Physical-layer signaling techniques for maintaining dc line balance
AssigneeAnalog Devices, Inc.
InventorsBryson Dean Barney, Clemens Maria Hammerschmied
Life of this patent
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Abstract
In some embodiments, a communication device configured to receive power and communicate data signals via a differential pair of conductors is provided. The communication device comprises circuitry configured to generate or receive a common mode voltage via the differential pair; and at least one of: circuitry configured to, in response to detecting an edge of an incoming digital signal via an input conductor, transmit an outgoing pair of pulses based on the detected edge via the differential pair; or circuitry configured to detect an incoming pair of pulses via the differential pair and adjust a signal transmitted via an output conductor indicating a logical value based on the incoming pair of pulses.
Claims20
A method of receiving power and transmitting data signals via a differential pair of conductors, the method comprising:
- generating or receiving a common mode voltage via the differential pair;
- and
- in response to detecting an edge of an incoming digital signal via an input conductor, transmitting a pair of pulses based on the edge via the differential pair.
A method of receiving power and data signals over a differential pair of conductors, the method comprising:
- generating or receiving a common mode voltage via the differential pair;
- transmitting a signal indicating a logical value via an output conductor;
- and
- detecting a pair of pulses via the differential pair;
- and
- adjusting the signal indicating the logical value based on the pair of pulses.
A communication device configured to receive power and communicate data signals via a differential pair of conductors, the communication device comprising:
- circuitry configured to generate or receive a common mode voltage via the differential pair;
- and
- at least one of:
- circuitry configured to, in response to detecting an edge of an incoming digital signal via an input conductor, transmit an outgoing pair of pulses based on the detected edge via the differential pair;
- or
- circuitry configured to detect an incoming pair of pulses via the differential pair and adjust a signal transmitted via an output conductor indicating a logical value based on the incoming pair of pulses.
Dependencies are inferred from the claim text.