Addressable Security (1980)
By Al Clark, Cybertech, Inc.
The leading edge of operational security technology is found in the military. The methods used 20 years ago included an electronic circuit coupled with the physical act of using a courier to alter the operational characteristic of the electronic equipment used.
Today we are addressing the issue of security in Cable Television in terms of controlling both the presence of video signal and clarity along with user environmental sampling and transmitting.
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