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:
Dec. 27, 1988
Filed:
Apr. 21, 1987
Hiroaki Furuyama, Higashiyamato, JP;
Teac Corporation, Musashino, JP;
Abstract
A method and apparatus for preventing duplex recording on an information recording medium comprising unrecorded tracks and pre-recorded tracks detects an unrecorded track having a starting address where a recording is to be started, detects a first pre-recorded track occurring after the unrecorded track, confirms an address of the first pre-recorded track by reproducing address signals from vicinities of the first pre-recorded track, records an information signal on unrecorded tracks occurring after the unrecorded track having the starting address, and forcibly stops the recording of the information signal at an unrecorded track having an address which is one less than the address of the first pre-recorded track.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile