| Patent application number | Description | Published |
| 20120139054 | Device Having Adjustable Channel Stress and Method Thereof - The present invention relates to a device having adjustable channel stress and method thereof. There is provided an MOS device ( | 06-07-2012 |
| 20120164808 | METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - A method for manufacturing a semiconductor device includes the steps of: forming a first gate stack on a semiconductor substrate, the first gate stack includes a first gate conductor and a first gate dielectric between the first gate conductor and the semiconductor substrate; forming source/drain regions on the semiconductor substrate; forming a multilayer structure including at least one sacrificial layer and at least one insulating layer under the sacrificial layer on the semiconductor substrate and the first gate stack; performing a first RIE on the multilayer structure; performing a second RIE on the multilayer structure; selectively etching the first gate stack with respect to the insulating layer, in which the first gate conductor is removed and an opening is formed in the insulating layer; and forming a second gate conductor in the opening. | 06-28-2012 |
| 20120164838 | METHOD FOR PLANARIZING INTERLAYER DIELECTRIC LAYER - The present application discloses provides a method for planarizing an interlayer dielectric layer, comprising the steps of: providing a multilayer structure including at least one sacrificial layer and at least one insulating layer under the sacrificial layer on the semiconductor substrate and the first gate stack, performing a first RIE on the multilayer structure, in which a reaction chamber pressure is controlled in such a manner that an etching rate of the portion of the at least one sacrificial layer at a center of a wafer is higher than that at an edge of the wafer, so as to obtain a concave etching profile; performing a second RIE on the multilayer structure to completely remove the sacrificial layer and a part of the insulating layer, so as to obtain the insulating layer having a planar surface which serves as an interlayer dielectric layer. The planarization process can replace a CMP process for providing an interlayer dielectric layer having a planar surface, which achieves a relative larger available area of the wafer. | 06-28-2012 |
| 20120181634 | Method of Introducing Strain Into Channel and Device Manufactured by Using the Method - The present invention relates to a method of introducing strain into a channel and a device manufactured by using the method, the method comprising: providing a semiconductor substrate; forming a channel in the semiconductor substrate; forming a first gate dielectric layer on the channel; forming a polysilicon gate layer on the first gate dielectric layer; doping or implanting a first element into the polysilicon gate layer; removing a part of the first gate dielectric layer and polysilicon gate layer to thereby form a first gate structure; forming a source/drain extension region in the channel; forming spacers on both sides of the first gate structure; forming a source/drain in the channel; and performing annealing such that lattice change occurs in the polysilicon that is doped or implanted with the first element in the high-temperature crystallization process, thereby producing a first strain in the polysilicon gate layer, and introducing the first strain through the gate dielectric layer to the channel. This method has greater process flexibility and simple process complexity with no additional process cost. | 07-19-2012 |
| 20120261763 | Semiconductor Structure and Method for Manufacturing the Same - The present invention relates to a semiconductor and a method for manufacturing the same. The semiconductor structure comprises an NMOS device comprising a first gate structure and a PMOS device comprising a second gate structure; a first stress liner, at least formed on both sides of the first gate structure of said NMOS device; a second stress liner, at least formed on both sides of the second gate structure of said PMOS device; wherein said first stress liner is a spin-on glass (SOG) film with tensile stress, said second stress liner is formed of a material that can introduce compressive stress into the channel of the PMOS device. The present invention can reduce the difficulty of the process of manufacturing dual stress liner using the same material, e.g. nitride, and can reduce influence of nitride having a high dielectric constant upon the device interconnect delay while still maintaining the tensile strain advantage. | 10-18-2012 |
| 20130026496 | Semiconductor Device and Manufacturing Method Thereof - A method for manufacturing a semiconductor device, comprising forming a tunneling dielectric layer, a storage dielectric layer, a gate dielectric layer and a gate layer sequentially on a semiconductor substrate of a first semiconductor material; patterning the tunneling dielectric layer, the storage dielectric layer, the gate dielectric layer and the gate layer to form a gate stack; forming a groove in the semiconductor substrate on the sides of the gate stack; filling the groove with a second semiconductor material different from the first semiconductor material, meanwhile, the entire device is covered by the dielectric layer. The surface energy level in the channel is made to change by the stress generated by the second semiconductor material and the covering dielectric layer, thereby increasing tunneling current and improving the storage efficiency of the device. | 01-31-2013 |
| 20130040465 | Etch-Back Method for Planarization at the Position-Near-Interface of an Interlayer Dielectric - The invention discloses an etch-back method for planarization at the position-near-interface of an interlayer dielectric (ILD), comprising: depositing or growing a thick layer of SiO | 02-14-2013 |
| 20130082362 | Semiconductor Device and Manufacturing Method thereof - A semiconductor device and its manufacturing method, wherein the NMOS device is covered by a layer of silicon nitride film having a high ultraviolet light absorption coefficient through PECVD, said silicon nitride film can well absorb ultraviolet light when being subject to the stimulated laser surface anneal so as to achieve a good dehydrogenization effect, and after dehydrogenization, the silicon nitride film will have a high tensile stress; since the silicon nitride film has a high ultraviolet light absorption coefficient, there is no need to heat the substrate, thus avoiding the adverse influences to the device caused by heating the substrate to dehydrogenize, and maintaining the heat budget brought about by the PECVD process. | 04-04-2013 |
| 20130093041 | Semiconductor Device and Method for Manufacturing the Same - The invention relates to a semiconductor device and a method for manufacturing such a semiconductor device. A semiconductor device according to an embodiment of the invention may comprise: a substrate; a device region located on the substrate; and at least one stress introduction region separated from the device region by an isolation structure, with stress introduced into at least a portion of the at least one stress introduction region, wherein the stress introduced into the at least a portion of the at least one stress introduction region is produced by utilizing laser to illuminate an amorphized portion comprised in the at least one stress introduction region to recrystallize the amorphized portion. The semiconductor device according to an embodiment of the invention produces stress in a simpler manner and thereby improves the performance of the device. | 04-18-2013 |
| Patent application number | Description | Published |
| 20090187447 | CHECKING THE CORRECTNESS OF GIS DATA - A method and apparatus for checking the correctness of GIS data. The method includes the steps of: receiving GIS data; receiving business data of each branch; determining the geographic area to which each branch belongs, wherein the GIS data in the geographic area will be checked; and, checking whether the GIS data of the geographic area to which each branch belongs are correct based on the business data of each branch. The method and apparatus can automatically check geographic and demographic data of a given city or region. | 07-23-2009 |
| 20090187464 | METHOD AND APPARATUS FOR END-TO-END RETAIL STORE SITE OPTIMIZATION - A method and apparatus for end-to-end retail store one-stop site configuration integrates multiple data sources, identifying key customers, forecasting merchandise demand. Site configuration is formulated as a mathematical optimization problem with both in-store and external data as input to the problem whose solution provides proper suggestions for retail store transformation. | 07-23-2009 |
| 20090234782 | METHOD AND APPARATUS FOR LOCATION EVALUATION AND SITE SELECTION - Method, apparatus and system for location evaluation and site selection, capable of effectively configuring the site network and evaluating the facility location by scientifically modeling and incorporating human knowledge are provided. In one aspect, geographic and demographic data associated with a plurality of locations and human knowledge comprising partial rating knowledge and pair-wise preference knowledge are used in a regression algorithm to construct a location evaluation model. The regression algorithm is further refined using active learning that identifies a plurality of pairs of locations to improve precision of the regression algorithm. | 09-17-2009 |
| 20090281869 | METHOD AND APPARATUS FOR INTEGRATED MULTIPLE FACTORS INTO A UNIFIED OPTIMIZATION MODEL FOR RETAIL NETWORK CONFIGURATION - A method and system for integrating multiple factors into a unified optimization model for retail network configuration, in one aspect, obtains input data for modeling store configuration. The input data may include demand of each merchandise category from each customer segment in each facility, geographic distribution of stores in an area, current revenue of stores, and physical cost of reconfiguring stores. A trade area is generated as a function of store location, store format, and store capacity. The method and system also generates trade area demand summation representing predicted total demand of all stores for all merchandise categories for all customer segments in the trade area, as a function of store location, store format, store capacity, merchandise category, and customer segment associated with the trade area. An objective function is constructed as a function of said trade area demand summation, current revenue of stores, and physical cost of reconfiguring stores. | 11-12-2009 |
| 20100277497 | METHOD FOR HIGHLIGHTING TOPIC ELEMENT AND SYSTEM THEREOF - A method and system for determining highlighting colors for topic elements in a chart. The method includes acquiring contrast elements and topic elements which need to be highlighted; acquiring colors of the contrast elements and layout information of the topic elements and the contrast elements in the chart; determining a plurality of combinatorial contrast policies for the colors of the contrast elements according to a color contrast standard; calculating weights of the combinatorial contrast policies using the layout information; and determining highlighting colors of the topic elements according to the combinatorial contrast policies and their weights. A system for executing the above method is also provided. A highlighting color can be selected automatically for the information that needs attention, so that the user can determine information that should be specially noted without having professional knowledge about color, saving time and energy. | 11-04-2010 |
| 20110040601 | METHOD AND APPARATUS FOR CUSTOMER SEGMENTATION USING ADAPTIVE SPECTRAL CLUSTERING - A method and system for customer segmentation using adaptive spectral clustering may include determining initial segmentation labels, determining new customer behavior data, formulating a single objective minimization function that integrates the initial segmentation labels with the new customer behavior data, and determining best fit to both the initial segmentation labels and the new customer behavior data simultaneously by minimizing the single objective minimization function. | 02-17-2011 |
| 20110106323 | METHOD AND APPARATUS FOR PROCESSING POWER SYSTEM TOPOLOGY STRUCTURE INFORMATION - A topology structure of a power system is acquired. At least one unification set in the power system is identified based on the topology structure. Devices belonging to the same unification set have the same outage state. The at least one unification set is recorded, so as to concurrently maintain devices belonging to the same unification set. Advantageously, one or more embodiments reduce number of outages caused by power system device maintenance. | 05-05-2011 |
| 20110145237 | METHOD AND SYSTEM FOR MERCHANDISE HIERARCHY REFINEMENT BY INCORPORATION OF PRODUCT CORRELATION - System, method and computer program product for adjusting a representation of a merchandise hierarchy associated with an entity such as a retailer or wholesaler of products. Product correlation information discovered in that entity's customers' shopping records are obtained and incorporated into an existing merchandise hierarchy with a constraint on the consistency with the existing hierarchy. | 06-16-2011 |
| 20110188404 | METHOD AND APPARATUS FOR OPTIMAL SERVICE CHANNEL RECONFIGURATION BASED ON MULTI-AGENT SIMULATION - A method, and system employing the method, for service channel reconfiguration at a service outlet includes generating service transaction data of a service outlet, generating queue management system (QMS) data of the service outlet, and generating cost and profit data for the service outlet. Data is extracted from the service transaction data and the QMS data relating to specified parameters including customer experience data, and customer demand data. The service transaction data and the QMS data is integrated with the cost and profit data providing a unified objective function. Stochastic service processes and customer behavior data are modeled. The unified objective function is evaluated using the stochastic service processes and customer behavior data model, and the service channel function of the service outlet is reconfigured using the unified objective function. | 08-04-2011 |
| 20110196630 | Method and System for Detecting Conflicts between Outage Requests and Power Supply Guarantee Requests in a Power Grid - A method and system are provided for detecting conflicts between a power supply guarantee request (PSGR) and an outage request (OR) in a power grid. The system comprises: an accompanying outage analysis device for receiving a first outage device set including OR related devices, and using geographic information about devices in the power grid to determine a second outage device set, the second outage device set including devices in the first outage device set and accompanying outage devices that need to be in outage together with the devices in the first outage device set; an outage scale determination device for using topology information about the power grid to determine a power grid outage scale in which all of the devices in the second outage device set can be in outage; and a conflict detection device for receiving a power supply guarantee device set including PSGR related devices, and judging, for each device in the power supply guarantee device set, whether the device is included in the power grid outage scale. | 08-11-2011 |
| 20120016716 | JOINT MULTI-CHANNEL CONFIGURATION OPTIMIZATION FOR RETAIL INDUSTRY - A data integration module is operable to integrate a plurality of data sources, a customer preference module builds a model representing preference to different channels in merchandise category for each customer segment. A customer satisfaction module creates a model representing customer satisfaction metrics. A joint multi-channel optimization module is operable to use an optimization model that utilizes the customer preference model and the customer satisfaction model and maximize retailer's profit and customer satisfaction. | 01-19-2012 |
| 20120046991 | COMPETING SIMULATOR IN MULTI-CHANNEL RETAILING ENVIRONMENT AMONG MULTIPLE RETAILERS - A system, method and computer program product for providing the ability for retailers to devise a current channel strategy (e.g., adaptive price setting) that considers competitors in a dynamic competing environment, and that enables computing a competitive advantage of a channel. To estimate a price for selling a product j in a commerce channel comprises: a) receiving, at a processor device, real market data including sales and price history data of a product j sold by one or more retailers over one or alternate sales channels t; generating, by the processor device, a competitive advantage parameter value based on the sales and price history data; and, computing, utilizing the competitive advantage parameter value, an optimum price for a particular product to be marketed in one of the one or alternate sales channel. | 02-23-2012 |
| 20120078943 | HIGH QUANTITATIVE PATTERN SEARCHING USING SPATIAL INDEXING - A computer searching technique identifies high quantitative patterns in data. A spatial indexing technique, such as an R-tree is used to represent the data. Then a pattern searching algorithm is used to identify anchor points that define the componentwise minimum patterns. High quantitative patterns are found responsive to the componentwise minimum patterns. The search strategy is demonstrated relevant to the problem of finding suitable locations for a retail business with reference to environments of prior successful retail businesses. | 03-29-2012 |
| 20120084118 | SALES PREDICATION FOR A NEW STORE BASED ON ON-SITE MARKET SURVEY DATA AND HIGH RESOLUTION GEOGRAPHICAL INFORMATION - A method for predicting sales for a new store in a certain geographical area is disclosed, the method comprising geographic and non-geographic information and customer segmentation in the area to estimate sales and optionally the impact on existing competitor stores. | 04-05-2012 |
| 20120254179 | CLUSTERING CUSTOMERS - A computer implemented method for clustering customers includes receiving a source set of customer records, wherein each customer record represents one customer, and each customer record includes at least one data attribute, and each data attribute has an attribute value; pre-processing the source set of customer records to generate a pre-processed set of customer records; executing a clustering algorithm on the pre-processed set of customer records to group the pre-processed set of customer records into clusters of a pre-defined number. The pre-processing comprises: determining the type of a customer in the source set of customer records; using a type attribute value to indicate the type of the customer in its customer record; normalizing data attribute values and type attribute values; weighting to the data attribute values and the type attribute values respectively to obtain weighted attribute values of the data attribute and weighted attribute values of the tune attribute. | 10-04-2012 |
| 20120290233 | METHOD FOR DETECTING CONFLICTS BETWEEN OUTAGE REQUESTS AND POWER SUPPLY GUARANTEE REQUESTS IN A POWER GRID - A method detects conflicts between a power supply guarantee request (PSGR) and an outage request (OR) in a power grid. The method comprises receiving a first outage device set including OR related devices and a power supply guarantee device set including PSGR related devices. Geographic information about devices in the power grid is used to determine a second outage device set, which includes devices in the first outage device set and accompanying outage devices that need to be in outage together with devices in the first outage device set. Power grid topology information is used to determine a power grid outage scale in which all devices in the second outage device set can be in outage. For each device in the power supply guarantee device set, the method detects whether the device is included in the power grid outage scale, to determine any conflict between the PSGR and OR. | 11-15-2012 |
| 20120290580 | CLUSTERING CUSTOMERS - A computer implemented method for clustering customers includes receiving a source set of customer records, wherein each customer record represents one customer, and each customer record includes at least one data attribute, and each data attribute has an attribute value; pre-processing the source set of customer records to generate a pre-processed set of customer records; executing a clustering algorithm on the pre-processed set of customer records to group the pre-processed set of customer records into clusters of a pre-defined number. The pre-processing comprises: determining the type of a customer in the source set of customer records; using a type attribute value to indicate the type of the customer in its customer record; normalizing data attribute values and type attribute values; weighting to the data attribute values and the type attribute values respectively to obtain weighted attribute values of the data attribute and weighted attribute values of the type attribute. | 11-15-2012 |
| Patent application number | Description | Published |
| 20100187917 | MICRO STAGE WITH 6 DEGREES OF FREEDOM - A micro stage with 6 degrees of freedom used in super-precise processing and sensing equipment filed is disclosed. The micro stage has three sets of electromagnetic driving units arranged in a horizontal plane for driving the micro stage to obtain movements within the horizontal plane with 3 degrees of freedom in X, Y and θ | 07-29-2010 |
| 20100208227 | DUAL-STAGE SWITCHING SYSTEM FOR LITHOGRAPHIC MACHINE - A dual-stage switching system for lithographic machine includes a wafer stage to be operated in an exposure station and another wafer stage to be operated in a pre-processing station. The two wafer stages are provided on a base, with four 2-DOF driving units capable of moving along X direction and Y direction being provided along the edge of the base, and the wafer stages being disposed in a space surrounded by the four 2-DOF driving units and suspended on an upper surface of the base by air bearings. Each of the 2-DOF driving units includes upper and lower linear guides and a guiding sleeve, with the upper and lower linear guides being installed vertical to each other in their corresponding guiding sleeve. Two adjacent 2-DOF driving units cooperatively drive the wafer stage) to move in the X direction and Y direction. | 08-19-2010 |
| 20120099094 | DUAL-STAGE EXCHANGE SYSTEM FOR LITHOGRAPHIC APPARATUS - A dual-stage exchange system for a lithographic apparatus comprises a silicon chip stage ( | 04-26-2012 |
| 20120099095 | DUAL-STAGE EXCHANGE SYSTEM FOR LITHOGRAPHIC APPARATUS - A dual-stage exchange system for a lithographic apparatus comprises a silicon chip stage ( | 04-26-2012 |
| 20120127448 | DUAL WAFER STAGE EXCHANGING SYSTEM FOR LITHOGRAPHIC DEVICE - A dual wafer stage exchanging system for a lithographic device is disclosed, said system comprises two wafer stages running between an exposure workstation and a pre-processing workstation, and said two stages are set on a base and suspended above the upper surface of the base by air bearings. Each wafer stages is passed through by a Y-direction guide rail respectively, wherein one end of said guide rail is connected with a main driving unit and another end of said guide rail is detachably coupled with one of the two X-direction auxiliary driving units with single degree of freedom, and said two wafer stages are capable of moving in Y-direction along the guide rails and moving in X-direction under the drive of the auxiliary driving units with single degree of freedom. The position exchange of said two wafer stages can be enabled by the detachment and connection of the Y-direction guide rails and the auxiliary units with single degree of freedom. | 05-24-2012 |
| 20130024157 | TWO-DIMENSIONAL LOCATING METHOD OF MOTION PLATFORM BASED ON MAGNETIC STEEL ARRAY - A two-dimensional locating method of a motion platform based on a magnetic steel array involves the following steps: placing more than four linear Hall sensors at any different positions within one or more polar distances of the magnetic steel array on the surface of the motion platform in a motion system; determining a magnetic flux density distribution model according to the magnetic steel array; determining the mounting positions of the above-mentioned linear Hall sensors, which are converted into phases with respect to the mass center of the motion platform; recording the magnetic flux density measured values of the linear Hall sensors as the motion proceeds; solving the phases of the mass center of the motion platform in a plane, with the measured values being served as observed quantities and the magnetic flux density distribution model being served as a computation model; and determining the position of the mass center of the motion platform with respect to an initial phase according to the phase, so as to realize the planar location of the motion platform. The present invention provides a simple, fast and robust method for computing mass center positions for a motion system containing a magnetic steel array. | 01-24-2013 |
| 20130038853 | NANOMETER-PRECISION SIX-DEGREE-OF-FREEDOM MAGNETIC SUSPENSION MICRO-MOTION TABLE AND APPLICATION THEREOF - A nanometer precision six-DOF magnetic suspension micro-stage and the application thereof are provided which are mainly used in semiconductor photolithography devices. The micro-stage includes a cross support and four two-DOF actuators. Each 2-DOF actuator comprises a vertically polarized permanent magnet, a horizontal force coil and a vertical force coil; the permanent magnet being mounted on an end of the cross support, the horizontal force coil and the vertical force coil being arranged on a side of and below the permanent magnet respectively and being spaced apart from the permanent magnet; the cross support and four vertically polarized permanent magnets constitute a mover of the micro-stage; the horizontal force coil and the vertical force coil being fixed by a coil framework respectively and constituting a stator of the micro-stage; and the stator being mounted on a base of the micro-stage. A dual-wafer table positioning system of a photolithography machine may be constructed by two said micro-stages in combination with a two-DOF large stroke linear motor. The present invention features simple structure, large driving force, small mass and absence of cable disturbance, and is possible to realize high precision, high acceleration six-DOF micro-motion. | 02-14-2013 |
| Patent application number | Description | Published |
| 20090320620 | DOOR-TYPE PASSENGER SECURITY INSPECTION APPARATUS AND METHOD FOR DETECTING CONTRABAND ARTICLES SUCH AS NARCOTIC DRUGS, EXPLOSIVES - The present invention discloses a door-type passenger security inspection apparatus comprising: an air source supplying an air flow; a spraying device for spraying the air flow onto the body and clothes of a passenger being inspected; an air-spray moving device for moving the spraying device; a collecting device for collecting suspicious particles of contraband articles separated from the body and the clothes of the passenger; and a detecting device for detecting the suspicious particles of contraband articles collected by the collecting device. Further, the present invention also provides a method for passenger security inspection on prohibited-articles. With the technical solution of the present inventions contraband articles such as narcotic drugs and explosives may be detected reliably and effectively. Thus, aiming at the requirements of anti terror, the present invention is able to ensure the security of persons and facilities at important occasions, such as airports, stations, national defenses public security, fire protection, anti-terror, customs, environmental protection, scientific research. | 12-31-2009 |
| 20090321638 | SECURITY INSPECTION DOOR - The present invention discloses a security inspection door comprising a narcotic drug/explosive detecting subsystem, a radioactive substance detecting subsystem and a metal detecting subsystem which are provided in a tank body, wherein electromagnetic radiation shields are respectively provided around the three detecting subsystems, so that the narcotic drug/explosive detecting subsystem, the radioactive substance detecting subsystem and the metal detecting subsystem are isolated from one another and are not interfered with one another. In the present invention, the narcotic drug/explosive detecting subsystem, the radioactive substance detecting subsystem and the metal detecting subsystem are combined together for the first time to form a novel security inspection door, so the narcotic drugs/the explosives, the radioactive substances and the dangerous metal articles can be detected at the same time. Further, in the present invention, electromagnetic radiation shields are respectively provided around the three detecting subsystems, so that the three detecting subsystems are isolated from one another and are not interfered with one another, and thus, the inspection reliability and the inspection accuracy are improved. | 12-31-2009 |
| 20100269930 | Device for Intermittently Jetting Gas - A device for intermittently jetting gas includes a gas source, a gas conduit with one end being communicated with the gas source and the other end being in communication with a nozzle, a rotary disc and a motor, the disc being mounted on a rotating shaft of the motor for rotating along with the shaft, wherein the rotary disc is provided with at least one opening through which a gas in the gas conduit is jetted when the opening is aligned with the outlet of the gas conduit. The device can freely adjust the gas jetting frequency by adjusting the rotation speed of the motor, and thus increase the gas jetting frequency and effectively flow off the suspicious particles carried in the human clothes. | 10-28-2010 |
| Patent application number | Description | Published |
| 20110071833 | SPEECH RETRIEVAL APPARATUS AND SPEECH RETRIEVAL METHOD - Disclosed are a speech retrieval apparatus and a speech retrieval method for searching, in a speech database, for an audio file matching an input search term by using an acoustic model serialization code, a phonemic code, a sub-word unit, and a speech recognition result of speech. The speech retrieval apparatus comprises a first conversion device, a first division device, a first speech retrieval unit creation device, a second conversion device, a second division device, a second speech retrieval unit creation device, and a matching device. The speech retrieval method comprises a first conversion step, a first division step, a first speech retrieval unit creation step, a second conversion step, a second division step, a second speech retrieval unit creation step, and a matching step. | 03-24-2011 |
| 20110131236 | SPEECH RETRIEVAL APPARATUS AND SPEECH RETRIEVAL METHOD - Disclosed are a speech retrieval apparatus and a speech retrieval method for searching, in an audio file database, for one or more target audio files by using one or more input search terms. The speech retrieval apparatus comprises a related document obtaining unit configured to search, in a related document database where documents related to audio files in the audio file database are stored, for one or more related documents by using the search terms; a correspondence audio file obtaining unit configured to search, in the audio file database, for one or more correspondence audio files corresponding to the obtained related documents; and a speech-to-speech search unit configured to search, in the audio file database, for the target audio files by using the obtained correspondence audio files. | 06-02-2011 |