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:
Feb. 26, 2013
Filed:
Sep. 23, 2009
Kennan Herbert Laudel, San Jose, CA (US);
Nicholas Cowley, Wiltshire, GB;
Isaac Ali, Bristol, GB;
Intel Corporation, Santa Clara, CA (US);
Abstract
Methods and systems to compensate IQ imbalances in a tuner system, including relatively wideband ZIF tuner systems and tuner systems having substantially linear frequency dependent phase imbalance, where a one-tap compensation element may be utilized to compensate frequency dependent phase imbalance. A two tone probe may be applied in controlled loop-back modes, and resultant baseband components may be used to determine a straight line from which to determine compensation. The probe may include a Multi-Media over Coax Alliance (MoCA) Type 2 probe. Compensation parameters may be determined as fixed or non-adaptive compensation parameters in a digital domain and may be applied at baseband. One or more compensation values may be determined in a fixed point circuit.