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:
Jan. 17, 2012
Filed:
Apr. 28, 2010
Applicant:
Steven D. Roach, Colorado Springs, CO (US);
Inventor:
Steven D. Roach, Colorado Springs, CO (US);
Assignee:
Teradyne, Inc., North Reading, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01); H03G 3/00 (2006.01); H03F 3/68 (2006.01);
U.S. Cl.
CPC ...
Abstract
An attenuator circuit includes a high-frequency circuit path to produce an attenuated first signal; a low-frequency circuit path to produce an attenuated second signal, where the attenuated first signal has a higher frequency than the attenuated second signal; and a transistor that includes a control input. The control input is configured to receive the attenuated second signal to bias the transistor for passage of the attenuated first signal and the attenuated second signal.