Sony Corporation

Sony Semiconductor Solutions Corporation

Kazuhide Namba

Hiroaki Ebihara

Youji Sakioka

Daisuke Yoshioka

Ryota Moriwaka

Yusuke Moriyama

Akira Chokki

The present technology relates to a distance measurement device and a distance measurement method that can easily suppress interference. A first frame being a period that a distance to a target object is calculated includes a plurality of subframes being periods that irradiation light is emitted, and the emission of the irradiation light is controlled so that timing of head subframes differs between a first frame and a second frame following the first frame, and intervals between the subframes become constant during the period of the first frame. The present technology can be applied to a case where distance measurement for measuring a distance is performed.

Distance measurement device and distance measurement method

It is intended to promote enhancement of performance of acquiring a depth image. A depth image acquiring apparatus includes a light emitting diode, a TOF sensor, and a filter. The light emitting diode irradiates modulated light toward a detection area becoming an area in which a depth image is to be acquired to detect a distance. The TOF sensor receives incident light into which the light irradiated from the light emitting diode is reflected by an object lying in the detection area to become, thereby outputting a signal used to produce the depth image. The filter passes more light having a wavelength in a predetermined pass bandwidth than light having a wavelength in a pass bandwidth other than the predetermined pass bandwidth of the light made incident toward the TOF sensor. In this case, at least one of the light emitting diode, the TOF sensor, or arrangement of the filter is controlled in accordance with a temperature of the light emitting diode or the TOF sensor. The present technique, for example, can be applied to a system for with international search report acquiring a depth image by using a TOF system.

Depth image acquiring apparatus, control method, and depth image acquiring system

An imaging device includes an exposure control unit, a determination unit, and an illuminance calculation unit. The exposure control unit is configured to control a plurality of exposure times. The determination unit is configured to determine whether or not saturation occurs using at least one data item of a plurality of data items obtained during the plurality of exposure times. The illuminance calculation unit is configured to calculate, if the determination unit determines that the saturation occurs, an illuminance using a data item different from the at least one data item used in the determination.

Imaging device and imaging method having an illuminance calculation unit calculating respective illuminances corresponding to digital signals

Imaging device and imaging method having saturation determination for an illuminance calculation

A power supply circuit includes: a comparison unit that compares a reference voltage and an input voltage and outputs a voltage difference signal; an output voltage generating unit that generates an output voltage based on the voltage difference signal; an input voltage generating unit that generates the input voltage based on the output voltage; a current output unit that outputs a reference current; a resistor that generates the reference voltage in accordance with the reference current; and a capacitor that is connected to the resistor in parallel and is charged by the reference current, wherein the current output unit allows the reference current at the time of startup to be lower than the reference current during an operation.

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Kanagawa, Japan

Kazuhide Namba