Abstract: A method and apparatus for operating an electric motor is presented. A transmit magnetic field is received at a group of receive coils having a group of axes oriented substantially parallel to magnetic field lines from a transmit coil and having a group of resonant frequencies. A resonant frequency in the group of resonant frequencies is different from other receive coils in the group of receive coils. A receive magnetic field is generated at a receive coil in the group of receive coils having the resonant frequency when the transmit magnetic field has a selected frequency matching the resonant frequency. The receive magnetic field attracts a rotor in the electric motor.

Abstract: The present invention relates to the field of architecture of Internet of Things, specifically to a semantics-based architectural model of Internet of Things. The present invention puts forward the architecture of the Internet of Things based on the study of semantic Web, sensor network, sensor Web, wherein the architecture is divided into 7 layers: physical layer, perception layer, gateway layer, data layer, semantic layer, service layer and application layer. By means of semantic processing of sensor data and building of sensor ontology, the architecture is capable of realizing automatic discovery of heterogeneous resources, enhancing the expression ability of data, achieving effective sharing, reuse, integration, and access to data, improveing interoperability of resources and accomplishing intellectualized service.

Abstract: A method for controlling an electric motor. A desired speed is identified for the electric motor during operation of the electric motor. A voltage is identified to cause the electric motor to turn at the desired speed. The voltage is applied to the electric motor and actively controlled during operation of the electric motor.

Abstract: A method and apparatus for operating an electric motor unit. Information is received from the electric motor unit over a wireless communications link between the controller and the electric motor unit. Commands are identified for the electric motor unit from the information received. The commands identified are sent to the electric motor unit over the wireless communications link.

Abstract: The disclosure herein provides for interpreting and facilitating user input to virtual knobs on a touchscreen interface. Aspects of the disclosure provide for the interpretation of a contact with a virtual knob of a device represented on a touchscreen interface. In response to the contact, a state change associated with the virtual knob may be made, or an annular input icon displayed around the virtual knob. The annular input icon may guide an adjustment of the virtual knob.

Abstract: A method and apparatus for controlling an electric motor. Power is transmitted to windings of the electric motor by wireless magnetic coupling between transmission coils and the windings.

Abstract: The disclosure herein provides for interpreting and facilitating user input to virtual knobs on a touchscreen interface. Aspects of the disclosure provide for the interpretation of a contact with a virtual knob of a device represented on a touchscreen interface. In response to the contact, a state change associated with the virtual knob may be made, or an annular input icon displayed around the virtual knob. The annular input icon may guide an adjustment of the virtual knob.

Abstract: A method and apparatus for controlling a group of electric motors. A controller is configured to identify a group of switching frequencies for a desired signature for the group of electric motors. The controller is further configured to control switching of a current supplied to the group of electric motors with the group of switching frequencies for the desired signature identified.

Abstract: A method for controlling an electric motor. A desired speed is identified for the electric motor during operation of the electric motor. A voltage is identified to cause the electric motor to turn at the desired speed. The voltage is applied to the electric motor and actively controlled during operation of the electric motor.

Abstract: A method and apparatus for operating an electric motor unit. Information is received from the electric motor unit over a wireless communications link between the controller and the electric motor unit. Commands are identified for the electric motor unit from the information received. The commands identified are sent to the electric motor unit over the wireless communications link.

Abstract: A method for two-stage packet aggregation facing wireless sensor network with hybrid topology structure including: building various nodes in a wireless sensor network into a hybrid topology structure which combines the star topology and mesh topology; establishing a two-stage packet aggregation architecture for periodic sensor data based on the above described topology structure; determining the packet format, aggregating and disaggregating the two-stage packets based on the topology structure and aggregation architecture; according to the application, the aggregated nodes in the network configuring router nodes and aggregation attributes of the nodes; according to the aggregation attribute, the sensor nodes performing the first-stage aggregation and generates an first-stage aggregation packet; according to the aggregation attributes, the router node implementing second-stage aggregation and generating a second-stage aggregation packet; the aggregation nodes taking charge of disaggregating the aggregated pack

Abstract: A method of achieving wireless sensor network (WSN) communication in a mesh and star topology network (MSTN), including: a) connecting a plurality of nodes in a WSN to form a mesh and star hybrid topology structure; b) based on the topology structure, defining a superframe structure based on IEEE 802.15.4-2006; c) based on the topology structure and superframe structure, defining methods for long period data processing, connectivity assessment, medium access control, channel measurement, frequency hopping, beacon frame formation, and two-stage resource allocation; d) based on the topology structure, superframe structure, and methods, defining a method for network establishment; and e) based on the network establishment method, defining a method for MSTN communications. The method features real-time communication, high reliability, and low energy consumption.

Abstract: The disclosure herein provides for interpreting and facilitating user input to virtual knobs on a touchscreen interface. Aspects of the disclosure provide for the interpretation of a contact with a virtual knob of a device represented on a touchscreen interface. In response to the contact, a state change associated with the virtual knob may be made, or an annular input icon displayed around the virtual knob. The annular input icon may guide an adjustment of the virtual knob.

Abstract: A method for two-stage packet aggregation facing wireless sensor network with hybrid topology structure including: building various nodes in a wireless sensor network into a hybrid topology structure which combines the star topology and mesh topology; establishing a two-stage packet aggregation architecture for periodic sensor data based on the above described topology structure; determining the packet format, aggregating and disaggregating the two-stage packets based on the topology structure and aggregation architecture; according to the application, the aggregated nodes in the network configuring router nodes and aggregation attributes of the nodes; according to the aggregation attribute, the sensor nodes performing the first-stage aggregation and generates an first-stage aggregation packet; according to the aggregation attributes, the router node implementing second-stage aggregation and generating a second-stage aggregation packet; the aggregation nodes taking charge of disaggregating the aggregated pack

Abstract: A method of two-stage adaptive frequency hopping for a clustered wireless sensor network, including: a) building a clustered wireless sensor network; b) defining a superframe structure based on IEEE 802.15.4 according to a topology of the clustered wireless sensor network; c) extending a beacon frame payload based on a beacon frame format of an IEEE 802.15.4 Media Access Control (MAC) layer; and d) performing a two-stage adaptive frequency hopping mechanism on nodes based on the above superframe structure and the extended beacon frame of the IEEE 802.15.4 MAC layer.

Abstract: An electronic device includes a housing, a circuit board disposed in the housing, a female connector received in the housing, and a switch. The female connector is configured to receive and electrically connect a male connector, including a through hole, the through hole having a first opening exposed outside the housing for insertion of the male connector into the through hole therethrough and an opposing second opening located within the housing, the second opening aligned with the first opening. The switch is electrically connected to the circuit board adjacent to the second opening. The switch is able to be actuated by an elongated object passing through the second opening, and the electronic device is rebooted when the switch is actuated.

Abstract: A weld nut includes a main body and a flange. The flange is extended outwardly from the main body and surrounding the main body, and comprises teeth disposed evenly on the periphery thereof. Mis-positioning of the weld nut is avoided when soldering the weld nut to a printed circuit board.

Abstract: A method of achieving wireless sensor network (WSN) communication in a mesh and star topology network (MSTN), including: a) connecting a plurality of nodes in a WSN to form a mesh and star hybrid topology structure; b) based on the topology structure, defining a superframe structure based on IEEE 802.15.4-2006; c) based on the topology structure and superframe structure, defining methods for long period data processing, connectivity assessment, medium access control, channel measurement, frequency hopping, beacon frame formation, and two-stage resource allocation; d) based on the topology structure, superframe structure, and methods, defining a method for network establishment; and e) based on the network establishment method, defining a method for MSTN communications. The method features real-time communication, high reliability, and low energy consumption.

Abstract: A weld nut includes a main body and a flange. The flange is extended outwardly from the main body and surrounding the main body, and comprises teeth disposed evenly on the periphery thereof. Mis-positioning of the weld nut is avoided when soldering the weld nut to a printed circuit board.

Abstract: A simulation system for testing performances of television (TV) tuners (50) attached to a plurality of computers (5) is disclosed. The system includes: a plurality of players (1), each for transmitting an original signal comprising audio and video data formatted in a corresponding data format; a plurality of frequency adjusters (2), each for receiving a corresponding original signal from one of the players and changing the original signal into an adjusted signal having a fixed frequency; at least one frequency mixer (3) for combining all the adjusted signals into an aggregated signal; at least one hub (4) for distributing the aggregated signal to each of the computers via a coupled TV tuner respectively. Each of the computers is used for decoding various TV programs at different signal frequencies in an emulated TV channel, and generating a test report on the performance of each TV tuner. A related method is also disclosed.