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:
May. 06, 2003
Filed:
Jul. 06, 2001
Applicant:
Inventor:
Chia-Ming Tsai, Taipei, TW;
Assignee:
Phoenixtec Power Co., Ltd., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 2/302 ;
U.S. Cl.
CPC ...
G01R 2/302 ;
Abstract
A method of measuring frequency samples a waveform, calculates waveform voltages based on an initial time base and adjust the time base for a particular waveform to determine the actual frequency of the measured AC power. A microprocessor can be used to implement the method so a small quantity of electronic elements is required, and the manufacturing cost is low.
Tsai, Chia-Ming. (2003). Method of measuring frequency of ac power (U.S. Patent No. 6559630). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6559630
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile