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:
Aug. 28, 2007
Filed:
Jun. 21, 2004
Yung-huei Chen, Taipei, TW;
Jar-haur Wang, Taipei, TW;
Yung-Huei Chen, Taipei, TW;
Jar-Haur Wang, Taipei, TW;
Via Technologies, Inc., Taipei, TW;
Abstract
An inquiring apparatus and method thereof is provided for assisting the CPU to inquire the state of the peripheral device. When the CPU needs to perform an inquiring process to wait for a peripheral device to come to an expected state, an inquiring apparatus is activated, instead of the CPU, to perform an inquiring process. The CPU is placed in a power-saving state which stops outputting the clock to the CPU when the inquiring apparatus performs the inquiring process. The inquiring process includes outputting a read cycle to the peripheral device receiving a current state of the peripheral device in response to the read cycle; and comparing the current state with the expected state. If the current state and the expected state are the same, the clock is outputted to the CPU again.