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:
Jul. 19, 2011
Filed:
Jun. 19, 2007
Applicants:
Hideyuki Muto, Tokorozawa, JP;
Junichi Furukawa, Tokorozawa, JP;
Yoshio Sasaki, Tokorozawa, JP;
Inventors:
Assignee:
Pioneer Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 20/00 (2006.01); G11B 5/00 (2006.01); G11B 5/52 (2006.01); G11B 5/55 (2006.01); G11B 7/125 (2006.01); G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data recording/reproducing system () reads a recording signal written on a recording track of a recording medium (), by using light, which is modulated by a drive signal wherein a frequency signal is superposed for scanning the signal along the recording track at a prescribed scanning speed. Then, the system reproduces the read signal as data. The data recording/reproducing system is provided with a computer () for controlling the superposition frequency of the frequency signal for the drive signal corresponding to the scanning speed, and an LD driver ().