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:
Dec. 22, 2009
Filed:
Nov. 30, 2007
Richard J. Mccauley, Sunnyvale, CA (US);
Dana R. Snow, Santa Clara, CA (US);
Richard J. McCauley, Sunnyvale, CA (US);
Dana R. Snow, Santa Clara, CA (US);
Canesta, Inc., Sunnyvale, CA (US);
Abstract
A method and system to enhance accuracy of measurement of distance Z in a TOF system dynamically provides tight control over the phase and/or timing relationship of clock pulses used in the TOF system. Enhanced frequency control is imposed over a high speed oscillator whose output(s) control a timing generator, whose outputs are coupled to circuitry associated with the detection array in the TOF system, and with the TOF clock timing circuitry. The timing generator is coupled to a delay locked loop (DLL) and/or phase lock loop (PLL), which loop(s) are feedback coupled to the waveform circuit that drives the source of electromagnetic energy emitted by the TOF system.