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:
Dec. 27, 1988
Filed:
Jul. 28, 1986
Applicant:
Inventor:
Yoshiaki Doyama, Hirakata, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 70 ; 360 102 ; 360 7308 ; 360 7707 ;
Abstract
A reproducing apparatus wherein control of rotation of a rotary head, control of tape transportation and a control of the tracking of the head adjusting actuator are processed in a time-share fashion by a data processing device. The control is carried out by using a timer circuit, which has a period of one or several integer times the period of rotation of the rotary head. Computing processes for the above controls are selectively carried out on a time-shared basis. By using a DC component of the tracking error signal, a track transporting system capable of noiseless playback, and which has a wide range of tracking control.