Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1984-05-31
1987-06-16
Buczinski, Stephen C.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 86, 364200, 370 15, 371 34, 455 5, 380 2, 380 10, 324 58B, H04N 7167, H04J 116, H04L 514
Patent
active
046739769
ABSTRACT:
In a cable television system in which the individual subscriber's converter/tuner is located outside the subscriber's premises in an external control unit ("ECU") and controlled remotely via a subscriber processing unit ("SPU") connected to the ECU by a drop cable, data transmitted from the SPU to the ECU (e.g., channel selection data) is verified by transmitting similar echo back data from the ECU to the SPU. The SPU compares the original and echo back data to assure that the ECU correctly received the original data.
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American Television & Communications Corporation
Buczinski Stephen C.
Ingerman Jeffrey H.
Rogers Laurence S.
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