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. 30, 2005
Filed:
Jan. 23, 2002
Preston Jett, Huntsville, AL (US);
Lawrence E. Larson, Del Mar, CA (US);
Bret A. Pollack, Redondo Beach, CA (US);
David A. Rowe, Torrance, CA (US);
Preston Jett, Huntsville, AL (US);
Lawrence E. Larson, Del Mar, CA (US);
Bret A. Pollack, Redondo Beach, CA (US);
David A. Rowe, Torrance, CA (US);
Alereon, Inc., Austin, TX (US);
Abstract
A baseband signal converter device for an impulse radio receiver combines multiple converter circuits and an RF amplifier in a single integrated circuit package. Each converter circuit includes an integrator circuit that integrates a portion of each RF pulse during a sampling period triggered by a timing pulse generator. The integrator capacitor is isolated by a pair of Schottky diodes connected to a pair of load resistors. A current equalizer circuit equalizes the current flowing through the load resistors when the integrator is not sampling. Current steering logic transfers load current between the diodes and a constant bias circuit depending on whether a sampling pulse is present.