Abstract: In communication device comprising a plurality of distributed transceivers and one or more corresponding antenna arrays, a first distributed transceiver is configured to receive signals comprising one or more first data streams and a second distributed transceiver is configured to receive signals comprising one or more second data streams. One or more components within a transmit processing chain of the first distributed transceiver and/or one or more components within a transmit processing chain of the second distributed transceiver are adjusted to maximize beamforming gain for the one or more first data streams and/or second data streams. A phase of the one or more first data streams and/or the one or more second data streams may be adjusted by the one or more components within a transmit processing chain of the first distributed transceiver and/or the one or more components within a transmit processing chain of the second distributed transceiver.

Abstract: In communication device comprising a plurality of distributed transceivers and one or more corresponding antenna arrays, a first distributed transceiver is configured to receive signals comprising one or more first data streams and a second distributed transceiver is configured to receive signals comprising one or more second data streams. One or more components within a transmit processing chain of the first distributed transceiver and/or one or more components within a transmit processing chain of the second distributed transceiver are adjusted to maximize beamforming gain for the one or more first data streams and/or second data streams. A phase of the one or more first data streams and/or the one or more second data streams may be adjusted by the one or more components within a transmit processing chain of the first distributed transceiver and/or the one or more components within a transmit processing chain of the second distributed transceiver.

Abstract: In communication device comprising a plurality of distributed transceivers and one or more corresponding antenna arrays, a first distributed transceiver is configured to receive signals comprising one or more first data streams and a second distributed transceiver is configured to receive signals comprising one or more second data streams. One or more components within a transmit processing chain of the first distributed transceiver and/or one or more components within a transmit processing chain of the second distributed transceiver are adjusted to maximize beamforming gain for the one or more first data streams and/or second data streams. A phase of the one or more first data streams and/or the one or more second data streams may be adjusted by the one or more components within a transmit processing chain of the first distributed transceiver and/or the one or more components within a transmit processing chain of the second distributed transceiver.

Abstract: The present disclosure relates to a method in a cellular radio communication network. The method comprises scheduling a radio device on a cell in an unlicensed frequency band. The method also comprises attempting to send a discovery signal for the cell in the unlicensed frequency band using a Listen-Before-Talk (LBT) procedure. The method also comprises receiving RSSI information about a Received Signal Strength Indicator (RSSI) measurement performed by the radio device, indicating that the radio device has failed to identify the cell, the RSSI information comprising a time stamp of the RSSI measurement. The method also comprises by means of the time stamp, associating the RSSI measurement with the attempt to send a discovery signal.

Abstract: In communication device comprising a plurality of distributed transceivers and one or more corresponding antenna arrays, a first distributed transceiver is configured to receive signals comprising one or more first data streams and a second distributed transceiver is configured to receive signals comprising one or more second data streams. One or more components within a transmit processing chain of the first distributed transceiver and/or one or more components within a transmit processing chain of the second distributed transceiver are adjusted to maximize beamforming gain for the one or more first data streams and/or second data streams. A phase of the one or more first data streams and/or the one or more second data streams may be adjusted by the one or more components within a transmit processing chain of the first distributed transceiver and/or the one or more components within a transmit processing chain of the second distributed transceiver.

Abstract: A method for testing a memory includes performing an error correction code check (ECC check) on user data stored in the memory, inverting the user data stored in the memory, performing a further ECC check on the inverted user data stored in the memory, and inverting the inverted user data stored in the memory for restoring the user data in the memory.

Abstract: Methods and systems for providing consistency in noise reduction during speech and non-speech periods are provided. First and second signals are received. The first signal includes at least a voice component. The second signal includes at least the voice component modified by human tissue of a user. First and second weights may be assigned per subband to the first and second signals, respectively. The first and second signals are processed to obtain respective first and second full-band power estimates. During periods when the user's speech is not present, the first weight and the second weight are adjusted based at least partially on the first full-band power estimate and the second full-band power estimate. The first and second signals are blended based on the adjusted weights to generate an enhanced voice signal. The second signal may be aligned with the first signal prior to the blending.

Abstract: Methods and a receiver of positioning a spurious signal for reducing the impact of the spurious signal on a received Orthogonal Frequency Division Multiplexing, OFDM signal, are presented. The method comprises determining the frequency of a spurious signal (steps 102, 204, 404), determining the frequency for the respective sub-carrier of the OFDM signal and the difference between the frequency of a sub-carrier and the frequency of a spurious signal (steps 104, 206, 406), and adjusting at least one of: the frequency of the first oscillator (step 208) and a parameter related to the frequency of a second oscillator, to decrease the frequency difference between a sub-carrier and a spurious signal (steps 106, 212, 408). By positioning a spurious signal at or near a sub-carrier frequency, the performance impact of the spurious signal is reduced, and the receiver performance improved.

Abstract: A LTE compliant RF transceiver includes at least one transmit path and at least two receive paths. A switching arrangement connected between a transmit PLL synthesizer and at least one transmit path as well as between a receive PLL synthesizer and at least two receive paths allows the transmit PLL synthesizer to selectively be connected to the receive side of the transceiver as well as the receive PLL synthesizer to selectively be connected to the transmit side of the transceiver, thereby considerably increasing flexibility of the RF transceiver which enables both speed-up of handover procedures and power savings. A modem including the transceiver is also provided.

Abstract: A radio frequency (RF) receiver with frequency planning includes an analog receiver, a digital processor, and a clock synthesizer. The analog receiver has an input for receiving an RF input signal, and an output for providing a digital intermediate frequency (IF) signal. The digital processor has a first input for receiving the digital IF signal, a second input for receiving a clock signal, a signal output for providing an IF output signal, and a control output for providing a clock control signal. The clock synthesizer has an input for receiving the clock control signal, and an output for providing the clock signal, and is controllable to adjust a frequency of the clock signal to a selected one of a predetermined number of frequencies within a predetermined frequency range in response to the clock control signal.

Abstract: Frequency conversion methods and systems are disclosed for a transceiver for personal area networks (PAN) and near field communication (NFC). NFC data may be received and/or transmitted via the NFC radio and PAN data may be received and/or transmitted via the PAN radio. With an integration of frequency conversion for PAN and NFC, both systems may operate from a single frequency source, thereby reducing part count and power consumption. Communication between PAN and NFC channels may be enabled via a single chip.

Abstract: A receiver of a GNSS system is provided. The receiver comprises two mixers and a processing circuit. The first mixer down-converts an input radio-frequency signal comprising a first GNSS signal and a second GNSS signal into a first low-frequency signal. The second mixer down-converts the input radio-frequency signal into a second low-frequency signal. The processing circuit generates at least one phase-shifted low-frequency signal according to at least the first low-frequency signal, extract signal components of the first GNSS signal by rejecting signal components of the second GNSS signal according to the second low-frequency signal and the at least one phase-shifted low-frequency signal, and extract signal components of the second GNSS signal by rejecting signal components of the first GNSS signal according to the second low-frequency signal and the at least one phase-shifted low-frequency signal. The first and second GNSS signals are situated in different frequency ranges.

Abstract: An electronic device capable of performing automatic frequency control (AFC) to maintain frequency and timing without good received bursts, in which an oscillation unit and a baseband processing unit are provided. Wherein, the baseband processing unit computes a compensation adjustment according to a prediction model and stored information regarding a previous digital value adjustment when detecting that the baseband processing unit is incapable of controlling the oscillation unit according to received bursts from the remote communication unit, and adjusts the oscillation unit according to the determined compensation adjustment.

Abstract: An apparatus and method for operating a frequency synthesizer wherein a value of an first control signal associated with a fine frequency feedback loop connected to a signal generator is monitored, and a second control signal associated with a medium or coarse frequency feedback loop connected to the signal generator is adjusted based on the monitoring. The first and second control signals are then output to control the frequency synthesizer.

Abstract: Frequency conversion methods and systems for a transceiver for Bluetooth and near field communication. NFC data may be received and/or transmitted via the NFC radio and Bluetooth data may be received and/or transmitted via the Bluetooth radio. With an integration of frequency conversion for Bluetooth and NFC, both systems may operate from a single frequency source, thereby reducing part count and power consumption. Communication between Bluetooth and NFC channels may be enabled via a single chip.

Abstract: The present invention relates to fixed wireless phones and describes a fixed wireless phone and a method of using a handle cord of a fixed wireless phone as a FM antenna. An FM antenna signal access point is disposed on one of the four wires connecting a baseband chip with the handle; a first ferrite bead is connected in series between the FM antenna signal access point and an output terminal of the baseband chip; a FM frequency selective circuit is lapped with the FM antenna signal access point; and the FM frequency selective circuit is connected with an FM chip. The method of using the handle cord of a fixed wireless phone as a FM antenna and the fixed wireless phone according to the present invention uses the handle cord of the fixed wireless phone as FM antenna and adds a corresponding frequency selective circuit.

Abstract: Techniques for decimating a first periodic signal to generate a second periodic signal. In an exemplary embodiment, the first periodic signal is divided by a configurable integer ratio divider, and the output of the divider is delayed by a configurable fractional delay. The configurable fractional delay may be noise-shaped using, e.g., sigma-delta modulation techniques to spread the quantization noise of the fractional delay over a wide bandwidth. In an exemplary embodiment, the first and second periodic signals may be used to generate the transmit (TX) and receive (RX) local oscillator (LO) signals for a communications transceiver from a single phase-locked loop (PLL) output.

Abstract: A processor for a user-portable device, the user-portable device comprising FM transmission circuitry, wherein the processor is configured to obtain a first set of valid geo-specific FM transmission parameters for the current geographical location of the user-portable device based on received global positioning satellite (GPS) data for the current geographical location of the user-portable device; and provide signalling to configure the FM transmission circuitry to use the valid first set of geo-specific FM transmission parameters.

Abstract: According to one embodiment, a register outputs a first control code in first and second operation modes, saves the first control code as a third control code at an end of the first operation mode, and outputs the third control code at a beginning of a third operation mode. In the first operation mode, a digital-to-analog converter supplies a control signal with a control voltage to a voltage controlled oscillator. In the second operation mode, the control signal is supplied to a buffer amplifier, the amplifier drives a bandlimiting filter, and the filter generates the control voltage. In the third operation mode, the control signal is supplied to the filter, and the filter generates the control voltage.

Abstract: A mobile communication terminal and a method for controlling the mobile communication terminal are discussed. According to an embodiment, the mobile communication terminal includes at least two memories to store data; and a controller, wherein if the controller loses its control authority for one of the at least two memories while certain data is read and processed from the one of the at least two memories, the controller reads and processes the same certain data or related data stored in another one of the at least two memories.

Abstract: Circuit, process, and use of a memory for transmitting and/or receiving in a radio network, with a memory, which has a first interface for reading and writing and a second interface for reading and writing, with an arithmetic logic unit, which is connected to the first interface for reading and writing, with a control unit, which is connected to the second interface for reading and writing, and with a transmit/receive unit, which is connected to the control unit for writing received data via the second interface of the memory and for reading transmit data via the second interface of the memory.

Abstract: A management unit allocates network resources multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a communication device interface for facilitating a bidirectional data communication with the multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to multiservice communication devices and inbound control data received from at multiservice communication devices. The wireless control channel is separate from the communication between multiservice communication devices and the networks. A network interface receives network resource data from the networks. A management processing unit generates the outbound control data in response. The management processing unit facilities the handoff of a real-time service accessed by the multiservice communication devices via a first network to a second network.

Abstract: A management unit allocates network resources to a plurality of multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a communication device interface for facilitating a bidirectional data communication with the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices, wherein the wireless control channel is separate from the communication between the plurality of multiservice communication devices and the plurality of networks. A network interface receives network resource data from the plurality of networks.

Abstract: A service aggregator allocates network resources to a plurality of multiservice communication devices capable of communicating via a plurality of networks. The service aggregator includes a communication device interface for facilitating a bidirectional data communication with the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices, wherein the wireless control channel is separate from the communication between the plurality of multiservice communication devices and the plurality of networks. A network interface receives network resource data from the plurality of networks.

Abstract: Frequency conversion methods and systems for Bluetooth and FM radio communication are provided. FM data may be received and/or transmitted via the FM radio and Bluetooth data may be received and/or transmitted via the Bluetooth radio. With an integration of frequency conversion for Bluetooth and FM, both systems can operate from a single frequency source, thereby reducing part count and power consumption. Communication between Bluetooth and FM channels may be enabled via a single chip.

Abstract: A Received Signal Strength Indicator (RSSI) circuit includes a subsampling circuit that processes an input signal comprising a sampling frequency, fs, wherein the subsampling circuit subsamples the input signal, wherein the input signal is subsampled to concentrate a power in a narrow bandwidth; an analog-to-digital converter (ADC) operatively connected to the subsampling circuit, wherein the ADC digitizes the subsampled signal; and a baseband detector operatively connected to the ADC, wherein the baseband detector detects a power from the digitized subsampled signal and creates an output signal. The subsampling circuit and the ADC may operate as a single subsampling ADC. The RSSI circuit may further comprise ignoring higher order aliases at a multiple of the sampling frequency if the baseband detector is clocked at the sampling frequency.

Abstract: A system and a method for providing an additional audio content at the input of the car radio (or other radio receiver) by tracking the available channels. The invention provides an invasive and non-invasive way of adding dominant audio content source to the existing car audio systems.

Abstract: An RF transmitter (104) includes a shared local oscillator circuit (126), transmit path circuitry (120, 122, 124), a divider (134), and a lowpass filter (322). The shared local oscillator circuit (126) generates a shared LO signal (116). The transmit path circuitry (120, 122, 124) mixes a baseband signal (107) and an IF mixing signal (116) to provide an IF signal (112), and converts the IF signal (112) to an RF transmit signal (105) at a desired frequency using an RF mixing signal received at a mixing input thereof. The divider (134) divides the shared LO signal (116) to provide an unfiltered RF mixing signal. The lowpass filter (322) has an input for receiving the unfiltered RF mixing signal, and an output coupled to the mixing input of the transmit path circuitry (120, 122, 124) for providing the RF mixing signal.

Abstract: An integrated circuit radio receiver includes radio frequency (“RF”) front end circuitry for receiving and transmitting digital data received through a wireless interface. A baseband processor is operable to process the digital data received through the wireless interface. A plurality of digital filtering logic is included wherein each digital filtering logic includes a level of digital filtering based upon a received digital data signal format. The integrated circuit radio receiver includes logic that is operable to select between each digital filtering logic of the plurality of digital filtering logic based upon the received digital data signal format to process the digital data received through the wireless interface with the selected level of digital filtering.

Abstract: A method and apparatus prevents interference between a radio signal from RDS-TMC service provider for receiving traffic and travel data by an RDS-TMC receiver and a radio signal for transmitting audio, text, or image data from an FM modulator. The method includes the steps of starting an operation of the receiver system, stopping an operation of the FM modulator while keeping operation of the RDS-TMC receiver, examining whether an RDS-TMC signal from a service provider is available at a current location, receiving the RDS-TMC signal and retrieving RDS-TMC data therefrom, sending the retrieved RDS-TMC data to an audio/video system, and starting the operation of the FM modulator while allowing to output an FM signal from the FM modulator at allowable frequency bands which are outside of a blocked range to send data to the audio/video system.

Abstract: A highly agile low phase noise frequency synthesizer is provided for rapid generation of frequency specific signals. The frequency synthesizer is capable of rapidly generating signals at different output frequencies while maintaining low cross-coupling. Two or more signal generators utilize a reference frequency to generate two or more signals. These signals are limit processed to reduce cross-coupling prior to being presented to a switch. Responsive to a control signal, the switch outputs one of the signals to a frequency modification device, such as a frequency divider or multiplier. Responsive to a control signal, the frequency modification device scales the frequency of the switch output to convert the frequency of the switch output signal to a desired output frequency. By maintaining sufficient frequency separation between the switch input signals cross-coupling and phase noise is minimized and implementation on an integrated circuit may be achieved.

Abstract: In one embodiment the present invention include systems and methods for synchronizing wireless communication systems. In one embodiment, a baseband processor includes a reference frequency for synchronizing processing of received data. The baseband processor may detect received data and determine frequency hopping sequences to program a frequency synthesizer. The baseband processor may synchronize the synthesizer's frequency changes to receive incoming data. Symbols received by the system may be detected and used to start the reference frequency. In one embodiment, the reference frequency has a period equal to the symbol period. Cross-correlators may be used to detect frequency hopping patterns. Clusters of results from the cross-correlators may be analyzed and the results used to control timing of the system.

Abstract: Disclosed is a mobile communication terminal which is provided with an equalizer function of audio equipment to adjust a timbre of transmitting/received speech sounds so as to satisfy a great number of users having various individualities and tastes simultaneously. The mobile communication terminal according to the present invention includes an equalizer connected to a CODEC, a speaker and a microphone for adjusting a timbre of an analog speech signal inputted thereto from the CODEC and/or a speech signal inputted thereto through the microphone, and an equalizer control circuit for controlling a timbre control operation of the equalizer according to a control signal of a CPU.

Abstract: A multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of the signal-processing paths, includes a band identification circuit for identifying a frequency band, the band identification circuit identifying a frequency band in dependence on a frequency-band information received from a controller which controls an operation of the multi-band wireless transceiver, and selecting one of the signal-processing paths in accordance with the identified frequency band.

Abstract: A variable attenuator and method of attenuating a signal is presented. The variable attenuator contains an input that receives an input signal to be attenuated. A voltage divider between a resistor and parallel MOSFETs provides the attenuated input signal. The MOSFETs have different sizes and have gates that are connected to a control signal through different resistances such that the larger the MOSFET, the larger the resistance. The control signal is dependent on the output of the attenuator. The arrangement extends the linearity of the attenuation over a wide voltage range of the control signal and decreases the intermodulation distortion of the attenuator.

Abstract: One of objects of a wireless communication apparatus according to the present invention is to realize stable communication regardless of received signal strength indication and information amount. The wireless communication apparatus for communicating in an autonomous distributed wireless network includes a detection unit which generates a detection signal by detecting a first wireless signal from a first wireless apparatus; a wireless circuit which receives a second wireless signal relating to said first wireless signal, transmitted from a second wireless apparatus which received said first wireless signal; a signal estimation unit which estimates said detection signal and the received second wireless signal; a signal selector which selects either said detection signal or the received second wireless signal, based on an estimation result of said signal estimation unit; and a demodulator which demodulates the signal selected by said signal selector.

Abstract: An integrated circuit radio receiver includes radio frequency (“RF”) front end circuitry for receiving and transmitting digital data received through a wireless interface. A baseband processor is operable to process the digital data received through the wireless interface. A first logic is operable to provide a first level of digital filtering for a first received digital data signal format. A second logic is operable to provide the first level of digital filtering and derotation for a second received digital data signal format. A third logic is operable to provide a second level of digital filtering for a third received digital data signal format wherein the second level of digital filtering is reduced in comparison to the first level of digital filtering. Selection logic is operable to select between the first, second and third logic for processing the digital data received through the wireless interface.

Abstract: In a wireless communication system which may include a mobile device having an integrated FM radio transmitter and a FM radio receiver, a geographic location of the mobile device may be determined. A FM channel map may be determined based on the location and the FM radio transmitter may be configured for transmitting FM signals based on the FM channel map, which may include a list of ranked FM channels. The geographic location may be acquired from received RDS or RBDS signals, received GPS signals, other received wireless signals, and/or from user data. Channel spacing, channel offset and/or frequency band may be determined for the FM channel map. A frequency for transmitting FM signals via the FM radio transmitter may be selected based on the determined FM channel map. The FM radio receiver may also be configured for receiving FM signals based on the determined FM channel map.

Abstract: A first receiver frequency reference is passively coupled to a second receiver by tapping a signal directly from the resonant element, such as a crystal, of an oscillator in the first receiver to drive the input of the second receiver. The sinusoidal signal from the resonant element is relatively free of harmonics and minimizes interference that could be caused by harmonics of a square wave signal coupling or an amplified signal. The oscillator of each receiver can be selectively enabled or disabled to allow the receiver to either generate or receive the frequency reference. This technique of coupling can be used to couple a frequency reference signal between integrated circuit receivers.

Abstract: One of objects of a wireless communication apparatus according to the present invention is to realize stable communication regardless of received signal strength indication and information amount. The wireless communication apparatus for communicating in an autonomous distributed wireless network includes a detection unit which generates a detection signal by detecting a first wireless signal from a first wireless apparatus; a wireless circuit which receives a second wireless signal relating to said first wireless signal, transmitted from a second wireless apparatus which received said first wireless signal; a signal estimation unit which estimates said detection signal and the received second wireless signal; a signal selector which selects either said detection signal or the received second wireless signal, based on an estimation result of said signal estimation unit; and a demodulator which demodulates the signal selected by said signal selector.

Abstract: A cellular phone and method for receiving and transmitting signals of different frequency bands and wireless standards utilizes an architecture that allows the use of switches that are less expensive and less lossy than switches used in comparable cellular phones. The architecture also allows the use of only narrow-banded antennas, rather than a combination of a narrow-banded antenna and a harmonic antenna. As a result, the performance of the cellular phone can be significantly improved.

Abstract: The invention is directed to an apparatus, method and system for providing reduced power consumption, fast processing of digitized communication signals and relatively easy reconfiguration for different applications, such as communication protocols/standards. The invention recognizes that the processing of signals associated with different types of communication standards can be recharacterized as deterministic data flows. Also, for each deterministic data flow, several of the same categories of computation are performed in substantially the same manner, albeit in a different order or somewhat differently, that is unique to a particular application. Based on this recharacterization, the invention divides the processing of the deterministic data flow for a communication signal among several Class processors that are separately configurable to optimize their particular category/class of computation in the processing of the signal.

Abstract: A packet stream multiplexer may include one or more control loops (e.g., digital phase locked loops) for tracking the source clock frequency associated with a packet stream. A first control loop may slowly drive an error between a received timestamp and an estimated timestamp to zero. A second control loop may more quickly drive a first derivative of the error to zero. The second control loop may include a set of digital filters ordered according to tracking speed. The output of the slowest filter is initially selected for updating the source clock frequency estimate. As time progresses, the faster filters are selected in succession. The estimated source clock frequency is used to restamp packets of the packet stream as they are sent out onto an output channel.

Abstract: The present invention discloses a communication device with an adjustable brightness that includes a control circuit coupled to a modulating unit, and the modulating unit includes a tuning button disposed on the communication device that allows user to make adjustments or controls by the tuning button to produce a first set value, and the modulating unit converts the power received by a power supply circuit of the communication device into a corresponding operating voltage according to the first set value and sends the operating voltage to a light emitting unit of the communication device for projecting a light source according to the magnitude of the operating voltage, so as to adjust and change the brightness of the light emitting unit, and achieve the effects of saving power and extending the life of the light emitting units.

Abstract: A system is disclosed for interfacing a wireless communication device baseband module and a radio frequency integrated circuit. The system accepts a control signal from the baseband module. The control signal from the baseband module is generally at a first baseband voltage. The first baseband voltage is generally the baseband operating voltage level. The system distributes the control signal, via data latches, to a plurality of local level shifters. The plurality of local level shifters are associated with components of the radio frequency integrated circuit. The local level shifters convert the control signal to a shifted control signal at a second voltage level. The second voltage level is generally the component operating voltage. The shifted control signal may be maintained at the component while the radio frequency integrated circuit is intermittently shutdown. The system eliminates the need to reprogram radio frequency integrated circuit components after the shutdown period.

Abstract: A multimode wireless terminal suitable for received level monitoring for a base station serving as an intersystem handover destination includes a first wireless transmitter-receiver unit for GSM, a second wireless transmitter-receiver unit for WCDMA, and a communication processor unit and an antenna switch unit connected to these wireless transmitter-receiver units. While conducting communication with a WCDMA network system via the second wireless transmitter-receiver unit, a level of a signal received from a GSM base station is monitored via the first wireless transmitter-receiver unit. A communication processor unit determines whether the level monitoring is interfered with by a WCDMA transmission signal, on the basis of a relation between a WCDMA transmission frequency and a reception frequency supplied from the GSM base station.

Abstract: An energy-saving method for wireless reception of data modulated on a carrier signal is carried out in a receiver circuit including a first group and a second group of circuit elements. The first group of the circuit elements required for recovering the data from the modulated carrier signal are supplied intermittently with electrical energy, while the remaining circuit elements of the second group are supplied with uninterrupted electrical energy. After an intermittent unpowered phase without electrical energy being supplied to the first group of circuit elements, the receiver can be operated in the next intermittent powered phase of the second group of circuit elements with parameters that determined the receiver properties which were present in the last reception phase and that have been stored, thus eliminating the time required for renewed tuning in.

Abstract: A system and a method are provided for reducing the effects of spurious frequencies in a wireless communications device. The system comprises a processor having a reference frequency input and a clock having an output connected to the processor input. The clock supplies a clock frequency, or reference frequency, to the processor. The reference frequency is the frequency at which the processor operates. The clock also has an input for selecting a reference frequency to provide to the processor. The system also includes a transceiver having a plurality of selectable communications passbands. If the wireless communications device is a telephone, for example, the transceiver frequency (passband) may change as a function of the mode in which the phone is operating (AMPS, PCS, GSM, CDMA, or W-CDMA). In response to changing operating modes (transceiver passband), the clock frequency is adjusted.

Abstract: An apparatus provides a multimedia service in a mobile terminal. A main controller controls a call setup operation between the mobile terminal and a base station. A codec codes an audio signal output from a microphone and decodes a received audio signal. A display outputs image data, and a display driver drives the display. An image processor buffers information received from the main controller and a multimedia service processor, converts the buffered information according to an output mode of the display and provides the converted information to the display driver. The multimedia service processor performs, at a multimedia service request, accesses the corresponding server and sends a data request to the server, outputs received image data through the image processor, outputs received menu and character information data to the main controller, and outputs received audio data through the codec.

Abstract: Apparatus and methods are disclosed for providing text information which identifies audio program selections, such as musical selections, stored on a compact disk (CD). Digital identification numbers encoded on the disk are provided by a compact disk player to a digital processor having a memory storage device. The identification numbers include an album identification number, and the track number selected for play. The memory storage device has stored therein text data identifying a plurality of program selections, organized by album and track identification number. The identification signals provided by the CD player are used to address the proper identifying text data for the selection being played. The identifying text data may be organized for radio broadcast along with the musical selection, and a receiver is used to display the data in text form to identify the musical selection as it is being reproduced.