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:
Sep. 30, 2008
Filed:
Dec. 18, 2002
Kieran Gerard Larkin, Putney, AU;
Peter Alleine Fletcher, Rozelle, AU;
Kieran Gerard Larkin, Putney, AU;
Peter Alleine Fletcher, Rozelle, AU;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method () of enhanced peak detection in a correlation signal (g(x)) is disclosed. The method () comprises identifying () in the correlation signal (g(x)) positions where the modulus value of the correlation signal is above a first predetermined value. Each of the identified positions is then processed by forming () a sub-signal from the correlation signal by isolating a region of samples, the region comprising substantially equal numbers of samples on opposite sides of the identified position. The sub-signal is then up-sampled () to a higher resolution using Fourier interpolation. The up-sampled sub-signal is searched () for a peak value, and when the peak value is greater than a second predetermined value, parameters associated with the peak value is stored ().