Determining Velocity Patents (Class 342/104)
  • Patent number: 8004454
    Abstract: The present invention is directed towards method, apparatus, and computer product for obtaining additional information in relation to a target in the vicinity of a mobile electronic device as well as such a mobile electronic device. The device includes a radar unit for operation in a certain frequency range including a pulse generating unit, a transmitting and receiving antenna, an echo detecting unit, a timing unit for timing the generation and transmission of pulses and providing an echo detection window for the echo detecting unit to detect echoes of said pulses when being reflected by a target, and a signal processing unit configured to process received echo pulses.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: August 23, 2011
    Assignee: Sony Ericsson Mobile Communications AB
    Inventors: Mats Eric Gustav Lindoff, Magnus Blomkvist
  • Publication number: 20110187578
    Abstract: A conductive line radar comprising at least one signal surface wave launcher, which comprises a signal surface wave transceiver, which is physically attached to a power line. The signal surface wave transceiver transmits a wave signal along the power line with another signal radiating from the wave signal in a plurality of directions along the power line. The at least one signal surface wave transceiver receives reflected signals from a target within a distance of the power line. The at least one signal surface wave launcher includes at least one RF communications transceiver and can be inductively powered from the power line.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 4, 2011
    Applicant: SENSIS CORPORATION
    Inventors: Mike FARNETH, Stephen E. McMAHON, John A. ROUGAS, Edward M. VALOVAGE, Brian EDWARD
  • Patent number: 7986261
    Abstract: A collision prediction system includes a collision face determining unit that determines a collision face of the own vehicle which is presumed to collide with another vehicle, based on a travelling direction of the other vehicle relative to the own vehicle at an estimated collision time at which a collision is presumed to occur, a collision position estimating unit that estimates a collision position as a position of a potential collision between the own vehicle and the other vehicle, based on the collision face determined by the collision face determining unit, and a collision position correcting unit that corrects the collision position estimated by the collision position estimating unit, based on a preset size of the other vehicle.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: July 26, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tomoaki Harada
  • Patent number: 7982660
    Abstract: A measuring device , e.g., a measuring device for a motor vehicle, is for measuring a distance between the measuring device and at least one object and/or measuring a difference in speed between the measuring device and the at least one object. The measuring device includes an emitting apparatus for transmitting a transmission signal encompassing at least two sequences of signal portions, a first sequence of signal portions and a second sequence of signal portions with two respective temporally alternating signal portions. The frequency of at least two signal portions of a sequence of signal portions differs by one respective difference frequency, the difference frequency of the first sequence of signal portions being different from the difference frequency of the second sequence of signal portions.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: July 19, 2011
    Assignees: Volkswagen AG, S.M.S. Smart Microwave Sensors GmbH
    Inventors: Marc-Michael Meinecke, Ralph Mende, Marc Behrens, Thanh-Binh To
  • Publication number: 20110169957
    Abstract: A method for processing an image of the exterior of a vehicle includes transmitting successive camera images from a camera to a processor. Optical flow vectors from the multiple camera images are estimated. The optical flow vectors are compared and objects located on the ground are separated from objects located above the ground. Vehicle motion is estimated. Data from the successive camera images is processed to create an estimated three-dimensional (3D) bird's eye view image, and the bird's eye view image is displayed.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 14, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Daniel James Bartz
  • Patent number: 7979200
    Abstract: Systems and methods that coordinate assignments of aircraft operating within a controlled airspace to ground radios are provided. In one embodiment, such a system includes an air traffic control (ATC) facility (12), a plurality of ground radios (16A-16C), and a network manager (20) communicatively coupled to the air traffic control facility (12) and the ground radios (16A-16C). The air traffic control facility is responsible for controlling aircraft (14A-14I) operating within the airspace (10) and providing ATC information to the network manager (20). The ground radios (16A-16C) are operable to provide communications between the air traffic control facility (12) and the aircraft (14A-14I). The network manager (20) is operable to assign each aircraft (14A-14I) to one of the ground radios (16A-16C) based on network management considerations using the ATC information.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: July 12, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: FM Bay, David E. Walton
  • Patent number: 7973701
    Abstract: A blockage detection system and method for use in a sensor such as a side object detection (SOD) sensor in an automotive radar system is described. The sensor emits signals and receives return signals (i.e. reflected signals) from a passing object. If the passing object is within a virtual detection zone, the sensor uses the information from the passing object to determine if a blockage condition exists in the sensor. The technique utilizes statistics related to the passing object to determine whether a blockage condition exists within the sensor. In one embodiment, a SOD sensor mounted in a first vehicle uses information from a second passing vehicle (e.g. radar return information) to determine whether a blockage condition exists within the SOD sensor itself.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: July 5, 2011
    Assignee: Valeo Radar Systems, Inc.
    Inventors: Stephen P. Lohmeier, Nguyen D. Nguyen
  • Publication number: 20110161090
    Abstract: A system and method for automating the processing and handling of speeding tickets and similar citations. The system acquires, stores, processes and resolves data associated with the speed detection and video capture of an incident of a vehicle breaking the speed limit. The system includes provisions for data capture, data transfer to an online database, and online plea and payment processing, including online access and electronic notification of the citizen, police and justice department. The invention thereby provides for faster processing, higher efficiency in processing, lower cost to the police and justice departments for processing tickets, and improved accuracy since less human involvement is required.
    Type: Application
    Filed: August 26, 2010
    Publication date: June 30, 2011
    Inventors: Scott K. Tilton, William Clifford Robinson, JR., Mark Darty
  • Publication number: 20110156945
    Abstract: An observation signal processing apparatus transmits pulse signals as search signals per each search, generates observation values based on reflected signals against a target and delay modulation pulse signals, and performs coherent integration on the observation values to output an integration value. The apparatus includes a section for storing a coherent integration count, a section for transmitting pulse signals equivalent to the coherent integration count, a section for calculating a phase correction amount based on an estimated relative speed, and a section for performing phase-weighted coherent integration on the observation values based on the phase correction amount.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 30, 2011
    Applicant: DENSO CORPORATION
    Inventors: Yasuyuki Miyake, Asahi Kondou, Gaku Takano
  • Patent number: 7944392
    Abstract: A method for processing received radar returns of a radiated wide-band arbitrary waveform in a wide-band radar processing system using spectral processing. The received wide-band radar returns are undersampled by using a first sampling rate to obtain an undersampled digital wide-band radar waveform. Spectral processing is performed on the power spectrum of the undersampled digital wide-band radar waveform in order to obtain a discrete ripple frequency power spectrum of the undersampled digital wide-band radar waveform. Ripple frequencies indicating radar targets are located in the discrete ripple frequency power spectrum of the undersampled digital wide-band radar waveform. A radar receiver, a digital wide-band radar processing system and a computer program product.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: May 17, 2011
    Assignee: SAAB AB
    Inventor: Kent Falk
  • Publication number: 20110102241
    Abstract: A field disturbance sensing system has an antenna, an oscillator producing a high-frequency signal, a first detector circuit, a second detector circuit, a combining network configured to couple the high-frequency signal to the antenna, and to couple the high-frequency signal and a reflected high-frequency signal to the first detector and to the second detector. An algebraic combining network sums a first detected signal having first detected high-frequency signal and a first detected reflected signal from the first detector circuit and a second detected signal having second detected high-frequency signal and a second detected reflected signal from the second detector circuit to produce a detected output signal. The first detected reflected signal is added to the second detected reflected signal and the first detected high-frequency signal is subtracted from the second detected high-frequency signal. A controller configured to convert the detected output signal to a speed between the antenna and a target.
    Type: Application
    Filed: November 2, 2009
    Publication date: May 5, 2011
    Inventors: Christopher E. Stewart, Grant E. Moulton, Steven H. Goody
  • Publication number: 20110102240
    Abstract: A method of down-converting couples a first high-frequency signal to a first detector and to a second detector. An antenna receives a signal and the received signal is provided to at least the first detector. The high-frequency signal is detected to produce a first detected signal including a first detected high-frequency signal and a demodulated signal. The high-frequency signal is concurrently detected to produce a second detected high-frequency signal. The second detected signal is subtracted from the first detected signal so as to cancel amplitude-modulated noise on a detected signal output.
    Type: Application
    Filed: November 2, 2009
    Publication date: May 5, 2011
    Inventors: Christopher E. Stewart, Grant E. Moulton, Steven H. Goody
  • Publication number: 20110102242
    Abstract: The present invention includes a transmitter/receiver 20 that transmits/receives an FMCW based sweep signal, a velocity grouping unit 36 that performs grouping of a target for each velocity range by a velocity of the target calculated based on the sweep signal from the transmitter/receiver, and a correlation tracking unit 37 that performs correlation tracking for each velocity group which is grouped by the velocity grouping unit.
    Type: Application
    Filed: March 19, 2010
    Publication date: May 5, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Shinichi Takeya, Kazuaki Kawabata, Kazuki Oosuga, Takuji Yoshida, Tomohiro Yoshida, Masato Niwa, Hideto Goto
  • Patent number: 7928897
    Abstract: A radar device includes a transmission antenna and a reception antenna having a plurality of antenna elements. The radar device switches the antenna elements in synchronization with a modulation cycle, thereby obtaining a reception signal. At this time, the radar device obtains the reception signal by switching the antenna elements using a first measurement phase and a second measurement phase having different switching cycles as one set. The radar device calculates an azimuth sine value sin ?1 from the reception signal in the first measurement phase and also calculates an azimuth sinusoidal value sin ?2 from the reception signal in the second measurement phase. Then, the radar device calculates a relative velocity V from the azimuth sine value sin ?1, the azimuth sine value sin ?2, an interval time difference ?t between switching cycles, and an inter-antenna element spacing d.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 19, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toru Ishii, Tetsu Nishimura
  • Patent number: 7925286
    Abstract: A method of estimating a Doppler maximum frequency fd and/or a local oscillator frequency offset f0, the method comprising the steps of: computing a power density spectrum of a received radio signal over a whole frequency range, scanning the computed power density spectrum to determine a frequency sub-range [fmin; fmax] which is not necessarily centered on 0 Hz, the signal power over the sub-range [fmin; fmax] being equal to a predetermined percentage of the signal power over the whole frequency range, and estimating frequency fd and/or offset f0 from frequencies fmin and fmax.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 12, 2011
    Assignee: ST-Ericsson SA
    Inventor: Pierre Demaj
  • Publication number: 20110050486
    Abstract: According to one embodiment, a Doppler radar apparatus includes a quadrature detection unit configured to quadrature-detect a received signal of a reflected pulse from an observation target, and generate time-series data including an in-phase component and a quadrature component, an interference judgment unit configured to judge whether an interference signal is mixed into the received signal based on the time-series data, a correction unit configured to correct a vector expressed by the in-phase component and the quadrature component such that variation with respect to time of a deviation angle of the vector continues when the interference judgment unit has judged that an interference signal is mixed into the received signal, and a calculation unit configured to calculate a Doppler velocity of the observation target based on an amount of variation with respect to time of the deviation angle of corrected vector.
    Type: Application
    Filed: June 23, 2010
    Publication date: March 3, 2011
    Inventors: Hiroshi ISHIZAWA, Masakazu WADA, Fumihiko MIZUTANI
  • Publication number: 20110050481
    Abstract: A signal processing device performs object detection processing in which peak signals each representing a differential frequency between a transmitted signal in which a frequency thereof changes in a predetermined cycle and a received signal are derived in a first period where the frequency of the transmitted signal rises and a second period where the frequency of the transmitted signal falls, and the peak signals in the first period are paired with the peak signals in the second period to detect object information related to the peak signals. A range setting unit sets a frequency range in each of the first period and the second period on the basis of a frequency of an integer multiple of the peak signal related to the object information which has been detected in previous object detection processing. A signal setting unit sets a peak signal as a specific peak signal in a case where the peak signal is within the frequency range in each of the first period and the second period.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 3, 2011
    Applicant: FUJITSU TEN LIMITED
    Inventors: Jun ITOH, Tokio SHINAGAWA, Daisuke NAKABAYASHI, Hiroyuki ISHIMORI
  • Patent number: 7893865
    Abstract: A vehicular lamp includes a lamp chamber formed by a lamp body opening forward and a transparent front cover attached to a forward opening portion thereof; a lamp unit disposed within the lamp chamber; a millimeter wave radar for sending a millimeter wave to reflect off of an object in order to detect a distance and a relative speed of the object; and a millimeter wave direction-changing mechanism for sending forward the millimeter wave sent by the millimeter wave radar from a back surface side of the lamp unit, without reflecting the millimeter wave on a rearward side of the lamp unit.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 22, 2011
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Kazunori Natsume, Hironori Tsukamoto, Yoshiaki Aiso
  • Patent number: 7889119
    Abstract: Radial gap measurement on turbines by a microwave measuring method and an evaluation of a Doppler effect which varies according to the size of the radial gap is described. At least one radar sensor embodied as a transmission and reception unit is provided in the wall of a turbine housing which is radially oriented towards the centre of the turbine. The relative speed of an outer end of a turbine blade, dependent on the size of the radial gap, is evaluated many times in relation to the radar sensor during the passage of the blade end past the same, and the course of the relative speed over time on the zero crossing constitutes a measure for the radial gap on the basis of the relation between the absolute value of the relative speed and the incline thereof in the zero crossing.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: February 15, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Daniel Evers, Andreas Ziroff
  • Patent number: 7890263
    Abstract: A system and method of controlling deployment of a safety device for a vehicle. The system may include a pre-impact collision assessment system, an impact detection system, and an inflatable safety device. The safety device may be partially inflated when a collision threat is detected based on a signal from the pre-impact collision assessment system. The inflatable device may be subsequently either more fully inflated or deflated.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: February 15, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Kwaku O. Prakah-Asante, Manoharprasad K. Rao
  • Publication number: 20110025550
    Abstract: A high-frequency module according to the present embodiment includes a substrate, a circuit board, and a resonator. The substrate has an input-output portion for high-frequency signals formed on one surface thereof. The circuit board includes a dielectric waveguide line with its end face exposed, and is placed on the one surface of the substrate such that a virtual plane extending beyond the end face is intersected by the one surface of the substrate. The resonator includes input-output end portions for high-frequency signals at ends thereof, in which one of the input-output end portions is connected to the end face of the dielectric waveguide line, and the other thereof is connected to the input-output portion of the substrate.
    Type: Application
    Filed: March 31, 2009
    Publication date: February 3, 2011
    Applicant: KYOCERA CORPORATION
    Inventors: Djuniadi A. Sagala, Kazuki Hayata, Yuji Kishida
  • Patent number: 7873099
    Abstract: Time is transferred from an ultra wideband (UWB) transmitter to UWB receiver by transmitting a signal structure having an associated timing reference point together with a time value for the timing reference point. The UWB receiver receives the timing signal structure by synchronizing a receiver time base to the signal structure, demodulating the time value information, and using the demodulated time value information to set a receiver clock value. Propagation delay information is used to adjust the receiver clock value by advancing the receiver clock value to account for the propagation delay. In one embodiment, propagation delay is determined from a known distance between the transmitter and receiver. In another embodiment, the transmitter and receiver are part of a two-way link wherein propagation delay is measured by round trip timing measurements.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 18, 2011
    Assignee: Time Domain Corporation
    Inventors: Larry W. Fullerton, Mark D. Roberts, James L. Richards
  • Publication number: 20110001656
    Abstract: A radar system includes: a transmission antenna outputting transmission signals having multiple frequencies; multiple reception antennas receiving reflected waves of the transmission signals, reflected from an object; a mixer mixing the transmission signals with reception signals received by the reception antennas to generate beat signals; and a signal processing unit detecting Doppler frequency by analyzing frequencies of the beat signals, detecting phase information of the Doppler frequency for each of combinations of the reception antennas and the transmission signal frequencies, constructing a matrix having the pieces of phase information arranged in a predetermined order with respect to the reception antennas and the frequencies of the transmission signals, obtaining a correlation matrix from the matrix and its complex conjugate transposed matrix, and estimating at least one of a distance, direction and relative velocity of the object based on the correlation matrix.
    Type: Application
    Filed: June 28, 2010
    Publication date: January 6, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto NAKAI, Masaru Ogawa, Tomoya Kawasaki
  • Patent number: 7864106
    Abstract: A method and system for SNR enhancement in pulse-Doppler coherent target detection for applications in the fields of radar and ultrasound. In accordance with the method of the invention, complex signals are obtained for each of two or more sub-intervals of the time-on-target interval, allowing simultaneous range and Doppler measurements. A coherent integration is the performed on the signals to generate complex-valued folded matrices. The folded matrices are unfolded and target detection is then performed in a process involving one or more of the unfolded matrices. A pulse-Doppler coherent system is also provided configured for target detection by the method of the invention.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: January 4, 2011
    Assignee: Elta Systems Ltd.
    Inventors: Ella Beilin, Jehezkel Grizim, Yacov Vagman, Alexander Lomes
  • Publication number: 20100328140
    Abstract: This invention is related to a Video-Doppler-Radar Traffic Surveillance System comprising of multiple Doppler radars and video cameras, circuitry for processing radar and video signals, and data recording and displaying devices. Although the system is mainly designed for roadside traffic surveillance, it can be used in different applications, such as mounted on a host vehicle or on a UAV. The system will provide continuous surveillance of all incoming and leaving traffic.
    Type: Application
    Filed: November 6, 2008
    Publication date: December 30, 2010
    Inventors: Lang Hong, Steven Siying Hong
  • Publication number: 20100309040
    Abstract: Methods and systems for dynamic range detection and positioning utilizing leaky wave antennas (LWAs) are disclosed and may include configuring one or more LWAs to enable communication of signals in a particular direction. RF signals that are reflected from an object may be received via the LWAs, and a location of the object may be determined based on the received reflected RF signals. The velocity of the object may be determined based on a Doppler shift associated with the received reflected RF signals. A frequency chirped signal may be transmitted by the LWAs to determine a location of the object. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. LWAs may be situated along a plurality of axes in the wireless device. The LWAs may include microstrip or coplanar waveguides, where a cavity height is dependent on spacing between conductive lines in the waveguides.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 9, 2010
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Publication number: 20100289690
    Abstract: A radar device is disclosed, which includes an antenna for transmitting an electromagnetic wave and receiving an echo signal from a target object while rotating in a horizontal plane, a display module for displaying the target object so as to correspond the echo signal to a position of the target object with respect to the antenna, a speed calculation module for calculating a relative velocity of the antenna and the target object, and a risk level detection module for detecting a risk level of the target object based on the relative velocity of the target object calculated by the speed calculation module. The speed calculation module calculates the relative velocity of the target object based on a change in phases of at least two of the echo signals received at a different time. The display module controls a display mode of the target object based on the risk level.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Applicant: FURUNO Electric Company Limited
    Inventor: Koji DAI
  • Patent number: 7825850
    Abstract: It is proposed to use the gun barrel or launcher tube or the muzzle brake as a waveguide, which, however, is operated at a frequency that is below the cutoff frequency of the relevant waveguide mode. The transmit coupler excites the relevant waveguide mode. An oscillator generates the signal, which is then sent to the transmit coupler. The waveguide and the projectile form a system in which the electromagnetic field at the receive coupler is influenced by the position of the projectile. The characteristic change over time of the strength of the electromagnetic field at the location of the receive coupler that results from the change in the distance between the projectile and the receive coupler is measured and used to determine the muzzle velocity.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: November 2, 2010
    Assignee: Oerlikon Contraves AG
    Inventor: Henry Frick
  • Patent number: 7812761
    Abstract: A DSSS (Direct Sequence Spectrum Spreading) radar has a transmitting part to transmit a transmitting signal, including a predetermined code sequence, to one or a plurality of targets, a receiving part to receive a received signal corresponding to the transmitting signal which has been reflected from the one or a plurality of targets, and a computing part. The computing part computes a sum signal and a difference signal of received signals received by the receiving part at different points in time, and obtains a Doppler frequency of the one or a plurality of targets based on a phase difference between the sum signal and the difference signal.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: October 12, 2010
    Assignee: Fujitsu Limited
    Inventor: Kazuo Shirakawa
  • Publication number: 20100245154
    Abstract: An object ranging system operates by transmitting alternating up and down frequency sweeps which have randomly distributed slopes as a result of random selection of local frequency peaks and valleys according to predetermined probability tables, and determining the beat frequency obtained when combining the transmitted signal with its reflection from an object.
    Type: Application
    Filed: June 10, 2008
    Publication date: September 30, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Wieslaw Jerzy Szajnowski
  • Publication number: 20100245155
    Abstract: The invention relates to a high-frequency transmission line connection structure, a circuit board having the connection structure, a high-frequency module having the circuit board, and a radar apparatus. A first laminated waveguide sub-line part (21) includes a pair of main conductor layers that oppose each other in a thickness direction with a dielectric layer (31) having the same thickness as a dielectric layer (31) of a microstrip line (1) interposed therebetween. A second laminated waveguide sub-line part (22) includes dielectric layers (31, 32) thicker than the dielectric layer of the first laminated waveguide sub-line part (21). A laminated waveguide main-line part (23) includes dielectric layers (31, 32, 33) thicker than the dielectric layers of the second laminated waveguide sub-line part (22). A conversion part (10) connected to the microstrip line (1) is formed by integrating with an upper main conductor layer constituting the respective line parts.
    Type: Application
    Filed: December 27, 2008
    Publication date: September 30, 2010
    Applicant: KYOCERA CORPORATION
    Inventors: Kentaro Miyazato, Kazuki Hayata, Yuji Kishida
  • Patent number: 7804440
    Abstract: A GPS enabled radar detector dynamically handles radar sources based upon previously stored geographically referenced information on such sources and data from the GPS receiver. The detector includes technology for determining the location of the detector, and comparing this location to the locations of known stationary sources, to improve the handling of such detections. The detector may ignore detections received in an area known to contain a stationary source, or may only ignore specific frequencies or may handle frequencies differently based upon historic trends of spurious police radar signals at each frequency. Notification of the driver will take on a variety of forms depending on the stored information, current operating modes, and vehicle speed.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: September 28, 2010
    Assignee: Escort Inc.
    Inventor: Steven K. Orr
  • Patent number: 7801659
    Abstract: A method and an apparatus for lane recognition for a vehicle that is equipped with an adaptive distance and speed control system are provided, the adaptive distance and speed controller having conveyed to it, using an object detection system, the relative speed of detected objects, a variable for determining the lateral offset of the detected objects with respect to the longitudinal vehicle axis, and the speed of the host vehicle. From the relative speed of the objects and the host-vehicle speed, a determination is made as to whether an object is oncoming, stationary, or moving in the same direction as the host vehicle. In combination with the calculated lateral offset of the detected object with respect to the longitudinal vehicle axis, the number of lanes present and the lane currently being traveled in by the host vehicle are determined.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: September 21, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Thilo Leineweber, Werber Urban, Ruediger-Walter Henn
  • Patent number: 7801512
    Abstract: The present invention includes systems and methods for detecting a speed limit violation based on the movement of a cell phone in a moving vehicle. The system and method determine whether a speeding violation has occurred based periodic cell phone location data, the time between a cell phone's presence at one location and the next, and the speed limit of the section of a section of road that the cell phone could be located on. Embodiments of systems and methods of the invention detect whether a moving vehicle may be part of a public transit system, in which case the corresponding cell phones are removed from consideration. The system and method also include generating a speeding ticket for a car determined to have violated a corresponding speed limit, keeping a record of a speeding violation, and sending a request to settle the ticket if it is not paid on time.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: September 21, 2010
    Assignee: Makor Issues and Rights Ltd.
    Inventor: David Myr
  • Patent number: 7791529
    Abstract: The invention relates to a method of determining an estimated speed of an aircraft relative to ground being overflown by the aircraft, in which use is made of the sum of an acceleration measurement of the aircraft plus a difference value, the difference value being obtained from observation data or signals relating to a region of the ground.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: September 7, 2010
    Assignee: Eurocopter
    Inventors: François Xavier Filias, Jean-Paul Petillon, Richard Pire
  • Patent number: 7786926
    Abstract: A radar system for motor vehicles, having a radar sensor and an evaluation device for measuring distances and relative velocities of objects in the surrounding field of the vehicle, and a collision detection device, which, on the basis of the measured distances and relative velocities, recognizes an imminent collision and delivers data on the expected time of collision and the impact velocity to a precrash system. The radar sensor is switchable by the collision detection device to a velocity measurement mode in which a more precise measurement of the relative velocity is made.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: August 31, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Joerg Hilsebecher, Herbert Olbrich, Thorsten Sohnke, Alfred Kuttenberger, Marc Theisen, Martin Randler, Michael Bunse
  • Publication number: 20100207805
    Abstract: Apparatus and method for obtaining an indication of a number of moving objects passing a speed detection apparatus. Data representing a record of speed events over a series of time frames is obtained (208, 210), each time frame including a record of zero or more distinct speeds detected during that time frame. The speed events data is analysed (604) to identify approach characteristics associated with one moving object approaching the detection apparatus. The speed events data is also analysed (606) to identify passing characteristics associated with the moving object passing the detection apparatus. A moving object count is updated (608) after detecting the approaching characteristic and the passing characteristic in sequence.
    Type: Application
    Filed: January 19, 2010
    Publication date: August 19, 2010
    Applicant: AGD SYSTEMS LIMITED
    Inventor: Simon Charles HAWORTH
  • Patent number: 7755534
    Abstract: A radar sensor receives a radar wave signal through a radome in each of antennas while judging existence of an attenuating thing in a detecting unit. This unit extracts a maximum level channel from receiving channels assigned to the antennas every modulation period, calculates a difference in signal level between the maximum level channel and each receiving channel every modulation period, sets each receiving channel corresponding to large level differences in one measuring period including plural modulation periods as a candidate channel every measuring period, increments a preliminary variable of each candidate channel every measuring period, increases a final variable each time the preliminary variable of at least one receiving channel reaches or exceeds a preliminary value in one measuring period, and judges in response to the final variable reaching a final value that the attenuating thing attenuates the radar wave directed toward the random.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: July 13, 2010
    Assignees: Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshie Samukawa, Yoshihiro Abe, Atsushi Kawakubo
  • Patent number: 7714771
    Abstract: A method and device are provided for measuring distance and relative speed of a plurality of objects with the aid of an FMCW radar, transmitted signals being reflected by objects, and the reflected signals being received and mixed with the transmitted signals. A combination of distance and relative speed values is assigned to the mixer output frequencies of each frequency ramp for each object, and the distance and relative speed of a possible object are determined from points of intersection of a plurality of distance and relative speed combinations. The apparent (unreal) objects are eliminated by modifying the frequency slope of at least one frequency ramp according to the random principle in a subsequent measurement cycle.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 11, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Lehre, Oliver Wackerl, Joerg Hilsebecher, Joachim Hauk, Martin Reiche, Martin Randler, Ruediger Jordan
  • Patent number: 7705772
    Abstract: A traffic radar utilizes digital signal processing (DSP) to determine targets based on signal strength histories. From these histories, a target vehicle having the strongest Doppler return signal is identified and its speed is displayed, and a target vehicle having the highest frequency return signal is identified and its speed is displayed. The traffic radar may also display the relative strength of the strongest return signal and the relative strength of the highest frequency return signal, thereby showing a comparison of the strengths of the return signals from the target vehicles.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: April 27, 2010
    Assignee: Kustom Signals, Inc.
    Inventor: Maurice E. Shelton
  • Patent number: 7702370
    Abstract: A system and method in which the position update rate is adaptively modified, based on previous position measurements. By adjusting the update rate based on velocity predictions from two or more position fixes, a lower update rate may be used without exceeding the maximum error. Lowering the update rate reduces power consumption in the UE, providing longer battery operation. The updating method may comprise periodically repeating the velocity prediction and periodically adjusting the update rate responsive thereto. The update rate may be adjusted using additional information such as an acceleration prediction, a minimum update rate, or a preferred error. In some embodiments a model for user movement may be used to provide more accurate predictions, for example, stationary, walking, jogging, city driving, and freeway driving. The updating method may comprise receiving user input regarding the maximum position error.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: April 20, 2010
    Assignee: QUALCOMM Incorporated
    Inventor: Charles J. Persico
  • Patent number: 7698058
    Abstract: A spatial data search method, system and apparatus for identifying particular data of significance around a reference vector through the spatial data. The method involves determining a reference vector within a spatial region for which spatial data exists, loading a portion of the spatial data including the data around the reference vector into a memory buffer, and searching the spatial data in a prioritized order. The method, system and apparatus have particular utility in searching geographic data for a terrain awareness and warning system (“TAWS”) and display in an aircraft. Embodiments of the present invention provide advantages over existing sequential and radial search methods, significantly reducing the processing and calculations required and providing faster alerts to pilots.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: April 13, 2010
    Assignee: Garmin International, Inc.
    Inventors: Susan S. Chen, Clayton E. Barber
  • Patent number: 7692572
    Abstract: A detecting and ranging apparatus and a program product obtain a correct relative velocity vector by a simple calculation based on a relative distance etc. obtained by a plurality of detectors such as a radar etc. by including: two relative distance measurement units receiving a reflected wave of a transmitted electromagnetic wave by an object to be detected, and thereby measuring a relative distance to the object to be detected, arranged at with each other different position; and an actual velocity vector calculation unit calculating an actual velocity vector of the object to be detected moving with an angle made in a direction from either relative distance measurement unit to the object to be detected based on the relative distances measured by the relative distance measurement units.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: April 6, 2010
    Assignee: Fujitsu Limited
    Inventor: Kazuo Shirakawa
  • Patent number: 7688256
    Abstract: A method of extracting a radial velocity characteristic of a target from coherent pulse bursts comprising the steps of applying to data a ‘best fit’ model of the echo returns from a target in the presence of clutter to obtain a residue (error) value and minimising the error value by a predetermined method to give the best fit value for the target radial velocity. The method enables more information to be retrieved from coherent bursts than conventional methods and therefore greatly enhances performance of radiation pulse echo detection.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: March 30, 2010
    Assignee: BAE Systems PLC
    Inventors: Derek Geoffrey Finch, Anthony Michael Deakin
  • Patent number: 7688255
    Abstract: An electronic scanning radar apparatus has a cutting portion for cutting receiving data which is comprised of N numbers of data for each channel into two more short time data having M (<N) numbers of data in a time direction for each channel, an inverse matrix estimator for computing and estimating an inverse matrix of the time series correlation matrix from the short time data, and a phase information producing portion for computing CAPON phase information out of the estimated inverse matrix of the time series correlation matrix in order to detect a distance, an azimuth and a relative speed of a target on the basis of a computed CAPON phase information.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 30, 2010
    Assignee: Denso Corporation
    Inventors: Koichiro Suzuki, Chiharu Yamano, Gaku Takano, Kazuma Natsume
  • Patent number: 7688252
    Abstract: In a radar system, harmonic excitation of an antenna is carried out in different frequency ranges. The antenna characteristic which varies as a function thereof is used to analyze different solid angle ranges around an object.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: March 30, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Voigtländer, Matthias Karl
  • Patent number: 7688251
    Abstract: Systems and methods are described for monitoring the surface flow velocity and volume discharge of rivers and channels using a VHF/UHF radar located in operative relationship with a riverbank. This frequency region allows precise estimation and removal of the Bragg wave velocity; it also is matched to the short wind-wave roughness periods existing on river surfaces so that operation is possible nearly all the time. Methods of bearing determination are also disclosed. Up/downriver surface velocity profiles vs. distance across the river may be constructed from maps of the radial velocity component from a single radar at thousands of points within the radar's coverage. Methods to compensate for Doppler aliasing under high flow conditions are also shown.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: March 30, 2010
    Assignee: CODAR Ocean Sensors, Ltd
    Inventors: Donald E. Barrick, Calvin C. Teague, Peter M. Lilleboe
  • Patent number: 7684921
    Abstract: The present invention can realize a vehicle running control apparatus including ACC function and map information data recording medium to obtain effective information for safety driving capable for running control meeting a driver's feeling. The first running speed is decided on the basis of the distance between the vehicles and the relative speed. The position detecting means detects the position of own vehicle on a map. The map information getting means gets road information, the width of the road, the radius of curvature, and slope on the basis of the map information. The visible distance estimating means estimates the visible distance on the basis of the map information, deciding the second running safety speed with the estimated visible distance. The running control means decides the object running speed of smallest one of the set speed, the first running speed, and the second running speed.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: March 23, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Takao Kojima, Tokuji Yoshikawa, Kazuhiko Satou, Satoru Kuragaki, Shiho Izumi, Toshimichi Minowa
  • Patent number: 7679547
    Abstract: Disclosed is a microwave direction of travel detector and method of doing the same. The microwave direction of travel detector comprising, a microwave transceiver for transmitting and receiving a microwave signal directed toward a protected area for outputting a Doppler signal when a moving target is detected, an amplifier chain including one or more amplifiers coupled to the microwave transceiver for receiving and amplifying the Doppler signal from the microwave transceiver, wherein at least one amplifier having variable gain and; a controller for sampling an output gain of each variable gain amplifier and for controlling each variable gain amplifier by adjusting a gain of each variable gain amplifier to keep the Doppler signal level constant and to avoid saturation of each said variable gain amplifier. If the output gains of each variable gain amplifier is increasing or decreasing the controller indicates a direction of travel.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: March 16, 2010
    Assignee: Honeywell International Inc.
    Inventors: Xiaodong Wu, Leslie K. Green, James N. Helland
  • Patent number: RE41153
    Abstract: A field unit for warning of a danger of collision between an aircraft and an obstacle, in particular a topographical ground obstacle or an obstacle formed by a mast, building or aerial cable structure, comprises a multi-part tubular mast having devices for fixing a solar panel and a radar antenna; an elongate radar antenna in an environment-protective casing, which, with an electronics unit, forms a radar system for synthesized radar detection of an aircraft in a radar coverage area; a central processing unit for identifying on the basis of information from the radar system an aircraft which is in a zone of the radar coverage area and which on the basis of radar information such as direction, distance and/or speed computes a collision danger area; and a high-intensity light system and radio transmitter system that can be activated by the central processing unit upon detection of an aircraft in a collision danger area.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: March 2, 2010
    Assignee: OCAS AS
    Inventors: Morten Mork, Rolf Bakken