公开(公告)号：US12155298B2

公开(公告)日：2024-11-26

申请号：US17774476

申请日：2020-12-16

Applicant: EM Microelectronic-Marin SA

Inventor： Alessandro Venca

IPC: H02M3/07 ,  G11C5/14 ,  G11C29/02 ,  G11C29/50 ,  H02M1/00

Abstract: An open loop control unit is provided to monitor an output power of a charge pump converter having an input impedance and a first input impedance controlling terminal configured to be plugged to the open loop control unit and modify the input impedance. The open loop control unit includes at least a reference circuit to sense the output power of the charge pump converter and at least one control circuit to receive the difference value, establish a trim value, and send the trim value to the impedance controlling terminal so as to modify the input impedance.

公开(公告)号：US12153983B2

公开(公告)日：2024-11-26

申请号：US18251043

申请日：2021-11-01

Applicant: EM Microelectronic-Marin SA

Inventor： Paul Muller ,  Christophe Entringer ,  Pierre Muller ,  Thomas Coulot ,  Arthur Hugh MacDougall

IPC: G06K19/077

Abstract: An RFID assembly and an assembly method thereof are provided. The assembly method for an RFID assembly comprises a step of providing at least one integrated circuit which includes at least one IC contact and at least one dielectric layer, and a deposition of at least one electrical contact and of at least one re-passivation layer. The at least one electrical contact is deposited on at least one first portion and the at least one re-passivation layer is deposited on at least one second portion, which is distinct of the at least one first portion.

公开(公告)号：US12045405B2

公开(公告)日：2024-07-23

申请号：US18255618

申请日：2021-12-14

Applicant: EM Microelectronic-Marin SA

Inventor： Sylvain Grosjean ,  Jérémy Schlachter

IPC: G06F3/038 ,  G06F3/03 ,  G06F3/0354

CPC classification number: G06F3/038 ,  G06F3/0304 ,  G06F3/03543

Abstract: An embodiment of the invention relates to a method for sensing a displacement of a pointing device, like a mouse. The pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector and at least one primary photodetector. Each individual value of photodetectors is weighted and compared to sense the displacement of the pointing device by comparing a plurality of storage elements.

公开(公告)号：US11934598B2

公开(公告)日：2024-03-19

申请号：US18069581

申请日：2022-12-21

Applicant: EM MICROELECTRONIC-MARIN SA

Inventor： Jérôme Saby ,  Lorenzo Pierobon

IPC: G06F3/038 ,  G06F3/03 ,  H04N25/75

CPC classification number: G06F3/0383 ,  G06F3/0317 ,  G06F3/0325 ,  H04N25/75

Abstract: A displacement detection circuit (100) configured to implement a displacement detection method (500) for a pointing device (199) having at least one pixel array (190). The displacement detection circuit (100) includes at least one main calculator (110), at least one auxiliary calculator (111, 112, 113) at least one comparator (130) and at least one motion detector (150). The main calculator (110) is configured to calculate at least one main average (210) corresponding to the average of the at least one pixel array (190), which is compared to at least one auxiliary average (211, 212, 213) of the at least one auxiliary calculator (111, 112, 113). According to the result of the comparison, the at least one motion detector (150) indicates at least one direction (250) of displacement of the pointing device (199).

公开(公告)号：US20240036655A1

公开(公告)日：2024-02-01

申请号：US18257175

申请日：2021-12-14

Applicant: EM Microelectronic-Marin SA

Inventor： Sylvain GROSJEAN ,  Jérémy SCHLACHTER

IPC: G06F3/03

CPC classification number: G06F3/0304

Abstract: In a method for sensing a displacement of a pointing device, like a mouse, said pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector, and at least one primary photodetector. Each individual value of the photodetectors is weighted and compared such as to sense said displacement of the pointing device.

公开(公告)号：US20240014647A1

公开(公告)日：2024-01-11

申请号：US18302233

申请日：2023-04-18

Applicant: EM Microelectronic-Marin SA

Inventor： Jiri NERAD

IPC: H02H9/04

CPC classification number: H02H9/04

Abstract: A voltage limiter for a signal receiver (1), the voltage limiter (20) including: an input (21) connectable to a signal source (10); an output (22) connectable to a detector (70) and connected to the input (21) via a signal conductor (30); a ground conductor (40) connectable to ground (5); a first branch (24) connected to the signal conductor (30), connected to the ground conductor (40) and comprising a first diode element (52); a second branch (25) connected to the signal conductor (30), connected to the ground conductor (40) and comprising a second diode element (53); and a resistor element (36, 54, 55) between the signal conductor (30) and the ground conductor (40).

公开(公告)号：US20220393583A1

公开(公告)日：2022-12-08

申请号：US17774473

申请日：2020-12-16

Applicant: EM Microelectronic-Marin SA

Inventor： Alessandro VENCA

IPC: H02M3/07 ,  G06K19/07

Abstract: A power control unit is provided to control the efficiency of a charge pump converter having a first input terminal and a second input terminal, a primary attenuator and a secondary attenuator between a first input terminal and the second input terminal, a first output terminal, a second output terminal, a secondary attenuator controlling terminal and a primary attenuator controlling terminal to be plugged to the power control unit. The primary attenuator controlling terminal and the secondary attenuator controlling terminal are to attenuate or amplify a signal of the first input terminal and the second input terminal.

公开(公告)号：US20220393581A1

公开(公告)日：2022-12-08

申请号：US17770094

申请日：2020-11-05

Applicant: EM MICROELECTRONIC-MARIN SA

Inventor： Alessandro VENCA

IPC: H02M3/07 ,  H02M3/28 ,  H02M1/36

Abstract: Provided is a gate controller having a primary signal input which is AC coupled to the gate through a capacitor, one or more bias inputs each connected to the gate through a resistor such as to control the DC voltage bias of the gate and therefore the conductivity o the switching element. The bias inputs can be properly connected to internal nodes of the charge pump, or charge pump stages, such that the gate controller is self-biased, without using bias-reference external to the charge pump. The gate controller is programmable by using potentiometers in place of the bias resistors. The programmable gate controller stages can be connected to form a programmable gate controlled charge pump

公开(公告)号：US20210342557A1

公开(公告)日：2021-11-04

申请号：US17269552

申请日：2019-08-22

Applicant: EM Microelectronic-Marin SA

Inventor： James J. SPRINGER ,  Fabrice WALTER ,  Pierre MULLER ,  Fabien BOURQUIN

IPC: G06K7/10 ,  H04W4/80 ,  H04B5/00 ,  H04B5/02

Abstract: The present disclosure relates to a NFC communication system, to a method of establishing communication between a wireless communication device and a passive NFC device and to a passive NFC device. The passive NFC device includes an NFC controller, an NFC transceiver coupled with the NFC controller, and at least one persistent flag coupled with the NFC controller, the persistent flag being switchable between an activated state and a deactivated state. The NFC controller is configured to perform a logical operation being divisible into a sequence of at least a first subtask and a second subtask and the NFC controller is configured to ascertain the status of the persistent flag. The NFC controller is further configured to selectively perform at least one of the first subtask and the second subtask on the basis of the status of the persistent flag.

公开(公告)号：US10910945B2

公开(公告)日：2021-02-02

申请号：US16402905

申请日：2019-05-03

Applicant: EM Microelectronic-Marin SA

Inventor： Mathieu Coustans ,  Lubomir Plavec ,  Mario Dellea

IPC: H02M3/07

Abstract: The elementary pumping cell comprises an input (E) receiving an input voltage (Vin), a clock terminal (H) receiving a first clock signal (CK1) and an output (S), a first capacitor (C1) having a first terminal connected to the clock terminal and a second terminal, a first transistor (A1) having a first source/drain terminal coupled to the input, a second source/drain terminal and a gate terminal, a second transistor (A2) having a first source/drain terminal, a second source/drain terminal coupled to the input and a gate terminal coupled to the second terminal of the first capacitor, a third transistor (A3) having a first source/drain terminal coupled to the first source/drain terminal of the second transistor, a second source/drain terminal coupled to the gate terminal of the second transistor and a gate terminal coupled to the input, and a fourth transistor (A4) having a first source/drain terminal coupled to the second source/drain terminal of the first transistor, a second source/drain terminal coupled to the first source/drain terminal of the second and third transistors and a gate terminal coupled to the input. The gate terminal of the first transistor is coupled to the gate terminal of the second transistor.