Document Type

Patent

Patent Number

US Patent 7,539,254

Patent agency

United States Patent and Trademark Office

Publication Date

5-26-2009

Assignee

University of Iowa Research Foundation (Iowa City, IA, US)

Application Number

11/127,529

Date Filed

2005-05-11

Total Pages

24 pages

Abstract

This invention provides a method and system for determining the number of bits to assign to a frequency range in a signal. The present invention is capable of bit allocation, with B total bits, among a plurality of N frequency ranges in time a time O(N log N), which is independent of the size of B. Embodiments of the present invention have many practical applications, including allocating bits among sub-channels in a multi-carrier communication system, and allocating bits among sub-bands in a signal representing digital multimedia, such as in JPEG or MPEG compressed files.

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URL

https://ir.uiowa.edu/patents/484