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:
Oct. 15, 2019
Filed:
Nov. 15, 2017
Applicant:
Nxp Usa, Inc., Austin, TX (US);
Inventor:
Mahesh Chandra, Ghaziabad, IN;
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 1/20 (2006.01); H04N 9/64 (2006.01); G06F 5/01 (2006.01); G06F 7/523 (2006.01); G06F 7/535 (2006.01); G06F 7/50 (2006.01);
U.S. Cl.
CPC ...
H04N 9/64 (2013.01); G06F 5/01 (2013.01); G06F 7/50 (2013.01); G06F 7/523 (2013.01); G06F 7/535 (2013.01); G06T 1/20 (2013.01); G06T 2200/28 (2013.01);
Abstract
A reciprocal approximation circuit has a first iteration circuit for generating an approximate reciprocal value of an operand. The operation of the first iteration circuit is controlled by two bits of the operand, which indicate a range in which the operand lies. The first iteration circuit uses hardware friendly initial values based on the two bits for generating the approximate reciprocal value. The reciprocal approximation circuit does not require any additional circuit for selecting an initial value for the first iteration circuit.