Abstract: Minimized Wave-zone Buoyancy is a new approach to oil and gas platform design with superior construction and performance characteristics compared to state-of-art off-shore drilling and production platforms. Minimized Wave-zone Buoyancy platforms capitalize on low cross sectional area of the portion of the platform exposed to waves. The low cross sectional area reduces buoyancy forces that result from vertical platform movement, enabling the platform to oscillate at a low natural frequency. The low cross sectional area also minimizes the cyclical vertical forces induced by waves. Compare to current designs, application of the Minimized Wave-zone Buoyancy concept will result in a lower natural frequency of oscillation, lower overall weight of platform, or both. Minimized Wave-zone Buoyancy offers an attractive alternative with improved platform stability, fatigue considerations, lower construction and installation costs, and shorter implementation schedule.

Abstract: The invention teaches elimination of the need for allocating a telephony port or equivalent processor resource for realtime facsimile transmission through a broadband access gateway by replacing a fax modem or analog fax machine with a computer system having a network connection to the gateway. A software application on the computer uses a serial port redirector that provides a virtual communication port for facsimile software applications that would otherwise use a fax modem on a computer. The port redirector captures fax data sent to a serial communication port on the computer and sends it to the virtual fax module on the gateway. The gateway has a virtual fax software application associated which emulates a Class 1 or Class 2 fax modem interface from the client-side PC. The gateway uses a codec to convert fax data into ITU T.38 standards for “Procedures for real-time Group 3 facsimile communication over IP networks”. Packetized T.

Abstract: A system to enable TTY communication between a legacy TTY phone and an IP phone over a packet network using a TTY relay protocol established between the IP phone and a media gateway at a central office of the PSTN. The system may also use a voice over Internet Protocol gateway to connect a personal computer to the packet network instead of an IP phone to accomplish TTY communication between software on the computer and a legacy TTY phone.

Abstract: Modem relay provides a local interface to the modem on both ends of a call, demodulates the full duplex data stream, packetizes the bits for transport over an IP network, and remodulates the data stream at the remote end. It is advantageous to measure the throughput efficiency of the modem relay. The modem relay provides bandwidth savings, and resistance to network packet loss. However, the resistence is often accomplished by redundancy techniques which can reduce effective throughput rates. Because the modem data stream can be transported in a redundant fashion, which allows for seamless error recovery in the event of single or double packet loss events, lost packet recovery minimizes computational requirements and provides for recovery of lost packets during burst loss of a series of sequential packets. The present invention teaches a system and method for determining the throughput of various modem relay implementations.

Abstract: A modem relay provides a local interface to the a modem on both ends of a call, demodulates the full duplex data stream, packetizes the bits for transport over an IP network, and remodulates the data stream at the remote end. The modem relay negotiates a best supported rate and modulation. If no common rate and modulation is supported by the modems at each end of the communication, the modem relay components will establish independent connections to the modems at each end and transmit information across the packet network. The modem data stream can also be transported in a redundant fashion, which allows for seamless error recovery in the event of single or double packet loss events. Since the data stream can be completely recovered after packet loss, the remote modem is able to recreate the local modem's transmission exactly.

Abstract: Minimized Wave-zone Buoyancy is a new approach to oil and gas platform design with superior construction and performance characteristics compared to state-of-art off-shore drilling and production platforms. Minimized Wave-zone Buoyancy platforms capitalize on low cross sectional area of the portion of the platform exposed to waves. The low cross sectional area reduces buoyancy forces that result from vertical platform movement, enabling the platform to oscillate at a low natural frequency. The low cross sectional area also minimizes the cyclical vertical forces induced by waves. Compare to current designs, application of the Minimized Wave-zone Buoyancy concept will result in a lower natural frequency of oscillation, lower overall weight of platform, or both. Minimized Wave-zone Buoyancy offers an attractive alternative with improved platform stability, fatigue considerations, lower construction and installation costs, and shorter implementation schedule.

Abstract: The modem relay provides a local interface to the modem on both ends of a call, demodulates the full duplex data stream, packetizes the bits for transport over an IP network, and remodulates the data stream at the remote end. The modem relay negotiates a best supported rate and modulation. If no common rate and modulation is supported by the modems at each end of the communication, the modem relay components will establish independent connections to the modems at each end and transmit the information across the packet network. The modem data stream can also be transported in a redundant fashion, which allows for seamless error recovery in the event of single or double packet loss events. Since the data stream can be completely recovered after packet loss, the remote modem is able to recreate the local modem's transmission exactly.

Abstract: Modem relay provides a local interface to the modem on both ends of a call, demodulates the full duplex data stream, packetizes the bits for transport over an IP network, and remodulates the data stream at the remote end. It is advantageous to measure the throughput efficiency of the modem relay. The modem relay provides bandwidth savings, and resistance to network packet loss. However, the resistence is often accomplished by redundancy techniques which can reduce effective throughput rates. Because the modem data stream can be transported in a redundant fashion, which allows for seamless error recovery in the event of single or double packet loss events, lost packet recovery minimizes computational requirements and provides for recovery of lost packets during burst loss of a series of sequential packets. The present invention teaches a system and method for determining the throughput of various modem relay implementations.