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1. 发明专利

JPS63204892A VIDEO SIGNAL MEASURING INSTRUMENT 失效
公开(公告)号：JPS63204892A
公开(公告)日：1988-08-24
申请号：JP3621287
申请日：1987-02-19
申请人： SONY CORP
发明人： OKUDA HIROYUKI , NARITA ATSUO
IPC分类号： H04N17/06
摘要： PURPOSE:To select a field by means of a simple common circuit by discriminating a field from a composite synchronizing signal separated from a video signal, selecting an arbitrary field from thus obtained discrimination output, and making the selected arbitrary field a field reference for determining a sample area. CONSTITUTION:A signal S2 related to the vicinity of boundary of respective fields is formed out of a composite synchronizing signal separated from a video signal, and by counting this signal S2 by a counter 40, the field-discrimination is made possible at the output side of a field discrimination circuit 15. The output of this field-discrimination and a control signal in a specific pattern are logically processed to select a specific field. Thus selected field is made as a field reference which is one of the factors to form a sample area. In such a way, one same circuit is made usable either in the normal reproduction mode or the varied-speed reproduction mode, hence the circuit constitution of the titled device can be simplified, and the cost can be reduced.

2. 发明专利

JPS63151292A TELEVISION SIGNAL GENERATING DEVICE 失效
公开(公告)号：JPS63151292A
公开(公告)日：1988-06-23
申请号：JP29928386
申请日：1986-12-16
申请人： SONY CORP
发明人： NARITA ATSUO
IPC分类号： H04N11/18
摘要： PURPOSE:To attain a complete digitization by executing the FM conversion of a color difference signal digital data by means of the read control for reference sinusoidal waveform digital data, and executing all other necessary processings digitally in a SECAM system television signal generating device. CONSTITUTION:An FM-modulated reference sinusoidal waveform data is controlled of its phase by O/pi by an exclusive OR circuit 9 in accordance with the phase inversion of a subcarrier wave of SECAM system. A color difference signal data and the reference sinusoidal waveform data are AM-modulated by a multiplier 10, and supplied to one terminal of the input of an adder 11. To the other input terminal of the adder 11, an illuminance signal data is supplied, and a SECAM video signal digital data is outputted. This data is outputted as an analog SECAM video signal via a D/A converter 12 and a LPF 13. Since the color difference signal of SECAM system is added with an illuminance digital data at the stage of a digital data in such a way, the data can be completely digitized.

3. 发明专利

JP2000350061A METHOD AND DEVICE FOR DISPLAYING ELECTRONIC FINDER 失效
公开(公告)号：JP2000350061A
公开(公告)日：2000-12-15
申请号：JP15529799
申请日：1999-06-02
申请人： SONY CORP
发明人： NEMOTO SHOJI , HONDA TAKASHI , NARITA ATSUO
IPC分类号： H04N5/225 , G03B13/02 , G03B17/20
摘要： PROBLEM TO BE SOLVED: To realize a means for indicating that a video camera is under photographing state, without providing a display means to be used only for this by detecting that the camera is operated to be in a photographing state, changing the display state of an image displayed in an electronic finder, based on this detection and displaying that the camera is operated in the photographing state. SOLUTION: In a state where a photographing operation button is not being operated, a video signal 1e which is supplied to a small Braun tube 5A and displayed on a display screen 5C is supplied, in a state where it is attenuated to 50% by a signal attenuator 11. During a period, when the button is operated and a video camera device is in the photographing state, the video signal 1e is supplied to the Braun tube 5A as a display signal in a state where it is not attenuated by the attenuator 11. That is, the brightness of the video signal 1e displayed on the display screen 5C is changed, so that the operation state of the photographing operation button is displayed clearly to the user of the device.

4. 发明专利

JPS63178690A TELEVISION SIGNAL CONVERTER 失效
公开(公告)号：JPS63178690A
公开(公告)日：1988-07-22
申请号：JP1037687
申请日：1987-01-20
申请人： SONY CORP
发明人： NARITA ATSUO
IPC分类号： H04N11/20
摘要： PURPOSE:To make the titled device with comparatively small scale suitable for any broadcast system by using a reference clock being an integral number of multiple of a horizontal synchronizing frequency to apply A/D conversion directly to a video signal and multiplying chrominance carrier signal digital data by subcarrier digital data. CONSTITUTION:A a reference clock being an integral number of multiple of a horizontal synchronizing frequency fH is used to apply direct A/D conversion to an analog video signal and reference sine wave data for subcarrier is stored in memories 1, 2. DATA 10 from the memory 1 and DATA 11 from a phase inverter are fed to a control circuit CNT. The control circuit CNT supplies SIN wave data in matching with each system to a multiplier 1 as a phase comparison reference signal DATA 12. DATA 1, 10 and the DATA 11 are multiplied respectively by multipliers 2, 3 to apply phase detection and to output DATA 14, 15. The data are converted into a digital color difference signal by digital LPFs 2, 3 to form DATA 16, 17. Thus, the titled device is applied to any system without being limited by the chrominance subcarrier frequency fSC.

5. 发明专利

JPS62168065A FREQUENCY MEASURING INSTRUMENT 失效
公开(公告)号：JPS62168065A
公开(公告)日：1987-07-24
申请号：JP940786
申请日：1986-01-20
申请人： SONY CORP
发明人： NARITA ATSUO
IPC分类号： G01R23/10
摘要： PURPOSE:To detect the quantities of variation of the 1st and the 2nd frequency signals with high accuracy by providing a control means which makes the output signal of a converting means effective only when the 1st and the 2nd frequency signals are within a specific frequency band. CONSTITUTION:A signal supplied to a peak-to-peak detector 15 varies between 0 and 10V in proportion to with frequency only when the signal is within such a frequency band that the signal coincides with the data of the high-order four bits which are counted 19 and only the low-order eight bits vary. This varying voltage signal is supplied to input terminals 27a and 28a of comparators 27 and 28 for setting an upper and a lower limit and a reference signal with another constant level is supplied to the other input terminals 27b and 28b of the comparators 27 and 28. Then, an up/down counter 29 supplies a count signal to a gate controller 18 with the output signals of the comparators 27 and 28 in synchronism with a switching pulse signal which is supplied to a terminal 29a and switches at the intervals of a recording field. The controller 18 controls the timing where a gate 17 is opened with the count signal from the counter 19 in synchronism with a video signal supplied to a terminal 18a.

6. 发明专利

JPS62165992A REGULATOR 失效
公开(公告)号：JPS62165992A
公开(公告)日：1987-07-22
申请号：JP744686
申请日：1986-01-17
申请人： SONY CORP
发明人： NARITA ATSUO
IPC分类号： G05B11/36 , G05B13/00 , G05B13/02 , H05K3/00 , H05K13/00

7. 发明专利

JPH09233695A ELECTRONIC EQUIPMENT AND ITS POWER SUPPLY SYSTEM 失效
公开(公告)号：JPH09233695A
公开(公告)日：1997-09-05
申请号：JP5822596
申请日：1996-02-22
申请人： SONY CORP
发明人： NARITA ATSUO
IPC分类号： H05K11/00 , H02J1/00
摘要： PROBLEM TO BE SOLVED: To realize that one electronic equipment can be used, that the freedom in design of the form of one electronic equipment can be raised, and that the influence of needless radiation from the other electronic equipment can be reduced, so long as the exclusive power source of the other electronic equipment is usable, even if the exclusive power source of one electronic equipment becomes unusable out of the two electronic equipment used both. SOLUTION: Power voltage is supplied to a power voltage selecting circuit 45 through the power supply terminals 31, 32, 34, and 35 of a cam coder 30, a D/D converting circuit 33, and the power supply terminals 41 and 42 of a tuner 40 from the exclusive battery 50 of a cam coder 30. Moreover, power voltage is supplied to the power voltage selecting circuit 45 through the power supply terminals 43 and 44 of the tuner 40 from the exclusive battery 60 of the tuner 40. The power voltage selecting circuit 45 selects the side higher in voltage value out of the two power voltages. This selected voltage is supplied to the D/D converting circuit 48 as power voltage for use.

8. 发明专利

JPS63204894A VIDEO SIGNAL MEASURING INSTRUMENT 失效
公开(公告)号：JPS63204894A
公开(公告)日：1988-08-24
申请号：JP3621487
申请日：1987-02-19
申请人： SONY CORP
发明人： OKUDA HIROYUKI , NARITA ATSUO
IPC分类号： H04N17/06
摘要： PURPOSE:To eliminate the influence of a skew (time base discontinuity) occurring at the time of head-switching and to always generate stable sampling clock suitable for data-digitization by obtaining a sampling clock from a PLL circuit. CONSTITUTION:A horizontal synchronizing signal separated from a video signal is supplied to a PLL circuit 13 via gate means 33, 34. The means 33, 34 are controlled by a deciding means 35 that discriminates the propriety of the horizontal synchronizing signal. If the horizontal synchronizing signal is normal, the gate means 33, 34 are opened to supply the signal to the PLL circuit 13, but if abnormal, the gate means 33, 34 are closed to interrupt the supply to the circuit 13. In a skew correction means 11, a gate signal is generated in the vicinity of a skew-occurring point in response to a vertical synchronizing signal, and a normal horizontal synchronizing signal is made pass by this gate signal to reset the frequency divider 12b of the PLL circuit 13. As a result, the stable sampling clock can be always obtained.

9. 发明专利

JPS63168576A ELECTRONIC CIRCUIT MEASURING APPARATUS 失效
公开(公告)号：JPS63168576A
公开(公告)日：1988-07-12
申请号：JP31178586
申请日：1986-12-30
申请人： SONY CORP
发明人： NARITA ATSUO
IPC分类号： G01R31/00 , G11B20/18
摘要： PURPOSE:To enable high-speed measurement, by operating a D/A converter into which is inputted an input data for measurement and an A/D converter into which is inputted a signal from an electronic circuit to be measured by the same reference clock pulse. CONSTITUTION:A measuring input data stored in a data memory section 4 is converted into an analog signal with a D/A converter 5 to be applied to a circuit 1 to be measured. An output of a detection circuit 7 which detects an output of the circuit 1 is converted into a digital signal with an A/D converter 15 to be applied to a memory 16. Operations of the converters 5 and 15 and a mode control circuit 19 for switching modes of the circuits 1 and 7 are all performed synchronously by a reference clock pulse generated with a reference clock pulse generation circuit 2. This enables synchronization among the switching of operation modes, application of a measuring input signal and fetching of signals from the circuit 1, thereby permitting high-speed measurement of characteristics of an electronic circuit in various operation modes.

10. 发明专利

JPS63157571A SYNCHRONIZING SIGNAL SAMPLING CIRCUIT 失效
公开(公告)号：JPS63157571A
公开(公告)日：1988-06-30
申请号：JP30587786
申请日：1986-12-22
申请人： SONY CORP
发明人： NARITA ATSUO
IPC分类号： H04N5/08 , H04N5/18
摘要： PURPOSE:To sample a synchronizing signal with high accuracy even from a video signal of adverse quality by applying pulse clamp except the 9-line vertical period where distortion is often caused easily thereby correcting leakage current caused during the 9-line vertical period. CONSTITUTION:A high frequency component is eliminated from an input video signal at first by an LPF, the result is fed to an amplifier 1, where the level is amplified and a built-in limiter eliminates the signal of the picture part above the slice level. A DC bias control circuit 2 to ensure the operation of the amplifier 1 is provided. The pedestal part in the output of the amplifier 1 is fixed in terms of DC to ensure the elimination of the signal of the picture part. The pedestal part of the output of the amplifier 1 is clamped to a ground level by using a clamp FETQ2. In such a case, since the synchronizing signal itself is often distorted during the 9-line vertical period, a leakage current correcting circuit 3 is provided to inhibit the DC bias control and clamping operation and to suppress the fluctuation of the DC level during this period.

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