Abstract: The present invention includes a system and method to implement Internet Protocol (IP) hosts on an application specific bus without disrupting the application specific bus. In one embodiment, an IP host determines the application specific bus address of a remote device, the remote device having an IP address in addition to the application specific bus address. The IP host formats a message conforming to the application specific bus, the message containing IP data and message identifiers. The IP host transmits the message on the application specific bus. In addition, the IP host negotiates for network access on the application specific bus. A destination IP host receives the message based upon the application specific bus address of the destination IP host and authenticates the message as an IP messages based upon the message identifiers. In addition, the destination IP host extracts the IP data from the message and processes the IP data by a conventional IP network processing protocol.

Abstract: The present invention includes a system and method to implement Internet Protocol (IP) hosts on an application specific bus without disrupting the application specific bus. In one embodiment, an IP host determines the application specific bus address of a remote device, the remote device having an IP address in addition to the application specific bus address. The IP host formats a message conforming to the application specific bus, the message containing IP data and message identifiers. The IP host transmits the message on the application specific bus. In addition, the IP host negotiates for network access on the application specific bus. A destination IP host receives the message based upon the application specific bus address of the destination IP host and authenticates the message as an IP messages based upon the message identifiers. In addition, the destination IP host extracts the IP data from the message and processes the IP data by a conventional IP network processing protocol.

Abstract: A method of generating a noise estimate during seismic surveying, including measuring noise energy having a plurality of frequencies in a second time interval. The second time interval having a second start time delayed from a first start time of a first time interval during which a first plurality of reflected seismic signals are present. The plurality of reflected seismic signals having the plurality of frequencies. The second time interval approximately concurrent with the first time interval to measure one of the plurality of frequencies of the noise energy different than one of the plurality of frequencies of the first plurality of reflected seismic signals that are present. A noise estimate is generated based on the noise energy measured.

Abstract: A communication system having hubs and mobile units where a mobile unit uses selection signals from hubs during dedicated time slots for selecting a particular hub for communication during operational time slots. The hubs communicate on respective channels. The mobile units communicate with a particular hub on the channel associated with that hub. Each hub transmits a selection signal during a time slot that is dedicated for the selection signal from that hub. The mobile units base their selection of hub upon a comparison of the error rates of the respective selection signals and then communicate with the selected hub during with operational signals during the operational time slots. Certain message data is included in the selection signal from all the hubs in order to increase the reliability that the message data will be received by the mobile units.

Abstract: A communication system using GPS-based time for synchronizing communication data packets and symbols. The communication system includes a transmit apparatus for transmitting and a receive apparatus for receiving a communication data signal. The transmit apparatus includes a transmit station GPS receiver for providing GPS-based time, a transmit framer for using the GPS-based time for framing packets of communication data symbols, and a transmit symbol timer for synchronizing the communication data symbols to the GPS-based time. The receive apparatus includes a GPS receiver for providing the GPS-based time, a receive framer for using the GPS-based time for receiving the packets of the communication data signal, and a receive symbol timer for synchronizing the reception of the communication data symbols to the GPS-based time.

Abstract: A method of generating a noise estimate during seismic surveying, including measuring noise energy having a plurality of frequencies in a second time interval. The second time interval having a second start time delayed from a first start time of a first time interval during which a first plurality of reflected seismic signals are present. The plurality of reflected seismic signals having the plurality of frequencies. The second time interval approximately concurrent with the first time interval to measure one of the plurality of frequencies of the noise energy different than one of the plurality of frequencies of the first plurality of reflected seismic signals that are present. A noise estimate is generated based on the noise energy measured.

Abstract: A method of generating a noise estimate during seismic surveying, including measuring noise energy having a plurality of frequencies in a second time interval. The second time interval having a second start time delayed from a first start time of a first time interval during which a first plurality of reflected seismic signals are present. The plurality of reflected seismic signals having the plurality of frequencies. The second time interval approximately concurrent with the first time interval to measure one of the plurality of frequencies of the noise energy different than one of the plurality of frequencies of the first plurality of reflected seismic signals that are present. A noise estimate is generated based on the noise energy measured.

Abstract: Method and apparatus for determining vehicle present location using a location determination system (LDS), such as GPS, GLONASS, Loran or an inertial navigation system, that receives LDS signals from two or more sources. An LDS signal antenna and receiver/processor, an interrogation signal (IS) receiver means and IS responder means are electrically connected and carried on the vehicle. When a vehicle trigger event occurs, a specified vehicle IS is broadcast and is received by the IS receiver means. The IS receiver means causes the LDS receiver/processor to obtain vehicle present location information and to provide such information for the IS responder means, for transmission to an IS contact receiver (selected based upon vehicle present location). The IS receiver means and IS responder means are independently selected to be a cellular phone receiver, a paging signal receiver, a WAN/LAN workstation, or an Earth-satellite-Earth radiowave link, such as ORBCOMM.SM..

Abstract: A radio system that determines its location and configures itself according to the radio communication regulations of the location. The radio system includes a reference station and a rover station. The reference station includes a GPS receiver for determining a reference geographical location, a map converter for storing information for the parameter values for the radio regulations in one or more geographical regions and for converting the reference geographical location to the parameter values for the geographical region that encloses the location, and a reference radio for transmitting a radio message signal according to the parameter values.

Abstract: An open loop proximity detector is contemplated which receives a Doppler frequency when a target is first detected, and predicts a specific fuzing Doppler frequency. The detector continues to transmit and receive electromagnetic waves and sends a detonating signal to the fuze when the predicted fuzing Doppler frequency is received by the detector. The Doppler frequency of the first, or front surface in a forward moving direction of the target is received and is used to detonate the fuze. Thus the ideal surface of the target, the front surface, detonates the fuze and Doppler frequencies from other surfaces of the target are not allowed to interfere with the detonating process.

Abstract: Method and apparatus for determining the present location of a missing vehicle, such as an automobile or marine vessel, using a Global Positioning System that receives GPS signals from two or more GPS satellites. A GPS antenna, GPS signal receiver/processor, a paging responder, a cellular telephone and associated antenna, and a controller/modem are installed in a vehicle and electrically connected together. When the vehicle is determined to be missing, because the vehicle has been misplaced, lost or stolen, the vehicle owner or operator contacts a vehicle location service center, which broadcasts a paging request that is received by the paging responder on the vehicle. The paging responder causes the controller/modem to interrogate the GPS receiver/processor to determine the present location of the vehicle. The receiver/processor determines the present vehicle location and notifies the controller/modem of such location.