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. 03, 2013
Filed:
May. 06, 2011
Robert R. Rotzoll, Cascade, CO (US);
Roger Landowski, Erie, CO (US);
Douglas J Gorny, Boulder, CO (US);
Robert R. Rotzoll, Cascade, CO (US);
Roger Landowski, Erie, CO (US);
Douglas J Gorny, Boulder, CO (US);
RealD Inc., Beverly Hills, CA (US);
Abstract
Shuttering eyewear used to view 3D imagery and/or dual-view images may utilize an IR receiver filter with moderate to wide bandwidth to pass data sidebands of an on-off keying signal while strongly rejecting nearby interference sources. Filtering of the signal may be achieved via a circuit for passing data sidebands of infrared signals. The circuit may include a band pass filter with a low value of Q operable to filter out a first type of interference signal from a signal, a plurality of mixers operable to receive the signal from the band pass filter, wherein the plurality of mixers down converts the signal to baseband signals, and a plurality of low pass filters operable to receive the baseband signals from the plurality of mixers, wherein the plurality of low pass filters rejects a second type of interference.