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:
Mar. 28, 1995
Filed:
Dec. 10, 1993
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; H04N / ;
U.S. Cl.
CPC ...
360 7716 ; 360 102 ; 360 103 ;
Abstract
A tracking apparatus for helical scan video tape recorders comprises four movable video heads situated on a scanning drum such that phase compensation information can be determined using the scanner rotational information, the tape speed, and tape position. The phase compensation information is used to adjust the video heads thereby reproducing high quality video signals with smooth movement pictures from varying speed helical scan video tape recorders.