1994-09-06
1997-09-02
Auve, Glenn A.
395311, 395858, 395892, G06F 1300
Patent
active
056641230
ABSTRACT:
A micro control system includes a programmable microcontroller which is in bus communication with memory units and a operating power supply for providing operating power to said microcontroller. A communication module is part of the micro control system and is in communication with the data bus of the micro control system for receiving and transmitting data messages to an external device, and for encoding said transmitted data messages to conform to a serial communication protocol and decoding said received data messages. The microcontroller is programmed to generated a first control signal or a second control signal. An input-output interface is included as part of the micro control system and includes a number of switching units responsive to the first control signal of the microcontroller to place the respective switching units in a first mode of operation for providing communication between said communication module and a connector. The switching units also respond to said second control signal from the microcontroller to place said switching units in a second mode of operation for providing communication between said data bus of the micro control system and said connector to which connector the external device is attached.
REFERENCES:
patent: 4706189 (1987-11-01), Brockman
patent: 4794525 (1988-12-01), Pickert et al.
patent: 5214785 (1993-05-01), Fairweather
patent: 5239627 (1993-08-01), Beck et al.
patent: 5418911 (1995-05-01), Zilka et al.
Lee Young W.
Moh Sung-won
Muller Arno
Auve Glenn A.
Chaclas Angelo N.
Parks, Jr. Charles G.
Pitney Bowes Inc.
Scolnick Melvin J.
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