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. 22, 2010
Filed:
Apr. 26, 2007
Yohei Hirakoso, Tokyo, JP;
Yohei Hirakoso, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
It is possible to provide a frequency component measuring device capable of narrowing the range of transmission frequency of a local oscillator, preventing degradation of the level measurement accuracy, and measuring the level of a modulation wave. The device includes: a local oscillator () capable of performing sweep in a predetermined frequency range; a mixer () for mixing a local oscillation signal outputted from the local oscillator () and a measured signal so as to subject the measured signal to a frequency conversion; a plurality of intermediate-frequency filters () for extracting and outputting components of different intermediate frequencies from a signal outputted from the mixer (); and an image removal processing section () for performing image removal according to the plurality of intermediate-frequency signals separately outputted from the intermediate-frequency filters () corresponding to frequency sweep operations performed by the local oscillator () more than once.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile