Distance measuring system and imaging sensor

An imaging sensor of a light receiving unit used for a TOF distance measuring system, the TOF distance measuring system comprising:

• a light source unit for emitting light at a timing indicated by an emission signal;
• the light receiving unit for acquiring RAW data for each of pixels from the imaging sensor;
• a TOF calculation unit for supplying a TOF signal indicating a distance from each of the pixels to an object, the distance being calculated based on the RAW data;
• a detection unit for detecting a difference between a standard value and the TOF signal for a standard pixel, of the pixels, on the imaging sensor, and generating at least one of a phase control signal and a fine adjustment signal in accordance with the difference;
• a correction control unit serving as a correction unit when the fine adjustment signal is generated and serving as a control unit when the phase control signal is generated, the correction unit correcting the TOF signal based on the fine adjustment signal and outputting a correction result as distance information for each of the pixels, the control unit controlling a phase shift of at least one of the emission signal and an exposure signal based on the phase control signal;
• and
• a marker disposed at a fixed position with respect to the light source unit and the light receiving unit,
• wherein the imaging sensor is exposed to light reflected from the object at a timing indicated by the exposure signal, and includes the standard pixel for receiving light from the marker.