50th week of 2009 patent applcation highlights part 34 |
Patent application number | Title | Published |
20090304114 | METHOD FOR DECODING DIGITAL INFORMATION ENCODED WITH A CHANNEL CODE - The performance of multiple-input multiple-output (MIMO) systems, employing coding with multiple antennas depends heavily on the demapper algorithm which is used for MIMO detection. Soft-output demappers lead to better bit error rate (BER) performance compared to hard-decision demappers, but have a higher implementation complexity. The algorithm, proposed in this paper, relies on low-complexity harddecision MIMO detection. The reliability information for the received bits used to compute log-likelihood ratios is based on an estimate of the average bit error rate which is for example derived from the corresponding channel state information only. The algorithm is applicable to any hard-decision MIMO detector. As an example, we describe the application of the scheme to a linear MMSE detector and to sphere decoding with early termination. | 2009-12-10 |
20090304115 | DECODING MEDIA CONTENT AT A WIRELESS RECEIVER - A wireless receiver ( | 2009-12-10 |
20090304116 | HARDWARE ENGINE TO DEMOD SIMO, MIMO, AND SDMA SIGNALS - An apparatus including a configurable demodulation architecture which includes a control module and a demodulation engine. The control module includes a set of one or more control fields. The demodulation engine includes a spatial whitening module, a Minimum Mean Square Estimation (MMSE) module, at least a first Maximal Ratio Combining (MRC) module, and at least one multiplexer. Further, the multiplexer is coupled to the instruction module and controlled based on the control fields to select at least one of the MMSE module or MRC module. | 2009-12-10 |
20090304117 | CONCATENATED CODING/DECODING IN COMMUNICATION SYSTEMS - A method and apparatus for improving performance in communication systems is provided. In one implementation received encoded data is decoded using an inner rateless decoder to produce a series of decoded rateless outputs. The series of decoded rateless outputs is combined to produce a block, and the block is decoded using an outer block decoder. In another implementation, encoded data for a data block encoded with a rateless code is received. It is determined that an initial predetermined amount of mutual information for the data block has been received, the initial predetermined amount being an amount expected to allow decoding of the received encoded data. Additional encoded data for the data block is received. It is determined that an extra predetermined amount of mutual information for the data block has been received beyond said initial predetermined amount of mutual information. | 2009-12-10 |
20090304118 | DIVERSITY RECEIVING DEVICE - A diversity receiving device includes a plurality of mixers which are provided to correspond to antennas arranged so as to be separated from each other and each of which multiplies a radio frequency signal output from the corresponding antenna by a local oscillation signal to modulate the radio frequency signal into an intermediate frequency signal; a reference signal source that generates a reference signal; a plurality of local oscillating units which are provided to correspond to the plurality of mixers, and each of which generates a local oscillation signal having a frequency corresponding to the phase of the reference signal and supplies the local oscillation signal to the corresponding mixer; a filter circuit that is provided between the reference signal source and the plurality of local oscillating units and changes the phase of the reference signal supplied to all the local oscillating units or the local oscillating units other than one local oscillating unit according to a predetermined passband frequency; an adder that combines the intermediate frequency signals output from the mixers; and a phase control circuit that detects a phase difference between the intermediate frequency signals output from the plurality of mixers and controls the passband frequency of the filter circuit such that there is no phase difference between the intermediate frequency signals. | 2009-12-10 |
20090304119 | RECEIVING APPARATUS, RECEIVING METHOD AND WIRELESS COMMUNICATION SYSTEM - There is provided a receiving apparatus including a plurality of antennas, a power detection unit to detect received power of respective received signals received by the plurality of antennas, and a plurality of reception processing units that includes a first reception processing unit to perform reception processing with a first bit width on a received signal received by any one of the plurality of antennas and a second reception processing unit to perform reception processing with a second bit width smaller than the first bit width on a received signal detected by the power detection unit as having lower received power than the received signal to be processed by the first reception processing unit. | 2009-12-10 |
20090304120 | WIRELESS COMMUNICATION SYSTEM WITH IMPROVED BROADCAST COVERAGE - Techniques to transmit data with cyclic delay diversity and pilot staggering are described. For cyclic delay diversity, OFDM symbols having different cyclic delay durations are generated. The cyclic delay durations for the OFDM symbols may be selected to be time varying with respect to the cyclic delay durations for OFDM symbols transmitted by a neighboring base station. An FDM pilot is generated and multiplexed on multiple sets of subbands in different symbol periods. Waveforms for a second radio technology (e.g., W-CDMA) may be generated for data to be transmitted with this radio technology. The OFDM symbols are multiplexed onto time slots used for OFDM, and the waveforms for the second radio technology are multiplexed onto time slots used for this radio technology. One or multiple modulated signals may be generated based on the multiplexed OFDM symbols and waveforms. Each modulated signal is transmitted from a respective antenna. | 2009-12-10 |
20090304121 | RECEIVER ARCHITECTURE - A wireless receiver uses a joint detection Viterbi (JDV) algorithm to demodulate a signal that has a desired signal component and an interference signal component. The desired signal component includes a training sequence and at least one data field. The training sequence and a corresponding portion of the interference signal component is demodulated using the JDV algorithm to evaluate possible transmitted training sequences and interference signal sequences, and channel estimations for the desired signal component and the interference signal component are generated. The at least one data field is demodulated according to the JDV algorithm using the channel estimations as initial channel estimates for the JDV algorithm. | 2009-12-10 |
20090304122 | RECEIVER ARCHITECTURE - A receiver adaptively selects between a joint detection Viterbi demodulator and a second Viterbi demodulator to demodulate a received signal based on at least one characteristic of the received signal. The joint detection Viterbi demodulator jointly demodulates a desired signal component and an interference signal component of the received signal, and the second Viterbi demodulator demodulates the desired signal component without demodulating the interference signal component. | 2009-12-10 |
20090304123 | APPARATUS AND METHOD FOR DETECTING SIGNAL IN MIMO SYSTEM - An apparatus and method for detecting a signal in a Multiple-Input Multiple-Output (MIMO) system are provided. The method includes filtering each stream of a received signal, acquiring a new search space by acquiring a set of candidates having reliability greater than a threshold with respect to each filtered stream, and detecting a signal for each stream of the new search space. | 2009-12-10 |
20090304124 | REDUCED-COMPLEXITY MULTIPLE-INPUT, MULTIPLE-OUTPUT DETECTION - A wireless receiver detects signals generated with a multiple-input, multiple-output (MIMO) transmitter. The receiver applies maximum-likelihood detection (MLD) for soft-output signal detection, where an MLD exhaustive search across all candidate vectors is performed recursively by computing and accumulating the differences between, for example, the Euclidean metrics of consecutive candidate tests. Difference terms used for the accumulation are also calculated recursively. An ordering of candidates, such as by a triangular-waveform shaped ordering, is employed such that only one candidate variable is changed between any two consecutive candidate evaluations, leading to a reduced set of computations. | 2009-12-10 |
20090304125 | ITERATIVE RECEIVER AND METHOD FOR DETECTING TRANSMITTED SIGNAL THEREOF - In an iterative receiver, a signal detector estimates interference from an estimated transmitted signal, and cancels the estimated interference from a signal received through an antenna. A decoder performs channel decoding by using the interference cancelled received signal. A soft decision unit performs a soft decision process on the transmitted signal by using the channel decoded signal. A channel estimator estimates a channel by using the soft decision applied transmitted signal and the received signal. A covariance estimator estimates covariance on the sum signal of the interference and noise by using the soft decision applied transmitted signal, the received signal, and the estimated channel. A hard decision unit determines the transmitted signal by using the channel decoded signal after interference cancellation, channel decoding, estimated transmitted signal updating, channel estimation, and covariance estimation are iterated a number of times. | 2009-12-10 |
20090304126 | OFDM Communication Device and Guard Interval Length Decision Method - Even if background noise is present, it is possible to control a guard interval length so that a minimum required SINR can be obtained. An OFDM communication device ( | 2009-12-10 |
20090304127 | NARROW BAND RECEIVER - An RF receiver comprises a signal processor arranged to perform a method of decoding data contained within a signal that comprises a set of slots, at least one said slot comprising a preamble portion and a payload portion and being transmitted at a predetermined transmission frequency. The signal processor is arranged to perform a first process to derive timing data from the preamble portion and perform a second process to extract information from the payload portion, the second process being triggered from said timing data derived from the first process. The preamble portion comprises at least a first sequence of data and a second sequence of data, and the second sequence is the inverse of the first sequence. In preferred embodiments the first process comprises identifying a transition between said first and second sequences of data and deriving said timing data from the identified transition. | 2009-12-10 |
20090304128 | Packet Detection Apparatus and Method, Wireless Communication Apparatus and Method, and Computer Program - A packet detection apparatus detects a packet from a received signal by using a preamble containing an established, repeating training sequence. A first autocorrelation calculator computes a first autocorrelation of the received signal over a first interval. A first determining unit determines packet discovery by comparing the first autocorrelation to a first autocorrelation threshold value. A second autocorrelation calculator computes a second autocorrelation of the received signal over a second interval equivalent to the interval length for packet discovery announcement. A second determining unit determines packet discovery announcement by comparing the second autocorrelation to a second autocorrelation threshold value lower than the first autocorrelation threshold value. | 2009-12-10 |
20090304129 | OSCILLATING APPARATUS, RECEIVING APPARATUS, AND OSCILLATION CONTROL METHOD - In an oscillating apparatus, a detection unit detects a frequency offset between an input signal and a reference signal. A code generation unit specifies a relationship among a code having a predetermined number of bits, the frequency offset, and a voltage to be applied to a voltage-controlled oscillator by a DAC, in accordance with a frequency offset detection state of the detection unit. The code generation unit also generates a frequency offset correction code having a predetermined number of bits in accordance with the specified relationship. The DAC applies the voltage to the voltage-controlled oscillator, in accordance with the relationship described above and the code generated by the code generation unit. The voltage controlled oscillator outputs an oscillator signal having an oscillation frequency corresponding to the voltage applied by the DAC. | 2009-12-10 |
20090304130 | COMBINED DUAL FEED-FORWARD AND FEEDBACK ANALOG AND DIGITAL AUTOMATIC GAIN CONTROL FOR BROADBAND COMMUNICATION - An embodiment is a method and apparatus to process an input signal. An analog automatic gain control (AGC) processor controls an analog adjustable gain of the input signal using a feedback mechanism. The analog AGC processor generates a first signal. A processing circuit transforms the first signal into a second signal. A digital AGC processor controls a digital adjustable gain of the second signal using a feed-forward mechanism. | 2009-12-10 |
20090304131 | LOW COST NOISE FLOOR REDUCTION - A method and system to reduce the noise floor of a communications system is disclosed. The system may be incorporated into any device that provides binary samples from a datastream, such as a cordless telephone system. The system is configured to determine a number of bits of the binary samples that are affected by noise. The system is then able to remove the noise by setting those bits to a fixed value. The fixed value may depend on whether the sample is positive or negative. The value to set may be chosen so that the least significant bits of each sample come as close as possible to 0 for that particular numerical representation system. The system can be integrated with other known signal processing methods. | 2009-12-10 |
20090304132 | Method and Apparatus for Efficient Estimation of Interference in a Wireless Receiver - Methods and apparatus for determining an impairment covariance matrix for use in an interference-suppressing CDMA receiver are disclosed. In several of the disclosed embodiments, precise information regarding signal propagation delays is not needed. An exemplary method includes the selection of a plurality of processing delays for processing a received CDMA signal. Net channel coefficients for the processing delays are estimated and used to calculate an impairment covariance matrix. The impairment covariance matrix is calculated as a function of the estimated net channel coefficients and the processing delays, without estimating a propagation medium channel response for the received signal. | 2009-12-10 |
20090304133 | JAMMER CANCELLER FOR POWER-LINE COMMUNICATION - An embodiment is a method and apparatus to cancel signal interference. A jammer remover removes an interfering signal from an input signal to generate a jammer-canceled signal using an adaptive filtering procedure. A jammer detector detects interference caused by the interfering signal. | 2009-12-10 |
20090304134 | DEVICE AND METHOD OF SYNCHRONIZING SIGNALS - A first input signal is received at a data input of first synchronizer, the first data input to be synchronized to a clock. A second input signal is received at a data input of second synchronizer, the second signal to be synchronized to the clock. Transitions are prevented from being received at a clock input of the first synchronizer and from being received at a the clock input of the second synchronizer in response to the first input signal having the same logic value as a first output signal at an output of the first synchronizer and the second input signal having the same logic value as a second output signal at an output of the second synchronizer. | 2009-12-10 |
20090304135 | SYNCHRONOUS CLOCK GENERATION APPARATUS AND SYNCHRONOUS CLOCK GENERATION METHOD - A synchronous clock generation apparatus including a multiplier for multiplying a horizontal synchronizing signal by a horizontal synchronizing pulse signal to generate multiplication data, a gain variable digital LPF for extracting only DC components from the multiplication data and capable of performing gain adjustment, and a controller for calculating gain adjustment data, lock center frequency setting data, and LPF gain adjustment data based on the correction data. The controller detects an amount of deviation from the lock center frequency and an amount of variation, displaces the lock center frequency and shifts the lock range along the frequency axis to enlarge the apparent lock range when the amount of deviation is large, and reduces the gain to improve lock precision when the amount of variation is small, without expanding bits in the circuit configuration. | 2009-12-10 |
20090304136 | SYNC DETECTOR AND COMMUNICATION APPARATUS SYNTHESIZING CORRELATION VALUES - A sync detector includes a correlation computing unit configured to receive signal values corresponding to respective sample points and to compute auto-correlation of the received signal values between sample points of interest and sample points that are situated at a distance equal to a constant number of sample points from the sample points of interest, a correlation value synthesizing unit configured to receive auto-correlation values corresponding to respective sample points obtained by the correlation computing unit and to synthesize the auto-correlation values with respect to at least two sample points among sample points that are spaced apart by the constant number of sample points thereby to compute a synthesized correlation value, and a peak-point detecting unit configured to detect a position of a sample point corresponding to a largest synthesized correlation value among synthesized correlation values corresponding to respective sample points obtained by the correlation value synthesizing unit. | 2009-12-10 |
20090304137 | Package Serving to Accommodate a Case Containing Radioactive - The invention concerns a cask ( | 2009-12-10 |
20090304138 | SHIFT REGISTER AND SHIFT REGISTER UNIT FOR DIMINISHING CLOCK COUPLING EFFECT - A shift register and a shift register unit for diminishing clock coupling effect are introduced herein. Each stage shift register unit includes at least one pull-up driving module, a pull-up module, at least one pull-down module and a pull-down driving module. Before a waveform of either a first clock signal or a second clock signal employed by the pull-up module transits into a rising edge, the pull-down driving module employs a first periodic signal to turn on the pull-down module in advance for a specific period, and/or before the waveform of the first or second clock signal employed by the pull-up module transits into a falling edge, the pull-down driving module employs a second periodic signal to turn off the pull-down module in advance for a specific period. Accordingly, the pull-down module can gain a sufficient capability against the clock coupling effect so as to optimize the waveform outputted from the shift register unit. | 2009-12-10 |
20090304139 | SHIFT REGISTER - A shift register includes a plurality of register units cascade-connected with each other. Each register unit includes a pull-up circuit, a pull-up driving circuit, a pull-down circuit, and a pull-down driving circuit. The pull-up circuit coupled to a first clock signal is used for providing an output signal. The pull-up driving circuit turns on in response to a driving pulse from a previous register unit and a second clock signal, and turns off in response to a third clock signal. The pull-down driving circuit which is coupled to an input node of the pull-down circuit, turns on in response to a first clock signal, and turns off in response to a the first clock signal or output of the pull-up driving circuit. | 2009-12-10 |
20090304140 | ASYNCHRONOUS PING-PONG COUNTER AND THEROF METHOD - An asynchronous ping-pong counter is disclosed. The asynchronous ping-pong counter comprises a first asynchronous counter, a second synchronous counter, and a controller, the asynchronous ping-pong counter operates between a first state and a second state. In the first state, the first asynchronous counter counts a first number of clock edges of a fast clock signal, and the second asynchronous counter holds a first counter output value. In the second state, the second asynchronous counter counts a second number of clock edges of the fast clock signal, and the first asynchronous counter holds a second counter output value. The controller determines a state transition based on a sampling of a slow clock signal by the fast clock signal. | 2009-12-10 |
20090304141 | X-Ray CT Apparatus - The photon counting type detector | 2009-12-10 |
20090304142 | CT SCANNER WITH SCATTER RADIATION CORRECTION AND METHOD OF USING SAME - A CT scanner with scatter correction device and a method for scatter correction are provided. The method of correcting CT images from artifacts caused by scattered radiation comprises affixing to the non-rotating frame of the CT gantry a plurality of shields for shielding some of the CT detector elements from direct X ray radiation, while allowing scattered radiation to arrive at said shielded elements; measuring scatter signals from said shielded elements, indicative of scattered radiation intensity; and correcting for scatter by subtracting scatter intensity values estimated from said measured scatter signals from signals measured by unshielded detector elements. | 2009-12-10 |
20090304143 | Non-invasive method and apparatus to locate incision site for spinal surgery - A non-invasive means and method locates a target spinal segment on a patient prior to surgery. An apparatus comprises a frame; a plurality of laser diodes projecting planar beams and mounted on the perimeter of the frame; a radio-opaque cable attached to the frame at the location of a laser diode; optionally, a weight is attached to the cable; optionally a rod extends from the frame perimeter; and optionally a bombsight is included within the frame marked with crosshairs. The method comprises the steps of marking a patient's skin; placing the frame on the patient; turning on the laser diodes; rotating the frame until the until a line of visible light is perpendicular to the patient's spine; aligning the cable with the planar laser beam; providing an X-ray source; aligning the X-ray source with the planar laser beam and obtaining an X-ray. | 2009-12-10 |
20090304144 | Computed tomography device - A computer tomography device is provided. The computer tomography device includes a rotating part and a stationary part. The rotating part has an X-ray tube for radiographing an object to be examined with X-rays and a detector for detecting the X-rays transmitted through the object. A stationary part has a data processing device for evaluating the detected measuring results, and a transmitter for supplying the X-ray tube and/or the detector and other rotating consumers with supply voltage by contactless transmission of electric power between the stationary and the rotating part. The transmitter is designed for contactless data transmission between the stationary part and the rotating part in addition to the contactless transmission of electrical power. | 2009-12-10 |
20090304145 | COMPUTER TOMOGRAPHY APPARATUS - A computer tomography apparatus ( | 2009-12-10 |
20090304146 | MAMMOGRAPHY APPLIANCE - To permit a compact and structurally simple design of a mammography appliance, an irradiation unit is secured on a C-arm, which lies in a swivel plane that is perpendicular to a horizontal axis. In this way, only slight mechanical leverages act on the support arm. At the same time, the C-arm design creates a free space, which is used in particular also for the arrangement of a display and/or control panel and for the arrangement of a biopsy unit. | 2009-12-10 |
20090304147 | X-RAY MAMMOGRAPHY/TOMOSYNTHESIS OF PATIENT'S BREAST - A breast x-ray system and method using tomosynthesis imaging in which the x-ray source generally moves away from the patient's head. The system may include an operation mode in which it additionally takes mammogram image data. | 2009-12-10 |
20090304148 | Dental Computer Tomographic Imaging - This invention directed to a computer tomography imaging apparatus designed for dental use as well as to methods realizable by it, especially to a method for relative positioning of the imaging means and the patient for imaging. A relevant feature of the computer tomography imaging device according to the invention is an arm construction consisting of turnable arm parts. The use of the construction enables implementation of, particularly, a so-called Cone Beam computer tomography apparatus (CBCT) as lighter, and more inexpensive realization of it, than has been the case regarding CT devices of prior art, especially when thinking of their use in odontology. | 2009-12-10 |
20090304149 | X-RAY DETECTOR IMAGING WITH POLYCHROMATIC SPECTRA - An x-ray detector has a sensor ( | 2009-12-10 |
20090304150 | SLIT-SLAT COLLIMATION - This invention is directed to a collimator and collimation techniques. Specifically, the invention is directed to a collimator and method for collimation wherein the collimator combines the resolution and sensitivity properties of pinhole Single Photon Emission Computed Tomography (SPECT) imaging with the 2D complete-sampling properties of fan-beam collimators. | 2009-12-10 |
20090304151 | Radiographic image data correction method and apparatus and radiography apparatus - Offset correction based on offset correction data is performed on radiographic image data that have been read out from a radiation image detector, and the offset correction data are updated. In the offset correction method, correction data for low-frequency components and correction data for high-frequency components, as the offset correction data, are generated based on offset image data that have been read out from the radiation image detector while the radiation image detector is not irradiated with radiation. Further, the correction data for low-frequency components and the correction data for high-frequency components are separately updated. | 2009-12-10 |
20090304152 | Method And Apparatus For Tagging And Identifying A Target - A method and apparatus for identifying and tagging a target, such an individual or an item, are described that provide an improved mechanism for identifying the target without alerting the target. In this regard, a method and apparatus can irradiate the target so as to create a radioisotope signature for the target. By thereafter monitoring the radioisotope signature, the target can be identified and tracked in a covert manner. | 2009-12-10 |
20090304153 | PATIENT POSITIONING IMAGING DEVICE AND METHOD - The present invention is related to a patient positioning imaging device for positioning a patient in a hadron therapy device provided with a rotatable gantry ( | 2009-12-10 |
20090304154 | PRODUCING A RADIATION TREATMENT PLAN - The present embodiments relate to producing a radiation treatment plan. In one embodiment, the method may include specifying a dataset in which an object requiring to be irradiated is represented; determining a target volume requiring to be irradiated within the object; ascertaining a metric identifying a density heterogeneity for a region that will be struck by the planned treatment beam; and determining as a function of the ascertained metric a safety margin for the target volume requiring to be irradiated. | 2009-12-10 |
20090304155 | CONCRETE RADIOGRAPHY - An improved way of using radiographic imagery to capture internal characteristics of a concrete structure, wherein radiographic film is placed on one side of the concrete structure and X-rays are transmitted towards the film from the other side. A target which is selectively radiographically impervious may be interposed to generate location or guidance indicia on the film. The target may itself be non-symmetric, such as being L-shaped, or alternatively or in addition, the location indicia may be non-symmetrically located on the target or alternatively, may be arrayed about the circumference of the target similar to numerals of a clock face. Imagery resulting from radiographic imagery may or may not display inclusions and other anomalies of the concrete structure. | 2009-12-10 |
20090304156 | RADIOGRAPHY CONTROL APPARATUS AND RADIOGRAPHY CONTROL METHOD - A radiography control apparatus includes an acquisition unit configured to acquire data of image-capturing mode and a change unit configured to change the number of times a correction image is captured, the correction image being used to correct a radiographic image in accordance with the acquired image-capturing-mode data. | 2009-12-10 |
20090304157 | FIELD EMISSION CATHODE AND X-RAY TUBE EMBODYING SAME - A field emission cathode has a field emitter and an extraction grid, and the field emitter and the extraction grid can be moved relative to one another. Such a field emission cathode is highly durable and exhibits a longer lifespan. An x-ray tube has a field emission cathode composed of a field emitter and an extraction grid that can be moved relative to one another. Such an x-ray tube is highly durable and exhibits a longer lifespan. | 2009-12-10 |
20090304158 | MODULAR MULTISPOT X-RAY SOURCE AND METHOD OF MAKING SAME - A modular x-ray source for an imaging system includes an electron source mounting plate, two or more electron sources each mounted on and electrically coupled to the electron source mounting plate, and a target block positioned proximately to the two or more electron sources. The source includes two or more targets mounted on and electrically coupled to the target block, each target positioned opposite a respective one of the two or more electron sources to receive a respective beam of electrons therefrom. | 2009-12-10 |
20090304159 | POSITIONING DEVICE FOR A MAMMOGRAPHY UNIT - The present embodiments relate to a mammography unit may be improved, by provision of a positioning device for a mammography unit, comprising a device support section for accommodating the radiation source and an object support device for accommodating the object holder for the relative positioning of a radiation source and an object holder. The object support section may be and/or is connected to the mammography unit by means of a connector element, wherein the device support section is mounted such as to be able to rotate relative to the connector element. | 2009-12-10 |
20090304160 | ADVERTISEMENT BASED RINGBACK SYSTEM AND METHOD FOR USE WITH A DIRECTORY ASSISTANCE SYSTEM - A communication method includes the steps of receiving a call from a caller for connection to a subscriber, attempting a connection to the subscriber and retrieving a media file associated with the subscriber. The media file is played to the caller during a ring-back period of the attempted connection, playing of the media file to the caller is charged to the provider of the media file. | 2009-12-10 |
20090304161 | SYSTEM AND METHOD UTILIZING VOICE SEARCH TO LOCATE A PRODUCT IN STORES FROM A PHONE - A system and method for providing automatic voice recognition and voice response product location information in a store while using a personal mobile phone or any phone connected to a telecommunications or data communications network such as and including the Internet and an automatic speech recognition system. The system | 2009-12-10 |
20090304162 | USER AUTHENTICATING METHOD, USER AUTHENTICATING SYSTEM, USER AUTHENTICATING DEVICE AND USER AUTHENTICATING PROGRAM - To reduce the operations required by a user to perform user authentication using the user's communication apparatus, a call module ( | 2009-12-10 |
20090304163 | CALL PROCESSING DEVICE AND METHOD - A call processing device communicating with a plurality of line cards includes a mapping table and an address table. The call processing device receives a telephone number, searches the mapping table for one index related to the received telephone number, searches the address table for one address corresponding to the sought index, rejects a call corresponding to the received telephone number if the sought address is a specially preset address, and updates one or more of the addresses of the line cards in the address table if operating modes of one or more of the line cards are changed. A call processing method is also provided. | 2009-12-10 |
20090304164 | CONTROL DEVICE FOR CONTROLLING SECURE FAX MACHINE AND METHOD THEREOF - A facsimile controlling device for facsimile security can receive or block a fax transmitted from a registered fax number. In addition, the facsimile controlling device for facsimile security may allow a transmission document to undergo authentication before being transmitted to the outside or may block the transmission document from being transmitted to a registered number. | 2009-12-10 |
20090304165 | METHOD AND APPARATUS FOR DETECTING NETWORK AND SERVICE PERFORMANCE DEGRADATIONS USING CALL DETAIL RECORDS - A method and apparatus that employ the use of CDRs to effectively monitor and proactively respond to network or service events that impact performance within a network are disclosed. For example, the method receives a plurality of call detail records (CDRs), wherein each of the plurality of call detail records comprises a plurality of fields. The method determines a n-field rule signature from each of the call detail records (CDRs), and analyzes the n-field rule signatures from the plurality of call detail records (CDRs) for detecting at least one network performance problem. | 2009-12-10 |
20090304166 | System and method for determining and associating tariff rates for institutional calls - A telecommunications method for call forwarding including storing information regarding a called party in at least one local database, where the information regarding the called party is stored in a user account and making a telephone call by dialing a telephone number with a telephone, where the telephone is contained in a telephone management system. The method also includes determining whether the telephone number is associated with the user account and transferring, via the switchboard, the call to the called party if the telephone number is associated with the user account, where the telephone management system is in communication with a revenue management system, and also where the revenue management system contains at least one local database. | 2009-12-10 |
20090304167 | AUTOMATIC DENIAL OF CALL RQUEST - A method may include receiving, from a network, a call request in a communication device, the call request including an identification of a calling party; notifying a user of the communication device of the call request; receiving an indication to deny the call request; prompting the user of the communication device, in response to receiving the indication to deny the call request, regarding automatically denying call requests having the identification of the calling party; receiving, from the user, an indication to deny call requests having the identification of the calling party; and sending an instruction to the network to automatically deny the call requests having the identification of the calling party. | 2009-12-10 |
20090304168 | SOFTWARE BASED TRADING TURRET - A communications system including a turret switching system constructed to communicate to a Web server, a turret device, and to a remote communications device via a first communications network, the Web server being constructed to communicate to a client device via a second communications network, and the client device constructed to control switching across a plurality of lines. | 2009-12-10 |
20090304169 | ADVERTISEMENT OR INFORMATION FEEDING METHOD, SYSTEM, AND PROGRAM FOR COMPLETING DEALS BETWEEN POTENTIAL CONSUMERS AND INFORMATION PROVIDERS - A method for pushing information to and receiving information from a voice terminal over a communication network includes a client storing at least one piece of personal information in the voice terminal. The client enables an advertisement feature of the voice terminal. The voice terminal communicates with an information server and transmits the piece of personal information. The voice terminal receives from the information server an information item wherein content of the information item at least in part matches the piece of personal information. If the client desires additional information, the client activates a first feature of the voice terminal wherein the voice terminal connects to an information voice terminal. If the client chooses to respond to a request contained in the information item, the client activates a second feature of the voice terminal wherein the voice terminal connects to a system for transmission of a response from the client. | 2009-12-10 |
20090304170 | DIRECT DIAL TO VOICE MAIL - A calling party can by-pass voice mail menu structures and disturbing of a called party by directly dialing into the called party's voice mail. The calling party dials a special code, such as the digit 2, in conjunction with dialing the called party's telephone number. The telephone network detects the call as being a special call by detecting the special code. In response, the calling party is sent directly to the called party's voice mail without ever ringing the called party's access device and without requiring the calling party to make menu selections for routing the call. | 2009-12-10 |
20090304171 | System and Method for Identifying Redirected Calls - Methods and systems for providing information regarding an incoming call are provided. A particular method includes generating a first distinctive ring at a communication device receiving the incoming call when the incoming call is received without being redirected. The method also includes generating a second distinctive ring at the communication device when the incoming call is a redirected call. | 2009-12-10 |
20090304172 | Call processing system - A system that is configured for determining the value of one or at least one incoming call and routing the call for processing based on this determined value. In one embodiment, the system routes very low value calls to an automated system for processing, and directs all other calls to human operators for processing. In another embodiment, the system assigns at least one agent to one or more of a plurality of groups of agents based on the agent's past performance in executing a particular task. For example, the highest performing agents at handling a particular type of call are assigned to a first group, and the second highest performing agents at handling this type of call are assigned to a second group. In one embodiment, the most important calls are routed to the first, “highest performing” group for processing, and less important calls are routed to the second group for processing. | 2009-12-10 |
20090304173 | METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR EARLY MEDIA CONNECTION PROXYING - Methods, systems, and computer readable media for early media connection proxying are disclosed. According to one method, a call setup signaling message is received for establishing a call between a calling entity and a called entity. Based on at least one parameter in the call setup signaling message, it is determined whether an early media connection is required for the call. It is also determined whether early media connection proxying is required for the call. In response to determining that an early media connection and early media connection proxying are required for the call, signaling is performed on behalf of a network entity to establish an early media connection for the call. | 2009-12-10 |
20090304174 | ACCESS-FREQUENCY ESTIMATING APPARATUS AND COMPUTER PRODUCT - An access-frequency estimating apparatus includes a storage unit that stores hours outside operating hours and for which a second-degree derivative of access frequency distribution for contact centers whose business is similar to that of a contact center subject to estimation is nearly 0, and a coefficient indicating relation between access frequency during operating hours of the other contact centers and access frequency outside the operating hours; an acquiring unit that acquires past access frequencies for operating hours of the contact center; an extracting unit that extracts, from the storage unit, a coefficient expressing relation between the access frequencies for the operating hours and an arbitrary hour outside the operating hours; a first calculating unit that calculates an estimated access frequency for the arbitrary hour of the contact center, based on the past access frequencies acquired and the coefficient; and an output unit that outputs the estimated the access frequency calculated. | 2009-12-10 |
20090304175 | DRIVE SYSTEM AND METHOD FOR AN AUTOMATED SWITCH MATRIX - The invention relates to a drive means that implements a single electric motor arrangement ( | 2009-12-10 |
20090304176 | CONFIGURATION FOR ANTIMICROBIAL MULTI-HANDEST TELEPHONE SYSTEM - A multi-handset telephone system has a first telephone handset having an antimicrobial agent situated thereon, a first amplifier that provides built in hearing impaired support, and a first integrated volume control actuator. Further, the multi-handset telephone system has a second telephone handset having the antimicrobial agent situated thereon, a second amplifier that provides built in hearing impaired support, and a second integrated control actuator. The second telephone handset is operably connected to the first handset through a handset cord such that a first user speaks on the first handset and the second user speaks on the second handset to have a face-to face conversation with each other at the same time as having a conversation with a third party remotely. | 2009-12-10 |
20090304177 | Acoustic Echo Canceller - Disclosed methods and systems measure acoustic responses to training signals activated prior to communication sessions. Profiles related to the acoustic responses are saved and adapted during communication sessions. Training signals may have uniform frequency distributions over a frequency range and may be in response to user inputs, timeouts, or predetermined events. In the next excessive divergence is detected, an adapted profile may be substituted by an original, trained profile. | 2009-12-10 |
20090304178 | Echo canceler - An echo canceller, in which an adder adds a pseudo echo generated by an adaptive filter to an echo, so that the echo and the pseudo echo are canceled to each other, includes: a subband filter ( | 2009-12-10 |
20090304179 | SYSTEM AND METHOD TO PRECLUDE MESSAGE MODIFICATION IN DATA AUTHENTICATION SYSTEMS THROUGH EFFICENT USE OF FEEDBACK IN CRYPTOGRAPHIC FUNCTIONS - A data hashing system operative to hash an incoming string of message words, thereby to generate a hash value tag comprising a deterministic random number string which uniquely identifies the incoming string, the system comprising at least first and second register arrays, at least one 1-way at least pseudo-randomizing functionality; and a set of at least first and second orthogonal feedback word stream generators operative to generate a set of at least first and second orthogonal feedback streams of message words respectively, including applying respective permutations to the incoming string, wherein the first and second feedback streams are combined into the first and second register arrays respectively, the at least pseudo-randomizing functionality accepts input from the register arrays and generates at least pseudo-random output which, in combination with a present word in the incoming string, is provided to the stream generators, and the first feedback stream is a first function of a present word in the incoming stream and the second feedback stream is a second function of a present and previous words, in the incoming stream. | 2009-12-10 |
20090304180 | KEY EVOLUTION METHOD AND SYSTEM OF BLOCK CIPHERING - A system and associated method for block ciphering. The method generates a key that is specific to a text block being encrypted and later being decrypted. The text block is encrypted by a block cipher encryption with the key. The encrypted text block is decrypted by a block cipher decryption with the key back to the text block. Altering a single bit in either the encrypted text block or the key results in unsuccessful decryption such that a decrypted text block is completely different from the before encryption. | 2009-12-10 |
20090304181 | Method for generating and/or imprinting a retrievable cryptographic key during the production of a topographic structure - The present invention relates to a method for generating and imprinting a retrievable cryptographic key during the fabrication of a topographic structure, in particular for microelectronic or micromechanical components. | 2009-12-10 |
20090304182 | System and method for providing information using audio watermarking - A system for providing information using a watermarking technique includes a signal generating means for inserting an information data into a sound source to generate an audio signal having the information data; a signal transmitting means for transmitting the audio signal to a user terminal; and an information extracting means for extracting the inserted information data from the audio signal, and the information extracting means is configured separately from the user terminal, and receives the audio signal from the user terminal, extracts the information data from the audio signal, transmits the extracted information data to the user terminal to provide the information data to the user. Therefore, the user can be provided with related information and corresponding contents through the sound source regardless of time, space, and online or offline. Further, the system provides information using audio watermarking with high robustness and reduced detection time. | 2009-12-10 |
20090304183 | COMMUNICATION SYSTEM AND COMMUNICATION METHOD - To improve a communication system including two communication apparatuses so as to reduce a possibility of having communication decrypted by a third party. The communication system includes a first communication apparatus and a second communication apparatus, where one of the communication apparatuses encrypts transmission subject data and transmits generated encrypted data to the other communication apparatus which decrypts received encrypted data. Each of the communication apparatuses generates an algorithm used for encryption each time it performs the encryption or decryption. In this case, each of the communication apparatuses generates the algorithm by assigning past solutions to a solution generating algorithm capable of having the past solutions assigned thereto and thereby generating a new algorithm. The past solutions are erased when they are no longer used. | 2009-12-10 |
20090304184 | MOBILE COMMUNICATION SYSTEM, MOBILE COMMUNICATION METHOD, WIRELESS BASE STATION, AND MOBILE STATION - A mobile communication system that performs concealment processing of data between a wireless base station and a mobile station. The mobile communication system includes a concealment synchronization deviation detecting unit that detects concealment synchronization deviation between the mobile station and the wireless base station by detecting expansion failure of a compressed header after concealment release; and a concealment synchronization information notifying unit that notifies an opposite side of concealment synchronization information when the concealment synchronization deviation occurs. | 2009-12-10 |
20090304185 | METHOD OF TRACING DEVICE KEYS FOR BROADCAST ENCRYPTION - Provided are a method of tracing a device key in a user key management system using a hierarchical hash chain broadcast encryption scheme (HBES) algorithm, a user key management system for executing the method of tracing a device key, and a computer program for executing the method of tracing a device key. The method of tracing a device key of an illegal decoder in a user key management system for broadcast encryption includes: tracing a device key using a binary search; and revoking the traced device key. The technology according to the present invention can be applied to prevent exposure of the device keys to hacking. The present invention provides a method of tracing which can be applied to an HBES algorithm structure. | 2009-12-10 |
20090304186 | SOUND PROCESSING DEVICE, SPEAKER APPARATUS, AND SOUND PROCESSING METHOD - A sound processing device includes an inputting section which inputs L-ch audio data and R-ch audio data, a delaying section which applies a delaying process to the L-ch audio data and the R-ch audio data for a delay time that is set in a range from 62.5 microsecond to 125 microsecond, an adding section which adds the delayed L-ch audio data to the inputted L-ch audio data, and which adds the delayed R-ch audio data to the inputted R-ch audio data, a phase adjusting section which adjusts a phase of the added L-ch audio data into a phase that is different from a phase of the input L-ch audio data, and which adjusts a phase of the added R-ch audio data into a phase that is different from a phase of the inputted R-ch audio data, and an outputting section which adds the L-ch audio data whose phase is adjusted by the phase adjusting section to the inputted R-ch audio data and outputs resultant R-ch audio data, and which adds the R-ch audio data whose phase is adjusted by the phase adjusting section to the inputted L-ch audio data and outputs resultant L-ch audio data. | 2009-12-10 |
20090304187 | AUTOMATIC SWITCHING BETWEEN OMNIDIRECTIONAL AND DIRECTIONAL MICROPHONE MODES IN A HEARING AID - The present invention pertains to a method of automatic switching between omnidirectional (OMNI) and directional (DIR) microphone modes in a binaural hearing aid comprising a first microphone system for the provision of a first input signal, a second microphone system for the provision of a second input signal, where the first microphone system is adapted to be placed in or at a first ear of a user, the second microphone system is adapted to be placed in or at a second ear of said user, the method comprising a measurement step, where the spectral and temporal modulations of the first and second input signal are monitored, an C evaluation step, where the spectral and temporal modulations of the first and second input signal are evaluated by the calculation of an evaluation index of speech intelligibility for each of said signals, and an operational step, where the microphone mode of the first and the second microphone systems of the binaural hearing aid are selected in dependence of the calculated evaluation indexes. | 2009-12-10 |
20090304188 | METHOD AND SYSTEM FOR ENHANCING THE INTELLIGIBILITY OF SOUNDS - A method of enhancing the intelligibility of sounds including the steps of: detecting primary sounds emanating from a first direction and producing a primary signal; detecting secondary sounds emanating from the left and right of the first direction and producing secondary signals; delaying the primary signal with respect to the secondary signals; and presenting combinations of the signals to the left and right sides of the auditory system of a listener. | 2009-12-10 |
20090304189 | Rendering Center Channel Audio - An audio upmixer, such as a two-channel to three-channel upmixer, employs a difference in a measure of sound at the ears of a listener in accordance with first and second models, one based on a reproduction of the original channels and the other based on a reproduction of the upmixed channels. The difference is minimized while simultaneously causing a, portion of one or more of the stereophonic channels to be applied to the center loudspeaker under some conditions of the signals in the stereophonic channels, the portion being commensurate with the value of a weighting factor, such that the weighting factor controls a balance between two opposing conditions, one in which no signals are applied to the center loudspeaker and another in which no signals are applied to the left and right loudspeakers. | 2009-12-10 |
20090304190 | Audio Signal Loudness Measurement and Modification in the MDCT Domain - Processing an audio signal represented by the Modified Discrete Cosine Transform (MDCT) of a time-sampled real signal is disclosed in which the loudness of the transformed audio signal is measured, and at least in part in response to the measuring, the loudness of the transformed audio signal is modified. When gain modifying more than one frequency band, the variation or variations in gain from frequency band to frequency band, is smooth. The loudness measurement employs a smoothing time constant commensurate with the integration time of human loudness perception or slower. | 2009-12-10 |
20090304191 | AUTOMATIC GAIN CONTROL SYSTEM APPLIED TO AN AUDIO SIGNAL AS A FUNCTION OF AMBIENT NOISE - An automatic gain control system applied to a audio signal as a function of the ambient noise, the system comprising: an ambient noise estimator module suitable for establishing a current noise value estimated at least from a signal provided by a microphone; and an automatic gain control module suitable for applying to the audio signal gain of a value that is determined as a function of the current noise value received from the ambient noise estimator module. According to the invention, the ambient noise estimator module comprises an MCRA estimator suitable for establishing the current noise value from a signal provided by the microphone picking up the real noise, the echo of the music, and where appropriate speech. The system also includes a module for estimating the power of the audio signal and suitable for providing the automatic gain control module with a current power value for the audio signal. | 2009-12-10 |
20090304192 | METHOD AND SYSTEM FOR PHASE DIFFERENCE MEASUREMENT FOR MICROPHONES - The invention provides a system for phase difference measurement. In one embodiment, the system comprises a speaker, a high-speed digital input/output (HSDIO) device, and a testing computer. The speaker plays a test voice, wherein a reference microphone converts the test voice to a reference signal, and a plurality of test microphones convert the test voice to a plurality of tested signals. The HSDIO device receives the reference signal and the tested signals, and generates a multi-bit datastream according to the reference signal and the tested signals, wherein each word of the multi-bit datastream comprises a bit of the reference signal and a plurality of bits of the tested signals. The testing computer retrieves the reference signal and the tested signals from the multi-bit datastream, and measures phase differences between the tested signals and the reference signal. | 2009-12-10 |
20090304193 | Devices and Methods for Testing the Operability of Audio Speakers - A device for testing the operability of an audio speaker includes a housing, a unidirectional microphone and a display. The underside of the housing comprises a recessed area. The unidirectional microphone is positioned and oriented in the recessed area such that the unidirectional microphone is recessed from the underside of the housing. The display is positioned on the housing such that the display is visible when the testing device is placed proximate an audio speaker with the underside of the housing facing the audio speaker. The display may include at least one visual indicator operatively coupled to the unidirectional microphone such that, when the unidirectional microphone is receiving an acoustic signal, the at least one visual indicator is illuminated. | 2009-12-10 |
20090304194 | Identification Method and Apparatus in an Audio System - An identification method and apparatus in a sound-reproduction system, in which an electrical calibration signal is created, an audio signal is created in the loudspeaker from the calibration signal, the response of the audio signal is measured and analysed, and the system is adjusted on the basis of the measurement results. A light signal is created in the loudspeaker with the aid of a centralized control system, in order to indicate visually the loudspeaker that is the subject of the calibration. | 2009-12-10 |
20090304195 | METHOD AND DEVICE FOR DIAGNOSING THE OPERATING STATE OF A SOUND SYSTEM - The invention relates to a method of diagnosing the operating state, in situ, of a sound system comprising at least one loudspeaker suitable for being connected to an audio player and arranged in an at least partially closed space, characterized in that it comprises the following steps:
| 2009-12-10 |
20090304196 | Wireless vocal microphone with built-in auto-chromatic pitch correction - A series of signal processing features incorporated into its design that is both functional and decorative, to enhance convenience and performance among vocalists. A hollow, cylinder shaped body is oriented lie a conventional microphone, featuring a cardioid pickup pattern and a dynamic diaphragm, as well as a three-pin/XLR connector, a grill, and an integral pop filter. A transmitter handling the conversion of the audio signal into a radio signal and broadcasts it through an antenna, is built into the handle of the microphone, resulting in a wireless microphone that is slightly larger than a standard wired microphone. The microphone also has a shock-absorption system that reduces noise while the microphone is being handled buy the vocalist during a performance. | 2009-12-10 |
20090304197 | DISTRIBUTED AUDIO SIGNAL PROCESSING SYSTEM HAVING VIRTUAL CHANNELS - A distributed audio signal processing system having a plurality of linked audio signal processing units is disclosed. Each audio signal processing unit has physical channels for receiving and sending local audio signals and a high bandwidth interface for exchanging audio signals with other linked audio signal processing units. Each of the physical channels of each of the audio signal processing units is mapped to a corresponding global channel. Global channels can be combined to form virtual channels that can be processed as a signal channel. | 2009-12-10 |
20090304198 | AUDIO SIGNAL DECORRELATOR, MULTI CHANNEL AUDIO SIGNAL PROCESSOR, AUDIO SIGNAL PROCESSOR, METHOD FOR DERIVING AN OUTPUT AUDIO SIGNAL FROM AN INPUT AUDIO SIGNAL AND COMPUTER PROGRAM - An audio signal decorrelator for deriving an output audio signal from an input audio signal has a frequency analyzer for extracting from the input audio signal a first partial signal descriptive of an audio content in a first audio frequency range and a second partial signal descriptive of an audio content in a second audio frequency range having higher frequencies compared to the second audio frequency range. A partial signal modifier for modifies the first and second partial signals, to obtain first and second processed partial signals, so that a modulation amplitude of a time variant phase shift or time variant delay applied to the first partial signal is higher than that applied to the second partial signal, or for modifying only the first partial signal. A signal combiner combines the first and second processed partial signals, or combines the first processed partial signal and the second partial signal, to obtain an output audio signal. | 2009-12-10 |
20090304199 | Multiple Fan Acoustic Interaction Control - A fan control system includes a controller that is coupled to a plurality of fan couplers. A computer-readable medium is coupled to the controller and includes a first fan identification corresponding to a first fan, a second fan identification corresponding to a second fan, and at least one fan property associated with each of the first fan identification and the second fan identification. The controller is operable to monitor at least one operating parameter of each of the first fan and the second fan when the first fan and the second fan are coupled to a respective fan coupler. The controller is further operable to use the at least one fan property associated with each of the first fan identification and the second fan identification and the at least one operating parameter of each of the first fan and the second fan in order to adjust a speed of the second fan relative to a speed of the first fan. | 2009-12-10 |
20090304200 | Adaptive mode control apparatus and method for adaptive beamforming based on detection of user direction sound - An adaptive mode control apparatus and method for adaptive beamforming based on detection of a user direction sound are provided. The adaptive mode control apparatus includes a signal intensity detector that searches for signal intensity of each designated direction to detect signal intensity having a maximum value when a voice signal of each direction is input through at least one microphone; and an adaptive mode controller that compares the signal intensity having the maximum value detected through the signal intensity detector with a threshold value and determines whether to perform an adaptive mode of a Generalized Sidelobe Canceller (GSC) according to the comparison results. Therefore, a lack of control of adaptation of an adaptive filter of the conventional art is solved. That is, as one condition for guaranteeing performance of adaptive beamforming, adaptation of an adaptive filter is not performed when noise of a sound with a high autocorrelation is cancelled. | 2009-12-10 |
20090304201 | TIME ALIGNED GROUP AUDIO REPRODUCTION IN NARROWBAND AND BROADBAND NETWORKS - A method for synchronizing media reproduction across heterogeneous networks is presented. The networks include end-to-end IP broadband and narrowband simulcast networks that contain broadband and narrowband devices associated with a common communications group. A controller in the networks determines delay times for reproduction of a media stream across devices in the networks and establishes the longest delay time. The longest delay time is used to calculate appropriate transmission and reproduction timestamps to permit the devices to reproduce the provided media stream in synchronization. Narrowband base stations repeat the media stream at the time specified by a transmission timestamp, and broadband end devices reproduce the media stream at the time specified by a reproduction timestamp. By synchronizing the presentation time, the devices present the media at substantially the same time and are granted fair rights to communicate with one another. | 2009-12-10 |
20090304202 | SOUND AMPLIFICATION SYSTEM - A classroom sound amplification system adapted for providing information aiding at diagnosing possible erroneous or inappropriate conditions or configuration of the system is disclosed. The system comprises a microphone device converting a voice to a sound signal and connecting to a sound processing device processing the sound signal and generating a processed sound signal, and a speaker device connecting to the sound processing device and converting the processed sound signal to a processed voice. The microphone device, the sound processing device, the speaker device and one or more A/V-devices are connected to or form part of the control device allowing the control device to collect operational information concerning the operation and/or status of devices of the system by monitoring predefined operational a parameters at various points in time. | 2009-12-10 |
20090304203 | METHOD AND DEVICE FOR BINAURAL SIGNAL ENHANCEMENT - Various embodiments for components and associated methods that can be used in a binaural speech enhancement system are described. The components can be used, for example, as a pre-processor for a hearing instrument and provide binaural output signals based on binaural sets of spatially distinct input signals that include one or more input signals. The binaural signal processing can be performed by at least one of a binaural spatial noise reduction unit and a perceptual binaural speech enhancement unit. The binaural spatial noise reduction unit performs noise reduction while preferably preserving the binaural cues of the sound sources. The perceptual binaural speech enhancement unit is based on auditory scene analysis and uses acoustic cues to segregate speech components from noise components in the input signals and to enhance the speech components in the binaural output signals. | 2009-12-10 |
20090304204 | Controlling reproduction of audio data - For controlling the acoustic reproduction of audio data containing audio elements that are periodically repeated, movement data regarding a movement process is detected. The movement process contains recurring events. Reproduction of the audio data is controlled using the movement data in such a way that at least within a certain period, one out of n audio elements that are periodically repeated is reproduced in synchrony with the moment one of the recurring events occurs (synchronization) or is reproduced temporally offset by a given amount of time from the moment one of the recurring events occurs (offset synchronization). The value n represents a positive integer. | 2009-12-10 |
20090304205 | TECHNIQUES FOR PERSONALIZING AUDIO LEVELS - Techniques for personalizing audio levels, in accordance with embodiments of the present technology, provide different audio volumes to different locations in a room allowing for two or more users to enjoy the same audio content at different volumes. Differential level and delay compensation filtering based on a position of each of a plurality of speakers, the location of each user and the preferred relative audio volume of each user are utilized to produce different effective audio levels in localized regions of a room. | 2009-12-10 |
20090304206 | DISTRIBUTED AUDIO SIGNAL PROCESSING SYSTEM - A distributed audio signal processing system having a plurality of linked audio signal processing units is disclosed. Each audio signal processing unit has physical channels for receiving and sending local audio signals and a high bandwidth interface for exchanging audio signals with other linked audio signal processing units. Each of the physical channels of each of the audio signal processing units are mapped to a corresponding global channel. The audio signal processing system provides a tightly integrated, distributed signal processing matrix where any input signal or physical channel on any one of the signal processing units can be exchanged with any other of the linked audio signal processing units, thereby providing maximum flexibility for selecting signals to mix and determining how to process the signals. | 2009-12-10 |
20090304207 | SOUND MIXING CONSOLE - A sound mixing console operative for combining or processing sound signals of a plurality of input channels is described. The sound mixing console ( | 2009-12-10 |
20090304208 | Body motion controlled audio playing device - A body motion controlled audio playing device is disposed with a sensing switch that can be covered in a non-contact way to selectively enable such functions as startup, shutdown, mute, and volume adjustment. | 2009-12-10 |
20090304209 | Bone conduction earphone - A bone conduction earphone in which a large magnetic force can be generated and which can achieve improvement of sound quality and reduction of power consumption is provided. A vibration part | 2009-12-10 |
20090304210 | Method and System for Bone Conduction Sound Propagation - A wearable surround sound system, that includes: (a) a processor, adapted to receive input signals representative of requested audio signals to be heard by the user and in response to generate multiple output signals; and (b) multiple bone conduction speakers, coupled to the processor, adapted to convey the multiple output signals to at least one bone of a user; wherein the bone conduction speakers are arrayed so as to stimulate an encompassing sound perception of the use. A wearable ambient sound reduction system, that includes: (a) a microphone, adapted to detect an ambient sound signal; (b) a processor adapted to generate an output signal in response to the ambient sound signal; wherein the output signal, when conveyed to a bone of the user, reduces an affect that an ambient sound signal has upon the user; wherein the microphone is coupled to the processor; and (c) a bone conduction speaker, coupled to the processor, adapted to convey the output signal to a bone of a user. | 2009-12-10 |
20090304211 | LOUDSPEAKER ARRAY DESIGN - Sound signals to be output from a loudspeaker array are modified by a plurality of filters designed according to an unconstrained optimization procedure to improve overall performance (e.g., power, directivity) of the loudspeaker array. More particularly, respective filters are configured to receive a signal to be output to a plurality of loudspeakers. Upon receiving the signal, the respective filters individually modify the received signal according to the results of the unconstrained optimization procedure and then output the individually modified signals to respective loudspeakers. The unconstrained optimization procedure takes into account manufacturing tolerances and individually enhances the signal output to each of a plurality of individual loudspeakers within an array to achieve an overall improvement in performance. In one example, a speaker system utilizes the unconstrained optimization procedure to enable a user to hear an output sound clearly, while adjacent people experience the output sound at lower volume, if at all. | 2009-12-10 |
20090304212 | FLEXIBLE ELECTRET TRANSDUCER ASSEMBLY, SPEAKER, AND METHOD FOR FABRICATING FLEXIBLE ELECTRET TRANSDUCER ASSEMBLY - A flexible electret transducer assembly including an electrical backplate and a membrane made of an electret material is disclosed. A plurality of spacers is formed on a surface of the electrical backplate in a longitudinal or latitudinal direction, and the spacers are used for supporting a vibrating room of the membrane. A working area of the membrane is formed between adjacent spacers, and in each of the working area, the space between the electrical backplate and the membrane is smaller than that in a conventional electrostatic speaker. The spacers between the electrical backplate and the membrane are mass produced through a stamping process. Thereby, an accurate space between the electrical backplate and the membrane can be maintained and accordingly the audio quality can be improved. In addition, a speaker including the flexible electret transducer assembly and a method for fabricating the flexible electret transducer assembly are also disclosed. | 2009-12-10 |
20090304213 | Stereophonic Sound Imaging - A method for reducing phase differences varying with frequency occurring at certain listening positions with respect to loudspeakers reproducing respective ones of multiple sound channels in a listening space, the phase differences occurring in a sequence of frequency bands in which the phase differences alternate between being predominantly in-phase and predominantly out-of-phase, comprises adjusting the phase in multiple frequency bands in which the multiple sound channels are out-of-phase at such listening positions. Such adjustment of phase includes the frequency bands in which the width of comb filtering pass bands and notches resulting from phase differences at such listening positions would be greater than or commensurate with the critical band width if the phase adjustment were not applied. The listening space may be the interior of a vehicle. | 2009-12-10 |