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:
Oct. 23, 1984
Filed:
Feb. 23, 1982
Kazuo Kamei, Saitama, JP;
Akira Orimoto, Saitama, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A process for calculating the amount of recording tape or time left remaining on a tape reel includes sensing the rotational period of both the supply and take-up reels, and performing operations on this data to derive the value for the remaining/transported tape amount, the operations performed depending upon the direction of tape travel. In addition, the process may include disregarding data obtained during times of highly variable tape speed, such as when changing tape transport direction, etc. The invention may be used in connection with a reversible-type tape recorder capable of reproduction or recording in both tape transport directions.