H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/16
H04B 1/40 (2006.01)
Patent
CA 1232328
DIGITAL DATA TRANSCEIVER FOR POWER LINE COMMUNICATIONS SYSTEMS ABSTRACT OF THE DISCLOSURE Steering logic for interconnecting a transceiver with a baseband bus is disclosed. The transceiver is connected to a broadband bus and transmits or receives modulated carrier wave signals. The transceiver has a data in terminal and a data out terminal for inputting or outputting digital signals at baseband. The transceiver also has at least one control terminal and is responsive to a control signal or signals for enabling or disabling the transmitting and receiving functions of the transceiver. The steering logic includes a baseband bus terminal to which may be applied baseband digital transmit signals and to which the steering logic may apply digital receive signals. There is a direct connection between the data in terminal of the transceiver and the baseband bus terminal, while an open collector buffer is connected between the data out terminal of the transceiver and the baseband bus terminal. Logic circuitry including an OR gate has inputs connected to the baseband bus terminal and the data out terminal of the transceiver and an output connected to the control terminal of the transceiver. The logic circuitry is responsive to baseband digital transmit signals applied to the baseband bus terminal for generating a control signal or signals to enable the transmitting function and disable the receiving function of the transceiver.
475585
Anderson Thomas E.
Howell Edward K.
Company General Electric
Eckersley Raymond A.
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