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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 8054215 | Precision registration for radar A precision radar registration (PR2) system and method that employs highly accurate geo-referenced positional data as a basis for correcting registration bias present in radar data. In one embodiment, the PR2 method includes sample collection a... | 11/08/2011 |
| 8004452 | Methods and apparatus for coordinating ADS-B with mode S SSR and/or having single link communication Methods and apparatus for an ADS-B system having a single link for communication and/or ADS-B/Mode-S coordination. With this arrangement, the system communication is efficiently used. ... | 08/23/2011 |
| 7936300 | Method for reducing multipath propagation effects during the processing of replies in mode “S” The processing method according to the invention is a method of processing replies from targets interrogated by a surveillance radar according to a mode S interrogation of all the targets present in the receiving lobe of the radar, whereby the different targets pres... | 05/03/2011 |
| 7880667 | Methods and apparatus for using interferometry to prevent spoofing of ADS-B targets Methods and apparatus for preventing spoofing of targets, such as aircraft, in an air traffic control system. In one embodiment, first and second antennas at respective ground stations can be used to receive a signal transmitted by an aircraft from which a phase sig... | 02/01/2011 |
| 7876259 | Automatic dependent surveillance system secure ADS-S An air traffic control automatic dependent, WAAS/GPS based, surveillance system (ADS), for operation in the TRACON airspace. The system provides encryption protection against unauthorized reading of ADS messages and unauthorized position tracking of aircraft using m... | 01/25/2011 |
| 7746268 | Mode S secondary surveillance radar A transmitter (13) operates in an immediate scan after an initial acquisition or detection of an altered aircraft ID by a changed flight status, to transmit to an aircraft a sequence of interrogation signals requesting an aircraft ID transmission, a verifier ... | 06/29/2010 |
| 7719459 | Secondary radar message decoding A method and apparatus for determining a value of each bit in a secondary radar response pulse train sampled at a bit rate greater than one sample per bit is provided. The received signal is sampled repeatedly over a bit period. A scale factor for a weighting functi... | 05/18/2010 |
| 7612705 | Mode S radar Disclosed is a Mode S radar which specifies an aircraft by transmitting interrogations to an aircraft A equipped with a Mode S transponder, and by then receiving and decoding replies corresponding to these interrogations. In the Mode S radar, detection reports on th... | 11/03/2009 |
| 7570195 | High-capacity location and identification system for cooperating mobiles with frequency agile and time division transponder device on board Cooperating mobiles (ground vehicles, aircraft) are located and identified by Multilateration and Automatic Dependent Surveillance-Broadcast (ADS-B) techniques using the frequency band and the format of the Secondary Surveillance Radar (SSR) signals in high traffic ... | 08/04/2009 |
| 7501977 | Mode S radar Disclosed is a Mode S radar which specifies an aircraft by transmitting interrogations to an aircraft A equipped with a Mode S transponder, and by then receiving and decoding replies corresponding to these interrogations. In the Mode S radar, detection reports on th... | 03/10/2009 |
| 7495602 | Single air traffic control (ATC) operator interface Systems and methods for communication using a plurality of data link standards through a common operator interface are disclosed. In one embodiment, the system includes components configured to select and establish communication with an air traffic control center us... | 02/24/2009 |
| 7471235 | Mode S transponder transmission signal decoder and mode S transponder transmission signal decoding method There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs an arithmetic operation of a degree of auto correlation between an inc... | 12/30/2008 |
| 7430415 | Real-time programming of electronic radio system resource assets A method to efficiently implement a reconfigurable electronic radio system (400) including resource assets (402-408, 410-416, 418, 420-426, 428) and a processor (428). The processor (428) generates RF control and swit... | 09/30/2008 |
| 7429950 | Method and apparatus to extend ADS performance metrics A method and system are provided for measuring and monitoring performance metrics of a non-ADS-B tracking system and generating performance metrics for the non-ADS-B tracking system in terms of ADS-B equivalent performance metrics. An aircraft transmits various tran... | 09/30/2008 |
| 7420501 | Method and system for correlating radar position data with target identification data, and determining target position using round trip delay data A method and system for using a single transceiver to correlate radar position data with target identification data. Two transceivers, operating in round trip delay mode, can be used to provide two possible positions for a given target when radar coverage is lost or... | 09/02/2008 |
| 7408497 | Method and device for determining a reference value of a response, in particular of a mode S response received by a secondary radar The present invention applies to the surveillance of, in particular civil, air traffic, and more particularly, to cooperative aircraft ground systems which make it possible to pinpoint in radial distance and in azimuth the aircraft present in a certain volume and to... | 08/05/2008 |
| 7408498 | Secondary surveillance radar and its interrogation transmission method An interrogation transmission method of a secondary surveillance radar compares prediction angle ranges for transmitting interrogations with a beam-width of an antenna, and transmits the interrogations at every roll-call period if the prediction angle ranges for tra... | 08/05/2008 |
| 7391359 | Mode S transponder transmission signal decoder and Mode S transponder transmission signal decoding method There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs an arithmetic operation of a degree of auto correlation between an inc... | 06/24/2008 |
| 7362258 | Transponder detection system using radio and light wave signals A target object detection system for detecting a target object using a detector and a tag on the target object; the tag includes a radio wave receiver receiving radio wave from the detector; a light receiver receiving a light signal from the detector; a receipt sign... | 04/22/2008 |
| 7356390 | Systems and applications of lighter-than-air (LTA) platforms Innovative new methods in connection with lighter-than-air (LTA) free floating platforms, of facilitating legal transmitter operation, platform flight termination when appropriate, environmentally acceptable landing, and recovery of these devices are provided. The n... | 04/08/2008 |
| 7352318 | Method and system for real time pulse processing in ATCRBS/Mode-S transponders An apparatus for processing pulses in ATCRBS/Mode S interrogations includes an antenna for receiving a radio frequency interrogation signal. The radio frequency interrogation signal is downconverted by a downconverter to an intermediate frequency signal. The interme... | 04/01/2008 |
| 7328012 | Aircraft communications system and related method for communicating between portable wireless communications device and ground An aircraft communications system includes a wireless local area network (LAN) access point positioned within the aircraft that receives and transmits wireless communications to and from at least one portable wireless communications device. A control panel is operat... | 02/05/2008 |
| 7301497 | Stereo display for position sensing systems A method for display of radar data includes performing a first radar scan to obtain, for at least one object (24), a first range reading, a first azimuth reading, and a first altitude reading. A second radar scan is then performed to obtain, for the at least ... | 11/27/2007 |
| 7277044 | System and method for adaptive broadcast radar system A method for transmitting a signal waveform from a transmitter within an adaptive broadcast radar system. In one embodiment, wherein the transmitter comprises at least one sub-aperture, the method includes: generating the signal waveform at the at least one sub-aper... | 10/02/2007 |
| 7271826 | Communications installation for aircraft An arrangement for audio, video and/or data communication between a ground station and an aircraft, having at least one communications channel and a monitoring device provided on board the aircraft includes at least one audio, video or flight data recording apparatu... | 09/18/2007 |
| 7256728 | Aircraft avoidance system for prohibiting an aircraft from entering an exclusion zone The present invention relates to an avoidance system and method for directing an aircraft away from an exclusion zone. The exclusion zone may be any three dimensional space for example about a building or city. The avoidance system uses a constant signal from a grou... | 08/14/2007 |
| 7248219 | Correlation of flight track data with other data sources A method of triangulating aircraft transponder signals using a number of receivers connected to a central station over communication links includes applying at least one logic rule at each receiver to incoming transponder signals to filter redundant transponder sign... | 07/24/2007 |
| 7233368 | Down-converter A down-converter for processing frequency signals, preferably received, particularly digital, television signals, comprising two, preferably identical mixer stages (10a, 10b) for down-converting the signal, a local oscillator (12) ... | 06/19/2007 |
| 7203491 | Unmanned lighter-than-air safe termination and recovery methods Innovative new methods in connection with lighter-than-air free floating platforms, of facilitating legal transmitter operation, platform flight termination when appropriate, environmentally acceptable landing, and recovery of these devices are provided. Especially,... | 04/10/2007 |
| 7203688 | Analysing tactical data link messages A method of analyzing data link messages is disclosed. These messages include a message type field and at least one message content field whose meaning is determined by the message type. The method includes storing the plurality of data link messages in a database. ... | 04/10/2007 |
| 7173526 | Apparatus and method of collecting and distributing event data to strategic security personnel and response vehicles A security and surveillance system for aircraft on the ground incorporates a plurality of strategically spaced sensors including video imaging generators, audio sensors, motion detectors, and fire and smoke detectors for monitoring critical components and critical a... | 02/06/2007 |
| 7170441 | Target localization using TDOA distributed antenna This invention is a system and method of locating a target using distributed antenna. The antenna consists of several receiving elements in known locations. At least one of the receiving elements is also a transmitter and transmits an interrogation signal to a targe... | 01/30/2007 |
| 7155337 | Method for transferring destination guidance elements, vehicle navigation device and control center A method for transferring at least one navigation element from a vehicle navigation unit to a master station. The vehicle navigation unit does not include a database sufficient for a route calculation, including an input device via which a user is able to input navi... | 12/26/2006 |
| 7136643 | Real-time programming of electronic radio system resource assets A method to efficiently implement a reconfigurable electronic radio system (400) including resource assets (402–408, 410–416, 418, 420–426, 428) and a processor (428). The processor (428) generates RF control and switching control s... | 11/14/2006 |
| 7132928 | Threat detection system interface A threat detection system interface that provides translates threat diction information into a tactile signal for a user to indicate the direction and distance of an identified threat relative to an object. The threat detection system interface having applications f... | 11/07/2006 |
| 7132982 | Method and apparatus for accurate aircraft and vehicle tracking A direct multilateration target tracking system is provided with the TOA time stamp as an input. A technique of tracking targets with varying receiver combinations is provided. Methods of correlating and combining Mode A, Mode C, and Mode S messages to enhance targe... | 11/07/2006 |
| 7126534 | Minimum safe altitude warning A ground-based CFIT warning system provides pilots with CFIT alerts. The system is based upon a ground-based tracking system, which provides surveillance of aircraft, such as the AirScene™ multilateration system manufactured by Rannoch Corporation of Alexandria, V... | 10/24/2006 |
| 7123192 | Correlation of flight track data with other data sources The surveillance system provides a means to augment Automatic Dependent Surveillance-Broadcast (ADS-B) with “look alike ADS-B” or “pseudo ADS-B” surveillance transmissions for aircraft which may not be ADS-B equipped. The system uses ground based surveillanc... | 10/17/2006 |
| 7116266 | Traffic alert and collision avoidance system enhanced surveillance system and method A traffic alert and collision and avoidance system (TCAS) is disclosed. The TCAS comprises a first transponder and a first interrogator associated with a first aircraft. The first transponder sends an interrogation request. The TCAS also comprises a second transpond... | 10/03/2006 |
| 7116963 | Simplified high frequency tuner and tuning method A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the chan... | 10/03/2006 |
