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:
Sep. 18, 2001
Filed:
Feb. 06, 1998
Jong-gyu Lee, Suwon, KR;
Gyu-yeong Son, Suwon, KR;
Abstract
A method for low-speed reproducing in a video cassette recorder (VCR) having a pair of main heads for normal-speed reproducing and at least a pair of additional heads neighboring said main heads is disclosed. A period which is regularly repeated from an envelope waveform of a video signal reproduced by said main heads is detected. The voltage level of the detected envelope waveform is then compared with a voltage level of the envelope waveform detected by the additional heads by generating a pseudo head switching pulse for switching the operation state of said main heads and additional heads according to the detected period. And, a reproduced signal from one of the said main and additional heads which has the envelope waveform having a high voltage level detected, thereby reproducing a high quality continuous time varying image without a noise.