US 4,604,655 AGranted

Method of recording and reproducing video format signal

AssigneePioneer Electronic Corporation

InventorYoshiaki Moriyama

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Abstract

A method of recording and reproducing a video format signal on and from a recording medium, wherein the video format signal is reproduced on a two-dimensional picture area divided into sections having predetermined identification numbers respectively allocated thereto, the sections consisting of at least one section for inserting sound information, at least one section for inserting control information and remaining sections for inserting picture information. The control information contains pieces of information indicative of the identification number of the section into which the sound information is to be inserted. The sound and control information is recorded on the recording medium in the form of binary codes each consisting of a predetermined number of bits, each of which is modulated to have its level inverted between every adjacent two bits before the bit is recorded on the recording medium. An occurrence of a burst error is detected through detection of non-inverted bits in the aforesaid binary codes during reproduction of the picture and sound information.

Claims29

Dependent claims

A method of recording and reproducing a video format signal containing picture information, sound information and control information comprising:

forming said control information as data indicative of identification numbers of sections of a two-dimensional picture format into which said sound information is to be inserted,
recording said sound information and said control information on said recording medium in the form of binary signals each comprising a predetermined number of bits of data,
modulating each of said binary signals before recordation on said recording medium such that the signal level is inverted between every adjacent two bits,
reproducing the video format signal on said recording medium in a two-dimensional picture format which is divided into a plurality of sections having predetermined identification numbers respectively allocated thereto, said sections comprising at least one section for inserting said sound information in accordance with said control information, at least one section for inserting said control information and remaining sections for inserting said picture information,
monitoring the inversions of signal level during reproduction of said picture and sound information;
and
signaling an occurrence of a burst error in response to a break in the regularity of inversions of signal level during reproduction of said picture and sound information.

4 more elements

Dependencies are inferred from the claim text.