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. 16, 1991
Filed:
Aug. 07, 1989
Jurgen Heitmann, Alsbach-Hahnlein, DE;
BTS Broadcast Television Systems GmbH, Darmstadt, DE;
Abstract
A rotary scanning device of a magnetic tape recording and playback equipment, which carries a set of recording heads and a set of playback heads on its periphery is provided with one rotary transformer in addition to the number equal to the number of recording heads and to the number of playback heads of said sets. The additional rotary transformer is used for cyclically connecting its rotor to the respective playback heads during a recording operation by means of a controlled transfer switch, so that a fraction of the signals recorded by each of the recording heads is made available for an after-check which can be performed without visual display because of the digital nature of the recorded signals, which are evaluated by error recognition and word count circuits.