Recording/reproducing apparatus for selectively processing monaural, stereo and bilingual signals
AssigneeSony Corporation
InventorsKenji Nakano, Hisayoshi Moriwaki, Keiichiro Shimada, Takao Takahashi
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Abstract
A system for use in recording/reproducing video and audio signals, where the audio signals to be recorded can consist of various kinds of signals such as stereo signals, bilingual signals, or monaural signals, in which the kind of audio signal that is present in the signal to be recorded is detected and a corresponding code is added to the audio signal prior to being encoded and recorded. During playback, the particular code is detected and used to control switches to select the corresponding proper audio reconverting system based on the detected code.
Claims16
An apparatus operable in any of a monaural, stereo or bilingual mode for recording and reproducing an information signal formed of a video signal and two channels of audio signals in a plurality of successive tracks on a record medium, each track being divided into at least two sections, comprising:
- an audio signal source;
- means connected to said audio signal source for generating two channels of audio signals;
- means for converting said audio signals into digital audio signals;
- means including filter circuitry responsive to signals from said source for generating a digital identification signal identifying one of said modes;
- recording means connected for recording said video signal, said digital audio signals, and said digital identification signal in said plurality of successive tracks so that said video signal is recorded in at least one of said sections of each track and said audio signals are recorded in another section of each track;
- means for reproducing said video signal, said audio signals and said identification signal from said record medium;
- means for detecting said identification signal from the reproduced signals and producing a control signal therefrom;
- and
- switching means connected to said reproduced audio signals and responsive to said control signal for selecting said one of said modes.
Apparatus operable in any of a monaural, stereo or bilingual mode for recording and reproducing an information signal formed of a video signal and audio signals in a plurality of successive tracks on a magnetic record medium, comprising:
- an audio signal source;
- means responsive to said source for generating two channels of audio signals;
- means for converting said audio signals into digital audio signals;
- means including filter circuitry responsive to said source for generating a digital identification signal identifying one of said modes;
- means for recording said video signal, said digital audio signals, and said identification signal in said successive tracks on said magnetic record medium;
- means for reproducing said video signal, said digital audio signals, and said identification signal from said successive tracks on said magnetic record medium;
- means responsive to said reproduced identification signal for producing a control signal therefrom;
- and
- output means responsive to the reproduced digital audio signals and to said control signal for selecting said one of said modes.
Dependencies are inferred from the claim text.