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    Internally matched active single-to-differential RF converter
    34.
    发明授权
    Internally matched active single-to-differential RF converter 有权
    内部匹配的有源单对差分RF转换器

    公开(公告)号：US09584073B1

    公开(公告)日：2017-02-28

    申请号：US14877331

    申请日：2015-10-07

    Applicant: GM Global Technology Operations LLC

    Inventor： Pan Hsuanyu ,  Alexandros Margomenos ,  Hasan Sharifi ,  Igal Bilik

    IPC: H03F1/30 ,  H03F3/195 ,  H03F3/19

    CPC classification number: H03F1/302 ,  H03F3/19 ,  H03F3/195 ,  H03F3/26 ,  H03F2200/451

    Abstract: A single-to-differential converter and a method of fabricating the single-to-differential converter on an integrated circuit are described. The single-to-differential converter provides a pair of differential outputs based on a single-ended input and includes an input node to receive the single-ended input, and a first transistor connected to a power supply pin. A second transistor is connected to the power supply pin. The first transistor and the second transistor are biased under a same amount of direct current (DC) and the pair of differential outputs are generated at respective collectors of the first transistor and the second transistor.

    Abstract translation: 描述了一种单差分转换器和在集成电路上制造单对差分转换器的方法。 单差分转换器提供基于单端输入的一对差分输出，并且包括用于接收单端输入的输入节点和连接到电源引脚的第一晶体管。 第二晶体管连接到电源引脚。 第一晶体管和第二晶体管在相同量的直流（DC）下被偏置，并且该对差分输出在第一晶体管和第二晶体管的相应集电极处产生。

    Systems and methods for filtering sound in a defined space
    35.
    发明授权
    Systems and methods for filtering sound in a defined space 有权
    用于在定义的空间中过滤声音的系统和方法

    公开(公告)号：US09390713B2

    公开(公告)日：2016-07-12

    申请号：US14022978

    申请日：2013-09-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Eli Tzirkel-Hancock ,  Igal Bilik ,  Moshe Laifenfeld

    IPC: G10K11/16 ,  G10L15/20 ,  G10L21/0216

    CPC classification number: G10L15/20 ,  G10L2021/02166

    Abstract: Methods and systems are provided for filtering sound. A position sensor determines positions of a plurality of occupants in a defined space. Multiple microphones receive sound and generate corresponding audio signals. A processor in communication with the microphones and the position sensor receives the positions of the occupants and the audio signals. The processor determines which of the occupants are engaging in speech and applies a temporal-spatial filter to the audio signals to generate a plurality of output signals corresponding respectively to each occupant of the defined space.

    Abstract translation: 提供了过滤声音的方法和系统。 位置传感器确定多个乘员在定义的空间中的位置。 多个麦克风接收声音并产生相应的音频信号。 与麦克风和位置传感器通信的处理器接收乘员和音频信号的位置。 处理器确定哪个占用者正在从事语音，并且对音频信号应用时空滤波器以产生分别对应于所定义的空间的每个乘员的多个输出信号。

    Polarization diversity detection in FMCW Lidar
    36.
    发明授权
    Polarization diversity detection in FMCW Lidar 有权

    公开(公告)号：US12146956B2

    公开(公告)日：2024-11-19

    申请号：US17135405

    申请日：2020-12-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Tzvi Philipp ,  Igal Bilik

    IPC: G01S17/34 ,  G01S7/481 ,  G01S7/4914 ,  G01S7/499

    Abstract: A system and method of classifying an object. The system includes a polarizing beam splitter, a first detector, a second detector and a processor. The polarizing beam splitter generates a first source signal having a first polarization direction and a second source signal having a second polarization. The first detector transmits the first source signal at the object and receives a first reflected signal generated at the object in response to the first source signal. The second detector transmits the second source signal at the object and receives a second reflected signal generated at the object in response to the second source signal. The processor is configured to compare the first reflected signal to the second reflected signal to classify the object.

    LOW SIDE LOBE LEVEL INTEGRATED CAVITY BACKED SLOT ARRAY ANTENNA SYSTEM
    37.
    发明公开
    LOW SIDE LOBE LEVEL INTEGRATED CAVITY BACKED SLOT ARRAY ANTENNA SYSTEM 审中-公开

    公开(公告)号：US20240120662A1

    公开(公告)日：2024-04-11

    申请号：US16940500

    申请日：2020-07-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Hanseung Lee ,  Igal Bilik

    IPC: H01Q21/00 ,  H01Q21/24

    CPC classification number: H01Q21/0037 ,  H01Q21/24

    Abstract: An antenna system operates in a hybrid coplanar waveguide and rectangular waveguide mode. A slot array with a conductive layer is disposed on a substrate and defines a coplanar waveguide joining a number of side slots arranged in a line forming the slot array. Another substrate is spaced apart from the substrate and a ground plane is defined thereon. A defined volume waveguide is disposed between the substrates. The array is configured to radiate a radiation pattern in a hybrid mode that results from a combination of the slot array and the defined volume waveguide. The side slots may be elliptical in shape for side lobe level reduction.

    ANTENNA SELECTION IN A RADAR SYSTEM BASED ON MULTIPLE DETECTED OBJECTS AND MULTI-STEP PLANNING
    38.
    发明申请
    ANTENNA SELECTION IN A RADAR SYSTEM BASED ON MULTIPLE DETECTED OBJECTS AND MULTI-STEP PLANNING 有权

    公开(公告)号：US20220229169A1

    公开(公告)日：2022-07-21

    申请号：US17153248

    申请日：2021-01-20

    Applicant: GM Global Technology Operations LLC

    Inventor： Yaron Eshet ,  Igal Bilik

    IPC: G01S13/72 ,  G01S13/931 ,  G01S7/03

    Abstract: A radar system includes antenna elements and receive channels. An adaptive switch couples the receive channels to a subset of the antenna elements as selected antenna elements. The selected antenna elements receive reflected signals from reflection by objects and each of the receive channels outputs the digital signal based on the reflected signal from the coupled selected antenna element. A controller processes the digital signal from each receive channel to estimate a direction of arrival (DOA) to each object and generate candidate configurations of the switch. Assessing the candidate configurations includes performing a multi-step assessment using a decision tree with each candidate configuration as a root and examining accuracy of an output at a last step in the decision tree to select a selected candidate configuration based on the accuracy. The switch is configured according to the selected candidate configuration prior to receiving the reflected signals for a next iteration.

    POLARIZATION DIVERSITY DETECTION IN FMCW LIDAR
    39.
    发明申请
    POLARIZATION DIVERSITY DETECTION IN FMCW LIDAR 有权

    公开(公告)号：US20220206148A1

    公开(公告)日：2022-06-30

    申请号：US17135405

    申请日：2020-12-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Tzvi Philipp ,  Igal Bilik

    IPC: G01S17/34 ,  G01S7/481 ,  G01S7/499 ,  G01S7/4914

    Abstract: A system and method of classifying an object. The system includes a polarizing beam splitter, a first detector, a second detector and a processor. The polarizing beam splitter generates a first source signal having a first polarization direction and a second source signal having a second polarization. The first detector transmits the first source signal at the object and receives a first reflected signal generated at the object in response to the first source signal. The second detector transmits the second source signal at the object and receives a second reflected signal generated at the object in response to the second source signal. The processor is configured to compare the first reflected signal to the second reflected signal to classify the object.

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