Method and system for reducing radiation damage from mobile terminals

Patent metadata

Field	Value
Publication number	US-10848193-B2
Application number	US-201716334376-A
Country	US
Kind code	B2
Filing date	Aug 3, 2017
Priority date	Sep 21, 2016
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A method and a system for reducing radiation damage from a mobile terminal are provided. The method includes the following steps: responsive to the mobile terminal being in a call answering state, switching a main transceiver path of the mobile terminal to an upper antenna; and responsive to a receiver of the mobile terminal is in a working state, reducing a radio frequency transmit power of the upper antenna of the mobile terminal. When determining that the user is in a call while being close to the mobile terminal and that the main transceiver path is switched to the upper antenna, the present disclosure reduces the radio frequency transmit power of the upper antenna, of the mobile terminal by a radio frequency chip, thereby reducing an SAR value so as to prevent the radiation of the mobile terminal from harming the user.

First claim

What is claimed is:

1. A method for reducing radiation damage from a mobile terminal, comprising steps of:
responsive to the mobile terminal being in a call answering state, switching a main transceiver path of the mobile terminal to an upper antenna; and
responsive to a receiver of the mobile terminal is in a working state, reducing a radio frequency transmit power of the upper antenna of the mobile terminal;
wherein responsive to a receiver of the mobile terminal is in a working state, reducing a radio frequency transmit power of the upper antenna of the mobile terminal comprises:
sending a power reduction instruction to a shared memory of the mobile terminal by the mobile terminal; and
using a radio frequency chip to of the mobile terminal to reduce a radio frequency transmit power of the upper antenna of the mobile terminal by calling the power reduction instruction in the shared memory, thereby reducing the radiation damage from the mobile terminal to the user.

2. The method for reducing radiation damage from a mobile terminal according to claim 1 , wherein responsive to the mobile terminal being in a call answering state, switching a main transceiver path of the mobile terminal to an upper antenna comprises:
when the mobile terminal is in the call answering state, detecting an electrical signal of the upper antenna and a lower antenna by a central processing unit of the mobile terminal, and determining whether the main transceiver path is switched to the upper antenna;
when a level of the electrical signal of the upper antenna is higher than a level of the electrical signal of the lower antenna, then determining that the main transceiver path is switched to the upper antenna; and
when the level of the electrical signal of the upper antenna is lower than the level of the electrical signal of the lower antenna, then determining that the main transceiver path is connected to the lower antenna.

3. The method for reducing radiation damage from a mobile terminal according to claim 1 , wherein the mobile terminal is a smartphone.

4. A method for reducing radiation damage from a mobile terminal, comprising steps of:
responsive to the mobile terminal being in a call answering state, switching a main transceiver path of the mobile terminal to an upper antenna; and
responsive to a receiver of the mobile terminal is in a working state, reducing a radio frequency transmit power of the upper antenna of the mobile terminal;
wherein responsive to a receiver of the mobile terminal is in a working state, reducing a radio frequency transmit power of the upper antenna of the mobile terminal comprises:
detecting whether an open receiver working statement appears in a hardware abstraction layer (HAL layer) code of the mobile terminal, determining whether the receiver of the mobile terminal is in the working state;
when the open receiver working statement appears in the HAL layer code of the mobile terminal, then determining that the receiver of the mobile terminal is in the working state; and
when the open receiver working statement does not appear in the HAL layer code of the mobile terminal, then determining that the receiver of the mobile terminal is in a non-working state.

5. A method for reducing radiation damage from a mobile terminal, comprising steps of:
when a mobile terminal is in a call answering state, detecting an electrical signal of an upper antenna and a lower antenna by a central processing unit of the mobile terminal, and determining whether a main transceiver path is switched to the upper antenna;
when a level of the electrical signal of the upper antenna is higher than a level of the electrical signal of the lower antenna, then determining that the main transceiver path is switched to the upper antenna;
when the level of the electrical signal of the upper antenna is lower than the level of the electrical signal of the lower antenna, then determining that the main transceiver path is connected to the lower antenna;
detecting whether an open receiver working statement appears in a hardware abstraction layer (HAL layer) code of the mobile terminal, determining whether a receiver of the mobile terminal is in a working state;
when the open receiver working statement appears in the HAL layer code of the mobile terminal, then determining that the receiver of the mobile terminal is in the working state;
when the open receiver working statement does not appear in the HAL layer code of the mobile terminal, then determining that the receiver of the mobile terminal is in a non-working state;
sending a power reduction instruction to a shared memory of the mobile terminal by the mobile terminal; and
using a radio frequency chip to reduce a radio frequency transmit power of the upper antenna of the mobile terminal by calling the power reduction instruction in the shared memory, thereby reducing a radiation damage from the mobile terminal to a user.

6. The method for reducing radiation damage from a mobile terminal according to claim 5 , wherein the mobile terminal is a smartphone.

7. A system for reducing radiation damage from a mobile terminal, comprising:
a processor;
a memory connected with the processor, and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processors; the one or more applications comprises:
a first detecting module for detecting whether a main transceiver path of a mobile terminal is switched to an upper antenna when the mobile terminal is in a call answering state;
a second detecting module for detecting whether a receiver of the mobile terminal is in a working state, wherein the second detecting module comprises:
a second determining unit for detecting whether an open receiver working statement appears in a hardware abstraction layer (HAL layer) code of the mobile terminal, and determine whether the receiver of the mobile terminal is in the working state;
a third decision unit for determining that the receiver of the mobile terminal is in the working state, when the open receiver working statement appears in the HAL layer code of the mobile terminal; and
a fourth decision unit for determining that the receiver of the mobile terminal is in a non-working state, when the open receiver working statement does not appear in the HAL layer code of the mobile terminal;
a RF transmitting module for reducing a radio frequency transmit power of the upper antenna of the mobile terminal, thereby reducing the radiation damage from the mobile terminal to the user.

8. The system for reducing radiation damage from a mobile terminal according to claim 7 , wherein the first detecting module comprises:
a first determining unit for detecting an electrical signal of the upper antenna and a lower antenna by a central processing unit, when the mobile terminal is in the call answering state, and determine whether the main transceiver path is switched to the upper antenna;
a first decision unit for determining that the main transceiver path is switched to the upper antenna, when a level of the electrical signal of the upper antenna is higher than a level of the electrical signal of the lower antenna; and
a second decision unit for determining that the main transceiver path is connected to the lower antenna, when the level of the electrical signal of the upper antenna is lower than the level of the electrical signal of the lower antenna, and end process.

9. The system for reducing radiation damage from a mobile terminal according to claim 7 , wherein the RF transmitting module comprises:
an instruction sending unit for sending a power reduction instruction to a shared memory by the mobile terminal; and
a reduce transmit power unit for usi

Assignees

• Jrd Communication Inc

Inventors

• Li Yubiao
• Wang Wen

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

• H04M1/72484

  wherein functions are triggered by incoming communication events · CPC title

• H04M1/72463

  to restrict the functionality of the device · CPC title

• H04B1/3888

  Arrangements for carrying or protecting transceivers · CPC title

• H04W52/288

  taking into account the usage mode, e.g. hands-free, data transmission or telephone · CPC title