Camera Patents (Class 342/66)
-
Patent number: 10018726Abstract: Methods and systems for performing three dimensional LIDAR measurements with a highly integrated LIDAR measurement device are described herein. In one aspect, the illumination source, detector, and illumination drive are integrated onto a single printed circuit board. In addition, in some embodiments, the associated control and signal conditioning electronics are also integrated onto the common printed circuit board. Furthermore, in some embodiments, the illumination drive and the illumination source are integrated onto a common Gallium Nitride substrate that is independently packaged and attached to the printed circuit board. In another aspect, the illumination light emitted from the illumination source and the return light directed toward the detector share a common optical path within the integrated LIDAR measurement device. In some embodiments, the return light is separated from the illumination light by a beam splitter.Type: GrantFiled: January 31, 2017Date of Patent: July 10, 2018Assignee: Velodyne Lidar, Inc.Inventors: David S. Hall, Pieter J. Kerstens, Mathew Noel Rekow
-
Patent number: 8928527Abstract: Systems and methods for reducing error detection latency in LPV approaches are provided. In certain embodiments, a method for navigational guidance includes calibrating inertial measurements acquired from an inertial navigation system with satellite-based augmentation system position measurements acquired from a satellite-based augmentation system to create corrected inertial navigation system positions. The method also includes determining whether the satellite-based augmentation system experienced a fault when the inertial measurements were calibrated with the satellite-based augmentation system position measurements. Further, when the satellite-based augmentation system did not experience a fault, the method includes monitoring the satellite-based augmentation system navigation position measurements based on the corrected inertial navigation system positions.Type: GrantFiled: March 19, 2013Date of Patent: January 6, 2015Assignee: Honeywell International Inc.Inventors: Gang He, Ivan Sandy Wyatt
-
Publication number: 20140266858Abstract: A method for detecting a traffic violation in a traffic light zone through rear end measurement by a FMCW radar device (1). A specific position (sP1) assigned to the front of a vehicle (3) and the radial velocity are derived from the measurement signal obtained at a first measurement time (t1), and a first anticipated position (eP1) for the front of the vehicle is calculated by the distance-time rule at the second measurement time (t2) by means of the time period between the first measurement time (t1) and the second measurement time (t2). Through repeated calculation of an anticipated position for the front of the vehicle at further measurement times, an anticipated time when the front of the vehicle crosses a stop line (5) defining the traffic light zone is predicted iteratively with the determined vehicle velocity.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: JENOPTIK Robot GmbHInventor: Oliver Blanke
-
Publication number: 20140176360Abstract: The invention is directed to a method and an arrangement for detecting a traffic violation in a traffic light zone through rear end measurement by a FMCW radar device. For this purpose, a vehicle driving through a radar beam of a FMCW radar device, whose first outer edge beam horizontally forms an obtuse angle with the roadway edge, is measured at its front end, flank and rear end. The vehicle length is determined from the obtained measurement signals and added to the specific radial distance of the vehicle, which is determined close to a stop line through the vehicle rear, and a prediction is made based on the vehicle speed about the vehicle front driving over the stop line.Type: ApplicationFiled: December 20, 2013Publication date: June 26, 2014Applicant: JENOPTIK Robot GmbHInventor: Michael LEHNING
-
Patent number: 8686326Abstract: In certain aspects, this invention is a “control system” that detects and minimizes (or otherwise optimizes) an angle between vehicle centerline (or other reference axis) and vehicle velocity vector—as for JDAM penetration. Preferably detection is exclusively by optical flow (which herein encompasses sonic and other imaging), without data influence by navigation. In other aspects, the invention is a “guidance system”, with optical-flow subsystem to detect an angle between the vehicle velocity vector and line of sight to a destination—either a desired or an undesired destination. Here, vehicle trajectory is adjusted in response to detected angle, for optimum angle, e.g. to either home in on a desired destination or avoid an undesired destination (or rendezvous), and follow a path that's ideal for the particular mission—preferably by controlling an autopilot or applying information from navigation.Type: GrantFiled: March 25, 2009Date of Patent: April 1, 2014Assignee: Arete AssociatesInventors: John C. Dennison, David C. Campion
-
Patent number: 8606972Abstract: A cable identification system is provided. The cable identification system includes a cable having a plurality of conductors with an electrical connector on at least one end of the cable. The electrical connector is adapted to connect all conductors in the cable to a mating connector. The cable identification system further includes a signal generator connectable between the electrical connector and the mating connector on a network device. The signal generator includes a controller configured to measure and analyze parameters indicative of data traffic in the cable. The cable identification system further includes a cable sleeve adapted to receive the cable therein and coupled to the electrical connector. The cable sleeve has one or more segments which are electrically activatable to change an appearance based on a signal sent by the electrical connector in response to the measurements of the parameters indicative of traffic in the cable.Type: GrantFiled: November 30, 2011Date of Patent: December 10, 2013Assignee: International Business Machines CorporationInventors: Tamer E. Abuelsaad, John E. Moore, Jr., Rajeshkumar N. Singi, Robert R. Wentworth
-
Patent number: 8519883Abstract: A motion detector system includes the ability to detect motion through the use of a Doppler radar sensor or a combination of PIR sensors and a Doppler radar sensor. The system includes an outdoor light fixture having one or more lamps and a housing coupled to the outdoor light fixture. The housing includes a Doppler radar sensor and a microprocessor for analyzing the signals received by the Doppler radar sensor. Alternatively, the housing includes a combination of PIR sensors and a Doppler radar sensor and a microprocessor for analyzing the signals received from these sensors. The lamps in the light fixture are activated when either the PIR sensor or the Doppler radar sensor generates a signal indicating motion within the monitored area. Alternatively, the lamps can be activated when either the PIR sensor or the Doppler radar sensor senses predetermined number of motion activities over a limited time period.Type: GrantFiled: July 30, 2012Date of Patent: August 27, 2013Assignee: Cooper Technologies CompanyInventors: George Michael Drake, Ryan Crist, Tyler Fleig, Milton Dallas, Scott Kroeger, Norm Siegel, Charlie Ketelhohn
-
Patent number: 8384583Abstract: A synthetic-aperture radar system, and related operating method, for the monitoring of ground and structure movements, particularly suitable for emergency conditions, characterized by a ground based platform with polarimetric capabilities, that able to quickly acquire, embeddedly process and post-process data by a novel data acquisition “On the Fly” mode of operation, reducing by at least an order of magnitude the data acquisition time. The inventive system characteristics allows to achieve on-field measurement results on three-dimensional maps georeferenced to absolute coordinate systems (WGS84, Gauss-Boaga, and so on).Type: GrantFiled: June 7, 2010Date of Patent: February 26, 2013Assignee: Ellegi S.R.L.Inventors: Davide Leva, Carlo Rivolta
-
Patent number: 8373590Abstract: The invention relates to a method of processing an image sensed by an image sensor on board an aircraft fitted with an obstacle-locator system, in which the position and the extent of a zone in the sensed image, referred to as the zone of interest, is determined as a function of obstacle location data delivered by the obstacle-locator system, after which at least one parameter for modifying the brightness of points/pixels in said zone of interest is determined to enable the contrast to be increased in said zone of interest, and as a function of said modification parameter, the brightness of at least a portion of the image is modified.Type: GrantFiled: December 21, 2007Date of Patent: February 12, 2013Assignee: EurocopterInventor: Richard Edgard Claude Piré
-
Patent number: 8368586Abstract: A system includes a multi-system approach to detecting concealed weapons and person borne improvised explosive devices (PBIED). A first and second radar system operate at different center frequencies to provide, respectively, isolation of a target of interest from clutter and fine detail information on the target, such as whether the target is a living person, whether a concealed object may be present, material composition of the object, and shape, size, and position of the target relative to the system. Circular polarized radar beam may be used to distinguish a suspect object from within a crowd of people. Radar image of the object may be overlaid on visual image of a person carrying the object. Radar tracking of the object is coordinated with visual tracking of the target provided by a camera system, with visual display and tracking of the target overlaid with the radar information.Type: GrantFiled: August 6, 2010Date of Patent: February 5, 2013Assignee: Tialinx, Inc.Inventors: Farrokh Mohamadi, Mikko Oijala, Mohsen Zolghadri, Paul Strauch
-
Patent number: 8321070Abstract: In order to target and intercept a desired object within a number of objects detected in an environment, detection data is received from two different sensors, where the detection data includes spatial coordinates. A set of four-point subsets (tetrahedra) are selected from each set of spatial coordinates. A number of correlation maps are determined between the first set of spatial coordinates and the second set of spatial coordinates based on the plurality of four-point subsets. The mean sphericity for each corresponding plurality of four-point subsets in the plurality of correlation maps is determined, and a threat object map based on the correlation map having the greatest mean sphericity is created. The desired object is targeted based on the correlation map.Type: GrantFiled: May 18, 2009Date of Patent: November 27, 2012Assignee: Raytheon CompanyInventor: Steven J. Manson
-
Patent number: 8115670Abstract: A method of measuring the speed of a vehicle wherein the speed and the distance of the vehicle from a radar system and/or the measuring angle of the vehicle relative to the radar axis is determined by means of a radar measurement so as to characterize or determine the vehicle lane of the vehicle by means of the distance and/or the measuring angle. Knowledge of the vehicle lane makes it possible to unequivocally identify the detected vehicle in a group of vehicles unequivocally.Type: GrantFiled: May 9, 2008Date of Patent: February 14, 2012Assignee: Robot Visual Systems GmbHInventors: Christoph Klein, Andreas Behrens, Bernhard Dohmann, Norbert Terlau
-
Patent number: 8112225Abstract: A method for collision avoidance for a host vehicle includes the following steps; receiving input data relating to a set of objects external to the host vehicle, wherein an object position (r,?), and an object velocity ({dot over (r)}) are associated with each object by a sensor system arranged on the host vehicle, then estimating future trajectories of each external object, while considering influence by the future trajectories of the other external objects.Type: GrantFiled: November 29, 2010Date of Patent: February 7, 2012Assignee: Volvo Car CorporationInventors: Andreas Eidehall, Jochen Pohl
-
Patent number: 8098545Abstract: The present invention relates to an underwater guidance system for guiding an underwater apparatus, for example an underwater vehicle, towards a target structure, such as a docking station. The system comprises at least one system for capturing or sensing information on the relative position of the apparatus and the target structure and/or at least one imaging system for capturing an image of the target structure and a transmitter for wireless electromagnetic transmission of data indicative of the position information and/or captured image to the underwater apparatus or an underwater apparatus controller.Type: GrantFiled: February 6, 2009Date of Patent: January 17, 2012Assignee: WFS Technologies Ltd.Inventors: Mark Rhodes, Brendan Hyland
-
Patent number: 7706978Abstract: A method for estimating unknown parameters (pan angle (?), instantaneous tilt angle (?) and road geometry of an upcoming road segment) for a vehicle object detection system. The vehicle object detection system is preferably a forward looking, radar-cued vision system having a camera, a radar sensor and an processing unit. The method first estimates the pan angle (?), then corrects the coordinates from a radar track so that pan angle (?) can be treated as zero, and finally solves a least squares problem that determines best estimates for instantaneous tilt angle (?) and road geometry. Estimating these parameters enables the vehicle object detection system to identify, interpret and locate objects in a more accurate and efficient manner.Type: GrantFiled: September 2, 2005Date of Patent: April 27, 2010Assignee: Delphi Technologies, Inc.Inventors: Jan K. Schiffmann, David A. Schwartz
-
Publication number: 20080218401Abstract: A digital camera for providing a short burst of global navigation satellite system (GNSS) signal samples in a picture data file with an approximate time for reading by a computer apparatus some time later for determining the geographical location and an accurate time of the picture. An apparatus and method for determining a GNSS position of an event where an event capture device writes a short burst of GNSS signal samples with an approximate time into an event data file and a GNSS sample processor reads the event data file some time later for determining the geographical location and an accurate time of the event.Type: ApplicationFiled: March 8, 2007Publication date: September 11, 2008Inventors: Peter Van Wyck Loomis, Carl Jacob Norda
-
Patent number: 7358889Abstract: An object detection system is provided with radar detection means (2), image detection means (3), and collating means (4).Type: GrantFiled: September 9, 2004Date of Patent: April 15, 2008Assignee: Toyota Jidosha Kabushiki KaishiInventors: Kyoichi Abe, Setsuo Tokoro, Koji Suzuki
-
Patent number: 7190306Abstract: The invention relates to a method for detecting the passage by a vehicle of a determined point for monitoring on a road, wherein from a remotely situated location a radar beam is transmitted continuously to the point for monitoring, reflections from the transmitted radar beam are received at the remotely situated location, and it is determined from the received reflections that the vehicle is passing the point for monitoring. The radar beam can herein be transmitted at an acute angle to the travel direction of the passing vehicle. The detection can be used to activate a red-light camera, to measure the speed of the vehicle or measure the traffic intensity, without sensors, for instance induction loops, having to be arranged in the road for this purpose.Type: GrantFiled: February 18, 2005Date of Patent: March 13, 2007Assignee: Gatsometer B.V.Inventor: Theodorus Maria Janssen
-
Patent number: 7068210Abstract: A position-adaptive radar method and device for small UAV platforms capable of detecting “leakage signals” that, for example, propagate between two buildings or “leak through” penetrable surfaces such as walls or layers of the ground. The position-adaptive radar comprises a monostatic radar receiver that measures and processes leakage signals and then “self adapts” in position to establish line-of-sight between a mini-UAV platform and an obscuration channel that propagates the leakage signal. This allows a mini-UAV platform to process signals in real-time while gathering intelligence information and locating objects-of-interest that may be embedded within an obscuration channel.Type: GrantFiled: February 25, 2005Date of Patent: June 27, 2006Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Atindra K. Mitra, Krishna Pasala
-
Patent number: 6970103Abstract: An event detection and storage system comprising: a vehicle detection device connected to an input vehicle, a traffic sign red light detector, a registered vehicles monitoring array, a control module that manipulates an infraction film in association with the registered vehicles monitoring array, a video capture device that supplies images to the control module, and reception device connected to the radar, an excess speed alert device, and a semaphore control connected to an output port, the system being configured in such manner that during the operation thereof there is generated the film such that when an event occurs, there is obtained a film of the moments that preceded the event, during the event and after the event. The invention also discloses an event detection method using the above system.Type: GrantFiled: April 4, 2002Date of Patent: November 29, 2005Inventor: Persio Walter Bortolotto
-
Publication number: 20020186148Abstract: A device for identifying vehicles traveling in excess of a predetermined speed. The device including: speed measurement detector for measuring the speed of a target vehicle and outputting a signal indicative of the measured speed; a camera operatively connected to the speed measurement detector for capturing image data of a license plate affixed to the target vehicle when the target vehicle exceeds the predetermined speed; and a device for tagging the captured image data with the signal indicative of the measured speed of the target vehicle. The device can further have a recognition system for recognizing the license plate of the target vehicle which controls the camera to provide an enhanced view of the license plate. The device can also have classification and color identification systems for identifying a type and color of the target vehicle. The type and color information can also be tagged to the image data.Type: ApplicationFiled: June 12, 2001Publication date: December 12, 2002Applicant: Koninklijke Philips Electronics N.V.Inventors: Miroslav Trajkovic, Srinivas Gutta, Antonio J. Colmenarez
-
Patent number: 6463369Abstract: In accordance with a vehicle running condition along a lane and an actual steering angle, a control unit determine a target steering angle to follow the lane, and controls an actual steering torque with an actuator to a target steering torque to achieve the target steering angle. The control unit limits the target steering torque by setting a target torque limit determined in accordance with a sensed longitudinal acceleration of the vehicle.Type: GrantFiled: June 7, 2001Date of Patent: October 8, 2002Assignee: Nissan Motor Co., Ltd.Inventors: On Sadano, Hiroshi Kawazoe, Masayasu Shimakage
-
Patent number: 6422508Abstract: A robotically controlled steerable gimbal mounted virtual broadband hyperspectral sensor system and methods provide a highly mobile, rapidly responsive and innovative system of locating targets and exploiting hyperspectral and ultraspectral imaging and non-imaging signature information in real-time from an aircraft or ground vehicles from overhead or standoff perspective in order to discriminate and identify unique spectral characteristics of the target. The system preferably has one or more mechanically integrated hyperspectral sensors installed on a gimbal backbone and co-boresighted with a similarly optional mounted color video camera and optional LASER within an aerodynamically stable pod shell constructed for three-dimensional stabilization and pointing of the sensor on a direct overhead or off-nadir basis.Type: GrantFiled: April 5, 2000Date of Patent: July 23, 2002Assignee: Galileo Group, Inc.Inventor: Donald Michael Barnes
-
Patent number: 6318667Abstract: A winged bomb is launched from a launch aircraft and glides to a target. During the glide the winged bomb follows a calculated guide path stored in a on board computer, with correction generated by the computer using data from an altimeter and global positioning receiver. Near the termination of the glide a television camera is activated and transmits signals to a remote location from which final correction are manually generated and transmitted by radio to the bomb. The bomb is designed with low radar cross section.Type: GrantFiled: March 29, 2000Date of Patent: November 20, 2001Inventor: Raymond C. Morton
-
Patent number: 6211809Abstract: A passive millimeter-wave imaging system (10) that includes a millimeter-wave camera (12) positioned at the end of an aircraft landing strip (14) to provide an image (20) of the aircraft (16) approaching the landing strip (14) along a landing glidepath (18). The camera (12) broadcasts the image (20) of the aircraft (16) approaching the landing strip (14) to the aircraft (16) and to a control tower (24). With this information, the pilot of the aircraft (16) sees his aircraft's position relative to the glidepath (18), and can make landing adjustments accordingly. Likewise, the tower personnel can monitor the aircraft landing glidepath (18) to insure that the aircraft (16) maintain a safe distance relative to the ground.Type: GrantFiled: September 1, 1998Date of Patent: April 3, 2001Assignee: TRW Inc.Inventor: Gerald J. Stiles
-
Patent number: 6115651Abstract: A large vehicle blind spot monitor is provided including a vehicle having a rear face, a front face, and an interior driver compartment with a steering wheel and dashboard. At least one camera unit includes a camera for generating a real time continues video image only during the actuation thereof. Associated therewith is a detector for generating an activation signal only upon the detection of a person. At least one screen is mounted to the dash of the vehicle and connected to the camera unit for displaying the video image upon the receipt thereof. An alarm is provided for generating an alarm upon the receipt of the activation signal. Finally, a control mechanism is adapted to transmit the activation signal to the alarm upon the receipt thereof and further actuate each camera unit only upon the receipt of the activation signal from the camera unit thus allowing a driver to view a blindspot.Type: GrantFiled: January 15, 1998Date of Patent: September 5, 2000Inventor: Diogenes J. Cruz
-
Patent number: 6115667Abstract: A method for acquiring map information, a method of navigation, a method for providing area information, a navigation apparatus and an area information providing apparatus in which a predetermined broadcasting signal transmitted from a transmitting station, which is different at every area, is received by a receiver where map information at every area, which is included in the received broadcasting signal, is extracted by a map information extractor unit, and the map of an area, to which a present position belongs, is displayed on a display unit based on the extracted map information.Type: GrantFiled: March 19, 1999Date of Patent: September 5, 2000Assignee: Sony CorporationInventor: Jin Nakamura
-
Patent number: 5948038Abstract: A traffic violation processing method is disclosed, which includes the steps of monitoring a vehicle; determining whether the vehicle is in violation of a traffic violation and recording the image of the vehicle on a camera when the vehicle is determined to have violated a traffic violation; providing a digital image of the vehicle; recording and storing deployment data corresponding to the violation, wherein the deployment data includes an identifier associated with the traffic violation; assigning the identifier to the digital traffic image; storing the digital image of the vehicle, together with the identifier, on a storage medium; matching the deployment data with the stored digital image by correlating or matching the identifier associated with the deployment data with the identifier associated with the stored digital image; and generating a traffic document that includes the stored digital image and the deployment data.Type: GrantFiled: July 31, 1996Date of Patent: September 7, 1999Assignee: American Traffic Systems, Inc.Inventors: James P. Daly, Clint A. Davis, James D. Tuton
-
Patent number: 5935190Abstract: A traffic monitoring system has a common housing for a Doppler radar transceiver, a video camera, and a digital computer for processing the Doppler signal. The system also includes a video cassette recorder, a high-speed photographic camera, and a laptop computer for downloading control settings and a program from a diskette or memory card to the digital computer. The digital computer performs an initial self-test by injecting a calibration signal in lieu of a Doppler signal into an electronic interface between the radar transceiver and the digital computer. The radar transceiver generates a Doppler signal having two channels, and the phase between the channels indicates whether a vehicle is approaching or receding from the radar transceiver. The two channels are recorded on the left and right audio channels of the video cassette.Type: GrantFiled: November 5, 1997Date of Patent: August 10, 1999Assignee: American Traffic Systems, Inc.Inventors: Clint A. Davis, Gary L. Mee
-
Patent number: 5912822Abstract: Frequency domain processing is used to determine rapidly whether false signals are present, and to improve the accuracy of speed measurements by rejecting speed measurements that could be inaccurate due to the presence of false signals. A Doppler signal responsive to speed of a moving vehicle is generated by a Doppler radar transceiver. A digital computer transforms the Doppler signal into a frequency domain signal such as an energy spectrum, and the speed of the moving vehicle is computed from the weighted arithmetic mean of the energy spectrum. The mean value, however, is rejected as an indication of speed if the variance of the energy spectrum from the mean exceeds a threshold, or if a differential of the spectrum with respect to frequency exceeds a threshold.Type: GrantFiled: October 15, 1996Date of Patent: June 15, 1999Assignee: American Traffic Systems, Inc.Inventors: Clint A. Davis, Gary L. Mee
-
Patent number: 5483865Abstract: The present invention relates to a sighting system for an aircraft, in particular a rotary wing aircraft such as a helicopter. According to the invention, the sighting system comprises, in combination, an observation first individual apparatus integrated in the sides of the aircraft, and an axial fire second individual apparatus integrated at the front of aircraft, said first and second apparatuses being connected to the onboard computer of the aircraft.Type: GrantFiled: May 2, 1994Date of Patent: January 16, 1996Assignee: Eurocopter FranceInventor: Jacques Brunand
-
Patent number: 5381156Abstract: The present invention is a Multiple Target Doppler Tracker which tracks a plurality of components, including debris and submunitions of a munition burst apart above the ground. A plurality of transmitters transmits constant frequency (CW) signals towards the burst event of the munition and a plurality of receivers receive the signals reflected from the components. The signals received by the receivers are processed into frequency spectra. The spectra are analyzed to determine the path of a selected number of components. Using the path information the selected components are tracked with tracking devices.Type: GrantFiled: April 15, 1993Date of Patent: January 10, 1995Assignee: Calspan CorporationInventors: Ditmar H. Bock, Marjorie A. Rude, Frederick W. Kiefer
-
Patent number: 5381155Abstract: A method of traffic control is disclosed which includes the steps of measuring the speed of a vehicle, automatically reading the license plate of the vehicle, automatically, in a computer system, matching the license plate number to information about the owner of the vehicle, and displaying the name of the owner of the vehicle.Type: GrantFiled: June 9, 1994Date of Patent: January 10, 1995Inventor: Eliot S. Gerber
-
Patent number: 5214408Abstract: A distance detecting apparatus enables the driver of a vehicle to readily and concurrently recognize the location and direction of each of a plurality of objects present in the driver's field of view, in daylight or darkness, and at the same time determine whether each of the objects is an obstacle to the vehicle travel. The objects sensed by a pair of first and second image sensors 3, 4 are displayed on a screen 11 in a plurality of windows 15-19. Deviations between the images of the objects within the respective windows are electrically detected so that the distance to an object within each window is individually calculated based on the deviations. Obstacles to the travel of the vehicle can be discriminated on the basis of the positions of the windows on the screen and the distances to the objects in the respective windows as detected.Type: GrantFiled: October 24, 1991Date of Patent: May 25, 1993Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Yoshiaki Asayama
-
Patent number: 4866438Abstract: With a traffic monitoring device for photographic recording of vehicles exceeding a predetermined speed, the speed of the approaching traffic is measured substantially against the travelling direction. The vehicles (12) are photographed frontally when they exceed the predetermined speed. Two speed measurements are effected: A first measuring value is obtained in a relatively short part of the available measuring section (22) on the entrance side and serves to release a camera (18). A second measuring value evaluates all speed measuring values occuring in the measuring section (22), in which the vehicle (12) is detected by the radar beam (20). This second measuring value is recorded.Type: GrantFiled: March 23, 1988Date of Patent: September 12, 1989Assignee: Robot Foto und Electronic GmbH & Co. KGInventor: Konrad Knisch
-
Patent number: 4717915Abstract: Vehicles are measured and photographed from the direction in which they are travelling by a Doppler radar speed measuring device equipped with a camera. During a measuring stage after the vehicle enters the radar beam, a measured speed value is determined and when this exceeds a specific limit value, the camera is triggered. The Doppler signal for checking the measured speed value is then further evaluated over a verification distance. If the measured speed value is confirmed then it is printed on the photograph at the end of the verification distance, if it has not been confirmed, then a cancellation indicator is printed. The film is then advanced and the detection of the entry of another vehicle is awaited. As a result of this checking of the measured speed value, the measuring reliability when registering oncoming vehicles is substantially increased and overtaking in particular can be detected in the range of the radar beam.Type: GrantFiled: November 22, 1985Date of Patent: January 5, 1988Assignee: Zellweger Uster Ltd.Inventor: Simon Goede