Communication system, transmission device, and reception device

Patent metadata

Field	Value
Publication number	US-11711110-B2
Application number	US-201917284670-A
Country	US
Kind code	B2
Filing date	Oct 3, 2019
Priority date	Oct 18, 2018
Publication date	Jul 25, 2023
Grant date	Jul 25, 2023

Abstract

A communication system includes: a transmission device including a transmission data generator, a pattern generator, a transmitter, and a control signal receiver, the transmission data generator that is configured to generate transmission data, the pattern generator that is configured to generate an alternate pattern alternating at every lapse of a predetermined time, the transmitter that includes a first equalization circuit and is configured to transmit a transmission signal including the transmission data and the alternate pattern, the first equalization circuit that is configured to adjust equalization characteristics on the basis of first instruction information, and the control signal receiver that is configured to receive the first instruction information; and a reception device including a receiver, a first detector, and a control signal transmitter, the receiver that is configured to receive the transmission signal, the first detector that is configured to detect a frequency component corresponding to the predetermined time of the alternate pattern included in the transmission signal, and the control signal transmitter that is configured to generate the first instruction information on the basis of a result of detection by the first detector and is configured to transmit the first instruction information.

First claim

The invention claimed is:

1. A communication system comprising:
a transmission device including a transmission data generator, a pattern generator, a transmitter, and a control signal receiver, the transmission data generator being configured to generate transmission data, the pattern generator being configured to generate an alternate pattern alternating at every lapse of a predetermined time, the transmitter including a first equalization circuit and is configured to transmit a transmission signal including the transmission data and the alternate pattern, the first equalization circuit being configured to adjust equalization characteristics on a basis of first instruction information, and the control signal receiver being configured to receive the first instruction information; and
a reception device including a receiver, a first detector, and a control signal transmitter, the receiver being configured to receive the transmission signal, the first detector being configured to detect a frequency component corresponding to the predetermined time of the alternate pattern included in the transmission signal, and the control signal transmitter being configured to generate the first instruction information on a basis of a result of detection by the first detector and is configured to transmit the first instruction information.

2. The communication system according to claim 1 , wherein
the pattern generator is configured to change a time length of the predetermined time.

3. The communication system according to claim 2 , wherein
the alternate pattern included in the transmission signal includes a plurality of frequency components corresponding to the predetermined times different from each other,
the first detector is configured to detect the plurality of frequency components, and
the control signal transmitter is configured to generate the first instruction information on a basis of the plurality of frequency components detected by the first detector.

4. The communication system according to claim 3 , wherein
the control signal transmitter is configured to generate the first instruction information on a basis of some of the plurality of frequency components detected by the first detector.

5. The communication system according to claim 1 , wherein
the transmission device further includes a pulse generator that is configured to generate a single pulse,
the transmission signal includes the single pulse, in the transmission signal,
the single pulse is provided preceding the alternate pattern,
the reception device includes a second detector that is configured to detect a reflected pulse corresponding the single pulse included in the transmission signal, and
the control signal transmitter is configured to generate the first instruction information on a basis of a result of detection by the second detector.

6. The communication system according to claim 1 , wherein
the transmission device further includes a pulse generator that is configured to generate a single pulse,
the transmission signal includes the single pulse,
in the transmission signal, the single pulse is provided preceding the alternate pattern,
the reception device includes a second detector that is configured to detect a reflected pulse corresponding the single pulse included in the transmission signal, and
the receiver includes a second equalization circuit that is configured to adjust equalization characteristics on a basis of a result of detection by the second detector.

7. The communication system according to claim 1 , wherein
the transmission device further includes a pulse generator that is configured to generate a single pulse,
the transmission signal includes the single pulse,
in the transmission signal, the single pulse is provided preceding the alternate pattern,
the transmission device includes a third detector that is configured to detect a reflected pulse corresponding the single pulse included in the transmission signal, and
the first equalization circuit is configured to adjust equalization characteristics on a basis of a result of detection by the third detector.

8. The communication system according to claim 1 , wherein
the pattern generator is configured to further generate a training pattern,
the transmission signal includes the training pattern,
in the transmission signal, the training pattern is provided following the alternate pattern and preceding the transmission data,
the reception device includes a waveform detector that detects a waveform of a signal corresponding to the training pattern in the receiver,
the receiver includes a second equalization circuit of a decision feedback type and a third equalization circuit of a continuous-time type, the second equalization circuit being configured to adjust equalization characteristics, the third equalization circuit being provided in a stage preceding the second equalization circuit and is configured to adjust equalization characteristics, and
the first equalization circuit, the second equalization circuit, and the third equalization circuit are configured to adjust equalization characteristics on a basis of a result of detection by the waveform detector.

9. The communication system according to claim 1 , wherein
in the transmission signal, the transmission data is provided following the alternate pattern,
the reception device includes a waveform detector that detects a waveform of a signal based on the transmission data in the receiver,
the receiver includes a second equalization circuit of a decision feedback type and a third equalization circuit of a continuous-time type, the second equalization circuit is configured to adjust equalization characteristics, the third equalization circuit is provided in a stage preceding the second equalization circuit and is configured to adjust equalization characteristics, and
the first equalization circuit, the second equalization circuit, and the third equalization circuit are configured to adjust equalization characteristics on a basis of a result of detection by the waveform detector.

10. The communication system according to claim 1 , wherein
the communication system is configured to transmit and receive signals of a plurality of signal formats,
the pattern generator is configured to change a time length of the predetermined time,
the alternate pattern included in the transmission signal includes a plurality of frequency components corresponding to the predetermined times different from each other,
the first detector is configured to detect the plurality of frequency components,
the reception device is configured to determine a signal format to be used from the plurality of signal formats on a basis of the plurality of the frequency components detected by the first detector,
the control signal transmitter is configured to generate second instruction information on a basis of a result of the determination of the signal format, and is configured to transmit the second instruction information,
the control signal receiver is configured to receive the second instruction information,
the transmitter is configured to transmit a signal of the signal format to be used on a basis of the second instruction information, and
the receiver is configured to receive the signal of the signal format to be used on a basis of a result of the determination of the signal format.

11. The communication system according to claim 1 , wherein
the transmitter transmits the transmission signal to the receiver through a transmission path, and
the control signal transmitter transmits the first instruction information to the control signal receiver through the transmission path.

1

Assignees

• Sony Semiconductor Solutions Corp

Inventors

• Masuda Takashi
• Yasunaka Kentaro

Classifications

• H04B3/10 Primary

  by pilot signal · CPC title

• H04B3/544

  Setting up communications; Call and signalling arrangements · CPC title

• H04L25/03

  Shaping networks in transmitter or receiver, e.g. adaptive shaping networks · CPC title

• H04B3/06 Primary

  by the transmitted signal · CPC title

• H04L25/03343

  Arrangements at the transmitter end · CPC title