Abstract: Low power email capabilities are provided for an electronic device, such as a hand-held portable computer having capability to operate an application during a low power mode. During the low power mode, portions of hardware, software, services, and/or other components of the portable computer that are not necessary for email-related operations, such as polling a server for new email, are suspended or otherwise deactivated. At least a portion of a new email is stored in a memory of a low power display module (LPDM) of the portable computer. The LPDM is provided with its own low-power processing unit, user interface, and other components to allow access to and manipulation of the stored email while other components of the portable computer remain deactivated.

Abstract: A system and method of displaying data pertaining to an accessory on a mobile device is disclosed. The accessory and the mobile device are communicable with one another using the Bluetooth™ protocol. A set of pre-defined Bluetooth queries using an extended list of AT commands that can be used by the Bluetooth protocol are designed to perform functions that request data pertaining to the accessory. A Bluetooth connection is established between the accessory and the mobile device. A Bluetooth query is selected by a user of the mobile device and sent to the accessory. The accessory receives and executes the Bluetooth query from the mobile device to obtain the requested data pertaining to the accessory. The requested data is sent back to the mobile device where it is displayed on the mobile device display.

Abstract: A method, system, and apparatus of a DC current based on chip RF power detection scheme for a power amplifier are disclosed. In one embodiment, a method includes generating a scaled current from an other current associated with power amplifier, transforming the scaled current (e.g., the scaled current may be scaled to the other current value) into a digital signal and using the digital signal to set a radio frequency power value of an antenna of the antenna module. The method may include transforming the scaled current into a voltage signal. The method may also include transforming the voltage signal into the digital signal. The method may also include generating a current mirror from a low dropout regulator.

Abstract: Provided are a transceiver and a transceiving method for use in an ultra wide band system for frequency sharing. The transceiver for use in an ultra wide band system for reducing interference that can be generated by an external system includes an external signal detector which detects an external signal generated from the external system, and a transmission signal controller which determines a power level of a transmission signal to be transmitted by the transceiver based on a power level of the detected external signal, in the case where an external signal using the same frequency channel as the ultra band system is detected, wherein the ultra wide band system and the external system are in a frequency sharing environment.

Abstract: In a portable radio transceiver, a power amplifier system includes a load line switch that operates in response to a mode control signal to promote high efficiency in both a high-power mode and a low-power mode. The switching circuit is operable to couple the inductance to the shunt capacitance in response to a control signal indicating operation in a low-power mode. The switching circuit is further operable to decouple the inductance from the shunt capacitance in response to a control signal indicating operation in a high-power mode. In the low-power mode, the inductance couples with the shunt capacitance to decrease total capacitance at the output of the power amplifier. In the high-power mode, the total capacitance at the output of the power amplifier is substantially equal to the shunt capacitance alone, and the inductance essentially has no effect on total capacitance at the power amplifier output.

Abstract: A wearable data processing system includes a high power radio module and a low power radio module. The high power radio module may retrieve data from radio frequency identifier (RFID) tags. The low power radio module may transmit data to a base station data pertaining to the detected RFID tags. The low power radio module may also receive a power management signal from a gate radio. The gate radio may have an adjustable range. A power management engine in the wearable data processing system may determine whether the low power radio module is receiving the power management signal from the gate radio. The power management engine may also activate and deactivate the high power radio module, depending on whether the low power radio module is receiving the power management signal from the gate radio. Other embodiments are described and claimed.

Abstract: A method and system are provided for boosting power for a communications link between a base station and a user device, or user equipment, in a cellular communications network. In one embodiment, the communications link is a downlink between the base station and the user device established via a downlink channel having a full channel bandwidth including a number of sub-carrier frequencies. The base station determines whether a power boost is needed for a downlink to the user device. If so, the base station uses a subset of the sub-carrier frequencies from the full channel bandwidth as a reduced bandwidth channel, or sub-channel, for the downlink to the user device such that signal power is concentrated on the sub-carrier frequencies of the reduced channel bandwidth rather than spread across the sub-carrier frequencies of the full channel bandwidth. As a result, a power boost for the downlink is provided.

Abstract: A method for communication includes modulating data in a wireless communication terminal to produce an aggregated-spectrum signal, which includes at least first and second signals in respective first and second spectral bands. The modulated data is transmitted in the first and second signals at respective first and second power levels. The second power level is adjusted separately from the first power level. In some embodiments, one or more instructions to set the first power level are received at the wireless communication terminal, and the first power level is set separately from setting the second power level based on the instructions.

Abstract: A mobile terminal which includes a voltage comparing unit that compares a battery voltage to a reference voltage, and a controller that controls a booting operation of the mobile terminal according to the comparison.

Abstract: A portable phone including a connecting member such as a hinge part for coupling a display housing and a grip housing in a manner that a first state in which the display housing and the grip housing are folded together, and a second state in which the display housing and the grip housing are coupled at one end, are exchangeable. The display housing includes a display unit, a fuel cell, and a fuel cartridge, and the grip housing includes an operation part and a rechargeable part for storing electricity generated by the fuel cell, the fuel cartridge is detachably mounted on the side face of the display housing.

Abstract: A method of operating a network node that controls a component of a wireless communications network is described. The network component has a receiver with at least one receiver structure that can assume two or more states, including a first state corresponding to an enhanced receiver performance and a second state corresponding to a reduced receiver performance and a reduced power consumption. The method comprises determining a network condition and, in dependence of the network condition, generating a performance control signal that aims at controlling the state of the receiver structure, and transmitting the performance control signal to the network component. The invention is further directed the performance control signal generated by the network node and the network component which the network node intends to control.

Abstract: 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 configured to provide wireless communications using at least a portion of the first frequency band. The system includes an inter-system communications link between the first wireless communications system and the second wireless communications system. The inters-system communications link is used to coordinate the use of the first frequency band. The system further includes an interference reducer configured to reduce interference between the first wireless communications system and the second wireless communications system. Related methods are also disclosed.

Abstract: 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 smaller than a first predetermined value, an output voltage of the bias power supply is set to be increased so that at least one of the collector bias current of the mixer transistor and the collector bias current of the oscillation transistor can be increased.

Abstract: A transmission speed enhancing apparatus of a mobile phone is disclosed. The apparatus comprises a processor having a secure digital input/output (SDIO) interface and a GPIO interface, a WiFi module and a secure digital memory A SDIO switcher is configured for disconnecting the SDIO interface with the secure digital memory when receiving a switching command from the general purpose input/output interface of the processor, and connecting the SDIO interface with the WiFi module so as to enhance the transmission speed of the mobile phone. A method for enhancing transmission speed of a mobile phone is also disclosed.

Abstract: 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 function produces good results when those results are measured in terms of their effect on a transmitted signal in a WCDMA communications system. The filter for performing the triangular windowing function receives the signal, and applies it to a first delay element. The output from the first delay element is applied to a second delay element. An adder forms a weighted sum of the received signal and the signals at the outputs of the first delay element and the second delay element. A first accumulator is connected to receive an input from the adder and provides a first accumulator output, while a second accumulator is connected to receive an input from the first accumulator output and provides a second accumulator output.

Abstract: 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 device. At a user's discretion, the multimedia player can also be used to provide the original audio source material that is, in turn, processed by the accessory unit for output to the audio output device or an accessory unit can be used to provide the audio source material from, for example, a radio tuner incorporated therein.

Abstract: A power amplifying apparatus has a bandwidth limitation process circuit to which an envelope signal included in a transmission signal is inputted, and which performs a bandwidth limitation process on the envelope signal, a variable power supply circuit for generating a power amplifier supply voltage based on a voltage control signal generated by the bandwidth limitation process circuit, and a power amplifier which is fed an input signal, and which is driven in accordance with the supply voltage from the variable power supply circuit.

Abstract: When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover.

Abstract: 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 life. Thermostat control system components and devices may be powered by replaceable power supplies that are conserved by transmitting at a lower power level more often than at a higher power level. A higher power level transmission is provided at a lower data transfer rate, and a lower power level transmission is provided at a higher data transfer rate. A higher power transmission is provided periodically to ensure reliable communication of temperature information.

Abstract: 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 characteristics based upon information received from the remote device. Further, the ballast may provide a path for the remote device to communicate with device other than the adaptive inductive ballast.

Abstract: 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 coupling output nodes of the first and second half bridges, the output node outputting RF signals to a load; positive and negative rails coupled to a power source; and a first commutation inductor provided to store energy to commutate at least one of the half bridges.

Abstract: 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 to a base station (102) according to the power control command rate. The power control command rate may be determined by mapping the estimated velocity to a velocity range, and selecting a rate that corresponds to the velocity range as the power control command rate. Velocity is estimated by measuring a level crossing rate of a multipath signal.

Abstract: An efficient way to store backoff and crestcomp parameters while providing quick access to the backoff and crestcomp parameters associated with specific transmission configurations is described herein. A long-term memory stores amplifier parameters for a plurality of different transmission configurations. A selection element selects from the long-term memory a graph of the amplifier parameters corresponding to a selected subset of the transmission configurations. The selected graph relates each of a plurality of enhanced data channel gain ratios to a corresponding amplifier parameter. The selection element transfers the selected graph from the long-term memory to a fast memory proximate a DSP. Further, the selection element reselects and transfers new graphs into the fast memory as needed.

Abstract: 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 ability to receive a communication signal and adjust the voltage supplied to a power converter based on the current of the communication signal. The system and method also include the ability to convert power of the communication signal with the power converter.

Abstract: A spread spectrum base station comprises an automatic gain control (AGC) circuit having an input configured to receive a received spread spectrum signal and gain control the received spread spectrum signal to produce a gain controlled signal. A correlation circuit has an input configured to receive the gain controlled signal and correlate the gain controlled signal with a code to produce a despread signal. A power measurement and comparator circuit is configured to receive the despread signal and a control level of the AGC circuit. The circuit processes at least the despread signal and the control level to produce a processed signal and compares the processed signal with a threshold to produce a comparison signal. The comparison signal is used to produce a power command. A multiplexer multiplexes the power command with a signal for transmission over an antenna.

Abstract: 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 transmission power control are addressed. Preferably, implementation is in conjunction with communication systems in which wireless communications are conducted between wireless transmit receive units (WTRUs) using multiple channels that are concurrently transmitted.

Abstract: 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 can rotate about a first hinge axis toward or away from the main body and provided with a folding force, at less than a first angle relative to the bottom surface of the main body, in such a direction that it is folded on the main body, an unfolding force at the first angle or more, and a retaining force at a second angle for retaining the main body in an upright position, at a slant; and a battery pack attached to and detached from the battery cover.

Abstract: 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 adjusted based on whether the mobile communication device is moving and may be further adjusted based on battery voltage or expected battery life.

Abstract: 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 parameter corresponding to a received beacon. These modes include a normal power mode for outputting a normal RF output power and a reduced-power mode for outputting a reduced RF output power. The reduced RF output power is less than the normal RF output power.

Abstract: 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 device, a power detection unit which detects whether power from the main power supply to the mobile device is cut off, and generates a power cutoff signal when the power is cut off, a backup power supply unit which supplies a backup power to the mobile device when the power from the main power supply to the mobile device is cut off, and a control unit which converts potential levels of the data lines and control signal lines between the control unit and the function module to a predetermined potential level in response to the power cutoff signal.

Abstract: 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; and a power source interface which is adapted to connect with a power source for supplying electrical power to the mobile device. The one or more processors are operative to monitor a quick paging channel of a wireless communication network with use of the wireless transceiver; identify whether a predetermined power source is connected to the power source interface; cause an indication to terminate use of the quick paging channel to be transmitted with the wireless transceiver to the wireless network based on identifying that the predetermined power source is connected to the power source interface; and refrain from monitoring the quick paging channel with the wireless transceiver after sending the indication to the wireless network.

Abstract: 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 based on a predetermined selection criterion.

Abstract: 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 suppression, phase and amplitude equalizer circuit prior to being applied to the amplifier. The peak suppression is applied to a multi-carrier signal with different modulations and bandwidth. After peak suppression each individual carrier is phase and amplitude equalized to maintain the properties of the multi-carrier signal. The phase equalizer maintain the timing property of the carriers and the amplitude equalizer maintain the modulation accuracy of the individual carriers. The input to the peak-to-average reduction circuit could be a baseband, an intermediate frequency (IF) or radio frequency (RF) signal. The peak-to-average reduction is performed in digital domain.

Abstract: 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 body (2); means for transmitting and receiving (6-9) a signal through a wireless LAN circuit, the means for transmitting and receiving being installed the device body (2); means for supplying power (11) to each portion from means for accumulating power installed in the device body (2) or means for accumulating power attachable to the device body (2); a connecting terminal (13) installed in the device body (2) and attachable to the external connecting terminal; and first sound producing means (12, 15), which is installed in the device body, for producing sound based on the signal received by the means for transmitting and receiving (6-9).

Abstract: 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 an attenuator (62) that can be switched to pass the amplified signal through an attenuator (74) of moderate resistance, or through an attenuator (60) of zero resistance so the power output is boosted within the limits allowed under cell phone system standards.

Abstract: 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 received from the antenna. The method further includes suspending transmission if the antenna is not attached to the transmitter.

Abstract: 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 intermediate frequency automatic gain adjustment. A power amplifier for amplifying the transmission intermediate frequency signal. A mobile station modem (MSM) for outputting a transmission gain control signal to the intermediate frequency automatic gain controller, and a reference voltage control unit for receiving the transmission gain control signal and outputting a reference voltage to the power amplifier are also provided. Since the change of the reference voltage is always under control in the power mode switching, the burst noise occurrence due to the sudden reference voltage change in the transmission power can be restrained, and increased battery use time can be achieved by using a low reference voltage in the low power mode.

Abstract: 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 phone-locking service; and analyzing the received SMS message to set a phone-locking state for the lost terminal. When a terminal is lost, an SMS message containing a ciphered string is transmitted to the lost terminal to set a phone-locking or forcefully turn off an LCD power, so that the lost terminal can be prevented from illegally using by a third party or a stranger and user's personal information can be effectively prevented from leaking.

Abstract: 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 unit, a battery and a power supply unit. The control unit controls the battery capacity level of the portable telephone, and information regarding the battery capacity is attached to a transmission image and the composite information is transmitted to the call destination. An alarm image stored in the memory is automatically transmitted when a battery capacity decrease alarm occurs. Therefore, the call destination is always capable of knowing the battery capacity of the sending portable telephone and the present invention can prevent the unintentional line disconnection.

Abstract: 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 (160) monitors for transmission from a base station (140) via a communication resource (210) based on an operating slot cycle index (SCI) corresponding to an operating slot cycle. The mobile station (160) generally includes a receiving unit (320), a transmitting unit (330) and a controller (340). The receiving unit (320) receives control information associated with slot cycles operable by the base station (140). The controller (340) is operable to adjust the operating SCI to a preferred SCI in response to a trigger event. The preferred SCI corresponds to a preferred slot cycle.

Abstract: 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 coupled to said booster system. A hybrid combiner is coupled to the power amplifiers, and is configured to combine the signals generated by each of the power amplifiers. A VSWR sensor is configured to sense a voltage standing wave ratio at an output port of the booster system. Furthermore, a radio frequency relay is provided, which is configured to receive signals provided by the transceiver units. The radio frequency relay is triggered in response to an indication signal based on either a failure in the booster system or a failure in the signal path following the booster system.

Abstract: 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 battery functionally contained in a minimal housing. The special battery and the minimal housing have a compact body unconstrained by the mobile telephone compact body. They are optimized for comfortably to maximally fit, in a comfortable manner, in a pocket of the mobile telephone user to permit carrying the maximum power while still being portable in a hands-free manner using clothing including clothing accessories of the user. An adapter allows connection of either the supplemental battery or the minimal housing containing the at least one existing battery to mobile telephones of different makes and models. A charging adapter allows charging a rechargeable battery.

Abstract: 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 peaks at a cost of increasing spurious emissions. A circuit (for example, circuit 500) combining a scaling window peak reducing unit (for example, unit 507) and a filter (for example, filter 509) can effectively reduce the signal peaks without significantly increasing spurious emissions.

Abstract: 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 system in normal mode when connected to a network, switching the mobile phone system to connection mode when establishing communication with a remote terminal, switching the mobile phone system to sleep mode when the mobile phone system has been idle for a first time period, switching the PDA system to sleep mode when the PDA system has been idle for a second time period, and implementing power detection to switch the mobile phone and PDA system to off mode when the detected power is lower than a first and second threshold respectively.

Abstract: 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 technique, a wireless telephone (104, 106, 108) stores a phasing table of automatic power control (APC) values for the power levels (which are used to control upconverter gain levels measured at different channels. In operation, a power controller (322) reads the power level and reads the APC value in the table. Another table stores the APC value for one power level as the channel and temperature are varied. This value is interpolated, as needed, during operation. The APC value for the open loop approach is determined by reading the input channel; finding the closest higher and closest lower channels in the temperature-channel table; interpolating between APC values for the temperature column of the closest lower temperature, to get the actual value.

Abstract: 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 resistance of the power supply is determined and compared to a plurality of maximum equivalent series resistance values associated with a corresponding plurality of transmission power classes. Each power class is designated as a permissible power class at which the wireless modem may be configured to transmit, for each maximum equivalent series resistance value that is greater than the equivalent series resistance of the power supply.

Abstract: 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 intensity of the first communication signal. The cellular telephone also includes a transmitter connected to an encoder/decoder apparatus and to the antenna through the duplexer. The receiver converts the input voice code signal from the encoder/decoder apparatus into a second communication signal. A controller controls the amplitude of the transmitter corresponding to the intensity of the first communication signal. The transmitter includes a variable amplitude amplifier and a power amplifier, and the controller includes a central processing unit and a memory. The controller controls a gain of the variable amplitude amplifier and a bias condition of the power amplifier according to a function stored in the memory.

Abstract: 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 data source, and comprising a transmitting device which is in communication with the at least one data terminal and which generates the radio signals with data signals of the external data source, transmitted via the at least one data terminal. The radio device exhibits an energy extraction device, the input of which is connected to the at least one data terminal and the output of which is connected to a power supply input of the transmitting device and which takes energy from the data signals of the external data source and feeds this energy at the power supply input into the transmitting device in order to operate it.

Abstract: 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) to the second digital device. The interface circuit is configured to provide a first device supply voltage (Vcc2) to the interface node until a second device supply voltage (Vcc) at the interface node exceeds the first voltage. A data circuit (220) at the first digital device is coupled to the interface node. The data circuit is responsive to voltage on the interface node for providing digital logic signals at appropriate voltage levels to the second digital device.

Abstract: 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 in the horizontal plane. This is accomplished by an antenna pair mounted separately thereon, the first antenna thereof being omni-directional in the horizontal plane when the device is operative under the first operating state, and the second antenna thereof being omni-directional in the horizontal plane when the device is operative under the second operating state.