Transmission device and communication system

Patent metadata

Field	Value
Publication number	US-10187227-B2
Application number	US-201715440937-A
Country	US
Kind code	B2
Filing date	Feb 23, 2017
Priority date	Mar 25, 2014
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A transmission device of the disclosure includes a first selector configured to select one of a first signal and a second signal, and output the selected signal; a second selector configured to select one of an inversion signal of the first signal, the second signal, and an inversion signal of the second signal, and output the selected signal; a first control signal generator configured to generate a first control signal, a second control signal, and a third control signal, based on the first signal, the second signal, and a third signal; a first driver configured to set a voltage of a first output terminal, based on an output signal of the first selector and the first control signal; and a second driver configured to set a voltage of a second output terminal, based on an output signal of the second selector and the second control signal.

First claim

The invention claimed is:

1. A transmission device comprising:
a transmitter having a first driver and a first output terminal that is electrically connected to the first driver, wherein the first driver is configured to
in a first operation mode and based on a first signal and a second signal from a driver controller, selectively set a voltage of the first output terminal to one of a first voltage or a second voltage,
in a second operation mode and based on the first signal and the second signal, exclusively set the voltage of the first output terminal to one of a third voltage, a fourth voltage, or a fifth voltage.

2. The transmission device according to claim 1 ,
wherein the transmitter further includes a second driver and a second output terminal that is electrically connected to the second driver, and
wherein, in the first operation mode and based on a third signal and a fourth signal, the second driver is configured to selectively set a voltage of the second output terminal to one of the first voltage or the second voltage.

3. The transmission device according to claim 2 , wherein the voltage of the first output terminal is different from the voltage of the second output terminal.

4. The transmission device according to claim 1 ,
wherein the transmitter further includes a second driver, a third driver, a second output terminal that is electrically connected to the second driver, and a third output terminal that is electrically connected to the third driver,
wherein, in the second operation mode and based on at least one of a third signal and a fourth signal, the second driver is configured to exclusively set a voltage of the second output terminal to one of the third voltage, the fourth voltage, or the fifth voltage, wherein the fourth signal is based at least in part on an exclusively set voltage of the first output terminal, and
wherein, in the second operation mode and based on at least one of a fifth signal and a sixth signal, the third driver is configured to exclusively set a voltage of the third output terminal to one of the third voltage, the fourth voltage, or the fifth voltage, wherein the sixth signal is based at least in part on an exclusively set voltage of the second output terminal.

5. The transmission device according to claim 4 , wherein the voltage of the first output terminal is different from the voltage of the second output terminal and the third output terminal, and wherein the voltage of the third output terminal is different from the second output terminal.

6. The transmission device according to claim 1 , wherein the first voltage and the third voltage are a high-level voltage, wherein the second voltage and the fourth voltage are a low-level voltage, and wherein the fifth voltage is a medium-level voltage.

7. The transmission device according to claim 1 , wherein the first voltage and the third voltage have approximately the same voltage level, and wherein the second voltage and the fourth voltage have approximately the same voltage level.

8. The transmission device according to claim 1 , wherein the first signal is a first positive signal, and wherein the second signal is a first negative signal.

9. A communication system comprising:
a reception device; and
a transmission device including
a transmitter having a first driver and a first output terminal that is electrically connected to the first driver, wherein the first driver is configured to
in a first operation mode and based on a first signal and a second signal from a driver controller, selectively set a voltage of the first output terminal to one of a first voltage or a second voltage,
in a second operation mode and based on the first signal and the second signal, exclusively set the voltage of the first output terminal to one of a third voltage, a fourth voltage, or a fifth voltage.

10. The communication system according to claim 9 ,
wherein the transmitter further includes a second driver and a second output terminal that is electrically connected to the second driver, and
wherein, in the first operation mode and based on a third signal and a fourth signal, the second driver is configured to selectively set a voltage of the second output terminal to one of the first voltage or the second voltage.

11. The communication system according to claim 10 , wherein the voltage of the first output terminal is different from the voltage of the second output terminal.

12. The communication system according to claim 9 ,
wherein the transmitter further includes a second driver, a third driver, a second output terminal that is electrically connected to the second driver, and a third output terminal that is electrically connected to the third driver,
wherein, in the second operation mode and based on at least one of a third signal and a fourth signal, the second driver is configured to exclusively set a voltage of the second output terminal to one of the third voltage, the fourth voltage, or the fifth voltage, wherein the fourth signal is based at least in part on an exclusively set voltage of the first output terminal, and
wherein, in the second operation mode and based on at least one of a fifth signal and a sixth signal, the third driver is configured to exclusively set a voltage of the third output terminal to one of the third voltage, the fourth voltage, or the fifth voltage, wherein the sixth signal is based at least in part on an exclusively set voltage of the second output terminal.

13. The communication system according to claim 12 , wherein the voltage of the first output terminal is different from the voltage of the second output terminal and the third output terminal, and wherein the voltage of the third output terminal is different from the second output terminal.

14. The communication system according to claim 9 , wherein the first voltage and the third voltage are a high-level voltage, wherein the second voltage and the fourth voltage are a low-level voltage, and wherein the fifth voltage is a medium-level voltage.

15. The communication system according to claim 9 , wherein the first voltage and the third voltage have approximately the same voltage level, and wherein the second voltage and the fourth voltage have approximately the same voltage level.

16. The communication system according to claim 9 , wherein the first signal is a first positive signal, and wherein the second signal is a first negative signal.

17. A transmission device comprising:
a transmitter having
a first driver;
a second driver;
a third driver;
a first output terminal that is electrically connected to the first driver;
a second output terminal that is electrically connected to the second driver; and
a third output terminal that is electrically connected to the third driver,
wherein, in a first operation mode and based on a first signal and a second signal from a driver controller, the first driver is configured to selectively set a voltage of the first output terminal to one of a first voltage or a second voltage,
wherein, in the first operation mode and based on a third signal and a fourth signal, the second driver is configured to selectively set a voltage of the second output terminal to one of the first voltage or the second voltage,
wherein, in a second operation mode and based on the first signal and the second signal, the first driver is configured to exclusively set the voltage of the first output terminal to one of a third voltage, a fourth voltage, or a fifth voltage,
wherein, in the second operation mode and based on at least one of the third signal and the fourth signal,

Assignees

• Sony Corp

Inventors

• Saeki Takanori

Classifications

• H04L25/0272

  Arrangements for coupling to multiple lines, e.g. for differential transmission · CPC title

• H03M9/00

  Parallel/series conversion or vice versa (digital stores in which the information is moved stepwise per se G11C19/00) · CPC title

• H04L25/0278 Primary

  Arrangements for impedance matching · CPC title

• H04L25/028

  Arrangements specific to the transmitter end · CPC title

• G06F21/602

  Providing cryptographic facilities or services · CPC title