Title:
VIDEO PROJECTING DEVICE AND VIDEO SYSTEM
Document Type and Number:
Japanese Patent JP3674474
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress such an unnatural video display that the line of sight of a user is shifted when used in a communication conference system or the like, and to almost completely prevent a video failure such as generation of a flare.
SOLUTION: On a screen 13 arranged in a conference room provided with a communication conference system, the video of the partners' conference room is displayed by a video projecting device. In such a case, an aperture part 13a is arranged about in the central part of the screen 13, and a video camera 14 is installed on the rear side of this aperture part 13a. Then, a video photographed by this video camera 14 is transmitted to the partners' side, and the video projecting device to project the video on the screen 13 always projects a black picture on the aperture part 13a, the light projected by the video projecting device is thereby prevented from being made incident on the video camera 14.
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Inventors:
Honji Yukaku
Toru Hirai
Shimizu Ning
Fukuji Kawakami
Toru Hirai
Shimizu Ning
Fukuji Kawakami
Application Number:
JP2000237353A
Publication Date:
July 20, 2005
Filing Date:
August 04, 2000
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
G03B21/00; G09G5/00; G09G5/12; G09G5/377; G09G5/38; H04N7/15; (IPC1-7): G09G5/377; G03B21/00; G09G5/00; G09G5/12; G09G5/38; H04N7/15
Domestic Patent References:
| JP11243532A | ||||
| JP55154886A |
Attorney, Agent or Firm:
川▲崎▼ 研二