Abstract: A system and method for sensing the proximity of an electronic device, in particular, a radio frequency mobile communication device such as a mobile telephone, wireless modem equipped portable computer, or the like to a body employs an antenna capable of altering its impedance for changing the amount of radio frequency electromagnetic energy reflected by the antenna when the antenna is in proximity to the body. The radio frequency electromagnetic energy reflected by the antenna is measured and used for determining proximity of the antenna to the body.

Abstract: A telecommunication device has a permanently mounted antenna tuned to a predetermined resonant frequency and a housing formed of a plurality of parts one of which is removable. The one removable part, which may be an original element or an aftermarket add-on, changes the resonant frequency of the antenna when fitted to the housing. An electrically conductive passive correction element fixed in the one removable housing part is positioned therein and dimensioned such that when the one removable housing part is fitted to the housing the passive correction element cancels out the effect on the resonant frequency of the antenna by the one removable housing part.

Abstract: A holder for a mobile communication device comprises a receptacle for optimally reducing the SAR value of a mobile communication device secured within the receptacle. At least one material portion, a patch, causing electromagnetic losses may be placed within the receptacle to optimally reduce exposure to low level radio frequency energy to an individual carrying a mobile telephone secured within the receptacle. The patch formed of electromagnetic field reducing material may be placed in one or more particular areas of the receptacle to attenuate one or more corresponding regions of the mobile telephone in which the SAR value is substantially at a local maximum. This may allow a reduction of the SAR value of a mobile telephone while limiting the performance loss associated with the reduction of the SAR value of the mobile telephone when the mobile telephone is secured within the receptacle.

Abstract: A telecommunication device has a permanently mounted antenna tuned to a predetermined resonant frequency and a housing formed of a plurality of parts one of which is removable. The one removable part, which may be an original element or an aftermarket add-on, changes the resonant frequency of the antenna when fitted to the housing. An electrically conductive passive correction element fixed in the one removable housing part is positioned therein and dimensioned such that when the one removable housing part is fitted to the housing the passive correction element cancels out the effect on the resonant frequency of the antenna by the one removable housing part.

Abstract: This document represents and describes an antenna for a wireless communication terminal with at least one essentially planar radiating element, wherein at least one section of the radiating element is folded in a waving to meandering fashion. According to the invention, the folded section of the radiating element is three-dimensionally double-folded by folding lengthwise in at least two directions arranged at an angle (W) in relation to each other (R1; R2). Such a three-dimensional antenna structure creates an antenna which, while maintaining the external dimensions of a typical planar radiating element, has a significantly lower space requirement. The antenna according to the invention is therefore especially suitable for installation in highly miniaturized devices such as mobile phones.

Abstract: A system and method for reducing the Specific Absorption Rate (SAR) of a mobile communication device employs a sensor assembly for sensing when the mobile communication device is in proximity to a body such as a human body, animal body, or the like. The average power of the radio frequency electromagnetic energy radiated by the mobile communication device may then be reduced only when necessary so that the SAR value for the device is maintained below a predetermined acceptable level.

Abstract: A system and method for sensing the proximity of an electronic device, in particular, a radio frequency mobile communication device such as a mobile telephone, wireless modem equipped portable computer, or the like to a body employs an antenna capable of altering its impedance for changing the amount of radio frequency electromagnetic energy reflected by the antenna when the antenna is in proximity to the body. The radio frequency electromagnetic energy reflected by the antenna is measured and used for determining proximity of the antenna to the body.

Abstract: A system and method for sensing the proximity of an electronic device, in particular, a radio frequency mobile communication device such as a mobile telephone, wireless modem equipped portable computer, or the like to a body employs an antenna capable of altering its impedance for changing the amount of radio frequency electromagnetic energy reflected by the antenna when the antenna is in proximity to the body. The radio frequency electromagnetic energy reflected by the antenna is measured and used for determining proximity of the antenna to the body.

Abstract: A communications terminal is provided which includes an antenna element, which has a specific antenna volume, and an acoustic output device, wherein the antenna element and the acoustic output device are designed and/or arranged with respect to each other such that at least part of the antenna volume forms at least part of a resonant cavity for the acoustic output device.

Abstract: A small-scale communication and/or data processing apparatus with an indicating device, integrated in the apparatus, which has an image projector.

Abstract: An antenna which can be operated in a number of frequency bands and has at least one part which encloses an area and at least one part which does not enclose an area, with the at least two parts including a single conductor part being connected in series with one another, and the at least two parts interacting with one another in such a manner that the antenna has at least two resonant frequencies in a definable position, and with each at the same time having a wide bandwidth.

Abstract: A mono-band planar inverted F antenna (PIFA) structure comprises a planar radiating element having a first area, and a ground plane having a second area that is substantially parallel to the radiating element first area. An electrically conductive first line is coupled to the radiating element at a first contact located at an edge on a side of the radiating element. The first line is also coupled to the ground plane. An electrically conductive second line is coupled to the radiating element at second and third contacts located along the same side as the first line, but at different locations on the edge than the first contact. Useable bandwidth of the PIFA is increased by using multiple contact locations to couple the conductive second line to the radiating element. The first and second lines are adapted to couple to a desired impedance, e.g., 50 ohms, at frequencies of operation of the PIFA.

Abstract: A mono-band or multi-band planar inverted F antenna (PIFA) structure comprises a planar radiating element having a first area, and a ground plane having a second area that is substantially parallel to the radiating element first area. The second area further comprises a section having a meandering form elongating the effective overall length of the radiating element.

Abstract: A multi-band antenna for use in a mobile radio telephone. The antenna includes first and second meandering conductor structures and a contact spring connecting the conductor structures to a transmitter/receiver. The meandering conductor structures and contact spring are formed as a single-piece punched and bent part, without overlapping of the components.

Abstract: A holder for a mobile communication device comprises a receptacle for optimally reducing the SAR value of a mobile communication device secured within the receptacle. At least one material portion, a patch, causing electromagnetic losses may be placed within the receptacle to optimally reduce exposure to low level radio frequency energy to an individual carrying a mobile telephone secured within the receptacle. The patch formed of electromagnetic field reducing material may be placed in one or more particular areas of the receptacle to attenuate one or more corresponding regions of the mobile telephone in which the SAR value is substantially at a local maximum. This may allow a reduction of the SAR value of a mobile telephone while limiting the performance loss associated with the reduction of the SAR value of the mobile telephone when the mobile telephone is secured within the receptacle.

Abstract: According to a specific embodiment, a support structure for a mobile phone is disclosed having a first section extending substantially vertically having a section for receiving and supporting the mobile phone. The first section has a coupler for electrical connection with the mobile phone. The support structure also has a second section coupled with the first section extending substantially horizontally having a distal end section including an antenna being electrically coupled with the coupler in the first section. The antenna is coupled with the coupler using a cable, which in some preferred embodiments is within a coupling section between the first and second sections.

Abstract: A mobile communication device employs electrical stimulation for silently alerting the user that information has been received by the mobile communication device. The mobile communication device includes an electrical power source for generating an electrical signal and an electrode assembly coupled to the electrical power source for communicating the electrical signal to the body of a user of the mobile communication device. The electrical signal provides an electrical stimulation to the body of the user when communicated to the body by the electrode assembly for silently alerting the user that information has been received by the communication device.

Abstract: An antenna means for a portable radio communication device, in particular a hand-portable mobile telephone, having at least one radiating element that has a meandering and cylindrical configuration. This structure is specifically advantageous in combination with an extendable and retractable whip antenna and, when having two or more meandering radiating elements, in multi-band radiating structures. The antenna device is suitable for manufacturing in large quantities, for example by a flexible printed circuit board technique.

Abstract: A communications terminal is provided which includes an antenna element, which has a specific antenna volume, and an acoustic output device, wherein the antenna element and the acoustic output device are designed and/or arranged with respect to each other such that at least part of the antenna volume forms at least part of a resonant cavity for the acoustic output device.

Abstract: A mono-band or multi-band planar inverted F antenna (PIFA) structure comprises a planar radiating element having a first area, and a ground plane having a second area that is substantially parallel to the radiating element first area. The second area further comprises a section having a meandering form elongating the effective overall length of the radiating element.