Active resistive summer for a transformer hybrid
First Claim
Patent Images
1. A system comprising:
- a transceiver configured to receive a composite signal and an encoded transmit signal, the composite signal being a composite of a transmit signal and a receive signal, wherein the transceiver includes a first current source and a first resistor, the first current source configured to generate the transmit signal across the first resistor based on the encoded transmit signal;
a replica transmitter configured to i) receive the encoded transmit signal and ii) generate a replica transmit signal based on the encoded transmit signal, wherein the replica transmitter includes a second current source and at least one second resistor, the second current source configured to generate the replica transmit signal across the at least one second resistor based on the encoded transmit signal; and
a transmit canceller configured to recover the receive signal at least in part by resistively summing the composite signal and the replica transmit signal.
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Accused Products
Abstract
A system includes a transceiver configured to receive a composite signal. The composite signal is a composite of a transmit signal and a receive signal. A replica transmitter is configured to generate a replica transmit signal based on the transmit signal. A transmit canceller is configured to recover the receive signal at least in part by resistively summing the composite signal and the replica transmit signal.
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Citations
17 Claims
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1. A system comprising:
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a transceiver configured to receive a composite signal and an encoded transmit signal, the composite signal being a composite of a transmit signal and a receive signal, wherein the transceiver includes a first current source and a first resistor, the first current source configured to generate the transmit signal across the first resistor based on the encoded transmit signal; a replica transmitter configured to i) receive the encoded transmit signal and ii) generate a replica transmit signal based on the encoded transmit signal, wherein the replica transmitter includes a second current source and at least one second resistor, the second current source configured to generate the replica transmit signal across the at least one second resistor based on the encoded transmit signal; and a transmit canceller configured to recover the receive signal at least in part by resistively summing the composite signal and the replica transmit signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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receiving a composite signal, the composite signal being a composite of a transmit signal and a receive signal; receiving an encoded transmit signal at a transmitter, the transmitter including a first current source and a first resistor; using the first current source, generating the transmit signal across the first resistor based on the encoded transmit signal; receiving the encoded transmit signal at a replica transmitter, the replica transmitter including a second current source and at least one second resistor; using the second current source, generating a replica transmit signal across the at least one second resistor based on the encoded transmit signal; and recovering the receive signal at least in part by resistively summing the composite signal and the replica transmit signal. - View Dependent Claims (15, 16, 17)
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Specification