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109526 条记录 (耗时 0.074 秒)

    RECEIVER CIRCUIT, CORRESPONDING SYSTEM AND METHOD
    171.
    发明公开
    RECEIVER CIRCUIT, CORRESPONDING SYSTEM AND METHOD 审中-公开

    公开(公告)号：EP4401323A1

    公开(公告)日：2024-07-17

    申请号：EP23219526.3

    申请日：2023-12-21

    申请人： STMicroelectronics International N.V.

    发明人： SPINA, Nunzio ,  CASTORINA, Alessandro ,  PALMISANO, Giuseppe

    IPC分类号： H04B1/16 ,  H04B1/30 ,  H04L27/02 ,  H03M1/06

    CPC分类号： H04B1/16 ,  H04B1/30 ,  H04L27/02 ,  H03M1/0607

    摘要： A receiver circuit for use, for instance, in interchip data communication in the automotive sector comprises an envelope detector (M1, M2, RL1, CED) configured to receive (RX1) an on-off keying, OOK signal modulated over a RF carrier. A differential stage (121, 122, RL2) has a first input (VA) coupled to the envelope detector (M1, M2, RL1, CED) and a second input (VB) configured to receive a reference signal. A comparator (16) is coupled (14) to first (C) and second (D) output nodes of the differential stage (121, 122, RL2) produces a PWM-modulated signal (PWMOUT) having on and off times. Offset compensation circuitry comprises a first switch (S1,Φ1) to short-circuit the input to the envelope detector (M1, M2, RL1, CED), a storage capacitor (CH) coupled to the second input (VB) of the differential stage (121, 122, RL2) and a second switch (S1,Φ2) to feed back to the storage capacitor (CH) a signal (18) indicative of the difference between the first (C) and the second (D) output nodes of the differential stage (121, 122, RL2), and a third switch (S3,Φ1) to short-circuit the input to the comparator (16) . Logic circuitry (100) activates the offset compensation circuitry in a sequence of phases comprising a start-up phase (SUP) and at least one standby phase (STBY) wherein the first (S1,Φ1), second (S2,Φ2) and third (S3,Φ1) switches are made conductive in the absence of the PWM-modulated signal (PWMOUT), and a working phase (WP) alternating with the start-up phase (SUP) or the at least one standby phase (STBY) in the presence of the PWM-modulated signal (PWMOUT) wherein the first (S1,Φ1), second (S2,Φ2) and third (S3,Φ1) switches are made conductive during off times (T2) of the PWM-modulated signal (PWMOUT).

    ANALOG-TO-DIGITAL CONVERTER (ADC) WITH BACKGROUND CALIBRATION
    172.
    发明公开
    ANALOG-TO-DIGITAL CONVERTER (ADC) WITH BACKGROUND CALIBRATION 审中-公开

    公开(公告)号：EP4401317A1

    公开(公告)日：2024-07-17

    申请号：EP24151261.5

    申请日：2024-01-10

    申请人： Qorvo US, Inc.

    发明人： BUNCH, Ryan Lee

    IPC分类号： H03M1/10

    CPC分类号： H03M1/1004

    摘要： Analog-to-digital converters (ADCs) with background calibration processes are disclosed. In one aspect, an ADC with a plurality of comparators that each compare an input voltage to voltages that are generated at taps across a plurality of references (e.g., a reference resistor ladder). The comparators are initially calibrated with foreground calibration routines and continuously recalibrated to compensate for aging, voltage, and temperature variations without interrupting operation of the ADC by randomly taking one comparator of the plurality of comparators off-line to run calibration processes without replacing that comparator. The value for the off-line comparator may be reliably inferred from values from neighboring comparators or, in some cases, guessed randomly. While possible errors may be introduced, such errors may be driven to a mean square quantization noise level through example aspects of the present disclosure.

    HIGH-BANDWIDTH VIBRATION SENSOR
    173.
    发明公开
    HIGH-BANDWIDTH VIBRATION SENSOR 审中-公开

    公开(公告)号：EP4400816A1

    公开(公告)日：2024-07-17

    申请号：EP23151597.4

    申请日：2023-01-13

    申请人： Sensirion AG

    发明人： Looser, Flurin ,  Mrcarica, Zeljko ,  Ryter, Roland ,  Schalch, Thomas ,  Keitel, Robert Christian

    IPC分类号： G01H1/00 ,  G01H3/00 ,  H03M1/06 ,  H03M1/12 ,  G01H11/06 ,  G01M13/028 ,  H03H11/12

    CPC分类号： G01H1/00 ,  G01H3/00 ,  H03M1/0626 ,  H03M1/12 ,  G01H11/06 ,  G01M13/028 ,  H03H11/1217 ,  G01M15/00 ,  G01M5/0066

    摘要： The invention refers to a sensor arrangement (100) for sensing vibrations. The sensor arrangement (100) comprises a vibration sensor (10) configured to provide a sensor signal (101 and an amplifier unit (20) configured to amplify the sensor signal (101) over a predefined operation frequency band (61, 71) with a gain according to a first transfer function (60, 70) and to provide an analog amplifier output signal (102. The sensor arrangement further comprises an analog-to-digital converter, ADC, (30) configured to convert the amplifier output signal (102) into a first digital signal (103); and a digital compensation unit (40) configured to apply a second transfer function on the first digital signal (103), wherein the second transfer function is an inverse function of the first transfer function (60, 70). The operation frequency band (61, 71) comprises a low-frequency band (62, 72) and a high-frequency band (63, 73) and the gain of the predefined first transfer function (60, 70) is lower in the low-frequency band (62, 72) than in the high-frequency band (63, 73).

    METHODS AND APPARATUS FOR CONSTRUCTING POLAR CODES
    176.
    发明公开
    METHODS AND APPARATUS FOR CONSTRUCTING POLAR CODES 审中-实审

    公开(公告)号：EP4398489A2

    公开(公告)日：2024-07-10

    申请号：EP24178153.3

    申请日：2017-06-26

    申请人： QUALCOMM Incorporated

    发明人： XU, Changlong ,  LI, Jian ,  HOU, Jilei ,  WEI, Chao

    IPC分类号： H03M13/35

    CPC分类号： H03M13/13 ,  H03M13/353

    摘要： A method and an apparatus for decoding a polar code on a receiver side are described. The method comprising receiving a coded block of control data generated based on polar encoding, determining at least one set of parameters corresponding to the control data, determining a set of indices corresponding to bits of the control data based on the set of parameters, the set of indices indicating positions of the bits of the control data and decoding the received coded block of control data based at least on the set of parameters and the set of indices to obtain decoded control data.

    METHOD AND MEANS OF DEAD TIME REDUCTION IN HALF BRIDGE TOPOLOGY
    177.
    发明公开
    METHOD AND MEANS OF DEAD TIME REDUCTION IN HALF BRIDGE TOPOLOGY 审中-实审

    公开(公告)号：EP4398486A1

    公开(公告)日：2024-07-10

    申请号：EP23211016.3

    申请日：2023-11-20

    申请人： Analog Devices International Unlimited Company

    发明人： STRZALKOWSKI, Bernhard

    IPC分类号： H03K17/16 ,  H02M1/38 ,  H03K17/284

    CPC分类号： H02M1/38 ,  H03K17/162 ,  H03K17/284 ,  H02M1/08

    摘要： There is provided a method of controlling a power converter or a power inverter, comprising: using a comparator to detect a negative voltage drop at a gate of a passive switch device, the negative voltage drop being indicative of an active switch device turning off; applying an adjustment time to a predetermined turn on time of the passive switch device so as to reduce the resultant dead time; and turning on the passive device once the resultant dead time has elapsed. There is also provided method of controlling a power converter or a power inverter, comprising: determining, by a microcontroller, an active switch device turning on; applying an adjustment time to a predetermined turn off time of a passive switch device so as to reduce the resultant dead time; and turning off the passive device once the resultant dead time has elapsed.

    SENSOR AND ELECTRONIC DEVICE
    179.
    发明公开
    SENSOR AND ELECTRONIC DEVICE 审中-实审

    公开(公告)号：EP4397944A1

    公开(公告)日：2024-07-10

    申请号：EP23192529.8

    申请日：2023-08-21

    申请人： Kabushiki Kaisha Toshiba

    发明人： HIRAGA, Hiroki ,  TOMIZAWA, Yasushi ,  MASUNISHI, Kei

    IPC分类号： G01C19/5733 ,  G01C19/5769 ,  G01C19/5783 ,  G01P15/097 ,  H03H3/00

    CPC分类号： G01P15/097 ,  G01C19/5769 ,  G01C19/5733 ,  G01C19/5783 ,  H03H3/00

    摘要： According to one embodiment, a sensor includes a housing, a sensor section, and a plurality of first fixing members. The housing includes a housing base. The sensor section is surrounded by the housing. The sensor section includes a sensor base, a support portion fixed to the sensor base, a movable portion supported by the support portion, and a plurality of fixed electrodes fixed to the sensor base and facing the movable portion. A first gap is provided between the sensor base and the movable portion. The fixed electrodes are provided in n-rotational symmetry in a first plane perpendicular to a first direction from the sensor base to the support portion. The n is an integer of 2 or more. The plurality of first fixing members fix the sensor base to the housing base. The first fixing members are provided in the n-rotational symmetry in the first plane.