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. 14, 2010
Filed:
Dec. 19, 2007
Lan Huang, Shanghai, CN;
Shih-hao Liu, Shanghai, CN;
Lan Huang, Shanghai, CN;
Shih-Hao Liu, Shanghai, CN;
Inventec Corporation, Taipei, TW;
Abstract
A core voltage controlling apparatus suitable for a center processing unit (CPU) is provided. The apparatus includes a level shifting unit, a time-delay unit and a logic unit. An input terminal of the level shifting unit receives and shifts a first voltage signal, and an output terminal generates a second voltage signal, in which the first voltage signal indicates a power-on stable state, and the second voltage signal indicates a magnitude of the core voltage. The time-delay unit delays the second voltage signal to generate a third voltage signal. The logic unit is coupled to the time-delay unit for performing a logic operation on the third voltage and a fourth voltage signal transmitted by a power supply, and generating a fifth voltage signal for controlling a core voltage generator whether to provide the core voltage to the CPU or not, in which the fourth voltage signal indicates a power state.