Closed circuit television apparatus for supervisory system
DCFirst Claim
1. A closed circuit television apparatus comprising:
- a plurality of transmitting means for generating video signals;
a receiving means for receiving said video signals;
a switching means for selectively connecting said transmitting means to the receiving means;
each of said transmitting means including a television camera to which a specific code is allotted, a circuit for generating code signals corresponding to said specific code, and a circuit for generating composite signals wherein the code signals are injected into the video signals; and
said receiving means including a circuit for receiving said composite signals, for extracting said code signals from the received composite signals and for generating display signals identifying the television camera corresponding to the extracted code signals, and a receiver for displaying visually information corresponding to said display signals together with reproduced images or pictures corresponding to said video signals.
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Abstract
A closed circuit television camera for a supervisory system includes a number of transmitting devices which generate video signals and are located at each of a number of different places to be observed, a television receiver which receives the video signals, and a switching device which selects one of the transmitting devices and connects the same to the television receiver. Each transmitting device includes a television camera having a specific code, a circuit for generating code signals and a circuit for generating composite signals. The receiver has a circuit for receiving the composite signals which also extracts the code signals from the composite signals and generates display signals to identify the television camera corresponding to the extracted code signals. Visual information corresponding to the display signals is displayed on a monitor.
27 Citations
7 Claims
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1. A closed circuit television apparatus comprising:
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a plurality of transmitting means for generating video signals; a receiving means for receiving said video signals; a switching means for selectively connecting said transmitting means to the receiving means; each of said transmitting means including a television camera to which a specific code is allotted, a circuit for generating code signals corresponding to said specific code, and a circuit for generating composite signals wherein the code signals are injected into the video signals; and said receiving means including a circuit for receiving said composite signals, for extracting said code signals from the received composite signals and for generating display signals identifying the television camera corresponding to the extracted code signals, and a receiver for displaying visually information corresponding to said display signals together with reproduced images or pictures corresponding to said video signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification