Patent ID: 6043850
Filing Date: 2000-03-28
Classification: H04N

Abstract:
A burst gate pulse signal generation circuit for generating a burst gate pulse signal representing a time period during which a burst signal is present within a composite video signal, wherein each period of the composite video signal includes a horizontal sync pulse, the burst signal and a video information signal, comprising:a. a control circuit configured for receiving a sync pulse signal which is active when the horizontal sync pulse is present within the composite video signal;b. a first timing circuit coupled to the control circuit for activating the burst gate pulse signal a first predetermined period of time after the horizontal sync pulse is deactivated, wherein the burst gate pulse signal is activated before the burst signal is present within the composite video signal; andc. a second timing circuit coupled to the control circuit for deactivating the burst gate pulse signal a second predetermined period of time after the horizontal sync pulse is deactivated, wherein the burst gate pulse signal is deactivated after the burst signal is present and before the video information signal is present within the composite video signal.