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:
Dec. 09, 2008
Filed:
Aug. 23, 2007
Akira Nara, Kodaira, JP;
Akira Nara, Kodaira, JP;
Tektronix, Inc., Beaverton, OR (US);
Abstract
An up-converterfrequency-up-converts an analog signal Sm. A down-converterfrequency-down-converts analog signal Sm. A signal selection blockselects one of the frequency-up-converted signal Sfu and frequency-down-converted signal Sfd. The signal Se selected by the signal selection blockis provided to the primary winding of a transformer. A signal induced in the secondary winding of the transformeris provided to an A/D converterto produce a digital signal Dm. For example, if the analog signal Sm has DC or a low frequency close to DC, the signal Sfu is selected as the signal Se. If the analog signal Sm does no have DC nor a low frequency close to DC, the signal Sfd is selected as the signal Se.