公开(公告)号：US20200292667A1

公开(公告)日：2020-09-17

申请号：US16806007

申请日：2020-03-02

申请人： YUUTA YOSHINO ,  RYOTA SAKABE

发明人： YUUTA YOSHINO ,  RYOTA SAKABE

IPC分类号： G01S7/484 ,  G01S7/481 ,  G01S7/4861 ,  G01S17/10

摘要： An object detector includes an optical scanning system and circuitry. The optical scanning system includes a light source configured to emit light at a predetermined light-emission cycle and a phototransmitter system configured to scan a certain range with the light emitted from the light source. The circuitry is configured to control at least one of a scanning range of the phototransmitter system and a light-emission cycle of the light source of the optical scanning system to maintain the number of times of light emission for one scan at a constant value, so as to calculate a distance to an object.

公开(公告)号：US20200300984A1

公开(公告)日：2020-09-24

申请号：US16818154

申请日：2020-03-13

申请人： KAZUMA MATSUURA ,  YUUTA YOSHINO ,  TAKEFUMI TAKIZAWA ,  SOICHIRO YOKOTA ,  JUN KISHIWADA ,  HIROYOSHI SEKIGUCHI ,  TADASHI NAKAMURA

发明人： KAZUMA MATSUURA ,  YUUTA YOSHINO ,  TAKEFUMI TAKIZAWA ,  SOICHIRO YOKOTA ,  JUN KISHIWADA ,  HIROYOSHI SEKIGUCHI ,  TADASHI NAKAMURA

IPC分类号： G01S7/4861 ,  G01S7/4865 ,  G01S7/481

摘要： A light signal detection device includes a light receiving optical system configured to receive a reflection signal reflected from an object when irradiation light emitted from an irradiation unit hits the object and reflects from the object; and circuitry configured to binarize the received reflection signal using a first threshold value, based on a determination of whether the reflection signal is equal to or greater than the first threshold value; binarize the received reflection signal using a second threshold value set with a given value similar to a noise signal value, based on a determination of whether the reflection signal is equal to or greater than the second threshold value; and measure a time difference between a time of emitting the irradiation light from the irradiation unit and a time of receiving a reflection signal equal to or greater than the first threshold value or the second threshold value.