Patent ID: 6212326
Filing Date: 2001-04-03
Classification: H04N

Abstract:
Videocassette recorder (VCR) connectable to a television receiver through a first connection which has at least five pins, a first one to receive a video signal coming from a television receiver, a second one to output an unscrambled video signal toward the television receiver, a third one to receive an audio signal from the television receiver, a fourth one to output an unscrambled audio signal toward the television receiver and a fifth one to output a control signal from a microprocessor of the VCR, the VCR being also connectable to a decoder through a second connection which has at least five pins, a first one to output a video signal received on first pin of said first connection toward the decoder, a second one to input said unscrambled video signal from the decoder, a third one to output toward the decoder said audio signal received on said third pin of said first connection, a fourth one to input an unscrambled audio signal from said decoder, and a fifth one to input a control signal coming from the decoder toward the microprocessor of the VCR, the input and output video signal passing through a first controllable switch under the control of the microprocessor, the input and output audio signal passing through a second controllable switch under the control of the microprocessor of the VCR via a control line, wherein in a first stand-by mode, only the first controllable switch is switched ON, and wherein after reception of a control signal on the fifth pin of said second connection, a command is sent via said control line between the microprocessor and said second controllable switch to switch ON said second controllable switch, whereby the VCR is in a second stand-by mode, and a control signal is sent toward the fifth pin of the first connection to indicate to the television receiver that the video signal to be displayed is available at the second pin of the first connection.