Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1984-06-27
1985-07-16
Buczinski, S. C.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 86, 358114, 358117, 358122, H04N 716, H04K 104
Patent
active
045300089
ABSTRACT:
Apparatus and method for reducing the cost and complexity of equipment placed on subscribers' premises in a subscription communications system, such as a cable television system, while at the same time providing security against unauthorized system access includes a microprocessor controlled frequency converter in proximity to the subscriber's premises to convert information transmission signals to subscriber-receivable frequencies; a channel selection unit at the subscriber's premises for producing a command signal to initiate the transmission of information to the subscriber; and a verification circuit coupled to receive the command signals, to verify the same and electronically to instruct the microprocessor. The microprocessor may be provided with plural, plug-in converter modules for feeding signals to several subscribers and may be made responsive to subscriber generated auxiliary function signals from alarm detector units, utility meter reading devices, and the like.
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Broadband Technologies, Inc.
Buczinski S. C.
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