| HOKUYO AUTOMATIC CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 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 |
