Invention Grant
- Patent Title: Real-time dynamic tracking of bias
- Patent Title (中): 实时动态跟踪偏差
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Application No.: US13780600Application Date: 2013-02-28
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Publication No.: US08683850B2Publication Date: 2014-04-01
- Inventor: Hua Sheng , Matthew G. Liberty , Christopher D. Roller , Charles W. K. Gritton
- Applicant: Hillcrest Laboratories, Inc.
- Applicant Address: US MD Rockville
- Assignee: Hillcrest Laboratories, Inc.
- Current Assignee: Hillcrest Laboratories, Inc.
- Current Assignee Address: US MD Rockville
- Agency: Patent Portfolio Builders PLLC
- Main IPC: G01D3/028
- IPC: G01D3/028 ; G01R29/00 ; G06F3/0346 ; G06F19/00
Abstract:
A bias value associated with a sensor, e.g., a time-varying, non-zero value which is output from a sensor when it is motionless, is estimated using at least two, different bias estimating techniques. A resultant combined or selected bias estimate may then be used to compensate the biased output of the sensor in, e.g., a 3D pointing device.
Public/Granted literature
- US20130169539A1 Real-Time Dynamic Tracking of Bias Public/Granted day:2013-07-04
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