Abstract: Apparatuses and methods for error correcting data are provided. A first error correction code (ECC) decoder is configured to decode a first codeword to provide a first result and to decode a second codeword to provide a second result. The decoder is configured to run up to a particular number of iterations to provide each of the results. A second ECC decoder is configured to decode a third codeword to provide decoded data, wherein the third codeword includes the first result and the second result. An evaluation module is configured to initiate a recovery scheme responsive to the decoded data including an error.

Abstract: A bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 2/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 16-symbol mapping.

Abstract: A system including a first module, a second module and a third module. The first module is configured to generate a first parity check matrix. The second module is configured to append an appended matrix to the first parity check matrix to generate a resultant parity check matrix. The appended matrix includes additional elements. The third module is configured to receive user data and encode the user data based on the resultant parity check matrix.

Abstract: A method for transmitting data using a convolutional turbo code (CTC) encoder. Specifically, the method comprises: encoding input data bits, which have been input through two input ports of the CTC encoder; interleaving the input data bits using four CTC interleaver parameters P0, P1, P2 and P3 corresponding to sizes of the input data bits; encoding the interleaved data bits; and selectively transmitting the input data bits, the first encoded bits and the second encoded bits, in accordance with a predetermined coding rate. Here, P0 is a relative prime number to N, which is ½ of the size of each of the input data bits, P2 has a value of N?1, and an absolute value of a difference between P1 and P3 is 1.

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 7/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.

Abstract: A transmitting apparatus and a receiving apparatus are provided. The transmitting apparatus includes an encoder configured to generate a low density parity check (LDPC) codeword by performing LDPC encoding, an interleaver configured to interleave the LDPC codeword, and a modulator configured to modulate the interleaved LDPC codeword according to a modulation method to generate a modulation symbol. The interleaver performs interleaving by dividing the LDPC codeword into a plurality of groups, rearranging an order of the plurality of groups in group units, and dividing the plurality of rearranged groups based on a modulation order according to the modulation method.

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 64-symbol mapping.

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 2/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 256-symbol mapping.

Abstract: In a network for reliable transfer of packets from a transmitter to a receiver using an Internet Protocol (IP), a system for packet recovery comprising a detection block (detector) for packet loss detection and a probe device (probe) for Forward Error Correction (FEC) packets transmission, wherein the detector includes means for sending a missing packet report to the probe upon detecting a missing packet, wherein the probe includes means for storing received packets, sending FEC packets and adapting a size of the FEC packets to an error rate computed from the missing packet reports, wherein the size of FEC packets is made larger or smaller responsive to the error rate increasing or decreasing, respectively, and wherein the probe is located close to the transmitter for reliable packets reception and the detector is located close to the receiver for reliably detecting loss of packets in a receiver's surroundings.

Abstract: Example apparatuses and methods for cancellation of transmitter self-interference leakage in a transceiver are described. An example transceiver includes a multiport transformer that may be used as a part of the impedance matching network on the receiver side of the transceiver. One primary port of the multiport transformer may form a portion of a cancellation circuit that, along with other components in a cancellation path, provide amplitude and/or phase modulation to a cancellation signal. The cancellation circuit may tunable and may include only reactive components in some examples.

Abstract: Described herein are technologies related to an implementation of a time interleaved digital-to-time converter (DTC) topology to generate high frequency phase modulated local oscillator (LO) signals. A first and second DTC are connected to an oscillator where outputs of the two DTCs are combined to generate a phase modulated signal and the two DTCs have a frequency rate that is half the frequency rate of the phase modulated signal. The two DTCs can operate at a 50 percent or lower duty cycle.

Abstract: A system includes baseband circuitry and a transmitter. The electrical behavior of the transmitter may cause distortion effects in the transmit output of the transmitter during transmissions based on input signals from the baseband circuitry. The baseband circuitry may reference a calibration evaluation function for multiple transmit variables to pre-distort the input signal to compensate for the distortion effect. Pre-distortion calibration logic may generate the evaluation function using a one-dimensional calibration technique. The evaluation function may facilitate the baseband accessing calibration data without necessarily relying on a look-up table. In some cases, a one-dimensional calibration for multiple transmit variables may use fewer calibration points than a similarly accurate multi-dimensional calibration.

Abstract: A method and system for providing radio frequency auto gain control (RF AGC) for a specific frequency is provided herein. The method includes obtaining a noise measurement (N) and radio frequency level for the specific frequency; scanning a band of frequencies that the specific frequency is part of, and storing a plurality of undesired frequencies; computing a frequency intermodulation up to a predetermined level based on the plurality of undesired frequencies; and in response to the frequency intermodulation being not equal to the specific frequency, performing an iterative process to readjust the RF AGC, the iterative process including a readjustment of the RF AGC based on a noise floor performance.

Abstract: An interference cancellation system (ICS) may be used with a communication system to prevent or minimize interference from one or more sources. The ICS may receive radio RF signals comprised of one or more signals of interest (SOI) and multiple interfering signals. The ICS may use a sample of the interfering signals to cancel the interfering signals from the SOI. The multiple interfering signals may be converted into a single optical signal for cancellation. One or more optical cancellation paths may be used for interference cancellation. Each optical cancellation path may include an optical attenuator and/or an optical delay to achieve phase shifts and/or delays for interference cancellation.

Abstract: A radio frequency (RF) receiver that includes a low noise amplifier (LNA), a tunable resonant circuit, and a processor for performing calibration of the RF receiver. The processor is configured to sweep the tunable resonant circuit through a dynamic range of resonant frequency settings while estimating noise signal output power at the LNA at each setting. The processor is also configured to set the tunable resonant circuit to the setting that produces the greatest noise signal power output at the LNA.

Abstract: Apparatus and methods for analog-to-digital conversion of quadrature receive signals are provided herein. In certain implementations, a transceiver system includes at least a first pair of analog-to-digital converters (ADCs) associated with a first quadrature receiver channel and a second pair of ADCs associated with a second quadrature receiver channel. The first and second pairs of ADCs can provide analog-to-digital conversion of the same receive signal, but can have different noise profiles relative to one another, such as a low pass noise profile and a band pass noise profile. The transceiver system can further include a reconstruction filter for combining the outputs of at least the first and second pairs of ADCs to generate output signals associated with a lower overall noise profile relative to that of either pair of ADCs alone.

Abstract: A processor, comprising a first data input configured to receive a stream of samples of a first signal having a spectral space, the stream having a data rate of at least 4 GHz; a second data input configured to receive a stream of samples of a second signal; a multitap correlator, configured to receive the first stream of samples and the second stream of samples, and producing at least one correlation output for each respective sequential sample of the first signal received; and a programmable control configured to alter a relationship of the stream of samples of the first signal and the stream of samples of the second signal, to thereby select, under program control, an alterable correlation output.

Abstract: A front end circuit includes a switch including a common terminal and a plurality of individual terminals, in which at least two kinds of reception signals of different frequency bands are input to the common terminal, and in which one of the at least two kinds of reception signals is output to an individual terminal selected from the plurality of individual terminals, and in which a non-selected terminal is grounded, and a balun including a first terminal and a second terminal defining unbalanced ports as well as a third terminal and a fourth terminal defining balanced ports. The first individual terminal of the switch is indirectly connected to the first terminal of the balun and the second individual terminal of the switch is indirectly connected to the second terminal of the balun. The at least two kinds of reception signals are output in a balanced mode from the third terminal and the fourth terminal of the balun.

Abstract: An electronic device and method of managing a Subscriber Identification Module (SIM) are provided. The electronic device includes a memory configured to store at least one instruction; and a provisioning manager connected to the memory, wherein the instruction related to an operation performance of the provisioning manager is configured to search for an accessible communication service provider network on the basis of a Subscriber Identification Module (SIM) where a profile relating to a communication service connection of at least one communication service provider network is not installed and collect at least one communication service provider information on the basis of the found communication service provider network.

Abstract: A wristwatch includes a watch body having a display part on an upper surface thereof and having a seating part at an outline part of the display part, and a Bluetooth headset including a sound output unit that outputs sound information received from a master terminal, having a shape corresponding to an outline part of the display part to surround the display part, seated in the seating part, and installed to be attached to and detached from the watch body, the Bluetooth headset being a slaver terminal of the master terminal that functions as a body case or a bezel of the watch body.

Abstract: A system and method provide a stable support for a portable electronic device such as a tablet computer, a personal digital assistant, a smartphone, or the like. The system includes a support structure that rests on a table, a tray or other platform positioned proximate to a person using the portable electronic device. The support structure has a non-skid base positioned on the platform and has an upper surface positioned at a selected angle with respect to the base. The upper surface includes a recess that receives a configuration frame (or insert). The configuration frame includes an opening to receive and retain the portable electronic device. The configuration frame is rotatable to at least two positions to orient the portable electronic device in at least two orientations (e.g., portrait and landscape) with respect to the person. In certain embodiments, the presentation angle of the upper surface is variable.

Abstract: A wireless communication accessory for a mobile communication device comprising: a casing that conforms, at least partially, to the outer shape of the mobile communication device; a processing circuit housed within the casing and configured to process a first data; and a wireless transmitter coupled to the processing circuit, where the transmitter is configured to transmit the first data. The wireless communication accessory may further comprise a wireless receiver that is configured to receive a second data from an external wireless device. The first data may be associated with any or all of the following: payment card information for processing purchase transactions; public transportation account information for processing travel credits on public transportation systems; and access card information for gaining access into restricted areas.

Abstract: A tablet holding device for allowing a user to view a mobile electronic device while lying in a supine position. The tablet holding device includes a base portion and an upper portion securable thereto, wherein the base portion and upper portion form a cavity in which the user can position his or her head. The base portion is shaped so as to support a pillow thereon or may include padding thereon. The upper portion is positioned directly above the base portion and includes a fastener on a front end thereof for securing a mobile electronic device in position for a user lying on the base portion to view. The tablet holding device may further include an audio unit having a microprocessor, speakers, and a wireless transceiver for communicating with a mobile electronic device so as to play audio from said mobile electronic device.

Abstract: A waterproof protective case comprising a shell that at least partially encloses a portable electronic device, the shell having an aperture aligned with an opening of a storage area of the portable electronic device, the protective case including a cap that is removably attached to a stylus of the portable electronic device, the aperture of the shell configured to releasably retain a portion of the cap when the stylus is inserted into the opening of the storage area of the portable electronic device, the cap configured to form a waterproof seal when the cap is retained within the aperture of the shell, the cap configured to remove the stylus from the storage area of the protective electronic device while the portable electronic device is in the waterproof protective case.

Abstract: A semiconductor device includes a plurality of first inductors having a spiral shape and provided in a modulator of a transmitting side, and a plurality of second inductors having a horseshoe shape and provided in an oscillator of a receiving side, the plurality of second inductors being arranged such that an opening of plurality of second inductors is disposed opposite to the plurality of first inductors. The semiconductor device performs a transmission process and a reception process using a radio wave.

Abstract: A method includes determining that an antenna shared between a Bluetooth transceiver and a WLAN transceiver is available to the WLAN transceiver based on an activity signal associated with the Bluetooth transceiver. Access to the shared antenna is provided to the WLAN transceiver based on the determination, and the WLAN transceiver is configured to use diversity in transacting WLAN signals via a plurality of antennas, including the shared antenna. Access to the shared antenna is transferred from the WLAN transceiver to the Bluetooth transceiver based on the activity signal.

Abstract: An intelligent backhaul radio that has an advanced antenna system for use in PTP or PMP topologies. The antenna system provides a significant diversity benefit. Antenna configurations are disclosed that provide for increased transmitter to receiver isolation, adaptive polarization and MIMO transmission equalization. Adaptive optimization of transmission parameters based upon side information provided in the form of metric feedback from a far end receiver utilizing the antenna system is also disclosed.

Abstract: A communication device includes a transmitter operable to couple to a plurality of transceivers via a plurality of transmission channels, transmit payload data via the plurality of transmission channels, and obtain monitored transmission conditions for one or more transmission channels in the plurality of transmission channels. During operation, the transmitter is further operable to generate reconfiguration request signals resultant from processing the monitored transmission conditions and transmit the reconfiguration request signals on transmission channels in the plurality of transmission channels.

Abstract: A system and a method for time synchronization on a wireless network, based on the exchange of Chirp Spread Spectrum information. Time signals are broadcast from a master (40) to a plurality of slave devices (101, 102, 103). The modulation used includes a compensation of offsets in the master's system clock by symbol-wide frequency shifts that is particularly precise, fine and simple to implement. The system and method of the invention are particularly suitable for synchronizing a telecommunication cell network.

Abstract: In one embodiment, a method for blindly detecting low density activity includes receiving, by a first node from a second node, a signal and executing a joint message passing algorithm (JMPA) on the signal, where executing the JMPA includes jointly producing a decoded signal and an activity list in accordance with the decoded signal, and calculating a plurality of a priori probabilities in accordance with a plurality of log likelihood ratios (LLRs) corresponding to the signal and a plurality of decoded LLRs.

Abstract: A method and apparatus for processing a signal is present. Information is carried in a frequency hopping signal. The frequency hopping signal is sent to a gateway in a communications network through a satellite. The frequency hopping signal is unprocessed by the satellite to identify the information in the frequency hopping signal.

Abstract: This disclosure provides a network apparatus with communication ports, each connected to multiple channels, assigned a seed for eliminating the interference among the communication ports, and operable in a master or slave mode, each channel having a communication unit which comprises: an echo canceller, a near-end crosstalk (NEXT) canceller, a decision feedback equalizer, and a control unit configured for controlling the communication ports if the echo canceller and the decision feedback equalizer keep updating their filter coefficients according to the same symbol during a first pre-determined time-interval; wherein when more than two of the communication ports operate in the master mode, the control unit assigns different seeds to the more than two communication ports; and wherein when successive two of the communication ports operate in the slave mode, the control unit stops either the echo canceller or the NEXT canceller from updating their filter coefficients during a second pre-determined time-interval.

Abstract: Disclosed is a method and apparatus for reducing outbound interference in a broadband powerline communication system. Data is modulated on first and second carrier frequencies and is transmitted via respective first and second lines of the powerline system. A characteristic of at least one of the carrier signals (e.g., phase or amplitude) is adjusted in order to improve the electrical balance of the lines of the transmission system. This improvement in electrical balance reduces the radiated interference of the powerline system. Also disclosed is the use of a line balancing element on or more lines of the powerline system for altering the characteristics of at least one of the power lines in order to compensate for a known imbalance of the transmission system.

Abstract: An impedance stabilization network is disposed between a power supply and a mains entry of a power-line communication (“PLC”) device. The network may include: a first branch electrically coupled to a phase terminal of the power supply and electrically coupled to the phase line of the mains; a second branch electrically coupled to a neutral terminal of the power supply and electrically coupled to the neutral line of the mains; and a third branch electrically coupled to one or both of the phase terminal and the neutral terminal of the power supply and to the earth line of the mains.

Abstract: The systems and methods for a twisted pair transceiver with correlation detection includes a transceiver system operating on a cable. The transceiver system includes a receiver to obtain one or more data samples related to one or more encoded data symbols. The transceiver system further includes a first correlation filter to generate a first correlation output based on the one or more data samples, and a second correlation filter to generate a second correlation output based on the one or more data samples. The transceiver system further includes a detector. The detector compares the first correlation output with the second correlation output, generates an output data bit based on a comparison result, and sends the output data bit for data decoding.

Abstract: An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.

Abstract: A method including producing a first audio output from a first device; and producing an electromagnetic field from a coil of the first device. The electromagnetic field includes information for at least partially producing a second audio output from a second device. The information is configured to provide a relationship between the first and second audio outputs such that when the first audio output is a first acoustic sound, for the first acoustic sound to be configured to acoustically couple with second acoustic sound from the second device which based upon the second audio output, or when the first audio output is not acoustic sound, for the first audio output to be output from the first device for a headset of at least one first user.

Abstract: There is provided a display device comprising a processing unit, a display unit coupled to the processing unit and a near field communication unit coupled to the processing unit, wherein said processing unit is arranged to synchronize display messages to be displayed by the display unit with corresponding near field communication messages to be stored in the near field communication unit. Furthermore, a corresponding method of operating a display device is conceived. Furthermore, a corresponding computer program product is provided.

Abstract: A non-display signal encoding method cooperates with a matrix substrate including a plurality of electrodes. The electrodes cross each other and transmit a plurality of display signals and a plurality of non-display signals. The non-display signal encoding method comprises steps of: transmitting the non-display signals by at least one of the electrodes during a first time; and receiving by coupling at least a part of the non-display signals by at least an external object, wherein the non-display signals have at least three states, i.e. a first state, a second state, a third state or their any combination, and the first, second and third states are different from one another. A matrix substrate is also disclosed.

Abstract: A method of aligning a capacitive wireless power transmission system, the method comprises: providing a transmitter device having a capacitive conductor; positioning a receiver device having a capacitive conductor in proximity to the capacitive conductor of the transmitter device; and aligning the capacitive conductors of the transmitter device and the receiver device with one another using a display panel on the receiver device to optimize a transfer of power between the capacitive conductors.

Abstract: In a first aspect of the present invention, a wireless power transmission link is proposed, which while substantially maintaining resonant coupling condition (resonance frequency of the source resonant circuit is substantially equal to the resonance frequency of the load resonant circuit) detects a coupling condition of the wireless power transmission link. In a further aspect of the present invention, a wireless power transmission link is suggested, which while substantially maintaining resonant coupling condition (resonance frequency of the source resonant circuit is substantially equal to the resonance frequency of the load resonance circuit) controlling the operating state of the wireless power transmission link such, that the coupling condition of wireless power transmission link is substantially limited to the critical coupling condition.

Abstract: A resonance system that receives power from a power source section is configured by at least a primary resonance coil, a secondary resonance coil, and a load. The output frequency fo of the power source section is set to lie within one of the frequency ranges f1?fn?f2, f3?fo?f4, . . . , f2n-1?fo?f2n. The frequencies f1, f2, f3, f4, . . . , f2n-1, f2n (f1<f2<f3< . . . <f2n-1<f2n) are defined such that, if the input impedances of the resonant system at the time of supply of power of the frequencies f1, f2, f3, f4, . . . f2n-1, f2n (f1<f2<f3< . . . <f2n-1<f2n) to the resonant system are represented by Z1, Z2, Z3, . . . , Z2n-1, Z2n, the input impedances satisfy Z1=Z2, Z3=Z4, . . . , Z2n-1=Z2n.

Abstract: An accessory for a user equipment (UE) includes a housing and a near field communication (NFC) circuit. The housing is slid on the UE to become attached in a stored position relative to the UE. The NFC circuit is attached at a location on the housing and configured to become powered by inductive coupling to signals emitted by another NFC circuit within the UE to temporarily operate to transmit data to the other NFC circuit within the UE as the accessory NFC circuit passes over the other UE NFC circuit while the housing is being slid on the UE before reaching the stored position relative to the UE. While the housing is in the stored position relative to the UE, the NFC circuit may be configured to be inhibited from transmitting data to the other NFC circuit within the UE irrespective of whether the other NFC circuit within the UE is emitting signals to attempt to provide inductive coupling to the NFC circuit.

Abstract: Based on data acquired from a server via a predetermined network, a predetermined content is acquired. Further, based on data acquired from an information storage medium by performing near field communication with the information storage medium, a content that can be used in the same application as an application in which a content that can be acquired from the server via the predetermined network is used, or the same content is acquired.

Abstract: A method for inductively coupled communications is described. The method includes generating a retransmitted modulated signal that is stronger than a received signal from a first device. The method also includes generating a suppressed carrier signal from the retransmitted modulated signal for retransmission to the first device. The method further includes filtering a superimposed signal of the suppressed carrier signal on the received signal to attenuate modulation sidebands. The method additionally includes synchronizing to the first device based on the filtered signal.

Abstract: The data to be supposed to be processed by a microcontroller unit (MCU) of the near-field wireless communication module in a wireless device is processed by a digital signal processor (DSP) of the module instead of the MCU in order to expedite processing of commands.

Abstract: A control method in an in-vehicle apparatus capable of communicating with a wearable device and performing voice recognition, includes pairing with the wearable device via near field wireless communication, outputting a message to inquire whether to commence a voice recognition service using the paired wearable device, transmitting a request signal to open a channel for audio data to the wearable device, receiving audio data from the wearable device, executing a predetermined function corresponding to recognized voice based on the audio data, and transmitting a request signal to close the channel for the audio data to the wearable device.

Abstract: An information transmission method and equipment based on CoMP transmission are described. A user equipment determines a main transmission point. The user equipment determines RANK information of the main transmission point as well as channel state information corresponding to the RANK information. The user equipment sends the RANK information of the main transmission point and the channel state information to a network side equipment. The UE reports channel state information of limited RANK of every transmission point, channel state information of unlimited RANK of the main transmission point, and relative phase information between the transmission points, etc., to the network side equipment.

Abstract: A method and apparatus are described including receiving a first signal including first data in a first time slot of a first channel, receiving a second signal including second data in a second time slot of a second channel, determining a first pre-coding matrix, determining a second pre-coding matrix, applying the first pre-coding matrix to the first data to produce pre-coded first data, applying the second pre-coding matrix to the second data to produce pre-coded second data, generating a third signal by combining the pre-coded first data and the pre-coded second data and transmitting the third signal on the first channel and on the second channel. Also described are a method and apparatus including transmitting a first signal, receiving a second signal including a first training sequence and decoding the second signal by removing the first training sequence and removing the first signal.

Abstract: A method for processing data from an antenna array including a plurality of elements distributed on opposite sides of a central point is disclosed. The method includes determining an adjustment for a first signal associated with a beam and a first element of the plurality of elements. The first element is located on a first side of the central point of the antenna array. The method includes applying the determined adjustment to the first signal, and applying the determined adjustment to a second signal. The second signal is associated with the beam and a second element of the plurality of elements. The second element is located on a second side of the central point of the antenna array substantially a same distance away from the central point as the first element.