51st week of 2008 patent applcation highlights part 31 |
Patent application number | Title | Published |
20080310554 | Method and apparatus for multiple antenna communications, and related systems and computer program - An embodiment of an arrangement for detecting sequences of digitally modulated symbols from multiple sources. The arrangement identifies a suitable set of candidate values for at least one transmitted sequence of symbols and determines for each candidate value a set of sequences of transmitted symbols. The arrangement estimates at least one further set of sequence of transmitted symbols, calculates a metric for each sequence of transmitted symbols and selects the sequence that maximizes the metric. At the end, a-posteriori bit soft output information for the selected sequence is calculated from the metrics for said sequences. Generally, these calculations are base on the information coming from a channel state information matrix and a-priori information on said modulated symbols from a second module, such as a forward error correction code decoder. | 2008-12-18 |
20080310555 | DISTRIBUTED DECODING DEVICE USING MULTI-CORE PROCESSOR AND METHOD FOR THE SAME - Provided is a distributed decoding device using a multi-core processor, including a multi-core processor that includes a plurality of cores which process data as threads; an MPEG division module that receives MPEG data, extracts decoding information from the MPEG data, divides the MPEG data into individual slices, and generates and provides a single-slice decoding function, which separately decodes one slice, such that threads which decode the divided slices allocated thereto are distributed to the cores within the multi-core processor; a memory that includes a plurality of buffers which receive the slices from the MPEG data division module to store therein and provide the stored slices to the cores of the multi-core processor; and a merging module that merges the data decoded through the cores of the multi-core processor. | 2008-12-18 |
20080310556 | Apparatus and method for detecting signal in multiple-input multiple-output (MIMO) wireless communication system - Receiving apparatus and method in a Multiple-Input Multiple-Output (MIMO) wireless communication system are provided. The receiver having N-ary receive antennas includes a decomposer for decomposing a channel matrix to a matrix Q and a matrix R through a QR decomposition; a detector for determining a candidate group of an n-th phase by estimating a plurality of transmit signal vectors by substituting a plurality of transmittable symbols into symbol combinations of a candidate group of a (n−1)-th phase as an n-th symbol and detecting (n+1)-th through N-th symbols using characteristics of the matrix R; a calculator for calculating square Euclidean distance values between the transmit signal vectors and a receive signal vector; and a determiner for determining the candidate group of the n-th phase by selecting transmit signal vectors having the smallest square Euclidean distance value among the transmit signal vectors. | 2008-12-18 |
20080310557 | Carrier selection for multiple antennas - A method and apparatus is disclosed to process a received single stream communication signal and/or a multiple stream communication. A communications receiver is configured to receive the received communication signal. A communications receiver determines whether the received communication signal includes a single stream communication signal or a multiple stream communication signal. The communications receiver determines whether a received communication signal complies with a known single stream communications standard. The communications receiver determines whether the received communication signal complies with a known multiple stream communications standard. The communications receiver decodes the received communication signal according to the known single stream communications standard upon determining the received communication includes the signal single stream communication signal. The communications receiver decodes the received communication signal according to the known multiple stream communications standard upon determining the received communication includes the multiple stream communication signal. | 2008-12-18 |
20080310558 | Apparatus to reconfigure an 802.11a/n transceiver to support 802.11j/10 MHz mode of operation - A method and apparatus is disclosed to dynamically reconfigure a communications receiver to support one or more single stream modes of operation, multiple stream modes of operation, and/or propriety modes of operation. The communications receiver is configured to support according to a first single stream mode of operation, multiple stream mode of operation, and/or proprietary mode of operation according to a known single stream communications standard, a known multiple stream communications standard and/or a proprietary communications standard. The communications receiver may receive a single stream communications signal and/or a multiple stream communications signal having a second single stream mode of operation, multiple stream mode of operation, and/or proprietary mode of operation according to a known single stream communications standard, a known multiple stream communications standard and/or a proprietary communications standard. The communications receiver may be dynamically re-configured to the second single stream mode of operation, multiple stream mode of operation, and/or proprietary mode of operation to process the single stream communications signal and/or a multiple stream communications signal. | 2008-12-18 |
20080310559 | Gain control for reduced interframe spacing (RIFS) - A method and apparatus is disclosed to recover at least one information payload from a frame and/or to configure one or more reception parameters to receive a future frame to support RIFS. A physical layer device (PHY) receives at least a training sequence embedded in the frame of a transmitted communication signal using a receiver filter bandwidth corresponding to a variable filter training sequence bandwidth. The PHY determines an amount of gain necessary to recover an information payload embedded in the frame based on the recovery of the training sequence. The PHY determines an amount of gain necessary to recover an information payload embedded in the frame based on the recovery of the preamble. A previous communications receiver gain is adjusted by the difference between the amount of gain necessary to recover the information payload and the previous communications receiver gain. The PHY adjusts the receiver filter bandwidth from the variable filter training sequence bandwidth to a variable filter information payload bandwidth. The PHY recovers the at least one information payload embedded in frame using the variable filter information payload bandwidth. The PHY adjusts the receiver filter bandwidth from the information payload bandwidth to the variable filter training sequence bandwidth to receive the future frame. | 2008-12-18 |
20080310560 | Apparatus for Estimating Phase Offset of Multiple Survival Paths and Digital Wired/Wireless Communication System Using the Same - Provided is an apparatus for estimating phase offsets of multiple survival paths and a satellite communication system using the same. The apparatus includes: upper/lower decoding units for obtaining a phase offset estimation value and estimating phase offsets of each survival path based on a stored parameter estimation value of a previous state inputted from an external device; an interleaving/de-interleaving unit for minimizing correlation between data used to estimate a parameter according to the estimated phase offset value from the upper/lower decoding means; and a phase offset outputting unit for outputting the phase offset value estimated through the upper decoding unit and the de-interleaving unit. | 2008-12-18 |
20080310561 | SIMPLIFIED RACH PREAMBLE DETECTION RECEIVER - A low complexity RACH preamble detector is described herein. The RACH preamble detection algorithm uses the peak detection of the time domain correlation function through frequency domain processing. The frequency domain processing considers the reference signals generated directly from frequency domain CAZAC sequence or time domain CAZAC sequence with DFT conversion. A low-complexity poly-phase LPF along with down sampling is implemented before the FFT to reduce the required length of the long FFT operation N-folded. | 2008-12-18 |
20080310562 | Efficient Covariance Computation by Table Lookup - The impairment processor described herein uses a look-up table operation to reduce the computational complexity associated with determining an impairment correlation between first and second sample streams for an interference rejection receiver. One exemplary impairment processor iteratively computes multiple partial impairment correlations based on values selected from look-up table(s), and combines the partial impairment correlations to obtain a final impairment correlation between the first and second sample streams. During each iteration, the impairment processor computes a pair of delay offsets corresponding to the respective processing and path delays of the first and second sample streams, computes an index value as a function of a difference between the pair of delay offsets, selects a pre-computed value from the look-up table based on the index value, determines a pulse correlation estimate based on the selected pre-computed value, and determines the partial impairment correlation for that iteration based on the pulse correlation estimate. | 2008-12-18 |
20080310563 | BROADCAST CHANNEL ESTIMATOR - A communication system comprises a receiver, which may generate broadcast coefficients that represent the characteristics of a channel using the channel information encoded in the segment synchronization units. The receiver may also use the channel information encoded in both the segment synchronization units and the field synchronization units to accurately determine the characteristics of a long channel. | 2008-12-18 |
20080310564 | Processing data in a digital communications system - A method of processing a signal in a wireless digital communications system, wherein a source of disturbance affects differently at least first and second portions of a received signal carrying user data and/or control data, the method comprising: identifying the second portion of the received signal, most affected by the source of disturbance; generating a first estimate of the disturbance (P | 2008-12-18 |
20080310565 | Dynamic optimization of overlap-and-add length - A method of adjusting overlap-and-add length for zero-padded suffixes. The method includes, based on a channel impulse response, estimating an effective channel length. When the effective channel length is less than a default overlap-and-add length and greater than a minimum length, the method includes setting the overlap-and-add length to the effective channel length. When the effective channel length is less than the minimum length, the method includes setting the overlap-and-add length to the minimum length. When the effective channel length is greater than the default overlap-and-add length, the method includes setting the overlap-and-add length to the default overlap-and-add length. | 2008-12-18 |
20080310566 | FREQUENCY SYNCHRONIZING CIRCUIT, METHOD, AND RECEIVING APPARATUS USING THE CIRCUIT AND THE METHOD - A frequency synchronizing circuit includes a first raising unit configured to raise a received signal by a first power to obtain a first raised signal, a filter to suppress noise in the first raised signal to obtain a filtered signal, a second raising unit configured to raise the filtered signal by a second power to obtain a second raised signal, an estimating unit configured to estimate a frequency offset in the received signal based on the second raised signal to obtain an estimated value, and an offset-cancelling unit configured to cancel the estimated value from the received signal, to output an offset cancelled signal. | 2008-12-18 |
20080310567 | METHOD FOR IMPROVING SYNCHRONIZATION AND INFORMATION TRANSMISSION IN A COMMUNICATION SYSTEM - The present invention relates to a method for improving synchronization and information transmission in a communication system, including: generating a signal with a time symmetric property based on a uniquely identifiable sequence c(l) from a set of sequences, sending the signal over a communication channel, receiving the signal, calculating and storing a correlation, finding the delay that result in a maximum correlation magnitude, detecting the unique sequence c(l) from the set of sequences. The method is distinguished by: generating the signal with a centrally symmetric part, s(k), the centrally symmetric part s(k) being symmetric in the shape of the absolute value thereof, storing the reverse differential correlation D(p) from a block of N received signal samples r(k), k=0, 1, . . . , N−1. The present invention also relates to a transmitter unit and a receiver unit of a communication system, and a radio communication system. | 2008-12-18 |
20080310568 | Digital Sampling Apparatuses and Methods - Methods and apparatus for sampling and determining the frequency of periodic digital signals. An exemplary digital sampling apparatus includes a polyphase sampling apparatus configured to sample a periodic digital signal according to a polyphase clock system having multiple phases. The multiple phases provided by the polyphase clock system are successively distributed in time so that consecutive phases have a periodic phase difference. By using a polyphase clock system, a sampling rate that is equivalent to a sampling clock having a period equal to the phase difference in time between phases of the polyphase clocks is realized. Accordingly, the effective sampling rate of a given periodic digital signal can be increased, or the sampling of higher frequency periodic digitals signals can be achieved, while the underlying logic circuitry used to capture the samples is clocked at a much lower rate. | 2008-12-18 |
20080310569 | Input/output circuit - Disclosed is a SERDES circuit including a clock and data recovery circuit that allows operational margin in temporal and voltage directions to be measured, using a phase offset signal and a threshold voltage control signal, a pre-emphasis driver circuit and an equalizer circuit in order to reduce ISI on a transmission line, and an optimization control circuit for controlling the overall circuit. The optimization control circuit controls an equalizer control signal that is for adjusting characteristics of the equalizer circuit and a driver control signal that is for adjusting characteristics of the pre-emphasis driver circuit and sets the equalizer control signal and driver control signal so that the operational margin of the clock and data recovery circuit is maximized. | 2008-12-18 |
20080310570 | DEVICE AND METHOD FOR PREVENTING LOST SYNCHRONIZATION - A method and device for preventing a defect in a CDR circuit from hindering synchronization between connection nodes and for preventing connection failures. The CDR circuit generates a synchronization clock from received data. A connection failure processor performs a connection failure process if synchronization based on the synchronization clock between connection nodes is not established when a first predetermined time from when the reception of the received data is started elapses. A correction processor corrects operation of the CDR circuit if synchronization based on the synchronization clock between connection nodes is not established when a second predetermined time, which is shorter than the first predetermined time, from when the reception of the received data is started elapses. | 2008-12-18 |
20080310571 | Pulsed Serial Link Transmitting Data and Timing Information on a Single Line - A method of encoding data and timing information on a single line comprising: asserting a first edge on the single line to encode said timing information; asserting a second edge on the single line a selectable time period after said first edge, said selectable time period representing said data, characterised in that: said step of asserting said first edge comprises supplying a clock signal to a clock input of a flip-flop; and the step of asserting the second edge comprises supplying the output of the flip-flop to an input of a programmable delay line having a data input connected to receive said data and an output connected to a reset input of the flip-flop, whereby an output of the flip-flop provides said encoded data and timing information on the single line. | 2008-12-18 |
20080310572 | FRAME SYNCHRONIZATION APPARATUS AND ITS CONTROL METHOD - A frame synchronization apparatus for controlling a frame synchronization process carried out on an input signal, the frame synchronization apparatus including: a correlation-value computation section; an IQ component select section; and a synchronization-signal outputting section. | 2008-12-18 |
20080310573 | POLAR MODULATION / ONE-POINT FREQUENCY MODULATION WITH FLEXIBLE REFERENCE FREQUENCY - Apparatuses and methods for operating a modulation system using a flexible reference frequency signal are disclosed. A modulation system uses a phase-locked loop (PLL). An internal reference signal source is configured to provide an internal reference signal having an internal frequency that is substantially independent of the reference frequency. A frequency signal source is configured to provide a plurality of first samples of the frequency signal taken at a first sampling frequency according to the internal reference signal. A resampling device is configured to receive and resample the plurality of first samples to generate a plurality of second samples taken at a second sampling frequency according to the reference frequency. A loop gain compensation device is configured to receive the reference frequency and apply an offset gain to inversely offset a change in PLL loop gain responsive to a change in the reference frequency. | 2008-12-18 |
20080310574 | Semiconductor memory device - A semiconductor memory device stably performs a read operation at a high frequency, thereby reducing a current consumption. The semiconductor memory device is capable of performing the read operation stably by controlling a data eye. The semiconductor memory device includes an output unit and a data eye control unit. The output unit outputs data in synchronization with clock signals. The data eye control unit controls a data eye of the data output by the output unit. | 2008-12-18 |
20080310575 | Nuclear Reactor, In Particular a Liquid-Metal-Cooled Nuclear Reactor - A nuclear reactor ( | 2008-12-18 |
20080310576 | SYSTEM AND METHOD FOR DETERMINING COOLANT LEVEL AND FLOW VELOCITY IN A NUCLEAR REACTOR - A boiling water reactor includes a reactor pressure vessel having a feedwater inlet for the introduction of recycled steam condensate and/or makeup coolant into the vessel, and a steam outlet for the discharge of produced steam for appropriate work. A fuel core is located within a lower area of the pressure vessel. The fuel core is surrounded by a core shroud spaced inward from the wall of the pressure vessel to provide an annular downcomer forming a coolant flow path between the vessel wall and the core shroud. A probe system that includes a combination of conductivity/resistivity probes and/or one or more time-domain reflectometer (TDR) probes is at least partially located within the downcomer. The probe system measures the coolant level and flow velocity within the downcomer. | 2008-12-18 |
20080310577 | FUEL CHANNEL FASTENER - A fuel channel fastener having a body with a hole, a bolt inserted into the hole, at least two anti-rotation supports attached to the body, a spring configured to attach to the body and to extend away from the body down the sides of a fuel assembly fuel channel, and at least two spring anti-rotation pads connected to the body. | 2008-12-18 |
20080310578 | Pressurizer Heater for the Primary Cooling System of a Pressurized-Water Nuclear Reactor - The invention relates to a heating rod for a pressurizer of a primary cooling system of a pressurized-water nuclear reactor, the rod comprising a metal outer shell ( | 2008-12-18 |
20080310579 | PACE CAPTURE DEVICE FOR ASSISTING WITH A SPORTING ACTIVITY - The present invention includes a system and method for monitoring a user's pace and providing an indication of the user's average pace in conjunction with performing an activity. The method according to one embodiment of the present invention includes monitoring a user's pace relating to the performance of the activity and calculating pace data relating the user. In response to a first signal, the method stores the pace data and in response to a second signal retrieves the pace data. The method then calculates an assistance pace for the user over a defined time interval and transmits an output signal reflecting the assistance pace based the pace data, such as in the example of a golf club assisting in the swinging pace of the golf club. | 2008-12-18 |
20080310580 | NUCLEAR MEDICAL DIAGNOSIS APPARATUS - A nuclear medial diagnosis apparatus is used for performing diagnosis by administering a medicine marked with a radioactive isotope into an examinee and by using an image obtained by detecting gamma rays emitted from a particular organ or tumor where the medicine is accumulated. An image (an image created by an image creation unit) is created by a signal (a signal as an output from a radiation detector) corresponding to the energy of the gamma ray detected by a radiation detector. The image includes a contamination component attributed to gamma scattering in the radiation detector. An image correction operation unit performs a convolution operation to obtain a contamination image. The contamination image is subtracted by a corrected image creation unit. Thus, it is possible to prevent image degradation by the gamma ray scattering in the radiation detector. | 2008-12-18 |
20080310581 | Medical diagnostic system - In a method for operating a medical diagnostic system including an irradiating examination machine and a contrast agent supplying machine, at least one operational parameter is assigned to the examination machine and at least one application parameter is assigned to the contrast agent supplying machine. In at least one embodiment disclosed herein, the operational parameters and the application parameters are concurrently, or even simultaneously, displayed via a display apparatus. | 2008-12-18 |
20080310582 | X-Ray System for the Creation of Diagnostic X-Ray Images Using Contrast Media - An x-ray system is disclosed including a selector for finding an optimum combination between the contrast medium and the energy spectrum of an x-radiation for a scan to optimize the noise-to-contrast ratio. A method for creating X-ray images is also provided. The x-ray images are created with the aid of contrast media by taking into account an optimal combination between the contrast medium and the energy spectrum of an X-radiation used for a scan. A method for the use of a lanthanide-containing complex to produce a contrast medium for optimizing the combination between the contrast medium and the radiation to obtain a maximum contrast-to-noise ratio in an X-ray image is also provided. | 2008-12-18 |
20080310583 | Cardiopulmonary Screening with Feedback From Analysis to Acquisition - In a medical screening workflow, a patient is disposed on a patient support ( | 2008-12-18 |
20080310584 | Tomography Equipment Comprising a Variable Reproduction Geometry - The invention relates to a method for generating 3D tomographic images of an object ( | 2008-12-18 |
20080310585 | DETECTOR ARRAY AND SYSTEM - In some embodiments, an optical mask for a CT detector is disclosed. In some embodiments, the mask is intercalated between a photodiode array and a scintillator array forming the CT detector. In some embodiments, the optical mask may extend along one or more axes and differentially absorbs and/or reflects light emitted from the scintillators at edges of photodiodes forming the diode array, with less absorption or reflection at edges of tiled die forming the diode array than in central portions of each of the die. Through selective absorption and/or reflection, transference of light photons from a scintillator to the photodiode corresponding to a neighboring scintillator is spatially modified, at least partially compensating for spatial differences in crosstalk signals between adjacent pairs of photodiode/scintillator cell elements. This reduction in differential crosstalk reduces artifacts in a reconstructing data descriptive of internal portions of a subject, which improves diagnostic value of the data. | 2008-12-18 |
20080310586 | APPARATUS AND METHOD FOR PROVIDING A SHIELDING MEANS FOR AN X-RAY DETECTION SYSTEM - An apparatus and method for providing an x-ray shield means in an x-ray detection system. An x-ray inhibiting container for use in a computed tomography system is provided, the container comprising: a peripheral wall; and a bottom, wherein the peripheral wall and bottom define a receiving area, and a forward portion and a rearward portion of the peripheral wall comprise an x-ray inhibiting material. The system comprising: a computed tomography scanner, configured to produce x-ray projection data as an object is passed through the computed tomography scanner, the computed tomography scanner comprising: a gantry having an opening; and an x-ray source configured to project a fan beam of x-rays towards a detector array disposed on an opposite side of the gantry opening, the x-ray source and detector array being mounted to the gantry about the opening; a structure defining an internal volume being configured to receive at least the gantry of the computed tomography scanner therein, the structure having an input opening and an outlet opening, the structure comprising an x-ray shielding material; and a motorized conveyor for passing a plurality of tubs through the input opening to the outlet opening, wherein each of the tubs comprises a peripheral wall and a bottom to define a tub volume and a forward portion and a rearward portion of the peripheral wall is configured to substantially cover the input opening or the outlet opening as the plurality of tubs are passed through the structure, wherein the forward portion and the rearward portion each comprise an x-ray shielding material. | 2008-12-18 |
20080310587 | X-ray fluorescence apparatus - An X-ray fluourescence (XRF) apparatus uses both an analyzer crystal ( | 2008-12-18 |
20080310588 | XRF analyzer - A method of analyzing a fluid sample by XRF includes the steps of: depositing the fluid sample onto a substrate, exposing the sample and the substrate to an x-ray emission, generating a first analytical signal responsive to the x-ray emission, providing an operable first reference material having a first extended position above the substrate and in communication with the x-ray emission, periodically extending the first reference material to its first extended position, generating a first calibration signal, providing an operable second reference material having a first extended position below the substrate and in communication with the x-ray emission, and periodically extending the second reference material to its first extended position and generating at least one second calibration signal. The first and second calibration signals are compared with predetermined values. The first and second reference materials also have second retracted positions. | 2008-12-18 |
20080310589 | METHOD FOR INSPECTING LUGGAGE - A method for determining a change in position of an item of luggage, examined by a first examination system, in order to thereafter examine only a suspect region of the item of luggage in a secondary examination system. | 2008-12-18 |
20080310590 | AUTOMATED SOFTWARE SYSTEM FOR BEAM ANGLE SELECTION IN TELETHERAPY - A novel approach to generating radiation treatment plans through a nested partitions framework provides an optimization of radiation delivery. The nested partitions approach couples beam angle selection and dose optimization to solve treatment planning problems. An optimal beam angle selection is provided to best treat tumors, while minimizing exposure to the surrounding healthy tissues. | 2008-12-18 |
20080310591 | Backscatter Inspection Portal - A system and method for inspecting an object with multiple sources of substantially coplanar penetrating radiation. Irradiation of the inspected object by the sources is temporally sequenced such that the source of detected scattered radiation is unambiguous. Thus, multiple views of the inspected object may be obtained and image quality may be enhanced. | 2008-12-18 |
20080310592 | Digital x-ray imaging system and method for generating an image dataset for reproducibly generating x-ray images - Setting information relating to mechanical settings of a digital x-ray imaging system, settings of a control variable or settings of an image processing system, as had been performed during the recording of the relevant digital x-ray image, are stored for a digital x-ray image. It is thereby made possible for an operator to read out the setting information and restore the x-ray image recording situation. The setting conditions can even be restored automatically. This also applies to at least the major part of the mechanical settings. | 2008-12-18 |
20080310593 | X RAY TUBE ASSEMBLY AND METHOD OF MANUFACTURING AND USING THE X RAY TUBE ASSEMBLY - In one embodiment, an X ray tube assembly is provided. The X ray tube assembly comprises an evacuated envelope, an anode disposed at a first end of the evacuated envelope and a cathode assembly disposed at a second end of the evacuated envelope. The cathode assembly comprises a cathode filament and a cathode cup defining a plurality of electrically isolated deflection electrodes. Further, the cathode cup comprises at least two portions, a first portion comprising an electrically conductive material and a second portion comprising an electrically insulating material. In another embodiment, a method of manufacturing the X ray tube assembly is provided. | 2008-12-18 |
20080310594 | SCANNING X-RAY RADIATION - X-ray radiation is generated at a target that emits x-ray radiation in response to being struck by accelerated electrons, the electrons being emitted by a cathode that emits electrons in response to being illuminated by electromagnetic radiation from a source, and the x-ray radiation is moved by orienting a surface that directs the electromagnetic radiation from the source toward the cathode. | 2008-12-18 |
20080310595 | THIN WALLED TUBE RADIATOR FOR BREMSSTRAHLUNG AT HIGH ELECTRON BEAM INTENSITIES - Methods and systems for generating bremsstrahlung with enhanced photon flux in a narrow cone at forward angles utilize a thin target of a high-Z material such as gold as radiator, supported on a tube of a low-Z material such as titanium, which tube contains a circulating fluid such as water which acts as a coolant and also may absorb the incident electron beam. | 2008-12-18 |
20080310596 | X-Ray Tube Cooling Apparatus - A cooling apparatus ( | 2008-12-18 |
20080310597 | Radiation attenuation for a scanning device - A scanning device for providing a radiation scan to an article is disclosed. The scanning device includes a housing, a transport system and a radiation attenuation system. The housing has a entrance port and an exit port and encloses a radiation analysis unit. The transport system is configured to move the article from the entrance port, through the housing and to the exit port. The radiation attenuation system is supported at one of the entrance port and the exit port. The radiation attenuation system includes at least one substantially rigid panel rotatable relative to the housing and a counter balance coupled to the panel to at least partially offset the weight of the panel. | 2008-12-18 |
20080310598 | Method for calibrating dual-energy CT system and method of image reconstruction - A method for calibrating a dual-energy CT system and an image reconstruction method are disclosed to calculate images of atomic number and density of a scanned object as well as its attenuation coefficient images at any energy level. The present invention removes the effect from a cupping artifact due to X-ray beam hardening. The method for calibrating a dual-energy CT system is provided comprising steps of selecting at least two different materials, detecting penetrative rays from dual-energy rays penetrating said at least two different materials under different combinations of thickness to acquire projection values, and creating a lookup table in a form of correspondence between said different combinations of thickness and said projection values. The image reconstruction method is provided comprising steps of scanning an object with dual-energy rays to acquire dual-energy projection values, calculating projection values of base material coefficients corresponding to said dual-energy projection values based on a pre-created lookup table, and reconstructing an image of base material coefficient distribution based on said projection values of base material coefficients. In this way, images of atomic number and density of an object as well as its attenuation coefficient images can be calculated from the images of the distribution of base material coefficients. Compared with the prior art technique, the method proposed in the present invention has advantages of simple calibration procedure, high calculation precision and invulnerability to X-ray beam hardening. | 2008-12-18 |
20080310599 | System and Method for Indicating Emergency Call Back to User Equipment - A method is provided for indicating an IMS (Internet Protocol Multimedia Subsystem) emergency call back to a user equipment and an access network. The method comprises including in a message from a PSAP (Public Safety Answering Point) to the user equipment and the access network an indication that the emergency call back is from the PSAP. | 2008-12-18 |
20080310600 | Diagnostic and intervention tools for emergency medical dispatch - A system and method assists an emergency medical dispatcher in responding to emergency calls. A computer implemented emergency medical dispatch protocol includes interrogatories for a dispatcher to ask a caller to generate an appropriate response. A diagnostic tool is provided to determine a vital sign of a patient based on a timer and caller relayed information about the patient. An intervention tool is provided to administer assistance and determine a compression rate based on a timer and caller relayed information. | 2008-12-18 |
20080310601 | VOICE BARGE-IN IN TELEPHONY SPEECH RECOGNITION - An interactive voice response system is described that supports full duplex data transfer to enable the playing of a voice prompt to a user of telephony system while the system listens for voice barge-in from the user. The system includes a speech detection module that may utilize various criteria such as frame energy magnitude and duration thresholds to detect speech. The system also includes an automatic speech recognition engine. When the automatic speech recognition engine recognizes a segment of speech, a feature extraction module may be used to subtract a prompt echo spectrum, which corresponds to the currently playing voice prompt, from an echo-dirtied speech spectrum recorded by the system. In order to improve spectrum subtraction, an estimation of the time delay between the echo-dirtied speech and the prompt echo may also be performed. | 2008-12-18 |
20080310602 | MESSAGING WITH A LOCKED COMMUNICATION DEVICE - A communication device supports leaving a message using a communication device input interface when the device is in a locked state. The communication device may be a network telephone having a display interface and a user input interface. The communication device may be configured to transition to a locked state, store a message based on input received at the locked communication device, and present the message to an intended recipient. The message may be presented to the intended recipient upon unlocking the device (e.g., stored locally and presented when the phone is unlocked), presented to the intended recipient in accordance with communication settings (e.g., delivered to an email account, cell phone, etc.), or otherwise delivered. | 2008-12-18 |
20080310603 | SYSTEM AND METHOD FOR MANAGEMENT OF CALL DATA USING A VECTOR BASED MODEL AND RELATIONAL DATA STRUCTURE - A system and method for representing call content in a searchable database includes transcribing call content to text. The call content is projected to vector space, by creating a vector by indexing the call based on the content and determining a similarity of the call to an atomic-class dictionary. The call is classified in a relational database in accordance with the vector. | 2008-12-18 |
20080310604 | Systems and Methods to Selectively Provide Telephonic Connections - Methods and apparatuses to selectively provide communication connections based on an automated procedure to test whether a caller is a human or a machine. One embodiment includes: receiving at a connection server a telephone call from a caller; presenting a message to the caller in response to the telephone call; receiving from the caller a response to the message; and comparing the received response with a predetermined response to determine whether the caller is a human or a machine. | 2008-12-18 |
20080310605 | CALL CONNECTION SYSTEM & METHOD - A method for establishing a communication connection between a first communication device and a second communication device, the method comprising requesting contact information for a second communication device, during a first communication connection established between a first communication device and a third communication device; receiving the contact information from the third communication device, in response to a third party interacting with the third communication device during the first communication connection; and establishing a second communication connection between the first communication device and the second communication device based on the contact information received from the third communication device, wherein the second communication connection is established by way of the first communication device independently initiating communication with the second communication device. | 2008-12-18 |
20080310606 | Communication assistance system and method - A communication assistance system provides access to information corresponding to a plurality of subscribers. The system includes a means for receiving incoming communications from a plurality of requesters desiring to access the information corresponding to subscribers and a database directory listing storing information corresponding to each one of the subscribers. The information includes a pre-announcement field containing information indicating whether a requester is pre-announced before a connection to a subscriber is made. | 2008-12-18 |
20080310607 | Presence Based DTMF Signaling Enablement of Voice Communication Controller and Method - A voice communication controller (e.g., private branch exchange (PBX)) is described herein which can automatically enable an outbound dual tone multi-frequency (DTMF) feature for one of it's extensions that is attached to a phone which belongs to a user while that user is or is likely to be participating in a session with an external DTMF communication system (e.g., a conference/collaboration bridge, an interactive voice response (IVR) system, or a voice mail system). This is desirable because if the user presses button(s) on their phone then the voice communication controller which has enabled the outbound DTMF feature will not attempt to process the corresponding DTMF digit(s) but instead will automatically transfer the corresponding DTMF signal(s) to the external DTMF communication system. | 2008-12-18 |
20080310608 | CREDIT BASED MANAGEMENT OF TELECOMMUNICATION ACTIVITY - An apparatus for allowing a telecommunication service provider to manage the risk that a subscriber will not pay their bill for use of the provider's telecommunication system comprising interface means, operating within a digital computer, for communicating information relating to a particular subscriber, said interface means includes a first portion for communicating information relating to said particular subscriber with a payment records database and a second portion for receiving a call information record for each call involving said particular subscriber, said call information record derived from information compiled by a switching center that is capable of establishing connections between a plurality of pairs of telecommunication devices and simultaneously maintaining such connections; credit means, operating within said digital computer, for using said first portion of said interface to obtain a billing and payment history for said particular subscriber, for using said billing and payment history to establish a credit limit for said particular subscriber; analysis means, operating within said digital computer, for receiving each of said call information record for said particular subscriber from said second portion of said interface means and using said call information record to compare call usage of said particular subscriber call to said credit limit for said particular subscriber; and output means, operating within said digital computer, for outputting an indication to the telecommunication service provider that said particular subscriber has exceeded said credit limit for said particular subscriber. | 2008-12-18 |
20080310609 | Distributed cabin interphone system for a vehicle - In one aspect, cabin interphone handsets and passenger announcement speakers in the cabin of a vehicle communicate over an internet protocol data network. Each handset of the system has an internet protocol presence and each passenger announcement speaker of the system has an internet protocol presence. Each handset includes announcement and call management functions so that each handset can communicate with one or more handsets over the network as well as make passenger announcements via one or more passenger announcement speakers. The call setup function and PA function may utilize voice over internet protocol. In another aspect, methods are provided for making interphone calls and passenger announcements using the system. | 2008-12-18 |
20080310610 | Method of remotely changing operating characteristics of a communications device - The present invention relates to a method of remotely changing operating characteristics of a communications device selected for signalling an incoming message or call to a user. To allow signalling an urgent incoming message or call to a user even if the device to be called is in a mute state, the method comprises the steps of: transmitting control data from a calling device (MSI) to a device (MS | 2008-12-18 |
20080310611 | Control System of Communication Network - A smooth and seamless terminal switching guaranteeing continuity of communication at an application level is realized. | 2008-12-18 |
20080310612 | System, method and device supporting delivery of device-specific data objects - A technique for supporting delivery of a data object used to alert a called party to a call from a calling party is described. The technique comprises receiving a call setup request from a calling communication device associated with the calling party. Next, a call setup is initiated with one or more called communication devices associated with the called party. In response to the call setup, a request for the data object for each of the one or more called communication devices is received. Finally, the data object is transferred to each of one or more called communication devices, wherein the data object is used by the one or more called communication devices to alert the called party to the call from the calling party. | 2008-12-18 |
20080310613 | ADVANCED INTELLIGENT SINGLE TELEPHONE NUMBER ROUTING - Communications are routed in a communications network based on a location of a requesting party. A communication from the requesting party is received. A location of the requesting party is determined using a geographic address which defines the smallest of two of a set of multiple geographic areas defined by multiple available geographic addresses for the location of the requesting party. A communications destination address for the communication is selected, from multiple possible communications destination addresses, based on the location of the requesting party. The communication is forwarded to the selected communications destination address. | 2008-12-18 |
20080310614 | Methods, Systems, and Products for Billing Calls - Methods, systems, and products are disclosed for routing a communication. An identifier of an origination point of the communication is received. A destination point associated with a destination of the communication is determined. The origination point and the destination point are analyzed to determine whether the communication may be entirely routed within a local service provider's geographic area. | 2008-12-18 |
20080310615 | Voice Caller ID - An apparatus and method for audibly annunciating at a device information transmitted over a telephone network. The information is transmitted in the form of a modulated signal to the device wherein the modulated signal is representative of the information. The apparatus includes a receiver for capturing a ring signal and a modulated signal representative of information transmitted over a telephone network during an interval between the ring signal and a subsequent ring signal; a converter in communication with the receiver for converting the modulated signal into a stream of audible signals; and a speaker in communication with the converter for producing audible sounds corresponding to the stream of audible signals representative of the information received over the telephone network. | 2008-12-18 |
20080310616 | METHOD AND SYSTEM FOR SUBSCRIBER LINE INTERFACE CIRCUIT - A subscriber line interface circuit apparatus includes a linefeed circuit and a subscriber line control circuit (SLCC). In an embodiment, the linefeed circuit includes a signal conversion circuit which provides a differential mode signal and a common mode signal in response to at least a tip signal and a ring signal from the subscriber loop. The linefeed circuit includes a tip control circuit and a ring control circuit. In an embodiment, the SLCC is provided in a single integrated circuit chip and is coupled to the linefeed circuit which isolates the SLCC from the tip or ring signals. The SLCC includes a first and a second differential mode inputs for receiving the differential mode signal, and a common-mode input for receiving the common-mode signal. In an embodiment, the SLCC also provides various tip control signals and ring control signals to the tip control circuit and the ring control circuit, respectively. | 2008-12-18 |
20080310617 | Transmission Links - A device is provided for measuring properties of transmission links by an adaptive filter. The device comprises a first output terminal adapted to provide a first signal to the transmission link. Further, the device includes a first input terminal for receiving an echo signal of the first signal. An adaptive filter forms a part of the device and is coupled to the first input terminal. The device includes a second output terminal for providing information identifying filter coefficient of the adaptive filter. | 2008-12-18 |
20080310618 | TELEPHONE HANDSET FOR A BROADBAND TELECOMMUNICATION SYSTEM - A telephone handset for a broadband telecommunication system, whose housing is composed of an upper shell and a lower shell forming a joining edge, shall guarantee a reliable coupling of the resonance volume to the free field with a particularly low sound leakage. For this purpose, the joining edge is provided according to the invention with a number of coupling slots. | 2008-12-18 |
20080310619 | Process of Encryption and Operational Control of Tagged Data Elements - A process of encrypting an object having an associated object tag includes generating a cryptographic key by binding an organization split, a maintenance split, a random split, and at least one label split ( | 2008-12-18 |
20080310620 | METHOD, APPARATUS AND SYSTEM FOR MANAGING A/V PROFILES - A method, apparatus and system for managing A/V (Audio/Video) profiles are provided, which is related to a technology that supports different profiles in a domain. The method of managing A/V profiles includes requesting a license component and an encrypted content component, and creating a DRM license and encrypted content by gathering elements that correspond to an A/V profile of a specified device from the license component and the encrypted content component. | 2008-12-18 |
20080310621 | PRIVACY ENHANCED COMPARISON OF DATA SHEETS - A computer implemented method for performing a privacy enhanced comparison of a plurality of data sets includes allocating a private encryption key to each of the data sets; performing an encryption operation for each of the data sets, the encryption operation comprising generating a commutatively encrypted data set of the respective data set, wherein the commutatively encrypted data sets are generated by successively applying a keyed commutative encryption function on the respective data set with the private encryption key of the respective data set itself and with the private encryption keys of the other data sets; and comparing the commutatively encrypted data sets. | 2008-12-18 |
20080310622 | E-FUSES FOR STORING SECURITY VERSION DATA - Methods and devices that may be utilized in systems to dynamically update a security version parameter used to encrypt secure data are provided. The version may be maintained in persistent storage located on a device implementing the encryption, such as a system on a chip (SOC). The persistent storage does not require battery backing and, thus, the cost and complexity associated with conventional systems utilizing battery backed storage may be reduced. | 2008-12-18 |
20080310623 | SECURING DIGITAL CONTENT SYSTEM AND METHOD - A system and method of encrypting digital content in a digital container and securely locking the encrypted content to a particular user and/or computer or other computing device is provided. The system uses a token-based authentication and authorization procedure and involves the use of an authentication/authorization server. This system provides a high level of encryption security equivalent to that provided by public key/asymmetric cryptography without the complexity and expense of the associated PKI infrastructure. The system enjoys the simplicity and ease of use of single key/symmetric cryptography without the risk inherent in passing unsecured hidden keys. The secured digital container when locked to a user or user's device may not open or permit access to the contents if the digital container is transferred to another user's device. The digital container provides a secure technique of distributing electronic content such as videos, text, data, photos, financial data, sales solicitations, or the like. | 2008-12-18 |
20080310624 | Encryption Apparatus and Method for Providing an Encrypted File System - An encryption apparatus and method for providing an encrypted file system are provided. The encryption apparatus and method of the illustrative embodiments uses a combination of encryption methodologies so as to reduce the amount of decryption and re-encryption that is necessary to a file in the Encrypted File System in the event that the file needs to be modified. The encryption methodologies are interleaved, or alternated, with regard to each block of plaintext. In one illustrative embodiment, Plaintext Block Chaining (PBC) and Cipher Block Chaining (CBC) encryption methodologies are alternated for encrypting a sequence of blocks of data. The encryption of a block of plaintext is dependent upon the plaintext or a cipher generated for the plaintext of a previous block of data in the sequence of blocks of data so that the encryption is more secure than known Electronic Code Book encryption methodologies. | 2008-12-18 |
20080310625 | DIGITAL SIGNATURE ON A SMARTCARD - A digital signature scheme for a “smart” card utilizes a set of prestored signing elements and combines pairs of the elements to produce a new session pair. The combination of the elements is performed partly on the card and partly on the associated transaction device so that the exchange of information between card and device does not disclose the identity of the signing elements. The signing elements are selected in a deterministic but unpredictable manner so that each pair of elements is used once. Further signing pairs are generated by implementing the signing over an anomalous elliptic curve encryption scheme and applying a Frobenius Operator to the normal basis representation of one of the elements. | 2008-12-18 |
20080310626 | ENCRYPTED COMMUNICATION SYSTEM, ENCRYPTED COMMUNICATION METHOD, ENCRYPTING DEVICE, AND DECRYPTING DEVICE - To allow viewers to view a plain document depending on levels of the authorized powers of the viewers without inserting identifiers into the plain document. An encrypting device includes devices for: storing encrypting role information which includes encrypting keys and key IDs of the encrypting keys; grasping the encrypting range of the plain document, and creating an encrypted part by encrypting the encrypting range using the encrypting key in the encrypting role information; creating the encrypting information configured with one, two, or more record(s) containing the front position and rear position of the encrypted part, the key ID corresponding to the encrypting key that is applied for the encrypted part, and the processing order of the encrypted part; creating the encrypted document by combining an encrypted document main body configured with a document containing the encrypted part with the encrypting information; and storing the encrypted document to a prescribed medium. | 2008-12-18 |
20080310627 | ASYNCHRONOUS DOWNLOAD - The claimed subject matter provides a system and/or method that asynchronously disseminates multimedia content to disparate clients. The disclosed system can include a component that receives multimedia content supplied by a multimedia publisher, encrypts or applies a time sensitive lock to the received multimedia content, disseminates the encrypted or locked multimedia content to the disparate clients, and a time subsequent, generates and distributes to the disparate clients a counterpart to the time sensitive lock necessary to unlock and play the disseminated and encrypted or locked multimedia content on the clients. | 2008-12-18 |
20080310628 | Backup Management Device, Backup Management Method, Computer Program, Recording Medium, Integrated Circuit, and Backup System - To provide a backup management device that deletes a content so as to be restorable in the future while protecting a copyright of the content, in a case where there exists a backup of the content. In an HD recorder | 2008-12-18 |
20080310629 | Multibit Forensic Watermark with Encrypted Detection Key - The invention relates to embedding auxiliary data in the form of a multibit payload in a host signal, and encrypting the associated detection key. Moreover, the invention relates to extracting the auxiliary data in the form of the multibit payload from a data signal. Auxiliary data is embedded in a host signal by the following steps. First a reference watermark is provided, subsequently an encrypted detection key associated only with the reference watermark is generated. The encrypted detection key may be a scrambled version of the watermark. In a further step, the multibit watermark is generated and a multibit payload is encoded into the reference watermark. Finally, the multibit watermark is embedded into the host signal. | 2008-12-18 |
20080310630 | Selective encryption to enable trick play with enhanced security - Certain embodiments consistent with the present invention involve a method of selectively encrypting digital video content that involves receiving a plurality of packets containing the digital video content; identifying packets containing start of frame (SOF) headers; inserting padding into the packets containing SOF headers to move the content of the packets containing the SOF headers to a previous or subsequent packet and create padded packets containing the SOF headers; selecting certain of the packets for encryption according to a selection criterion, wherein the selected packets exclude the padded packets containing SOF headers; encrypting the selected packets; and retaining the padded packets containing the SOF headers unencrypted to form selectively encrypted digital video content. Corresponding decoding method as well as encoding and decoding apparatus are also taught. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 2008-12-18 |
20080310631 | ENCRYPTION OUTPUT DATA GENERATION METHOD AND SYSTEM - A hashing method and system. The method comprises receiving by a computing system first source data. A first hash function is applied to first source data. A first hash output is generated by the first hash function as a result of applying the first hash function to first source data. The computing system performs an operation relating the first source data with at least a portion of the first hash output to generate second source data. The first hash function is applied to the second source data. A second hash output is generated as a result of applying the first hash function to the second source data. | 2008-12-18 |
20080310632 | COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION SCHEME - A communication system includes a transmission device that transmits an information signal having information defined as a binary state value, the transmission device including a signal generation unit that generates an information decryption signal to transmit the information decryption signal together with the information signal, wherein the state value of the information decryption signal is unchanged when the state value of the information signal is changed, whereas the state value of the information decryption signal is changed when the state value of the information signal is unchanged; and a reception device that receives the information signal and the information decryption signal, the reception device including an information acquisition unit that acquires the state value of the information signal based on a changing timing of the state value of each of the information signal and the information decryption signal received. | 2008-12-18 |
20080310633 | METHOD AND DEVICES FOR PROVIDING SECURE DATA BACKUP FROM A MOBILE COMMUNICATION DEVICE TO AN EXTERNAL COMPUTING DEVICE - A method and devices for providing secure data backup from a mobile communication device to an external computing device is described. In accordance with one example embodiment, there is provided a method of backing up data from a mobile communication device to an external computing device, the mobile communication device being connected to the external computing device for exchanging data with each other, the method comprising: receiving a request to backup one or more data items in a plurality of data items stored on the mobile communication device; encrypting a data item using an encryption key stored in memory of the mobile communication device; transferring the encrypted data item to the external computing device; and storing a backup file comprising the encrypted data item in the memory of the external computing device. A method of restoring backup data to a mobile communication device from an external computing device is also provided, as are mobile communication devices and computing devices configured for implementing the backup and restore operations. | 2008-12-18 |
20080310634 | GENERATION OF DEVICE DEPENDENT RSA KEY - A portable electronic device for exchanging encrypted data with other electronic devices includes a processor, a memory operatively coupled to the processor, and a prime number generation circuit operatively coupled to the processor and memory. The prime number generation circuit includes logic that generates at least two prime numbers based on unique data stored in the electronic device, wherein said at least two prime numbers are always the same at least two prime numbers. The generated prime numbers then can be used to generate RSA public and private keys within the electronic device. | 2008-12-18 |
20080310635 | APPARATUS, SYSTEM, AND METHOD FOR MANAGING LICENSE KEYS - An apparatus, system, and method are disclosed for managing license keys. A license key service module creates a license key service object of a license key service class. The license key service class extends a SMI-S CIM CIM_Service class. The license key service object comprises a plurality of management operations. A hosted license key service module creates a hosted license key service object of a hosted license key service class. A license key module creates a license key object of a license key class. The license key class extends a SMI-S CIM CIM_ManagedElement class. The license key object comprises a license key and employs the plurality of management operations. A management module manages the license key using the license key object, license key service object, and hosted license key service object. | 2008-12-18 |
20080310636 | ACCESS-CONTROLLED ENCRYPTED RECORDING SYSTEM FOR SITE, INTERACTION AND PROCESS MONITORING - A high level of security for access to recorded information is provided by provision of a trusted/protected communication linkage such as a tamper-resistant or tamper evident enclosure, a physical close coupling between information source and encryption processor and/or obfuscated code or end-to-end network encryption and encryption, possibly symmetrical, of the information to be recorded by a preferably random session key or segment key. The session key or segment key may then be encrypted, preferably asymmetrically, by a secure key which may be shared or access thereto shared in accordance with any desired security policy. Use of a public key or public key/private key infrastructure also provides for authentication of the recorded information. | 2008-12-18 |
20080310637 | Method, System And Rights Issuer For Generating And Acquiring Rights Objects - A method and system for generating and acquiring rights objects according to the embodiments. In the present disclosure, the generation and acquisition of rights objects is implemented as a service function or a service support function; a rights issuer is deployed as an application server or as a service support entity for an application server. Therefore, the present disclosure makes full use of all existing entities and operating mechanisms in an IMS network and provides an optimized method and system for generating and acquiring rights objects. Furthermore, the rights issuer may obtain user requests or online state information of users via the IMS. In addition, the present disclosure provides a rights issuer. | 2008-12-18 |
20080310638 | Storage Medium Processing Method, Storage Medium Processing Device, and Program - A situation where accesses concentrate on a release day is eased. A user terminal | 2008-12-18 |
20080310639 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication apparatus stores, in a memory, secret data shared with a first terminal, transmits a first connection request message to the first terminal, receives (a) a transfer instruction message which is transmitted from the first terminal in response to the first connection request message, includes address information of a second terminal, and instructs transfer of a connection request to the second terminal, and (b) an encrypted message which is encrypted by using a public key of the second terminal or a shared key shared between the first terminal and the second terminal, transmits the encrypted message together with a second connection request message whose destination is the address information, receives a response message to the second connection request message and a decryption result of the encrypted message, and starts, when the decryption result equals the secret data, a communication with the second terminal. | 2008-12-18 |
20080310640 | Method and Apparatus for Processing a Media Signal - An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of generating rendering information by using spatial information indicating features between multi-sources and filter information having a surround effect; and generating a surround signal by applying the rendering information to a downmix signal generated by downmixing the multi-sources, wherein a tab number of a filter used in applying the rendering information to generate the surround signal is variable. | 2008-12-18 |
20080310641 | METHOD FOR CHECKING AUDIO INTERFACE IN AV SYSTEM AND APPARATUS USING THE SAME - A method for checking availability of audio interface between a display apparatus and an AV apparatus in an AV system, and an AV apparatus using the same are provided. The checking includes transmitting a command to check an audio interface to a second AV apparatus where an audio from a first AV apparatus is output, and receiving a result of checking the audio interface in response to the command from the second AV apparatus. Therefore, a user can recognize whether or not an audio interface has a problem in an AV system. | 2008-12-18 |
20080310642 | ACTIVE SOUND CONTROL APPARATUS - An active sound control apparatus includes a delay circuit for delaying the output of a frequency component of a sound effect by delaying an engine rotation frequency signal representative of an engine rotation frequency [Hz], a delay circuit for delaying the output of an amplitude component of the sound effect by delaying an engine rotation frequency change signal representative of an engine rotation frequency change [Hz/second], and delay circuits for delaying the output of all components of the sound effect by delaying a control signal for controlling the outputs of speakers. | 2008-12-18 |
20080310643 | METHOD AND SYSTEM FOR CLEAR SIGNAL CAPTURE - A method and system for clear signal capture comprehend several individual aspects that address specific problems in improved ways. In addition, the method and system also comprehend a hands-free implementation that is a practical solution to a very complex problem. Individual aspects comprehended related to echo and noise reduction, and divergence control. | 2008-12-18 |
20080310644 | METHOD AND SYSTEM FOR CLEAR SIGNAL CAPTURE - A method and system for clear signal capture comprehend several individual aspects that address specific problems in improved ways. In addition, the method and system also comprehend a hands-free implementation that is a practical solution to a very complex problem. Individual aspects comprehended related to echo and noise reduction, and divergence control. | 2008-12-18 |
20080310645 | NOISE CANCELING SYSTEM AND NOISE CANCELING METHOD - Disclosed herein is a noise canceling system, including: a first sound collection section configured to collect noise and output a first noise signal; a first signal processing section configured to produce a first noise reduction signal for reducing the noise at a predetermined cancel point; a sound emission section configured to emit noise reduction sound based on the first noise reduction signal; a second sound collection section configured to collect noise and output a second noise signal; and a second signal processing section configured to produce a second noise reduction signal for reducing noise at the cancel point. In the noise canceling system, the sound emission section emitting the noise reduction sound based on the first and second noise reduction signals | 2008-12-18 |
20080310646 | AUDIO SIGNAL PROCESSING METHOD AND APPARATUS FOR THE SAME - An audio signal processing method for processing input audio signals of plural channels includes calculating at least one feature quantity representing a difference between channels of input audio signals, selecting at least one weighting factor according to the feature quantity from at least one weighting factor dictionary prepared by learning beforehand, and subjecting the input audio signals of plural channels to signal processing including noise suppression and weighting addition using the selected weighting factor to generate output an output audio signal. | 2008-12-18 |
20080310647 | AUDIO STREAM PROCESSING METHOD, PLAYBACK APPARATUS, AND OUTPUT APPARATUS - According to one embodiment, the invention is made to generate time information, when no time information is appended to a header of a data unit obtained by packing a plurality of audio streams upon transferring that data unit. To this end, data obtained by packing a plurality of audio streams together with playback time information (PTS) is transferred as data of one unit. When no PTS is appended to the header (header HDR of UNITb) of the data of one unit, new time information is calculated from time information immediately before the HDR of UNITb. | 2008-12-18 |
20080310648 | Current sensing system and method - There is provided a current sense circuit ( | 2008-12-18 |
20080310649 | Sound collector and sound recorder - A sound collector includes a first microphone unit and a second microphone unit having a single directivity and being pivotally supported in a manner that directions of directional axes of the units are changeable in an identical flat plane and a switch to be controlled in conjunction with the rotations of the first and the second microphone units. Output signals of the first and the second microphone units are outputted with channels of the signals being exchanged or non-exchanged by the switch in accordance with an angle formed by the directional axes. | 2008-12-18 |
20080310650 | ACTIVE NOISE REDUCING DEVICE - An active noise reducing device includes processing circuit includes a sine wave generator for generating a sine wave having a specific frequency, a cosine wave generator for generating a cosine wave having the same frequency as that of the sine wave, and two one-tap digital filters for processing the outputs from the generators. The processing circuit also has two coefficient updating sections, which output a sum of outputs from the digital filters. Updating sections update respective coefficients of the filters based on a sum of this output from the updating sections and respective inputs to the updating sections, and the respective outputs from the generators. The noise reducing device also has an adjusting circuit for adjusting the phase and amplitude of an output from the processing circuit, the adjusting circuit thus generates a control signal of opposite phase and equal in amplitude to original noise, so that random noise such as load noise can be reduced. | 2008-12-18 |
20080310651 | CIRCUIT AND METHOD FOR ELIMINATING SPEAKER CRACKLE DURING TURNING ON OR OFF POWER AMPLIFIER - The present invention discloses a circuit for eliminating speaker crackle during turning on or off a power amplifier and a method for the same, particularly to a circuit and method, wherein an input capacitor is used to pre-charge an output capacitor to reduce speaker crackle to an inaudible level during turning on or off a power amplifier. The present invention has a low cost and a simplified design without the penalty of bandwidth. | 2008-12-18 |
20080310652 | Device and Method for Audio Signal Gain Control - Audio compressor device ( | 2008-12-18 |
20080310653 | Digital audio signal amplifier - A digital audio signal amplifier includes: a digital signal amplifying module having a digital audio signal plug connected with a digital audio signal outlet of a main board to receive digital audio signals, the digital signal amplifying module processing the digital audio signals to generate high power analog audio signals; and an analog signal output interface coupled to the digital signal amplifying module and transferring the high power analog audio signals to a set of speaker. | 2008-12-18 |