Abstract:
A transducer device includes a coupling cavity, a first resonant element and a second resonant element. The first resonant element is coupled to the coupling cavity and configured to send or receive acoustic signals. The second resonant element is coupled to the coupling cavity and configured to modify a frequency response of the first resonant element via the coupling cavity.
Abstract:
An escape ladder assembly (20) for mounting adjacent a window opening (4) in a building is provided, the window opening comprising a substantially horizontal window sill (8), the escape ladder assembly comprising a housing (22) for mounting in the wall adjacent the window opening, the housing having an opening in the window sill; a foldable ladder (32); at least one wall engaging fastening means (30) for connecting an end of the foldable ladder to the wall; wherein the foldable ladder is removable from within the housing through the opening in the window sill.
Abstract:
The invention relates to a drive circuit for an injector arrangement having a fuel injector, and a method of detecting faults in the drive circuit. The drive circuit includes a diagnostic tool that senses a measured voltage between the injector and a known voltage level. The measured voltage is biased with respect to the known voltage to a predicted voltage unless the drive circuit has a fault. A fault signal is provided on sensing of a measured voltage that differs from the predicted voltage. The drive circuit may additionally, or alternatively, include a diagnostic tool. The diagnostic tool senses a detected current to provide a fault signal upon detection of the fault when the detected current is at variance from a threshold current.
Abstract:
The invention is directed to techniques for providing an audibly controlled interface for a user of a limited audio-based communication device, for example, a telephony device such as a desktop telephone or a cellular telephone. The communication device has an interface connection with a proxy browser. The user initially accesses the device, such as by picking up the handset, and the proxy browser provides a communication path over a network to a call services application on an application server. The application server provides a response to the initial access signal. The proxy browser receives the response from the application server and plays back an audio output based on the response to the communication device for the user. The user can then respond with a request to the call services application to place an outbound call or to initiate another service provided by the application server via the proxy browser.
Abstract:
Ultrasound information for B-mode and CW Doppler mode use the same digital beamformer. Due to sigma-delta conversion or over sampling, sufficient dynamic range is provided for the desired bandwidth. By mixing the input ultrasound information to base band before conversion, additional dynamic range may be provided. The electrical impedance may be better matched to elements by connecting a different number of sigma-delta converters to an element. Elements with lower impedance may be connected to a plurality of sigma-delta converters. To increase the aperture size for elements with a higher impedance, the same sigma-delta converters may be used as separate receive beamformer channels without the summation.
Abstract:
The invention relates to a drive circuit for an injector arrangement comprising a fuel injector, and method of detecting faults in the drive circuit. The drive circuit comprises diagnostic means (RH, RL) that is operable to sense a measured voltage (VBIAS) between the injector and a known voltage level (VBAT, VGND). The measured voltage (VBIAS) is biased with respect to the known voltage (VBAT, VGND) to a predicted voltage (VPinjN, VBcalc) unless the drive circuit has a fault. A fault signal is provided on sensing of a measured voltage (VBIAS) that differs from the predicted voltage (VPinjN, VBcalc). The drive circuit may additionally, or alternatively, comprise diagnostic means (RF). The diagnostic means (RF) is operable to sense a detected current (Idect) and to provide a fault signal on detection of a fault, when the detected current (Idect) is at variance from a threshold current (Itrip).
Abstract translation:本发明涉及一种用于喷射装置的驱动电路,包括燃料喷射器,以及检测驱动电路中的故障的方法。 驱动电路包括诊断装置(R H H,R L L),其可操作以感测注射器和/或控制器之间的测量电压(V BIAS) 一个已知的电压电平(V BAT),V GND GND。 所测量的电压(V bias)相对于已知电压(V BAT BAT,V SUB GND)偏置到预测电压(V < 除非驱动电路有故障,否则可能导致电压过低。 在检测到与预测电压(V SUB Pin N N,V B B C C C C)不同的测量电压(V bias)时提供故障信号。 驱动电路可以另外或替代地包括诊断装置(RF)。 诊断装置(RF)可用于感测检测到的电流(I SUB),并且当检测到的电流(I &lt; SUB&gt;)与阈值电流(I&gt;跳闸 SUB>)不同。
Abstract:
A swing valve has a pivoting primary valve member for closing a primary valve passage defined in a valve housing, and a pivoting secondary valve member for closing a secondary valve passage defined through the primary valve member. Partial opening of the valve is achieved by pivoting the secondary valve member open while the primary valve member remains closed. Full opening of the valve is achieved by rotating the primary valve member open.
Abstract:
There is disclosed an antenna device including a dielectric substrate having a first, upper surface and a second, lower surface, a conductive groundplane on the second surface or located between the first and second surfaces. At least two conductive feedlines are formed on the first surface and extend from feed points to predetermined radiating points at edge or corner parts of the first surface. The groundplane does not extend under the radiating points. The groundplane is configured as to extend between the radiating points and the feedlines are widened at the radiating points and/or are provided with discrete dielectric elements at the radiating points. The antenna device provides broadband performance and good diversity within a small space.
Abstract:
In a multinode data processing system in which the nodes communicate with one another via communication adapters over a network or switch, the adapters are provided with a dual register mechanism for tracking microcode task status. Upon the issuance of a disruptive command that requires attention from one of the nodes, the task status maintained in one register is copied to the snapshot register. As tasks within the adapter are completed, both registers are updated, thus providing a mechanism for the nodes to determine that all tasks active at the time of the disruptive command have completed. This means that the nodes now have a mechanism for determining, as soon as possible, that all tasks that are active when a disruptive command occurs have completed, thus allowing the data processing node to perform such operations as releasing system memory that is associated with the disruptive command, thus eliminating temporal overhead that can affect performance.
Abstract:
In remote direct memory access transfers in a multinode data processing system in which the nodes communicate with one another through communication adapters coupled to a switch or network, failures in the nodes or in the communication adapters can produce the phenomenon known as trickle traffic, which is data that has been received from the switch or from the network that is stale but which may have all the signatures of a valid packet data. The present invention addresses the trickle traffic problem in two situations: node failure and adapter failure. In the node failure situation randomly generated keys are used to reestablish connections to the adapter while providing a mechanism for the recognition of stale packets. In the adapter failure situation, a round robin context allocation approach is used with adapter state contexts being provided with state information which helps to identify stale packets. In another approach to handling the adapter failure situation counts are assigned which provide an adapter failure number to the node which will not match a corresponding number in a context field in the adapter, thus enabling the identification of stale packets.