Electronically scanned beam display

Details Electronically scanned beam display Electronically scanned beam display

2006-06-13

2006-06-13

Awad, Amr A. (Department: 2677)

Computer graphics processing and selective visual display system

Image superposition by optical means

C008S094240, C235S462320, C358S296000

Reexamination Certificate

active

07061450

ABSTRACT:
A scanning control circuit generates a clock signal corresponding to an expected scan timing of a resonant scanner. In one approach, the control circuit uses a pair of direct digital synthesis (DDS) integrated circuits. A first DDS chip provides a system clock that is synchronized to the monitored period of the scanner. A second DDS chip generates a frequency chirped signal that has a frequency profile corresponding to a desired pixel clock timing. To control phase precisely, four complementary clock signals are weighted and mixed at light source drivers to produce relative phase shifts for different light sources.

REFERENCES:
patent: 5089908 (1992-02-01), Jodoin et al.
patent: 5191466 (1993-03-01), Gross et al.
patent: 5570222 (1996-10-01), Chovan
patent: 5654817 (1997-08-01), De Loor
patent: 5694237 (1997-12-01), Melville
patent: 5801390 (1998-09-01), Shiraishi
patent: 6245590 (2001-06-01), Wine et al.
patent: 6333724 (2001-12-01), Taira et al.
patent: 6344906 (2002-02-01), Gatto et al.
patent: 6448996 (2002-09-01), Suganuma
patent: 6510256 (2003-01-01), Asseh et al.
patent: 6522365 (2003-02-01), Levantovsky et al.
patent: 2002/0008196 (2002-01-01), Hatakeyama et al.
patent: WO 00/20912 (2000-04-01), None
PCT International Search Report for International Application No. PCT/US03/06503, completed on Oct. 24, 2003 (6 pages).

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