Automatic audio/video signal combination apparatus
First Claim
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1. An audio/video signal combination apparatus, comprising:
- a first analog/digital converter for converting an audio signal into audio digital data,a second analog/digital converter for converting a video signal into video digital data,a frame memory for storing said video digital data from said second analog/digital converter,a digital signal processor for receiving said audio digital data form said first analog/digital converter by outputting an input enable signal and processing said video digital data form said frame memory, andan automatic addressing unit for controlling an output from said frame memory and said second analog/digital converter by synchronizing said video digital data from said frame memory with said audio digital data in response to said input enable signal of said digital signal processor, to produce a synchronized digital signal.
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Abstract
An audio/video signal combination apparatus for a digital audio tape recorder, is capable of combining 10 bit audio signal with 5 bit video signal by an automatic addressing, comprising analog/digital converters for converting audio signal and video signal into 10 bit and 5 bit digital data, a frame memory for storing digitized video signal by one frame, a digital signal processor for processing the 10 bit audio data and the 5 bit video data to one byte recording signal, and an automatic addressing unit for inputting the 5 bit video data stored in the frame memory to the digital signal processor when the digital signal processor reads the 10 bit audio data.
21 Citations
7 Claims
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1. An audio/video signal combination apparatus, comprising:
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a first analog/digital converter for converting an audio signal into audio digital data, a second analog/digital converter for converting a video signal into video digital data, a frame memory for storing said video digital data from said second analog/digital converter, a digital signal processor for receiving said audio digital data form said first analog/digital converter by outputting an input enable signal and processing said video digital data form said frame memory, and an automatic addressing unit for controlling an output from said frame memory and said second analog/digital converter by synchronizing said video digital data from said frame memory with said audio digital data in response to said input enable signal of said digital signal processor, to produce a synchronized digital signal. - View Dependent Claims (2, 3)
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4. An audio/video signal combination apparatus, comprising:
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analog/digital converting means for converting an audio signal and a video signal into a digital audio signal and a digital video signal; and synchronizing means for synchronizing the digital audio signal and the digital video signal by reading the digital audio signal and the digital video signal to a magnetic tape in a time divisional manner using automatic addressing, said synchronizing means including, frame memory means for storing a frame of the digital video data, automatic addressing means for synchronizing the digital video data stored n said frame memory means with the digital audio data and a control signal, in response to an input enable signal to produce synchronized digital audio/video data, and digital signal processing means for processing the synchronized digital audio/video data and recording the processed digital audio/video data to the magnetic tape. - View Dependent Claims (5, 6, 7)
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Specification