Fibre optic security system

Details Fibre optic security system Fibre optic security system

1978-08-28

1981-09-29

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340555, 340556, 350 9615, 356432, 455610, 250551, G08B 100, G02B 514

Patent

active

042926289

ABSTRACT:
In a security alarm system, connections between a local sensor unit or units and a control unit are established by flexible optical light fibre guides, a normal condition of a sensor being indicated by the maintenance of a light signal or signals passing through an associated guide from the sensor unit to the control unit where there is monitoring of at least one parameter of the signal which is dependent on the integrity of the guide.

REFERENCES:
patent: 3452205 (1969-06-01), Bogholtz
patent: 3605082 (1971-09-01), Matthews
patent: 3633035 (1972-01-01), Uchida
patent: 3717769 (1973-02-01), Hubbard et al.
patent: 3882887 (1975-05-01), Rekai
patent: 3924253 (1975-12-01), Marino
patent: 3938124 (1976-02-01), Way et al.
patent: 3981592 (1976-09-01), Williams
patent: 4000416 (1976-12-01), Goell
patent: 4012149 (1977-03-01), Bouillie et al.
patent: 4060803 (1977-11-01), Ashworth
patent: 4070091 (1978-01-01), Taylor et al.
patent: 4092059 (1978-05-01), Hawkes et al.

Affiliated with

Also associated with

Rating

Fibre optic security 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 Fibre optic security system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fibre optic security system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1236504