WO2002005443A3 - Portable communication device with rf output power capped when the device operates in very close proximity to a human body - Google Patents

Portable communication device with rf output power capped when the device operates in very close proximity to a human body Download PDF

Info

Publication number
WO2002005443A3
WO2002005443A3 PCT/US2001/041059 US0141059W WO0205443A3 WO 2002005443 A3 WO2002005443 A3 WO 2002005443A3 US 0141059 W US0141059 W US 0141059W WO 0205443 A3 WO0205443 A3 WO 0205443A3
Authority
WO
WIPO (PCT)
Prior art keywords
human body
output power
close proximity
portable communication
communication device
Prior art date
Application number
PCT/US2001/041059
Other languages
French (fr)
Other versions
WO2002005443A2 (en
Inventor
David R Irvin
Nils Rydbeck
Gerard J Hayes
Original Assignee
Ericsson Inc
David R Irvin
Nils Rydbeck
Gerard J Hayes
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Inc, David R Irvin, Nils Rydbeck, Gerard J Hayes filed Critical Ericsson Inc
Priority to AU2001272021A priority Critical patent/AU2001272021A1/en
Publication of WO2002005443A2 publication Critical patent/WO2002005443A2/en
Publication of WO2002005443A3 publication Critical patent/WO2002005443A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/283—Power depending on the position of the mobile

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A mobile terminal (10) used in a wireless communication system is operable to limit transmitter power if proximate a human body. The mobile terminal includes a housing (11). A transmitter (18) in the housing is connected to an antenna (12). The transmitter has a power control loop controlling transmitter power. A detector (38) detects if the housing is proximate a human body. A control (22) is operatively connected to the transmitter power control loop and to the detector, the control limiting transmitter power if the detector detects that the housing is proximate a human body.
PCT/US2001/041059 2000-07-07 2001-06-20 Portable communication device with rf output power capped when the device operates in very close proximity to a human body WO2002005443A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001272021A AU2001272021A1 (en) 2000-07-07 2001-06-20 Portable communication device with rf output power capped when the device operates in very close proximity to a human body

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61203400A 2000-07-07 2000-07-07
US09/612,034 2000-07-07

Publications (2)

Publication Number Publication Date
WO2002005443A2 WO2002005443A2 (en) 2002-01-17
WO2002005443A3 true WO2002005443A3 (en) 2002-06-27

Family

ID=24451438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/041059 WO2002005443A2 (en) 2000-07-07 2001-06-20 Portable communication device with rf output power capped when the device operates in very close proximity to a human body

Country Status (2)

Country Link
AU (1) AU2001272021A1 (en)
WO (1) WO2002005443A2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8947305B2 (en) 2009-07-17 2015-02-03 Apple Inc. Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control
US9179299B2 (en) 2010-04-13 2015-11-03 Apple Inc. Adjustable wireless circuitry with antenna-based proximity detector
US9379445B2 (en) 2014-02-14 2016-06-28 Apple Inc. Electronic device with satellite navigation system slot antennas
US9398456B2 (en) 2014-03-07 2016-07-19 Apple Inc. Electronic device with accessory-based transmit power control
US9444425B2 (en) 2014-06-20 2016-09-13 Apple Inc. Electronic device with adjustable wireless circuitry
US9559425B2 (en) 2014-03-20 2017-01-31 Apple Inc. Electronic device with slot antenna and proximity sensor
US9583838B2 (en) 2014-03-20 2017-02-28 Apple Inc. Electronic device with indirectly fed slot antennas

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136215C1 (en) * 2001-07-25 2003-02-13 Siemens Ag Transmission energy regulation method for mobile telephone limits transmission energy when used in immediate proximity to user
US7039435B2 (en) 2001-09-28 2006-05-02 Agere Systems Inc. Proximity regulation system for use with a portable cell phone and a method of operation thereof
US7024232B2 (en) * 2003-04-25 2006-04-04 Motorola, Inc. Wireless communication device with variable antenna radiation pattern and corresponding method
US7606590B2 (en) * 2004-04-07 2009-10-20 Atc Technologies, Llc Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods
US8417296B2 (en) * 2008-06-05 2013-04-09 Apple Inc. Electronic device with proximity-based radio power control
US20100317302A1 (en) * 2009-06-12 2010-12-16 Novatel Wireless System and method for controlling rf explosure levels
US8466839B2 (en) 2009-07-17 2013-06-18 Apple Inc. Electronic devices with parasitic antenna resonating elements that reduce near field radiation
US8538351B2 (en) 2010-07-20 2013-09-17 Blackberry Limited Radiation power level control system and method for a wireless communication device based on a tracked radiation history
EP2410661B1 (en) * 2010-07-20 2014-10-29 BlackBerry Limited Radiation power level control system and method for a wireless communication device based on a tracked radiation history
TWI449355B (en) * 2010-08-27 2014-08-11 Compal Electronics Inc Method for controlling function and electronic apparatus for applying thereof
US8954121B2 (en) 2010-11-26 2015-02-10 Blackberry Limited Radiation pattern recognition system and method for a mobile communications device
US8577289B2 (en) 2011-02-17 2013-11-05 Apple Inc. Antenna with integrated proximity sensor for proximity-based radio-frequency power control
CN102149177B (en) * 2011-04-19 2016-04-13 苏州佳世达电通有限公司 A kind of RF output power control method, device and mobile terminal
US8995938B2 (en) 2011-11-14 2015-03-31 Blackberry Limited Radiation power level control system and method for a wireless communication device having tunable elements
US9144051B2 (en) 2012-02-15 2015-09-22 Microchip Technology Incorporated Proximity detection using an antenna and directional coupler switch
US9093745B2 (en) 2012-05-10 2015-07-28 Apple Inc. Antenna and proximity sensor structures having printed circuit and dielectric carrier layers
US9646610B2 (en) 2012-10-30 2017-05-09 Motorola Solutions, Inc. Method and apparatus for activating a particular wireless communication device to accept speech and/or voice commands using identification data consisting of speech, voice, image recognition
US9144028B2 (en) 2012-12-31 2015-09-22 Motorola Solutions, Inc. Method and apparatus for uplink power control in a wireless communication system
US9300342B2 (en) 2013-04-18 2016-03-29 Apple Inc. Wireless device with dynamically adjusted maximum transmit powers
US9728858B2 (en) 2014-04-24 2017-08-08 Apple Inc. Electronic devices with hybrid antennas
US9791490B2 (en) 2014-06-09 2017-10-17 Apple Inc. Electronic device having coupler for tapping antenna signals
GB2533804A (en) * 2014-12-31 2016-07-06 Trust Technology World Dmcc Telephone handset provided with a remedial signal generator
US10218052B2 (en) 2015-05-12 2019-02-26 Apple Inc. Electronic device with tunable hybrid antennas
US10490881B2 (en) 2016-03-10 2019-11-26 Apple Inc. Tuning circuits for hybrid electronic device antennas
US10290946B2 (en) 2016-09-23 2019-05-14 Apple Inc. Hybrid electronic device antennas having parasitic resonating elements

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995003549A1 (en) * 1993-07-26 1995-02-02 Qualcomm Incorporated Method and apparatus for controlling the exposure to rf transmissions
EP0752735A1 (en) * 1995-07-06 1997-01-08 DeTeMobil Deutsche Telekom MobilNet GmbH Antenna device for mobile communication terminals
US5949369A (en) * 1996-12-30 1999-09-07 At & T Corp, Portable satellite phone having directional antenna for direct link to satellite

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995003549A1 (en) * 1993-07-26 1995-02-02 Qualcomm Incorporated Method and apparatus for controlling the exposure to rf transmissions
EP0752735A1 (en) * 1995-07-06 1997-01-08 DeTeMobil Deutsche Telekom MobilNet GmbH Antenna device for mobile communication terminals
US5949369A (en) * 1996-12-30 1999-09-07 At & T Corp, Portable satellite phone having directional antenna for direct link to satellite

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8947305B2 (en) 2009-07-17 2015-02-03 Apple Inc. Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control
US9179299B2 (en) 2010-04-13 2015-11-03 Apple Inc. Adjustable wireless circuitry with antenna-based proximity detector
US9379445B2 (en) 2014-02-14 2016-06-28 Apple Inc. Electronic device with satellite navigation system slot antennas
US9398456B2 (en) 2014-03-07 2016-07-19 Apple Inc. Electronic device with accessory-based transmit power control
US9559425B2 (en) 2014-03-20 2017-01-31 Apple Inc. Electronic device with slot antenna and proximity sensor
US9583838B2 (en) 2014-03-20 2017-02-28 Apple Inc. Electronic device with indirectly fed slot antennas
US9444425B2 (en) 2014-06-20 2016-09-13 Apple Inc. Electronic device with adjustable wireless circuitry

Also Published As

Publication number Publication date
WO2002005443A2 (en) 2002-01-17
AU2001272021A1 (en) 2002-01-21

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