Optical disc reproducing apparatus

Details Optical disc reproducing apparatus Optical disc reproducing apparatus

1996-10-24

1997-11-18

Hindi, Nabil

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369124, G11B 0000

Patent

active

056894864

ABSTRACT:
An optical disc reproducing apparatus reproduces different encoded audio signals from a first optical disc carrying recorded first audio data which is previously digitally converted by a non-compression-encoding and a second optical disc carrying recorded second audio data which is previously digitally converted by a compression-encoding. The optical disc reproducing apparatus has: extracting circuit for extracting the first and second audio data; identifying circuit for identifying the optical disc; converting circuit for converting the second audio data to digital data obtained by the non-compression-encoding; designating circuit for designating compression-encoded data in order to transmit; relay circuit for selectively relaying and generating outputs of the extracting circuit and converting circuit in accordance with an identification signal; circuit for converting the digital data which is generated from the relay circuit to self-synchronous type data; and an output terminal for generating the self-synchronous type data to an external apparatus. When there is a designation from the designating circuit, the relay circuit forcedly relays the output of the extracting circuit.

REFERENCES:
patent: 4290122 (1981-09-01), Bates et al.
patent: 5225755 (1993-07-01), Okamoto

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