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:
Jul. 06, 2010
Filed:
Sep. 15, 2006
Lawrence Rigby, Guildford, GB;
Lawrence Rigby, Guildford, GB;
Altera Corporation, San Jose, CA (US);
Abstract
A quantizer can be used to adjust the number of bits representing each sample value in a signal. Then, each received sample is allocated to one of a number of bins, with each bin corresponding to one of the possible quantizer output values. The quantizer can be used for providing a digital signal with a required number of bits, and the quantization interval can be adjusted. The quantization is performed in multiple stages. In a first stage, a received signal is compared with a first threshold value. In subsequent stages, the received signal is compared with respective threshold values, with the threshold value for each stage being calculated on the basis of the comparison result of the previous stage, and on the basis of an adjustable quantization interval. The quantized value is formed from the one-bit results from the comparison operations.