Patent
Constant width burst gate keying pulse generator
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TLDR
In this article, a keying pulse generator for a color television burst gate provides a gutting pulse in response to horizontal synchronizing pulses when present and a retrace pulse when absent.Abstract:
OF THE DISCLOSURE A keying pulse generator for a color television burst gate provides a gutting 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.read more
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Patent
Burst gate pulse generating circuit
Hideyuki C,Teruo C +1 more
TL;DR: In this paper, a burst gate pulse generating circuit was proposed, which includes a sync separation circuit (32) for separating a synchronizing signal from a composite video signal having a preset burst period and an integrating circuit (38) for integrating the separated signal.
Patent
Circuit for separation synchronizing signals from a composite video signal
TL;DR: An integrated circuit for improved burst gate pulse separation and for use in a digital video system receives a positive composite video signal from which horizontal, vertical and composite synchronizing signals and a burst gate signal signal are separated as discussed by the authors.
References
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Patent
Controlled output composite keying signal generator for a television receiver
TL;DR: In this article, a burst gate circuit and a voltage translating network are combined to produce a composite keying signal, which consists of a first pulse component of a desired level as determined by the translating network and occurring during the blanking intervals, and a second pulse cmponent as provided from the burst-gate circuit, superimposed on the first pulse and encompassing the burst interval.
Patent
Burst gating signal generating circuit
TL;DR: In this article, a circuit for generating an accurately-timed noise-free signal for gating the chrominance burst portion of the composite video signal is presented, where the output pulses are then applied to a gating diode that is conductive only when those pulses have an amplitude above a predetermined bias level.
Patent
Burst gate pulse generator
TL;DR: In this paper, a burst gate pulse generating circuit with a switching transistor has been proposed, where the transistor conducts in response to an input pulse, and a resulting ringing waveform is used in conjunction with the inverse conduction characteristic of the transistor to turn off the transistor prior to the completion of one full cycle of ringing.
Patent
Burst gate circuit
TL;DR: In this paper, a burst gate pulse generating circuit includes a normally saturated transistor responsive to a pulse representative of a horizontal sync component of a video signal, which includes a burst interval, coupled to a base input of the transistor via an RC differentiating network for causing the transistor to operate between saturated and cut-off states, such that a gate pulse produced at the transistor collector output is delayed relative to the sync pulse and substantially coincides with burst interval.