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:
Nov. 16, 1999
Filed:
Dec. 04, 1997
Applicant:
Inventors:
Bogdan Staszewski, Garland, TX (US);
Sami Kiriaki, Garland, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
370514 ; 34022536 ;
Abstract
A sync detect circuit is comprised of two serial data registers (40) and (42), each for storing a single word. A plurality of current sources in current source banks (44) and (46) are operable to convert the bits in the stored sync word to a differential current domain. Depending upon the logic state, the currents are added on two lines (50) and (52). When the differential current falls below a predetermined limit, a frame sync signal is generated to latch the next and following words into a data latch (34). These are then transferred out to a system upon the generation of a system data clock.