Title:
ビデオ・ディスプレイ装置
Document Type and Number:
Japanese Patent JP4172823
Kind Code:
B2
Abstract:
A display system includes a kinescope. A horizontal scan detector is coupled to a source of a horizontal scan current signal and detects a loss of horizontal scanning. In addition, a vertical scan detector is coupled to a source of a vertical scan current signal including a feedback path and detects a loss of vertical scanning. A vertical feedback detector is also coupled to the vertical scan current signal source, and detects a failure of the feedback path in the vertical scan current signal source. A controllable kinescope driver circuit, coupled to the kinescope, the horizontal scan detector, the vertical scan detector and the vertical feedback detector, blanks the kinescope if the horizontal scan detector detects a loss of horizontal scanning, the vertical scan detector detects a loss of vertical scanning or the vertical feedback detector detects a failure of the feedback path.
Inventors:
Ji-yeo, Ji-young Ballet
Application Number:
JP53783798A
Publication Date:
October 29, 2008
Filing Date:
February 24, 1998
Export Citation:
Assignee:
THOMSON CONSUMER ELECTRONICS,INCORPORATED
International Classes:
H04N3/20; G09G1/00; G09G1/04
Domestic Patent References:
| JP5176192A | ||||
| JP7143503A | ||||
| JP4314267A |
Attorney, Agent or Firm:
Riki Kikoshi
Takashi Ishii
Takashi Ishii