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. 22, 1987
Filed:
May. 13, 1985
Applicant:
Inventors:
Larry W Massingill, Raleigh, NC (US);
Derrick O Perkins, Raleigh, NC (US);
Assignee:
OnLine Computer Systems Inc., Germantown, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
328 72 ; 328 63 ; 328155 ; 307262 ; 307269 ;
Abstract
Apparatus for synchronizing an internally generated signal with an externally generated periodic or aperiodic signal to generate a periodic output signal phase synchronized with the externally generated signal comprising a local reference signal source, a sampling phase detector, a wide angle phase shifter, and a reference locked phase locked oscillator to achieve the phase alignment of the desired output signal to the input reference signal. The apparatus may contain an optional signal conditioner to condition the input reference signal for processing within the apparatus.