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. 16, 1997
Filed:
Feb. 16, 1996
Masaharu Moritsugu, Kawasaki, JP;
Fuminori Setoyama, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An AC amplifying circuit is AC coupled through capacitors to a current/voltage converting circuit for converting a photosensitive current of a reproduction light from an optical disk medium to a voltage signal and for outputting as differential signals. A transient absorbing circuit compares reproduction voltages of the differential signals outputted from the AC amplifying circuit and controls charge and discharge of the capacitors on the basis of comparison outputs so that both of the reproduction voltages coincide with an AC ground, thereby automatically absorbing a transient state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile