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:
Mar. 19, 2019
Filed:
Jul. 26, 2018
Texas Instruments Incorporated, Dallas, TX (US);
Abishek Manian, Santa Clara, CA (US);
Robin Gupta, Santa Clara, CA (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A loss of lock detection circuit includes detection circuitry and pulse accumulation circuitry. The detection circuitry includes a first flip-flop, a second flip-flop, and a third flip-flop. The first flip-flop is configured to synchronize a data stream to a first edge of a clock signal. The second flip-flop is configured to synchronize the data stream to a second edge of the clock signal. The third flip-flop is clocked by the data stream, and is configured to store a combined output of the first flip-flop and the second flip-flop at an edge of the data stream. The pulse accumulation circuitry is coupled to the detection circuitry. The pulse accumulation circuitry is configured to collect pulses generated by the third flip-flop.