Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7876261 | Reflected wave clock synchronization A radar system has a phased-array antenna and plural local oscillators for controlling local transmit/receive units. The local oscillators are slaved to a master oscillator. The analog clock signal paths are subject to relative changes in electrical length. The elec... | 01/25/2011 |
| 7397420 | Timing adjustment method for radar, and radar apparatus having automatic timing adjusting function On/off timing of an amplifier and timing of antenna selection are accurately adjusted. When adjusting the on/off timing of the amplifier, modulation of a transmit signal is stopped, and a switch is set so as not to select any one of the antennas, thereby totally ref... | 07/08/2008 |
| 7325172 | Failsafe RLC reset method for a wireless communication system Embodiments of the present invention relate to a method. The method includes synchronizing a first device and a second device. If the first device and the second device both initiate the synchronizing at substantially the same time, then the first device and/or the ... | 01/29/2008 |
| 7295152 | Timing adjustment method for radar, and radar apparatus having automatic timing adjusting function On/off timing of an amplifier and timing of antenna selection are accurately adjusted. When adjusting the on/off timing of the amplifier, modulation of a transmit signal is stopped, and a switch is set so as not to select any one of the antennas, thereby totally ref... | 11/13/2007 |
| 7289541 | Method for locating and tracking communication units in a synchronous wireless communication system A method for locating and tracking communication units in a synchronous wireless communication system allows for system synchronization and communication unit location when usable GPS signals are not available or are being jammed. Communication units communicate wit... | 10/30/2007 |
| 7286080 | High-frequency transmitting/receiving apparatus, radar system having the same, and vehicle and small boat equipped with the radar system Provided is a millimeter-wave transmitting/receiving apparatus of pulse-modulation type in which pulse-modulated millimeter-wave signals for transmission are prevented from being outputted to a reception system due to inner reflection or other causes. Included are: ... | 10/23/2007 |
| 7259713 | Ranging systems A continuous wave ranging system, comprising a modulator 2 for modulating an r.f. carrier wave in accordance with a pseudo random code, a transmitting antenna 5 for radiating the modulated signal towards a target, a receiving antenna 6 and recei... | 08/21/2007 |
| 7254401 | Network-based method and system for determining a location of user equipment in CDMA networks A method and system for determining a location of a user equipment using RTT measurements from a connected node B and RTT measurement of other node Bs which are not connected to the user equipment. The radio network controller of a network measures RTT of a connecte... | 08/07/2007 |
| 7248208 | Methods and systems for maintaining a position during hovering operations A method for maintaining a position of a hovering vehicle that incorporates a radar altimeter is described. The method includes receiving signals at the radar altimeter based on a change of horizontal direction, operating the radar altimeter to generate a Doppler fr... | 07/24/2007 |
| 7242345 | Method for controlling a radar antenna A method is described for detecting an object with target radar. After the first detection of an object, the antenna is tilted. The original direction towards the object is restored by electronically steering the emitted beam. The beamsteering is obtained by changin... | 07/10/2007 |
| 7239264 | Radar transponder Transponders, receivers and position determining systems are described. In one embodiment, a transponder includes (i) an on-board receiver and associated receiving antenna for receiving incoming radar pulses in a first frequency band at an unknown pulse repetition r... | 07/03/2007 |
| 7221308 | Joint stars embedded data link A system comprises a radar for producing a radar interrogation signal, a transponder for receiving the radar interrogation signal and producing a transponder signal including a first linear frequency modulated pulse having an increasing frequency and a second linear... | 05/22/2007 |
| 7218272 | Reducing antenna boresight error Reducing antenna boresight error includes receiving radar pulses reflected from the ground, where pulses are emitted from the antenna of a radar system, reflected by the ground, and received by the antenna. The return pulses carry information about the ground. Measu... | 05/15/2007 |
| 7084807 | Method and apparatus for generating HF signals for determining a distance and/or a speed of an object The present invention provides a method for generating HF signals for determining a distance and/or a speed of an object, having the following steps: generating a pulsed demodulated signal (6′) from a first signal (3) and a second signal (4) i... | 08/01/2006 |
| 7075477 | Radar A radar includes a transmission signal processing system, a reception signal processing system, an auxiliary signal processing system, a transmission-signal input unit, and a search determination unit. The transmission signal processing system transmits a transmissi... | 07/11/2006 |
| 7071868 | Radar detection method and apparatus A radar system and method use a radar FMCW chirp having variable chirp characteristics. ... | 07/04/2006 |
| 7068215 | Reducing antenna boresight error Reducing antenna boresight error includes receiving radar pulses reflected from the ground, where pulses are emitted from the antenna of a radar system, reflected by the ground, and received by the antenna. The return pulses carry information about the ground. Measu... | 06/27/2006 |
| 7053818 | Method for simple and multipurpose tracking A method for measuring distance and relative speed between two points, one of which is stationary. The method employs a radio signal modulating a periodic pulse train sent from stationary point to a movable point and simultaneously being retransmitted back to the st... | 05/30/2006 |
| 6989784 | Transmission-reception apparatus and operation determination method thereof A transmission-reception apparatus includes a transmission section, a reception section, a transmission control section, a signal detection section, and an operation determination section. The transmission section transmits a signal to a surrounding space. The recep... | 01/24/2006 |
| 6982634 | Method and apparatus for reducing blind spots in obstacle detection A method and apparatus for reducing blind spot in obstacle detection as a vehicle moves in reverse relate to widening the transmission angle on two sets of ultrasonic transducers located at the rear of the vehicle. Signal transmission and reception of these two tran... | 01/03/2006 |
| 6963548 | Coherent synchronization of code division multiple access signals A novel method and apparatus is described for reducing the number of CDMA codes for a constellation of multiple trasponder platforms serving a number of subscribers in the same service area. A coherent processing technique synchronizes the phase of CDMA signals arri... | 11/08/2005 |
| 6894634 | System and method for detecting emitter signals A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. Data is provided that specifies one or more emitters or emitter types desired for detection. An algorithm eval... | 05/17/2005 |
| 6894635 | System and method for correction of discontinuities in an antenna model A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. When revisit times are computed for each receiver detecting method for an emitter, these revisit times may not... | 05/17/2005 |
| 6873284 | System and method for non-maximum dwell duration selection for use in detecting emitter signals A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. Typically, the minimum dwell duration of a dwell is the maximum pulse repetition interval (PRI) of the emitter... | 03/29/2005 |
| 6697011 | Doppler radar device A doppler radar device having comparing means 142 for comparing the level of pulse signal to be transmitted, sampled through a burst gate, with a predetermined threshold value and search means 143 for changing a set position of the gate, wherein a timing ... | 02/24/2004 |
| 6650274 | Radar imaging system and method An imaging system and method. The invention provides an intra-pulse repetition interval (PRI) agile beam technique for enhanced resolution that can be used at aspect angles near the velocity vector of a host vehicle. It is particularly useful at small sca... | 11/18/2003 |
| 6452536 | Antenna system A method for scheduling radar transmissions for a phased array antenna system having at least two antenna faces, in which each respective antenna face is configured to receive echoes of possible targets corresponding to previous radar transmissions by the... | 09/17/2002 |
| 6272446 | System and a method for measuring a continuous signal A system, and method of operating the system, for measuring a continuous signal, having at least two transducers for measuring the continuous signal and for each outputting a signal relating to the measured signal. The transducers receive controlling sign... | 08/07/2001 |
| 6201819 | Process for transmitting data packets from mobile stations to base stations in mobile radio systems operated on the time multiplex system A process for the transmission of data packets from mobile stations to base stations in mobile radio systems operated by the time-division multiplex method where an effective utilization of resources and a reduced amount of signalling is achieved in the t... | 03/13/2001 |
| 6064331 | Pulse repetition frequency section method and system The objectives of the invention are met by an improved radar tracking system and a process of radar tracking. In the improved system and process, an estimate of a target range and a range uncertainity swath from a first radar system is inputted into a sec... | 05/16/2000 |
| 5973636 | Radar apparatus with a simplified construction A single antenna is used so that time-division transmission and reception is carried out in a radar apparatus for obtaining a distance and a relative speed with respect to a target object based on a beat signal obtained by transmitting a frequency modulat... | 10/26/1999 |
| 5907301 | Procedure and device for the control of a radar unit A procedure and a device for controlling, in a radar unit for the measurement of target data, the transmission of radar pulses and the reception of target echoes originating from the transmitted radar pulses, in such a way that the performance of the rada... | 05/25/1999 |
| 5831569 | Method and apparatus for injecting synthetic pulses for increased transmitter stability An apparatus and method for improving stability in a transmitter receiving a staggered pulse train includes maintaining a constant temperature of the transmitter at the start of each pulse of the pulse train. Such maintenance may be accomplished by insert... | 11/03/1998 |
| 5095312 | Impulse transmitter and quantum detection radar system Pulses of short duration are radiated by an impulse radar transmitter wit time domain intervals under control of a clock to monitor a moving target from which echo pulses are reflected. The echo pulses received are measured by a quantum detector in terms... | 03/10/1992 |
| 4942403 | Phased-array radar A phased-array radar capable of electronically directing a directional beam of an antenna in any of N different directions, i.e., direction θ1 to direction θN. Scanning of the directional beam is effected in any of a long-range mod... | 07/17/1990 |
| 4912473 | Radar equipment A radar equipment comprising a display unit (FIG. 1) and a scanning unit (FIG. 2) linked together by electrical conductors (94,72,106,26) for the transmission of information and/or control signals between the units, and circuitry (90,98; 66,69; 102,108; a... | 03/27/1990 |
| 4746922 | Method of and device for removing range ambiguity in a pulse-doppler radar and radar including such a device This invention relates to a method of and a device for removing range ambiguity in a pulse Doppler radar and to a radar including such a device especially for missile guidance. On tracking operation at a high pulse repetition frequency the method consists... | 05/24/1988 |
| 4710774 | Aircraft collision avoidance system A communication system particularly adapted for use in an aircraft collision avoidance system wherein the transmitted portions of messages exchanged between aircraft consist of pulses or pairs of pulses at the beginning and end of a message. The data or i... | 12/01/1987 |
| 4668950 | Encoding apparatus and method for a position coded pulse communication system Pulse position coding is used to transmit several channels of data from a ground radar transmitter to a receiver in an airborne, remotely-piloted vehicle. The system is designed to ignore interfering pulses, especially those which are synchronized with th... | 05/26/1987 |
| 4654665 | Radar system A radar system comprises means for forming a transmission pulse signal as m sets of n pulses, the individual sets having respective PRPs Ti (i=1, 2, . . . , m) moving target detection means, and angle measurement means utilizing beam-to-beam amplitude com... | 03/31/1987 |
