Method and system to minimize radiation exposure from mobile phones and devices

• US 9,191,055 B2
• Filed: 12/23/2010
• Issued: 11/17/2015
• Est. Priority Date: 12/28/2009
• Status: Active Grant

• Current Assignee: Green Swan Incorporated
• Original Assignee: Green Swan Incorporated
• Inventors: Lehmann, Harry V.
• Primary Examiner(s): Urban, Edward
• Assistant Examiner(s): HU, RUI MENG
• Application Number:
  US12/978,142
• Publication Number:
  US 20110159920A1
• Time in Patent Office: 1,790 Days
• Field of Search: 4551151-1154, 455/126, 455/127.1, 455/67.11, 455 6714- 677, 455/117, 455/575.5, 455/575.8, 455/556.1, 455/556.2, 455 411- 413
• US Class Current: 1/1
• CPC Class Codes: H04B 1/3838 Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/03 Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Abstract

Mobile devices may minimize the radiation exposure to users by controlling the distance between the user, specifically the head, and the mobile device to a minimum distance. The reduction in exposure is realized due to the operation of the Inverse Square Rule on electromagnetic signal from the mobile device recognizing there is a steep fall off of signal strength resultant from increased distance between the head of the user and the source of the signal. Embodiments increase and maintain operational distance between the user and the broadcast device to reduce signal absorption. Enabled mobile devices increase and maintain the operational distance by detecting when the distance is breached by a variety of methods and then alerting the user. Sound and electromagnetic waves may be used to determine the proximity of the mobile device to the user, in addition image processing typically resident on some mobile devices may also be used to determine proximity to the user. Embodiments disable harmful features such as broadcasting when the operation distance is breached for a period of time or the radiation exposure exceeds a threshold. Other embodiments enforce the operational distance with physical barriers preventing the distance from being reduced. Embodiments influence the user to maintain a minimum distance via alerts, interruptions and warnings. Thus maintaining a minimum distance between the user and the transmitter may have a dramatic practical effect.

Claims

1. A method of preventing excessive exposure of a user from a mobile device during communication with the mobile device comprising

emitting a wave from the mobile device;

detecting a reflection of the emitted wave at the mobile device;

determining based on the emitted wave and the reflected wave a proximity of the mobile device to the users head; and

,

comparing the proximity to a predetermined threshold and alerting the user if the threshold is exceeded, wherein the step of alerting the user further comprises adjusting an intensity of the alert based on the degree to which the threshold is exceeded.