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    TIME OF FLIGHT APPARATUSES AND AN ILLUMINATION SOURCE
    21.
    发明申请
    TIME OF FLIGHT APPARATUSES AND AN ILLUMINATION SOURCE 审中-公开
    飞行时间和照明源

    公开(公告)号：US20160041264A1

    公开(公告)日：2016-02-11

    申请号：US14812003

    申请日：2015-07-29

    Applicant: Infineon Technologies AG

    Inventor： Markus Dielacher ,  Martin Flatscher ,  Michael Mark ,  Josef Prainsack

    IPC: G01S17/10 ,  G01S17/89 ,  G01S7/486 ,  H04N5/33

    CPC classification number: G01S17/10 ,  G01S7/4865 ,  G01S7/4915 ,  G01S7/497 ,  G01S17/36 ,  G01S17/89 ,  H04N5/33

    Abstract: An apparatus includes a detector circuit configured to receive a modulated electromagnetic wave signal from an illumination source and to provide a detection signal having a frequency dependent on a modulation frequency of the modulated electromagnetic wave signal. The apparatus further includes a reference circuit configured to generate a reference signal based on the detection signal. The apparatus further includes a sensor circuit configured to generate based on the reference signal a sensor signal based on reflected modulated electromagnetic waves emitted by the illumination source and reflected by an object. The apparatus further includes a processing circuit configured to determine distance information related to the object based on the sensor signal.

    Abstract translation: 一种装置包括：检测器电路，被配置为从照明源接收经调制的电磁波信号，并提供具有取决于调制的电磁波信号的调制频率的频率的检测信号。 该装置还包括被配置为基于检测信号产生参考信号的参考电路。 该装置还包括传感器电路，其被配置为基于参考信号生成基于由照明源发射并被物体反射的反射调制电磁波的传感器信号。 该装置还包括处理电路，其被配置为基于传感器信号来确定与对象相关的距离信息。

    TIME OF FLIGHT ILLUMINATION CIRCUIT
    22.
    发明申请
    TIME OF FLIGHT ILLUMINATION CIRCUIT 有权
    飞行时间照明电路

    公开(公告)号：US20140312233A1

    公开(公告)日：2014-10-23

    申请号：US13866461

    申请日：2013-04-19

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： Michael Mark ,  Markus Dielacher ,  Martin Flatscher ,  Josef Prainsack

    IPC: H05B33/08 ,  G01J5/10

    CPC classification number: H05B33/0845 ,  G01J1/46 ,  G01J5/10 ,  H05B33/0842

    Abstract: Some aspects of the present disclosure provide system and method of operation of a driving circuit for a light emitting element in a Time-of-Flight (ToF) camera. A DC-DC converter is configured to emit a constant current, and is coupled in parallel to a first modulation switch configured to connect the driving circuit to ground. The first modulation switch is further configured to alternate connections between the current source and ground at a frequency in a desired range of operation to produce an AC current. In some embodiments, an RC circuit element is coupled to an output electrode of the light emitting element and configured to apply a reverse bias to decrease turn-off time of the light emitting element. In some embodiments, a second modulation switch is coupled to the output electrode and configured to apply the reverse bias across the light emitting element. Other systems and methods are also disclosed.

    Abstract translation: 本公开的一些方面提供了用于飞行时间（ToF）照相机中的发光元件的驱动电路的操作系统和方法。 DC-DC转换器被配置为发射恒定电流，并且并联耦合到被配置为将驱动电路连接到地的第一调制开关。 第一调制开关还被配置为以期望的操作范围内的频率在电流源和地之间交替连接以产生AC电流。 在一些实施例中，RC电路元件耦合到发光元件的输出电极并被配置为施加反向偏压以减少发光元件的关断时间。 在一些实施例中，第二调制开关耦合到输出电极并且被配置为跨越发光元件施加反向偏置。 还公开了其它系统和方法。

    Image sensor with interleaved hold for single-readout depth measurement
    23.
    发明授权
    Image sensor with interleaved hold for single-readout depth measurement 有权

    公开(公告)号：US11506763B2

    公开(公告)日：2022-11-22

    申请号：US16176817

    申请日：2018-10-31

    Applicant: Infineon Technologies AG

    Inventor： Markus Dielacher ,  Martin Flatscher ,  Robert Lobnik ,  Hartwig Unterassinger

    IPC: G01S7/4865 ,  G01S7/4863 ,  G01S17/10

    Abstract: Time-of-flight (TOF) systems and techniques whereby a first exposure obtains pixel measurements for a first subset of pixels of a pixel array, using a first reference signal. For a second exposure, the first subset of the pixels, e.g., every second line of the pixel array, are set to a “hold” state, so that values obtained from the first measurement are maintained. A second exposure using a second reference signal is performed for a second subset of the pixels. The first and second reference signals may have different phase shifts relative to a signal modulating an optical signal being measured. The result is an array of pixels in which the first and second subsets hold results of the first and second exposures, respectively. These pixel values can then be read out all at once, with certain calculations being performed directly as pixel values are read from the pixel array.

    Phase emulator for a time-of-flight (ToF) device
    25.
    发明授权
    Phase emulator for a time-of-flight (ToF) device 有权

    公开(公告)号：US11275176B2

    公开(公告)日：2022-03-15

    申请号：US16182286

    申请日：2018-11-06

    Applicant: Infineon Technologies AG

    Inventor： Markus Dielacher ,  Martin Flatscher ,  Stefan Gansinger ,  Robert Lobnik

    IPC: G01S17/26 ,  G01S7/484 ,  G01S7/497 ,  G01S17/89

    Abstract: An example time-of-flight device may include an emitter component configured to emit a plurality of modulated signals toward an object during a transmission window, wherein the plurality of modulated signals emitted during the transmission window are to be used to determine a single distance measurement associated with the object and the time-of-flight device. The time-of-flight device may include a control component configured to cause, via the emitter component, emission of a first modulated signal and emission of a second modulated signal, of the plurality of modulated signals, toward the object, wherein the first modulated signal is emitted during a first portion of the transmission window and has a first phase of a plurality of preconfigured phases, and wherein the second modulated signal is emitted during a second portion of the transmission window and has a second phase of the plurality of preconfigured phases; and cause, using the emission of the first modulated signal and the emission of the second modulated signal during the transmission window, an emulation of a transmission of a measurement signal that has a measurement phase defined based on the first phase and the second phase, wherein the measurement phase is different from the first phase and the second phase.

    Time of flight apparatuses and an illumination source
    30.
    发明授权
    Time of flight apparatuses and an illumination source 有权

    公开(公告)号：US10101453B2

    公开(公告)日：2018-10-16

    申请号：US14812003

    申请日：2015-07-29

    Applicant: Infineon Technologies AG

    Inventor： Markus Dielacher ,  Martin Flatscher ,  Michael Mark ,  Josef Prainsack

    IPC: G01C3/08 ,  G01S17/10 ,  G01S7/486 ,  G01S17/89 ,  H04N5/33 ,  G01S17/36 ,  G01S7/491 ,  G01S7/497

    Abstract: An apparatus includes a detector circuit configured to receive a modulated electromagnetic wave signal from an illumination source and to provide a detection signal having a frequency dependent on a modulation frequency of the modulated electromagnetic wave signal. The apparatus further includes a reference circuit configured to generate a reference signal based on the detection signal. The apparatus further includes a sensor circuit configured to generate based on the reference signal a sensor signal based on reflected modulated electromagnetic waves emitted by the illumination source and reflected by an object. The apparatus further includes a processing circuit configured to determine distance information related to the object based on the sensor signal.

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