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. 27, 1983
Filed:
May. 18, 1982
Applicant:
Inventor:
Botaro Hirosaki, Tokyo, JP;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375 20 ; 375 24 ; 375 97 ; 375120 ; 307269 ; 331 / ;
Abstract
A timing signal is generated from a received pulse-amplitude-modulated (PAM) signal by generating a delayed difference signal, multiplying the delayed difference signal by .+-.1 in accordance with a decision signal, averaging the multiplication output to control a voltage-controlled oscillator, and using the oscillator output to clock a sampler/comparator which compares the input signal to a predetermined threshold at time instants determined by the VCO output to generate the decision signal.