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:
May. 27, 2003
Filed:
Jun. 30, 1999
Applicant:
Inventor:
Stephen Weir, Petaluma, CA (US);
Assignee:
Teltronics, Inc., Sarasota, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/00 ; H04J 3/06 ; H03D 3/24 ;
U.S. Cl.
CPC ...
H04M 3/00 ; H04J 3/06 ; H03D 3/24 ;
Abstract
A telephone switching system regenerates a clock signal transmitted from control equipment to peripheral equipment. The switching system receives a clock signal from the control equipment at the peripheral equipment. The clock signal is compared to a reference clock signal generated at the peripheral equipment to determine a phase error. The phase error is accumulated over a time period as determined by the peripheral equipment. The system adjusts the modulo of a ring counter as a function of the accumulated phase error. The output of the ring counter can then be used in timing functions within the peripheral equipment.