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:
Jun. 27, 2017
Filed:
Jan. 18, 2013
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Nozomu Nagata, Kanagawa-Ken, JP;
Shigefumi Odaohhara, Kanagawa-Ken, JP;
LENOVO (SINGAPORE) PTE LTD, Singapore, SG;
Abstract
A method for controlling the clock frequency of a processor while suppressing performance degradation is disclosed. The processor receives power from a battery to operate at a high clock frequency HFM(f) or a low clock frequency LFM(f). An allowable current Im is set for the discharge current of the battery. The time during which the processor operates at the HFM(f) and the time during which the processor operates at the LFM(f) are controlled by PWM. As the feedback current Ifb increases, the time during which the processor operates at the LFM(f) become longer than the time during which the processor operates at the HFM(f).