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公开(公告)号：DE3788413T2
公开(公告)日：1994-03-24
申请号：DE3788413
申请日：1987-12-28
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , KUME TSUTOMU , YAMAZAKI NOBUO , HASHIMOTO FUMIHARU , OHYA KOICHI
IPC: H03H11/12
Abstract: A double integration type filter circuit, consisting of a pair of integrators (11, 12; 13, 14) connected in series with each other, has a changeover switch (18, 15, SW) for commutating the filter characteristics to a filter configuration which emphasizes portions proper to the characteristics of the filter circuit to facilitate filter adjustment to reduce filter adjustment time and to realize improved accuracy while providing for automatic adjustment of the filter characteristics.
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公开(公告)号：DE3788413D1
公开(公告)日：1994-01-20
申请号：DE3788413
申请日：1987-12-28
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , KUME TSUTOMU , YAMAZAKI NOBUO , HASHIMOTO FUMIHARU , OHYA KOICHI
IPC: H03H11/12
Abstract: A double integration type filter circuit, consisting of a pair of integrators (11, 12; 13, 14) connected in series with each other, has a changeover switch (18, 15, SW) for commutating the filter characteristics to a filter configuration which emphasizes portions proper to the characteristics of the filter circuit to facilitate filter adjustment to reduce filter adjustment time and to realize improved accuracy while providing for automatic adjustment of the filter characteristics.
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公开(公告)号：CA1278052C
公开(公告)日：1990-12-18
申请号：CA554102
申请日：1987-12-11
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , KUME TSUTOMU , YAMAZAKI NOBUO , HASHIMOTO FUMIHARU , OHYA KOICHI
IPC: H03H11/12
Abstract: A double integration type filter circuit, consisting of a pair of integrators connected in series with each other, has a changeover switch for commutating the filter characteristics to a filter configuration which emphasizes portions proper to the characteristics of the filter circuit to facilitate filter adjustment to reduce filter adjustment time and to realize improved accuracy while providing for automatic adjustment of the filter characteristics.
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公开(公告)号：AU602031B2
公开(公告)日：1990-09-27
申请号：AU8197787
申请日：1987-12-01
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , OHYA KOICHI , HASHIMOTO FUMIHARA , YAMAZAKI NOBUO , KUME TSUTOMU
IPC: H03H11/12
Abstract: A double integration type filter circuit, consisting of a pair of integrators (11, 12; 13, 14) connected in series with each other, has a changeover switch (18, 15, SW) for commutating the filter characteristics to a filter configuration which emphasizes portions proper to the characteristics of the filter circuit to facilitate filter adjustment to reduce filter adjustment time and to realize improved accuracy while providing for automatic adjustment of the filter characteristics.
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公开(公告)号：FR2630282A1
公开(公告)日：1989-10-20
申请号：FR8905010
申请日：1989-04-14
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , SAITO JUNYA , SUZUKI MASAKAZU
Abstract: An automatic level adjusting system for a television receiver which is suitable as its automatic white balance adjusting circuit. In the manufacturing-process of the television receiver, desired data is selected from a positional data group of black or white reference pulse signal to be inserted into a video signal and is stored in a non-volatile memory, whereby when an image is reproduced, black or white level of the video signal is adjusted automatically on the basis of the data stored in the non-volatile memory. Thus, the insertion position of black or white reference pulse signal can be changed without modifying the hardware of the television receiver so that the automatic level adjusting system can be applied commonly to different types of television receivers.
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Patent Agency Ranking
公开(公告)号：AU8197887A
公开(公告)日：1988-06-30
申请号：AU8197887
申请日：1987-12-01
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , OHYA KOICHI , HASHIMOTO FUMIHARU , YAMAZAKI NOBUO , KURE TSUTOMU
Abstract: Filter adjustment apparatus for adjusting cut-off frequencies or dip frequencies, for example, may be adjusted to desired optimum properties, during application of an input signal of a constant frequency. The optimum filter adjustment data are found, based on data manifested when the level detected output of the filter (2) output crosses a prescribed reference level (Vref) whereby the filter adjustment operation is simplified and accuracy is improved with a simplified structure, and it is possible to achieve automatic adjustment of the filter characteristics.
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公开(公告)号：AU555650B2
公开(公告)日：1986-10-02
申请号：AU8495982
申请日：1982-06-17
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , KAWAKAMI HIROMI
Abstract: A television sound receiver includes an input terminal for selectively receiving a television sound signal from one or more broadcasting stations and a home television apparatus, a tuner, having a local oscillator, connected to the input terminal, an intercarrier sound demodulating circuit connected to the tuner, a split-carrier sound demodulating circuit, including a limiter amplifier, connected to the tuner, a sound signal output terminal, and switching circuitry for selectively and operatively connecting the intercarrier or split-carrier sound demodulating circuit between the tuner and sound signal output terminal. Additionally the receiver includes an error detector connected to the split-carrier sound demodulating circuit for detecting the frequency error of the tuner local oscillator and a first operational circuit responsive to the output signal from the error detector which produces a first operational output signal whereby the output signal therefrom activates the switching circuitry such that the split-carrier sound demodulating circuit is operatively connected between the tuner and the sound signal output terminal when the output signal from the error detector is less than a predetermined level. Control circuitry is provided which supplies a signal to activate the switching circuitry such that the intercarrier sound demodulating circuit is operatively connected between the tuner and sound signal output terminal whenever the home television apparatus is operatively connected to the input terminal. A second operational circuit is also provided which is responsive to output signals from a pair of level detectors which are connected to the limiter amplifier. An output signal supplied from the second operational circuit activates the switching circuitry such that the intercarrier sound demodulating circuit is operatively connected between the tuner and the sound signal output terminal when the output signals from the level detectors are below a predetermined value.
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公开(公告)号：AU541695B2
公开(公告)日：1985-01-17
申请号：AU7971682
申请日：1982-01-21
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , HONGU MASAYUKI , OHMURO SHIGERU
Abstract: A television sound receiver having an input terminal for receiving a television sound signal, a tuner including a local oscillator connected to the input terminal, an intercarrier sound demodulating circuit connected to the tuner, a split-carrier sound demodulating circuit, including a limiter amplifier connected to the tuner, a sound signal output terminal, and a switching device for selectively and operatively connecting either the intercarrier or split-carrier sound demodulating circuits between the tuner and the sound signal output terminal. Additionally, the receiver includes an error detecting device connected to the split-carrier sound demodulating circuit for detecting the frequency error of the local oscillator and a first operational device which is responsive to an output signal from the error detecting device and which produces a first operational device output signal which activates the switching device such that the split-carrier sound demodulating circuit is operatively connected between the tuner and the sound output terminal when the output signal from the error detecting device is less than a predetermined level. Level detectors are connected to the limiter amplifier and detect a level of the split-carrier sound signal. A second operational device, which is responsive to the output signal from the level detectors, produces an output signal which activates the switching device such that the intercarrier sound demodulating circuit is operatively connected between the tuner and the sound output terminal when the output signals from the level detectors are less than a predetermined value.
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公开(公告)号：GB2106344B
公开(公告)日：1984-09-19
申请号：GB8202355
申请日：1982-01-27
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , OHMURO SHIGERU , KAWAKAMI HIROMI , HONGU MASAYUKI
Abstract: A television sound receiver having an input terminal for receiving a television sound signal, a tuner including a local oscillator connected to the input terminal, an intercarrier sound demodulating circuit connected to the tuner, a split-carrier sound demodulating circuit, including a limiter amplifier connected to the tuner, a sound signal output terminal, and a switching device for selectively and operatively connecting either the intercarrier or split-carrier sound demodulating circuits between the tuner and the sound signal output terminal. Additionally, the receiver includes an error detecting device connected to the split-carrier sound demodulating circuit for detecting the frequency error of the local oscillator and a first operational device which is responsive to an output signal from the error detecting device and which produces a first operational device output signal which activates the switching device such that the split-carrier sound demodulating circuit is operatively connected between the tuner and the sound output terminal when the output signal from the error detecting device is less than a predetermined level. Level detectors are connected to the limiter amplifier and detect a level of the split-carrier sound signal. A second operational device, which is responsive to the output signal from the level detectors, produces an output signal which activates the switching device such that the intercarrier sound demodulating circuit is operatively connected between the tuner and the sound output terminal when the output signals from the level detectors are less than a predetermined value.
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公开(公告)号：DE3223826A1
公开(公告)日：1983-01-13
申请号：DE3223826
申请日：1982-06-25
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIHIRO , KAWAKAMI HIROMI
IPC: H04N5/60
Abstract: A television sound receiver includes an input terminal for selectively receiving a television sound signal from one or more broadcasting stations and a home television apparatus, a tuner, having a local oscillator, connected to the input terminal, an intercarrier sound demodulating circuit connected to the tuner, a split-carrier sound demodulating circuit, including a limiter amplifier, connected to the tuner, a sound signal output terminal, and switching circuitry for selectively and operatively connecting the intercarrier or split-carrier sound demodulating circuit between the tuner and sound signal output terminal. Additionally the receiver includes an error detector connected to the split-carrier sound demodulating circuit for detecting the frequency error of the tuner local oscillator and a first operational circuit responsive to the output signal from the error detector which produces a first operational output signal whereby the output signal therefrom activates the switching circuitry such that the split-carrier sound demodulating circuit is operatively connected between the tuner and the sound signal output terminal when the output signal from the error detector is less than a predetermined level. Control circuitry is provided which supplies a signal to activate the switching circuitry such that the intercarrier sound demodulating circuit is operatively connected between the tuner and sound signal output terminal whenever the home television apparatus is operatively connected to the input terminal. A second operational circuit is also provided which is responsive to output signals from a pair of level detectors which are connected to the limiter amplifier. An output signal supplied from the second operational circuit activates the switching circuitry such that the intercarrier sound demodulating circuit is operatively connected between the tuner and the sound signal output terminal when the output signals from the level detectors are below a predetermined value.
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