CD player for reproducing signals from CD-OK and video CD

Claim 2

A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising: a first controller for generating a first control signal for signal reproduction of said CD-OK disk; a second controller for outputting audio and video data for reproduction of said CD-OK disk according to said first control signal received from said first controller and for outputting a second control signal for signal reproduction of said video CD; a compressed signal decoding portion, responsive to said second control signal, for restoring compressed video data and compressed audio data received during said video CD reproduction, into decompressed video data and audio data, respectively; a first memory for storing control data of said CD-OK disk and data for said first controller during said CD-OK reproduction and for storing control data of said video CD and data for said first controller during said video CD reproduction; a second memory, accessed by said second controller, for storing data for a still screen and superposed data of said CD-OK disk during said CD-OK reproduction and for storing said compressed video and audio data during said video CD reproduction; a first digital-to-analog converter for converting the CD-OK video data output from said second controller into an analog RGB image signal; a second digital-to-analog converter for converting image data output from said compressed signal decoding portion into an analog RGB image signal; a first switch for selecting one of the RGB image signals output from one of said first and second digital-to-analog converters, according to a selection signal from said second controller; a video encoder for converting the RGB image signal output from said first switch into a composite image signal and for outputting the converted signal; and a second switch for selecting one of the video CD audio signal output from said compressed signal decoding portion and the CD-OK audio signal output from said second controller, and for outputting the result.

Claim 3

The CD player according to claim 1 further comprising: a buffer means connected between said compressed signal decoding portion and said second memory for providing access to said second memory by said compressed signal decoding portion.

Claim 4

A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising: a first controller for generating a first control signal for signal reproduction of said CD-OK disk; a second controller for outputting audio and video data for reproduction of said CD-OK disk according to said first control signal received from said first controller and for outputting a second control signal for signal reproduction of said video CD; a compressed signal decoding portion, responsive to said second control signal, for restoring compressed video data and compressed audio data received during said video CD reproduction, into decompressed video data and audio data, respectively; a first memory for storing control data of said CD-OK disk and data for said first controller during said CD-OK reproduction and for storing control data of said video CD and data for said first controller during said video CD reproduction; a second memory, accessed by said second controller, for storing data for a still screen and superposed data of said CD-OK disk during said CD-OK reproduction and for storing said compressed video and audio data during said video CD reproduction; a first digital-to-analog converter for converting the CD-OK video data output from said second controller into an analog RGB image signal; a second digital-to-analog converter for converting image data output from said compressed signal decoding portion into an analog RGB image signal; a first switch for selecting one of the RGB image signals output from one of said first and second digital-to-analog converters, according to a selection signal from said second controller; a video encoder for converting the RGB image signal output from said first switch into a composite image signal and for outputting the converted signal; and a second switch for selecting one of an audio signal from an external CD and the video CD audio signal output from said compressed signal decoding portion; a third digital-to-analog converter for converting the selected output from said second switch; and a third switch for selecting one of the output of said third digital-to-analog converter and the CD-OK audio signal output from said second controller.

Claim 5

A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising: a first controller for generating a first control signal for signal reproduction of said CD-OK disk; a second controller for outputting audio and video data for reproduction of said CD-OK disk according to said first control signal received from said first controller and for outputting a second control signal for signal reproduction of said video CD; a compressed signal decoding portion, responsive to said second control signal, for restoring compressed video data and compressed audio data received during said video CD reproduction, into decompressed video data and audio data, respectively; a first memory for storing control data of said CD-OK disk and data for said first controller during said CD-OK reproduction and for storing control data of said video CD and data for said first controller during said video CD reproduction; a second memory, accessed by said second controller, for storing data for a still screen and superposed data of said CD-OK disk during said CD-OK reproduction and for storing said compressed video and audio data during said video CD reproduction; a first digital-to-analog converter for converting the CD-OK video data output from said second controller into an analog RGB image signal; a second digital-to-analog converter for converting image data output from said compressed signal decoding portion into an analog RGB image signal; a first switch for selecting one of the RGB image signals output from one of said first and second digital-to-analog converters, according to a selection signal from said second controller; a video encoder for converting the RGB image signal output from said first switch into a composite image signal and for outputting the converted signal; and a second switch for selecting one of an audio signal from an external CD and the video CD audio signal output from said compressed signal decoding portion; a third digital-to-analog converter for converting the selected output from said second switch; and a third switch for selecting one of the output of said third digital-to-analog converter and the CD-OK audio signal output from said second controller.

Claim 6

The CD player according to claim 3 further comprising: a buffer means connected between said compressed signal decoding portion and said second memory for providing access to said second memory by said compressed signal decoding portion.

Claim 7

A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising: a first controller for generating a first control signal for signal reproduction of said CD-OK disk; a second controller for outputting audio and video data for reproduction of said CD-OK disk according to said first control signal received from said first controller and for outputting a second control signal for signal reproduction of said video CD; a compressed signal decoding portion, responsive to said second control signal, for restoring compressed video data and compressed audio data received during said video CD reproduction, into decompressed video data and audio data, respectively; a first memory for storing control data of said CD-OK disk and data for said first controller during said CD-OK reproduction and for storing control data of said video CD and data for said first controller during said video CD reproduction; a second memory, accessed by said second controller, for storing data for a still screen and superposed data of said CD-OK disk during said CD-OK reproduction and for storing said compressed video and audio data during said video CD reproduction; a first digital-to-analog converter for converting the CD-OK video data output from said second controller into an analog RGB image signal; a second digital-to-analog converter for converting image data output from said compressed signal decoding portion into an analog RGB image signal; a sound source portion for processing the CD-OK audio data output from said second controller to produce a sound reproduction signal; a first switch for selecting one of the RGB image signals output from one of said first and second digital-to-analog converters, according to a selection signal from said second controller; a video encoder for converting the RGB image signal output from said first switch into a composite image signal and for outputting the converted signal; and a second switch for selecting one of the video CD audio signal output from said compressed signal decoding portion and the sound reproduction signal output from said sound source portion and for outputting the selected signal.

Claim 8

A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising: a first controller for generating a first control signal for signal reproduction of said CD-OK disk; a second controller for outputting audio and video data for reproduction of said CD-OK disk according to said first control signal received from said first controller and for outputting a second control signal for signal reproduction of said video CD; a compressed signal decoding portion, responsive to said second control signal, for restoring compressed video data and compressed audio data received during said video CD reproduction, into decompressed video data and audio data, respectively; a first memory for storing control data of said CD-OK disk and data for said first controller during said CD-OK reproduction and for storing control data of said video CD and data for said first controller during said video CD reproduction; a second memory, accessed by said second controller, for storing data for a still screen and superposed data of said CD-OK disk during said CD-OK reproduction and for storing said compressed video and audio data during said video CD reproduction; a first digital-to-analog converter for converting the CD-OK video data output from said second controller into an analog RGB image signal; a second digital-to-analog converter for converting image data output from said compressed signal decoding portion into an analog RGB image signal; a sound source portion for processing the CD-OK audio data output from said second controller to produce a sound reproduction signal; a first switch for selecting one of the RGB image signals output from one of said first and second digital-to-analog converters, according to a selection signal from said second controller; a video encoder for converting the RGB image signal output from said first switch into a composite image signal and for outputting the converted signal; and a second switch for selecting one of the video CD audio signal output from said compressed signal decoding portion and the sound reproduction signal output from said sound source portion and for outputting the selected signal.

Claim 9

The CD player according to claim 5 further comprising: a buffer means connected between said compressed signal decoding portion and said second memory for providing access to said second memory by said compressed signal decoding portion.