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:
Jul. 13, 1982
Filed:
Aug. 24, 1979
U.S. Philips Corporation, New York, NY (US);
Abstract
A recording system for recording signals on a magnetic tape uses a recording apparatus and cassettes, each cassette containing a specific length of magnetic tape, and has a timer for setting time-preprogrammed automatic recordings. A detection unit determines the maximum time available for recording on a cassette placed in the apparatus and a comparator compares an output signal of the detection unit with a reference quantity which is a measure of the total time required for the preprogrammed automatic recording(s). When this required time exceeds the maximum time available for recording with this cassette, an alarm signal is produced. The cassette has marks which are sensed by the detection unit and which indicate the length of the magnetic tape in the cassette.