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:
Sep. 25, 1984
Filed:
Jul. 28, 1982
Joseph L Corkery, San Carlos, CA (US);
Sony Corporation, Tokyo, JP;
Abstract
An improved controller for a VTR is disclosed. The VTR has a time code reader and a tape time reader, each generating a signal representative of the time length of the material recorded on the tape. The time code reader generates a signal derived from the time code recorded on the tape. The tape time reader generates a signal derived from the signals generated by a tachometer, connected to the tape transport mechanism. An interpolated time code is generated by means which adds an offset value to this tachometer derived time data. The offset value is periodically calculated by means which determines the difference between the time code data and the tachometer time code data after first determining that the tape speed has exceeded a predetermined threshold speed for a predetermined period of time. If the tape speed has not exceeded this predetermined threshold speed, then the last calculated offset is added to the tachometer derived data.