CATV addressable converter with multi-purpose, bi-directional serial digital data port
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United States of America Patent
Stats
-
Jun 30, 1987
Grant Date -
N/A
app pub date -
Apr 16, 1985
filing date -
Apr 16, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A CATV addressable converter is provided with a multi-purpose bi-directional data port for transmitting and/or receiving serial digital data. A micro-computer provided within the converter is programmed to make the converter responsive to RF commands transmitted over a television distribution system by an addressing computer or to the digital command signals received from an external device through the data port. The micro-computer coordinates the exchange of data between the converter and the external device to implement several converter functions. The data port provides a means by which an external device can read or alter data stored in the converter memory. This facilitates testing during and after manufacture as well as converter installation and address assignment procedures. The converter port can also be used to establish a communication link between two or more converters. The resulting hard-wire link between the converters prevents a form of piracy prevalent in the CATV industry.
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