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:
Feb. 23, 2021
Filed:
Oct. 03, 2019
Applicant:
Pixart Imaging Inc., Hsin-Chu County, TW;
Inventors:
Zi-Hao Tan, Penang, MY;
Kevin Len-Li Lim, Penang, MY;
Assignee:
PIXART IMAGING INC., Hsin-Chu County, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/01 (2006.01); G06F 3/0346 (2013.01); G06F 3/038 (2013.01); G06K 9/20 (2006.01); H03H 17/02 (2006.01); G06K 9/60 (2006.01); G06F 1/04 (2006.01);
U.S. Cl.
CPC ...
G06K 9/2054 (2013.01); G06K 9/60 (2013.01); H03H 17/026 (2013.01); G06F 1/04 (2013.01);
Abstract
There is provided a 2-stage moving average filter for a navigation device including a delta regulator and an N-taps average circuit. The delta regulator is used as a first stage to receive motion delta at a varied frequency, and combine or split the received motion delta to output a regulated motion delta at a fixed frequency. The N-taps average circuit receives and averages N regulated motion delta and outputs the averaged motion delta at a fixed frequency.