Symbol Technologies, LLC

Sarosh N Vesuna

David P Goren

Simon Bard

Allan Perry Herrod

John Raymond Klein

Chris Zegelin

Alex Gernert

A mobile device for data communications has a radio circuit for data communications with a wireless network access point and a radio tag for transmitting location-identifying radio signals. The radio circuit and the radio tag are co-located on a circuit board or are commonly powered. The operation of the radio circuit and the radio tag are segregated in time to avoid interference. Standard wireless network interface protocol functions are exploited to identify time intervals in which the radio circuit is inactive for data communications. These time intervals are used to operate the radio tag to transmit the location-identifying radio signals.

Interference mitigation in mobile units having location transmitters

An apparatus for interfacing a wireless local area network with a wide area, cellular or public switched telephone network including the function of a wireless LAN base station or access point, and a gateway. The interface may contain one or more different types of gateways, including a PSTN voice gateway, an analog modem gateway, and others. The apparatus may also include a well designed to receive the handset or mobile computer device to recharge the battery as well as to automatically transfer data when the phone or device is secured in the well.

Apparatus for interfacing a wireless local network and a wired voice telecommunications system

A product location information retrieval system for use by a customer in a retail establishment including a computer terminal with an optical reader arranged to receive a data input query from the customer using the terminal and relating to a product, and a display in the terminal for displaying an image of a product to be accessed by the user.

Terminal with optical reader for locating products in a retail establishment

A wireless communications network includes a reconfigurable array of access points for linking wireless devices in an infrastructure mode. One or more of the access points are mobile. The mobile access points in the network can be repositioned to change the geographic distribution of the bandwidth coverage provided by the wireless network. The mobile access points may be repositioned to redistribute available network bandwidth heterogeneously according to the demand for bandwidth in local areas and to meet quality of service standards.

Reconfigureable arrays of wireless access points

Real time location system functionality is provided in conjunction with bar codes and other coded information devices to provide location information in transaction processing systems. A system and method of the present invention may be used to track the location of objects which are coupled to coded information devices.

System and method for providing location information in transaction processing

The present invention is useful in connection with calibration of a wireless location system based on RF signals within a facility. Identification devices are provided at fixed locations which are selected within the facility. The RF environment is sampled at selected locations and data representing the sampled RF environment and the corresponding selected location is provided to a computer which maintains a database corrolating the RF environment data and the selected locations to be used with calibrating a location system.

Method and system for calibrating a location system

An interface chip for a peripheral module connectable to and for use with a host computer is provided which utilizes an static Random access memory (SRAM) within the interface chip for both encryption of data packets and temporary storage of Card Information Structure (CIS) information. The CIS information is stored in the SRAM only during the power-up phase of operation, when encryption of data packets is not necessary and thus the memory is not being utilized for that purpose. This precludes the need for a separate SRAM IC, thus saving space on the card.

Data encryption integrated circuit with on-board dual-use memory

A portable data device system includes a portable data device and a cradle for receiving the portable data device. The cradle is arranged to recharge the portable data device power supply and/or upload or download information to and from the portable data device. The cradle and portable data device are in wireless communication allowing a minimum of processing and data storage capability at the front end and hence operation of the portable data device as a thin client.

Portable data terminal and cradle

When a connection between a remote unit (MU) and a first stationary access point (SAP) in a wireless network is impeded, an alternative connection between the MU and a second stationary access point is set up using information from announcement messages. The announcement messages are transmitted to notify MUs about messages waiting to be transferred, but the MU looking for an alternative to the impeded connection uses the announcement message to determine other stationary access points it may communicate with. This eliminates congestion normally caused by the MU performing dedicated probing to determine alternative stationary access points. Probing messages and probing response messages often cause congestion in a network.

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Los Altos, CA, United States of America

Sarosh N Vesuna