Abstract:
The present invention relates to a nanogel comprising a polymer network of repetitive, crosslinked, ethylenically unsaturated monomers of Formula I: (X)m-(Y)n-(Z)o Formula I wherein X is a water-soluble monomer containing ionic or hydrogen bonding moieties; Y is a water-soluble macromonomer containing repetitive hydrophilic units bound to a polymerizeable ethylenically unsaturated group; Z is a multifunctional crosslinking monomer; m ranges from 50-90 mol %; n ranges from 2-30 mol %; and o range from 1-15 mol % and a method for preparing a nanogel comprising preparing a header composition of a mixture of monomers X, Y, and Z, and a first portion of initiators in water; preparing a reactor composition of a second portion initiators, surfactant, and water; bringing the reactor composition to the polymerization temperature; holding the reactor composition at the polymerization temperature, and adding the header composition to the reactor composition to form a nanogel of Formula I.
Abstract:
A wireless access point and multiple wireless terminals exchange utilization, status, mobility and reception characteristics. Each wireless terminal generates reception characteristics based on transmissions received from the wireless access point and from other devices in the network. In one operating mode, the characteristics gathered by the wireless devices are forwarded to the wireless access point, and, based on all received characteristics, the wireless access point selects its own transmission power for different types of the transmission. In another mode, all characteristics are exchanged between every wireless terminal and the access point so that each can independently or cooperatively make transmission power control decisions. In a further mode, the wireless access point adjusts protocol parameters based on an assessment of the characteristics received from the client devices, to detect an event such as a hidden terminal condition. The utilization, status, mobility, and reception characteristics include received signal strength, error rates, estimated battery life, availability of unlimited power, active versus sleep mode ratios, anticipated bandwidth utilization, coding schemes available, deterministic/non-deterministic requirements, encryption and security requirements, quality of service requirements, position, velocity, stationary status, etc. Gathering of such characteristics involves both retrieval of preset parameters from memory and generating parameters based on received transmissions (including test packets).
Abstract:
Fluid monitoring methods, systems and apparatus are disclosed, including a portable subassembly that is in electrical communication with a sensor in contact with the fluid being monitred. Preferred embodiments for the sensor include one or more flexural resonator sensing elements. In preferred embodiments the sensor subassembly is ported to multiple fluidic systems to monitor the fluid properties in an effecient manner.
Abstract:
A phonebook database, distributed across one or more of an initiating telephony device, recipient telephony devices, and one or more servers, supports a phonebook visual display for caller interaction. The database adapts based on changing status of recipients and recipient telephony devices, e.g., recent recipient activity, time of day or week information, device operational status, bandwidth and media capabilities, etc. The database also supports initiation of calls to recipients via for example handle-to-network address association. To maintain accurate phonebook content, multiple recipient devices and external support servers have access to the phonebook database either directly or indirectly (e.g., via another recipient device, server or recipient device). The database associatively stores client handle, network addressing, and meta-data information.
Abstract:
A cable infrastructure includes a plurality of cable modem circuits communicatively coupled to a cable network and associated with a corresponding one of a plurality of subscribers. Each of a plurality of telephones has both a POTS (Plain Old Telephone System) interface and a unique telephone number and associates with a corresponding one of the plurality of subscribers. Each of a plurality of interface circuits couples one of the plurality of cable modem circuits with a corresponding one of the plurality of telephones via the POTS interface. A head end system communicatively couples to the cable network, the public switched telephony network, and the Internet network and supports address mapping that enables communication exchanges between one of the plurality of telephones and an Internet telephony device. The address mapping also enables communication exchanges between telephones serviced by differing head ends via an Internet pathway that is independent of the public switched telephony network.
Abstract:
An infrastructure that supports both Voice over Internet Protocol (VoIP) telephony via the Internet and Public Switched Telephone Network (PSTN) telephony via the PSTN. A plurality of client telephony bridging devices communicatively couple to both the Internet and to the PSTN and are operable to bridge calls between the Internet and the PSTN. Server processing circuitry communicatively couples to the plurality of client telephony bridging devices and is operable to receive a voice call setup request from a calling voice terminal via the Internet or PSTN. The server processing circuitry is operable to select a servicing telephony bridging device from the plurality of client telephony bridging devices. The servicing client telephony bridging device is operable to bridge an incoming call for the calling voice terminal between the Internet and the PSTN.
Abstract:
Embodiments of the present invention provide a network infrastructure operable to support the exchange of communications, such as textual, image, video and voice communications, between a first client terminal having a first user identifier and service by a first service provider and a second (destination) client terminal having a second user identifier and serviced by a second service provider. This network infrastructure includes a packet-switch network, a shared database and a number of client terminals serviced by different service providers. These terminals include a network interface and are identified by their service provider by a network address. The shared database associates user identifiers with network addresses. This allows a user to access the shared database in order to initiate a call request from the first client terminal to the second client terminal. The first client terminal receives the network address or vectoring information on the network address of the destination terminal through the shared database. This shared database may also have metadata used to manage the call.
Abstract:
A sensor for sensing one or more properties of a vehicle fluid has a tuning fork resonator adapted to contact the fluid. The tuning fork resonator comprises two tines and is operable to oscillate so that the two tines move in opposite phase at a frequency of less than 1 MHz while contacting the fluid to generate a resonator response indicative of one or more properties of the fluid. In another aspect, a sensor includes a substrate and a flexural resonator on the substrate and adapted to contact the fluid. Circuitry for operation of the resonator is on the substrate. The resonator is adapted to receive an input signal and to oscillate while contacting the fluid to generate a resonator response indicative of one or more properties of the fluid. One suitable application for the invention is monitoring the condition of a vehicle engine oil.
Abstract:
A bridging computing device includes processing circuitry communicatively coupled to a user interface, a Public Switched Telephone Network (PSTN) interface, a packet data network interface. The processing circuitry receives a first call setup request from the PSTN via the first interface, selectively prepares a second call setup request based upon the first call setup request, and sends the second call setup request to the Internet via the second interface. The processing circuitry may obtain and use bridging instructions to prepare the second call setup request. The processing circuitry may receive the first call setup request via the PSTN interface or the packet data network interface. The processing circuitry may send the second call setup request via the PSTN interface or the packet data network interface. The bridging computing device may optionally bridge a corresponding call and/or enable another bridging device to bridge the call.
Abstract:
A Set Top Box includes processing circuitry, a tuner, a user interface, a remote control interface, a Public Switched Telephone Network (PSTN) interface, and a packet data network interface. To service an incoming call, the processing circuitry obtains and executes bridging instructions that establish a pathway between the PSTN and packet data network interfaces. With such pathway, a call between a PSTN telephony device and an Internet telephony device can be established and maintained via the bridging Set Top Box. Voice over Internet Protocol (VoIP) calls are bridged between first and second VoIP terminals using only the packet data network interface. Telephony instructions used in making bridging decisions may be stored locally or remotely and accessed by the processing circuitry in an appropriate manner when making bridging decisions.