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:
Feb. 04, 1986
Filed:
Jun. 22, 1983
Applicant:
Inventor:
Thomas J Perry, Phoenix, AZ (US);
Assignee:
GTE Automatic Electric Incorporated, Northlake, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375119 ; 375 82 ; 370100 ;
Abstract
In a PCM telecommunications switching system, an arrangement for deriving a clock signal from incoming PCM data of a digital span is shown. This derived clock signal is synchronized and continuously locked to the incoming PCM data of the digital span. The present digital phase locking arrangement cyclically adjusts the derive clock signal so that on the average synchronism is maintained.