TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION SYSTEM

• US 20120300860A1
• Filed: 08/15/2011
• Published: 11/29/2012
• Est. Priority Date: 08/24/2010
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Washiro, Takanori
• Granted Patent: US 9,419,688 B2
• Time in Patent Office: Days
• US Class Current: 375/257
• CPC Class Codes: H04B 2203/5416 by adding signals to the wave form of the power source
• CPC Class Codes: H04B 2203/5441 Wireless systems or telephone
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04B 5/26 using coils

Abstract

Provided is a transmission device including a terminal connected electrically to a terminal of another device, and a transmission unit configured to transmit information through the terminal by performing load modulation according to contact between the terminal and the terminal of the other device.

Claims

1. A transmission device comprising:

a terminal connected electrically to a terminal of another device; and

a transmission unit configured to transmit information through the terminal by performing load modulation according to contact between the terminal and the terminal of the other device.

2. The transmission device according to claim 1, wherein the transmission unit transmits the information regardless of whether a signal indicating an instruction of a user is input after the contact is made between the terminal and the terminal of the other device.

3. The transmission device according to claim 1, wherein the transmission unit receives power supply through the terminal by the contact between the terminal and the terminal of the other device.

4. The transmission device according to claim 3, wherein the transmission unit receives a high frequency signal from the terminal as drive power.

5. The transmission device according to claim 4, further comprising

a drive unit configured to drive by receiving a direct current or an alternating current having a lower frequency than the high frequency signal from the terminal as the drive power,

wherein the drive unit receives the direct current or the alternating current according to a result of an authentication process executed in the other device using the information.

6. The transmission device according to claim 4, wherein the high frequency signal is a frequency used in Radio Frequency IDentification (RFID).

7. The transmission device according to claim 6, wherein the frequency includes a frequency used in contactless communication.

8. The transmission device according to claim 6, wherein the frequency includes at least one of 130 to 135 kHz, 13.56 MHz, 56 MHz, 433 MHz, 954.2 MHz, 954.8 MHz, 2441.75 MHz, or 2448.875 MHz.

9. The transmission device according to claim 5, comprising

a filter configured to pass the high frequency signal and block the direct current or the alternating current.

10. The transmission device according to claim 1, wherein the transmission device includes at least two terminals, and the other device includes at least two terminals.

11. The transmission device according to claim 1, wherein the terminal of the transmission device is a terminal provided at a plug, and the terminal of the other device is a terminal provided at an outlet.

12. The transmission device according to claim 1, comprising

a display unit configured to display a image and/or a character.

13. The transmission device according to claim 1, wherein the transmission device is a vehicle that charges a built-in battery by receiving power supply, and rotates a wheel using power of the built-in battery.

14. A reception device comprising:

a high frequency signal output unit configured to output a high frequency signal; and

a reception unit configured to receive information transmitted from a transmission device by load modulation when a terminal of the transmission device and a terminal of the reception device are in contact with each other.

15. The reception device according to claim 14, wherein the high frequency signal is output when the contact between the terminal of the transmission device and the terminal of the reception device is detected.

16. The reception device according to claim 14, wherein the high frequency signal output unit outputs the high frequency signal repeatedly.

17. The reception device according to claim 14, wherein the high frequency signal output unit superimposes the high frequency signal having a higher frequency than a direct current or an alternating current flowing through a power line, on the direct current or the alternating current.

18. The reception device according to claim 14, wherein the high frequency signal is a frequency used in Radio Frequency IDentification (RFID).

19. The reception device according to claim 14, wherein the frequency includes a frequency used in contactless communication.

20. The reception device according to claim 14, wherein the frequency includes at least one of 130 to 135 kHz, 13.56 MHz, 56 MHz, 433 MHz, 954.2 MHz, 954.8 MHz, 2441.75 MHz, or 2448.875 MHz.

21. The reception device according to claim 14, further comprising

a filter configured to pass the high frequency signal and block the alternating current.

22. The reception device according to claim 14, wherein the terminal of the transmission device is a terminal provided at a plug, and the terminal of the reception device is a terminal provided at an outlet.

23. The reception device according to claim 14, wherein the transmission device includes at least two terminals, and the reception device includes at least two terminals.

24. The reception device according to claim 14, wherein the transmission device is identified based on the information transmitted from the transmission device by the load modulation.

25. The reception device according to claim 14, comprising

a display unit configured to display an image and/or a character.

26. The reception device according to claim 14, wherein the reception device is a vehicle.

27. A communication system comprising:

a transmission device; and

a reception device,

wherein the transmission device includes

a terminal connected electrically to a terminal of the reception device, and

a transmission unit configured to transmit information through the terminal by performing load modulation according to contact between the terminal and the terminal of the reception device, and

wherein the reception unit includes

a high frequency signal output unit configured to output a high frequency signal, and

a reception unit configured to receive the information transmitted from the transmission device by the load modulation when the terminal of the transmission device and the terminal of the reception device are in contact with each other.