The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 1990
Filed:
Jul. 08, 1988
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A novel digital signal recording and reproducing apparatus is disclosed in which an audio digital signal is recorded and reproduced alone or together with a video signal in a video tape recorder. If the sampling frequency of the audio signal is not an integral multiple of the vertical synchronous signal of the video signal, the audio signal is divided among fields in accordance with a predetermined regularity, and then the field information for identifying the number of samples of the audio digital signal is added and recorded for each field. At the time of reproduction, the field information is read to identify the number of samples of the audio digital signal, thus picking out only the audio signal excepting the redundant portions. In adding or inserting a signal of tape 2 to tape 1, the reproduced signal of tape 2 is divided and recorded again among the fields on the basis of the field information obtained from the reproduced signal of tape 1 in such a manner as to satisfy the regularity with which the audio signal already recorded in tape 1 is divided among the fields.