Active replica transformer hybrid
First Claim
1. A communication circuit comprising:
- a near end transmitter,wherein the near end transmitter is configured to generate a transmission signal,wherein the near end transmitter comprises a first plurality of current sources, andwherein outputs of the first plurality of current sources are summed to generate the transmission signal;
an adjustable near end replication transmitter,wherein the adjustable near end replication transmitter comprises a second plurality of current sources,wherein outputs of the second plurality of current sources are summed to generate a replication signal in accordance with the transmission signal, andwherein the replication signal from the adjustable near end replication transmitter is subtracted from the transmission signal from the near end transmitter and a received signal from a communication channel to generate a subtraction signal; and
a near end receiver,wherein the near end receiver is configured to receive the subtraction signal.
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Accused Products
Abstract
A communication circuit comprises a near end transmitter, and adjustable near end replication transmitter and a near end receiver. The near end transmitter is configured to generate a transmission signal and comprises a first plurality of current sources. Outputs of the first plurality of current sources are summed to generate the transmission signal. The adjustable near end replication transmitter comprises a second plurality of current sources. Outputs of the second plurality of current sources are summed to generate a replication signal in accordance with the transmission signal. The replication signal from the adjustable near end replication transmitter is subtracted from the transmission signal from the near end transmitter and a received signal from a communication channel to generate a subtraction signal. The near end receiver is configured to receive the subtraction signal.
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Citations
22 Claims
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1. A communication circuit comprising:
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a near end transmitter, wherein the near end transmitter is configured to generate a transmission signal, wherein the near end transmitter comprises a first plurality of current sources, and wherein outputs of the first plurality of current sources are summed to generate the transmission signal; an adjustable near end replication transmitter, wherein the adjustable near end replication transmitter comprises a second plurality of current sources, wherein outputs of the second plurality of current sources are summed to generate a replication signal in accordance with the transmission signal, and wherein the replication signal from the adjustable near end replication transmitter is subtracted from the transmission signal from the near end transmitter and a received signal from a communication channel to generate a subtraction signal; and a near end receiver, wherein the near end receiver is configured to receive the subtraction signal. - View Dependent Claims (2, 3, 4, 5, 10)
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6. A communication circuit, comprising:
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near end transmitting means for generating a transmission signal, wherein the near end transmitting means comprises a first plurality of means for generating current, and wherein outputs of the first plurality of current generating means are summed to generate the transmission signal; adjustable near end replication transmitting means for generating a replication signal in accordance with the transmission signal, wherein the adjustable near end replication transmitting means comprises a second plurality of means for generating current, wherein outputs of the second plurality of current generating means are summed to generate the replication signal, and wherein the replication signal from the adjustable near end replication transmitting means is subtracted from the transmission signal from the near end transmitting means and a received signal from a communication channel to generate a subtraction signal; and a near end receiving means for receiving the subtraction signal. - View Dependent Claims (7, 8, 9)
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11. A method of communicating signals, comprising the steps of:
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a.) transmitting a transmission signal; b.) generating a first plurality of current signals; c.) summing the first plurality of current signals to generate an adjustable replication signal in accordance with the transmission signal; d.) subtracting the adjustable replication signal from a combination of the transmission signal and a received signal from a communication channel; and e.) receiving an output signal of step (d), wherein step (a) comprises the steps of; f.) generating a second plurality of current signals; and g.) summing the second plurality of current signals to generate the transmission signal. - View Dependent Claims (12)
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13. An Ethernet transceiver, comprising:
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a near end transmitter, wherein the near end transmitter is configured to generate a transmission signal, wherein the near end transmitter includes a first plurality of current sources, and wherein outputs of the first plurality of current sources are combined to generate the transmission signal; an adjustable near end replica transmitter, wherein the adjustable near end replica transmitter includes a second plurality of current sources, wherein outputs of the second plurality of current sources are combined to generate a replica signal in accordance with the transmission signal, and wherein the replica signal from the adjustable near end replica transmitter is subtracted from a combination of the transmission signal from the near end transmitter and a received signal from a communication channel to generate an output signal; and a near end receiver, wherein the near end receiver is configured to receive the output signal. - View Dependent Claims (14, 15, 16, 17)
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18. An Ethernet transceiver, comprising:
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near end transmitting means for generating a transmission signal, wherein the near end transmitting means includes a first plurality of means for generating current, and wherein outputs of the first plurality of current generating means are combined to generate the transmission signal, adjustable near end replica transmitting means for generating a replica signal in accordance with the transmission signal, wherein the adjustable near end replica transmitting means includes a second plurality of means for generating current, wherein outputs of the second plurality of current generating means are combined to generate the replica signal, and wherein the replica signal from the adjustable near end replica transmitting means is subtracted from a combination of the transmission signal from the near end transmitting means and a received signal from a communication channel to generate an output signal; and a near end receiving means for receiving the output signal. - View Dependent Claims (19, 20, 21, 22)
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Specification