Stmicroelectronics S.a.

Stmicroelectronics S.r.l.

Stmicroelectronics (alps) Sas

Stmicroelectronics Gmbh

St-ericsson Sa

Stmicroelectronics (grenoble 2) Sas

Stmicroelectronics (research & Development) Limited

Alexandre Balmefrezol

Patrizia Milazzo

Giuseppe Platania

Jerome Nebon

Vincenzo Polisi

Jeffrey M Raynor

Patrik Arno

Laurence Stark

Rui Xiao

Jean-Luc Patry

Frederic Morestin

Jérôme Nebon

The present disclosure is directed to an image sensor including a pixel array of both range pixels and color pixels. Each range pixel (or range pixel area) may be associated with multiple adjacent color pixels, with each side of the range pixel immediately adjacent to at least two color pixels. The association between the range pixels and the color pixels may be dynamically configurable. The readings of a range pixel(s) and the associated color pixels may be integrated together in the generation of a 3D image.

Color pixel and range pixel combination unit

A method of controlling a current flowing through a load including the steps of: applying a first transfer function representative of the load to a first voltage to obtain a second voltage; applying the second voltage to a first terminal of a circuit for generating the current; sampling a third voltage between first and second terminals of the load; comparing the third voltage with the second voltage; and determining the current to be supplied to the load according to the result of the comparison.

Device for controlling a current in a load having an unknown current-vs.-voltage characteristic

A pixel has a photodiode configured to be sensitive to light. The pixel is arranged to use back side illumination. The pixel has at least one sample and hold capacitor which is arranged on the side of the photodiode remote from a side on which light impinges. The capacitor overlies at least part of the photodiode.

Pixel and an array of pixels

A Power Management Circuit for a portable electronic device comprising an internal battery to be charged either through a first interface or through an AC_DC conversion circuit. The circuit comprises a first buck/boost converter having a Switched Mode Power Supply (SMPS) mode which can be controlled either in a buck or a boost mode, said first buck/boost controller being associated with a first external coil for the purpose of embodying a battery charging circuit through a first interface (USB). The circuit further comprises a second buck/boost converter which can also be controlled either in a buck or a boost mode. Bypass circuits are used for performing, under control of a control circuit, the bypass of either the voltage of the battery or the voltage generated by said buck/boost controllers when in boost mode to a second interface (SIM/MMC).

Power management circuit for a portable electronic device including USB functionality and method for doing the same

A DC-DC voltage down-converter for an electronic device supplied by a battery and having a bus interface for the interconnection with another electronic device capable of supplying electric power is provided. The DC-DC voltage down-converter includes a terminal coupled to a voltage supply line of the bus interface and operable to receive a input current from the another electronic device. The DC-DC voltage down-converter further includes an electric energy storage element coupled between the battery and the terminal, the electric energy storage element being operable to storage/release electric energy and a drive circuit arranged to control the storage/release of the electric energy storage element, so as to cause an electric power generated by the input current supplied by the another electronic device through the voltage supply line to re-charge the battery. The DC-DC voltage down-converter still further includes a input current feedback control circuit coupled to the terminal and arranged to monitor a value of the input current and generate a corresponding input current indication; the drive circuit configured to control the storage/release of the electric energy storage element according to the input current indication.

Method and apparatus for controlling the transfer of electric power to an electronic device supplied by a battery

A power management unit for a battery-operated electronic device having a bus interface for the interconnection with another electronic device, the power management unit including an electric energy storage element coupled between a battery of the battery-operated electronic device and a voltage supply line of the bus interface, the electric energy storage element being operable to charge/discharge electric energy; a drive circuitry arranged to control a charge/discharge of the electric energy storage element. The drive circuitry is operable to cause an electric power supplied by the other electronic device through the voltage supply line to re-charge the battery; or, in case the other electronic device does not supply electric power, cause the battery supply electric power to the other electronic device through the voltage supply line. The power management unit is particularly adapted for battery-operated, mobile USB OTG devices.

Power management unit for battery-operated devices

A switching power supply source including an inductance with first and second terminals; an output node; an NMos transistor, the drain of which is connected to the first terminal; a PMos transistor, the drain of which is connected to the first terminal; a control device generating control signals for NMos and PMos transistors assuring that these transistors are not conducting simultaneously; a capacitor with a third terminal connected to the first terminal and a fourth terminal; a resistance with a fifth terminal connected to the fourth terminal and a sixth terminal; and an NMos transistor the drain of which is connected to the grid of the PMos transistor and the gate of which is connected to the fourth terminal.

Switching power supply source

A switched mode power supply device comprising a power transistor periodically set to conduction and supplying a regulated voltage that comprises a ramp generation circuit controlled by a clock signal and periodically generating a ramp voltage. The device includes an amplifier error circuit between a reference voltage and said regulated output voltage and generates an error signal, and a comparator comparing the ramp voltage with said error voltage and providing an output signal for controlling said power circuit. The circuit is characterized in that it comprises a delay element delaying the setting to conduction of the power transistor so as to desynchronize the starting of the ramp and said setting to conduction.

Growing community of inventors

Sassenage, France

Alexandre Balmefrezol