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7610027 |
Method and apparatus to maintain specification absorption rate at a wireless node
A system and method for medium access control (MAC) protocol which controls transmissions in wireless devices to at least substantially comply with specific absorption rate (SAR) limits. The system...
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7583930 |
Transmission device, electric field communication transceiver, and electric field communication system
There is provided a transmission means ( 3 ) configured to transmit a modulated signal obtained by modulating data, a transmission electrode ( 8 ) that induces an electric field based on the...
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7515879 |
Radio frequency circuit module
An RF circuit module, in which a power amplifier and a transceiver are united, with reduced interference between its electronic circuit blocks, downsized and still having high performance, and with...
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7511513 |
System and method for detecting the proximity of a body
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...
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7512386 |
Method and apparatus providing integrated load matching using adaptive power amplifier compensation
An RF power amplifier module can be used without a matching device between the power amplifier module and an antenna. The power amplifier module is constructed and operated to detect, protect and...
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7485885 |
Electromagnetic radiation transformation for powered devices
Electromagnetic radiation transformation for powered devices is described. In embodiment(s), a wireless phone (e.g., a cellular phone) includes one or more sources that emit electromagnetic...
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7482925 |
Apparatus and method to electromagnetically shield portable consumer devices
An apparatus and method is provided to shield contactless portable electronic consumer devices such as radio frequency identification devices (RFID), tokens, mini-cards, key fobs, cellular phones,...
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7480494 |
Antenna failure detecting device
An antenna failure detecting device that can avoid erroneous detection and use a reference voltage of relatively low precision is includes a switch that can short-circuit both the ends of a...
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7454239 |
Handheld wireless communication device and holder
A holder for a handless wireless communication device has triggering means at more than one location interacting with detecting means in the handheld wireless communication device for the handheld...
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7440773 |
Method for protecting user data in a personal digital assistant (PDA) telephone
Provided is a method for protecting user data in a PDA telephone having functions of a PDA and a telephone. The method includes checking a voltage of the PDA telephone through a first low voltage...
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7421258 |
Compact temperature transmitter with improved lead connections
A compact industrial process transmitter is provided having an electronics module that includes a top surface with a plurality of lead attachment points thereon. At least one of the lead attachment...
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7412214 |
Radio input device
A radio input device includes a holding part to be held by an operator; an operation part to be operated by the operator; a transmission part transmitting radio waves from an antenna according to...
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7330705 |
Method and apparatus for controlling specific absorption rate in a mobile communication terminal
A method and apparatus for controlling a SAR (Specific Absorption Rate) in a mobile communication terminal. The SAR is controlled by adjusting a transmission power of a mobile communication...
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7248844 |
Radio frequency integrated circuit electo-static discharge circuit
The radio frequency integrated circuit (RFIC) electrostatic discharge (ESD) circuit includes an integrated circuit pin and a radio frequency (RF) ESD circuit. The integrated circuit pin provides...
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7225003 |
Mobile terminal including first and second housings and an antenna
A mobile phone includes a lower housing having one and and the other end, an upper housing having one end pivotally connected to the lower housing, and an antenna accommodated close to one end of...
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7200141 |
Bandwidth detection in a heterogeneous network with parallel and proxy modes
Effective bandwidth of a communication link is determined in a heterogeneous, packet switched network between a source and a destination, where effective bandwidth is defined as the actual...
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7171248 |
Electromagnetic shielding system
An electromagnetic shielding system for shielding a user's head from electromagnetic waves produced from an antenna of a cellular phone. The electromagnetic shielding system includes an expandable...
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7154656 |
Radiation absorption in electro-optical devices
Electro-optical apparatus includes a housing having at least one electrical subassembly (ESA) and at least one optical subassembly (OSA) therein as well as cavities within the housing and paths for...
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7151914 |
Transmitter system for wireless communication with implanted devices
A transmitter system for wireless communication with implanted medical devices includes a transmitter circuit having a resonant network the resonant frequency of which is adjusted by a feedback...
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7120398 |
Mobile communication devices having high frequency noise reduction and methods of making such devices
In accordance with the disclosed embodiment of the present invention, there is provided a technique to control and manage where the currents flow produced by noise producing components such as...
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7099632 |
Wireless phone having improved SAR
A wireless phone having an improved SAR includes: a lower plate having a main board; an upper plate having an LCD panel; a hinge provided to open and close the lower plate and the upper plate, the...
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7088967 |
Data-compensating power measurement
A method and a device for compensating a data-dependency of a power measurement caused by linear modulation is described. The method comprises performing a first measurement ( 160 ) of a...
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7072623 |
Radio terminal device
An enclosure part in the vicinity of a receiver part or an enclosure part to which a user brings its head close during a call is formed out of a nonconductive material of resin or the like, and an...
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7055380 |
Transmitter for tire condition monitoring apparatus
A transmitter is located in a tire of a vehicle and transmits data indicating a tire condition using a carrier wave. The transmitter has an oscillator circuit and a transmission controller. The...
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6999739 |
Stacked FET receiver method and apparatus
A receiver method and apparatus is presented. Signals are received from a high-voltage environment to a low-voltage environment using low-voltage devices, such as low-voltage FETs. A reference...
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6999736 |
Transmitting apparatus
A DC voltage input through an input terminal is applied through an inductor, to a power supply circuit unit and an input voltage detecting circuit. The input voltage detecting circuit detects the...
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6967280 |
Frame system for an information handling apparatus
A frame system for an information handling apparatus is disclosed. In the system, a first frame and an electronic subsystem cooperate to form at least a partial Faraday cage about an electronic...
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6944436 |
Direct conversion transceiver capable of reducing DC offset using multichip module
A direct conversion transceiver capable of reducing a DC offset, using a multi-chip module is provided. In the transceiver, a mixer and an element constituting a local oscillator are positioned...
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6940010 |
Electromagnetic interference shield and method of making the same
An EMI shield for blocking and dissipating electromagnetic interference. The EMI shield includes a primary conductive member having a plurality of catches extending into a plurality of receptacles...
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6882832 |
Frequency verification of an amplitude modulated signal
An apparatus and method are disclosed for verifying the frequency of an AM carrier signal having a target frequency. The apparatus includes a high frequency clock that produces a clock signal...
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6785519 |
Portable telephone
The portable telephone capable of more effectively reducing the electromagnetic energy to be radiated therefrom and absorbed by the human body during its use is provided. The portable telephone is...
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6782243 |
Printed circuit board including EMI reducing circuits, an information processing apparatus having the board and a method to select the circuits
A printed circuit board (PCB) has a plurality of electromagnetic interference (EMI) reducing circuits, which reduce electromagnetic waves emitted from the PCB, and a plurality of switching devices,...
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6754510 |
MEMS-based bypass system for use with a HTS RF receiver
A HTS-based RF receiver includes a cryocooler and a cryogenic enclosure in thermal communication with the cryocooler. The cryogenic enclosure contains a HTS filter and a LNA therein. A first MEMS...
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6735450 |
Method and apparatus for wireless outdoor environment communications networks
An access point that is operable under outdoor or industrial environmental conditions may be provided. The access point may include a casing in which an indoor environment access point may be...
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6718164 |
Dynamic method and apparatus for controlling device temperature during continuous transmissions
A communication device ( 100, 200 ) capable of transmitting information provides the means for regulating the temperature ( 116 ) of one or more heat-sensitive modules or components ( 160 ) of the...
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6711387 |
Radiation-shielding mobile phone case device
A radiation-shielding mobile phone case device for reducing the effects of radiation emitting by the hand-held communication devices. The radiation-shielding mobile phone case device includes a...
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6708047 |
Device for reducing radiation from an antenna of a portable telephone
A device for reducing radiation from an antenna of a portable telephone, includes a main body having an outer body with a central bore, and an antenna gripping member mounted in the bore and having...
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6654592 |
Method and arrangement for adjusting output power of a transmitter power supply
The invention relates to a method and an arrangement implementing the method for adjusting output power of a transmitter power supply, in which method the output power of the power supply is...
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6622028 |
Receiver front-end having a high-temperature superconducting filter and a bypass path
An RF system includes a cryostat having a chamber and a cold region in the chamber, a high-temperature superconducting filter disposed in the cold area, a low-noise amplifier disposed in the...
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6576832 |
Electronic device molded cover having a releasable EMI shield
An electronic device molded cover is disclosed with a releasable EMI shield to facilitate removal to separate the EMI shield and the cover into respective individual parts for reuse as raw material...
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6571110 |
Cryoelectronic receiver front end for mobile radio systems
The present invention relates to a novel use of cryoelectronic equipment to implement an extremely sensitive and stable receiver front end for UHF, microwave, and millimeter wave applications. The...
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6556811 |
Transceiver unit
An air cooled transceiver enclosure which includes multiple cooling posts about the enclosure. The transmitter and receiver antennas are planar mounted above the cooling posts and the cooling posts...
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6553213 |
Transmitter output power detecting circuit
An output power detecting circuit of transmitter, comprises a signal detecting unit connected between the transmitter output end and the transmitter control unit to detect an output signal of...
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6539207 |
Component for a wireless communications equipment card
A grounded, shielded holder for a radio frequency communications card installed in a terminal used in a wireless network includes a built-in antenna for transmitting and receiving radio frequency...
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6515223 |
Cellular shield
A shielding device to protect cellular or cordless telephone users from EMF including the RF microwave radiation comprises a flat internal flexible conductive sheath which is positioned on the top...
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6505036 |
Apparatus and method for reducing effect of mobile telephone radiation
A compact mobile telephone apparatus comprising a two part fold-over mobile phone wherein one part, the lower part, is a hand set containing a keyboard, microphone, and earphone, and the other...
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6469245 |
Electromagnetic wave attenuator for mobile communication terminal
An electromagnetic wave attenuator for a mobile communication terminal is provided. The electromagnetic wave attenuator for a mobile communication terminal includes a corrugate structure conductor...
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6448490 |
Assembly for attenuating emissions from electronic sources
An assembly for shielding EMF/RF radiation emitted from portable telephones including a case having a shielding material capable of attenuating EMF/RF radiation. The case substantially encloses a...
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6442379 |
Radio apparatus and method having a d.c. component signal superposed on a transmission-signal
In a radio apparatus including a transmitter unit and an antenna unit, a detector is located in the vicinity of an antenna in the antenna unit rather than in the transmitter unit. The detector...
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6430402 |
Power amplifier saturation prevention method, apparatus, and communication system incorporating the same
An apparatus for controlling the power level of an output signal from the output of an electronic amplifier. The electronic amplifier has a control signal input for receiving an amplifier control...
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