Avago Technologies Ecbu IP (singapore) Pte. Ltd.

Lite-on Technology Corporation

Lian Chun Xu

John Julius Asuncion

Shan Chong Tan

Wai Keat Tai

Kok Soon Yeo

Chee Keong Teo

Kwang Beng Ooi

Wai Keat Tal

An Electrical Fast Transient/Burst (EFT/B) detection and recovery system for a Universal Serial Bus (USB) device. The system includes a USB core and a burst controller. The USB core provides serial communications with a host device through a USB data channel. The burst controller is coupled to the USB core. The burst controller detects an EFT/B event and automatically reconnects the USB core to the host device in response to recognition of a suspend state of the USB core by the host device.

Detection of and recovery from an electrical fast transient/burst (EFT/B) on a universal serial bus (USB) device

An optical navigation system and method of controlling the light output power of the system uses an optical feedback system to control the driving signal being applied to a light source of the optical navigation system.

Optical navigation system and method of controlling the light output power of the system

An optical receiver has a voltage supply, a first node, and a second node. A first input of a differential amplifier is coupled to the first node and a second input of the differential amplifier is coupled to the second node. A photodetector is coupled between the voltage supply and the first node, which produces a photodetector capacitance. A programmable variable capacitor having a capacitance selectively matched to the photodetector capacitance is coupled between the voltage supply and the second node.

Optical receiver with matched photodetector capacitance

A circuit has a voltage source, a node, a photodetector electrically coupled between the voltage source and the node, a resistor electrically coupled between the node and ground, and a voltage clamp electrically connected to the node, the voltage clamp configured to maintain a reverse bias of the photodetector above a predetermined level.

Growing community of inventors

Singapore, Singapore

Lian Chun Xu