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AssigneesSony Corporation, Willi Studer AG
InventorsToshitada Doi, Claudia Brandes, Roger Lagadec
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Described is a method for PCM signal recording in which, when single-channel or multichannel PCM signals are recorded so that one-channel PCM signals are recorded in plural recording tracks, the input PCM signals of one channel are correspondingly distributed to the plural recording tracks with at least one word as a unit, and in which the distributed plural signals are subjected to an encoding operation independently of one another and are recorded on the plural recording tracks. In distributing the input PCM signals by word units, word groups consisting of a predetermined number of consecutive words are sequentially distributed to the recording tracks, or plural consecutive words equal in number to the number of recording tracks are distributed to the tracks. In encoding, the input words are separated as a function of whether the input word numbers are odd or even, and the words thus separated are subjected to time delaying or interleaving operations, after which the odd and even number words are synthesized.
A method for PCM signal recording wherein each channel of a multiple channel input PCM signal formed of a plurality of words is subjected to distribution to a plurality of recording tracks, characterized by the steps of selecting the number of tracks in which each said channel is to be divided, determining a distribution matrix pattern for said input signal words over said selected number of tracks, distributing said words in said channels to said recording tracks switching distributing means in accordance with said determined distribution matrix pattern, and in that the PCM signals composed of the distributed words and corresponding to the respective tracks are supplied to a plurality of recording heads via a corresponding plurality of separate encoders adapted to correct for coding error so that recording is made in such a manner that a plurality of recording tracks, determined in number as the product of the selected number of tracks and the number of channels, are formed on a recording medium.
Dependencies are inferred from the claim text.