Canon kabushiki kaisha (20240410996). RANGING DEVICE AND RANGING METHOD
RANGING DEVICE AND RANGING METHOD
Organization Name
Inventor(s)
KAZUNORI Matsuyama of Kanagawa (JP)
TAKEAKI Itsuji of Kanagawa (JP)
RANGING DEVICE AND RANGING METHOD
This abstract first appeared for US patent application 20240410996 titled 'RANGING DEVICE AND RANGING METHOD
Original Abstract Submitted
a ranging device includes a light receiving unit of converting optical signal including light emitted from a light emitting unit and reflected by an object into pulse signal, a control unit of setting the light receiving unit to one of exposure periods corresponding classes defined according to time from emission to detection for each emission of light, an information generation unit of generating information indicating a relationship between the class and a frequency indicating the number of pulse signals, based on signal output from the light receiving unit during a frame, and a peak determination unit of determining a peak of the frequency in the information. when the peak is detected in the information acquired in a first frame, in the next second frame, the control unit sets as the exposure period in order from a period closer to a period corresponding to a class the peak is detected.