System and method of on-body mobile devices to reduce radiation exposure to the upper body

• US 9,306,681 B2
• Filed: 01/13/2011
• Issued: 04/05/2016
• Est. Priority Date: 01/13/2011
• Status: Active Grant

• Current Assignee: Minnesota Techworks LLC
• Original Assignee: Minnesota Techworks LLC
• Inventors: Malinen, Eric James
• Primary Examiner(s): Lu, Zhiyu
• Application Number:
  US12/929,307
• Publication Number:
  US 20120184215A1
• Time in Patent Office: 1,909 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 17/23 Indication means, e.g. displays, alarms, audible means

Abstract

A system of mobile devices that reduces the transmission strength of outgoing signals originating from a handheld device, and sends such signals to a second device, situated near or on a lower-body location, where the signals may be amplified to the current permitted maximum transmission strength vis-a-vis the brain (SAR), or above that level to the greater maximum strength permitted in the areas of, e.g., the feet and ankles, where the signal is then sent outward. The devices divert radio frequency (RF) radiation exposure downward toward the lower extremities. The intelligence and power of the devices may be split between two or more devices, resulting in longer use time, deeper and more complex computing capability, and fewer disruptions due to power. In addition, a benefit in one or more embodiments is better, more reliable reception, due to the use of two or more coordinated receiving antennas.

Claims

1. A mobile system for pushing downward radio frequency (RF) communication signals generated by at least one mobile electronic device toward a lower portion of a body of a user of the at least one mobile electronic device in order to lower RF radiation exposure at a head or an upper portion of the body of the user, comprising:

at least one first transceiver in the at least one mobile electronic device and arranged to be placed on or adjacent to the head or the upper portion of the body of the user; and

at least one second transceiver that communicates with the at least one first transceiver, the at least one second transceiver being on the body of the user at a position lower than the at least one first transceiver,

wherein the at least one first transceiver is configured to establish RF communication with the at least one second transceiver using low-power, short-range RF communication signals,

wherein the at least one second transceiver is configured to boost a signal strength of the short-range RF communication signals to high-power, long-range communication signals and then to retransmit the long-range RF communication signals to a remote recipient, so that the RF radiation exposure at the head or the upper portion of the body of the user is reduced; and

wherein the at least one second transceiver switches into emergency text-only mode when the at least one first transceiver has almost run out of power.

2. The mobile system according to claim 1, further comprising at least one of a buffer, shield or filter between the lower portion of the body of the user and the at least one second transceiver, to lessen the RF radiation to a closest body part.

3. The mobile system according to claim 1, wherein the at least one second transceiver is configured to use adaptive power control to vary power so as to control and/or cap the SAR of the long-range signals to less than or equal to 1.6 W/kg.

4. The mobile system according to claim 1, wherein the at least one second transceiver is integral with or directly attached to an exterior surface of one of a shoe, a sock and an anklet of the user.

5. The mobile system according to claim 1, wherein the at least one first transceiver comprises a switch that enables the at least one first transceiver to directly receive and transmit the long-range RF communication signals.

6. The mobile communication system according to claim 1, wherein the at least one first transceiver is placed immediately adjacent to an ear of the user, and

wherein the at least one second transceiver is on a leg of the user.

7. The mobile communication system according to claim 1, wherein the at least one mobile device comprises one of a cellular telephone, a tablet, a netbook, a laptop computer, a reader, a hand-held gaming device, a mobile gambling device and a geosynchronous position system (GPS) device.

8. The mobile communication system according to claim 1, wherein the SAR of the long-range signals is greater than 1.6 W/kg.

9. The mobile system according to claim 1, wherein there are at least two first transceivers.

10. The mobile system according to claim 1, wherein the mobile system, utilizing multiple transceivers, is adjustable to utilize higher than normal SAR capabilities or higher federal agency or military SAR Possibilities.

11. The mobile system according to claim 1, wherein the mobile system, utilizing multiple transceivers, has multiple battery or other internal power capability.

12. The mobile system according to claim 1, wherein the mobile system, utilizing multiple transceivers, has multiple, enhanced reception capability.

13. The mobile system according to claim 1, wherein the at least one mobile electronic device comprises an on-body cellular telephone, and the at least one second transceiver comprises an on-body cellular telephone, the cellular telephones working together synergistically, in tandem, to accomplish in real time voice calls and messaging.