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:
Sep. 11, 1984
Filed:
Jun. 30, 1983
Applicant:
Inventor:
Herbert Elmis, Denzlingen, DE;
Assignee:
ITT Industries, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 / ; 324 / ; 307269 ; 328133 ;
Abstract
A circuit for digitally evaluating the magnitude of the phase error between a reference and a locally generated train (sequence) of pulses. The reference train (sequence) may be, for example, the received horizontal sync pulse in a television receiver and the locally generated synchronizable horizontal trigger of the receiver. The reference pulse train (sequence) contains statistical noise and noise pulses and by multiple phase error sampling (digital) and averaging a much more accurate phase error measurement is obtained. Circuits for directly synchronizing the local trigger generator from the measured phase error are also included.