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:
Apr. 09, 1985
Filed:
Dec. 14, 1982
Junsuke Tokumitsu, Yokohama, JP;
Victor Company of Japan, Ltd., Kanagawa, JP;
Abstract
A magnetic recording and reproducing apparatus comprises first through fourth circuits. The first circuit edits and records a new video signal within a predetermined section of a magnetic tape which is pre-recorded with a video signal and a control signal on respective video and control tracks. The second circuit produces a new control signal having a frequency identical to that of the pre-recorded control signal. The third circuit reproduces the pre-recorded control signal from the tape while the first circuit is operating. The fourth circuit detects the existence of a control signal reproduced by the third circuit, and supplies the new control signal which is produced by the second circuit to the third circuit when the non-existence of the reproduced control signal is detected, so as to record the new control signal on the control track of the tape.