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:
Nov. 19, 2013
Filed:
Aug. 16, 2011
Fred Tzeng, Laguna Niguel, CA (US);
Payam Heydari, Irvine, CA (US);
Fred Tzeng, Laguna Niguel, CA (US);
Payam Heydari, Irvine, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A method of adaptively and losslessly quantizing an analog signal to a digital signal in an analog-to-digital converter (ADC), is disclosed. According to one embodiment, the quantizing is based on one or more of an instantaneous amplitude of the analog signal, frequencies of the analog signal, and patterned contents of the analog signal, and the method comprises sampling the analog signal; quanitizing the analog signal by a quantizer core, wherein the quantizer core comprises a digital-to-analog converter (DAC), a comparator, and a voltage reference, wherein the quantization is one of efficient lossless and adaptive compression quantization, or a traditional quantization method; determining by an analog compression engine (ACE) whether the sampled analog signal is above or below a defined threshold, wherein the defined threshold includes one or more of an amplitude threshold, a frequency threshold, and a patterned adaptive threshold; adaptively manipulating the sampled signal mathematically through at least one of the DAC or voltage reference of the quantizer core; and outputting the digital signal.