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:
Dec. 23, 2025
Filed:
Nov. 16, 2023
Nuvoton Technology Corporation, Hsinchu Science Park, TW;
NUVOTON TECHNOLOGY CORPORATION, Hsinchu Science Park, TW;
Abstract
A control chip coupled to a central processing unit (CPU) and including a selection circuit, a buffer circuit, a calculation circuit, and a motion judgment circuit is provided. The selection circuit selects some of the first image macro-blocks of a first image frame and some of the second image macro-blocks of a second image frame. The buffer circuit stores the selected first and second image macro-blocks. The calculation circuit accesses the buffer circuit and calculates the differences between the selected first and second image macro-blocks to generate a calculated result. The motion judgment circuit determines whether the first and second image frames are the same according to the calculated result. In response to the second image frame not being the same as the first image frame, the motion judgment circuit wakes up the CPU so that the CPU enters a normal mode from a low-power mode.