Sony Semiconductor Solutions Corporation

Sony Corporation

Yamatake Corporation

Nec Corporation

Mitsubishi Denki Kabushiki Kaisha

Yamatake-honeywell Co., Ltd.

Acutelogic Corporation

Max Co., Ltd.

Canon-staar Co. Inc.

Intel Corporation

Citizen Holdings Company, Ltd.

Citizen Finetech Miyota Co., Ltd

Silicon Hive B.v.

Staar Japan, Inc.

Azbil Corporation

Takashi Masuda

Hidetoshi Kabasawa

Mitsushi Tabata

Kenji Hachisu

Kazuyuki Yamamoto

Yoshiyuki Ishikura

Kazuyuki Yamamato

Yasuhiro Sawada

Shigeo Kimura

Takeshi Yuwaki

Koichi Okamoto

Takashi Kihara

Yasuo Oba

Ryota Shinoda

Kenichi Kobayashi

Kunihito Sawai

Daigo Takemura

Katsuhiko Yamada

Kenro Mitsuda

Toshiyuki Nakajima

Hideaki Kumagai

Kazuki Kubo

Kenichi Maruko

Toshikazu Kikuchi

Tetsuo Mitani

Kumiko Mahara

Fumiyuki Miyamoto

Yasuhide Yoshikawa

Yoshiyuki Takuma

Kentaro Yasunaka

Zhiwei Zhou

Yoshiharu Saiki

XianJi Zhang

Yosuke Ueno

Toshio Mamiya

Akihiro Kikuchi

Yoshio Kondo

Yuji Morimiya

Akira Aoki

Jeremy Chatwin

Takashi Kawaguchi

Daisuke Suzuki

Masaru Soeda

Manabu Tsuchiya

Mitsuo Hoshino

Rikoku Nakamura

Yoshihiro Ide

Mitsuhiro Shimada

Isamu Karino

Takaaki Kuroiwa

Jun Maemori

Yuichiro Nogo

Toshiyuki Kataoka

Shinji Amari

Toshiyuki Kitazawa

Toshihide Nakane

Yuka Tsutsumi

Hirokazu Takada

Nobuo Sashinami

Kenji Shiojima

Kouki Yoshida

Mitsugi Shimoda

Taketoshi Arai

Masanori Sasatsu

Kazuo Masuda

Hajime Hamashima

Genichiro Seo

Yoshinori Takubo

Hiroaki Hatori

Shigeto Maejima

Seiichi Mitumoto

Takaharu Aoki

Kenichiro Waki

Hidetaka Takuma

Takehiro Minato

Yoshinobu Kawasaki

Takuo Furuki

Masafumi Sei

Kenichiro Ohno

Kenichi Shinzaki

Kouichi Koizumi

Hiroyuki Hamano

By eliminating the need to use a high-precision clock in pulse width detection for pulse width adjustment in a case where light-emitting elements as vertical-cavity surface-emitting lasers are pulse-driven, circuit configuration is simplified and cost is reduced. A laser drive apparatus according to the present technology includes a drive circuit unit that drives light-emitting elements as vertical-cavity surface-emitting lasers to emit light on the basis of a pulse signal, a pulse width detection unit that detects the pulse width of the pulse signal on the basis of the potential of a capacitor when the capacitor is charged on the basis of the pulse signal, and a control unit that performs control so that the pulse width is adjusted on the basis of a detection result of the pulse width.

Laser drive apparatus, pulse width adjusting method, and sensing module

Provided is a light source device that includes a first resistor connected to a given potential, a light emitting element connected in series to the first resistor and that is supplied with a given current and thus emit a given amount of light, and a second resistor connected to the given potential, The light source device further includes a first current source connected in series to the second resistor and that is supplied with a current, and a first voltage at a first connection part where the first resistor and the light emitting element are connected to each other and a second voltage at a second connection part where the second resistor and the first current source are connected to each other are taken out.

Light source device and electronic device

A delay adjustment circuit according to an embodiment includes: a plurality of delay adjustment units connected in series, each of the plurality of delay adjustment units including one or more first delay elements () connected in series that delay an input signal on the basis of a clock, and a first selector () that outputs one of the input signal and an output of the first delay element at a last stage among the one or more first delay elements; and an output unit () that outputs a clock according to an output of the first selector included in a delay adjustment unit at a last stage among the plurality of delay adjustment units, in which each of the plurality of delay adjustment units includes a different number of the first delay elements.

Delay adjustment circuit and distance measuring device

A suppression of a rise in temperature is to be attained for a light source apparatus provided with an emission section in which a plurality of vertical-cavity surface-emitting laser light-emitting elements is arrayed. A light source apparatus according to the present technology includes an emission section in which a plurality of vertical-cavity surface-emitting laser light-emitting elements is arrayed, and a driving section configured to cause the plurality of light-emitting elements of the emission section to emit light, in which at least a portion of a region including driving elements in the driving section is disposed so as not to overlap with the emission section.

Light source apparatus and sensing module

An object of the present disclosure is to provide a transmission device, a reception device, and a transmission-reception system capable of achieving downsizing and communication at a high frame rate. A transmission device includes a control signal reception unit that receives a control signal input from an external device and including predetermined information, and a control unit that controls switching between first communication and second communication on a basis of switching information, the switching information being included in the predetermined information as necessary, the switching information indicating switching between the first communication in which host communication is executed in a blanking period among one frame period and the second communication in which host communication is executed in a blanking period and a data output period among one frame period.

Transmission device, reception device, and transmission-reception system

A light source apparatus is provided with the emission section in which a plurality of vertical-cavity surface-emitting laser light-emitting elements is arrayed, the driving circuit section that causes the plurality of light-emitting elements of the emission section to emit light, the temperature detection section that includes a plurality of temperature sensors arranged to detect the temperature of the emission section, and a control section. The control section is configured to, during an emission target period when the light-emitting elements of the emission section are driven by the driving circuit section, correct a detection value from each of the plurality of temperature sensors by using a correction value set for each of the temperature sensors.

Light source apparatus, temperature detection method, and sensing module

Provided is a transmission/reception system that can implement miniaturization and a reduced number of wires for transmitting a signal between a sensor device and a reception device. The sensor device includes a data transmitting unit configured to transmit imaging data synchronized with a first clock signal to the reception device through a first signal transmission path, a clock signal transmitting unit configured to transmit a second clock signal with a lower frequency than the first clock signal to the reception device through a second signal transmission path, and a control signal communicating unit configured to communicate a control signal necessary for control of the first clock signal with the reception device through the second signal transmission path. The reception device includes a signal generating unit configured to generate the control signal on the basis of a comparison result of a comparison between a reference clock signal and any one of the second clock signal based on the first clock signal and the second clock signal transmitted from the sensor device through the second signal transmission path, and a control signal communicating unit configured to communicate the control signal with the sensor device through the second signal transmission path.

Sensor device, reception device, and transmission/reception system

A light source device including a light emitting unit in which multiple light emitting elements including vertical cavity surface emitting lasers are arranged is intended to curb temperature rise. A light source device according to the present technology includes a light emitting unit in which multiple light emitting elements including vertical cavity surface emitting lasers are arranged, and a driving unit that, regarding the light emitting element in the light emitting unit, causes multiple light emitting elements to be caused to emit light in a light emission target period to emit light in a time-divided manner in the light emission target period. By adopting time-division light emission, the number of light emitting elements that are caused to emit light simultaneously is reduced.

Light source device, drive method, and sensing module

A laser drive circuit is provided which includes: a first drive current unit () configured to adjust, by a first MOSFET (MN) and a second MOSFET (MN) being connected in series, an inflow of a current to a light-emitting element (LD) that emits light in accordance with a current amount when the light-emitting element emits light and when the light-emitting element is extinguished; a voltage drop unit (MN) configured to cause a gate-source voltage of the first MOSFET to drop when the light-emitting element is extinguished; and a timing generating unit () configured to generate a signal for controlling driving of the first drive current unit and the voltage drop unit.

Laser drive circuit and sensor apparatus

A communication system includes: a transmission device including a transmission data generator, a pattern generator, a transmitter, and a control signal receiver, the transmission data generator that is configured to generate transmission data, the pattern generator that is configured to generate an alternate pattern alternating at every lapse of a predetermined time, the transmitter that includes a first equalization circuit and is configured to transmit a transmission signal including the transmission data and the alternate pattern, the first equalization circuit that is configured to adjust equalization characteristics on the basis of first instruction information, and the control signal receiver that is configured to receive the first instruction information; and a reception device including a receiver, a first detector, and a control signal transmitter, the receiver that is configured to receive the transmission signal, the first detector that is configured to detect a frequency component corresponding to the predetermined time of the alternate pattern included in the transmission signal, and the control signal transmitter that is configured to generate the first instruction information on the basis of a result of detection by the first detector and is configured to transmit the first instruction information.

Communication system, transmission device, and reception device

A light source device that includes a first resistor that is connected to a given potential, a light emitting element that is connected in series to the first resistor, a second resistor that is connected to the given potential, and a first current source that is connected in series to the second resistor and that is configured to supply a freely-selected current within a given range are included. A first voltage is taken out from a first connection part where the first resistor and the light emitting element are connected to each other and a second voltage is taken out from a second connection part where the second resistor and the first current source are connected to each other.

An objective of the present technology is to provide a transmission device, a reception device, and a transceiver system of which miniaturization can be achieved. The transmission device includes an oscillator configured to oscillate a first clock signal; and a register signal reception unit configured to receive a register signal transmitted from a reception device and used for controlling the first clock signal. The reception device includes a signal generation unit configured to generate a register signal for controlling a first clock signal transmitted from the transmission device based on a comparison result obtained by comparing a reference clock signal with one of the first clock signal and a second clock signal which is based on the first clock signal; and a register signal transmission unit configured to transmit the register signal generated by the signal generation unit to the transmission device.

Transmission device, reception device, and transceiver system

The present disclosure relates to a transmitter and a transmission method and a receiver and a reception method that make it possible to suppress an increase in power consumption. Data in which a clock signal is embedded is transmitted, and a frequency of the clock signal embedded in the data is controlled to reduce the frequency of the clock signal in a predetermined period. Alternatively, data in which a clock signal is embedded and a notification indicating that a frequency of the clock signal is variable are received, and a frequency of the received data is reduced in a predetermined period, on the basis of the received notification. The present disclosure is applicable to, for example, a transmitter, a receiver, a signal processor, a controller, an information transfer system, a transmission method, a reception method, a program, or the like.

Transmitter and transmission method and receiver and reception method

The present technology relates to a DAC (Digital to Analog Converter) and an oscillation circuit that allow widening of a range of a voltage to be output from the DAC. A plurality of first switches is connected to a voltage-dividing resistor and each configured to output, as a first voltage, a voltage at a corresponding one of connection points between the voltage-dividing resistor and the plurality of first switches. A plurality of second switches is connected to the voltage-dividing resistor and each configured to output, as a second voltage, a voltage at a corresponding one of connection points between the voltage-dividing resistor and the plurality of second switches. The present technology can be applied to, for example, a VCO (Voltage-Controlled Oscillator) and the like that oscillates a signal with a frequency according to a voltage to be output from a DAC.

DAC and oscillation circuit

The operation range of a phase detector provided with a flip-flop is improved, and the jitter tolerance of a receiving circuit is enhanced. The phase detector includes a holding unit and a detection unit. In the phase detector, the holding unit holds an input signal in synchronization with a predetermined periodic signal. The detection unit detects a phase difference between a designated edge and the predetermined periodic signal on the basis of a signal held in the holding unit. The designated edge is designated by a control signal that designates one of a rising edge and a falling edge of the input signal as the designated edge.

Phase detector, phase synchronization circuit, and method of controlling phase synchronization circuit

Growing community of inventors

Tokyo, Japan

Takashi Masuda