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公开(公告)号：JPS61502442A
公开(公告)日：1986-10-23
申请号：JP50284585
申请日：1985-06-10
Applicant: RCA CORP
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公开(公告)号：FR2588117A1
公开(公告)日：1987-04-03
申请号：FR8613534
申请日：1986-09-29
Applicant: RCA CORP
Abstract: A degaussing circuit for a video display apparatus eliminates residual degaussing current flow during operation of the video display apparatus. A capacitor is connected between coil of the degaussing relay and the source of energizing voltage. Application of the energizing voltage to the relay coil energizes the relay and initiates degaussing of the cathode ray tube of the video display apparatus, and also causes the capacitor to begin charging. As the capacitor becomes charged, the degaussing relay becomes deenergized, thereby terminating degaussing current flow. The capacitor charging time constant is selected to allow sufficient time for degaussing to occur before deenergization of the degaussing relay.
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公开(公告)号：DK65086A
公开(公告)日：1986-02-11
申请号：DK65086
申请日：1986-02-11
Applicant: RCA CORP
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公开(公告)号：GB2181328A
公开(公告)日：1987-04-15
申请号：GB8623350
申请日：1986-09-29
Applicant: RCA CORP
IPC: H04N9/29
Abstract: A degaussing circuit for a video display apparatus eliminates residual degaussing current flow during operation of the video display apparatus. A capacitor is connected between coil of the degaussing relay and the source of energizing voltage. Application of the energizing voltage to the relay coil energizes the relay and initiates degaussing of the cathode ray tube of the video display apparatus, and also causes the capacitor to begin charging. As the capacitor becomes charged, the degaussing relay becomes deenergized, thereby terminating degaussing current flow. The capacitor charging time constant is selected to allow sufficient time for degaussing to occur before deenergization of the degaussing relay.
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公开(公告)号：DE3633069A1
公开(公告)日：1987-04-09
申请号：DE3633069
申请日：1986-09-29
Applicant: RCA CORP
IPC: H04N9/29
Abstract: A degaussing circuit for a video display apparatus eliminates residual degaussing current flow during operation of the video display apparatus. A capacitor is connected between coil of the degaussing relay and the source of energizing voltage. Application of the energizing voltage to the relay coil energizes the relay and initiates degaussing of the cathode ray tube of the video display apparatus, and also causes the capacitor to begin charging. As the capacitor becomes charged, the degaussing relay becomes deenergized, thereby terminating degaussing current flow. The capacitor charging time constant is selected to allow sufficient time for degaussing to occur before deenergization of the degaussing relay.
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Patent Agency Ranking
公开(公告)号：FI860558A
公开(公告)日：1986-02-07
申请号：FI860558
申请日：1986-02-07
Applicant: RCA CORP
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公开(公告)号：CA1240402A
公开(公告)日：1988-08-09
申请号：CA483692
申请日：1985-06-11
Applicant: RCA CORP
Inventor： MCDONALD JAMES ALEXANDER , WAYBRIGHT GEORGE CLEVELAND , WILLIS DONALD HENRY , SUTHERLAND II HUGH FERRAR , LUZ DAVID WARREN , HAFERL PETER EDUARD
Abstract: Line and field deflection circuits generate line and field deflection currents in respective line and field deflection windings to scan a raster on the phosphor screen of a square-planar picture tube having an aspherical faceplate. The asphericity of the faceplate subjects the scanned raster to gullwing distortion. A gullwing distortion correction circuit is responsive to signals repeating at line and field rates, respectively, for modulating the field deflection current during a line deflection period within the field deflection trace interval in a manner that corrects gullwing distortion of a corresponding raster scan line.
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公开(公告)号：DK65086D0
公开(公告)日：1986-02-11
申请号：DK65086
申请日：1986-02-11
Applicant: RCA CORP
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公开(公告)号：FR2588117B1
公开(公告)日：1992-01-10
申请号：FR8613534
申请日：1986-09-29
Applicant: RCA CORP
Abstract: A degaussing circuit for a video display apparatus eliminates residual degaussing current flow during operation of the video display apparatus. A capacitor is connected between coil of the degaussing relay and the source of energizing voltage. Application of the energizing voltage to the relay coil energizes the relay and initiates degaussing of the cathode ray tube of the video display apparatus, and also causes the capacitor to begin charging. As the capacitor becomes charged, the degaussing relay becomes deenergized, thereby terminating degaussing current flow. The capacitor charging time constant is selected to allow sufficient time for degaussing to occur before deenergization of the degaussing relay.
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公开(公告)号：GB2181328B
公开(公告)日：1990-02-14
申请号：GB8623350
申请日：1986-09-29
Applicant: RCA CORP , RCA LICENSING CORP
IPC: H04N9/29
Abstract: A degaussing circuit for a video display apparatus eliminates residual degaussing current flow during operation of the video display apparatus. A capacitor is connected between coil of the degaussing relay and the source of energizing voltage. Application of the energizing voltage to the relay coil energizes the relay and initiates degaussing of the cathode ray tube of the video display apparatus, and also causes the capacitor to begin charging. As the capacitor becomes charged, the degaussing relay becomes deenergized, thereby terminating degaussing current flow. The capacitor charging time constant is selected to allow sufficient time for degaussing to occur before deenergization of the degaussing relay.
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