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:
Apr. 22, 1980
Filed:
Sep. 27, 1977
Applicant:
Inventors:
Jean-Michel Durand, Le Kremlin Bicetre, FR;
Etienne Penicaud, Chaville, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
328151 ; 307351 ; 328116 ;
Abstract
A signal peak detector which can be used for echo suppressors, has a memory in which is written a value which is variable as a function of the incident signal and represents the peak sought, an attenuator of the memorized value; four comparators; three of which compare the instantaneous value of the incident signal with, respectively the memorized value, the attenuated memorized value and a fixed threshold, and the fourth of which compares the attenuated memorized value with the fixed threshold; and a control unit which modifies the memorized value as a function of the result of those comparisons.