Patent ID: 7224884
Filing Date: 2007-05-29
Classification: H04N

Abstract:
1. A video signal processing integrated circuit for use in a video recording/reproducing apparatus, the video signal processing integrated circuit comprising, as a single chip: a video recording/reproducing processor for providing a video signal to be recorded on a storage medium and for reproducing a video signal recorded on said storage medium; a composite synchronization dividing unit for separating a composite synchronization signal from a video signal output by said video recording/reproducing processor; a vertical synchronization dividing unit for separating a vertical synchronization signal from the composite synchronization signal; a quasi vertical synchronization inserting unit for inserting a quasi vertical synchronization signal in the video signal output from said video recording/reproducing processor; a single pin port for outputting the vertical synchronization signal from said video signal processing integrated circuit and inputting a quasi vertical synchronization signal to said video signal processing integrated circuit, said single pin port to operate as an input port for inputting said quasi vertical synchronization signal in a special reproducing mode, and to operate as an output port for outputting the vertical synchronization signal in all other modes of said video signal processing integrated circuit; and a switching unit for providing the vertical synchronization signal, which is input from the vertical synchronization dividing unit, to the pin port, or providing the quasi vertical synchronization signal, which is input from the pin port, to the quasi vertical synchronization inserting unit.