121 |
Method and device for signal period stretch and ultra-fast serial-to-parallel/parallel-to-serial conversion |
US13515995 |
2011-11-02 |
US10031998B2 |
2018-07-24 |
Shi Dong |
Disclosed are a method and a device for signal period stretch and ultra-fast serial-to-parallel/parallel-to-serial conversion, which relate to the technical field of analysis and measurement control. The method is to change a propagation velocity of a target signal or displacement-reflecting the target signal, so as to extend or compress the period of the signal. Displacement-reflection is to generate a Doppler shift through interaction of the displacement of a reflecting plate with the target signal, so as to achieve period stretch; for a signal transmitted through a medium, the propagation velocity of the target signal is changed by changing the property of the medium, so as to achieve period stretch; for a signal ascribed to an electron flow, the movement velocity of the electron beam is changed through a varying acceleration field, so as to achieve period stretch. A target signal condensing/diffusing and collimating lens, a synchronous signal controller and a plurality of period stretch devices are utilized to achieve ultra-fast serial-to-parallel/parallel-to-serial signal conversion. Thereby, a device that originally cannot work at the frequency spectrum of the target signal is enabled to observe, transmit and parse content of the original target signal. |
122 |
OBSERVATION DEVICE HAVING AN EYE-CONTROLLED LASER RANGEFINDER |
US15832068 |
2017-12-05 |
US20180180734A1 |
2018-06-28 |
Daniel Kunz |
The invention pertains to a hand-held observation device (1) for observing distant targets, comprising at least a first optical observation channel (20) defining a first observation optical axis (40) by receiving and imaging optical light rays onto an image plane for observations of a user, a first eyepiece being arranged at the first optical observation channel (20), and a laser range finder for determining, along an axis (3A) of the laser range finder, a distance between the observation device (1) and a target, the laser range finder being adapted to emit a laser beam through a laser emission channel (31) and receive a reflection of the laser beam through a laser receiver channel (30), characterized by at least one light source (27A, 27B) that is adapted to emit light, particularly infrared light, to illuminate a user's eye at the first eyepiece, an image sensor (25) that is adapted to capture images of the eye, and comprises an electronic image processing unit (24) for determining, in real-time, eye parameters that indicate a gazing direction of the user, and at least one opto-mechanical alignment unit (23A, 23B) that is adapted to deflect the laser beam in the laser emission channel (31) and the beam reflection in the laser receiver channel (30), the at least one opto-mechanical alignment unit comprising at least one mirror, at least one actuator that is adapted to move the at least one mirror, and alignment circuitry for controlling the at least one actuator to move the at least one mirror depending on the eye parameters to emit the laser beam onto a target in the gazing direction of the user. |
123 |
Methods, devices, and systems for improving dynamic range of signal receiver |
US13802593 |
2013-03-13 |
US09304203B1 |
2016-04-05 |
Pierre-Yves Droz; Gaetan Pennecot; Daniel Gruver |
Methods, devices, and systems that may help improve the dynamic range of a signal receiver. The method includes (i) causing a signal emitter to emit a signal during a first period of time; (ii) receiving, at the signal receiver, a reflected signal during a second period of time, where the received reflected signal corresponds to the emitted signal, and where the second period of time begins after a beginning of the first period of time; and (iii) increasing a signal gain that is applied to the received reflected signal during a third period of time, where the third period of time begins not earlier than a beginning of the second period of time. |
124 |
Contactless power transmission structure of laser distance measuring device |
US13425176 |
2012-03-20 |
US09106093B2 |
2015-08-11 |
Wei Hsu |
A contactless power transmission structure of a laser distance measuring device, comprising: a first circuit board, disposed on a rotation disk on an upper portion of a main axis, and on said first circuit board is provided with a laser light tube and a lens; a second circuit board disposed at an end of said main axis; a third circuit board, fixed on a bottom seat and is not rotatable; two signal receivers and two signal transmitters, to transmit signals to said laser light tube and said lens, and receive signals sent from said laser light tube and said lens; a motor, located on a side of said main axis, is connected to said main axis through a conveyer belt to make it rotate, and that brings said rotation disk to rotate; and a power structure, connected electrically and supplies power to said first, second, and third circuit board. |
125 |
Time of Flight Sensor Binning |
US13792431 |
2013-03-11 |
US20140253688A1 |
2014-09-11 |
Werner Adam Metz; Dong-IK Ko |
A time-of-flight sensor device generates and analyzes a high-resolution depth map frame from a high-resolution image to determine a mode of operation for the time-of-flight sensor and an illuminator and to control the time-of-flight sensor and illuminator according to the mode of operation. A binned depth map frame can be created from a binned image from the time-of-flight sensor and combined with the high-resolution depth map frame to create a compensated depth map frame. |
126 |
LASER TRACKER USED WITH SIX DEGREE-OF-FREEDOM PROBE HAVING SEPARABLE SPHERICAL RETROREFLECTOR |
US13453002 |
2012-04-23 |
US20130155386A1 |
2013-06-20 |
Robert E. Bridges |
A method for measuring three-dimensional coordinates of a probe center includes: providing a spherically mounted retroreflector; providing a probe assembly; providing an orientation sensor; providing a coordinate measurement device; placing the spherically mounted retroreflector on the probe head; directing the first beam of light from the coordinate measurement device to the spherically mounted retroreflector; measuring the first distance; measuring the first angle of rotation; measuring the second angle of rotation; measuring the three orientational degrees of freedom based at least in part on information provided by the orientation sensor; calculating the three-dimensional coordinates of the probe center based at least in part on the first distance, the first angle of rotation, the second angle of rotation, and the three orientational degrees of freedom; and storing the three-dimensional coordinates of the probe center. |
127 |
Target apparatus and method of making a measurement with the target apparatus |
US13407983 |
2012-02-29 |
US08467072B2 |
2013-06-18 |
Peter G. Cramer; Robert E. Bridges; Nils P. Steffensen; Robert C. Mehler; Kenneth Steffey; John M. Hoffer, Jr.; Daniel G. Lasley |
A target includes a contact element having a region of spherical curvature, a retroreflector rigidly connected to the contact element, a transmitter configured to emit an electromagnetic signal, a temperature sensor disposed on the target, configured to measure an air temperature, and configured to send the measured air temperature to the transmitter. |
128 |
Apparatus and method for pattern-based configuration of optical sensing systems |
US12580469 |
2009-10-16 |
US08300284B2 |
2012-10-30 |
Adam Sowul; Alejandro Ruiz Sanchez |
According to a method and apparatus taught herein, an optical sensor uses pattern recognition in its optical detection processing to “see” detection patterns that correspond to predefined configuration settings. In one embodiment, for example, an optical sensing system selects an operational configuration by detecting a pattern embodied in received light data and comparing the detected pattern to one or more internally stored patterns. Each stored pattern represents a different operational configuration of the optical sensing system. If the detected pattern matches one of the stored patterns, the optical sensing system adopts the operational configuration corresponding to the matched stored pattern. Further, in one or more embodiments, the optical sensing system enters a configuration mode by an external stimulus, e.g., responsive to a configuration mode input, and the aforementioned pattern detection-based configuration selection is enabled only while in the configuration mode. |
129 |
LASER DIODE BASED MULTIPLE-BEAM LASER SPOT IMAGING SYSTEM FOR CHARACTERIZATION OF VEHICLE DYNAMICS |
US13318153 |
2010-04-19 |
US20120044477A1 |
2012-02-23 |
Meng Han |
The invention is related to a laser diode based multiple beam laser spot imaging system for characterization of vehicle dynamics. A laser diode based, preferably VCSEL based laser imaging system is utilized to characterize the vehicle dynamics. One or more laser beams are directed to the road surface. A compact imaging system including an imaging matrix sensor such as a CCD or CMOS camera measures locations or separations of individual laser spots. Loading status of vehicles and vehicles' pitch and roll angle can be characterized by analyzing the change of laser spot locations or separations. |
130 |
Laser rangefinder with a voice control function |
US12540509 |
2009-08-13 |
US07903237B1 |
2011-03-08 |
Nen-Tsua Li |
A laser rangefinder with a voice control function has a housing, a voice sensor module, a measure module, a circuit board and a display module. The housing has a voice-receiving hole and a screen. The voice sensor module receives voice commands through the voice-receiving hole. The measure module produces and emits a laser beam toward an object and then receives the laser beam reflected from the object. The circuit board judges the voice command sent by the voice sensor module to activate the measure module for calculating and determining a distance between the laser rangefinder and the object based by a time interval of the laser beam traveling toward and returning from the object. The display module shows a determined result on the screen. |
131 |
LASER RANGEFINDER WITH A VOICE CONTROL FUNCTION |
US12540509 |
2009-08-13 |
US20110037968A1 |
2011-02-17 |
Nen-Tsua LI |
A laser rangefinder with a voice control function has a housing, a voice sensor module, a measure module, a circuit board and a display module. The housing has a voice-receiving hole and a screen. The voice sensor module receives voice commands through the voice-receiving hole. The measure module produces and emits a laser beam toward an object and then receives the laser beam reflected from the object. The circuit board judges the voice command sent by the voice sensor module to activate the measure module for calculating and determining a distance between the laser rangefinder and the object based by a time interval of the laser beam traveling toward and returning from the object. The display module shows a determined result on the screen. |
132 |
Distance measurement method and device and vehicle equipped with said device |
US12186848 |
2008-08-06 |
US07812931B2 |
2010-10-12 |
Hidekazu Nishiuchi |
A method for measuring the distance of an object is provided that includes irradiating a plurality of light beams having predetermined wavelengths and then in a first round, picking up an image under irradiation of the plurality of light beams and in another round picking up the image without irradiation using a camera. The difference of the image between the first and other round is fed to an observation region part and to an irradiation angle computing part and then the distance to the object is computed. |
133 |
Method and System for Determination of Detection Probability or a Target Object Based on a Range |
US12414769 |
2009-03-31 |
US20100250189A1 |
2010-09-30 |
Jerry G. Brown |
A simulation system for predicting a likelihood of whether a target object positioned in an environment will be detected by a detection system when illuminated by a laser source. The simulation system may be used for a laser rangefinder application and a laser designator application. The simulation system may provide a detection probability of the target object at a specified range to the detection system or a plurality of detection probabilities as a function of the range to the detection system. The simulation system may provide an indication of an overlap of the beam provided by the laser source on the target object. The simulation system may determine the effect of vibration on the detection of the target object at a specified range. |
134 |
Volumetric error compensation system with laser tracker and active target |
US12654911 |
2010-01-08 |
US20100176270A1 |
2010-07-15 |
Kam C. Lau; Yuanqun Liu; Guixiu Qiao; Liangyun Xie |
A volumetric error compensation measurement system and method are disclosed wherein a laser tracker tracks an active target as the reference point. The active target has an optical retroreflector mounted at the center of two motorized gimbals to provide full 360 degree azimuth rotation of the retroreflector. A position sensitive detector is placed behind an aperture provided at the apex of the retroreflector to detect the relative orientation between the tracker laser beam and the retroreflector by measuring a small portion of the laser beam transmitted through the aperture. The detector's output is used as the feedback for the servo motors to drive the gimbals to maintain the retroreflector facing the tracker laser beam at all times. The gimbals are designed and the position of the retroreflector controlled such that the laser tracker always tracks to a pre-defined single point in the active target, which does not move in space when the gimbals and/or the retroreflector makes pure rotations. Special mechanism and alignment algorithm are used in the gimbal design and retroreflector centering alignment to achieve accurate rotational axis alignment and repeatability. |
135 |
Apparatus and Method for Pattern-Based Configuration of Optical Sensing Systems |
US12580469 |
2009-10-16 |
US20100097665A1 |
2010-04-22 |
Adam Sowul; Alejandro Ruiz Sanchez |
According to a method and apparatus taught herein, an optical sensor uses pattern recognition in its optical detection processing to “see” detection patterns that correspond to predefined configuration settings. In one embodiment, for example, an optical sensing system selects an operational configuration by detecting a pattern embodied in received light data and comparing the detected pattern to one or more internally stored patterns. Each stored pattern represents a different operational configuration of the optical sensing system. If the detected pattern matches one of the stored patterns, the optical sensing system adopts the operational configuration corresponding to the matched stored pattern. Further, in one or more embodiments, the optical sensing system enters a configuration mode by an external stimulus, e.g., responsive to a configuration mode input, and the aforementioned pattern detection-based configuration selection is enabled only while in the configuration mode. |
136 |
User-worn rangefinder system and methods |
US12125850 |
2008-05-22 |
US07675609B2 |
2010-03-09 |
Thomas Hinchliff; Michael Pfau |
Embodiments of an arm-worn rangefinder device includes a rangefinder body and a switch. The rangefinder body is shaped for coupling to a user's arm and has an electronic rangefinder circuit operable to emit an energy beam directed at a selected target, to receive a reflected beam from the target, and to calculate the target's approximate range based on properties of the reflected beam and indicate the calculated approximate range to the user. The switch is coupled to the rangefinder body, and the user can use the switch to selectively actuate the rangefinder circuit. |
137 |
User-worn rangefinder system and methods |
US11282207 |
2005-11-18 |
US07394528B2 |
2008-07-01 |
Thomas Hinchliff; Michael Pfau |
Embodiments of an arm-worn rangefinder device includes a rangefinder body and a switch. The rangefinder body is shaped for coupling to a user's arm and has an electronic rangefinder circuit operable to emit an energy beam directed at a selected target, to receive a reflected beam from the target, and to calculate the target's approximate range based on properties of the reflected beam and indicate the calculated approximate range to the user. The switch is coupled to the rangefinder body, and the user can use the switch to selectively actuate the rangefinder circuit. |
138 |
Laser distance-measuring device |
US11289244 |
2005-11-29 |
US07304727B2 |
2007-12-04 |
Pie-Yau Chien; Hua-Tang Liu; Hui-Qing Chen; Shou-Qing Yang; Hai-Hua Chen; Liang Li; Han Lu; Peng-Fei Song |
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-receiving portion receives the laser beam. The coupling portion interconnects the laser-receiving portion and the signal-processing portion. The inclination-measuring portion detects an inclination angle of the laser beam. The signal-processing portion processes the signals received from the laser-receiving portion and the inclination-measuring portion and sends the result to the display. The display receives and displays the result of processing by the signal-processing portion. |
139 |
Coordinate tracking system, apparatus and method of use |
US11182392 |
2005-07-15 |
US07285793B2 |
2007-10-23 |
Ernie Husted |
A system enables indirect determination of a position vector (VR) of a point position (P). The system uses two fixed trackers (10 and 10′) whose absolute positions are known. A movable measuring device (20) provides a rigid rod (25) supporting a pair of reflectors (30 and 30′) which are mounted at fixed positions. A reference point (R) is mounted at a further fixed position on the rod (25) and is on a straight line (L) through the reflectors (30 and 30′). Light beams from the trackers (10 and 10′) acquire the reflectors (30 and 30′) so that when the reference point (R) is positioned at the point position (P), the position vector (VR) of point position (P) is determinate by vector addition. |
140 |
Flagstick with integrated reflectors for use with a laser range finder |
US11339417 |
2006-01-25 |
US20070171394A1 |
2007-07-26 |
Daniel Steiner; Rob O'Loughlin; Wayne Timberman; Michael Plitman |
A system is provided for determining a distance to a target. In an exemplary embodiment, the system includes a pole and a distance measuring device. The pole includes a plurality of sockets formed in a surface of the pole above a selected lower reflecting point and a reflector mounted in each of the plurality of sockets. The lower reflecting point defines a minimum distance from a first end of the pole above which the reflectors are located for use with the distance measuring device. At least a portion of a signal received from the distance measuring device is reflected back to the distance measuring device by a receiving reflector. The distance measuring device includes a transmitter that transmits the signal at a first time, a receptor that receives the reflected signal from the receiving reflector at a second time, and a processor to determine the distance from the transmitter to the receiving reflector using the first time and the second time. |