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:
Jan. 09, 2001
Filed:
May. 29, 1998
Chul-Min Kim, Anyang, KR;
Masamitsu Seki, Tokyo, JP;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A magnetic recording and reproduction apparatus corrects recording characteristics of a video signal. The apparatus comprises a luminance test signal generator for generating a frequency-modulated luminance test signal using a predetermined voltage, and a chroma test signal generator for generating a chroma test signal having a lower frequency. A recording level adjuster respectively adjusts levels of the frequency-modulated luminance test signal and the chroma test signal based on corresponding luminance and chroma recording levels. A recording unit mixes signals level-adjusted by the recording level adjuster to record a mixed test signal on a magnetic tape. A readout and preamplifying unit reads out the mixed test signal from the magnetic tape and preamplifies the read-out signal. A controller determines an optimal luminance recording level and an optimal chroma recording level to record a video signal on the magnetic tape based on the mixed test signal, and supplies the determined luminance recording level and chroma recording level to the recording level adjusting means. Accordingly, the apparatus sets optimal recording levels of the video signal capable of maximizing enhancement of the performance of the tape within a short period of time, and records the video signal, thereby improving a signal-to-noise ratio of the luminance signal and the color signal.