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. 27, 2002
Filed:
Aug. 10, 1999
Vam Chang, Taipei, TW;
Kuang-Shin Lin, Taipei, TW;
Kingboard Ma, Tientsin, CN;
Xian-Hong Shen, Tientsin, CN;
Inventec Corporation, Taipei, TW;
Abstract
A PC interval timer test method used in a personal computer to test the abnormality of the interval timer of a PC (personal computer) by: calculating the difference between the periodic interrupt frequency of the PC's CMOS Real Time Clock (R.T.C.) and the interval timer interrupt frequency within the same time period, and then judging the result by comparing the value of the difference thus obtained with the set maximum allowable value of error of the CMOS R.T.C.'s periodic interrupt frequency. The maximum frequency of the CMOS R.T.C. can be as high as 8192 Hz, so that the test error can be as minor as below 1/8192.