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7620394 |
Reusing frequencies of a fixed and/or mobile communications system
A communications system includes a first wireless communications system configured to provide wireless communications over a first frequency band, and a second wireless communications system...
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7620382 |
Frequency converter capable of preventing level of intermediate frequency signal from lowering due to rise in temperature
There is provided a bias power supply for setting a collector bias current of a mixer transistor and a collector bias current of an oscillation transistor. When a control voltage is equal to or...
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7586995 |
Peak windowing for crest factor reduction
In order to reduce the crest factor of a signal for power amplification, a windowing function is applied. The windowing function that is applied is a triangular windowing function. The use of this...
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7574177 |
Remote controller and FM reception arrangement
A modular communication system that includes a battery operated portable multimedia player is used to remotely control a accessory unit arranged to provide an output audio stream to an audio output...
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7567680 |
Dual-diaphragm speaker assemblies with acoustic passageways and mobile terminals including the same
A mobile terminal includes a portable terminal housing and a speaker housing positioned in the portable terminal housing. The speaker housing includes a first micro-speaker having a first frequency...
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7537171 |
Thermostat control system providing power saving transmissions
A thermostat control system having remote devices and/or other internally powered devices provides transmissions at different power levels and at different data transfer rates to conserve power...
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7522878 |
Adaptive inductive power supply with communication
An adaptive inductive ballast is provided with the capability to communicate with a remote device powered by the ballast. To improve the operation of the ballast, the ballast changes its operating...
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7512422 |
RF generator with commutation inductor
A radio frequency (RF) generator comprises a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an RF output node...
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7493131 |
Velocity responsive power control
The velocity of a wireless communications device (WCD) ( 106 ) is estimated. In response to this estimate a power control command rate is determined. The WCD 106 transmits power control signals...
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7480487 |
Power regulation for field instruments
Effective power regulation may be achieved for a field instrument that derives power from a communication signal. In particular aspects, a system and process for power regulation include the...
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7373164 |
Apparatus and methods for wireless communication transmission power control that supports physical channel reconfiguration
Apparatus and methods for wireless communication transmission power control are provided. Determination of gain factors and adjustments for physical channel reconfiguration in the context of...
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7369882 |
Sliding/swing-type portable apparatus having self-retaining function
A sliding/swing-type portable apparatus having a self-retaining function includes a main body; a battery cover coupled to the bottom surface of the main body in a predetermined position so that it...
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7359713 |
Battery consumption optimization for mobile users
Systems and methods are disclosed to provide power management for a mobile communication device having a location determination function. The frequency of the location determination function may be...
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7340270 |
Method for RF output power control of a wireless communication device
The present invention discloses a method for RF output power control of a wireless communication device by switching the wireless communication device between different modes according to a state...
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7336978 |
Mobile device having an overcurrent cutoff function
A mobile device having an overcurrent cutoff function. In a mobile device having at least one function module, the mobile device includes a main power supply which supplies power to the mobile...
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7333821 |
Methods and apparatus for terminating use of quick paging channel based on high capacity power source usage
In one illustrative example, a mobile communication device has a wireless transceiver; an antenna coupled to the wireless transceiver; one or more processors coupled to the wireless transceiver;...
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7321632 |
Method and apparatus for multi-algorithm detection
Embodiments of the present invention provide a method, apparatus and system for detecting a transmitted signal according to a detection algorithm selected from two or more detection algorithms...
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7305041 |
Peak suppression of multi-carrier signal with different modulation
A technique for peak suppression, phase and amplitude equalizer of multi-carrier signals with different modulation is described. The input to the multi-carrier power amplifier is modified by a peak...
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7251485 |
Wireless LAN terminal device, portable data terminal system, mobile phone, wireless LAN communication method, method for providing service, and method for transferring incoming call
A portable wireless LAN terminal device attachable to an external connecting terminal installed in a portable external connection device, such as a portable data terminal device, includes a device...
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7221967 |
Enhanced gain selected cell phone booster system
Apparatus for boosting the signal between a cell phone ( 14 ) and a cell site ( 16 ), which includes an amplifier ( 64 ) that continually operates at a fixed gain. A power detector ( 72 ) controls...
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7206600 |
Method and apparatus of antenna detection and authentication
Briefly, a method and apparatus for decoding and authenticating an antenna is disclosed. The method may include detecting attachment of an antenna to a transmitter by authenticating a cipher...
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7197325 |
Power control apparatus with PAM reference voltage tuner for a mobile terminal
A transmission power control apparatus of a mobile terminal includes an intermediate frequency automatic gain controller for receiving a transmission intermediate frequency signal and performing an...
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7099699 |
Method for preventing illegal use of mobile communication terminal
A method for preventing an illegal use of a mobile communication terminal includes the steps of: transmitting a short message service (SMS) message to a lost terminal when a user requests a...
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7084574 |
Fluorescent light power source for supplying power to an external device
Systems and methods are provided for deriving power for an external device from the power source of a fluorescent light. The power source includes a fluorescent ballast electrically connected to...
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7050829 |
Method and apparatus for sending battery capacity level between radio communication devices
A portable telephone that includes a control unit, a memory unit, a wireless communication function unit, an imaging unit, a display unit, an operation unit, a voice input unit, a voice output...
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7047005 |
Method and mobile station for enabling a preferred slot cycle
In accordance with the preferred embodiments of the present invention, a method ( 400 ) and a mobile station ( 160 ) for enabling a preferred slot cycle are described herein. The mobile station (...
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7024231 |
Booster system in a cellular phone base station
A booster system in a cellular phone base station comprises a plurality of power amplifiers, each of which configured to receive a signal provided by a corresponding transceiver unit that is...
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7020500 |
Mobile communication system powered by multiple batteries
A mobile communication system powered by multiple batteries comprises a mobile telephone that can functionally connect via a power cable to a special supplemental battery or at least one existing...
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7013161 |
Peak power reduction using windowing and filtering
Large signal peaks (for example, peaks 105 and 110 ) can dramatically increase the cost of a communications device by requiring high grade power amplifiers. Peak reduction can reduce the large...
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6999800 |
Method for power management of a smart phone
A method for power management of a smart phone. The method comprises steps of resetting the smart phone, searching for network service, operating the mobile phone system in standby mode and a PDA...
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6985757 |
Smart host power supply detection for PC card wireless modem
Methods of and apparatuses for characterizing the power supplying capabilities of host power supplies providing power to wireless modems. According to an exemplary method, an equivalent series...
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6985751 |
Combined open and closed loop power control with differential measurement
A power control system and method for a wireless telephone employs an open loop technique for relatively low power levels and a closed loop technique at higher power levels. In the open loop...
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6973334 |
Cellular telephone
A cellular telephone includes a receiver connected to an antenna through a duplexer. The receiver converts a first communication signal into a voice signal code, and outputs a signal indicating an...
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6970725 |
Radio communication device comprising a power extraction unit
The invention relates to a radio device and method for transmitting radio signals including an electrical interface having at least one data terminal for connecting the radio device to an external...
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6968218 |
Method and apparatus for electrically coupling digital devices
Apparatus for electrically coupling a first digital device ( 408 ) and a second digital device ( 406 ) includes an interface circuit at the first digital device coupled at an interface node ( 230 )...
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6959209 |
Switchable omni-directional antennas for wireless device
Disclosed is an electronic device having wireless communication functions via a pair of antennas. The device can function under two operating states, both with an omni-directional radiation pattern...
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6928310 |
Apparatus for supplying power to mobile phone using earphone-microphone connector
An apparatus for supplying power to a mobile phone by utilizing an external power source when a battery of the mobile phone has been exhausted. In a mobile phone having an earphone-microphone...
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6925310 |
Power calculation method of a radio communication system and an apparatus therefor
A conventional link budget technique has not been fully applicable to a link design of a downlink in CDMA systems, which is now available by using both a power level of a radio channel in question...
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6920341 |
Secondary battery control circuit
A secondary-battery control circuit is provided. The secondary-battery control circuit includes a first path supplying a first load current from one or more secondary batteries connected in series...
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6920312 |
RF generating system with fast loop control
An RF generating system operates with high efficiency to supply RF output power to a plasma load. The RF generating system is capable of modulating the RF output power at frequencies up to the...
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6892080 |
Booster amplifier for cellular telephone cradles
A booster amplifier that can be coupled to virtually any cellular telephone handset is provided for use with virtually any cellular communications network. The power output of the booster amplifier...
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6826418 |
Radio circuit and control method of radio circuit
The invention provides a radio circuit realizing a desired receiving characteristic even when a strong-level interfering wave is received and operating with small power when no interfering wave is...
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6791528 |
Backlight system architecture for mobile display system
The present invention provides a mobile display system with an improved backlight system. In one embodiment of the invention, the mobile display system comprises a mobile unit including a flat...
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6731950 |
Cellular-based telephone connection system
An interface box links a user's cellular telephone with all the standard telephone extensions at the user's home or office. In this way, the portable cellular telephone is the interface between the...
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6711388 |
Distributed power level control system of transmitter for cellular communication
A transmitter circuit and method for transmitting a data signal at a desired transmitter power level. The transmitter circuit includes an attenuator for attenuating the data signal by an...
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6711409 |
Node belonging to multiple clusters in an ad hoc wireless network
A communication system has stations arranged in clusters of member stations, each of which communicates with the other member stations. One member station is a head station of the cluster that...
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6697648 |
Radio communication booster for portable radio transceivers
A radio apparatus ( 1 ), in particular for mobile radio, of a first predetermined power stage is proposed, whose broadcasting power can be increased by connecting a HF amplifier circuit. The radio...
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6697617 |
Notification of a low-battery and maintaining communication in a wireless network
A system and method for notifying a remote device of a low battery capacity condition in a wireless communications system is disclosed. A detector monitors the capacity of the battery in a wireless...
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6690915 |
Booster, monitoring apparatus, booster system, control method and monitoring method
A booster is provided which controls its gain to reduce the adverse effect of the booster noise on a base station. It receives a perch signal transmitted from a base station; measures received...
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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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