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Title: US5421589: Method and apparatus for displaying an alpha channel virtual image
[ Derwent Title ]

Country: US United States of America

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23 pages

Inventor: Monroe, Marshall M.; Glendale, CA

Assignee: The Walt Disney Company, Burbank, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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Published / Filed: 1995-06-06 / 1993-09-07

Application Number: US1993000118385

IPC Code: Advanced: A63F 13/08; H04N 13/00;
IPC-7: A63F 9/22;

ECLA Code: A63F13/08; H04N13/04H; T04N13/02M; T04N13/04H; T04N13/04P; T04N13/04V5;

U.S. Class: Current: 345/009; 348/E13.022; 348/E13.042; 348/E13.057; 348/E13.058; 353/037; 359/629; 463/034;
Original: 273/437; 345/009; 353/037; 359/629;

Field of Search: 273/433,434,437,DIG. 28,310,312,313,316,85 G 345/001,4,7,8,9,37,38,87 353/028,30,37 359/471,472,477,629,630

Priority Number:
1993-09-07  US1993000118385
1993-05-14  US1993000062304

Abstract:     The present invention is directed to a method and apparatus for displaying a virtual image and for providing control over the "alpha channel" or transparency of the virtual image. The present invention uses a beam splitter to provide a virtual image to a viewer. Behind the beam splitter is a liquid crystal region for controlling the transparency of the virtual image. Behind the liquid crystal region is a background image. Control of the liquid crystal region is coordinated with control of the virtual image so as to make transparency and opacity of the liquid crystal region follow the portions of the virtual image that are intended to be transparent and opaque, respectively.

Attorney, Agent or Firm: Hecker & Harriman ;

Primary / Asst. Examiners: Harrison, Jessica J.;

Maintenance Status: E3 Expired  Check current status

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Related Applications:
Application Number Filed Patent Pub. Date  Title
US1993000062304 1993-05-14    1994-11-29  Method and apparatus for a virtual video game

Parent Case:     The present application is a continuation in part of U.S. patent application Ser. No. 08/062,304 filed May 14, 1993, now U.S. Pat. No. 5,368,309.

Family: Show 2 known family members

First Claim:
Show all 25 claims
I claim:     1. A display comprising:
  • a first image;
  • an image reflecting means for reflecting said first image to produce a reflected first image viewable along a line of sight;
  • a liquid crystal region comprising at least one liquid crystal element, said liquid crystal region for controlling a transparency of said reflected first image, said liquid crystal region interposed with said image reflecting means and a background image;
  • said background image aligned along said line of sight.

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Description: Show description

Forward References: Show 35 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (35)   |   Backward references (15)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 4pp US4084194  1978-04 Hector  Atari, Inc. Game cabinet
Get PDF - 7pp US4189145  1980-02 Stubben et al.  Atari, Inc. Apparatus for continuous rotation simulation of video images
Get PDF - 11pp US4306768  1981-12 Egging  Taito America Corporation Creation of multiplanular images
Get PDF - 16pp US4378955  1983-04 Bleha, Jr. et al.  Hughes Aircraft Company Method of and apparatus for a multimode image display with a liquid crystal light valve
Get PDF - 17pp US4403216  1983-09 Yokoi  Nintendo Co., Ltd. Display
Get PDF - 17pp US4568080  1986-02 Yokoi  Nintendo Co., Ltd. Display apparatus
Get PDF - 15pp US4589659  1986-05 Yokoi et al.  Nintendo Co., Ltd. Foldable liquid crystal display unit
Get PDF - 15pp US4799765  1989-01 Ferrer  Hughes Aircraft Company Integrated head-up and panel display unit
Get PDF - 6pp US4879603  1989-11 Berman  Kaiser Aerospace & Electronics Corp. Multiple image, single display system and method
Get PDF - 10pp US4900133  1990-02 Berman  Kaiser Electronics Heads-up display combiner utilizing a cholesteric liquid crystal element
Get PDF - 11pp US4971312  1990-11 Weinreich   Illusion apparatus
Get PDF - 8pp US4973951  1990-11 Shigeta et al.  Stanley Electric Co., Ltd. Double-sided display apparatus
Get PDF - 12pp US4987410  1991-01 Berman et al.  Kaiser Aerospace & Electronics Corporation Multiple image forming apparatus
Get PDF - 19pp US5190286  1993-03 Watanabe et al.  Namco, Ltd. Image synthesizing system and shooting game machine using the same
Get PDF - 8pp US5221083  1993-06 Dote  Sega Enterprises, Ltd. Medal game machine
Foreign References: None

Other Abstract Info: DERABS G1995-013855 DERABS G1995-214400 DERABS G1995-214400

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