Abstract: A decoding device includes: a hard decision decoder generating a first decoding result by performing hard decision decoding of a polar code using an input signal, and generating a first error detection result by performing first error detection processing on the first decoding result; a soft decision decoder generating a second decoding result by performing successive decoding of a polar code on the input signal, obtained for each decoding step in the successive decoding, and generating a second error detection result by performing second error detection processing on a result obtained by updating the first decoding result using the second decoding result; a data selector selecting and outputting either the first decoding result or the result obtained by updating the first decoding result using the second decoding result; and a controller stopping the soft decision decoder when the data selector outputs the final decoding result.

Abstract: A fading assessment unit 34 assesses the degree of fading of a received radio wave. An SNR calculation unit 33 calculates an SNR value of a signal based on the radio wave. A communication mode determination unit 35 determines the communication mode of communication from a transmission side of the radio wave on the basis of the result of the assessment by the fading assessment unit 34 and the SNR value calculated by the SNR calculation unit 33.

Abstract: In connection with a frequency modulated (FM) communications system, exemplary aspects concern processing a desired channel of a frequency modulated (FM) signal based on an indication of an amplitude-level difference between a measured amplitude of a desired channel in the FM broadcast signal and a measured amplitude of another (possibly-interfering) channel. Based on such amplitude-level difference indication, an approach is selected for estimating the frequency spectrum of the other (possibly-interfering) channel in the FM broadcast signal. The selected approach may differ depending on whether the amplitude-level difference corresponds to an amplitude-level difference for which a frequency spectrum of the desired channel may be determined via a coarse estimate or via a less-coarse estimate of the frequency spectrum of the other channel.

Abstract: In one embodiment, a technique for Internet of Things (IoT) device location tracking using midambles is provided. A first wireless device in connection with an antenna array may receive one or more first data symbols of a data payload from a second wireless device using a first antenna state that assigns a radio path, used for location estimation, to a first antenna of the antenna array. Subsequent to identifying a first midamble of the data payload, the first wireless device may change the first antenna state to a second antenna state that assigns the radio path to a second antenna of the antenna array. The first wireless device may receive one or more second data symbols of the data payload using the second antenna state. The first wireless device may determine a location of the second wireless device based on location information determined using the radio path.

Abstract: A smart safe console system; the smart safe console system includes a smart safe console assembly having a smart safe body suitable to house at least one electronic device and an engager-button configured for controlling input and output communications to and from the electronic device when a vehicle hosting the smart safe console system is in use. The smart safe console system is useful for improving vehicle safety in relation to the use of electronic devices.

Abstract: A high-frequency filter includes a variable frequency filter, a fixed frequency filter, and switches. The variable frequency filter varies a passband in association with frequencies used in multiple communication band. The fixed frequency filter fixes a passband in association with a frequency used in a specific communication band different from the multiple communication bands. The switches are used to switch connection configuration to the variable frequency filter or the fixed frequency filter.

Abstract: A terminal supporting apparatus 10 supports at least one of two ends of a control cable having an inner cable and an outer cable. The terminal supporting apparatus 10 includes: a hub 12 attached to an end of the outer cable, and having a flange on an outer periphery thereof; a cushion member 14 disposed to surround the outer periphery of the hub, and being in contact with the flange at both a front surface and a rear surface of the flange; and a housing 17 having a housing part that houses the cushion member. When an angle formed between an axis of the housing part and an axis of the hub is varied in a range of 0.0° to 6.0°, a diagonal static spring constant of the cushion member in an axial direction thereof may be in a range of 350 to 600 N/mm.

Abstract: A method and a circuit are arranged for adapting a first reference value for generating a first bit stream from an input signal by a first amplitude adapting unit. The input signal comprises a first and a second signal. The first signal and the second signal form a baseband sum signal. A first non-linear component demodulates the input signal and outputs a demodulated input signal. The amplitude adapting unit outputs the first bit stream from the demodulated input signal on the basis of a first reference value. A reference-value adapting unit comprises a detection unit which detects the first and the second signal. Upon discontinuation of the first and second signals, an adjusting unit adjusts the first reference value to a basic reference value.

Abstract: An enclosure for use in a vehicle having an ignition system, for securely holding an electronic device and rendering it inaccessible during operation of the vehicle. The enclosure has a main part and a door. The door has an open position and a closed position and includes a device cradle for holding the electronic device. A device responsive switch is closed when the electronic device is located within the device cradle, and a door responsive switch is closed when the door is in the closed position. When the ignition is on, the door responsive switch and device responsive switch must both be closed for the vehicle to operate. A locking assembly holds the door in the closed position and is activated while the vehicle is in operation to physically prevent access to the electronic device while the vehicle is in operation.

Abstract: A method and apparatus for recording information from a plurality of mobile devices in an area, the method comprising listening for data packets from the plurality of mobile devices in a predetermined time period, creating a record for containing addresses and signal strength readings associated with the plurality of mobile devices, determining whether a data packet received during the predetermined time period is from a mobile device of the plurality of mobile devices, determining whether an address associated with the mobile device is recorded in the record, updating the record with the address and a signal strength reading associated with the mobile device, and updating the signal strength reading associated with the mobile device updating the record depending upon the number of times the record has been updated with a signal strength reading associated with the mobile device during the predetermined time period.

Abstract: An audio device capable of intelligently switching between multiple antennas is provided. The audio device receives a wireless signal by a default receiving antenna, determines signal quality metrics of the wireless signal received by various antennas, compares the signal quality metrics of the wireless signal received by the various antennas, and selects a receiving antenna from the various antennas to receive the wireless signal based on the comparison of the signal quality metrics of the wireless signal received by the various antennas.

Abstract: A system and method integrates signal filters in a multiband transceiver. A preferred embodiment comprises an amplifier with a first tunable capacitor coupled to a signal input and a tunable filter. The tunable filter comprises an input stage with a first pair of inductors arranged in a dipole configuration and a second tunable capacitor coupled in parallel to the first pair of inductors and an output stage inductively coupled to the input stage, the output stage includes a second pair of inductors also arranged in a dipole configuration and a third tunable capacitor coupled in parallel to the second pair of inductors. The inductors are realized using bond wire or any other high Q material. The first tunable capacitor, the second tunable capacitor, and the third tunable capacitor can be tuned using a master-slave tuning configuration to adjust the operating frequency of the amplifier and the tunable filter to enable frequency band compatibility with multiple communications protocols.

Abstract: A circuit division method for test pattern generation in which a computer performs processes of: acquiring, for each of a plurality of blocks included in a target circuit for test pattern generation, a first feature amount regarding a size of each block and a second feature amount regarding a function of the block; classifying the plurality of blocks into a plurality of groups so that blocks for which the acquired first feature amount is within a first predetermined range and the acquired second feature amount is within a second predetermined range belong to an identical group; and assigning, for each of the classified groups, each of the blocks included in the group to one of a plurality of divided circuits of a division number based on a ratio of the number of blocks included in the group to the division number by which the plurality of blocks are divided.

Abstract: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry with first and second ports that are coupled by switching circuitry to first and second antennas. A first receiver in the transceiver circuitry may be associated with the first port and a second receiver in the transceiver circuitry may be associated with the second port. An electronic device may be operated in a single receiver mode in which only one of the receivers is active to conserve power or a dual receiver mode in which signals from both antennas may be received in parallel to compare antenna performance. Based on antenna performance metrics, the electronic device may adjust the switching circuitry to ensure that an optimal antenna is being used.

Abstract: Methods, devices, and systems embodiments enable a multi-antenna mobile device to mitigate radio frequency (RF) radiation exposure to users. A processor may determine a distance between the multi-antenna mobile device and the select portion of the user and switch from using a first antenna that is closer to the select portion of the user to using a second antenna when the multi-antenna mobile device is close to the user. The signal strength of the first antenna may be compared to the signal strength of a second antenna of the multi-antenna mobile device, and the second antenna may be used instead of the first antenna when the signal strength of the first antenna is within a predetermined threshold of the signal strength of the second antenna. If acceptable signal quality is not obtained with the second antenna, the multi-antenna mobile device may switch back to the first antenna.

Abstract: A system and method for receiving signals using a receiver with antenna switching capability is provided. The receiver is configured to poll each antenna of the plurality of antennas and process the signals from each antenna. In addition, the receiver coordinates providing power to each antenna with the polling.

Abstract: Embodiments include a novel receiver architecture to optimize receiver performance in the presence of interference. In various embodiments, the presence of interference is detected, and the relative frequency location of the interference is detected. The relative frequency location specifies whether the frequency of the interference is high side (above the desired signal, i.e., at a higher frequency) or low side (below the desired signal). The receiver is configured based on the detected interference and relative location thereof. For a device such as a cellular phone that operates in a dynamic and changing environment where interference is variable, embodiments advantageously provide the capability to modify the receiver's operational state depending on the interference.

Abstract: A controlling device such as a remote control has programming for transmitting a signal response to a plurality of control environments, each environment including a signaling device. Each signaling device in receipt of the signal request sends a signal response having a unique ID which is chosen to be characteristically attenuated by the surroundings of the environment. Because the controlling device can only be in one environment at a given time, and given the attenuation characteristics of the signal response from each signaling device, only one signal response will be received by the controlling device in each environment. Location definitions associated with the received unique ID may be used by programming in the controlling device to recall saved devices states, commands sets, macros, and even to dynamically generate commands based on the location information.

Abstract: A system for expediting wireless connection establishment between wireless-enabled apparatuses. In at least one example implementation an apparatus may transmit discovery messages for discovering other apparatuses. The apparatus may receive one or more messages responding to the discovery message, and may determine whether any of the received responses satisfy a predetermined response criteria. If the apparatus determines that any of the received messages satisfy the response criteria, wireless connection establishment may be expedited between the apparatus and a source apparatus for each of the received messages that satisfy the response criteria. In an alternative scenario where a touch mode may be active in an apparatus that receives a message from at least one other apparatus, the apparatus may determine whether the message satisfies a predetermined criteria. If the message is determined to satisfy the criteria, the apparatus may expedite wireless connection establishment to the other apparatus.

Abstract: A controlling device such as a remote control has programming for transmitting a signal response to a plurality of control environments, each environment including a signaling device. Each signaling device in receipt of the signal request sends a signal response having a unique ID which is chosen to be characteristically attenuated by the surroundings of the environment. Because the controlling device can only be in one environment at a given time, and given the attenuation characteristics of the signal response from each signaling device, only one signal response will be received by the controlling device in each environment. Location definitions associated with the received unique ID may be used by programming in the controlling device to recall saved devices states, commands sets, macros, and even to dynamically generate commands based on the location information.

Abstract: A system for expediting connection establishment between apparatuses. In at least one example implementation, an apparatus may transmit discovery messages and may receive response messages. If any of the response messages are determined to satisfy predetermined response criteria, the apparatus may further determine if any of these response messages (e.g., the messages that were determined to satisfy the predetermined response criteria) are associated with apparatuses that satisfy selection criteria for the selection of multiple apparatuses that may, in some instances, operate together as a group. Apparatuses that are determined to satisfy the multiple selection criteria may then be selected, wherein connection establishment is expedited for the selected apparatuses.

Abstract: A system for selectively expediting connection establishment between apparatuses. In accordance with at least one embodiment of the present invention, an apparatus may sense a first change in the disposition of the apparatus, and may initiate device discovery based on the first sensed change. A determination may then be made in the apparatus as to whether another apparatus encountered by the apparatus during device discovery satisfies a predetermined response criteria. The apparatus may then select the other apparatus if it is determined that the other apparatus satisfies the predetermined response criteria.

Abstract: Antenna swapping methods for a wireless electronic device may include refraining from swapping antennas of the wireless electronic device for wireless communication with a network other than during a time period that is received at the wireless electronic device from the network. Related systems and devices are also described.

Abstract: A wireless communication device comprises a first antenna, a second antenna, a switch, and a balun. The first antenna and the second antenna transmit and receive signals. The wireless communication device can use only one antenna (the first antenna) or the two antennas (the first antenna and the second antenna) at the same time according to a comparison between received signal strength indications (RSSIs) of the antennas and a maximum input level of the wireless communication device.

Abstract: A diversity receiver comprises a plurality of receiving paths connected to a receiver circuit. Each of the receiving paths comprises an antenna receiving a signal, connected to a matching network connected to a receive amplifier. The receiver circuit is connected to a signal level comparison circuit for providing a relative comparison value indicating one of the receiving paths receiving the signal with a relative maximum strength. The signal level comparison circuit comprises a comparator circuit connected to the receiver circuit receiving a currently received signal level, and to a logic control unit being arranged to select one of the receive paths to provide the currently received signal to the receiver circuit.

Abstract: The present application discloses a method for reporting channel status information in a multi antenna wireless communication system. In more detail, the method includes: receiving a reference signal from a base station; calculating the optimum precoding matrix index (PMI), at which the intensity of a signal from the base station is maximized, on the basis of the reference signal: determining at least one interference PMI from the base station on the assumption that a plurality of interference PMIs corresponding to the optimum PIM are applied; and transmitting information on at least one determined interference PMI to the base station. Beams corresponding to the plurality of interference PMIs are orthogonal to the beams corresponding to the optimum PMI.

Abstract: An apparatus and a method for controlling power in a wireless communication system are provided. The method includes receiving interference information comprising a resource usage rate, from at least one neighboring BS, calculating a throughput variance amount, which is expected if the serving BS changes power, experienced by the at least one neighboring BS, by using the interference information, calculating a throughput variance amount, which is expected if the serving BS changes power, of at least one Mobile Station (MS) having access to the serving BS, and controlling power for the at least one MS by using the throughput variance amount experienced by the at least one neighboring BS and the throughput variance amount of the at least one MS. The interference information represents a throughput variance amount generated in the at least one neighboring BS when the serving BS changes the power.

Abstract: An electronic messaging device includes a receiver configured to receive a message at one of a first operational frequency and second operational frequency. The messaging device can operate using a time synchronous protocol and can receive commands through over-the-internet-programming (OTIP) and over-the-air-programming (OTAP).

Abstract: The invention relates to a multichannel radio-frequency receiver (1) for electromagnetic waves, having a radio-frequency analogue section (2) which has an input (3) for an electrical signal of a receiving device (4), and having an lower-frequency section (8, 9) which is connected downstream from the radio-frequency analogue section (2) and has a plurality of parallel channels (6b, 6c; 7b, 7c) for respectively different signal strengths and an evaluation circuit, in which a signal divider (5) is provided in the radio-frequency analogue section (2) in order to split the signal in accordance with a predeterminable division ratio into signal elements which can be supplied to radio-frequency analogue channels (6a, 7a), downstream from which the channels (6b, 6c; 7b, 7c) of the lower-frequency section (8, 9) are respectively connected, and the channels (6b, 6c; 7b, 7c) of the lower-frequency section (8, 9) each have an evaluation circuit for detection of the phase and amplitude of the respective signal element.

Abstract: The present invention is a system for increasing Signal-to-Noise Ratio (SNR) in a wireless communication system comprising a plurality of antennas each antenna providing a signal, a device for selecting a subset of signals provided by the plurality of antennas, a maximum ratio combiner for summing the selected subset of signals provided by the plurality of antennas, and a decision device for measuring the selected subset of signals against a predefined threshold. The device for selecting the subset of signals is coupled to the plurality of antennas. The maximum ratio combiner is coupled to the selected subset of signals and the decision device for measuring the selected subset of signals against a predefined threshold. The decision device is coupled to the selecting device such that one selected signal of the selected subset of signals is replaced by an unused signal provided by the plurality of antennas.

Abstract: A complex condition determination unit is provided, having an error-pulse switching determination unit which outputs, as error-pulse determination information, information indicating whether an accumulated value of the number of error pulses is equal to or greater than a predetermined error-pulse threshold value; a CNR (carrier to noise ratio) modulation scheme determination unit which outputs, as CNR determination information, a modulation scheme determined in accordance with CNR information indicating the CNR of the received signal; an RSL (receive signal level) modulation scheme determination unit which outputs, as RSL determination information, a modulation scheme determined in accordance with RSL information indicating the RSL of the received signal; and a complex modulation scheme determination unit which determines the modulation scheme for the transmission source, in accordance with the error-pulse determination information, the CNR determination information, the RSL determination information, and the

Abstract: A reconfigurable wireless transceiver and method of use are disclosed. As one example, a reconfigurable wireless transceiver is disclosed, which includes a transmitter unit, a plurality of receiver units, and a processing unit coupled to the plurality of receiver units. A first receiver unit of the plurality of receiver units receives a first signal at a first frequency, and determines a strength level of the first signal. A second receiver unit of the plurality of receiver units searches for a second signal at a second frequency, detects the second signal at the second frequency, and determines a strength level of the detected second signal. The processing unit determines if the strength level of the detected second signal is greater than a predetermined value, and enables the second receiver unit to receive a third signal at substantially the second frequency, if the strength level of the detected second signal is greater than the predetermined value.

Abstract: The suitability of a fixed or current mobile operating location for the receiver (19) in a data memory (13, 15) for picking up the consumption data (12) transmitted by a data radio channel in a wireless local data capture system (11) from consumption points (14) to a data memory (13, 15) can easily and reliably be qualitatively assessed in situ or for the purpose of remote diagnosis by virtue of a channel scan being initiated and the memory receiver (17) performing an RSSI measurement, which is preferably presented as a histogram (20) against current channel use. This renders permanent sources of interference and link budget problems in the data radio (particularly UHF) channel and also temporary sources of interference and collision problems in this channel identifiable and thereby avoids costly receiver location changes, without use of radio-specific specialist personnel, after a site has previously been selected for the receiver installation only empirically but inexpediently.

Abstract: A method for initiating a security relationship by a first communication device, wherein the first device communicates with a number of other communication devices, selects, in dependence on the result of the communicating step, one of the other devices, and initiates the negotiation of a security relationship with that selected device.

Abstract: A broad band packet radio communication system is characterized by the carrier sense multiplexing connection method operated on a harsh frequency arrangement where an occupied band width of a modulation transmission/reception wave and a modulation side lobe are wide and the frequency channel interval is narrow. It is possible to improve the reception adjacent channel interference characteristic among a plurality of terminals belonging to the respective cells existing in the vicinity of adjacent frequency cell boundary area. The RSSI system is subjected to a narrow-band channel filtering (a narrow-band filter (BPF or LPF) having a band narrower than one-channel occupied band width) while the reception/demodulation system is subjected to a wide-band channel filtering (a wide-band filter (BPF or LPF) having a pass band equal to or wider than the one-channel occupied band width).

Abstract: A system including a diversity module and an antenna selection module. The diversity module is configured to measure (i) a first signal-to-noise ratio and a first error rate associated with a first antenna, and (ii) a second signal-to-noise ratio and a second error rate associated with a second antenna. The antenna selection module is configured to select the first antenna or the second antenna by comparing (i) the first signal-to-noise ratio to the second signal-to-noise ratio, and (ii) the first error rate to the second error rate.

Abstract: A wireless communication terminal includes an antenna selecting unit that selects, for each packet, an antenna for use in receiving signals from among a plurality of a plurality of antennas; a packet-destination judging unit that judges whether a packet obtained by demodulating a signal received by the receiving antenna selected by the antenna selecting unit is destined for the wireless communication terminal; and a stand-by-antenna determining unit that determines a stand-by antenna for use in receiving a packet to be received next based on a result of selection made by the antenna selecting unit and a result of judgment made by the packet-destination judging unit.

Abstract: A controlling device such as a remote control has programming for transmitting a signal response to a plurality of control environments, each environment including a signaling device. Each signaling device in receipt of the signal request sends a signal response having a unique ID which is chosen to be characteristically attenuated by the surroundings of the environment. Because the controlling device can only be in one environment at a given time, and given the attenuation characteristics of the signal response from each signaling device, only one signal response will be received by the controlling device in each environment. Location definitions associated with the received unique ID may be used by programming in the controlling device to recall saved devices states, commands sets, macros, and even to dynamically generate commands based on the location information.

Abstract: A method for communication includes receiving in a receiver signals, which include one or more dedicated reference signals, that are transmitted from a transmitter over a communication channel in multiple blocks. The signals in each block, including the dedicated reference signals, are transmitted on a respective group of subcarriers over a respective time interval and are precoded using a respective precoding scheme that maps the signals onto multiple antenna ports of the transmitter. Based on the received signals, feedback is computed in the receiver with respect to the communication channel in each of multiple spectral sub-bands, and the feedback for the multiple spectral sub-bands is reported to the transmitter. One or more parameters of the communication channel are estimated jointly over the dedicated reference signals included in each of the spectral sub-bands for which the feedback is reported. The signals are decoded based on the estimated parameters.

Abstract: A receiving method and apparatus in a Multiple-Input Multiple-Output (MIMO) communication system are provided. The method includes receiving reception signals through a plurality of reception antennas, grouping symbols corresponding to the reception signals, respectively, into a preset number of groups, and rearranging symbols of the respective groups, transforming the reception signals by applying QR decomposition to the reception signals, sequentially canceling interference due to each of total possible candidate symbols for a first symbol based on an order of the rearranged symbols in the transformed reception signals, determining a portion of the total possible candidate symbols to be a candidate symbol set for each remaining symbol, except for the first symbol, using the interference-canceled reception signal, and determining log-likelihood ratio values of the first symbol, which are to be used upon decoding the received signals, using candidate symbols for the first symbol and each remaining symbol.

Abstract: A system and method for estimating a channel in a wireless receiver is disclosed. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed according to the method.

Abstract: The described embodiments relate generally to methods, systems and computing devices, including at least a mobile device, for ordering a discovered device list according to a Received Signal Strength Indication (RSSI) of each device in the discovered device list. Thus, the discovered device list has at the top of the list the device that has the highest RSSI, with the remaining devices in the discovered device list presented in descending order of RSSI.

Abstract: A power control method in a mobile station having at least two antennas. The mobile station operates in a receive-diversity state in which the mobile station wirelessly receives communications with multiple antennas. The mobile station determines a relative gain of operating in the receive-diversity state versus operating in a non-receive-diversity state in which the mobile station wirelessly receives communications with one antenna rather than with multiple antennas. The mobile station uses the determined gain as a basis to set one or more power characteristic(s). The one or more power characteristic(s) may include (i) an initial power control setpoint for use by the mobile station to evaluate strength of received transmissions and (ii) an initial power level at which a remote entity transmits to the mobile station.

Abstract: A circuit includes, in part, a receiver, a received signal strength indicator (RSSI), and an oscillator. The receiver receives an incoming signal and an oscillating signal. The RSSI is responsive to the receiver and generates an output signal representative of the strength of the incoming signal. The oscillator receives different biasing conditions in response to different outputs of the RSSI. The oscillator generates the oscillating signal received by the receiver. The oscillator receives a first biasing condition when the incoming signal is detected as having a strength lower than or equal to a predetermined threshold value and a second biasing condition when the incoming signal is detected as having a strength higher than the predetermined threshold value. The first biasing condition may be defined by a first current, and the second biasing condition may be defined by a sum of the first current and a second current.

Abstract: Methods are disclosed for transmitting a plurality of information bits using resource selection on multiple antennas. In one or more embodiments, the methods include: selecting a first and a second orthogonal resource from an allocation of more than two orthogonal resources according to the state of the plurality of information bits; transmitting a first symbol in a first symbol instant on a first antenna using the first orthogonal resource; and transmitting a second symbol in the first symbol instant on a second antenna using the second orthogonal resource. In some embodiments, the first and second orthogonal resources are different and the first symbol is either a reference symbol or a modulation symbol.

Abstract: A circuit includes, an attenuator responsive to an input signal and a feedback signal, a variable gain low-noise amplifier responsive to the attenuator and to the feedback signal, a tracking filter, a frequency converter, and an RSSI responsive to the variable gain amplifier to generate an output signal to which the feedback signal is responsive. The frequency converter may be a mixer having a single-ended input and a differential output. The circuit may further include an analog baseband block responsive to the mixer to filter out high frequency signals. The tracking tuner performs bandpass filtering operation on the output signals of the variable gain low-noise amplifier.

Abstract: The invention relates to a method, computer, computer program and computer program product for speech quality estimation. The method comprises the steps of: determining a coding distortion parameter (QCOD), a bandwidth related distortion parameter (BW) and a presentation level distortion parameter (PL) of a speech signal; extracting a first coefficient (?l) and a second coefficient (?2), the first coefficient and the second coefficient being dependent on the coding distortion parameter; and calculating a signal quality measure (Q), where the signal quality measure is QCOD+?1BW+?2PL using the signal quality measure in a quality estimation of the speech signal.

Abstract: An object of the invention is to receive, with a high sensitivity, a radio signal transmitted within a short time before a capsule endoscope reaches the stomach of a subject and acquire, in a satisfactory state, information on the interior of the subject such as image data picked up by the capsule endoscope. The receiving apparatus according to the invention includes a plurality of receiving antennas including a specified receiving antenna for receiving a radio signal from a capsule endoscope before the stomach is reached, a switching controller, an arrival determining unit and a mode switching unit. The switching controller performs a control operation for switching to and maintaining the receiving antenna in an initial mode or a control operation for switching to the receiving antennas in a normal mode. The arrival determining unit determines whether the capsule endoscope has reached the stomach or not.

Abstract: An RF receiver section includes an adjustable antenna assembly, a low noise amplifier module, and a down conversion module. The adjustable antenna assembly is configured to provide a first receive antenna structure and a second receive antenna structure. The first and second receive antenna structures receive an inbound wide bandwidth RF signal that includes an interferer RF signal component and a desired inbound RF signal component. The effective polarization of at least one of the first and second receive antenna structures is adjusted to reduce signal strength of the interferer RF signal component.

Abstract: In one embodiment, the present invention includes a system that having a low noise amplifier (LNA) to receive and amplify a radio frequency (RF) signal, a mixer to receive and downconvert the RF signal to a second frequency signal, a filter to receive and filter the second frequency signal, a demodulator to receive and demodulate the filtered second frequency signal to output demodulated data, and a quality detector to detect a quality of the demodulated data and output a quality indicator based on the data quality. In addition, the system can include a controller coupled to the filter to cause a state of the filter to be stored into a storage responsive to the quality indicator.