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:
Apr. 05, 2005
Filed:
Jan. 08, 2002
James Henry Bandy, Huntington Beach, CA (US);
Hongliang Zhao, Irvine, CA (US);
James Henry Bandy, Huntington Beach, CA (US);
Hongliang Zhao, Irvine, CA (US);
3DSP Corporation, Irvine, CA (US);
Abstract
The present invention relates to a barrel shifter for manipulating bits within computer words. The barrel shifter includes multiple multiplexer stages for rotating single and multiple words. In several embodiments, it provides a half-word alignment in a 2-bit barrel shifter, rotates a single 32-bit data word or two 16-bit data words, rotates a 2-bit data word or two 2-bit data half-words, a method of operating a 2-bit barrel shifter to rotate two 2-bit data words, multiplexer stages for rotating the bits to the left or right based on control signals, such that the stages do not require 2:1 multiplexers between the first and second stages.