Television – Special applications – Observation of or from a specific location
Reexamination Certificate
1999-05-10
2001-09-04
Le, Vu (Department: 2613)
Television
Special applications
Observation of or from a specific location
C348S158000
Reexamination Certificate
active
06285394
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a video monitoring system, and more particularly to such a video monitoring system which comprises a transmitter unit that detect predetermined detecting zones, and a receiver unit which is operated by the user to control the operation of the transmitter unit at a distance.
Regular commercially available video telephones can only transmit audio/video signals, and provides only one single picture. These video telephones cannot be linked to a video camera for image output. When a video telephone is connected, it immediately transmits detected image to the opposite party without through a recognition process. Further, these video telephones do not provide burglar-alarm function, remote control function, or automatic dialing function. If a remote control function is required, additional circuit means must be installed.
SUMMARY OF THE INVENTION
It is one object of the present invention to provide a video monitoring system which uses a transmitter unit and a receiver unit to monitor predetermined detecting zones, enabling the user to control the operation of the transmitter unit in monitoring predetermined detecting zones through the receiver unit at a distance. It is another object of the present invention to provide a video monitoring system which provides an automatic dialing function. It is still another object of the present invention to provide a video monitoring system which allows the user to connect external monitors and speakers to the transmitter unit and the receiver unit. It is still another object of the present invention to provide a video monitoring system which enables the user to connect one or at least four video cameras to the transmitter unit and the receiver unit to simultaneously monitor different detecting zones. It is still another object of the present invention to provide a video monitoring system which has wired/cordless alarm devices and video cassette recorders respectively connected to the transmitter unit and the receiver unit. It is still another object of the present invention to provide a video monitoring system which enables the user to disconnect the transmitter unit from the receiver unit, and to use the transmitter unit separately in monitoring particular detecting zones. It is still another object of the present invention to provide a video monitoring system which enables the user to change the default values, and to set parameters including cordless alarm code, length of sound of alarm, length of arm/outdoors delay time, length of alarm/indoors delay time, length of picture switching time interval.
REFERENCES:
patent: 5144661 (1992-09-01), Shamosh et al.
patent: 5264828 (1993-11-01), Meiksin et al.
patent: 5319698 (1994-06-01), Glidewell et al.
patent: 5587701 (1996-12-01), Hess
patent: 6052052 (2000-04-01), Delmonaco
Bacon & Thomas PLLC
Le Vu
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