18492640. RANGE FINDING APPARATUS AND MEASUREMENT APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
RANGE FINDING APPARATUS AND MEASUREMENT APPARATUS
Organization Name
Inventor(s)
Shunichi Wakashima of Tokyo (JP)
Kohei Okamoto of Kanagawa (JP)
Takashi Hanasaka of Tokyo (JP)
RANGE FINDING APPARATUS AND MEASUREMENT APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18492640 titled 'RANGE FINDING APPARATUS AND MEASUREMENT APPARATUS
Simplified Explanation
The patent application describes a range finding apparatus that uses a light-receiving device with two-dimensionally arranged pixels of different sensitivities to measure time periods from when light is incident on each pixel and compute distance information based on the measured time periods.
- Two-dimensionally arranged pixels with different sensitivities
- Measures time periods from light incident on each pixel
- Computes distance information based on measured time periods
- Lower measurement resolution for second pixel compared to first pixel
Potential Applications
- Autonomous vehicles
- Robotics
- Surveillance systems
- Augmented reality devices
Problems Solved
- Improved accuracy in distance measurement
- Enhanced performance in low light conditions
- Reduction in power consumption
Benefits
- Higher precision in range finding
- Increased reliability in various lighting conditions
- Energy efficiency in operation
Original Abstract Submitted
A range finding apparatus uses a light-receiving device in which a first pixel having a first sensitivity and a second pixel having a second sensitivity that is lower than the first sensitivity are two-dimensionally arranged. The range finding apparatus measures time periods from a predetermined time until times when light is incident on each of the first pixel and the second pixel, and computes distance information for the first pixel and the second pixel based on the measured time periods. The measurement resolution used to measure the time period for the second pixel is lower than a measurement resolution used to measure the time period for the first pixel.
