RADIO FREQUENCY DOUBLER AND TRIPLER
    171.
    发明公开

    公开(公告)号:US20240056063A1

    公开(公告)日:2024-02-15

    申请号:US18492597

    申请日:2023-10-23

    Inventor: Lionel Vogt

    CPC classification number: H03K5/00006

    Abstract: In an embodiment a radiofrequency doubler includes a first transistor and a second transistor connected in parallel between a first differential output and a first terminal of a current source configured to provide a bias current, a second terminal of the current source being connected to a first supply potential, a third transistor connected between the first terminal of the current source and a second differential output, a circuit configured to apply an AC component of a first differential input and a first DC voltage to a gate of the first transistor, apply an AC component of a second differential input and the first DC voltage to a gate of the second transistor and apply a second DC voltage to a gate of the third transistor, and a feedback loop configured to control the first voltage or the second voltage from a difference between DC components of the first and second differential outputs so as to equalize the DC components.

    METHOD AND APPARATUS FOR ESTIMATING A VALUE IN A TABLE GENERATED BY A PHOTOSITES MATRIX

    公开(公告)号:US20240048863A1

    公开(公告)日:2024-02-08

    申请号:US18482117

    申请日:2023-10-06

    CPC classification number: H04N25/60 H04N23/843 H04N25/13 H04N25/705

    Abstract: An embodiment method for estimating a missing or incorrect value in a table of values generated by a photosite matrix comprises a definition of a zone of the table comprising the value to be estimated and other values, referred to as neighboring values, and an estimation of the value to be estimated based on the primary neighboring values and the weight associated with these primary neighboring values, wherein a weight of each neighboring value, referred to as primary neighboring value, of the same colorimetric component as that of the missing or incorrect value to be estimated, is determined according to differences between neighboring values disposed on an axis and neighboring values disposed parallel with this axis and positioned in relation to this axis on the same side as the primary neighboring value for which the weight is determined.

    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.

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