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.

Date of Patent:
Apr. 09, 2002

Filed:

Apr. 14, 1998
Applicant:
Inventors:

Chul-Min Kim, Anyang, KR;

Masamitsu Seki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/91 ; H04N 7/00 ; G11B 2/736 ;
U.S. Cl.
CPC ...
H04N 5/91 ; H04N 7/00 ; G11B 2/736 ;
Abstract

A magnetic recording and reproduction apparatus having a recording characteristic correction function corrects a recording characteristic according to characteristics of tape and head mechanism, to provide an optimal recording condition. The apparatus of the present invention records a test signal for measuring the characteristics of the tape and the head mechanism on tape, reproduces the recorded test signal, and then obtains a recording level at the time when reproduced output is maximized and a sideband level at the time when a ratio of a carrier component and a lower sideband component reaches a predetermined target value, respectively. Accordingly, an input video signal is modulated according to the obtained results. Thus, an effect is provided so that a signal can be recorded in an optimal recording condition irrespective of a deviation of the tape and the head.


Find Patent Forward Citations

Loading…