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. 27, 2010
Filed:
Sep. 29, 2005
Dominic Go, San Jose, CA (US);
Daniel C. Murray, Morgan Hill, CA (US);
Dominic Go, San Jose, CA (US);
Daniel C. Murray, Morgan Hill, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
In one embodiment, a checksum generator comprises an N-bit accumulator and a plurality of N-bit 3:2 carry save adders. A first plurality of the plurality of N-bit 3:2 carry save adders are coupled to receive N-bit inputs extracted from an input to the checksum generator, and one of the first plurality has an N-bit input coupled to the output of the accumulator. A second plurality of the plurality of N-bit 3:2 carry save adders have inputs coupled to outputs of the first plurality, and a most significant bit of each carry output of the first plurality is inserted as a least significant bit of the carry output at the input to the second plurality.