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:
Nov. 30, 1993
Filed:
Apr. 19, 1991
Gerd Reime, Schomberg, DE;
Abstract
A video recorder for recording and reproducing video signals having a bandwidth with a limited upper transmission frequency, including HDTV signals. A recording signal processing circuit (14) with a first scanning circuit (10.1) for scanning the video signal to be recorded with first scanning recording pulses of a first scanning frequency that is at least equal to the limited upper transmission frequency, for providing the first recording signal (AS1), and a second scanning circuit (10.2) for scanning the video signal to be recorded with second scanning recording pulses that are displaced through half a cycle with respect to the first scanning pulses of the first scanning circuit (10.1), and having a second scanning frequency equal to the first scanning frequency, for providing the second recording signal (AS2). A recording/playback circuit (15, 16) includes recording-reproducing heads (11.1, 11.2) in close proximity to each other, for recording two recording signals (AS1, AS2) on two adjacent tracks of a magnetic tape (12), and for reading playback signals (LS1, LS2). The playback signal generating device (17 ) has a playback scanning switch (13) for alternately and successively scanning the playback signals (LS1, LS2) with playback scanning pulses, the switch (13) having a scanning frequency with pulses repeating at twice the first scanning frequency, for providing a composite playback video signal having the limited upper transmission frequency.