Title: Emergency civil defense alarm and communications systems

Abstract: In a cable television distribution system, an emergency pre-empt system is located at a transmission station separate from the distribution station. This pre-empt system contains circuitry for interrupting the normal distribution of cable television signals and for enabling an emergency operator to present desired audio and video information to the viewers of the receivers serviced by the distribution system irrespective of the channel to which a receiver may be tuned.

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Inventors: Meadows, Talmadge W. (Decatur, AL, US)

Application Number: 512968
Filing Date: 1974-10-07
Publication_date: 1976-08-17
Assignee: First National Bank of Decatur, Alabama (Decatur, AL)
Primary Class(es): 348/460 348/484, 725/33, 725/36
Other Classes:
US Patent Ref:

3130396	Apr, 1964	Hughes et al.	325/308.
3521168	Jul, 1970	Kaiser et al.	325/57.
3761914	Sep, 1973	Hardy et al.	178/DIG.
3860746	Jan, 1975	Takeuchi	178/DIG.
3876940	Apr, 1975	Wickord et al.	325/64.

Other Refs:
Primary Examiner: Griffin, Robert L.
Assistant Examiner: Ng, Jin F.
Attorney: Craig & Antonelli