Switch device and power supply control system

• US 9,984,844 B2
• Filed: 08/23/2016
• Issued: 05/29/2018
• 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:
  US15/244,346
• Publication Number:
  US 20160358734A1
• Time in Patent Office: 644 Days
• Field of Search: 307112
• 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 signal reception circuit;

a condition judging circuit functionally connected to an output of the signal reception circuit; and

a control circuit functionally connected to an output of the condition judging circuit,

wherein the control circuit is configured to disable a function of the electronic apparatus when the condition judging circuit outputs a control signal depending on a signal received by the signal reception circuit, and

wherein the electronic apparatus is configured to automatically disable the function of the electronic apparatus upon reception of the signal.

2. The electronic apparatus according to claim 1,

wherein the signal reception circuit, the condition judging circuit, and the control circuit are part of a switch device mounted in the electronic apparatus.

3. The electronic apparatus according to claim 1,

wherein the electronic apparatus is configured to automatically disable a ring alert of the electronic apparatus upon reception of the signal.

4. The electronic apparatus according to claim 1, further comprising a power supply circuit connected between the signal reception circuit and the condition judging circuit, and configured to generate power from the signal,

wherein the signal reception circuit is an electric wave reception circuit, and

wherein the condition judging circuit is configured to output the control signal upon detection of power generated by the power supply circuit.

5. An electronic apparatus comprising:

a signal reception circuit;

a condition judging circuit functionally connected to an output of the signal reception circuit; and

a control circuit functionally connected to an output of the condition judging circuit,

wherein the control circuit is configured to change a mode of the electronic apparatus when the condition judging circuit outputs a control signal depending on a signal received by the signal reception circuit, and

wherein the electronic apparatus is configured to automatically change the mode of the electronic apparatus upon reception of the signal.

6. The electronic apparatus according to claim 5,

wherein the signal reception circuit, the condition judging circuit, and the control circuit are part of a switch device mounted in the electronic apparatus.

7. The electronic apparatus according to claim 5,

wherein the electronic apparatus is configured to automatically set the mode of the electronic apparatus to a silent mode upon reception of the signal.

8. The electronic apparatus according to claim 5, further comprising a power supply circuit connected between the signal reception circuit and the condition judging circuit, and configured to generate power from the signal,

wherein the signal reception circuit is an electric wave reception circuit, and

wherein the condition judging circuit is configured to output the control signal upon detection of power generated by the power supply circuit.

9. An electronic apparatus comprising:

a signal reception circuit;

a condition judging circuit functionally connected to an output of the signal reception circuit;

a control switch functionally connected to an output of the condition judging circuit; and

a circuit functionally connected to the control switch,

wherein the control switch is configured to cut supply of power to the circuit when the condition judging circuit outputs a control signal depending on a signal received by the signal reception circuit, and

wherein the electronic apparatus is configured to automatically cut supply of power to the circuit upon reception of the signal.

10. The electronic apparatus according to claim 9,

wherein the signal reception circuit, the condition judging circuit, and the control switch are part of a switch device mounted in the electronic apparatus.

11. The electronic apparatus according to claim 9, further comprising a second switch and a power supply,

wherein the second switch and the control switch are connected in series between the power supply and the circuit, and

wherein the second switch is controllable by a user.

12. The electronic apparatus according to claim 9, further comprising a power supply circuit connected between the signal reception circuit and the condition judging circuit, and configured to generate power from the signal,

wherein the signal reception circuit is an electric wave reception circuit, and

wherein the condition judging circuit is configured to output the control signal upon detection of power generated by the power supply circuit.