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US 12,224,813 B2Granted
Transmission device, transmission method, and communication system
AssigneeSony Group Corporation
InventorHiroaki Hayashi
Life of this patent
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Abstract
A transmission device of the present disclosure includes: a driver unit that transmits a data signal with use of a first voltage state, a second voltage state, and a third voltage state interposed between the first voltage state and the second voltage state, and is configured to make a voltage in the third voltage state changeable; and a controller that changes the voltage in the third voltage state to cause the driver unit to perform emphasis.
Claims16
A transmission device comprising:
- a driver circuit configured to transmit a data signal using a first voltage state, a second voltage state, and a third voltage state interposed between the first voltage state and the second voltage state, a voltage of the third voltage state being changeable;
- and
- a controller configured to change the voltage in the third voltage state to cause the driver circuit to perform emphasis, wherein
- the controller determines whether to cause the driver circuit to perform emphasis in accordance with at least one change among the first voltage state, the second voltage state, and the third voltage state,
- the data signal indicates a sequence of symbols, and
- the controller changes the voltage in the third voltage state on a basis of a transition of the symbols in the sequence.
3 more elements
A transmission device comprising:
- a driver circuit configured to transmit a data signal using a first voltage state, a second voltage state, and a third voltage state interposed between the first voltage state and the second voltage state, a voltage of the third voltage state being changeable;
- and
- a controller configured to change the voltage in the third voltage state to cause the driver circuit to perform emphasis, wherein the driver circuit includes:
- a first driver circuitry that selectively sets a voltage state at a first output terminal to one of the first voltage state, the second voltage state, and the third voltage state,
- a second driver circuitry that selectively sets a voltage state at a second output terminal to one of the first voltage state, the second voltage state, and the third voltage state, and
- a third driver circuitry that selectively sets a voltage state at a third output terminal to one of the first voltage state, the second voltage state, and the third voltage state, and wherein
- the voltage states at the first output terminal, the second output terminal, and the third output terminal are different from one another,
- the controller changes a voltage in the first voltage state while controlling an output impedance of the first driver circuitry to be constant,
- the controller changes a voltage in the second voltage state while controlling an output impedance of the second driver circuitry to be constant, and
- the controller changes the voltage in the third voltage state while controlling an output impedance of the third driver circuitry to be constant.
7 more elements
Dependencies are inferred from the claim text.