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Jun Yang

Jun Yang, Shenzhen CN

Patent application numberDescriptionPublished
20100282968Device and method for terahertz imaging with combining terahertz technology and amplitude-division interference technology - This invention provides a device and a method for THz imaging to obtain real 3D image of sample and achieve high resolution, by combining THz technology and amplitude-division interference technology.11-11-2010
20100289367PERMANENT MAGNET ROTOR - A permanent magnet rotor comprising a shaft, a rotor core fixed to the shaft, a magnet disposed around the core, and a linker fixed relative to the shaft and located at one end of the core; wherein an elastic clamping structure is arranged between the linker and the magnet such that rotational torque of the magnet can be transferred to the shaft via the linker.11-18-2010
20110093614METHOD AND DEVICE FOR DUPLICATING MULTICAST PACKETS - A message sending method is provided, which includes: obtaining route feature information of a user, and sending a request of the user, where the request is data in an Efficient Extensible Markup Language (XML) Interchange (EXI) format, and the route feature information is carried in a header of the data in the EXI format. A message processing method, a client, a router, and a message processing system are further provided. Through preceding technical solutions, a user request message is routed according to route feature information in an EXI header, thereby reducing a system overhead and improving a distribution processing efficiency.04-21-2011
20110159849Method, Device, and Mobile Terminal for Controlling Locking and Unlocking - A method, a device, and a mobile terminal for controlling locking and unlocking are provided. The method includes the following steps. An acceleration sensor is adopted to detect a location state of a mobile terminal. A stabilization timer is started and a stabilization timing value of the stabilization timer is monitored when the mobile terminal is in an unlocked or a locked state. The stabilization timing value is reset to restart timing when it is monitored that the location state of the mobile terminal is unstable. The mobile terminal is controlled to enter a stable and unlocked state when it is monitored that the stabilization timing value reaches a stabilization timing threshold. Through the technical solutions, it is determined whether the mobile terminal enters the stable and unlocked state according to the location state of the mobile terminal in the locked or unlocked state. In this manner, the mobile terminal may not be locked in the stable state, and the afterward operations may be facilitated, thereby increasing usability of the mobile terminal and improving user's experience.06-30-2011

Jun Yang, San Jose, CA US

Patent application numberDescriptionPublished
20110066428SYSTEM FOR ADAPTIVE VOICE INTELLIGIBILITY PROCESSING - An adaptive audio system can be implemented in a communication device. The adaptive audio system can enhance voice in an audio signal received by the communication device to increase intelligibility of the voice. The audio system can adapt the audio enhancement based at least in part on levels of environmental content, such as noise, that are received by the communication device. For higher levels of environmental content, for example, the audio system might apply the audio enhancement more aggressively. Additionally, the adaptive audio system can detect substantially periodic content in the environmental content. The adaptive audio system can further adapt the audio enhancement responsive to the environmental content.03-17-2011
20110172997SYSTEMS AND METHODS FOR REDUCING AUDIO NOISE - Various embodiments of systems and methods for reducing audio noise are disclosed. One or more sound components such as noise and network tone can be detected based on power spectrum obtained from a time-domain signal. Results of such detection can be used to make decisions in determination of an adjustment spectrum that can be applied to the power spectrum. The adjusted spectrum can be transformed back into a time-domain signal that substantially removes undesirable noise(s) and/or accounts for known sound components such as the network tone.07-14-2011

Jun Yang, Ann Arbor, MI US

Patent application numberDescriptionPublished
20100068134METHODS OF ENHANCING KINETIC PROPERTIES OF HYDROGEN STORAGE MATERIALS BY SELF-CATALYSIS - Methods of enhancing the kinetic properties of solid-state hydrogen storage materials are disclosed. The methods of the present invention comprise a process of utilizing built-in, ancillary reactions to effectually catalyze primary hydrogen storage reactions. This self-catalysis process gives rise to novel mechanisms for solid-state hydrogen storage compositions that benefit from enhanced kinetic properties, thereby increasing the usefulness of hydrogen storage technologies. The methods of enhancing the kinetic properties of hydrogen storage compositions by implementing a self-catalyzing reaction mechanism generally include formulating a hydrogen desorption pathway in a hydrogen storage composition, the pathway including a hydrogen releasing reaction and an ancillary reaction; and selecting the ancillary reaction to produce a product that serves to enhance the kinetic properties of the hydrogen releasing reaction.03-18-2010
20100233076Hydrogen Storage Materials - According to at least one aspect of the present invention, a hydrogen storage material is provided. In at least one embodiment, the material comprises a borohydride compound of the formula M(BH09-16-2010
20110008693HYDROGEN STORAGE MATERIALS CONTAINING AMMONIA BORANE - According to at least one aspect of the present invention, an ammonia borane containing hydrogen storage material is provided to be present with substantially reduced formation of borazine or diborane. In at least one embodiment, the hydrogen storage material includes at least one ammonia borane (NH01-13-2011
20110142750HYBRID HYDROGEN STORAGE SYSTEM AND METHOD USING THE SAME - According to one aspect of the present invention, a hybrid hydrogen storage system is provided. In one embodiment, the hybrid hydrogen storage system includes: a first hydrogen storage material present at a first volume percent (%) having a first gravimetric capacity and a first volumetric capacity; and a second hydrogen storage material forming an unreacted mixture with the first hydrogen storage material and present at a second volume % being 100 volume % minus the first volume %, the second storage material having a second gravimetric capacity and a second volumetric capacity, the first gravimetric capacity at the first volume % being higher or lower than the second gravimetric capacity at the second volume %, and the first volumetric capacity at the first volume % being the other of higher or lower than the second volumetric capacity at the second volume %.06-16-2011
20110142752Hydrogen Storage Materials - In one embodiment, a hydrogen storage system includes a core of hydrogen sorbent material and a shell of crystalline metal hydride material enclosing at least a portion of the core of hydrogen sorbent material. In another embodiment, the hydrogen storage system further includes an intermediate layer of amorphous metal hydride material, at least a portion of which being positioned between the core of hydrogen sorbent material and the shell of crystalline metal hydride material.06-16-2011
20110143173Metal Oxygen Battery Containing Oxygen Storage Materials - A battery system includes a metal oxygen battery. The metal oxygen battery includes a first electrode, an oxygen storage material, and a selective transport member separating the oxygen storage material and the first electrode.06-16-2011
20110143226Metal Oxygen Battery Containing Oxygen Storage Materials - According to one aspect of the present invention, a battery system is provided. In one embodiment, the battery system includes a metal oxygen battery including a first electrode and a second electrode, the second electrode including a metal material (M); and an oxygen containment unit in communication with and external to the metal oxygen battery, the oxygen containment unit including an oxygen storage material. In another embodiment, the metal oxygen battery and the oxygen containment unit are in a closed-loop with respect to each other.06-16-2011
20110143227Metal Oxygen Battery Containing Oxygen Storage Materials - A battery system includes a metal oxygen battery. The metal oxygen battery includes a first electrode and a second electrode. The second electrode includes a metal material (M). The metal oxygen battery is in communication with an oxygen storage material. In certain instances, the oxygen storage material is contained within an oxygen containment unit. The metal oxygen battery and the oxygen containment unit may be in a closed-loop with respect to each other. The battery system further includes a conduit for providing fluid communication from one of the metal oxygen battery and the oxygen containment unit to the other of the metal oxygen battery and the oxygen containment unit.06-16-2011
20110143228Metal Oxygen Battery Containing Oxygen Storage Materials - In one aspect of the present invention, a battery system is disclosed. In one embodiment, the battery system includes a metal oxygen battery (MOB) having a first electrode and second electrode. The second electrode includes a metal material. The battery system also includes an oxygen storage material disposed within the metal oxygen battery. In another embodiment, the oxygen storage material is on oxygen communication with the first electrode.06-16-2011
20110143913CATALYST ASSEMBLY AND METHOD OF MAKING THE SAME - According to one aspect of the present invention, there is provided a catalyst assembly. In one embodiment, the catalyst assembly includes a two-dimension (2-D) extensive catalyst including one or more precious catalytic metals and having a catalyst crystal plane; and a substrate supporting the 2-D extensive catalyst, the substrate including one or more non-precious catalytic metals and having a substrate crystal plane in substantial alignment with the catalyst crystal plane.06-16-2011
20110144229BIOCOMPATIBLE COATINGS, AND METHODS OF MAKING AND USING THE SAME - Disclosed herein are biocompatible coatings for a substrate, the biocompatible coating including at least one polyanionic/polycationic bilayer including at least one nitric oxide generating moiety, wherein the polyanionic/polycationic bilayer has a layer of a polycationic polymeric material; and a layer of polyanionic material capable of non-covalently bonding to the polycationic polymeric material. Devices incorporating such coatings, and methods of making and using such coatings are also disclosed herein.06-16-2011
20110165061METHOD OF ENHANCING THERMAL CONDUCTIVITY IN HYDROGEN STORAGE SYSTEMS - A system for reversibly storing hydrogen includes a storage tank with an internal volume with a thermally conducting composite material situated within the storage tank and having a three-dimensional and interconnected framework of a conductive metal within the internal volume of the storage tank.07-07-2011
20110165475Metal Oxygen Battery Containing Oxygen Storage Materials - In one embodiment, a metal oxygen battery is provided. The metal oxygen battery includes a battery housing including a first compartment and a second compartment. The first compartment includes a first electrode and an oxygen storage material in communication with the first electrode. The second compartment includes a second electrode and the second electrode includes a metal material (M). In another embodiment, the oxygen storage material is configured as a number of particles disposed within the first electrode. In certain instances, at least a portion of the number of particles are each contained within a selective transport member. In certain other instances, the selective transport member is oxygen permeable and electrolyte impermeable.07-07-2011
20110165476Metal Oxygen Battery Containing Oxygen Storage Materials - In one embodiment, a metal oxygen battery system includes a metal oxygen battery having an electrode compartment. The electrode compartment includes an electrode being formed of an oxygen storage material. In another embodiment, the oxygen storage material includes an ion conducting component. In yet another embodiment, the oxygen storage material includes an electron conducting component. In yet another embodiment, the oxygen storage material includes a catalytic component. In yet another embodiment, at least one of the ion conducting component, the electron conducting component, and the catalytic component is attached to the oxygen storage material via a linker or as a pendant group.07-07-2011
20110166012CATALYST ASSEMBLY AND METHOD OF MAKING THE SAME - In one embodiment, the catalyst assembly includes a two-dimension (2-D) extensive catalyst having a catalyst crystal plane; and a substrate supporting the 2-D extensive catalyst and having a substrate crystal plane in substantial alignment with the catalyst crystal plane. In certain instances, the catalyst crystal plane includes first and second adjacent catalyst atoms defining a catalyst atomic distance, the substrate crystal plane includes first and second adjacent substrate atoms defining a substrate atomic distance, a percent difference between the catalyst and substrate atomic distances is less than 10 percent.07-07-2011
20110262842SYSTEM AND METHOD FOR STORING AND DISCHARGING HEAT IN A VEHICLE - In at least one embodiment, an apparatus comprising a hydrogen storage system and a heat storage system is provided. The hydrogen storage system is configured to store hydrogen and to deliver a first heated fluid stream to an electrical generation system that generates a second heated fluid stream and electrical energy in response to the first heated fluid stream. The heat storage system includes a phase change material. The heat storage system is in fluid communication with the electrical generation system to deliver heat from the second heated fluid stream to a fuel cell stack.10-27-2011

Jun Yang, Dove Canyon, CA US

Patent application numberDescriptionPublished
20080294247Prosthetic Heart Valve - The present invention includes prosthetic heart valves having flexible leaflets and methods for fabricating the valves which improve upon the prior art.11-27-2008
20080294248Prosthetic Heart Valve - The present invention includes prosthetic heart valves having flexible leaflets and methods for fabricating the valves which improve upon the prior art.11-27-2008
20110000073Leaflet Alignment Fixture and Methods Therefor - Described herein is an assembly and alignment tool for aligning leaflets of a soft leaflet prosthetic heart valve and fix the leaflets to each other and/or to a wireform or stent. In embodiments, the assembly or alignment tool includes a mandrel configured to support one or more leaflets of a prosthetic valve. The mandrel includes at least one suture hole disposed on the surface thereof to allow a needle to pass through when sewing the one or more leaflets to a wireform.01-06-2011

Patent applications by Jun Yang, Dove Canyon, CA US

Jun Yang, Cupertino, CA US

Patent application numberDescriptionPublished
20090006996Updating Content Within A Container Document For User Groups - A system and method for authenticating a user based on the user's association with a user group, enabling the user to configure a container document associated with the user group, receiving input from the user regarding configuring the container document associated with the user group, and providing an actual representation of the container document to the user based on the received input.01-01-2009
20090037806Cross-Domain Communication - The subject matter of this specification can be embodied in, among other things, a method that includes generating, within a web-accessible document, a parent container document associated with a first Internet domain and one or more child container documents within the parent container document and associated with a second Internet domain. The method also includes receiving, by the parent container document, information requested from a server associated with the first Internet domain, and communicating the information from the first Internet domain to the second Internet domain using the parent container document associated with the first Internet domain to transmit the information to the one or more child container documents associated with the second Internet domain.02-05-2009
20090037935Updating The Configuration of Container Documents - A system and method for registering components of a user interface, registering events regarding configuration of a container document, associating registered components with registered events, receiving information associated with registered event that has occurred for one of the registered components, and providing the information associated with registered event to all other associated components.02-05-2009
20100089450NEAR-FIELD DIFFRACTION SUPERPOSITION OF LIGHT BEAMS FOR CONCENTRATING SOLAR SYSTEMS - Disclosed herein is a concentrating photovoltaic system utilizing a lens/reflector array to spatially divide the incident sunlight into separate incoherent beams, and a principle optical element to superpose the separate beams that undergo near-field diffraction/transmission, and form a uniform illumination pattern on the photovoltaic (PV) cell with similar shape and size. The array and principle optical element can be flexibly disposed in the system as long as the near-field diffraction condition is satisfied. The PV cell is disposed close to the focus of the principle optical element, and the concentrated illumination pattern on the PV cell is nearly a geometric projection of individual lens/reflector in the array. The size of the pattern is controlled by changing the focal lengths of the array and principle optical element, the distance between them, and the size of individual lens/reflector in the array. The system is insensitive to component misalignment and has the advantage of achieving high concentration ratio and efficient energy conversion with relatively low cost and compact design.04-15-2010
20100274795METHOD AND SYSTEM FOR IMPLEMENTING A COMPOSITE DATABASE - Methods and systems are provided that may be used to selectively implement and/or search a composite database comprising a flat file and a relational database based on the query.10-28-2010

Patent applications by Jun Yang, Cupertino, CA US

Jun Yang, Shenzhen City CN

Patent application numberDescriptionPublished
20100012809ELECTRONIC DEVICE WITH MULTI-ANGLE POSITIONING SUPPORT - An electronic device comprises a back cover and a support. The back cover defines a first contact area. The support is pivoted to the back cover by a pivot shaft, defines a second contact area contacting the first contact area. A plurality of positioning holes are defined in and disposed on the second contact area around the pivot shaft. The electronic device further comprises at least one retractable spring balls projected from the first contact area of the back cover. The spring balls are configured for cooperating with the positioning holes of the support. The support can stay at a variety of positions.01-21-2010

Jun Yang, Andover, MA US

Patent application numberDescriptionPublished
20090310520WIDEBAND TELEPHONE CONFERENCE SYSTEM INTERFACE - A telephone conferencing system interface is provided which is operable at high bandwidths via a VoIP telephone. A teleconference system interface module is connected to a the VoIP telephone via the telephone's headset connector and to a teleconference system via conferencing input circuitry, conferencing output circuitry and interface module connection circuitry. The teleconference interface module includes ground isolation transformers selected for high bandwidth operation and includes a privacy switch which can disconnect a teleconference from the VoIP telephone.12-17-2009

Jun Yang, Drexel Hill, PA US

Patent application numberDescriptionPublished
20090139030PATIENT ALIGNMENT DEVICE - A patient alignment device includes a table and a rotatable member positioned to rotate relative to the table. The rotatable member may be a head-support plate or a board which supports substantially all of a patient's body. A motor moves the board or plate so as to align the patient's body, or a part of the body, in a desired direction. The board may be formed in two segments, the segments being selectively connectable to each other, the segments also being selectively connectable to the table by pins, at various possible pivot points. Positioning of the pins determines the mode of rotation of the board. The invention allows an operator to align the patient's body with precision, by remote control, and without interrupting the medical procedure.06-04-2009

Jun Yang, Amherst, NY US

Patent application numberDescriptionPublished
20090142832Indoles, Derivatives, and Analogs Thereof and Uses Therefor - Indole derivatives and analog compounds and pharmaceutical compositions comprising the same are provided. Also provided are methods of using these compounds to inhibit tubulin polymerization in a cell associated with a proliferative disease or to treat a cancer.06-04-2009

Jun Yang, Quanzhou CN

Patent application numberDescriptionPublished
20090127264RESEALABLE GIFT PACKAGING - A resealable gift packaging with a concealed compartment accessible through a first opening and a second opening. The first opening is covered by a sealed openable cover. The second opening is selectively sealable by a resealable cover. A gift and message can be placed inside the resealable gift packaging to give the appearance to a person receiving the gift that the gift was purchased in the gift packaging and was not opened or accessed by the person giving the gift.05-21-2009

Jun Yang, Ningbo CN

Patent application numberDescriptionPublished
20090071491Skin removing implement - A device for removing skin having a cartridge with a file containing a plurality of cutting edges for scraping skin, wherein the cartridge is connected to a handle such that the removed skin is collected between the cartridge and the handle, and a removable cover that may be connected to the cartridge by placing the cover over the cutting surface so as to shield the user from the cutting surface when the implement is not in use and/or to prevent removed skin from exiting the cartridge through the cutting surface.03-19-2009

Jun Yang, Houston, TX US

Patent application numberDescriptionPublished
2008031823114-3-3 ZETA OVER-EXPRESSION AS A POOR PROGNOSIS FACTOR, AND A THERAPEUTIC TARGET IN MULTIPLE CANCER TYPE - Methods of determining prognosis in a subject with a hyperproliferative disease, including determining expression and/or function of 14-3-3 zeta in the subject, are disclosed. Also disclosed are methods of making a pharmaceutical agent that modulates apoptosis, including the steps of obtaining one or more candidate, testing the one or more candidate substances to determine their ability to modulate the expression and/or function of 14-3-3 zeta, selecting a candidate substance determined to modulate the expression and/or function of 14-3-3 zeta, and making a pharmaceutical composition that includes the selected candidate substance. In addition, methods of treating a subject with a hyperproliferative disease, including making a pharmaceutical agent by the methods set forth herein, and administering the pharmaceutical agent to a subject, are disclosed. The hyperproliferative disease can be cancer, such as breast cancer.12-25-2008

Jun Yang, Canton, MI US

Patent application numberDescriptionPublished
20080286196Multi-Component Hydrogen Storage Material - A reversible hydrogen storage composition having an empirical formula of:11-20-2008

Jun Yang, Simpsonville, SC US

Patent application numberDescriptionPublished
20080271459Method and system for regulating a cooling fluid within a turbomachine in real time - A method and system for regulating a cooling fluid within a turbomachine in real time. The system may an external flow conditioning system for adjusting at least one property of the cooling fluid, wherein the external flow conditioning system comprises an inlet portion and an outlet portion. The system may also include at least one heat exchanger; at least one control valve; at least one bypass orifice; at least one stop valve; and a control system.11-06-2008

Jun Yang, Chongqing KR

Patent application numberDescriptionPublished
20110171315Oral recombinant helicobacter pylori vaccine and preparing method thereof - The invention relates to a recombinant protein used for immunoprophylaxis of human 07-14-2011

Jun Yang, Jiangsu CN

Patent application numberDescriptionPublished
20110192791METHOD AND DEVICE FOR BIOGENIC WASTE TREATMENT - The present discloses a method and a device for biogenic waste, or bio-waste treatment, and said method is as follows: Firstly, the biogenic waste is evenly mixed with water vapor, or steam, heating and pressurizing so that the temperature reaches 130-190° C. and the pressure reaches 1.5-1.9 MPa after mixture, and this state is maintained for 1-25 minutes; Then, the pressure of the mixture of said biogenic waste and water vapor is reduced to normal pressure, such as atmospheric pressure so as to conduct low-molecularization, such as decreasing or reduction of molecular weight of the biogenic waste to obtain a low-molecularized mixture, such as a low molecular weight mixture; finally, the low-molecularized mixture, such as low-molecular weight mixture is separated so as to obtain the final products. Said device includes reaction vessel, stirring device, vapor input device, pressure-reducing regulator and separation device.08-11-2011
20120069650SUB-THRESHOLD MEMORY CELL CIRCUIT WITH HIGH DENSITY AND HIGH ROBUSTNESS - A high-density and high-robustness sub-threshold memory cell circuit, having two PMOS transistors P03-22-2012

Jun Yang, Milpitas, CA US

Patent application numberDescriptionPublished
20110215903Apparatus and Associated Methods - In one or more embodiments described herein, there is provided an apparatus configured to identify a particular motion state of a portable electronic device, and vary the geographical location data sampling rate for the portable electronic device based on the identified particular motion state of the portable electronic device.09-08-2011
20120100867Determining Points of Interest of a Mobile User - Methods, systems and apparatus for tracking points of interest of a user of a mobile device are disclosed. One method includes determining points of interest of a user of a mobile device. The method includes obtaining user-related information, wherein the user-related information includes spatial information about the user, and determining at least one point of interest of the user based on the user-related information. Another embodiment includes an apparatus for determining points of interest of a user. For one embodiment, the apparatus is a mobile device. The mobile device is operative to obtain user-related information, wherein the user-related information comprising spatial information about the user, and the mobile device is operative to determine at least one point of interest of the user based on the user-related information.04-26-2012
20120100869Location Based User Behavior Analysis and Applications - Methods, systems and apparatuses for generating a user profile of a mobile device user are disclosed. One method includes tracking user stays of the user over time, wherein the user stays include at least one location, and generating the user profile based at least in part on at least one of an arrival time, a time duration or a frequency of visits of the user at each of the user stays. Another method includes determining a current state of a mobile device user. The method includes tracking locations of user stays of the mobile device user over time, and determining a current state of a mobile device user based on user stays within a predetermined time of a present time, wherein the predetermined time is dependent upon an application of the user device or an observed behavior of a user of the user device.04-26-2012

Jun Yang, Singapore SG

Patent application numberDescriptionPublished
20110287259NANOCOMPOSITES - The invention describes a nanocomposite particle comprising a nanoparticle having a surface comprising a silver salt, and at least one region of metallic gold on said surface. The invention also provides a nanocomposite material comprising said particles and processes for making the nanocomposite material, either by allowing gold in nanoparticles having a silver salt on the surface thereof to at least partially diffuse through the silver salt so as to form at least one region of metallic gold on said surface, or else by depositing metallic gold on the surfaces of nanoparticles having the silver salt on the surface thereof.11-24-2011

Jun Yang, New South Wales AU

Patent application numberDescriptionPublished
20110293141DETECTION OF VEHICLES IN AN IMAGE - The invention concerns a traffic surveillance system that is used to detect and track vehicles in video taken of a road from a low mounted camera. The inventors have discovered that even in heavily occluded scenes, due to traffic density or the angle of low mounted cameras capturing the images, at least one horizontal edge of the windshield is least likely to be occluded for each individual vehicle in the image. Thus, it is an advantage of the invention that the direct detection of a windshield on its own can be used to detect a vehicle in a single image. Multiple models are projected (12-01-2011

Jun Yang, Rockville, MD US

Patent application numberDescriptionPublished
20120022121INDOLES, DERIVATIVES AND ANALOGS THEREOF AND USES THEREFOR - Indole derivatives and analogous compounds and pharmaceutical compositions comprising the same are provided. Also provided are methods of using these compounds to inhibit tubulin polymerization in a cell associated with a proliferative disease or to treat cancer, metastatic cancer, resistant cancer or multidrug resistant cancer, including inter-alia: prostate cancer, breast cancer, melanoma, colon cancer and bladder cancer.01-26-2012

Jun Yang, Plano, TX US

Patent application numberDescriptionPublished
20120088015Processing Of Whole Fruits And Vegetables, Processing Of Side-Stream Ingredients Of Fruits And Vegetables, And Use Of The Processed Fruits And Vegetables In Beverage And Food Products - Processing and use of whole fruits and vegetables or side-stream ingredients of juice extraction, paste, or ketchup process, or canning industry, in particular, the processing of the by-products, including pomace, and its use in beverage and food products.04-12-2012

Jun Yang, Suzhou City CN

Patent application numberDescriptionPublished
20120099740All-digital speaker system device - The present invention disclosed an all-digital speaker system device based on multi-bit Σ-Δ Modulation, comprising an A/D converter, an interpolation filter, a Σ-Δ modulator, a dynamic mismatch regulator, a differential buffer and a speaker array. The present invention takes advantage of the Σ-Δ modulation technique to effectively reduce the cost and complexity of the hardware realization of the speaker system device, thus realizing the full digitalization of the whole sound transmission link and the integration of the system device with low power dissipation and volume. Furthermore, the system device according to the present invention is provided with a better control ability on the local sound field, thus providing a better practicable method for the voice secret transmission.04-26-2012