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36th week of 2008 patent applcation highlights part 32
Patent application numberTitlePublished
20080212715Method and apparatus for baseline wander compensation in Ethernet application - An embodiment of the proposed invention is primarily applied to compensate the BLW in communication systems using THPs in their transmitters, especially suitable for the 10GBase-T Ethernet application. The present apparatus includes an additional decision device (slicer) used to generate DC offset information (error signal) and an extra modulus unit after our BLW compensator to reconvert compensated symbols to correct 16-PAM signals. In addition, the estimated error signals in our method are generated from the difference between the input of the BLW compensator and the output of the decision device. These error signals are then weighted to alleviate the impact of erroneous DC offset information on the performance of the BLW compensator. Therefore, a more direct and accurate DC offset information can be derived to improve the inaccurate BLW estimation in previous works.2008-09-04
20080212716BURST MODE RECEIVER FOR PASSIVE OPTICAL NETWORK - A receiver assembly for use in an optical telecommunications network is provided that automatically generates a reference level for the incoming signal burst based on its preamble without the need to pre-process the entire signal burst. The entire signal burst is fed directly from the TIA into the input of the limiting amplifier. A differential amplifier, tapped from the data and data bar outputs of the limiting amplifier, samples the signal stream to capture the preamble portion of each signal burst. The preamble portion of the signal burst is then passed, post amplification, into a sample and hold circuit. The sample and hold circuit samples the amplitude of this preamble portion of the signal and then holds the sampled level for use as a reference level for the processing of following payload signal.2008-09-04
20080212717Carrier frequency detection for signal acquisition - A carrier frequency in a filtered received M-ary phase-shift keyed (MPSK) modulated signal having in-phase and quadrature components is detected by processing the filtered received signal to remove modulation components and thereby generate a test signal at the carrier frequency; processing the test signal to provide an amplitude spectrum of samples at different test frequencies; and processing the amplitude spectrum to detect the carrier frequency in accordance with the test frequency at which there is a test statistic of the highest magnitude. The magnitude of the test statistic is determined by processing a signal statistic in relation to a noise statistic. The signal statistic is the amplitude of the largest-amplitude sample. The filtered received signal is processed to provide approximate values of the modulus of the received signal and the phase of the received signal; and the approximate modulus and phase values are processed to generate the test signal.2008-09-04
20080212718Multi-Rate Tracking Circuit - A multi-rate tracking circuit with an input for a signal, an output arranged to indicate a current proposed level related to the signal, and voting logic connected to the input, arranged to indicate of a direction of change in the current proposed level. A first counter is connected to the voting logic, and arranged to vary the current proposed level based on the indications received from the voting logic. A second counter is arranged to vary a value based on the indications from the voting logic. The variation of the current proposed level by the first counter is dependent on the value varied by the second counter.2008-09-04
20080212719Motion vector detection apparatus, and image coding apparatus and image pickup apparatus using the same - A search range setting unit sets a search range to be matched with a targeted region of an image to be coded, in a reference image. A computing unit performs computation in a manner such that matching between the targeted region and a region within the search range is computed from a resolution lower than that of an original image toward the resolution of the original image over a plurality of hierarchies and the search range is narrowed. The search range setting unit sets a plurality of search ranges in the reference image in at least one of the plurality of hierarchies.2008-09-04
20080212720Maximum likelihood decoder for pulse position modulation multi-source system - The present invention concerns a sphere decoder for a maximum likelihood receiver intended to receive PPM symbols at M modulation positions from a plurality P of sources. The sphere decoder uses a Schnorr-Euchner type enumeration adapted to classify the points of a multidimensional PPM modulation.2008-09-04
20080212721LOW COMPLEXITY MAXIMUM LIKELIHOOD SEQUENCE DETECTION SYSTEM AND METHODS - A system and method implement low complexity maximum likelihood sequence detection. A decision feedback algorithm computes x(M+D+L−1). Optimality examination is performed for x(M), and state values and values of Markov states along paths from states in x(M) to x1(M+L) are computed.2008-09-04
20080212722Method and apparatus providing an advanced mimo receiver that includes a signal-plus-residual interference (SPRI) detector - A method is disclosed to obtain M final symbol decisions for signals received through N receive antennas that were transmitted in M parallel data layers, using a same spreading code from M transmit antennas. The method includes space-time equalizing the N received signals to generate M output signals from which at least inter-symbol interference is substantially removed and inter-layer interference is suppressed; despreading each of the M output signals for generating M soft symbol estimates; and processing the M soft symbol estimates to derive M final symbol decisions that are made in consideration of modeled residual inter-layer interference present in the space-time equalized M output signals. Processing includes operating a signal-plus-residual-interference (SPRI) detector that operates in accordance with a maximum likelihood (ML) technique, while space-time equalizing employs a linear minimum mean-square error (LMMSE) criterion. Transmitting may occur at a base station having the M transmit antennas, and receiving may occur at a mobile station having the N receive antennas.2008-09-04
20080212723SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND PROGRAM - In a signal processing apparatus adapted to process a signal transmitted via a transmission path, distortion of a waveform of a signal value of a specific symbol is predicted on the basis of a characteristic of distortion depending on values of symbols transmitted before the specific symbol, and the distortion is removed from the waveform of the received signal thereby producing a distortion-removed waveform. A comparison value is calculated for each allowable value of the specific symbol by subtracting a predicted signal value of the specific value from the distortion-removed waveform. A symbol value corresponding to the smallest comparison value is determined as the value of the specific symbol. An error suspicion level value indicating the degree of suspicion of being incorrect is calculated for each of the predetermined number of symbols, and already determined values of symbols are corrected in accordance with the error suspicion level values.2008-09-04
20080212724Wireless communications system having reduced noise mode operation capability - A wireless communication system having a terminal unit operates in a reduced noise state during receipt of a wireless transmission from a control unit. The terminal unit includes terminal circuitry, a radio and noise management circuitry. The noise management circuitry partially or fully disables operation of the terminal circuitry during a receipt by the radio. Noise management circuitry may disable a terminal processor, disable interrupts, buffer interrupts and otherwise modify operation of the terminal circuitry to reduce generated radio noise that would otherwise interfere with receipt of data by the radio. The wireless communication system includes noise management circuitry located in a control unit that operates in conjunction with noise management circuitry in a first terminal unit and a second terminal unit to schedule transmissions from the control unit. These scheduled transmissions allow the terminal units to perform required processing functions outside of the reduced noise period.2008-09-04
20080212725Digital Predistortion for Cognitive Radio - Embodiments of cognitive radio technology can recover and utilize under-utilized portions of statically-allocated radio-frequency spectrum. A plurality of sensing methods can be employed. Transmission power control can be responsive to adjacent channel measurements. Digital pre-distortion techniques can enhance performance. Embodiments of a high DNR transceiver architecture can be employed.2008-09-04
20080212726Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining difference information and entropy-decoding the difference information according to an entropy coding scheme including time grouping and frequency grouping and data-decoding the difference information according to a data decoding scheme including a pilot difference, a time difference and a frequency difference.2008-09-04
20080212727Method for Receiving a Multicarrier Signal Using at Least Two Estimates of a Propagation Channel and Corresponding Reception Device - A method is provided for receiving a multicarrier signal including a time-based succession of symbols, each including a plurality of multicarriers bearing data, at least one of said symbols including at least one reference pilot. The method includes the following steps: a first estimation of a propagation channel, in accordance with a first estimating technique taking into account the or said reference pilots; at least one second estimation of said propagation channel, in accordance with a second estimating technique different from said first technique; comparing said first and second estimations, delivering an error signal; detecting at least one interfering signal in said propagation channel, by analyzing said error signal.2008-09-04
20080212728METHOD AND APPARATUS FOR GENERATING CLOCKS FOR A HANDHELD MULTISTANDARD COMMUNICATION SYSTEM - Systems and methods for processing signals are disclosed. The method may include, in a communication system comprising a plurality of devices, controlling the supply of one or more clock signals from a first clock source to one or more of the plurality of devices based on a signal communicated from a particular one of the plurality of devices to a second clock source and a request for a clock signal from one of the plurality of devices. The communicated signal may control an accuracy of the second clock source. The particular one of the plurality of devices may have highest accuracy requirements among the plurality of devices. At least one main clock signal may be generated for at least one of the plurality of devices utilizing an input clock signal received from the second clock source.2008-09-04
20080212729Low Jitter Clock Recovery from a Digital Baseband Data Signal Transmitted Over a Wireless Medium - A system and method of transmitting a data stream from a data source over a baseband wireless communication system to one or more receivers. The receivers simultaneously recover the data and clock signals of the original data stream from the wireless transmitted data so that the data stream can be provided by the receivers to a data sink at the same rate as the original data stream, with low jitter performance.2008-09-04
20080212730PLL/DLL dual loop data synchronization - A dual loop (PLL/DLL) data synchronization system and method for plesiochronous systems is provided. A dual loop data serializer includes a phase lock loop (PLL) and a delayed lock loop (DLL) configured with a phase shifter in the feedback path of the PLL. The dual loop serializer locks to the input of the DLL instead of the local reference. Thus, the DLL adjusts the frequency from the PLL so that it matches the desired data rate. Each loop may be optimized for jitter tolerance with the net effect generating a synthesized clean clock (due to narrow bandwidth filtering) and VCO noise suppression (due to wide bandwidth filtering). A dual loop retimer includes a dual loop serializer (PLL/DLL) and a clock recovery DLL. The retimer resets the jitter budget to meet transmission requirements for an infinite number of repeater stages.2008-09-04
20080212732Tub-Type Meltdown Retaining Device - The invention relates to a Tub-like retainer for a nuclear core melt, comprising an outer envelope with a multi-layer lining along its inner surface, wherein said lining comprises, from inside to outside, a monolithic sacrificial layer, a layer made of high temperature resistant shaped parts and a monolithic filling layer between said envelope and said layer made of shaped parts.2008-09-04
20080212733Nuclear power plant using nanoparticles in emergency systems and related method - A nuclear power plant with an improved cooling system using nanoparticles in solid or fluid form is provided. The nanoparticles are delivered in locations such as the cold leg accumulator and high and low pressure pumps of an emergency core cooling system. Motor driven valves and pressurization can aid in the delivery. Methods for providing the nanoparticles are also provided.2008-09-04
20080212734Correction of Non-Linearities in an Imaging System by Means of a Priori Knowledge in Radiography - The invention relates to a method for online correction of non-linearities in the imaging system during the data acquisition in industrial computer tomography (CT). The above provides a method for the provision of corrected projection data as an improved CT reconstruction, whereby measuring beams (q) are emitted from a radiation source (Q) which pass through the sample (2008-09-04
20080212735X-RAY CT DEVICE - An X-ray CT device according to the present invention produces an X-ray beam of a cone shape in the direction of the body axis of a subject from an X-ray source, performs a helical scanning operation in accordance with the relative movement and relative rotational motion of the X-ray source and the subject, processes data that is collected by a data collecting unit, and reconstructs an image by back-projecting the processed data at a reconstruction processing unit. When the moving speed of the bed is defined, a system controlling unit determines the optimal collection condition for a two-dimensional array-type X-ray detector.2008-09-04
20080212736Element Analysis Device - Described is an element analysis device, which can be used to obtain precise measurements even under unfavorable environmental conditions. For this, the device is provided with a transporting means with a measuring region (2008-09-04
20080212737Techniques For Compensating Movement of a Treatment Target in a Patient - Techniques for improving treatment delivered to a target site in a patient include delivering a treatment from a treatment delivery device to a target site in a patient supported by a patient support structure. During the delivery of treatment, a state of the patient is measured to produce real-time measurement data. Measuring the state is non-invasive; and the measured state is a correlated surrogate for position of the target site. Compensating movement data is determined based on the real-time measurement data to cause the target site to maintain a particular spatial relationship with the treatment delivery device. Either the treatment delivery device, or the support structure, or both, are moved based on the compensating movement data. When the delivery device alone is moved, the correlation between measured state and target site is based on partial least squares applied to pre-treatment measurements of both.2008-09-04
20080212738ORTHOVOLTAGE RADIOTHERAPY - A radiosurgery system is described that is configured to deliver a therapeutic dose of radiation to a target structure in a patient. In some embodiments, inflammatory ocular disorders are treated, specifically macular degeneration. In some embodiments, other disorders or tissues of a body are treated with the dose of radiation. In some embodiments, the target tissues are placed in a global coordinate system based on ocular imaging. In some embodiments, the target tissues inside the global coordinate system lead to direction of an automated positioning system that is directed based on the target tissues within the coordinate system. In some embodiments, a treatment plan is utilized in which beam energy and direction and duration of time for treatment is determined for a specific disease to be treated and/or structures to be avoided. In some embodiments, a fiducial marker is used to identify the location of the target tissues. In some embodiments, radiodynamic therapy is described in which radiosurgery is used in combination with other treatments and can be delivered concomitant with, prior to, or following other treatments.2008-09-04
20080212739X-RAY ANALYSIS APPARATUS AND X-RAY ANALYSIS METHOD - In an X-ray analysis apparatus and an X-ray analysis method, a quantitative analysis is stably performed by stably behaving an X-ray source. There are possessed an X-ray tubular bulb irradiating a primary X-ray to a sample, a primary X-ray adjustment mechanism capable of adjusting an intensity of the primary X-ray, an X-ray detector detecting a characteristic X-ray radiated from the sample, thereby outputting a signal including energy informations of the characteristic X-ray and a scattered X-ray, an analyzer analyzing the above signal, and an incident X-ray adjustment mechanism disposed between the sample and the X-ray detector, and capable of adjusting a total intensity of the characteristic X-ray and the scattered x-ray, which are entered to the X-ray detector.2008-09-04
20080212740X-RAY DIAGNOSTIC APPARATUS AND X-RAY DIAGNOSTIC SYSTEM - An X-ray diagnostic apparatus includes a bed, an X-ray generating unit, an X-ray detection unit, a support which movably supports the X-ray generating unit and the X-ray detection unit, an X-ray application switch which triggers generation of X-rays from the X-ray generating unit, an operation unit for moving the X-ray generating unit and the X-ray detection unit, an image generating unit which generates an image on the basis of an output from the X-ray detection unit, a display unit which is placed near the bed and displays the image, and a simulation image generating unit which generates a simulation image from stored data during a simulation period in accordance with operation of the X-ray application switch and operation of the operation unit.2008-09-04
20080212741Method for automatic evaluation of scan image data records - A method is disclosed for automatic evaluation of tomographic image data records of a patient. In at least one embodiment, a scan of a patient being carried out using a tomography system, a three-dimensional tomographic image data record of at least a part of the patient is reconstructed, the spatial position and orientation of vertebrae is then determined, and medically relevant slice areas are determined automatically with a previously defined diagnostic question relating to the position, orientation and extent of spinal column diagnosis. Finally, with slice images of the relevant slice areas are produced and displayed. In addition, in at least one embodiment, a tomography system includes a computation unit with a memory for program code, with the memory also being used to store a program code which carries out the method steps of the method according to at least one embodiment of the invention during operation.2008-09-04
20080212742PERSONNEL SECURITY SCREENING SYSTEM WITH ENHANCED PRIVACY - The present invention is directed towards processing security images of people subjected to X-ray radiation. The present invention processes a generated image by dividing the generated image into at least two regions or mask images, separately processing the at least two regions of the image, and viewing the resultant processed region images either alone or as a combined image.2008-09-04
20080212743Cantilevered gantry apparatus for x-ray imaging - An x-ray scanning imaging apparatus with a rotatably fixed generally O-shaped gantry ring, which is connected on one end of the ring to support structure, such as a mobile cart, ceiling, floor, wall, or patient table, in a cantilevered fashion. The circular gantry housing remains rotatably fixed and carries an x-ray image-scanning device that can be rotated inside the gantry around the object being imaged either continuously or in a step-wise fashion. The ring can be connected rigidly to the support, or can be connected to the support via a ring positioning unit that is able to translate or tilt the gantry relative to the support on one or more axes. Multiple other embodiments exist in which the gantry housing is connected on one end only to the floor, wall, or ceiling. The x-ray device is particularly useful for two-dimensional multi-planar x-ray imaging and/or three-dimensional computed tomography (CT) imaging applications2008-09-04
20080212744Method, system, apparatus, and program for verifying media service features - Methods, systems, and computer program products are provided for verifying a service provided to at least one subscriber terminal in a communication network. The method includes connecting a communication device to the network, logging into a test unit communicatively coupled to the network using the communication device, entering into the communication device an access code corresponding to a test for verifying a service, and conducting the test for verifying the service, corresponding to the access code.2008-09-04
20080212745Method and Device For Checking the Connection of a Positive Supply Voltage to a Subscriber Access Line Comprising a Plurality of Wires - According to the invention, a user connection cable (TAL) that is to be associated with a user connection circuit (SLIC) and is used for connecting at least one user (TN) to at least one communication network is verified regarding switching on of a positive distribution voltage in the strands (a, b). The user connection circuit (SLIC) is initially switched to the silent interval mode and a test impedance (I) is switched between the strands (a, b) of the user connection cable (TAL), whereupon the current (i) flowing across the strands (a, b) and the voltage (u) to ground of a strand (b) are measured. Advantageously, the measurements are taken via measuring devices disposed on the user connection subassembly (SLMA).2008-09-04
20080212746System and Method for Communicating Medical Alerts - A system and method for communication based on a condition of a user. A VoIP telephone is linked with a device for monitoring one or more health metrics of a user. The one or more health metrics of the user are received from the device. A speaker of the VoIP telephone is enabled to make a call in response to determining the one or more health metrics are not within a pre-defined rage. A receiving party is called in response to determining the one or more health metrics are not within a pre-defined range.2008-09-04
20080212747METHOD AND APPARATUS FOR SERIALIZING AN ASYNCHRONOUS COMMUNICATION - A method and apparatus for scalable handling of communications with varying numbers of participants over a telephone interface is described. The approach treats the different participants recorded communications as part of a larger asynchronous communication and provides a serializing (voice) user interface for participating in the conversation. This can be used to provide services ranging from phone-based discussion boards to more orderly teleconferences. Features may include moderation of comments, automatic removal of comments, and/or other features tailored to the specific use of the serializing approach.2008-09-04
20080212748Voice Communications Menu - Methods and systems are described for providing a telecommunications services menu accessible via a voice interactive system, such as a voice services node. A subscriber accesses a voice communications menu by accessing a voice services node. The voice services node queries a customer profile database to obtain a list of telecommunications services available to the subscriber. At the voice services node, a voice prompt is constructed for providing the subscriber a voice menu of the available services. After the subscriber receives the voice prompt of menu items, the subscriber may select a service from the provided menu.2008-09-04
20080212749Method And System For Implementing Downloading The Media Resources By Terminal And A Ring-Back Tone Platform - A method for implementing downloading the media resources by terminal is applied in the mobile communication network, which comprises: the calling terminal calls the called user subscribing the ring-back tone service through the Mobile Switching Center MSC of the calling side, according to the ring-back tone registering information of the called terminal obtained by the MSC of the calling side, the calling terminal establishes a bi-link connection with the ring-back tone platform through the MSC of the calling side; after receiving the download command from the calling terminal through the bi-link connection, the ring-back tone platform sends the media resources corresponded to the ring-back tone to the calling terminal. At the same time, a system for implementing downloading the media resources by terminal and a ring-back tone platform are also disclosed. By using the present invention, the user can realize downloading the media resources without connecting the Internet, and the steps for determining the terminal type and searching the media resources information etc. are omitted, thus the user can realize downloading the media resources quickly and easily.2008-09-04
20080212750System for providing network information service using CID-type messages - A network-based announcement and message delivery service for providing a landline customer with information of interest such as weather, financial market data, time/temperature, sporting event results, etc. In a first embodiment, information is provided to a subscriber who simply lifts the handset of the telephone. The subscriber instead of hearing a dial tone hears the information in the form of streaming audio. In another embodiment, information is provided to the subscriber by way of information displayed on a caller-ID display and/or by way of talking caller-ID.2008-09-04
20080212751TELEPHONE BACKGROUND SCREENSAVER WITH LIVE INTERNET CONTENT - Discloses a system and method for display of live content on a telephone handset with an input keypad and a graphical display. The live content is gathered from a one source of live content information and a configuration agent receives user live content selection input from a computer or the handset and stores the selection a profile data base. A display agent interoperates with the profile database to obtain information from the user selected source of live content information and displays at least a portion of the information obtained on the telephone handset display. In a preferred manner of operation, a crawler connects to and receives information from an information provider and the received information is stored in an information cache. A display agent periodically dispatches information from the information cache to the handset display as selected by the user.2008-09-04
20080212752SYSTEMS, METHODS AND APPARATUS FOR RECEIPT PRINTING AND INFORMATION DISPLAY IN A PERSONAL IDENTIFICATION NUMBER DELIVERY SYSTEM - Systems, methods, and apparatus for providing a personal identification number (PIN) in the form of a receipt displayed and/or printed by a client terminal are disclosed. A method includes storing, at the client terminal, receipt templates, received from a server, for plural prepaid services from a plurality of prepaid service providers. The method further includes receiving, at the client terminal, a request for a PIN associated with one or more of the plural prepaid services. Requested PINs and other information associated with one or more of the plural prepaid services is then displayed and/or printed, in accordance with one or more of the receipt templates associated with the plural prepaid services, upon the receipt and dispensed by the client terminal. Related systems and apparatus are also disclosed.2008-09-04
20080212753TERMINAL APPARATUS, CALL SWITCHING METHOD, AND RECORDING MEDIUM HAVING STORED THEREIN CALL SWITCHING PROGRAM - A terminal apparatus capable of performing a normal call and a hand-free call comprising an imaging unit that images an image; a detecting unit that detects a position of the terminal apparatus using the image imaged by the imaging unit; and a call switching unit that switches the normal call and the hand-free call on the basis of a result of the detection of the detecting unit.2008-09-04
20080212754Method and System for Providing Enhanced Call Waiting - A system and method for providing information about a calling party to a called party is disclosed. Generally, a network element obtains information about a calling party when a telephone line of a called party is busy. The network element notifies the called party that the calling party is attempting to contact the called party and transmits an audible version of the information about the calling party to the called party without receiving an input from the called party.2008-09-04
20080212755GRAPHICAL USER INTERFACE FOR TELEPHONY DEVICE - For use with a telephony application executed within a computer having a screen display, the improvement comprising displaying a tool bar having at least one context sensitive button within a task bar on the screen display, wherein the tool bar is located so as not to overlap any application windows displayed on the screen display.2008-09-04
20080212756Systems and Methods for Arranging a Call - According to one embodiment of the present invention, a method of arranging a call with a service provider is disclosed. The method includes: determining whether the service provider accepts arranged calls; if it is determined that the service provider does not accept arranged calls, contacting the service provider to request arranged calls from the service provider; and if it is determined that the service provider accepts arranged calls, requesting an arranged call.2008-09-04
20080212757METHOD OF AND SYSTEM FOR PROVIDING SERVICES IN A COMMUNICATIONS NETWORK - A system for providing services in a communications network includes a service processing function, a universal directory function, and a nodal resource manager. The service processing function receives service requests, formulates requests for interworking functions based upon service requests, and formulates resource requests based upon service requests and interworking functions. The universal directory function receives addresses from the service processing function and returns interworking functions based upon addresses. The nodal resource manager receives resource requests and allocates resources to the service processing function in response to resource requests. The nodal resource manager maintains a resource database that includes an entry corresponding to each network resource managed by the nodal resource manager.2008-09-04
20080212758TELECOMMUNICATION AND ADVERTISING BUSINESS MODEL AND METHOD OF UTILIZING SAME - A telecommunication and advertising business model and method of utilizing same that permits users to make telephone calls for a predetermined amount of time according to the destination of the call. The telecommunication and advertising business model is controlled by an on-line database system and comprises customers, and companies that pay for advertising through a system.2008-09-04
20080212759ANONYMITY ENGINE FOR ONLINE ADVERTISING, SALES AND INFORMATION DISTRIBUTION - Systems and methods for providing online sales and advertising are disclosed. A system may be configured to provide an online advertisement and, responsive to a received request for information regarding the advertisement from a potential buyer, provide information related to the advertisement to a seller to facilitate a sales transaction. The response may be facilitated by customized ANI processing.2008-09-04
20080212760METHOD OF SCHEDULING CALLS - An apparatus and method are provided for scheduling calls. The method includes the steps of providing a calling period with a plurality of sub-periods and determining a set of historical call completion ratios associated with the plurality of sub-periods. The method further includes the steps of exponentially scaling the respective determined call completion ratios and placing a number of calls during each sub-period of the calling period where the number of calls placed during each sub-period is based upon the respective exponentially scaled call completion ratio.2008-09-04
20080212761METHOD AND SYSTEM FOR VERIFICATION OF REMOTE PARTY IDENTIFICATION - A method for processing a transaction includes receiving validation requests, automatically initiating one or more callbacks to an authorized transactor, and validating one or responses from the authorized transactor. The automatic initiation is in response to the validation requests, and according to pre-selected authorized transactor information. The responses from the authorized transactor are in reply to the callbacks. The validation is based upon the pre-selected authorized transactor information.2008-09-04
20080212762SYSTEM AND METHOD FOR CALL INITIATION USING AVAILABILITY INFORMATION - A system and method are provided for initiating a call to an intended called party on one or more alternate numbers based on availability of the called party as determined by the called party's presence server or other database. If the called party is determined to be ‘not available’ and does not have any useful forwarding features enabled on his/her primary line served by a primary number, calls are attempted on one or more alternate numbers rather than on the primary number.2008-09-04
20080212763Network-based methods and systems for responding to customer requests based on provider presence information - An “always-on” network and associated systems enable customers to compare and select products and services offered by one or more providers faster than previously thought possible. In addition, communication connections may be established between customers and providers in real-time.2008-09-04
20080212764Communication relay apparatus, communication relay method, and computer product - As a result of a power saving technique for a portable dual terminal equipped with both WLAN unit and PHS unit, a call is usually relayed from an S-P gateway to a call receiver terminal via the PSTN, thereby incurring a call charge to the caller. According to the present invention, the call from the S-P gateway to the call receiver terminal (dual terminal) is terminated before a call charge is incurred, and the call receiver terminal calls back the S-P gateway via the IP network or the PSTN. The SIP server, instead of the call receiver terminal, identifies the caller terminal to call back, thereby connecting the call from the call receiver terminal to the caller terminal. In addition to this “callback method”, the present invention further provides “reconnection method”, “reconnection plus call-again method”, and “call-again method”, thus offering four types of methods.2008-09-04
20080212765Directory assistance with advertisement from category related to request category - The current invention is a system for providing telephone directory assistance service in which a telephone user calls to the system and the system will, based on the requested number or type of service, hear a recorded advertisement selected from a category related to the requested service. The advertisements are selected from a databank, which may include any number advertisements, according to selection criteria. After the advertising announcement is completed, the directory assistance call is processed as usual. The selection criteria can include the use of SIC codes.2008-09-04
20080212766Stateless gateways having remote dialog store - Gateway apparatus for facilitating communications using a stateful protocol (e.g., SIP or SIP/SIMPLE protocol). The gateway apparatus includes a plurality of gateway devices and a remote dialog store, wherein each of the plurality of gateway devices comprises export logic for causing dialog information associated with a first received message (e.g., a request or response) to be communicated to the dialog store, and retrieval logic for causing a lookup of the dialog information in response to a second received message, the second received message associated with the first received message. In one example the gateway devices are stateless, thereby relying on the dialog store for validating and routing messages. In another example, the gateway devices are stateful and rely on the dialog store for backup (e.g., if a gateway device crashes). The gateway devices may be configured for receiving and processing messages according to SIP protocol or SIP/SIMPLE protocol.2008-09-04
20080212767METHOD OF ROUTING PROSPECTIVE OR CURRENT CUSTOMER INFORMATION REQUESTS TO FIND THE BEST CURRENTLY AVAILABLE STAFF MEMBER - A method of routing customer inquires for an organization using an inbound or outbound caller or online echatter, typically in a call center, including steps of engaging in a communication with a customer wherein the customer provides an information inquiry, determining a number of staff members of the organization that are appropriate for responding to the inquiry, sending a first electronic message from the call center to each of the number of staff members for determining whether the staff member is immediately available for responding to the inquiry, receiving a second electronic message from one or more responding staff members indicating that the associated staff member is immediately available for responding to the inquiry (a positive behavioral response), selecting the best qualified staff member of those available, and facilitating direct communication between the selected staff member and the prospective customer.2008-09-04
20080212768METHOD AND APPARATUS FOR ADAPTIVE POWER ADJUSTMENT BASED ON REDUCTION OF CROSS-TALK BETWEEN DSLs - An adaptive power adjustment method and means based on reducing crosstalk among DSL lines includes: calculating the crosstalk power spectrum density and the crosstalk function from the neighboring line in current line; calculating the transmission power spectrum density of the current terminal device according to the obtained crosstalk power spectrum density and crosstalk function; and the current terminal device controlling the transmission power based on the transmission power spectrum density. According to the adaptive power adjustment method of the present invention, the transmission power can be increased or decreased. The disadvantageous effect due to the crosstalk among xDSL lines is reduced. Present invention can eliminate or reduce adequately the strong impact on remote terminal application scene, and make the lines achieve the optimum operation state.2008-09-04
20080212769Processing method for message integrity with tolerance for non-sequential arrival of message data - Example embodiments of the present invention disclose a method for processing an application packet for transmission includes receiving a plurality of segments of the application packet in a byte stream, the byte stream including a plurality of blocks, creating a plurality of superblocks within the byte stream by grouping a number of the plurality of blocks within the byte stream, and creating first pseudorandom bits for the plurality of superblocks. The method also includes determining a block number and a superblock number for a beginning of each of the plurality of segments, determining a block number and a superblock number for an ending of each of the plurality of segments in the byte stream.2008-09-04
20080212770Key Information Generating Method and Device, Key Information Updating Method, Tempering Detecting Method and Device, and Data Structure of Key Information - A domain key is used to perform chaining decryption with respect to encrypted content key information (ST2008-09-04
20080212771Method and Devices For User Authentication - For authenticating a user using a communication terminal (2008-09-04
20080212772Image forming apparatus - An image forming apparatus includes a receiving unit for receiving data encrypted with a first encryption method and sent from a host device; a decryption unit for decrypting the data thus encrypted; an embedded data generation unit for re-editing the data thus decrypted to generate embedded information; an embedded information encryption unit for encrypting the embedded information with a second encryption method; and an image forming unit for forming the embedded information thus encrypted on a medium as a base emblem pattern.2008-09-04
20080212773Parallel data stream decryption device - A parallel data stream decryption device which allows a user to decrypt radar video data obtained from a missile seeker which was encrypted while in a parallel data format. The decryption device has a computer program which decryptes the radar video data contained in an encrypted data file and creates a decrypted binary data file. The computer software then extracts data from the decrypted binary data file and converts the extracted data to an ASCII text file.2008-09-04
20080212774Device for and a Method of Processing an Encrypted Data Stream in a Cryptographic System2008-09-04
20080212775Novel Trick Mode System - A method is described for trick mode playback, the method including selecting a key-frame in a recording substantially in the vicinity of a trick mode playback starting position, preparing a decryption key associated with a key period including the selected key-frame, sending the prepared decryption key to a descrambler, thereby enabling decryption of video beginning at the selected key-frame, sending a first number P seconds of decrypted video frames, starting at the selected key-frame, at a predetermined speed for a predetermined number of seconds, to a video decoder, in parallel to the sending P seconds of video frames, choosing at least a second video section to stream to the video decoder, sending a decryption key associated with the chosen second video section to the descrambler, and repeating the steps of selecting, preparing, sending the prepared decryption key, and sending a first number P seconds of decrypted video frames. Related apparatus and methods are also described.2008-09-04
20080212776ENCRYPTION PROCESSING CIRCUIT AND ENCRYPTION PROCESSING METHOD - An encryption processing circuit includes: a decoder configured to convert a binary input data used for predetermined encryption computing into a first plurality of bit data of a constant hamming weight independently of a hamming weight of the input data; a wiring network configured to receive the first plurality of bit data converted by the decoder, the wiring network further configured, for the purpose of the predetermined encryption computing, to change a bit pattern of the received first plurality of bit data by replacing bit positions of the first plurality of bit data, and to generate a second plurality of bit data; and an encoder configured to convert the second plurality of bit data generated in the wiring network into a binary output data.2008-09-04
20080212777METHODS AND APPARATUS FOR MULTI-LEVEL DYNAMIC SECURITY SYSTEM - Methods and apparatus for converting original data into a plurality of sub-bands using wavelet decomposition; encrypting at least one of the sub-bands using a key to produce encrypted sub-band data; and transmitting the encrypted sub-band data to a recipient separately from the other sub-bands.2008-09-04
20080212778Communication System and Communication Apparatus - A communication system and communication apparatus that can improve the stability and security of communication. In this communication system, a communication apparatus (2008-09-04
20080212779Ordering Content by Mobile Phone to be Played on Consumer Devices2008-09-04
20080212780Homomorphic Encryption For Secure Watermarking - A method and a system for embedding a watermark in a media signal x are disclosed. The method comprises providing an at least partially encrypted media signal c2008-09-04
20080212781System, Method and Apparatus for Decrypting Data Stored on Remobable Media - A technique that decrypts data stored on removable media, if the device on which the encryption was performed is lost, unavailable, or the user credentials are lost. In example embodiment, this is achieved by using the administrator UID, the administrator UDID, the removable media, the names of one or more data files to be decrypted, the administrator Pswd, and a KeyID to decrypt data stored on the removable media associated with a lost or unavailable mobile device on which encryption was performed.2008-09-04
20080212782Approach For Managing Access to Messages Using Encryption Key Management Policies - Controlling access to disseminated messages includes implementing one or more key management policies that specify how various encryption keys are maintained and in particular, when encryption keys are made inaccessible. Deleting a particular key renders inaccessible all copies of messages, known or unknown, associated with the particular key, regardless of the location of the associated messages. A message may be directly or indirectly associated with a deleted key. Any number of levels of indirection are possible and either situation makes the message unrecoverable. The approach is applicable to any type of data in any format and the invention is not limited to any type of data or any type of data format.2008-09-04
20080212783KERBERIZED HANDOVER KEYING IMPROVEMENTS - A media-independent handover key management architecture is disclosed that uses Kerberos for secure key distribution among a server, an authenticator, and a mobile node. In the preferred embodiments, signaling for key distribution is based on re-keying and is decoupled from re-authentication that requires EAP (Extensible Authentication Protocol) and AAA (Authentication, Authorization and Accounting) signaling similar to initial network access authentication. In this framework, the mobile node is able to obtain master session keys required for dynamically establishing the security associations with a set of authenticators without communicating with them before handover. By separating re-key operation from re-authentication, the proposed architecture is more optimized for a proactive mode of operation. It can also be optimized for reactive mode of operation by reversing the key distribution roles between the mobile node and the target access node.2008-09-04
20080212784Parametric Multi-Channel Decoding - A sound decoding device (2008-09-04
20080212785Appliance for Converting Digital Audio Broadcast (Dab) Signals - The invention relates to an appliance (2008-09-04
20080212786METHOD AND APPARATUS TO REPRODUCE MULTI-CHANNEL AUDIO SIGNAL IN MULTI-CHANNEL SPEAKER SYSTEM - A method and an apparatus to reproduce a multi-channel audio signal, in which mixing of a center channel signal is performed with a center channel signal in a home theater system. The method of reproducing a multi-channel audio signal includes calculating a delay value of a center channel signal according to location relationships of a listener, a center channel speaker and other channel speakers, regulating a time delay of the center channel signal according to the calculated delay value, and mixing the time-delay regulated center channel signal with other channel signals.2008-09-04
20080212787EARHEALTH MONITORING SYSTEM AND METHOD I - At least one exemplary embodiment is directed to a method of operating an audio device comprising: calculating estimated sound pressure levels for drive signals directed to an ear canal receiver (ECR) during a time increment Δt; calculating an estimated SPL_Dose during the time increment Δt using the estimated sound pressure levels; and calculating a total SPL_Dose at the time t of the audio device using the estimated SPL_Dose.2008-09-04
20080212788Recording, Synthesis And Reproduction Of Sound Fields In An Enclosure - The invention relates to simulation of sound fields in enclosures, for instance for application in listening tests, where test subjects assess the sound quality or other sound perception characteristics of the sound field. According to a specific embodiment, the system comprises a binaural synthesis portion which synthesises sound for instance from a sound-reproduction equipment based on measured impulse responses of an actual room stored in a data base (2008-09-04
20080212789At-Home Hearing Aid Training System and Method - The present invention is a system for and method of training an individual on the use of a hearing aid. The training is conducted based on the individuals hearing profile such that specific words that are troublesome to the user are played to the user after changing the frequency and amplitude of the words, i.e. the user is trained on how the words will sound after wearing a hearing aid. The user can further fine-tune the frequency and amplitude of the words, and the modifications can be saved and used while ordering and fitting a hearing aid.2008-09-04
20080212790SOUND EFFECT PROCESSING SYSTEM APPLIED TO COMPUTER - A sound effect processing system applied to a computer includes a sound quality processing unit provided on the computer for processing and modifying sound quality as a signal frequency characteristic of sounds being input to or output from the computer, and a hardware sound quality adjustment control interface, via which a user may directly control the sound effect processing system to adjust sound signal frequencies and improve the sound quality without the need of using any software or driver.2008-09-04
20080212791SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD - Disclosed herein is a signal processing apparatus including: a first decimation processing section for generating, based on a digital signal in a first form, a digital signal in a second form; a second decimation processing section for generating, based on the digital signal in the second form, a digital signal in a third form; a first signal processing section for processing the digital signal in the third form; an interpolation processing section for converting a digital signal in the third form outputted from the first signal processing section into a digital signal in the second form; a second signal processing section for processing the digital signal in the second form outputted from the first decimation processing section; and a combining section for combining the digital signals in the second form outputted from the interpolation processing section and the second signal processing section.2008-09-04
20080212792MICROPHONE APPARATUS - A microphone apparatus is obtained capable of preventing howling effectively, while having no time difference between a timing of voice utterance to a microphone and a timing of sound emission from a speaker and having simple and low-cost physical and electrical configurations. There are provided microphone units or microphones disposed at locations with the same acoustic conditions, and switching units disposed corresponding to the microphone units or microphones, respectively, for switching sequentially an audio signal transformed in each of the microphone units or microphones to generate an output signal. The switching units may switch sequentially the audio signal transformed in the microphone unit or microphone at an shorter time interval than a time period from a time point the microphone unit or microphone is turned on to a time point an output thereof grows to reach a maximum level by howling.2008-09-04
20080212793Arrangement structure of sound system in motorcycle - To provide an arrangement structure of a sound system in a motorcycle which can ensure the operability of a sound operation unit while ensuring the visibility of a meter. In a motorcycle which arranges a meter indicating information on a vehicle and a sound operation unit for providing a reproduction operation or the like in a sound system in the vicinity of a steering portion, the meter and the sound operation unit are constituted as bodies separate from each other. The meter and the sound operation unit are arranged, as viewed in the axial direction of a head pipe which supports a steering portion, in front of and behind the head pipe.2008-09-04
20080212794AUDIO PROCESSING APPARATUS - A signal processing apparatus includes sound collecting elements, a noise detector for detecting a level of noise in a low-frequency band of audio signals output from the sound collecting elements, a noise reduction unit for reducing the noise in the audio signals in accordance with a signal output from the noise detector, a converter for converting the audio signals output from the noise reduction unit into pieces of audio data corresponding to channels including a low-frequency channel and other channels, a low-frequency channel controller for controlling a level of the audio data corresponding to the low-frequency channel in accordance with the level of the noise detected using the noise detector, and a level controller for controlling the level of the audio data of the low-frequency channel output from the low-frequency channel controller and levels of the pieces of audio data corresponding to the other channels output from the converter.2008-09-04
20080212795Transient detection and modification in audio signals - A system and method are disclosed for transient detection and modification in audio signals. Digital signal processing techniques are used to detect transients and modify an audio signal to enhance or suppress such transients, as desired. A transient audio event is detected in a first portion of the audio signal. A graded response to the detected transient audio event is determined. The first portion of the audio signal is modified in accordance with the graded response. The extent of enhancement or suppression (as applicable) may be determined at least in part by a measure of the significance or magnitude of the transient.2008-09-04
20080212796Auditory sense training method and sound processing method for auditory sense training - An auditory sense training device 2008-09-04
20080212797BASS BOOST FILTERING TECHNIQUES - Bass frequencies of audio can be boosted using various techniques and tools. The described techniques and tools can be applied separately or in combination. For example, bass frequencies of audio can be boosted using an integer bass boost filter by receiving user-settable parameters, such as “c” and “s” coefficients, and implementing the integer bass boost filter using a coupled form structure implementation and the user-settable parameters. Bass frequencies of audio can also be boosted using an integer bass boost filter that is configured to use any of plural coupled form structure implementations. Bass frequencies of audio can be also be boosted using a linear combination of an input audio signal and output of a high-pass filter.2008-09-04
20080212798System and Method for Intelligent Equalization - An equalizer/mixer receives an input signal from a musical source and equalizes the input signal based on the musical source using equalization parameters associated with the musical source. User-adjustable equalization controls may be applied where the equalization parameters defining the controls are associated with the musical source.2008-09-04
20080212799AUDIO COMPRESSOR WITH FEEDBACK - An audio compressor may regulate the level of an audio input signal depending on whether the level is above or below a threshold value. The audio compressor may control a pumping that is created when regulating a dynamic range of an audio signal with the threshold value. A feedback loop connecting the signal output from the audio compressor with a release filter may be used to modify an effective release time of the signal. A controller may be used that allows a filter coefficient of the release filter to be controlled to adjust the effective release time as a function of the signal output.2008-09-04
20080212800Diaphragm for Speaker, Method for Producing Same, Speaker Using Such Diaphragm, and Apparatus Using Such Speaker - A diaphragm for a loudspeaker contains resin, aramid fibers, and an organic silicon compound binding the resin with the aramid fibers. By this structure, high elasticity and high internal loss as characteristics of the aramid fibers are maintained; flexibility in the setting of properties of the diaphragm is thus increased. Accordingly, a diaphragm securing humidity resistance reliability and strength, and having a superior appearance can be provided.2008-09-04
20080212801Amplifier for Musical Instruments, Particularly a Guitar Amplifier - The invention relates to an amplifier for musical instruments, particularly a guitar amplifier, comprising at least one channel and at least one electronic memory for set parameter values such as delay, reverb, chorus, flanger, tremolo, treble, middle, bass, volume and the like. According to the invention, means are provided with which the storage of the parameter values of at least one channel, preferably of all channels, can be automatically carried out.2008-09-04
20080212802Audio processing system - The audio processing system disclosed in the invention comprises an audio processor and an audio amplifier. The audio processor receives a data signal to generate a processed signal, and comprises at least one gain control circuit and at least one operational amplifier. The gain control circuit generates a gain signal according to a volume control signal, a reference signal, and a feedback signal. The operational amplifier couples to the gain control circuit and amplifies the data signal by the gain signal to generate a processed signal. The audio amplifier couples to the audio processor to receive and amplify the processed signal, wherein an amplified signal is generated.2008-09-04
20080212803Apparatus For Encoding and Decoding Audio Signal and Method Thereof - A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a decoding apparatus, a bit stream containing information as to the applied downmix gain. The decoding apparatus recovers the downmix signal, using the downmix gain information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the encoding apparatus can apply an arbitrary downmix gain (ADG) to the downmix signal, and can transmit a bit stream containing information as to the applied ADG to the decoding apparatus. The decoding apparatus recovers the downmix signal, using the ADG information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the method and/or apparatus can also vary the energy level of a specific channel, and can recover the varied energy level.2008-09-04
20080212804Sound receiver - In a sound receiver, a sound wave is directly received by microphones at a predetermined phase difference. The microphones are arranged in opening cavities of a casing, at positions that are different from the volume center points of the opening cavities. The microphones are supported by supporting springs in a state of not closely contacting inner peripheral walls. The sound wave received by the microphones is input to a signal processing unit and after a signal component in a predetermined low frequency band is removed by a filter, the resulting sound wave is amplified by an amplifier and is made in phase by a phase shifter and output.2008-09-04
20080212805LOUDSPEAKER LINE ARRAY CONFIGURATIONS AND RELATED SOUND PROCESSING - A sound reproduction system includes one or more arrays of drive units, coupled with sound processing allowing improved steerability, directional control, width control, and/or beam overlay. A speaker column may comprise two arrays facing one another, the drive units being perpendicular to the speaker unit front, with the acoustic output of each line array being compressed, turned and output from an elongate slot. The drive units may be staggered with respect to those in the opposing array. The arrays may be arc-shaped else straight. Selective delays to simulate an arced pattern. Differential delays applied to the drive units in a sub-array allow beam steering. Additional drive units, such as high frequency drivers, may be added along the length of the elongate slot or elsewhere to increase the dynamic frequency range of the speaker system. A collocated sound processor and amplifier output stage may be integrated with the speaker unit.2008-09-04
20080212806High-frequency pneumatic loudspeaker for audio broadcasting - A high-frequency pneumatic loudspeaker for sound broadcasting is provided, and comprises a housing, silencer exhaust holes, air inlet port, supporting plate, throat canal, central cone, annular nozzle, obstructing ring, and a voice coil and leads. Lower and an upper press plates hold the obstructing ring and the voice coil in position, a magnet having inner and outer magnetic poles is connected therewith, wherein a small gap exists between the obstructing ring and the end of the annular nozzle. This provides the advantages of both air passage area modulation by a sleeve air valve and airstream direction modulation by jet obstruction, reduces airstream consumption, improves air-sound conversion efficiency, and improves structures of an annular air flow-splitter, voice coil and leads. A cooling system is provided to improve high-frequency modulation sensitivity, operation stability, and/or extended fault-free operation time.2008-09-04
20080212807Micromachined Acoustic Transducers - The present invention relates to an acoustic transducer that includes one or more capsules, side walls and a backing plate. Each capsule contains a cavity formed by the side walls and a plurality of film stacks. Each film stack has one or more membranes that can be a piezoelectric layer. Two or more of the film stacks that form the first cavity faces each other. A film stack and the backing plate face each other and form the wall of a second cavity. The transducers of this invention have a broadband response, can radiate sounds uni-directionally, and produce high quality sounds at low frequencies and at high intensities. They can be driven by AC signals. They can be fabricated using conventional integrated circuit manufacturing processes and therefore can be mass produced easily and inexpensively.2008-09-04
20080212808Diaphragm, diaphragm assembly and electroacoustic transducer - A slender-type diaphragm longer in a longitudinal direction and shorter in a transversal direction in relation to the longitudinal direction, has a base member and a slant member. The base member has a pair of extending members provided in parallel in the longitudinal direction as facing each other, and a curved section that protrudes toward a first side of the diaphragm in a vibration direction of the diaphragm from a first plane that includes the extending members, the vibration direction being perpendicular to the longitudinal and transversal directions. The slant member has a slant surface in relation to the first plane and connected to the base member in a manner that the slant member surrounds the base member in a second plane parallel to the first plane, the slant member having a curved surface in a cross section thereof in relation to a cross section of the base member in the transversal direction.2008-09-04
20080212809HEADPHONE SURROUND USING ARTIFICIAL REVERBERATION - A surround experience for headphones can be created using various techniques and tools. The described techniques and tools can be applied separately or in combination. For example, a surround experience can be created by splitting input audio channel signals into high-pass and low-pass signals. The low-pass signals can undergo cross-mixing and artificial reverberation. The artificial reverberation can apply different delay profiles to the low-pass audio signals. The high-pass and low-pass audio signals can be combined to generate output audio channel signals. A surround experience can be crated using a system comprising an input module, a crossover module, a channel cross-mixing module, a reverberation module, and an adder module.2008-09-04
20080212810Binaural Hearing Aid System with Coordinated Sound Processing - The present invention relates to a binaural hearing aid system comprising a first hearing aid and a second hearing aid, each of which comprises a microphone and an A/D converter for provision of a digital input signal in response to sound signals received at the respective microphone in a sound environment, a processor that is adapted to process the digital input signals in accordance with a predetermined signal processing algorithm to generate a processed output signal, and a D/A converter and an output transducer for conversion of the respective processed sound signal to an acoustic output signal, and a binaural sound environment detector for binaural determination of the sound environment surrounding a user of the binaural hearing aid system based on at least one signal from the first hearing aid and at least one signal from the second hearing aid for provision of outputs for each of the first and second hearing aids for selection of the signal processing algorithm of each of the respective hearing aid processors so that the hearing aids of the binaural hearing aid system perform coordinated sound processing.2008-09-04
20080212811BINAURAL SIGNAL ENHANCEMENT SYSTEM - A signal processing system, such as a hearing aid system, adapted to enhance binaural input signals is provided. The signal processing system is essentially a system with a first signal channel having a first filter and a second signal channel having a second filter for processing first and second channel inputs and producing first and second channel outputs, respectively. Filter coefficients of at least one of the first and second filters are adjusted to minimize the difference between the first channel input and the second channel input in producing the first and second channel outputs. The resultant signal match processing of the signal processing system gives broader regions of signal suppression than using the Wiener filters alone for frequency regions where the interaural correlation is low, and may be more effective in reducing the effects of interference on the desired speech signal. Modifications to the algorithms can be made to accommodate sound sources located to the sides as well as the front of the listener. Processing artifacts can be reduced by using longer averaging time constants for estimating the signal power and cross-spectra as the signal-to-noise ratio decreases. A stability constant can also be incorporated in the transfer functions of the first and second filters to increase the stability of the signal processing system.2008-09-04
20080212812Hearing apparatus having a receiver compensation coil - A receiver of a hearing apparatus and in particular a hearing device is to be shadowed in a simple fashion against other magnetically sensitive components. To this end, an electrical coil is provided, which is attached directly to a segment of the receiver housing. The principle axis of the electrical coil is at right angles to the surface of the segment of the receiver housing. The electrical coil is also connected in series to the receiver. For compensation purposes, the electrical coil forms a corresponding counter field for the interference field of the receiver. A compensation coil of this type is easy to assemble and space-saving.2008-09-04
20080212813Snap-on fastening device for hearing device - With housing elements of a hearing device which are fastened to a frame for accommodating internal components of the hearing device, the use of a large number of additional parts is problematic because of the risk of losing parts. In accordance with the invention a snap-on fastening means is used to fasten a housing element to the frame of the hearing device, with an opening being provided in the housing element and the frame for accommodating the snap-on fastening means.2008-09-04
20080212814Differential directional microphone system and hearing aid device with such a differential directional microphone system - A differential direction microphone system for a hearing aid device is described, comprising: a first directional microphone stage with a first differential directional microphone, and a second directional microphone stage with a further differential directional microphone, with the second directional microphone stage being connected downstream from the first directional microphone stage, where the directivity of the first directional microphone stage is essentially oriented in the opposite direction to the directivity of the second directional microphone stage, with the differential direction microphone system having a directional characteristic, of which the directivity is essentially orthogonal to an axis predetermined by the directivities of the first and the second directional microphone stage.2008-09-04
20080212815APPARATUS FOR TRANSMITTING AND RECEIVING SOUND - The apparatus for transmitting and receiving sound is disclosed, wherein a directional microphone for detecting sound for transmission is applied and a sound output unit for outputting the received sound is arranged at a side of the directional microphone where sensitivity is low, thereby preventing sound coupling for received sound and sound for transmission without recourse to complicated signal processing to attenuate the echo and howling.2008-09-04
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