摘要:
A resonant bending wave loudspeaker comprising a panel-form acoustic radiator in the form of a beam and a vibration transducer mounted to the beam at a position to apply bending wave energy thereto to enable low frequency modes to be excited in the radiator both lengthwise of the radiator and crosswise of the radiator, and means mounting the radiator to permit the excitation of low frequency lengthwise and crosswise modes therein. From another aspect, the invention is a method of designing a resonant bending wave loudspeaker of the kind described above, comprising determining a position for locating the vibration transducer on the beam by deriving a model of the resonant modes in the beam from physical parameters of the beam, using the model to calculate the mechanical input power from the transducer to the beam as a function of frequency, calculating a measure of smoothness of the mechanical input power and selecting the position of the vibration transducer which has a desired value of the measure of smoothness.
摘要:
Systems for storing beverages are disclosed, which include a container for storing, transporting and dispensing a beverage, e.g. beer. In some implementations the container includes a pressure-tight lid closure system including wire bails.
摘要:
What is disclosed is a tri-hybrid automotive power plant. The power plant is an alternative to standard internal combustion engines and available hybrid or electric vehicle propulsion systems. The power plant includes a hydrogen fuel cell stack, a lithium battery pack and a flexible fuel internal combustion engine. The various components of the power plant are optimized through various disclosed control schemes.
摘要:
Systems for storing beverages are disclosed, which include a container for storing, transporting and dispensing a beverage, e.g. beer. In some implementations the container includes a pressure-tight lid closure system including wire bails.
摘要:
Systems and methods for recording of channels are provided. In a particular method, a first window of the plurality of windows is designated to display a first program of a first channel and a second window of the plurality of windows is designated to display a second program of a second channel. The first channel and the second channel are each included in a set of channels. The method also includes automatically recording the first program associated with the first channel while the first program is in progress and automatically recording the second program associated with the second channel while the second program is in progress. The method further includes sending a start of program option to a display device. In response to a selection of the start of program option, a recorded displayed program in progress is automatically replayed from a beginning of the displayed program at the display device.
摘要:
Systems and methods for recording of channels are provided. In a particular method, a first window of the plurality of windows is designated to display a first program of a first channel and a second window of the plurality of windows is designated to display a second program of a second channel. The first channel and the second channel are each included in a set of channels. The method also includes automatically recording the first program associated with the first channel while the first program is in progress and automatically recording the second program associated with the second channel while the second program is in progress. The method further includes sending a start of program option to a display device. In response to a selection of the start of program option, a recorded displayed program in progress is automatically replayed from a beginning of the displayed program at the display device.
摘要:
A system, method and computer program for managing resources within an integrated development environment for multiple users. The resources include both content resources and people resources. The method comprises: managing a plurality of nodes representing resources, said nodes including content nodes and person nodes, wherein the node contains a resource reference for referencing the resource; managing one or more links representing one or more relationships between the resources, said links including links between content nodes, between person nodes and between content and person nodes, each link comprising node references to identify the nodes in the relationships and an importance value to identify the importance of the relationship; providing an interface for selecting one of the plurality of content nodes or person nodes; adapting, in response to the user selected node, one or more importance values of certain links.
摘要:
A system, method and computer program for managing resources within an integrated development environment for multiple users. The resources include both content resources and people resources. The method comprises: managing a plurality of nodes representing resources, said nodes including content nodes and person nodes, wherein the node contains a resource reference for referencing the resource; managing one or more links representing one or more relationships between the resources, said links including links between content nodes, between person nodes and between content and person nodes, each link comprising node references to identify the nodes in the relationships and an importance value to identify the importance of the relationship; providing an interface for selecting one of the plurality of content nodes or person nodes; estimating, in response to a selected node, a node having a likelihood of subsequent selection based on the importance value of its link to the selected node; and providing an interface for selecting said estimated node.
摘要:
A touch sensitive apparatus includes a touch plate to which several pickup sensors and at least one excitation transducer are coupled. Each of the sensors is configured to sense bending waves in the touch plate, and the excitation transducer is configured to induce bending waves in the touch plate. The apparatus may further include active buffer circuits, wherein each of the active buffer circuits is coupled to one of the sensors. A controller is coupled to the sensors via the active buffer circuits and to the excitation transducer via a non-actively buffered connection. The controller is configured to compute a location of a contact on the touch plate responsive to sense signals received from the sensors. The apparatus may be used to perform a variety of calibrations, including touch plate and sensor calibrations. Changes in touch sensing apparatus calibration and performance may be detected and tracked over time.
摘要:
A touch sensing device includes a plurality of sensors and an emitting transducer coupled to a touch panel. The transducer induces bending waves in the touch panel. The sensors sense bending waves in the touch panel and generate a bending wave signal responsive to the sensed bending waves. A controller identifies an untouched condition signal responsive to the induced bending waves. The controller compares the untouched condition signal to the bending wave signal, and detects a touch on the touch panel based on the comparison.