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:
Nov. 10, 1987
Filed:
Feb. 04, 1986
Yoshiro Yoda, Tama, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
In a system in which a signal is read out of a medium for recording binary-coded information data, an information signal having no dc component is detected, and the information signal is compared with a slice signal to detect a series of binary-coded signals. The system includes a slice signal generating circuit for detecting an envelope of the information signal and generating a slice signal on the basis of the detected envelope signal such that the voltage level of the slice signal corresponds to a dc voltage level of the information signal when the information signal is being read and the voltage level thereof is higher than the noise level when the information signal is not being read.