Halo Microelectronics Co., Ltd.

Fairchild Semiconductor Corporation

Huntsman Petrochemical Corporation

Shanghai Bilibili Technology Co., Ltd.

Shanghai Jemincare Pharmaceuticals Co., Ltd.

Jiangxi Jemincare Group Co., Ltd.

Jun Fan

Yang Liu

Rui Liu

Wei-Yang Su

Liang Zhao

Hai Tao

Haibing Guo

Chaoran Li

Jianbiao Peng

Shuang Han

Shuchun Guo

Xiaolong Li

Xiaoliang Tan

Yicong Mei

Fang Bao

Zhicong Zang

Yiyi Zhou

Sunrui Liu

Jinhao Zhang

Xinkuan Han

Peian Zou

Chaojie Chen

Disclosed in the present invention are a fused pyridone compound, and a preparation method therefor and a use thereof. Specifically, the present invention discloses a compound of formula (I-B), an optical isomer thereof and a pharmaceutically acceptable salt thereof, and the use of the compound as a KRAS inhibitor.

Fused pyridone compound, and preparation method therefor and use thereof

The present application provides techniques for processing bullet screens. The techniques comprises determining a target bullet screen based at least in part on a number of likes received by each bullet screen associated with a target multimedia resource; obtaining attribute information of the target bullet screen comprising a resource time point indicating a time point of displaying the target bullet screen in the target multimedia resource; determining a target time point in the target multimedia resource from which the target multimedia resource starts to play based at least in part on the resource time point; generating prompt information based on the target bullet screen, the attribute information of the target bullet screen, attribute information of the target multimedia resource, and the target time point; and sending the prompt information to a target client computing device.

Bullet comment processing method and apparatus

A current detection circuit includes a current sampling branch, a switch branch, a first current mirror branch, a capacitor branch, a feedback branch and a control branch. The control branch receives the second current and outputs the first current and the first voltage signal. The current sampling branch outputs a first discharging current. The switch branch establishes and disconnects the connection between the first current mirror branch and the capacitor branch. The capacitor branch is charged in response to the first charging current and discharged in response to the first discharging current. The first current mirror branch outputs the first charging current. The feedback branch adjusts the second charging current to adjust the first charging current, so that the total charge of the capacitor branch is balanced with the total charge of discharge within one switching cycle, so that the first current is represented by the first charging current.

Current detection circuit and method

An apparatus includes a first group of switches connected in series, a second group of switches connected in series, a first flying capacitor between a first common node and a third common node of the first group of switches, a second flying capacitor between a first common node and a third common node of the second group of switches, wherein the first group of switches and the second group of switches are configured such that the apparatus operates in one of three operating modes including a bypass operating mode, a hybrid operating mode and a boost/buck operating mode.

Power conversion circuit, power conversion system and power chip

The present disclosure provides a lubricating oil concentrate containing an ethoxylated ether amine and a base oil. The lubricating oil concentrate is capable of forming a stable, low foaming emulsion when added to an aqueous medium and may be useful in metalworking and cleaning fluids.

Emulsifier for lubricating oil concentrate

An error amplifier of a low dropout regulator includes a compensation network configured to adapt the error amplifier to varying load currents. The compensation network may be coupled to an amplifier stage of the error amplifier. For example, the compensation network may be coupled across an input and an output of the amplifier stage in a Miller connection. As another example, one end of compensation network may be coupled to an input of the amplifier stage with another end coupled to ground. The compensation network may have several resistors and capacitors that have corresponding parameter switches for switching the resistors and capacitors in and out of the compensation network to change a parameter of the compensation network based on load current.

Compensation network for error amplifier of a low dropout regulator

Growing community of inventors

Shanghai, China

Jun Fan