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:
Jul. 04, 2000
Filed:
May. 27, 1998
William R Breithaupt, Dallas, TX (US);
Joseph K Masters, Wylie, TX (US);
Donald L Hicks, The Colony, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method of generating a color wheel index signal for use in a display system (10) that uses a spatial light modulator (14) and a color wheel (15). The index signal is compared to a reference signal associated with an input image signal so that the color wheel and the data being displayed can be synchronized (FIG. 2). The index signal is generated by placing a color-sensitive photodetector (14a) in close proximity to the spatial light modulator (14). Light filtered through the color wheel (15) illuminates both the spatial light modulator (14) and the photodetector (14a). The photodetector (14a) responds to color transitions in the filtered light, generating a pulse in response to each transition to the color to which it is sensitive.