Symbol Technologies, LLC

Harmon Industries, Inc.

Mark P Orlassino

James Robert Fuccello

Anthony D'Agostino

George Dellaratta

Russell Calvarese

Irwin Weitman

Umberto R Scaramozzino

Larry Maniscalco

Ultrasonic transmitters periodically transmit ranging signals at unknown transmit timer values, and an ultrasonic receiver receives the ranging signals at known receive timer values on a mobile device in a venue in which a time difference of arrival (TDOA)-based ultrasonic locationing system is deployed. A controller infers the transmit timer values, and determines a current, real-time position of the mobile device based on flight time differences between the transmit timer values inferred by the controller and the known receive timer values.

Arrangement for, and method of, locating a mobile device in a venue by inferring transit timer values of ranging signals received by the mobile device in a time difference of arrival (TDOA)-based ultrasonic locationing system

A multi-context mobile unit includes a processor, a user interface coupled to the processor and configured to accept user input, a storage component coupled to the processor, and an input/output module coupled to the processor and configured to interact with at least one external network, wherein the processor is configured to selectively execute a plurality of virtual devices stored within the storage component in response to the user input, and wherein the plurality of virtual devices includes a first virtual device and a second virtual device having separate and isolated data access.

Methods and apparatus for a mobile unit with device virtualization

A wireless scanning system for obtaining data related to items includes a radio frequency identification (RFID) reader configured to interrogate RFID tags and obtain tag data from interrogated RFID tags, and a mobile wireless device that is incapable of interrogating RFID tags. The system uses a device RFID tag in close proximity to the mobile wireless device, where the device RFID tag is configured to convey data that identifies the mobile wireless device when interrogated by the RFID reader. When the mobile wireless device is within close proximity to an item of interest having a corresponding item RFID tag, the RFID reader interrogates the device RFID tag and the item RFID tag. Thereafter, the RFID reader routes the item tag data in a manner destined for the mobile wireless device. This system enables the mobile wireless device to obtain the item tag data even though the mobile wireless device has no native RFID reader capabilities.

RFID wireless scanning system for non-RFID mobile devices, and related operating methods

Described is a system which includes a first radio transceiver operating in accordance with a first communication protocol and a second radio transceiver operating in accordance with a second communication protocol. The first radio transceiver transmits a first signal to the second transceiver, the first signal including data related to operation of the first radio transceiver. The second radio transceiver adjusts operation as a function of the data.

System and method for cohesive radio operation

Described is a method including collecting roaming data for a network. The method further includes creating a scan list based on the roaming data, wherein the scan list including a prioritization of a plurality of access points for roaming. The method further includes transmitting the scan list to a mobile unit. Further described in a system including a collection module collecting roaming data for a network. The system further includes a creation module creating a scan list based on the roaming data, the scan list including a prioritization of a plurality of access points for roaming. The system further includes a transmitter transmitting the scan list to a mobile unit.

System and method for adaptive/predictive location-based roaming optimization

Described is a method for writing data onto a storage device from a wireless access point ('AP'), providing the data to a master mobile unit ('MMU'), authenticating an identity of the MMU at the AP and transmitting the data from the MMU to at least one other mobile unit (&#x201c;MU&#x201d;). Also described is a device having a connector coupling a storage device to the device, the storage device including data received from a network device and a transceiver communicating with the network device to authenticate the device, wherein when the device is authenticated, the transceiver further transmits the data to at least a first mobile unit (&#x201c;MU&#x201d;).

Method and system for distributing data within a group of mobile units

Described is a system having a mobile station and an access point which connects the mobile station to a network. The mobile station has a first mode of operation and a second mode of operation. In the first mode of operation, the mobile station transmits a data packet intended for a further mobile station to the access point and the access point transmits the data packet to the further mobile station. In the second mode of operation, the mobile station transmits the data packet intended for the further mobile station directly to the further mobile station.

System and method for multi-mode radio operation

A computing arrangement may include a first radio transceiver operating in accordance with a first communication protocol using a frequency band and a second radio transceiver operating in accordance with a second communication protocol using the frequency band. An access point operates in accordance with the first communication protocol and transmits a communication signal that has a frame including a first time interval indicative of when communications using the first communication protocol via the frequency band are permitted to the computing arrangement. The computing arrangement determines if the frame includes a second time interval, which is indicative of and is reserved for exclusive communications in accordance with the second communication protocol. If the second time interval is absent from the frame, the computing arrangement inserts the second time interval into the frame. The computing arrangement communicates with a further device only during the second time interval.

System and method for coexistence in wireless networks

Detection of a zero speed or moving railway vehicle wheel or other metallic object is accomplished by providing a balanced E-core inductive detector. An exciter coil on the center leg of the E-core inductively couples a pair of sensor coils connected in series opposition on the outside legs of the E-core. A voltage detector responsive to unbalancing of the E-core magnetic field by a train wheel or other metallic object is connected to the output of the sensor coils. A zero speed wheel located at the center of the magnetic field is detected by using the output of one of the sensor coils compared with the phase shifted and amplitude adjusted exciter signal. Speed and direction of travel are also determined by monitoring wheel detection output sequencing and timing.

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Centereach, NY, United States of America

Mark P Orlassino