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. 31, 2012
Filed:
May. 07, 2009
Lalitkumar Nathawad, Fremont, CA (US);
Lalitkumar Nathawad, Fremont, CA (US);
Qualcomm Atheros, Inc., San Jose, CA (US);
Abstract
A digital regulated Local Oscillator (LO) buffer receives an unregulated LO signal from a local oscillator to create a regulated LO signal. Embodiments include not only the digital regulated LO buffer, but also a transceiver and/or a receiver including at least one instance of the digital LO buffer. They may be implemented as an integrated circuit. The digital regulated LO Buffer may include: A LO buffer receiving the unregulated LO signal and an amplitude control signal to create the regulated LO signal. A peak detector receives the regulated LO signal to create an analog peak signal that is presented to a digital output comparator along with a reference amplitude signal to create a digital threshold detect signal. An amplitude controller receives the digital threshold detect signal to create a digital control signal that drives a digitally controlled source to create the amplitude control signal.