HOKUYO AUTOMATIC CO., LTD. Patent applications |
Patent application number | Title | Published |
20140151535 | DEFLECTOR, OPTICAL SCANNER, AND SCANNING DISTANCE MEASURING EQUIPMENT - Scanning distance measuring equipment includes a light emitter/receiver and a deflector for deflecting and reflecting measurement light emitted from the light emitter/receiver to outside through an optical window. The deflector is provided with a first deflection mechanism including a movable unit swingable about a first axis and a drive unit for driving to swing the movable unit; a second deflection mechanism for driving to rotate the first deflection mechanism about a second axis perpendicular to the first axis; and a contactless power supply unit including a second coil that is located to rotate about the second axis along with the rotating second deflection mechanism, and a first coil that is located to face the second coil on a common axis. | 06-05-2014 |
20140132187 | METAL ELASTIC MEMBER, MINIATURE MACHINE, METHOD OF MANUFACTURING MINIATURE MACHINE, SWING CONTROL DEVICE AND SWING CONTROL METHOD - A metal elastic member to be used for beams | 05-15-2014 |
20130346019 | SIGNAL PROCESSING DEVICE OF SCANNING-TYPE DISTANCE MEASUREMENT DEVICE, SIGNAL PROCESSING METHOD, AND SCANNING-TYPE DISTANCE MEASUREMENT DEVICE - A signal processing device of a scanning-type distance measurement device includes: a distance calculation unit for, on the basis of a predetermined correlation relationship between measured light and reflection light, calculating, for each predetermined scan angle, the distance from the scanning-type distance measurement device to an object; a to-be-monitored object determination unit for performing a to-be-monitored object determination process, in which, when the distance calculation unit calculates a distance within a to-be-monitored region for N number of scans (N is an integer equal to or greater than 2) consecutively in a specific scan angle direction, it is determined that there is an object to be monitored in the specific scan angle direction; and a signal output unit which, when it is determined by the to-be-monitored object determination unit that there is an object to be monitored, outputs a to-be-monitored object detection signal. | 12-26-2013 |
20130156419 | OPTICAL DATA TRANSMISSION DEVICE, OPTICAL COMMUNICATION DEVICE, AND AUTOMATIC CONVEYANCE DEVICE - Reliable data transmission is secured without inviting large design changes by means of configuring an optical data transmission device in a manner so as to be provided with: data conversion units and optical communication control units that transmit to each of a first communication unit and a second communication unit disposed movably relative to one another an optical signal modulated in response to wired-line data input from a wired line, and that output wired-line data demodulated from the received optical signal to the wired line; a bit data input unit that receives input of bit data for emergency stops; a bit data output unit that outputs bit data for emergency stops; and bit data communication control units that control in a manner so as to transmit/receive input bit data via the optical communication control units using optical signals that are isolated from the optical signal corresponding to the wired-line data. | 06-20-2013 |
20110246116 | SIGNAL PROCESSING APPARATUS USED FOR OPERATIONS FOR RANGE FINDING AND SCANNING RANGEFINDER - A signal processing apparatus includes a differential processing unit to differentiate a reflection signal corresponding to a pulse measurement beam that is periodically scanned in a polarized manner; an arithmetic unit to obtain, with a rising time of a first-order-differential reflection signal as a reference, a barycentric position of the first order differential reflection signal as a detection time of a reflected beam, and to calculate a distance to a measured object based on a time difference between an output time of the measurement beam and the detection time of the reflected beam; and a waveform determining unit to determine whether the reflected beam includes a plurality of overlapping reflected beams from a plurality of measured objects, based on rising and falling characteristics of the first-order-differential reflection signal and based on a rising characteristic of a second-order-differential reflection signal obtained by the second order differential of the reflection signal. | 10-06-2011 |
20110235018 | SCANNING-TYPE DISTANCE MEASURING APPARATUS - A scanning-type distance measuring apparatus includes: an optical system | 09-29-2011 |
20110002694 | OPTICAL DATA TRANSMISSION APPARATUS - An optical data transmission apparatus is provided, in which a first communication unit | 01-06-2011 |