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:
Jun. 28, 1988
Filed:
Nov. 10, 1986
Applicant:
Inventors:
Assignee:
Teac Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; G11B / ;
U.S. Cl.
CPC ...
358310 ; 369 32 ; 369275 ; 369 44 ; 358342 ;
Abstract
An information recording disc comprises a guide track, an address signal recording portion arranged in each track turn of the guide track and pre-recorded with an address signal, and a pseudo address signal recording portion arranged in each track turn of the guide track adjacent a corresponding address signal recording portion provided in a track turn of the guide track adjacent thereto. The recording length of the pseudo address signal recording portion is selected approximately equal to the recording length of the corresponding address signal recording portion.
Nagai, Tadao. (1988). Information recording disc pre-recorded with address and pseudo address (U.S. Patent No. 4754339). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4754339
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile