CD player for reproducing signals from CD-OK and video CD
First Claim
1. 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.
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Accused Products
Abstract
A CD player for reproducing signals stored on CD-OK and video compact disks (VCD) includes a first controller for controlling CD-OK reproduction; a second controller for outputting audio and video data for CD-OK reproduction and a control signal for VCD reproduction; a decoder for restoring compressed video and audio data; a first storage for storing control data for processing CD-OK signals during CD-OK reproduction and for storing control data for processing VCD during VCD reproduction; a second storage for storing data for a still screen and superposed data of the CD-OK disk during CD-OK reproduction and for storing video and audio data during VCD reproduction; a first digital-to-analog converter for converting the CD-OK video data output from the second controller into an analog image signal; a second digital-to-analog converter for converting image data output from the decoder into an analog image signal; a first switch for selecting one of the image signals output from one of the digital-to-analog converters; a video encoder for converting the image signal output from the first switch into a composite image signal; and a second switch for selecting an audio output, thus integrating CD-OK and VCD reproduction circuits to reduce manufacturing costs for an integrated system.
250 Citations
6 Claims
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1. A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising:
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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. - View Dependent Claims (2)
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3. A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising:
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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. - View Dependent Claims (4)
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5. A compact disc (CD) player for reproducing signals from a CD-OK disk and a video CD, comprising:
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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. - View Dependent Claims (6)
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Specification