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1841results about How to "improve performance" patented technology

Air based emergency monitor, multimode communication, control and position finder system

InactiveUS20070032246A1extend coverageimprove performance
Air based emergency monitor, multimode communication, control and position finder system with a receiver having multiple inputs for reception and demodulation of position finder signals to position finder baseband signals. One or more cameras or microphones or data signal generation devices, storage devices, and processors for recording or storing and processing of signals obtained from one or more cameras or microphones or data signal generation devices. A processor for processing input signals and for providing cross-correlated shaped in-phase and quadrature-phase baseband signals. Transceivers for multimode GSM, spread spectrum, CDMA, OFDM, TDMA and other signals. A receiver and demodulator for reception of modulated position finder radio frequency (RF) signals transmitted by a Global Positioning System (GPS) transmitter and a receiver and demodulator for reception of modulated position finder radio frequency (RF) signals transmitted by other than a GPS transmitter for providing the demodulated and receiver processed signal to an emergency unit. An air based position finding, signal monitor, control and emergency multimode communication system for use in one or more units located in or on airplanes, or helicopters, or unmanned vehicles (UV) or balloons or rockets, or missiles, or space shuttles or birds or other air based items with a multimode bit rate agile (BRA) and modulation demodulation (modem) format selectable (MFS) signal modulator.
Owner:FEHER KAMILO

Apparatus and method for performing fast fibre channel write operations over relatively high latency networks

ActiveUS20050117522A1improve performancehigh latency
A method and apparatus to improve the performance of a SCSI write over a high latency network. The apparatus includes a first Switch close to the initiator in a first SAN and a second Switch close to the target in a second SAN. In various embodiments, the two Switches are border switches connecting their respective SANs to a relatively high latency network between the two SANs. In addition, the initiator can be either directly connected or indirectly connected to the first Switch in the first SAN. The target can also be either directly or indirectly connected to the second Switch in the second SAN. During operation, the method includes the first Switch sending Transfer Ready (Xfr_rdy) frame(s) based on buffer availability to the initiating Host in response to a SCSI Write command from the Host directed to the target. The first and second Switches then coordinate with one another by sending Transfer Ready commands to each other independent of the target's knowledge. The second switch buffers the data received from the Host until the target indicates it is ready to receive the data. Since the Switches send frames to the initiating Host independent of the target, the Switches manipulate the OX_ID and RX_ID fields in the Fibre Channel header of the various commands associated with the SCSI Write. The OX_ID and RX_ID fields are manipulated so as to trap the commands and so that the Switches can keep track of the various commands associated with the SCSI write.
Owner:CISCO TECH INC
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