摘要:
An apparatus comprises a plurality of ports wherein each port is adapted to couple to a device. At least one port connects by way of first and second unidirectional, point-to-point communication links with a device. The first unidirectional, point-to-point communication link transfers data from the device to the central logic unit and the second unidirectional, point-to-point communication link transfers data from the central logic unit to the device.
摘要:
A retention clip assembly is for attachment to a stud. The assembly includes a base plate and a cover plate. The base plate includes a base rim and a locking finger extending from the base rim. The cover plate includes a cover rim and a flange. The cover rim defines a lock opening configured for receiving the locking finger therein to retain the cover plate to the base plate. The flange extends inwardly from the cover rim at an angle which is acute such that the flange overlays the cover opening and is configured for engaging the external teeth on the stud. The cover plate attached to the base plate with a sheet of material therebetween. The cover plate and base plate are positioned such that the flange engages the external teeth of the stud to prevent removal of the retention clip assembly from the stud.
摘要:
Transponders are disclosed that are configurable to operate in an HDX mode and/or an FDX-B mode and that use a switchable load impedance across the transponders' resonant antenna circuit to induce amplitude and/or frequency modulation. An RF level detection circuit determines when the instantaneous activation signal strength is sufficient to support monoplex, multiplex, and diplex operation. A non-volatile memory stores identification data coded in HDX and FDX-B formats. One embodiment of the invention includes an inductive antenna including two terminals connected to tag circuitry, where the inductive antenna forms a resonant antenna circuit tuned to resonate at the frequency of the activation signal. In addition, the tag circuitry includes a non-volatile memory, the tag circuitry and the resonant antenna circuitry are configurable as an oscillator, the tag circuitry is configured to be powered by electric current induced in the resonant antenna circuit by the activation signal, the tag circuitry includes at least one switchable load impedance connected across the antenna resonant circuit, the tag circuitry is configurable to amplitude modulate the activation signal appearing at the resonant antenna circuit terminals using a switchable load impedance, and the tag circuitry is configurable to frequency shift key modulate the oscillator signal appearing at the resonant antenna circuit terminals using a switchable load impedance.
摘要:
The invention generally relates to an integrated head up displaying (HUD) device including a housing that houses an active-matrix image projecting system and its accompanying electronics, and an optical combiner (for providing a see-through image thereon) connected to the housing via a retractable arm attached at one end to the main body and holds the HUD optical panel at its other end. In particular, the telescopically retractable arm allows the assembly to extend or retract for a desirable combiner height. Further, the LED backlighting array is placed within a reflective light chamber which is lined with a safe, light-weight, low cost, specular, reflective sheet for high reflectivity. The non-conductive, reflective sheet also covers the LED printed circuit board.
摘要:
In a system comprising multiple electronic (radio frequency) identification interrogator devices, which are used to activate and to receive identification code information from one or more passive transponder devices, activation signals are synchronized and adaptively timed by a master interrogator. The master interrogator generates a synchronization signal containing frequency, phase, and cadence information, and uses this synchronization signal to generate its own activation signal. The master interrogator also conveys this synchronization signal to slave interrogators, where it is used to generate each slave's activation signal. Each slave interrogator conveys to the master interrogator its transponder detection status information, and the master interrogator modifies the synchronization signal's cadence in compliance with timing requirements of ISO Standard 11785. A universal interrogator architecture is employed, whereby each interrogator is configured by software to be either the master interrogator or a slave interrogator. Fail-safe operation of the system is possible by virtue of a slave interrogator's ability to reconfigure itself as the master interrogator in the event of loss of the primary master interrogator's synchronization signal.
摘要:
A seating unit includes a tubular support extending upwardly from a chair frame, a retainer telescopingly engaging an upright open end of the support, and an armrest mounted on the retainer. The retainer is keyed at both ends to prevent undesired rotation of the armrest. Accessories are mounted to the retainer, and are positionable at use and non-use positions relative to a seated user. The accessories include a cup holder, a container, a hook for hanging items under the cup holder or container, and different tablets. One tablet includes a wheeled leg that extends downwardly from a center of gravity of the tablet, the leg supporting the tablet and reducing cantilever forces on the retainer. The back and seat comprise a flexible member co-molded onto a supportive partial-perimeter frame member and includes back and seat sections that matably engage corresponding surfaces of the frame member.
摘要:
A method and associated algorithm for controlling and optimizing the temperature of a device under test (DUT) through calculation of a moving setpoint which varies from the user-specified DUT core temperature. The method generally comprises (i) calculating a system operating range based on limits imposed by the DUT, associated temperature control system, and thermal conditioning equipment; (ii) determining the allowable operating range for the DUT based on permissible DUT stress and DUT core temperature; and (iii) calculating a control setpoint based on DUT and conditioning system temperature data, one or more pre-selected setup factors, and the system and DUT operating ranges. In another aspect of the invention, variable temperature differential limits are imposed on the CSP as a function of DUT core temperature in order to mitigate thermal shock to the DUT. Methods and apparatus for latent temperature control are also disclosed.
摘要:
A seating unit comprising a base configured to be positioned on a floor, a torsional energy unit connected to the base, a back connected to the torsional energy unit and a seat rotatably connected to the torsional energy unit. The torsional energy unit biases the back to a forward position. The torsional energy unit further limits angular rotation of the seat between a substantially horizontal seating position and a substantially vertical seating position.
摘要:
A self-contained data acquisition unit is provided for acquiring seismic data. The unit has a microprocessor and an antenna adapted to receive an electromagnetic signal. A decoder is connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“DTMF”) digits. A geophone interface is provided with a geophone for collecting acoustic data incident on the geophone. A memory is connected with the geophone interface for storing a representation of the collected acoustic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units. A battery power source is connected with the microprocessor.
摘要:
A method for making a blow molded plastic container that can withstand the rigors of pasteurization of retort processing. The method includes introducing an injection molded plastic preform into a blow mold; circulating heated oil through the sidewall mold halves at a temperature of at least about 225° F. and circulating heated oil through the base push up at a temperature of at least about 275° F. The container is blow molded from the preform and heat set within the mold. The container has enhanced crystallinity in the base as compared to when heated water is circulated through the mold.