Television – Special applications – Observation of or from a specific location
Patent
1996-06-13
1998-04-28
Au, Amelia
Television
Special applications
Observation of or from a specific location
348159, H04N 718
Patent
active
057451672
ABSTRACT:
A video monitor system comprises a transmitting medium, video cameras, monitors, VTR, monitor terminals, a control portion and a transmitting medium having channels of video signals and a data channel coupling these units. The video monitor receives a request of a desired camera and a desired monitor and supplies the data indicative the request. The control portion receives the data indicative of the request and determines one of channels and operates the desired camera and desired monitor thorough the determined one of channels to display a video signal on the desired monitor. The VTR records one of video signals from a desired video camera through determined one of channels. A priority is judged to control one video camera which are requested to be operated by two monitor control terminals at the same time. A diagnostic function for detecting a defect and a location in the transmitting medium and a sequential operation function are also provided. The control portion operates in two modes which can be alternately executed by storing conditional data of two modes. An integrated video monitor system having two video monitor systems mentioned above and a center monitor for displaying a video signal from either of one of video camera of either of the monitor systems is also disclosed.
REFERENCES:
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patent: 4673974 (1987-06-01), Ito et al.
patent: 4814869 (1989-03-01), Oliver, Jr.
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patent: 5335014 (1994-08-01), Elberbaum
Inoue Akino
Kageyu Satoshi
Kato Hitoshi
Sohma Masaki
Au Amelia
Matsushita Electric - Industrial Co., Ltd.
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