CLOCK GENERATOR CIRCUIT FOR NEAR FIELD COMMUNICATION DEVICE

    公开(公告)号:US20240014809A1

    公开(公告)日:2024-01-11

    申请号:US18345726

    申请日:2023-06-30

    CPC classification number: H03K3/0315 H03K5/1252

    Abstract: A clock generator circuit includes an oscillator circuit coupled to a bias circuit. The bias circuit includes a current mirror, third and fourth transistors, and a cascode transistor. The current mirror includes a reference transistor and a set of copy transistors that are programmable. The third transistor has a source connected to a cold spot, a drain and a gate connected to this drain. The fourth transistor has a source connected to the drain of the third transistor, a drain, and a gate connected to that drain. The cascode transistor has a source connected to a drain of at least one of the copy transistors, a drain, and a gate connected to the gate of the fourth transistor. The gates of the fourth transistor and the cascode transistor are thicker than the gates of the reference transistor, each copy transistor, and the third transistor.

    Device and method for receiving data in a radio frequency transmission

    公开(公告)号:US11616516B2

    公开(公告)日:2023-03-28

    申请号:US17664987

    申请日:2022-05-25

    Abstract: According to one aspect, an embodiment radio frequency receiver device comprises an input interface configured to receive a radio frequency signal of a given type and convert same into an electric signal, a detector configured to detect at least one voltage level in the electric signal, a pulse generator configured to generate at least one pulse train representative of the voltage levels detected, and a processing unit configured to determine the type of the radio frequency signal from the at least one pulse train.

    Method of adjusting a read margin of a memory and corresponding device

    公开(公告)号:US11538519B2

    公开(公告)日:2022-12-27

    申请号:US17011634

    申请日:2020-09-03

    Abstract: Methods and devices for adjusting a read threshold voltage of bitlines are provided. One such method includes adjusting a read threshold voltage of bitlines coupled to memory points of a memory circuit. The read threshold voltage is initially set to a first value. First data are written in the memory points and second data are read from the memory points. The second data are compared to the first data, and the threshold voltage is decreased by a second value in response to a comparison error of one of the second data with the corresponding first data.

    Radio frequency (RF) module
    338.
    发明授权

    公开(公告)号:US11515905B2

    公开(公告)日:2022-11-29

    申请号:US16951709

    申请日:2020-11-18

    Inventor: Vincent Knopik

    Abstract: A radio frequency module with common access point (1) comprising a common access point (2) adapted to send and receive radio frequency signals, said common access point (2) having a common access point impedance, a first radio frequency communication circuit (6) and a second radio frequency communication circuit (8), a first balun (10) coupled to the first radio frequency communication circuit (6) by first ports (11a, 11b) wherebetween a first impedance (Z1) varying between a high value and a low value is established, and a second balun (20) coupled to the second radio frequency communication circuit (8) by second ports (21a, 21b) wherebetween a second impedance (Z2) varying between a high value and a low value is established, wherein the radio frequency module with common access point (1) comprises an impedance matching circuit (18) connected between the first ports (11a, 11b) in parallel with the first balun (10), and a switch (16) configured to open and close the impedance matching circuit (18).

    ESTIMATION OF A DISTANCE OFFSET IN AN INDIRECT TIME-OF-FLIGHT MEASUREMENT DEVICE, AND CORRESPONDING DEVICE

    公开(公告)号:US20220308224A1

    公开(公告)日:2022-09-29

    申请号:US17651723

    申请日:2022-02-18

    Inventor: Antoine Chouly

    Abstract: A method for determining a distance offset between a depth map of an indirect time-of-flight measurement device and a reference ground truth map includes emitting emission optical radiation by an emission circuit of the indirect time-of-flight measurement device. The emission optical radiation is sequentially modulating by N modulation frequencies. N is greater than or equal to three. The method further includes receiving, by a reception circuit of the indirect time-of-flight measurement device, reception optical radiation generated by the emission optical radiation reflected off objects of a scene and by optical crosstalk between the emission optical radiation and the reception optical radiation, and estimating the distance offset based on the reception optical radiation.

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