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| 20080317259 | METHOD AND APPARATUS FOR NOISE SUPPRESSION IN A SMALL ARRAY MICROPHONE SYSTEM - A small array microphone system includes an array microphone having a plurality of microphones and operative to provide a plurality of received signals, each microphone providing one received signal. A first voice activity detector (VAD) provides a first voice detection signal generated using the plurality of received signals to indicate the presence or absence of in-beam desired speech. A second VAD provides a second voice detection signal generated using the plurality of received signals to indicate the presence or absence of out-of-beam noise when in-beam desired speech is absent. A reference signal generator provides a reference signal based on the first voice detection signal, the plurality of received signals, and a beamformed signal, wherein the reference signal has the desired speech suppressed. A beamformer provides the beamformed signal based on the second voice detection signal, the reference signal, and the plurality of received signals, wherein the beamformed signal has noise suppressed. A multi-channel noise suppressor operative to further suppress noise in the beamformed signal and provide an output signal. A speech reliability detector provides a reliability detection signal indicating the reliability of each frequency subband. The first voice detection signal, the second voice detection signal, the reliability detection signal and the output signal are provided to the speech recognition engine. | 12-25-2008 |
| 20100179806 | METHOD FOR PHASE MISMATCH CALIBRATION FOR AN ARRAY MICROPHONE AND PHASE CALIBRATION MODULE FOR THE SAME - The invention provides a phase calibration module, calibrating phase mismatch between microphone signals output by a plurality of microphones of an array microphone. In one embodiment, the phase calibration module comprises a subband filter, a delay calculation module, and a delay compensation filter. The subband filter extracts a high frequency component and a low frequency component from each of the microphone signals to obtain a plurality of high-frequency component signals and a plurality of low-frequency component signals. The delay calculation module calculates delays between the low-frequency component signals. The delay compensation filter then compensates the low-frequency component signals for phase mismatches therebetween according to the calculated delays to obtain a plurality of calibrated low-frequency component signals. | 07-15-2010 |
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| 20110163840 | HIGH RELIABILITY BLADE FUSE AND THE MANUFACTURING METHOD THEREOF - The invention relates to the field of fuses, and particularly to a blade fuse used to protect electronic components and its manufacturing method. The said blade fuse comprises a ceramic substrate, a first metal layer, a second metal layer, an encapsulating layer, back electrodes and metal ends, wherein an insulating layer is between the first metal layer and the second metal layer, and the softening point of the insulating layer is between the melting points of the first and second metal layers; the method of manufacturing the said blade fuse includes the following steps: forming back electrodes on the back side of the substrate and then forming the first metal layer on the substrate in accordance with the pattern of the fuse wire; securing a metal mesh on the substrate, covering the two ends of the first metal layer, and forming the insulating layer with vapor deposition; removing the metal mesh, printing the second metal layer on the insulating layer with screen-printing technology and then covering all the surface of the substrate with the protective layer except its two ends wherein end electrodes are located so that the fuse wire is protected; the finished product is obtained after formation of end inner electrodes and end electrodes at last; the manufacturing processes disclosed in this invention is simple, and the blade fuse manufactured thereby is characteristic of excellent fusing performance, strong anti-aging capability and the smoother fusing curve. | 07-07-2011 |
| 20110210814 | MULTI-LAYER BLADE FUSE AND THE MANUFACTURING METHOD THEREOF - The invention relates to the field of fuses, and particularly a multi-layer blade fuse and its manufacturing method. The said multi-layer blade fuse comprises a ceramic substrate, back electrodes, front electrodes, fuse wire, protective layers and metal ends, wherein the fuse wire is prepared in multiple layers and the adjacent layers of fuse wire are connected in a head-to-tail style; the two lead-outs of the fuse wire as a whole are respectively connected to the two front electrodes located at the two ends of the substrate, and each layer of the fuse wire is deposited with a protective layer. During manufacturing, all protective layers but the upmost one leave the tail of each layer of fuse wire uncovered so that the head-to-tail series connection is possible. Compared with the prior methods, the method disclosed herein is characteristic of simpler manufacturing processes, less investment on equipments and much shorter manufacturing duration, which consequently reduce the cost. | 09-01-2011 |
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| 20100179967 | MAP-Queue-Based Data Transfer Method - As for the data transfer method based on MAP, adopts a MAP data structure during the data transferring process and configures it using SOID (Standard of Interface Department) syntax after encapsulation; the definition of MAP data structure; one system consists of many matching and individual source ends and target ends, one source end just accesses to its matching target end, and vice versa, all member methods of source and target end adopt MAP structure to transfer data, logic implementation steps are shown as below: data processing of database is the most basic and most featured part of BRS system which adopts SOID syntax, if a table is not simply imported into another Oracle database, it should be treated by another process, that is, generate a derived class directly, and then rewrite “Key process”; data transfer method based on MAP bring excellent compatibility. It nearly supports all kinds of existing platforms, protocols, businesses and manufacturers. | 07-15-2010 |
| 20110086649 | Methodology for Traffic Control Based on Cross-Carriers Short Message (SMS) Application - Method of traffic control for cross-carrier SMS application, the major feature is to set different RAM realization strategies and achieve traffic control over the operational process of SMS by setting different limits for different carriers including the overall limit, total traffic limit and individual user's traffic limit; 1) Different carriers adopt different overall limits: traffic limit is set for different carriers in RAM, based on differences of the receiving number's properties. 2) Overall Traffic Limit: It is achieved by setting a simple overall traffic limit. When the time limit is reached for sending the message, all sending modules will temporarily suspend the sending procedure for a certain time until the defined time. 3) The strategy of using RAM to restrict individual user's network traffic: RAM can be achieved through HASH MAP. 4) The implementation of RAM strategy: using RAM in accordance with different traffic control requirements. 5) In order to achieve “time-out processing”, the system also add the “time-out sub thread”. Through this thread, the message will be transferred to the “time-out processing module” automatically in the case of timeout. | 04-14-2011 |
| 20110137983 | Realization to the Great Volume of Data Based Dynamic Policy - The innovation provided an approach to the great volume of data based dynamic policy model, which consists of the steps as the following: 1) User registration in the Differentiation Access & Application Control System (DACS); 2) After user log in Radius system, the user profile is delivered to DACS system where user profile can be recorded; 3) After logging in DACS system, user has option to subscribe the policy for the bandwidth, and the DACS system record the subscribed policy information; 4) User requests to use the subscribed policy via the interface provided by DACS system; 5) After receiving policy requests from user, the DACS system creates a thread which dispatches the policy ordered by subscriber. After finishing above, the result will be returned to subscriber. The innovation supports dynamic policy dispatch in real-time manner for the large number of subscribers, specified bandwidth and QoS according to the service, thus the change from bandwidth control to the dynamic policy model for the service control is realized. | 06-09-2011 |
| 20110238851 | Soap Client Protocol Encapsulation Based on TCP - SOAP client protocol encapsulation Based on TCP , based on the short TCP connection, SOAP client protocol encapsulation method, the client package for SOAP protocol, that is Web Services Description Language WSDL file into xml file, put to the client application's configuration file which, variable part of the SOAP protocol allows all the code from the configuration file object after conversion, and then generated after the body of SOAP protocol: 1) client load WSDL converted xml file; 2) the client application to read out the configuration file, the xml with the application to transfer data into a SOAP message body; 3) in the generated SOAP message body together with SOAP message header, turned into a complete SOAP request; 4) We will be based on TCP short connection to the complete SOAP request sent to the web services server, then receive and process about the content of web services to return, to complete a full SOAP interface calls; All the web Services client: a client using the same source, and adopt a unified approach to a request to the web service server. | 09-29-2011 |
| 20110289418 | Method for Accessing Control That Based on Virtual Computing - Construction of virtual environment, isolate the end user to interact directly with the core data sources, deploy the network listener engine in a virtual environment, using listening and interception technology, a variety of fine-grained authorization aggregates attribute information data to achieve the control of the end user to access core data sources. The present invention implements centralized control of remote maintenance authority, to Encapsulated client application packaged in a virtualized environment, control user access to core data sources, cut off end-users access to core data sources directly. Unify the interface of the maintenance path by virtual environment, standardized login path of maintenance personnel and maintenance tools. | 11-24-2011 |
