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:
Jul. 27, 2021
Filed:
Dec. 01, 2019
Realtek Semiconductor Corp., HsinChu, TW;
Tzung-Jin Wu, Taipei, TW;
Jeong-Fa Sheu, Taoyuan, TW;
Po-Lin Chen, Taoyuan, TW;
Yin-Ping Chern, Chiayi County, TW;
Ying-Yen Chen, Hsinchu, TW;
Realtek Semiconductor Corp., HsinChu, TW;
Abstract
A circuit having multiple scan modes is disclosed. The circuit includes a first circuit block and a second circuit block. The first circuit block corresponds to a first scan mode of the multiple scan modes, and the first circuit block includes at least one first scan chain for receiving a test signal from an external automatic test equipment. The second circuit block corresponds to a second scan mode of the multiple scan modes, and the second circuit block includes at least one second scan chain for receiving another test signal from the external automatic test equipment. The second scan chain includes at least one specific flip-flop positioned in the first circuit block, and the specific flip-flop is configured to drive the second circuit block.