Projector signage and control system

Details Projector signage and control system Projector signage and control system

1994-07-11

1996-12-17

Dowling, William

Optics: image projectors

Miscellaneous

G03B 2100

Patent

active

055845541

ABSTRACT:
A projector signage and control system (10) for displaying a sequence of images onto a display screen (18). The projector signage and control system (10) is designed to monitor and control the operation of a projector (20). A projector control circuitry (14) is provided for enabling and disabling a projector (20) dependent upon levels of ambient light. In the event of a failure, a monitoring circuitry (16) seizes a telephone line (106), calls a predetermined number, and delivers a pre-recorded message such that appropriate actions may be taken. These events include the raising or lowering of the temperature within the projection system cabinet (26) to a temperature outside of a predetermined operating range, the sticking or other malfunction of the projector tray (24), the burning out of a bulb, a power outage, and the tampering of the projection system cabinet (26).

REFERENCES:
patent: 1798078 (1931-03-01), Geyling et al.
patent: 3198066 (1965-08-01), McGhee
patent: 3552845 (1971-01-01), Yates, Jr.
patent: 4150887 (1979-04-01), Huber
patent: 4432618 (1984-02-01), Parker et al.
patent: 4933690 (1990-06-01), Sangregory et al.
patent: 5136397 (1992-08-01), Miyashita
patent: 5140301 (1992-08-01), Watanabe
Kodak Ektapro P-Com Protocol--The projector's communication language Copyright by Kodak AG 1992.
Kodak Ektapro Projector-Features "Using the Instruction Manual".

Affiliated with

Also associated with

Rating

Projector signage and control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Projector signage and control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projector signage and control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1986253