Electronic light pointer for a projection monitor

Details Electronic light pointer for a projection monitor Electronic light pointer for a projection monitor

1987-10-22

1989-02-28

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

434325, 434335, 353 42, G09G 302

Patent

active

048089800

ABSTRACT:
A cursor positioning device for a computer system having a projection display monitor including a screen. A light pointer in the form of an elongated housing is positioned with its tip at a selected location on the screen. A light sensor detects the raster scan trace and transmits a timed electrical signal to an interface, which determines the coordinates of the selected location for use by a computer in controlling the position of the cursor on the projection screen.

REFERENCES:
patent: 3183773 (1963-04-01), Weinstein
patent: 3665615 (1972-05-01), Laplume
patent: 3885096 (1975-05-01), Inuiya
patent: 4097731 (1978-06-01), Krause et al.
patent: 4280135 (1981-07-01), Schlossberg
patent: 4468034 (1984-08-01), Duclos
patent: 4565999 (1986-01-01), King et al.
patent: 4591841 (1986-05-01), Gunderson et al.
patent: 4641440 (1987-02-01), Agranov
patent: 4682159 (1987-07-01), Davison
patent: 4698625 (1987-10-01), McCaskill et al.

Affiliated with

Also associated with

Rating

Electronic light pointer for a projection monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic light pointer for a projection monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic light pointer for a projection monitor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1371342