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. 22, 1983
Filed:
Mar. 24, 1981
Yasuo Ito, Yokohama, JP;
Victor Company of Japan, Limited, Yokohama, JP;
Abstract
A data regenerative system adapted to receive data signals transmitted with the Non-Return-to-Zero mode comprises a comparator for comparing the voltage level of the received data with a variable threshold to generate a digital comparator output. D-type flip-flops are arranged to receive the comparator output to generate first and second pulses respectively in response to a data strobe clock pulse. The time difference between the first and second pulses is detected to generate an error voltage which is applied to the comparator as the variable threshold to keep the crossing points of the eye pattern of the received signal constantly aligned on the threshold level. A variable width monostable multivibrator is responsive to synchronization pulses to generate the data strobe clock pulses with a duration that is a function of the difference between each period of the first and second pulses and one-half period of a third pulse generated by a D-type flip-flop in response to the leading edge transition of the output of the monostable multivibrator in the presence of the first and second pulses. Output pulses are regenerated in response to the output of the monostable multivibrator in the presence of the comparator output.