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公开(公告)号：US3885201A
公开(公告)日：1975-05-20
申请号：US47386074
申请日：1974-05-28
Applicant: RCA CORP
Inventor： FERNSLER RONALD EUGENE
CPC classification number: H04N3/20
Abstract: A fail-safe high voltage protection circuit for a television receiver includes means for rectifying pulses developed in the high voltage transformer for developing a direct current voltage proportional thereto for providing an additional bias voltage for the automatic frequency control (AFC) transistor. If the developed high voltage pulse becomes excessive, the corresponding increased bias supplied to the AFC transistor causes an increase in the horizontal oscillator frequency resulting in an unviewable raster.
Abstract translation: 用于电视接收机的故障安全高压保护电路包括用于整流在高压变压器中产生的脉冲的装置，用于形成与其成比例的直流电压，以为自动频率控制（AFC）晶体管提供额外的偏置电压。 如果开发的高电压脉冲变得过大，则提供给AFC晶体管的相应增加的偏置导致水平振荡器频率的增加，导致不可观察的光栅。
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公开(公告)号：FR2551297B1
公开(公告)日：1991-08-16
申请号：FR8413382
申请日：1984-08-29
Applicant: RCA CORP
Inventor： FERNSLER RONALD EUGENE , YOST THOMAS DALE
Abstract: A keying pulse generator for a color television burst gate provides a gating pulse in response to horizontal synchronizing pulses when present and in response to horizontal retrace pulses when sync pulses are absent. A timing circuit is provided to maintain a constant width keying pulse independent of video signal condition and receiver operating characteristics.
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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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公开(公告)号：FR2551297A1
公开(公告)日：1985-03-01
申请号：FR8413382
申请日：1984-08-29
Applicant: RCA CORP
Inventor： FERNSLER RONALD EUGENE , YOST THOMAS DALE
Abstract: A keying pulse generator for a color television burst gate provides a gating pulse in response to horizontal synchronizing pulses when present and in response to horizontal retrace pulses when sync pulses are absent. A timing circuit is provided to maintain a constant width keying pulse independent of video signal condition and receiver operating characteristics.
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公开(公告)号：GB2123246A
公开(公告)日：1984-01-25
申请号：GB8317404
申请日：1983-06-27
Applicant: RCA CORP
Inventor： FERNSLER RONALD EUGENE , VINEKAR SANJAY RAGHUVIR
Abstract: A television receiver incorporates synchronizing circuitry which provides different synchronizing characteristics to accommodate different program sources. Illustratively, for receivers having vertical countdown circuits, normal broadcast signal reception causes the vertical synchronizing window to be narrow and the AFC circuits to operate normally. When the video signals originate from a nonbroadcast source, such as a video tape recorder or a video disc player, the synchronizing window is caused to be wide and the AFC circuit speed is increased. The appropriate receiver synchronizing characteristic is selected in response to the selected channel input.
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Patent Agency Ranking
公开(公告)号：DE3232554A1
公开(公告)日：1983-03-10
申请号：DE3232554
申请日：1982-09-01
Applicant: RCA CORP
Inventor： KLIEBPHIPAT RAVADEE , FERNSLER RONALD EUGENE , HICKS JAMES EDWARD
Abstract: A television receiver incorporates a common mechanism for disabling the receiver via the high voltage or fault protection circuit and via the remote control during normal operation. In one embodiment, the protection circuit is energized by the remote control in order to turn the receiver off. The remote control is used to reset the protection circuit in order to turn the receiver on.
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公开(公告)号：FI63142B
公开(公告)日：1982-12-31
申请号：FI773704
申请日：1977-12-08
Applicant: RCA CORP
Inventor： FERNSLER RONALD EUGENE , PEER JOHN CHARLES , LUZ DAVID WARREN
IPC: H04N3/18
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公开(公告)号：FR2499796A1
公开(公告)日：1982-08-13
申请号：FR8202172
申请日：1982-02-10
Applicant: RCA CORP
Inventor： FERNSLER RONALD EUGENE , STECKLER STEVEN ALAN , BALABAN ALVIN REUBEN
Abstract: A horizontal deflection turn-on circuit operates in the absence of trigger pulse normally derived by an AFPC loop. Under normal operation, the AFPC loop generates the trigger pulses based on a synchronized phase relationship with sampled flyback pulses. During receiver start-up, the flyback pulses are not present and no trigger pulses are generated. The turn on circuit provides auxiliary pulses which occur later in time than the normal occurrence of the trigger pulses. Means are provided for applying the auxiliary pulses to the horizontal deflection circuit only in the absence of normal trigger pulses.
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公开(公告)号：MX4185E
公开(公告)日：1982-01-20
申请号：MX775977
申请日：1977-12-13
Applicant: RCA CORP
Inventor： FERNSLER RONALD EUGENE , PEER JOHN CHARLES , LUZ DAVID WARREN
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公开(公告)号：FR2456441A1
公开(公告)日：1980-12-05
申请号：FR8010304
申请日：1980-05-08
Applicant: RCA CORP
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