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. 13, 2018
Filed:
Jul. 12, 2017
Mediatek Inc., Hsin-Chu, TW;
Wen-Yi Lin, Tainan, TW;
Girishankar Gurumurthy, Bangalore, IN;
MEDIATEK INC., Hsin-Chu, TW;
Abstract
A flip-flop circuit is provided. The flip-flop circuit receives a test signal at a test-in terminal and a data signal at a data-in terminal and generates a scan-out signal. The flip-flop circuit includes a buffer and a scan flip-flop. The buffer has an input terminal coupled to the test-in terminal and an output terminal and further has a first power terminal and a second power terminal. The buffer operates to generate a buffering signal. The scan flip-flop receives the buffering signal and the data signal. The scan flip-flop is controlled by a test-enable signal to generate the scan-out signal according to the buffering signal or the data signal. The scan flip-flop further generates a test-enable reverse signal which is the reverse of the test-enable signal. The first power terminal of the buffer receives the test-enable signal or the test-enable reverse signal.