Switch device and power supply control system

• US 9,847,199 B2
• Filed: 03/16/2015
• Issued: 12/19/2017
• Est. Priority Date: 12/27/2006
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Fukutome, Takahiro
• Primary Examiner(s): Amaya, Carlos
• Application Number:
  US14/658,543
• Publication Number:
  US 20150189597A1
• Time in Patent Office: 1,009 Days
• Field of Search: 307112, 307116, 307129, 307126
• CPC Class Codes: H01H 63/36 Circuit arrangements for ensuring correct or desired operation and not adapted to a particular application of the selector switch
• CPC Class Codes: H02B 1/24 Circuit arrangements for boards or switchyards
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H04B 1/0003 Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain digital baseband systems H04L25/00; digital modulation/demodulation H04L27/00; CDMA H04B1/707; TDMA H04B7/2643; image transmission H04N5/00
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04M 1/73 Battery saving arrangements
• CPC Class Codes: H04W 52/0225 using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 52/0251 using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: H04W 52/0254 detecting a user operation or a tactile contact or a motion of the device
• CPC Class Codes: H04W 52/0261 managing power supply demand, e.g. depending on battery level
• CPC Class Codes: H04W 52/0274 by switching on or off the equipment or parts thereof
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y04S 20/20 End-user application control systems

Abstract

The switch device includes a control switch that turns on/off an electrical connection between an apparatus and the power supply, a condition judging circuit that judges conditions of driving the control switch, an electric wave reception circuit that receives an electric wave, and a power supply circuit that generates power from the electric wave received by the electric wave reception circuit. An electric wave transmission device that transmits an electric wave for making the switch device operate is arranged in a space, whereby the electric wave can be received by the electric wave reception device in the specific space. The switch device controls the control switch to be turned off/on when the electric wave is received. Alternatively, when the electric wave is not received, the switch device turns on/off the control switch.

Claims

1. An electronic apparatus comprising:

a display panel and a circuit board,

wherein the circuit board comprises;

a first circuit capable of receiving an electric wave;

a second circuit capable of generating a power from the electric wave received in the first circuit;

a third circuit capable of judging a signal from the second circuit;

a fourth circuit capable of switching a mode of the electronic apparatus in accordance with a signal from the third circuit.

2. The electronic apparatus according to claim 1, further comprising:

a sensor circuit operationally connected to the third circuit.

3. The electronic apparatus according to claim 1, further comprising:

a battery capable of supplying power to the electronic apparatus.

4. The electronic apparatus according to claim 1, wherein the fourth circuit is capable of turning off the electronic apparatus.

5. The electronic apparatus according to claim 1, wherein the electronic apparatus is one of a camera, a game machine, a music reproducer, and an image reproducer.

6. The electronic apparatus according to claim 1, further comprising one of operation keys, an audio input portion, and an audio output portion.

7. An electronic apparatus configured to emit an electric wave comprising:

a display panel, an antenna, and a circuit board,

wherein the circuit board comprises;

a first circuit capable of receiving an electric wave;

a second circuit capable of generating a power from the electric wave received in the first circuit;

a third circuit capable of judging a signal from the second circuit;

a fourth circuit capable of switching a mode of the electronic apparatus in accordance with a signal from the third circuit.

8. The electronic apparatus according to claim 7, further comprising:

a sensor circuit operationally connected to the third circuit.

9. The electronic apparatus according to claim 8, wherein the sensor circuit is an acceleration sensor.

10. The electronic apparatus according to claim 7, further comprising:

a battery capable of supplying power to the electronic apparatus.

11. The electronic apparatus according to claim 7, wherein the fourth circuit is capable of turning off the electronic apparatus.

12. The electronic apparatus according to claim 7, wherein the fourth circuit is capable of setting the electronic apparatus to a silent mode.

13. The electronic apparatus according to claim 7, further comprising one of operation keys, an audio input portion, and an audio output portion.

14. A cellular phone comprising:

a display panel, an antenna, and a circuit board,

wherein the circuit board comprises;

a first circuit capable of receiving an electric wave;

a second circuit capable of generating a power from the electric wave received in the first circuit;

a third circuit capable of judging a signal from the second circuit;

a fourth circuit capable of switching a mode of the cellular phone in accordance with a signal from the third circuit.

15. The cellular phone according to claim 14, further comprising:

a sensor circuit operationally connected to the third circuit.

16. The cellular phone according to claim 15, wherein the sensor circuit is an acceleration sensor.

17. The cellular phone according to claim 14, further comprising:

a battery capable of supplying power to the cellular phone.

18. The cellular phone according to claim 14, wherein the fourth circuit is capable of turning off the cellular phone.

19. The cellular phone according to claim 14, wherein the fourth circuit is capable of setting the cellular phone to a silent mode.

20. The cellular phone according to claim 14, further comprising one of operation keys, an audio input portion, and an audio output portion.