-
公开(公告)号：JPS63110878A
公开(公告)日：1988-05-16
申请号：JP25278186
申请日：1986-10-22
Applicant: RCA CORP
Inventor： TAMER GREGORY GEORGE , HOLLINDEN DAVID EDWARD
-
公开(公告)号：IT1173760B
公开(公告)日：1987-06-24
申请号：IT2025084
申请日：1984-03-27
Applicant: RCA CORP
Inventor： TAMER GREGORY GEORGE
Abstract: An arrangement for a television receiver is disclosed which facilitates the coupling of synchronization signals to an on-screen display integrated circuit of the receiver. The receiver includes sources of periodic vertical and horizontal rate pulses. A composite timing signal generator combines the vertical and horizontal rate pulses so as to form a composite timing signal in which the horizontal rate pulses are absent during the duration of each vertical rate pulse. The composite timing signal is coupled via a single conductor path to an input terminal of the on-screen display circuit. The composite timing signal can be readily decoded by a simple digital counter to provide separate horizontal and vertical rate pulses for the on-screen display circuit.
-
公开(公告)号：GB2167620A
公开(公告)日：1986-05-29
申请号：GB8430040
申请日：1984-11-28
Applicant: RCA CORP
Abstract: A multiplier for multiplying the modulated sound and picture carriers to produce an intercarrier sound signal in a quasi-parallel sound channel of an IF section has a pair of anti-parallel connected diodes in a limiter for generating an amplitude limited version of the picture carrier. It has been discovered that the varying capacitance of the diodes with picture amplitude can cause phase shifts and hence phase modulation interference in the intercarrier signal. The latter is especially troublesome for stereo sound reproduction. To reduce such interference, a low value resistor is shunt coupled to the diodes to inhibit the capacitance variations of the diodes and resulting undesired phase modulation in the intercarrier sound signal.
-
公开(公告)号：FR2543772A1
公开(公告)日：1984-10-05
申请号：FR8405080
申请日：1984-03-30
Applicant: RCA CORP
Inventor： TAMER GREGORY GEORGE
Abstract: An arrangement for a television receiver is disclosed which facilitates the coupling of synchronization signals to an on-screen display integrated circuit of the receiver. The receiver includes sources of periodic vertical and horizontal rate pulses. A composite timing signal generator combines the vertical and horizontal rate pulses so as to form a composite timing signal in which the horizontal rate pulses are absent during the duration of each vertical rate pulse. The composite timing signal is coupled via a single conductor path to an input terminal of the on-screen display circuit. The composite timing signal can be readily decoded by a simple digital counter to provide separate horizontal and vertical rate pulses for the on-screen display circuit.
-
公开(公告)号：IT1209601B
公开(公告)日：1989-08-30
申请号：IT2373384
申请日：1984-11-26
Applicant: RCA CORP
Abstract: A multiplier for multiplying the modulated sound and picture carriers to produce an intercarrier sound signal in a quasi-parallel sound channel of an IF section has a pair of anti-parallel connected diodes in a limiter for generating an amplitude limited version of the picture carrier. It has been discovered that the varying capacitance of the diodes with picture amplitude can cause phase shifts and hence phase modulation interference in the intercarrier signal. The latter is especially troublesome for stereo sound reproduction. To reduce such interference, a low value resistor is shunt coupled to the diodes to inhibit the capacitance variations of the diodes and resulting undesired phase modulation in the intercarrier sound signal.
-
Patent Agency Ranking
公开(公告)号：FR2555848B1
公开(公告)日：1988-12-30
申请号：FR8418123
申请日：1984-11-28
Applicant: RCA CORP
Abstract: A multiplier for multiplying the modulated sound and picture carriers to produce an intercarrier sound signal in a quasi-parallel sound channel of an IF section has a pair of anti-parallel connected diodes in a limiter for generating an amplitude limited version of the picture carrier. It has been discovered that the varying capacitance of the diodes with picture amplitude can cause phase shifts and hence phase modulation interference in the intercarrier signal. The latter is especially troublesome for stereo sound reproduction. To reduce such interference, a low value resistor is shunt coupled to the diodes to inhibit the capacitance variations of the diodes and resulting undesired phase modulation in the intercarrier sound signal.
-
公开(公告)号：GB2140241B
公开(公告)日：1987-01-28
申请号：GB8407986
申请日：1984-03-28
Applicant: RCA CORP
Inventor： TAMER GREGORY GEORGE
Abstract: An arrangement for a television receiver is disclosed which facilitates the coupling of synchronization signals to an on-screen display integrated circuit of the receiver. The receiver includes sources of periodic vertical and horizontal rate pulses. A composite timing signal generator combines the vertical and horizontal rate pulses so as to form a composite timing signal in which the horizontal rate pulses are absent during the duration of each vertical rate pulse. The composite timing signal is coupled via a single conductor path to an input terminal of the on-screen display circuit. The composite timing signal can be readily decoded by a simple digital counter to provide separate horizontal and vertical rate pulses for the on-screen display circuit.
-
公开(公告)号：DE3412863A1
公开(公告)日：1984-10-18
申请号：DE3412863
申请日：1984-04-05
Applicant: RCA CORP
Inventor： TAMER GREGORY GEORGE , HERMELING GILBERT CHARLES
IPC: H03K17/76
Abstract: A video or rf switch includes a common port (538) and a plurality of second ports (A,B,C) to which the common port may be coupled by a plurality of switch sections in a single pole, multiple throw configuration. Each switch section includes a diode (514,522,612) coupled to the common port and a source of voltage (523,530,617) for energizing the diode. Conduction through the diode forward-biases it and causes current flow through a common biasing resistor (536). The voltage developed across the resistor back-biases the diodes of the other switch sections. A common blocking capacitor (516) keeps the back-bias voltage away from the common port.
-
公开(公告)号：GB2167620B
公开(公告)日：1987-12-09
申请号：GB8430040
申请日：1984-11-28
Applicant: RCA CORP
Abstract: A multiplier for multiplying the modulated sound and picture carriers to produce an intercarrier sound signal in a quasi-parallel sound channel of an IF section has a pair of anti-parallel connected diodes in a limiter for generating an amplitude limited version of the picture carrier. It has been discovered that the varying capacitance of the diodes with picture amplitude can cause phase shifts and hence phase modulation interference in the intercarrier signal. The latter is especially troublesome for stereo sound reproduction. To reduce such interference, a low value resistor is shunt coupled to the diodes to inhibit the capacitance variations of the diodes and resulting undesired phase modulation in the intercarrier sound signal.
-
公开(公告)号：FR2555848A1
公开(公告)日：1985-05-31
申请号：FR8418123
申请日：1984-11-28
Applicant: RCA CORP
Abstract: A multiplier for multiplying the modulated sound and picture carriers to produce an intercarrier sound signal in a quasi-parallel sound channel of an IF section has a pair of anti-parallel connected diodes in a limiter for generating an amplitude limited version of the picture carrier. It has been discovered that the varying capacitance of the diodes with picture amplitude can cause phase shifts and hence phase modulation interference in the intercarrier signal. The latter is especially troublesome for stereo sound reproduction. To reduce such interference, a low value resistor is shunt coupled to the diodes to inhibit the capacitance variations of the diodes and resulting undesired phase modulation in the intercarrier sound signal.
-
-
-
-
-
-
-
-
-
Search Results
25
records
(took 0.022 seconds)
