Abstract:
A sending device having a processing device and a plurality of transmitters performs a method for providing spatially selectable communications using deconstructed and delayed data streams. The method includes receiving a data stream (202), an indication (204) of a target point for the data stream, and a target volume (204) around the target point. The method further includes deconstructing (206) the data stream into a plurality of data substreams and, based on a spatial relationship between a corresponding transmitter and the target point, determining (208) a transmitter delay for each transmitter. Moreover, the method further includes determining (210), based on the target volume, a data interval spacing to apply between each data substream at transmission. In addition, the method includes sending (212), from the transmitters, the corresponding data substreams using the corresponding transmitter delays and the data interval spacing that confine reconstruction of the data substreams back into the data stream within the target volume
Abstract:
A system and method for orientation of an ultrasonic signal includes at least two emitters in a mobile device that includes an orientation sensor that can determine a device orientation. A receiver at a fixed, known point includes at least two microphones operable to receive an ultrasonic signal from the device. The mobile device can drive the emitters to produce an ultrasonic signal that is oriented towards the receiver. A location engine can establish a location of the mobile device using the time delay of arrival of an ultrasonic burst from the mobile device impinging on each microphone of the receiver. In response to the location and/or the orientation, the mobile device operable to drive the emitters to produce a signal that is oriented towards the receiver.
Abstract:
A system and method for orientation of an ultrasonic signal includes at least two emitters in a mobile device that includes an orientation sensor that can determine a device orientation. A receiver at a fixed, known point includes at least two microphones operable to receive an ultrasonic signal from the device. The mobile device can drive the emitters to produce an ultrasonic signal that is oriented towards the receiver. A location engine can establish a location of the mobile device using the time delay of arrival of an ultrasonic burst from the mobile device impinging on each microphone of the receiver. In response to the location and/or the orientation, the mobile device operable to drive the emitters to produce a signal that is oriented towards the receiver.
Abstract:
A system and method for orientation of an ultrasonic signal includes at least two emitters in a mobile device that includes an orientation sensor that can determine a device orientation. A receiver at a fixed, known point includes at least two microphones operable to receive an ultrasonic signal from the device. The mobile device can drive the emitters to produce an ultrasonic signal that is oriented towards the receiver. A location engine can establish a location of the mobile device using the time delay of arrival of an ultrasonic burst from the mobile device impinging on each microphone of the receiver. In response to the location and/or the orientation, the mobile device operable to drive the emitters to produce a signal that is oriented towards the receiver.
Abstract:
A sending device having a processing device and a plurality of transmitters performs a method for providing spatially selectable communications using deconstructed and delayed data streams. The method includes receiving a data stream (202), an indication (204) of a target point for the data stream, and a target volume (204) around the target point. The method further includes deconstructing (206) the data stream into a plurality of data substreams and, based on a spatial relationship between a corresponding transmitter and the target point, determining (208) a transmitter delay for each transmitter. Moreover, the method further includes determining (210), based on the target volume, a data interval spacing to apply between each data substream at transmission. In addition, the method includes sending (212), from the transmitters, the corresponding data substreams using the corresponding transmitter delays and the data interval spacing that confine reconstruction of the data substreams back into the data stream within the target volume
Abstract:
Ein System und Verfahren zum Orientieren eines Ultraschallsignals umfasst mindestens zwei Sender in einem mobilen Gerät, das einen Orientierungssensor umfasst, der eine Geräteorientierung bestimmen kann. Ein Empfänger an einem festen bekannten Punkt umfasst mindestens zwei Mikrofone, die betreibbar sind, um ein Ultraschallsignal von dem Gerät zu empfangen. Das mobile Gerät kann die Sender ansteuern, um ein Ultraschallsignal zu erzeugen, das zu dem Empfänger hin orientiert ist. Eine Ortungsmaschine kann unter Verwendung der Laufzeitdifferenz eines auf jedes Mikrofon des Empfängers auftreffenden Ultraschallstoßes von dem mobilen Gerät einen Standort des mobilen Geräts feststellen. Als Reaktion auf den Standort und/oder die Orientierung, ist das mobile Gerät betreibbar, um die Sender anzusteuern, um ein Signal zu erzeugen, das zu dem Empfänger hin orientiert ist.
Abstract:
A rugged, mobile, wireless data capture device with an integrated radio frequency identification ("RFID") reader is described. The wireless data capture device includes a durable, sealed enclosure. A wireless microprocessor is mounted within the enclosure. An RFID reader is coupled to the wireless microprocessor and mounted within the enclosure. The enclosure also supports a mounted communications antenna that is communicatively coupled to the wireless microprocessor, as well as RFID reader antenna communicatively coupled to the RFID reader. A power supply system supplies power to the data capture device. Finally, the durable, sealed enclosure includes mounting means for securing the enclosure to industrial equipment in a manner that mitigates effects of physical shock and vibration.
Abstract:
A method and apparatus updates a central plan for an area based on the location of a plurality of radio frequency identification (RFID) readers by identifying (210) the location of each of the RFID readers using an associated location mechanism. A read zone coverage area for each of the RFID readers is identified (220). The central plan is updated (230) with the position and the read zone coverage area relative to the position for each of the RFID readers. A status of read zone coverage is determined (240) for the area based on the read zone coverage areas on the central plan for all of the RFID readers in the plurality of RFID readers, wherein a report is provided (250) based on the status of read zone coverage for the area.
Abstract:
A programmable controller and software that monitors periods an RF transmitter is active and a output power level during those periods of activity. These two values are multiplied together and accumulated over time to provide a value for the RF emissions for some period. A limit is set for the RF emissions for any period and if the RF emissions exceeds (or is expected to exceed given the current rate) the set limit, the system limits the subsequent emissions to not exceed the set limit. This reduction in emissions rate come at the cost of a small performance reduction.
Abstract:
A programmable controller and software that monitors periods an RF transmitter is active and a output power level during those periods of activity. These two values are multiplied together and accumulated over time to provide a value for the RF emissions for some period. A limit is set for the RF emissions for any period and if the RF emissions exceeds (or is expected to exceed given the current rate) the set limit, the system limits the subsequent emissions to not exceed the set limit. This reduction in emissions rate come at the cost of a small performance reduction.