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.

Date of Patent:
Dec. 03, 2024

Filed:

Sep. 16, 2022
Applicant:

Realtek Semiconductor Corp., HsinChu, TW;

Inventor:

Yu-Cheng Lo, HsinChu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3185 (2006.01);
U.S. Cl.
CPC ...
G01R 31/318541 (2013.01);
Abstract

A system, comprising: a plurality of first latches; a compressor circuit, coupled to the first latches, configured to compress an first signal having X bits from the first latches to a second signal having Y bits, wherein X and Y are positive integers and X is larger than Y; and at least one second latch, coupled to the compressor circuit, configured to receive the second signal to generate a scan output, wherein each of the first latches and the second latch forms a D flip flop. The system outputs the first signal but none of the scan output in a normal mode, and outputs the scan output but none of the first signal in a test mode.


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