Thermal gap pad // US9445528
This application relates to efficiently distributing heat within a portable computing device. More specifically an apparatus for conducting heat between internal components of the portable computing device is disclosed. The apparatus, referred to as a thermal gap pad, is configured to bridge a variably sized gap between internal components. This is accomplished by wrapping a resilient core in a layer of highly thermally conductive material. The resilient core allows a shape of the thermal gap pad to vary in accordance with a size of the gap. A resilience of the thermal gap pad can be adjusted to account for an amount of variance in the gap. In some embodiments, an electrically conductive layer can be added to facilitate the passage of electrical current through the thermal gap pad.
Electronic assembly with cooling device // US9445523
The invention relates to an electronic assembly comprising a plurality of electronic component groups and a cooling device for cooling the electronic component groups. The cooling device provides a cooling-power distributor. A cooling power of the cooling device can be individually controlled by the cooling-power distributor for every component group. Furthermore, the assembly provides temperature-registering means for every component group for registering a temperature of every component group, and a load-determining device for determining a parameter for every component group which describes the load experienced by a component group on the basis of the temperature registered for this component group. A control unit controls the cooling-power distributor on the basis of the parameters determined for the component groups.
Electronic card connection device and electronic device // US9445521
The present disclosure relates to an electronic card connection device and an electronic device. The electronic card connection device comprises a connector, an electronic card tray and a switch. The connector comprises a terminal housing and a shell, the shell and the terminal housing define a mating space. The electronic card tray being inserted in the mating space, the electronic card tray may comprise an electronic card receiving recess, a mounting block positioned in front of the electronic card receiving recess and an operating handle pivotally connected to the mounting block. The switch may be positioned alongside a rotation range of the operating handle, and partially protrudes into the rotation range allowing rotation of the operating handle to switch the state of the switch.
Display device and apparatus for side surface sealing of display panel // US9445518
Disclosed is a display device and an apparatus for side surface sealing of display panel, which enable to realize thin profile and good exterior appearance in device, wherein the display device includes a display panel including a first substrate with pad regions, a second substrate bonded to remaining portions of the first substrate except the pad regions, and an upper polarizing film attached to an entire upper surface of the second substrate; a panel support member joined to an edge of a lower surface of the display panel; a panel driving part including a flexible circuit film attached to the pad regions; and a side surface sealing member for covering each side surface of the display panel, the flexible circuit film, the plurality of pad regions, and each side surface of the upper polarizing film.
Etched multi-layer sheets // US9445517
A method includes creating an opening in a first outer layer of a multilayer sheet of material, the sheet of material having three or more layers of material, including the first outer layer and a second outer layer. A selective etchant is introduced through the opening, where the etchant selectively etches an interior metal layer of the multilayer sheet of material compared with the first and second outer layers. The selective etchant is permitted to etch material of the interior metal layer under the first outer layer.
Handle and display device equipped with handle // US9445514
A display device includes a display used to display an image, and a handle attached to a recess formed in a rear face of the display . The handle having a Z-shape in a side view connects between a first holder and a second holder via a connecting part . The second holder is projected outside the display device so as to achieve an easy-to-hold ability when the first mounting face of the first holder is fixed to the recess of the display device . The first holder is kept inside the thickness of the display device when the second mounting face of the second holder is fixed to the recess .
Packaging for eight-socket one-hop SMP topology // US9445507
A mechanism is provided for packaging a multiple socket, one-hop symmetric multiprocessor topology. The mechanism connects each of a first plurality of processor modules to a first multiple-socket planar via a respective one of a first plurality of land grid array connectors. The mechanism connects the first multiple-socket planar to a first side of a redistribution card via a second plurality of LGA connectors. The mechanism connects each of a second plurality of processor modules to a second multiple-socket planar via a respective one of a third plurality of LGA connectors. The mechanism connects the second multiple-socket planar to a second side of the redistribution card via a fourth plurality of LGA connectors.
Capacitance touch panel module and fabrication method thereof // US9445495
A method of fabricating a capacitance touch panel module includes forming a plurality of first conductive patterns on a substrate comprising a touching area and a peripheral area along a first orientation, a plurality of second conductive patterns along a second orientation, and a plurality of connecting portions in the touching area; forming a plurality of insulated protrusions, in which each insulated protrusion covering one connecting portion, and forming an insulated frame on the peripheral area; and forming a bridging member on each insulated protrusion.
Wiring substrate and display panel comprising same // US9445494
A display panel of an embodiment of the present invention includes a wiring board , a counter substrate which is provided on a viewer side of the wiring board , and a display medium layer which is provided between the wiring board and the counter substrate , wherein the wiring board includes a substrate and a plurality of metal wires provided on the counter substrate side of the substrate , and at least part of the plurality of metal wires has a moth-eye structure or inverted moth-eye structure in its surface.
Lighting system, lighting apparatus, and lighting control method // US9445480
Provided is a lighting apparatus and a method for controlling the same using a mobile device. A lighting system may include a mobile terminal, a hub configured to communicate with the mobile terminal, and an LED lamp configured to communicate with the hub. The mobile terminal may be configured to display an image captured or focused using a camera at the mobile terminal. The mobile terminal may transfer to the hub information corresponding to a selection of a region of the image. The hub may provide a wireless signal corresponding to the information received from the mobile terminal for changing a color of light emitted by the LED lamp. The LED lamp may be controlled based on the ZigBee communication protocol.
Light source module and light source system // US9445477
A primary optical unit and a photodetector unit are arranged on a side of a optical branching unit, on which primary terminals are arranged, and a lightconversion unit, which receives primary light, converts the primary light into secondary light, and emits the secondary light, is arranged on a side of the optical branching unit, on which secondary terminals are arranged, to enable guiding of the primary light from the primary optical unit to the lightconversion unit and guiding of the secondary light from the lightconversion unit to the photodetector unit through optical fibers.
Two-level LED security light with motion sensor // US9445474
A two-level LED security light with a motion sensor. At night, the LED is turned on for a low level illumination. When the motion sensor detects any intrusion, the LED is switched from the low level illumination to a high level illumination for a short duration time. After the short duration time, the LED security light returns to the low level illumination for saving energy. The LED security light includes a power supply unit, a light sensing control unit, a motion sensing unit, a loading and power control unit, and a lighting-emitting unit. The lighting-emitting unit includes one or a plurality of LEDs which may be turned-on or turned-off according to the sensing results from the light sensing control unit. When the motion sensing unit detects an intrusion, the illumination of the LED security light can be immediately turned on to the high level to scare away the intruder.
Backlight driving apparatus and liquid crystal display device using the same // US9445469
Disclosed is a backlight driving apparatus. The backlight driving apparatus includes a light source configured to include at least one LED, a DC-DC converter configured to generate a driving voltage according to a turn-on of a switching element and supply the driving voltage to the light source, a feedback circuit configured to generate a feedback voltage corresponding to a voltage level of the driving voltage supplied from light source, a duty controller connected to the light source, and configured to control a turn-on period of the LED according to an LED duty signal corresponding to a backlight dimming signal, and a switching controller configured to generate a PWM signal for controlling the turn-on of the switching element according to the feedback signal, generate a switching control signal corresponding to the PWM signal according to the LED duty signal, and selectively control the turn-on of the switching element.
Induction heating device and image forming apparatus having the same // US9445458
An induction heating device includes: a resonant circuit provided with a coil heating a workpiece inductively and a capacitor, the coil and the capacitor being coupled in parallel with each other; a switching element coupled in series with the resonant circuit; a power supply which applies to the resonant circuit, a direct-current input voltage whose instantaneous value can be changed with the lapse of time; and a power controller which controls power to the workpiece by turning the switching element ON at a certain time and changing an ON period of the switching element, and the power controller is characterized by turning the switching element ON with a delay of an integral multiple of a resonant period of the resonant circuit if a value of power to the workpiece is equal to or lower than a first threshold which is predetermined.
Heater and image heating apparatus including the same // US9445457
To provide a heater that can reduce fixing failure in a paper passing area while suppressing a temperature rise in a sheet non-passing area, and a fixing apparatus including the heater.
Resistors are connected in parallel between two conductive patterns that are provided on a heater substrate along the longitudinal direction of the substrate, and resistors are arranged so that the shortest current path of each of the resistors can overlap the shortest current path of an adjacent resistor in the longitudinal direction of the substrate.
Communicating arbitrary attributes using a predefined characteristic // US9445451
An electronic device that communicates input messages and output messages with another electronic device using a Bluetooth Low Energy communication protocol is described. In particular, the electronic device receives input messages using a predefined characteristic to convey input information associated with a set of input attribute types. A given input message includes one or more input-command characters specifying a given input attribute type in the set of input attribute types and, optionally, an input delimiter and an input value in an input argument associated with the given input attribute type. Moreover, the electronic device provides output messages using the predefined characteristic to convey output information associated with a set of output attribute types. A given output message includes one or more output-command characters specifying a given output attribute type in the set of output attribute types. In this way, the predefined characteristic can be repurposed to convey other attribute types.
Distributed computing in a wireless communication system // US9445408
Distributed computing in a wireless communication system. Reports may be received from a plurality of nodes in a wireless communication system. Each respective report may include information regarding computing resources at the respective node. A notification of a request for a computing resource may be received from a first wireless user equipment device. A first node may be selected from the plurality of nodes to provide the computing resource based on the reports received from the plurality of nodes. The first node may be assigned to provide the computing resource.
Method of providing non-native notifications and system thereof // US9445392
Embodiments of the present invention are directed to a method of providing non-native notifications and system thereof. These notifications are generated by non-native applications executing on a physically disjoint source device that is communicatively coupled with a target device via an account in a cloud. An application player executing on the source device is able to capture these non-native notifications. The target device is able to receive and present these non-native notifications to a user. Notifications include alerts, reminders, updates and messages generated by non-native applications. The user does not need to access the non-native applications, or the application player or source device they are executing on to see the non-native notifications. Instead, the user views these non-native notifications at a central location on the target device.
Automatic detection of device type for filtering of data // US9445391
Methods are provided for filtering, collecting, and analyzing location data for a plurality of devices in a wireless network. Location data for one or more devices is received, for each device the location data includes a unique identifier. Whether the devices belong to the group of devices is determined based on the unique identifier. The location data of devices determined to belong to the group of devices are stored and used in the mobility analysis and the results distributed accordingly. A relevancy analysis may be performed on the stored location data of devices determined to belong to the group of devices in which device information is generated that is associated with devices not belonging to the group of devices. The device information is fed back to determine whether the devices belong to the group of devices based on the unique identifier.
Method and node for positioning in combined cell // US9445390
A method in a first radio base station of a wireless communication system, for transmitting a reference signal for positioning in a cell. The cell is hosted by the first radio base station and served by a plurality of transmission points. Each transmission point is associated with a value of a first attribute indicating whether transmission of the reference signal for positioning is enabled for the associated transmission point. The method comprises selecting at least one transmission point among the plurality of transmission points based on the values of the first attribute, and transmitting the reference signal for positioning in the cell from the selected at least one transmission point only.
Method and apparatus for building Wi-Fi radio map // US9445387
The present invention is related to method and device for building Wi-Fi radio map. Especially, it is related to device and method for building Wi-Fi radio map that is used to position locating service that utilizes Wi-Fi fingerprints that many, unspecified mobile terminals collect and provide. Specifically, the present invention provides, as methods for estimating position data for AP using Wi-Fi fingerprints collected by mobile terminals , 1) method for estimating position data for AP by linking Wi-Fi fingerprints and time data for collecting Wi-Fi signal, or 2) method for estimating position data for AP through user address data comparison between Wi-Fi fingerprints without linking signal collection time data to Wi-Fi fingerprints. Accordingly, it has effects of epoch-making economic feasibility compared to prior art that requires huge cost in collecting Wi-Fi fingerprint like war driving.
Establishing a power charging association on a powerline network // US9445361
A first client may establish a power charging association with one of a plurality of service agents over a network. The first client transmits a first signal via a first attachment point of a powerline network, the first signal associated with requesting the power charging association. The first client broadcasts a sounding message via the first attachment point after transmitting the first signal, wherein the sounding message is receivable by one or more service agents including at least a first service agent of the powerline network. The first service agent received the sounding message with a lowest attenuation of the one or more service agents that received the sounding message. The power charging association is established between the first client and the first service agent.
Presence platform for passive radio access network-to-radio access network device transition // US9445353
Profile-based passive network switching of wireless mobile devices comprises receiving at a wireless access point a device specific identifier beacon transmitted from a mobile device and extracting a device specific identifier from the beacon. The access point then transmits the device specific identifier and access point provider information to a networked server configured with presence network switching software for determining network switching requirements based on the transmitted device specific identifier. The access point then receives mobile device network switching data from the server for processing. The access point then transmits local wireless network authentication and connection information from the access point to the mobile device to facilitate activating a wireless network connection between the mobile device and the access point at which point the access point starts processing wireless communication from the mobile device over the local wireless network.
Ensuring positioning quality-of-service for LTE positioning // US9445340
Methods in a radio network node for obtaining positioning QoS information and using the positioning QoS information, as well as corresponding radio network node apparatus, are disclosed. An example method begins with the receiving of positioning QoS information for a target wireless device, such as a user equipment, UE. In some cases, for example, the positioning QoS information is received from a positioning node, using the LPPa protocol. The positioning QoS information may include, for example, a desired horizontal accuracy, a desired vertical accuracy, and a target response time. The received positioning QoS information is used to configure uplink transmissions to be transmitted by the target wireless device, or to configure a receiver for reception of one or more uplink transmissions from the target wireless device, or both.
Method for verifying and/or preprocessing data packets and control device set up to carry out the method // US9445308
A method for verifying and/or preprocessing data packets received by a receiving device in a vehicle during wireless vehicle-to-environment communication includes: determining, in the receiving device, relevance of the received data packets; prioritizing, and verification and/or preprocessing according to their relevance, the data packets for the determination of the relevance depending on the distance between a transmitting device and the receiving device; and checking the signature of the transmitting device of the data packets and/or preprocessing the data packets in an order predefined by the prioritizing. The determination of the relevance also depends on the type of data packet and/or the type or position of the transmitting device, taking into account the position of the transmitting device based on another safety-relevant object.
Multiple band portable spectrum analyzer // US9445293
A device for detecting RF power information, for use as a stand alone purpose built device, or connectable to an external computing instrument such as a laptop, PDA, or cell phone, or other similarly capable technology. The device scans two or more bands in the wireless frequency and provides output to the user with wireless information about multiple bands of information.
Systems and methods for determining and specifying spectrum availability for a predetermined travel route // US9445277
A spectrum management server generates and an electronic device uses a channel map solution for a predetermined travel route of the electronic device. The channel map solution includes at least one available channel for each of the plural geographic areas through which the planned travel route passes. At least two adjacent ones of the geographic areas have different channel availability.
Authentication in heterogeneous IP networks // US9445272
The invention proposes a system for authenticating and authorizing network services comprising: a mobile device being adapted to, upon receipt of an information message indicating at least one network access type, determine the network access type, to create a start message containing at least a user identity, and to encapsulate the start message in an authentication message compatible with the access network identified in the information message, and an access controller for reading the encapsulated message from the mobile and forwarding the encapsulated message to an authentication server identified in the encapsulated message. The invention also proposes a corresponding method for authenticating and authorizing network services, and an access control device, a subscriber device and a router device.
Recording medium, mobile electronic device, and operation control method // US9445268
A processor of a mobile terminal refers to an app table that stores a reference flag on a per-app basis, the flag indicating whether the operation-unlock app screen is to be displayed in the foreground window of a display. Furthermore, the processor acquires from the app table the flag that corresponds to the current app in response to a lighting-off command. Moreover, the processor determines whether the operation-unlock app screen is to be displayed in the foreground window instead of the current app screen on the basis of the acquired flag. On the basis of the result of the determination, the processor controls the changing of a screen in the foreground window.
Personal area network apparatus // US9445260
A portable endpoint device comprises a first virtual device and a second virtual device integrated in a same single unit and configured such that the first virtual device and the second virtual device are configured to allow communication therewith as virtually different physical devices despite being integrated in the same single unit. In operation, the device is configured to receive a first signal from another endpoint device to indicate the availability of the another endpoint device for attachment; send, to the another endpoint device a second signal utilizing first scheduling-related information, the second signal including a first one of a plurality of identifiers for unique identification in association with the portable endpoint device; receive, from the another endpoint device a third signal that is sent in response to the second signal; and receive, from the another endpoint device data utilizing a second one of the identifiers for identification in association with the portable endpoint device.
Method to provide ad hoc and password protected digital and voice networks // US9445251
A method and system includes the ability for individuals to set up an ad hoc digital and voice network easily and rapidly to allow users to coordinate their activities by eliminating the need for pre-entry of data into a web or identifying others by name, phone numbers or email. This method is especially useful for police, fire fighters, military, first responders or other emergency situations for coordinating different organizations at the scene of a disaster to elevate conventional communication problems either up and down the chain of command or cross communication between different emergency units. The method and system provides that the users are only required to enter a specific Server IP address and an ad hoc event name, a password and perhaps the name of the particular unit.
Disaster response system // US9445249
A disaster response system receives location data and status data from participating devices in an area affected by a disaster. The disaster response system provides data to client devices outside the affected area. The data indicate statuses of people within the affected area. Disaster response system also instructs routers to perform actions to adjust bandwidth available for a particular use during and after the disaster.
Radio-agnostic message translation service // US9445248
In various aspects, the disclosure provides a hub that is adapted for radio-agnostic message translation. The hub may be configured to establish a connection with a target device using a first network access technology, receive a first message from a first client device through a connection established on a second network access technology, translate the first message from a first transmission format to obtain a second message in a second transmission format, and transmit the second message to the target device and using the first network access technology. The first network technology may employ a first wireless technology having a range that is less than 100 meters. The first client device may be separated from the target device by a distance that is greater than the range of the first wireless technology.
Location tracking for mobile device using Wi-Fi access point cluster // US9445241
A method includes determining a radio frequency fingerprint mapping to an indoor floor plan for an indoor area. The method includes clustering Wi-Fi access point devices deployed in the indoor area into groups of Wi-Fi access point devices based on RF fingerprint data received by at least one reference point device. The method includes selecting a Wi-Fi access point device from each group of Wi-Fi access point devices and determining a RF fingerprint based on the selected Wi-Fi access point devices. The method includes receiving a request for a location associated with a mobile device. The request includes a sampled RF fingerprint associated with the mobile device. The method also includes comparing the RF fingerprints based on the selected Wi-Fi access point devices with the sampled RF fingerprint associated with the mobile device to determine a location of the mobile device within the indoor area.
System and method for confirming data processing system target(s) // US9445238
Provided is a system and method for enabling a user, of a wireless radio equipped mobile data processing system, to: aim the mobile data processing system, perform a shoot action, and subsequently confirm the target shot. Aim information is transmitted outbound by radio frequency from the mobile data processing system to a remote data processing system for determining the target being successfully shot. Information for confirmation is transmitted inbound by radio frequency to the mobile data processing system , for example to complete the shoot action. Aim information may include location information, directional and posture information, distance information, target size, and/or other shooting data to further qualify the shoot action.
Recording and processing safety relevant observations for facilities // US9445236
A mobile device has a location sensor and a data sensor for collecting data that relates to technical equipment. An area component determines that the mobile device is located in an event area with the potential of occurrence of events in categories. A detection component processes data from the data sensor that is indicative of events. The detection component is active if the mobile device is located in the event area. A recorder component records data from the data sensor in combination with the geographic location of the mobile device. The recorder component is active if a particular event that falls into at least one of the categories has been detected.
Wireless-based identification of person tracks // US9445234
In an implementation, techniques are provided for tracking the location of a device that transmits wireless signal. The wireless signal can be received at a set of receivers. Distances to the device are determined based on signal strength. From the distances, boundaries encompassing possible locations of the device are defined. Boundary intersections are analyzed in order to determine the location of the device.
Observation platform for using structured communications // US9445232
Systems and methods for using structured communications in an observation platform are disclosed. A signal is received from a first communication device at a second communication device associated with a computer system wherein a first characteristic of the signal corresponds to an audible source and a second characteristic of the signal corresponds to information indicative of a geographic position of the first communication device, and wherein the second communication device is associated with a radio range. A first user associated with the first communication device is recognized at the computer system. Context information is derived for the signal at the computer system. The signal is relayed to a destination derived from the context information via a network, wherein the destination is outside of the radio range of the second communication device.
Mobile device monitor system // US9445228
A system detects absence of a mobile device. The system includes a mobile device detection system that detects mobile devices in communication range of the mobile device detection system. Expected device logic compares mobile devices detected in communication range of the mobile device detection system with a list of mobile devices expected to be presence during a check of mobile devices in communication range of the mobile device detection system. A notification system notifies a user when at least one mobile device in list of mobile devices expected to be presence during a check of mobile devices in communication range of the mobile device detection system is not in communication range of the mobile device detection system.
Passive positioning utilizing round trip time information // US9445227
Techniques for passive positioning of a client station are disclosed. In an example a passive positioning scheme may include detecting an incoming message from an access point, determining a Round Trip Time value associated with the access point, generating an acknowledgment message, calculating a time of departure for the acknowledgment message based on the RTT value, and sending the acknowledgment message at the time of departure.
Method for improving location accuracy in multi-channel wireless networks // US9445226
The present disclosure discloses a method and network device for improving location accuracy in multi-channel wireless networks. Specifically, to coordinate with other Access Points and improve location accuracy of client devices, each access point can obtain a schedule of another neighboring AP; switch to the operating channel of the neighboring AP at a scheduled time for communication exchanges between the neighboring AP and the client device, listen to the communication exchanges between the neighboring AP and the client device; collecting signal samples, e.g., signal strength associated with messages originated from the client device; and send the report to the location engine to allow the location engine collect more signal samples associated with the client device, thereby more accurately determine the location of the client device; etc.
GPS based spectator and participant sport system and method // US9445225
A spectator sport system and method that displays different views of a sporting event and, in particular, uses a position selected by the spectator to assist in displaying a view from the selected position. The spectator, using an internet device, can zoom, pan, tilt and change the view, as well as change the view to another position, such as a finish line, goal, or a participant position . The starting position can be specified, as well as the target position or orientation from the starting position. Vital information on the sporting event or a participant can be appended to the view. In some forms, augmented reality or any geographic referenced datasets can be used and combined, such as 3D imagery or 3D renderings, to enhance the experience.
Selective user notification for link termination events in wireless personal area network // US9445224
A user device includes a wireless interface to establish a wireless personal area network link with another user device. The user device further includes a notification controller to, in response to a link termination event for the WPAN link, selectively trigger a user alert based on at least one of: an indication of whether the user device is in proximity to a user; and an indication of whether the other user device is identified as a user-portable device. The notification controller may selectively trigger a user alert further based on an indication of whether the first device is connected to a specified wireless local area network .
Using Bluetooth low energy // US9445222
A method comprises receiving a signal indicative of receipt of a first Bluetooth low energy message , the first Bluetooth low energy message including at least one transmission time adjustment parameter, determining an adjusted transmission time for a subsequent Bluetooth low energy message based on the at least one transmission time adjustment parameter, and causing transmission of the subsequent Bluetooth low energy message at the adjusted transmission time.
Systems and methods for enabling additional devices to check in to bluetooth low energy (BLE) beacons // US9445220
Systems and methods are provided for checking many users in to a location using a Bluetooth® low energy beacon. The provided systems and methods may allow a BLE beacon to facilitate a check in with a remote server that processes check ins and then disconnect from the device used to check in. The device may be assigned a unique identifier that may be broadcast from the device during the check in so that the BLE beacon can quickly scan for the identifier and connect with the device based on the identifier to provide content and other information to the device.
Actuator based on sensor actuator network and method of actuating the same // US9445216
In a wireless sensor actuator network system, actuators to be actuated to correspond to a plurality of sensors are selected using an A-S matrix that represents relationship strength between a plurality of actuators and the plurality of sensors based on sensing data of the plurality of sensors, and only the selected actuators determine actuation values based on values of the A-S matrix.
Waveform display control of visual characteristics // US9445210
Waveform display control techniques of visual characteristics are described. In one or more examples, a method is described of increasing user efficiency in identifying particular sounds in a waveform display of sound data without listening to the sound data. Sound data received by a computing device is partitioned to form a plurality of sound data time intervals. A signature is computed for each of the plurality of sound data time intervals by the computing device based on features extracted from respective said sound data time intervals. The computed signatures are mapped by the computing device to one or more colors. Output of a waveform in a user interface is controlled by the computing device, in which the waveform represents the sound data and each of the sound data time intervals in the waveform have the mapped one or more colors.
Mechanism and apparatus for seamless voice wake and speaker verification // US9445209
Technologies are described herein that allow a user to wake up a computing device operating in a low-power state and for the user to be verified by speaking a single wake phrase. Wake phrase recognition is performed by a low-power engine. In some embodiments, the low-power engine may also perform speaker verification. In other embodiments, the mobile device wakes up after a wake phrase is recognized and a component other than the low-power engine performs speaker verification on a portion of the audio input comprising the wake phrase. More than one wake phrases may be associated with a particular user, and separate users may be associated with different wake phrases. Different wake phrases may cause the device transition from a low-power state to various active states.
Method and apparatus for determining dominant sound source directions in a higher order Ambisonics representation of a sound field // US9445199
In Higher Order Ambisonics, a problem is the tracking of time variant directions of dominant sound sources. The following processing is carried out: from a current time frame of HOA coefficients, estimating a directional power distribution of dominant sound sources, from said directional power distribution and from an a-priori probability function for dominant sound source directions, computing an a-posteriori probability function for said dominant sound source directions, depending on said a-posteriori probability function and on dominant sound source directions for the previous time frame, searching and assigning dominant sound source directions for said current time frame of said HOA coefficients.
Directivity control method and device // US9445195
Directivity control method and device which can emphasize or suppress sound deriving from an arbitrary direction with a little computation using two microphones closely disposed are provided. An interchange circuit 2 alternately interchanges a pair of input signals InL, InR for each one sample to generate a pair of interchanged signals InA, InB. A coefficient updating circuit 3 multiplies the one InB of the interchanged signals by a coefficient m to generate an error signal between the interchanged signals InA, InB. A recurrence formula of the coefficient m containing the error signal is calculated to update the coefficient m for each one sample. Subsequently, the pair of input signals InL, InR are multiplied by the sequentially updated coefficient m, and output.
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