Genesys Logic, Inc.

Wei-te Lee

Shin-te Yang

Chih-jung Lin

Yen-fah Chu

Wen-ming Huang

Chien-kang Cheng

The present invention provides a power supply controlling module, which is suitable for a power supply controlling device. The power supply controlling device comprises a power source and a plurality of connecting ports. The power supply controlling module comprises a plurality of control units and a resistance. Each of the control units respectively connects with each of the connecting ports. The control units comprise a first control unit and at least one second control unit. The resistance electrically connects with the control units. The first control unit comprises a detecting circuit and a first control circuit, which respectively connects with the resistance. Each of the at least one second control unit comprises a second control circuit, which respectively connects with the resistance.

Power supply control unit, controlling module, controlling device and controlling method of the same

A universal serial bus (USB) hub for connecting different port types and method thereof are provided. In one embodiment, USB controller detects the power level of each dynamic port to determine whether one of the dynamic ports is connected to the host device wherein the connected dynamic port is defined as upstream port. The disconnected dynamic port of the dynamic ports is defined as downstream port to be connected to the peripheral device. In another embodiment, the USB controller selectively disables the disconnected dynamic port of the dynamic ports. The present invention improves the application flexibility of connecting wire between the hub and the host device.

Universal serial bus (USB) hub for connecting different port types and method thereof

A dynamic power management system for USB hub and method thereof are described. The dynamic power management system includes a host device, a power unit and a hub device. A power management module disposed in the hub device dynamically adjusts the power-supplying statuses of ports in the hub device and further reduces the cost of power transformer externally connected to the hub device.

Power management system for dynamically downgrading or upgrading the speed of individual USB ports on a USB hub based on available and requested power

A serial bus clock frequency calibration system and a method thereof are disclosed herein. The system utilizes a first frequency calibration device, a second frequency calibration device and a third frequency calibration device to share the same oscillator as so to perform multi-stage clock frequency resolution calibrations for different frequency-tuning ranges. This can bring an optimal frequency resolution, greatly reduce system complexity and save element cost.

Serial bus clock frequency calibration system and method thereof

A serial bus clock frequency calibration system and a method thereof are disclosed herein. The system utilizes a first frequency calibration device and a second frequency calibration device both to share an oscillator as so to perform two-stage clock frequency resolution calibrations for generating different frequency-tuning ranges. This can bring an optimal frequency resolution and greatly reduce system complexity and save element cost.

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Banqiao, Taiwan

Wei-te Lee