and constant current source A2 and AC load capacitor C are connected to the collector of transistor Q2. Further, the collector of transistor Q2 is connected to the base of transistor Q3, and the collector of transistor Q3 is connected to terminal T3. Then, the emitter of transistor is connected to constant current source A3 and base output terminal T2 of transistor Q2, thereby constituting a filter circuit.
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公开(公告)号：JPS5412629A
公开(公告)日：1979-01-30
申请号：JP7813677
申请日：1977-06-30
Applicant: SONY CORP
Inventor： TSUCHIYA TAKAHISA , OOMORI SHIYOUJI , KUNIYOSHI YASUNOBU , MATSUZAKI ATSUSHI , AKAZAWA SUSUMU , TOMINAGA KIYONORI
Abstract: PURPOSE:To reduce the number of the circuit element and thus to simplify the circuit constitution by carrying out both chrominance signal clamping and matrix action for extracting the original chrominance signal via a single circuit and thus omitting one system of the clamp circuit.
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公开(公告)号：JPS63202187A
公开(公告)日：1988-08-22
申请号：JP3526887
申请日：1987-02-17
Applicant: SONY CORP
Inventor： KUNIYOSHI YASUNOBU , SHIONO TAKASHI , NAKAJIMA TAKATSUGU
Abstract: PURPOSE:To smooth the mode switching and to eliminate the sudden change in the lightness at switching by using one operating means so as to attain the automatic mode at its intermediate position and the manual mode in other cases thereby applying the control of fixed gain and variable aperture and the opposite control in response to the operating direction. CONSTITUTION:A mode detection circuit 7 is discriminated in the automatic mode when an operating means (VR) is at the midposition and is the manual mode in other positions. In case of the manual mode, a signal being the result of arithmetic operation to the output of an aperture hold circuit 12 and the output of the VR is inputted to the control system via a control switching circuit 6 in case of the manual mode, and a signal being the result of arithmetic operation of the output of a gain hold circuit 18 and the output of the VR is inputted to a gain control system via a gain control switching circuit 10. In case of moving the VR from the midpoint to one direction, the aperture is opened while the gain of the gain control system is kept to the gain at the mode switching by the operation and the gain is increased after the aperture is opened fully. In case of operating the VR to the other position, the opposite control to above is applied as to the aperture and the gain.
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