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1. 发明申请

US20210325513A1 LIGHT SOURCE APPARATUS, DETECTION METHOD, AND SENSING MODULE 有权
公开(公告)号：US20210325513A1
公开(公告)日：2021-10-21
申请号：US17250684
申请日：2019-07-12
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： MITSUSHI TABATA , TAKASHI MASUDA
IPC分类号： G01S7/484 , G01S7/481 , H01S5/00 , H01S5/042 , H01S5/42 , G01S17/10 , G01S17/89
摘要： Attaining a more compact apparatus while also enabling the voltage to be detected for each light-emitting element in 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 detection section configured to detect a voltage at an anode or a cathode of the plurality of light-emitting elements in the emission section individually by time division. With this arrangement, it is not necessary to provide a circuit for detecting voltage with respect to each light-emitting element, and it becomes possible to attain a more compact apparatus.

2. 发明申请

US20210313777A1 LIGHT SOURCE DEVICE, DRIVE METHOD, AND SENSING MODULE 有权
公开(公告)号：US20210313777A1
公开(公告)日：2021-10-07
申请号：US17250467
申请日：2019-06-14
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： MITSUSHI TABATA , TAKASHI MASUDA
IPC分类号： H01S5/42 , H01S5/026 , H01S5/068
摘要： 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.

3. 发明申请

US20210273404A1 LASER DRIVE CIRCUIT AND SENSOR APPARATUS 有权
公开(公告)号：US20210273404A1
公开(公告)日：2021-09-02
申请号：US17250309
申请日：2019-06-17
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： MITSUSHI TABATA , TAKASHI MASUDA , TAKESHI YUWAKI , TOSHIYUKI KITAZAWA
IPC分类号： H01S5/042
摘要： A laser drive circuit is provided which includes: a first drive current unit (240) configured to adjust, by a first MOSFET (MN2) and a second MOSFET (MN3) being connected in series, an inflow of a current to a light-emitting element (LD11) 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 (MN4) 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 (220) configured to generate a signal for controlling driving of the first drive current unit and the voltage drop unit.

4. 发明申请

US20220104322A1 LIGHT SOURCE DEVICE AND ELECTRONIC DEVICE 有权
公开(公告)号：US20220104322A1
公开(公告)日：2022-03-31
申请号：US17310313
申请日：2020-01-16
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： TAKASHI MASUDA , MITSUSHI TABATA , KOICHI OKAMOTO , YASUO OBA
IPC分类号： H05B45/325 , G05F1/56 , H05B47/25 , G01S7/484
摘要： A light source device according to an embodiment includes: a first resistor (101) that is connected to a given potential; a light emitting element (12) that is connected in series to the first resistor; a second resistor (102) that is connected to the given potential; and a first current source (104) 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.

5. 发明申请

US20210349188A1 LIGHT SOURCE APPARATUS AND SENSING MODULE 有权
公开(公告)号：US20210349188A1
公开(公告)日：2021-11-11
申请号：US17250773
申请日：2019-08-05
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： MITSUSHI TABATA , TAKASHI MASUDA , TAKESHI YUWAKI , YASUO OBA
IPC分类号： G01S7/481 , H01S5/42 , H01S5/026 , G01S17/894
摘要： 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.

6. 发明申请

US20200091927A1 DAC AND OSCILLATION CIRCUIT 审中-公开
公开(公告)号：US20200091927A1
公开(公告)日：2020-03-19
申请号：US16470037
申请日：2017-12-14
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： YOSHINOBU KAWASAKI , KENTARO YASUNAKA , TAKASHI MASUDA
IPC分类号： H03M1/70 , H03B5/12
摘要： 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.

7. 发明申请

US20190332566A1 COMMUNICATION APPARATUS AND COMMUNICATION METHOD 审中-公开
公开(公告)号：US20190332566A1
公开(公告)日：2019-10-31
申请号：US16475274
申请日：2017-12-28
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： KENTARO YASUNAKA , TAKASHI MASUDA
IPC分类号： G06F13/42 , H04L25/02 , H04L12/40
摘要： The present technology relates to a communication apparatus and a communication method that enable an increase in the variation of modes of connection between electronic devices. Included are: a detected mechanism corresponding to a mechanism included in a second electronic device that receives a baseband signal outputted by a first electronic device, the detected mechanism being configured to, upon the first electronic device and the second electronic device being connected, be detected by the first electronic device, and be connected to the first electronic device; a connection unit configured to, upon a connection of the first and second electronic devices being detected, connect the detected mechanism to the first electronic device; and a millimeter-wave generation unit configured to generate a signal in a millimeter wave band obtained by converting frequency from the baseband signal outputted by the first electronic device to a signal in a higher frequency band than the baseband signal. When the connection unit is connected and the baseband signal is being inputted, the millimeter-wave generation unit generates the signal in the millimeter wave band. The present technology can be applied to, for example, connection where a universal serial bus (USB) host recognizes a connection to a USB device.

8. 发明申请

US20220276381A1 LASER DRIVE DEVICE, SENSING MODULE, AND TIMING ADJUSTMENT METHOD 有权
公开(公告)号：US20220276381A1
公开(公告)日：2022-09-01
申请号：US17627902
申请日：2020-06-12
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： TAKASHI MASUDA , MITSUSHI TABATA , KOICHI OKAMOTO
IPC分类号： G01S17/26 , G01S7/484 , G01S7/4863 , G01S7/4865
摘要： The laser drive device (41) includes: a drive circuit (43) that drives a light emitting element (40) by a vertical cavity surface emitting laser to emit light on the basis of a drive control signal; an assist circuit (42) that short-circuits both ends of the light emitting element on the basis of an assist control signal to speed up a fall time of the light emitting element; a timing adjustment unit (20) that performs mutual timing adjustment between the drive control signal and the assist control signal on the basis of a timing adjustment signal; a phase detection unit (33) that detects a phase difference between the drive control signal and the assist control signal; and a timing control unit (34) that generates the timing adjustment signal on the basis of a phase difference detection result of the phase detection unit.

9. 发明申请

US20220271502A1 LASER DRIVE APPARATUS, PULSE WIDTH ADJUSTING METHOD, AND SENSING MODULE 有权
公开(公告)号：US20220271502A1
公开(公告)日：2022-08-25
申请号：US17628398
申请日：2020-05-24
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： TAKASHI MASUDA , MITSUSHI TABATA , KOICHI OKAMOTO
IPC分类号： H01S5/062 , H01S5/042 , G01S7/484 , G01S7/486
摘要： 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.

10. 发明申请

US20220094139A1 LIGHT SOURCE DEVICE AND ELECTRONIC DEVICE 有权
公开(公告)号：US20220094139A1
公开(公告)日：2022-03-24
申请号：US17310334
申请日：2020-01-16
申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION
发明人： TAKASHI MASUDA , MITSUSHI TABATA , KOICHI OKAMOTO , YASUO OBA
IPC分类号： H01S5/042 , H01S5/40
摘要： A light source device according to an embodiment includes: a first resistor (101) that is connected to a given potential; a light emitting element (12) that is connected in series to the first resistor and that is configured to be supplied with a given current and thus emit a given amount of light; a second resistor (102) that is connected to the given potential; and a first current source (104) that is connected in series to the second resistor and that is configured to supply a current obtained by adding a current corresponding to an overcurrent to the given current are included, 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.

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