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US 10,762,020 B2Granted
Bus system and communication device
AssigneeSony Corporation
InventorHideyuki Matsumoto
Life of this patent
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Abstract
A bus system according to the present disclosure includes: three or more devices that include one or a plurality of imaging devices, and transmit and receive a data signal in a time-division manner; and a bus to which the three or more devices are coupled and through which the data signal is transmitted. A first device of the three or more devices includes: an equalizer having a first operation mode in which a received signal is equalized with use of a coefficient set including one or a plurality of equalization coefficients, a storage unit that stores a plurality of the coefficient sets, and a communication controller that selects one of the plurality of the coefficient sets stored in the storage unit and causes the equalizer to operate in the first operation mode with use of the selected coefficient set.
Claims16
A bus system, comprising:
- three or more devices that include one or a plurality of imaging devices, and transmit and receive a data signal in a time-division manner;
- and
- a bus to which the three or more devices are coupled and through which the data signal is transmitted, wherein
- a first device of the three or more devices includes:
- an equalizer having a first operation mode in which a received signal is equalized with use of a coefficient set including one or a plurality of equalization coefficients,
- a storage unit that stores a plurality of the coefficient sets, and
- a communication controller that selects one of the plurality of the coefficient sets stored in the storage unit and causes the equalizer to operate in the first operation mode with use of the selected coefficient set,
- the equalizer has a second operation mode in which the received signal is equalized while adjusting the one or plurality of equalization coefficients,
- a second device of the three or more devices has a plurality of transmission modes including a first transmission mode and a second transmission mode,
- the communication controller instructs the second device to transmit a first pattern signal having a first data pattern in the first transmission mode, and causes the equalizer to operate in the second operation mode and stores, in the storage unit, a first coefficient set including the one or plurality of adjusted equalization coefficients,
- the communication controller instructs the second device to transmit the data signal in the first transmission mode, and selects the first coefficient set from the plurality of the coefficient sets stored in the storage unit and causes the equalizer to operate in the first operation mode with use of the first coefficient set, and
- the communication controller instructs the second device to transmit a second pattern signal having a second data pattern in the second transmission mode, and causes the equalizer to operate in the second operation mode and stores, in the storage unit, a second coefficient set including the one or plurality of adjusted equalization coefficients.
9 more elements
A communication device, comprising:
- an equalizer having a first operation mode in which a received signal is equalized with use of a coefficient set including one or a plurality of equalization coefficients;
- a storage unit that stores a plurality of the coefficient sets;
- and
- a communication controller that selects one of the plurality of the coefficient sets stored in the storage unit and causes the equalizer to operate in the first operation mode with use of the selected coefficient set, wherein
- the equalizer has a second operation mode in which the received signal is equalized while adjusting the one or plurality of equalization coefficients,
- a communication partner has a plurality of transmission modes including a first transmission mode and a second transmission mode,
- the communication controller instructs the communication partner to transmit a first pattern signal having a predetermined first data pattern in the first transmission mode, and causes the equalizer to operate in the second operation mode and stores, in the storage unit, a first coefficient set including the one or plurality of adjusted equalization coefficients,
- the communication controller instructs the communication partner to transmit a data signal in the first transmission mode, and selects the first coefficient set from the plurality of the coefficient sets stored in the storage unit and causes the equalizer to operate in the first operation mode with use of the first coefficient set, and
- the communication controller instructs the second device to transmit a second pattern signal having a second data pattern in the second transmission mode, and causes the equalizer to operate in the second operation mode and stores, in the storage unit, a second coefficient set including the one or plurality of adjusted equalization coefficients.
6 more elements
Dependencies are inferred from the claim text.