Television – Special applications – Observation of or from a specific location
Patent
1994-03-23
1995-12-05
Chin, Tommy P.
Television
Special applications
Observation of or from a specific location
348169, H04N 718
Patent
active
054733685
ABSTRACT:
An automated interactive surveillance device provides passive infrared surveillance of a predetermined area to determine if an intruder enters the area. When the passive infrared detectors detect such an intruder, the device acts to aim a camera and ultrasonic rangefinder in the appropriate direction. The rangefinder determines the precise distance from the device to the intruder, whereupon the camera is accurately focused, the focal length adjusted for a relatively narrow field of view providing good resolution at the selected distance, and the angular elevation of the camera is adjusted appropriately. The passive infrared detectors may cooperate with a program to determine an approximate size for the detected intruder, based upon the amount of heat detected and the range determined by the ultrasonic rangefinder, to thus determine whether or not a human threat exists. The device may be elevated, with programming considering camera height, range to the intruder, and amount of heat detected to determine the approximate height of the intruder and aim the camera accordingly for a high resolution facial shot. One or more devices as needed may be connected to a remote monitoring site.
REFERENCES:
patent: 2700318 (1955-01-01), Snyder
patent: 2961545 (1960-11-01), Astheimer et al.
patent: 3703718 (1972-11-01), Berman
patent: 3760399 (1973-09-01), Schwarz
patent: 3924130 (1975-12-01), Cohen et al.
patent: 4081830 (1978-03-01), Mick et al.
patent: 4769545 (1988-09-01), Fraden
patent: 4772875 (1988-09-01), Maddox et al.
patent: 4823051 (1989-04-01), Young
patent: 4890093 (1989-12-01), Allison et al.
patent: 4896039 (1990-01-01), Fraden
patent: 4945367 (1990-07-01), Blackshear
patent: 5243418 (1993-09-01), Kuno et al.
Au A.
Chin Tommy P.
Litman Richard C.
LandOfFree
Interactive surveillance device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interactive surveillance device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interactive surveillance device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1376917