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:
Oct. 09, 2012
Filed:
Jun. 04, 2009
Amir Hosein Kamalizad, Irvine, CA (US);
Kaveh Razazian, Aliso Viejo, CA (US);
Maher Umari, Irvine, CA (US);
Amir Hosein Kamalizad, Irvine, CA (US);
Kaveh Razazian, Aliso Viejo, CA (US);
Maher Umari, Irvine, CA (US);
Maxim Integrated Products, Inc., San Jose, CA (US);
Abstract
An embodiment is a method and apparatus to estimate channel quality. An absolute processor computes absolute real and imaginary values of real and imaginary parts, respectively, of output of a demodulator. A phase count unit generates first and second phase counts representing deviations from zero phase noise using the absolute real and imaginary values. An amplitude count unit generates first and second amplitude counts representing attenuation of a received signal using the absolute real and imaginary values. An integrator integrates the first and second phase counts and first and second amplitude counts into a signal quality indicator that represents a measure of quality of channel with respect to noise and fading.