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| Number | Title | Issue Date |
| 7623221 | Apparatus for and method of determining distance Apparatus for determining distance comprising a transmitting unit for emitting a light pulse, a receiver matrix having at least one photoelectric element and a control unit, wherein the receiver matrix has a first and a second integrator which are connected to the p... | 11/24/2009 |
| 7362420 | Entangled-photons range finding system and method A method of determining a distance to an object is presented. A first photon and a second photon are simultaneously generated. The first photon is reflected off an object. The second photon is directed to an optical cavity. An arrival of the first photon is correlat... | 04/22/2008 |
| 7352167 | Digital trigger An improved digital trigger circuit has a plurality of data samples extracted from an input electrical signal for each sample clock cycle. The plurality of data samples are compared in parallel with a high threshold level and a low threshold level which provides hys... | 04/01/2008 |
| 7342649 | Handheld survey documentation system A handheld computer which is connectable to an optoelectronic distance measuring device in an integrated manner so as to communicate bidirectionally therewith or connectable via a data interface, includes a computing device, an input device, and a display suitable f... | 03/11/2008 |
| 7324218 | Method and device for distance measurement The present invention relates to a device (10) for distance measurement, with at least one transmitting branch (14) with a transmission source (22, 24) for a measurement signal for emitting a modulated measuring beam (16, 26, 36) in the d... | 01/29/2008 |
| 7304727 | Laser distance-measuring device A laser distance-measuring device includes a laser-transmitting portion, a laser-receiving portion, a coupling portion, an inclination-measuring portion, a signal-processing portion, and a display. The laser-transmitting portion emits a laser beam, and the laser-rec... | 12/04/2007 |
| 7295290 | Coherent laser radar To obtain a coherent laser radar device that realizes high reliability and the high output of a transmitted light, the device includes a first optical coupler that branches a laser beam from a laser source into two lights, a local light and a transmitted light, an o... | 11/13/2007 |
| 7248343 | Amplitude-weighted spatial coherent processing for LADAR system A laser radar (LADAR) system is provided with amplitude-weighted spatial coherent processing. An amplitude-weighted sum of time domain signals arising from several detectors within a detector array is formed and used for range doppler processing. Weighting coefficie... | 07/24/2007 |
| 7219759 | Manual operation device for operating in-vehicle apparatus An operation member is manually operable to select and drive an in-vehicle apparatus. A compression spring applies counterforce to the operation member against operational movement of the operation member. A load sensor senses an operational work load of a driver of... | 05/22/2007 |
| 7215413 | Chirped synthetic wave laser radar apparatus and methods Chirped synthetic wave laser radar apparatus and methods are disclosed. In one embodiment, a system includes a laser source, a controller operatively coupled to the laser source and adapted to frequency-modulate first and second laser outputs, and an optical assembl... | 05/08/2007 |
| 7212278 | Method and device for recording a three-dimensional distance-measuring image The invention relates to methods and devices for recording three-dimensional distance-measuring images of an object surface by measuring light propagation time using a short-term integrated photodetector. For starting a light-induced pulse on the transmission side, ... | 05/01/2007 |
| 7209871 | Prediction of cavity size in the packed bed systems using new correlations and mathematical model It has been reported in the literature that raceway measurement made during the decreasing gas velocity is relevant to operating blast furnaces. However, no raceway correlation is available either for decreasing or increasing gas velocity which is developed based on... | 04/24/2007 |
| 7199867 | Anti-interference speed detection methods and detectors thereof A speed detection method is implemented in a speed detector comprising a range finder. First, a specific number of distance measurement samples of an object are acquired during a period of time utilizing the range finder. The distance measurement samples are convert... | 04/03/2007 |
| 7126675 | Pulse shifted array A laser-radar receiver comprising an array of optical fibers, wherein the opposite ends of the optical fibers are connected to at least one electromagnetic radiation detector, each of the optical fibers having differing physical characteristics which result in known... | 10/24/2006 |
| 7106422 | Rangefinder and measuring method A Rangefinder capable of long and short distance measurement in company with compass measurement. The rangefinder includes distance measurement unit, a compass sensing unit and a processor. The rangefinder can selectively execute a comparison mode or a gain mode. Th... | 09/12/2006 |
| 7107144 | Non-intrusive traffic monitoring system A traffic monitoring system including a non-intrusive lane monitor is provided. The lane monitor comprises one or more laser channels, a user interface, and a programmable controller in communication with the laser channels and the user interface. In accordance with... | 09/12/2006 |
| 7079974 | System and method for detecting an object using pulsed light A system and method for detecting an object is provided. The method includes emitting a light pulse. The method further includes receiving a reflection of the light pulse. The method further includes indicating a presence of the object from the received light pulse.... | 07/18/2006 |
| 7009690 | Three-dimensional measurement device and three-dimensional measurement method The purpose of the present invention is to realize a compact three-dimensional measurement device of high resolution. In the present invention, a pulse light is projected on an object, the light reflected from the object is received by a solid state area sensor havi... | 03/07/2006 |
| 7006203 | Video guidance sensor system with integrated rangefinding A video guidance sensor system for use, e.g., in automated docking of a chase vehicle with a target vehicle. The system includes an integrated rangefinder sub-system that uses time of flight measurements to measure range. The rangefinder sub-system includes a pair o... | 02/28/2006 |
| 6993255 | Method and apparatus for providing adaptive illumination An illumination system (20, 72, 110, 142) for illuminating a scene comprising: an illuminator (24, 74, 116) having a plurality of substantially contiguous independently controllable light (26, 76) providing regions each of which provides light t... | 01/31/2006 |
| 6956522 | Pulse radar system A pulse radar system has a high-frequency source, which supplies a continuous high-frequency signal and is connected on the one side to a transmission-side pulse modulator and on the other side to at least one mixer in at least one receive path. A pulse modulator is... | 10/18/2005 |
| 6917415 | Method of and apparatus for electro-optical distance measurement A method of and an apparatus for an electro-optical distance measurement in which a laser beam of a laser diode (1) is directed as an intensity modulated train of emitted light pulses onto an object, the reflected measurement pulse train (10) is detect... | 07/12/2005 |
| 6829043 | Distance measurement device with short distance optics Technology is disclosed for measuring distances. A measurement device emits a beam that reflects on the surface of an object. The measurement device determines the distance to the object, based on the time of flight of the beam from transmission to capture by the me... | 12/07/2004 |
| 6665057 | Method for distance measurement for vehicles by measuring transit time of laser pulses A method of distance measurement for vehicles by transit time measurement of laser pulses employs a distance sensor including a transmitter (11) having a pulse generator (1A) for the generation of a laser pulse (L), and a receiver (12) having a transit ti... | 12/16/2003 |
| 6586748 | Non-invasive water current measurement system and method A method and system are provided for measuring water current direction and magnitude. A plurality of beams of radiation are transmitted radially outward from a location above a body of water. Each beam is incident on the water's surface at an angle with r... | 07/01/2003 |
| 6252655 | Distance measuring apparatus The present invention relates to a distance measuring apparatus which computes the distance from the apparatus to a target by measuring a period of time from when pulse light is emitted toward the target until a reflected component from the target is rece... | 06/26/2001 |
| 6226076 | Distance measuring apparatus using pulse light The present invention relates to a distance measuring apparatus and method having a structure enabling highly accurate distance measurement. In particular, the distance measuring apparatus according to the present invention comprises at least a measuremen... | 05/01/2001 |
| 6023323 | Laser beam type distance measuring device A laser beam type distance measuring device comprising a laser beam emitter; a laser beam receiver having a going laser beam sensor and a returning laser beam sensor; an electrical signal processing circuit connected to the going and returning laser beam ... | 02/08/2000 |
| 5870180 | Time measurement device and method useful in a laser range camera A time measurement device useful with laser range cameras and time-of-flight measuring methods includes a light transmitter responsive to start and stop signals for transmitting the light during a time interval to be measured, and a light receiver for rec... | 02/09/1999 |
| 5719664 | Telemetry device having a microlaser This laser telemetry device operating on the principle of the measurement of the transit time of a light pulse, is characterized in that it comprises: a passive switching microlaser (2), means (6, 10) for receiving a light pulse (18, 19) reflected by an object... | 02/17/1998 |
| 5633706 | Optical distance measurement apparatus and method An optical distance measurement apparatus comprises a system controller for controlling the entire operation of a system, a light emitting circuit for emitting a high-power pulse light beam as a distance measuring medium to an object in response to a driv... | 05/27/1997 |
| 5623334 | Optical distance measurement apparatus and method using cleaning device Optical distance measurement apparatus and method. The apparatus comprises a light emitting circuit, a light receiving circuit, a trigger signal generation circuit, a pollution sensor, a diode abnormal state sensor, a control/time-distance conversion circ... | 04/22/1997 |
| 5504577 | Method and apparatus for measuring meteorological visibility and scattering of light, said apparatus utilizing common optics for transmission and reception The invention concerns a method and device for measuring the meteorological visibility and the scattering of light. A light pulse is emitted into the atmosphere via an optical transmit system, the backscattered light returns via the optical transmit syste... | 04/02/1996 |
| 5489982 | Method for determining a visual range A method for determining the visual range improves the visual range measurement adopted as a basis, to the end that the measurement of the visual range can take place using one emitter and using one receiver, which are disposed to be stationary. The metho... | 02/06/1996 |
| 5359404 | Laser-based speed measuring device A laser speed detector is described which includes a laser rangefinder which determines the time-of-flight of an infrared laser pulse to a target and a microprocessor-based microcontroller. The device is small enough to be easily hand-held, and includes a... | 10/25/1994 |
| 5291262 | Laser surveying instrument A laser survey instrument is described which includes a laser rangefinder which determines the time-of-flight of an infrared laser pulse to a target, a magnetic compass module which produces an electronically readable compass signal, a vertical angle sens... | 03/01/1994 |
| 5225882 | Moving body measuring apparatus A moving body measuring apparatus which can measure a distance and/or an azimuth angle to a moving body using a laser beam in a minimized measuring cycle with a simplified scanning mechanism under a minimized influence of a disturbance of the background l... | 07/06/1993 |
| 5223908 | Measurement of blast furnace raceway parameters A blast furnace with a blowpipe (12) opening through the furnace wall (11) has apparatus for analysis (20) in a raceway (18) adjacent the blowpipe opening in a bed of the blast furnace. The apparatus includes means (24) arranged in relation to the blast f... | 06/29/1993 |
| 5206697 | Tunable laser rangefinder and method A tunable laser rangefinder having a wavelength tunable transmitter output and a wavelength tunable receiver that matches the transmitter wavelength. The transmitter provides laser energy output pulses that are reflected off a target and received by the r... | 04/27/1993 |
| 5153664 | Telemetric process and apparatus The invention relates to time of flight telemetry and has application to detection and imaging systems. Determination takes place of a response time of an optoelectronic measuring chain or cascade (20, 34, 36) able to measure an outward and return time (f... | 10/06/1992 |
