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:
Aug. 18, 1992
Filed:
Dec. 14, 1989
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358231 ; 358206 ; 358235 ;
Abstract
A display apparatus having a screen, a light beam source for generating light beams, an optical modulator for modulating the light beams in accordance with image signals to be displayed, a scanning apparatus for generating scanning beams of the modulated light beams, a projection apparatus for projecting the scanning beams on the screen, a reference beam source for generating a reference beam to be supplied to the scanning apparatus, a circuit for deriving a scanning reference beam, a circuit for generating timing signals based on the derived scanning reference beams, and a circuit for controlling timings of the image signals to be supplied to the optical modulator.