A geographical web browser allows a user to navigate a network application such as the Word Wide Web by physically navigating in geographical coordinates. For example, a geographical web browser is implemented in a mobile unit such as a dashboard computer. The mobile unit includes one or more transducers such as antennas and is operative to receive locally broadcast signals or to operate a global positioning system (GPS) receiver. As the mobile unit navigates into different physical localities, different web pages are displayed by the geographical web browser. For example, a user desiring to buy a house can set the web browser to a real estate web page. Instead of clicking on a hyperlink to access web pages of properties in an area, the user drives into a first area and automatically receives web pages relating to homes in that area. When the mobile unit crosses town and enters a second area, a new set of web pages is downloaded relating to properties in the second area. The geographical web browser, methods, apparatus and systems disclosed herein enable improved road-navigation and traffic management, advertisement, and related services.

Geographical web browser, methods, apparatus and systems

An Internet appliance, comprising, within a single housing, packet data network interfaces, adapted for communicating with the Internet and a local area network, at least one data interface selected from the group consisting of a universal serial bus, an IEEE-1394 interface, a voice telephony interface, an audio program interface, a video program interface, an audiovisual program interface, a camera interface, a physical security system interface, a wireless networking interface; a device control interface, smart home interface, an environmental sensing interface, and an environmental control interface, and a processor, for controlling a data transfer between the local area network and the Internet, and defining a markup language interface communicated through a packet data network interface, to control a data transfer or control a remote device.

Internet appliance system and method

Methods and systems for providing data communication in medical systems are disclosed including a data communication unit to transmit one or more signals related to the monitored analyte level received from the analyte sensor to a remote device.

Analyte monitoring system and methods

The present invention can be used to facilitate the integration of wireless capability provided by wireless access points into an enterprise computer network. A gateway server is interposed between wireless access points and protected networks to provide security and integration functions, for example, authentication, access control, link privacy, link integrity, and bandwidth metering in various embodiments. Use of such a gateway server allows substantial control to be gained over network access even with the use of relatively simple access points. In general, such a gateway server receives a request to access the protected network. An authentication subsystem of the gateway server authenticates the user, preferably by accessing an external authentication server and returns a role to the authenticated user. An access controller in the gateway server provides differential access to the protected network based on the user's assigned role. A multiple gateway servers can be connected together to form a mesh network architecture.

Method and system for managing data traffic in wireless networks

A pulse oximeter may reduce power consumption in the absence of overriding conditions. Various sampling mechanisms may be used individually or in combination. Various parameters may be monitored to trigger or override a reduced power consumption state. In this manner, a pulse oximeter can lower power consumption without sacrificing performance during, for example, high noise conditions or oxygen desaturations.

Low power pulse oximeter

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 system for scanning a symbol that has a plurality of modes including a learning mode and an adaptive mode. When the scanner is in a learning mode, a plurality of scans are generated using a plurality of sets of operating parameters. A decoder decodes the plurality of scans generated by the scanner. A data collector collects readability data indicating whether the generated scan decodes successfully or unsuccessfully for each of the sets of operating parameters. A processor determines whether the readability data is acceptable for each of the sets of operating parameters. An optimal set of operating parameters is selected from the acceptable sets of operating parameters. The optimal set of operating parameters is stored along with data identifying the symbol so that the optimal set of operating parameters may be recalled for use in scanning symbols of a similar type or in a similar environment.

Symbol scanning system and method having adaptive pattern generation

The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.

Methods and apparatus for identifying asset location in communication networks

Methods, systems, and apparatuses for a reader transceiver circuit are described. The reader transceiver circuit incorporates a frequency generator, such as a surface acoustic wave (SAW) oscillator. A reader incorporating the reader transceiver circuit is configured to read a tag at very close range, including while being in contact with the tag. The transceiver can be coupled to various host devices in a variety of ways, including being located in a RFID reader (e.g., mobile or fixed position), a computing device, a barcode reader, etc. The transceiver can be located in an RFID module that is attachable to a host device, can be configured in the host device, or can be configured to communicate with the host device over a distance. The RFID module may include one or more antennas, such as a first antenna configured to receive a magnetic field component of an electromagnetic wave and a second antenna configured to receive an electric field component of an electromagnetic wave. The RFID module may include a detector that is configured to determine if the RFID module is positioned in proximity to an object, such as a RFID tag. The detector may operate as a trigger for the RFID module, to enable or trigger a function of the RFID module.

Single frequency low power rfid device

Asset tags for use in a WLAN/RFID system are provided. The asset tag 102 comprises a processor 302, an RFID antenna 305, 307, 311 coupled to the processor and configured to receive interrogations from an RFID reader and send replies to the RFID reader; and a wireless transceiver 310 coupled to the processor, the wireless transceiver configured to receive information from and end infor ation to a wireless access ort of a wireless local area network.

David P. Goren

Papers

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

Symbol scanning system and method having adaptive pattern generation

Methods and apparatus for identifying asset location in communication networks

Single frequency low power rfid device

Multimode wireless local area network/radio frequency identification asset tag