Radiation alleviation

Patent metadata

Field	Value
Publication number	US-9787344-B2
Application number	US-201414785882-A
Country	US
Kind code	B2
Filing date	May 13, 2014
Priority date	May 13, 2014
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

In some examples, a mobile device includes a radiation sensor configured to measure an amount of radiation surrounding a corresponding device that is communicatively connected to a second device and/or a third device, a comparator configured to compare the measured amount of radiation to a predetermined radiation threshold, a wireless communication manager configured to report to the second device and/or the third device a result output from the comparison module, and a collaboration manager configured to collaborate with the second device.

First claim

We claim:

1. A method to reduce radiation that surrounds a first device, the method comprising:
measuring, at least once within a specific period of time, an amount of the radiation that surrounds the first device, wherein the first device is communicatively connected to a second device;
comparing the measured amount of the radiation to a specific radiation threshold; and
in response to the measured amount of the radiation being greater than or equal to the specific radiation threshold:
reporting, to the second device, the measured amount of the radiation, and
collaborating, by the first device, with the second device to reduce the measured amount of the radiation that surrounds the first device, wherein the collaborating comprises alternating, with the second device, between operating in a currently used communication protocol and operating in a secondary communication protocol in consecutive time frames over a subsequent specific period.

2. The method of claim 1 , wherein the measured amount of the radiation corresponds to an amount of radiation that corresponds to signals received from the second device.

3. The method of claim 2 , wherein the measured amount of the radiation is greater than or equal to the specific radiation threshold for a specific number of times during the specific period of time.

4. The method of claim 1 , further comprising in response to the measured amount of the radiation being less than the specific radiation threshold, switching the first device to a first normal radiation mode.

5. The method of claim 4 , further comprising in response to the measured amount of the radiation being less than the specific radiation threshold, instructing the second device to switch to a second normal radiation mode.

6. The method of claim 1 , wherein the operating in the secondary communication protocol comprises emitting a lower amount of the radiation than when operating in the currently used communication protocol.

7. The method of claim 6 , wherein:
the collaborating reduces the amount of the radiation by (V+1)/2V, and
V is a spreading factor that, when applied to the operation in the secondary communication protocol, produces similar transmission performance as the currently used communication protocol.

8. The method of claim 1 , wherein the currently used communication protocol is orthogonal frequency division multiplexing (OFDM).

9. The method of claim 1 , wherein the secondary communication protocol is Code Division Multiple Access (CDMA).

10. The method of claim 1 , wherein the collaborating comprises multiplying a transmit signal by an adaptive radiation control factor to control a radiation amount of the transmit signal.

11. The method of claim 1 , further comprising:
measuring, one or more times, the amount of the radiation that surrounds the first device during the collaborating;
comparing the amount of the radiation measured during the collaborating to the specific radiation threshold; and
in response to the amount of the radiation measured during the collaborating being less than the specific radiation threshold, instructing the second device to return to the currently used communication protocol.

12. A non-transitory computer-readable medium that stores executable instructions that, in response to being executed, cause a processor to perform operations to reduce radiation that surrounds a first device, the operations comprising:
measuring an amount of the radiation, emitted from a plurality of devices, which surrounds the first device of the plurality of devices;
comparing the measured amount of the radiation to a specific radiation threshold;
in response to the measured amount of the radiation being greater than or equal to the specific radiation threshold:
reporting, to the plurality of devices, the measured amount of the radiation, and
dividing the plurality of devices into pairs of devices to respectively collaborate with each other to reduce the measured amount of the radiation that surrounds the first device; and
in response to the measured amount of the radiation being less than the specific radiation threshold, switching the first device to a normal radiation mode.

13. The non-transitory computer-readable medium of claim 12 , further in response to the measured amount of the radiation being greater than or equal to the specific radiation threshold, instructing a first pair and second pair of the pairs of devices to alternate between operating in a currently used communication protocol and operating in a secondary communication protocol in consecutive time frames over a subsequent specific period of time.

14. The non-transitory computer-readable medium of claim 12 , further in response to the measured amount of the radiation being greater than or equal to the specific radiation threshold, instructing a second device and a third device of a first pair of the pairs of devices to alternate between a currently used communication protocol and a secondary communication protocol in consecutive time frames over a subsequent specific period of time.

15. An apparatus, comprising:
a radiation sensor configured to measure an amount of radiation that surrounds a first device, wherein the first device is communicatively connected to a second device;
a comparator, communicatively coupled to the radiation sensor, configured to compare the measured amount of the radiation to a specific radiation threshold;
a wireless communication manager, communicatively coupled to the comparator, configured to report to the second device the measured amount of the radiation, in response to the measured amount of the radiation being greater than or equal to the specific radiation threshold; and
a collaboration manager, communicatively coupled to the wireless communication manager, configured to collaborate with the second device to reduce the measured amount of the radiation that surrounds the first device, wherein to collaborate with the second device, the collaboration manager is configured to multiply a transmit signal by an adaptive radiation control factor to control a radiation amount of the transmit signal.

16. The apparatus of claim 15 , wherein to collaborate with the second device, the collaboration manager is configured to alternate, with the second device, between operation in a currently used communication protocol and operation in a secondary communication protocol in consecutive time frames over a specific period of time.

17. The apparatus of claim 15 , wherein the collaborating comprises alternating, with the second device, between operating in a currently used communication protocol and operating in a secondary communication protocol within a time frame over a specific period of time.

18. The apparatus of claim 15 , wherein the collaboration manager is configured to switch the first device to a normal radiation mode, in response to the measured amount of the radiation being less than the specific radiation threshold.

19. A system, comprising:
a first device communicatively connected to a second device, the first device configured to:
measure, at least once within a specific period of time, an amount of radiation that surrounds the first device;
compare the measured amount of the radiation to a specific radiation threshold; and
in response to the measured amount of the radiation being greater than or equal to the specific radiation threshold:
report, to the second device, the measured amount of the radiation, and
collaborate, by the first device, with the second device to reduce the measured amo

Assignees

• Empire Technology Dev Llc
• Xiao Yue
• Fang Jun
• Empire Technology Dev Llc

Inventors

• Xiao Yue
• Fang Jun

Classifications

• H04B1/3838 Primary

  Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use · CPC title

• H04W52/18

  TPC being performed according to specific parameters · CPC title

• H04B2001/3844

  with means to alert the user that a certain exposure has been reached · CPC title