Leadtek Research Inc.

Meng-Hsien Liu

James Cheng

The present invention discloses an integrated PCI interface card and the bus system thereof. The integrated PCI interface card of the present invention includes at least two bus masters, a control unit and one multiplexer. The control unit is used in generating the bus request and bus acknowledge signals of the at least two bus masters. The multiplexer is used in selecting an unused address line to be the identification selection signal of one of the at least two bus masters.

Integrated PCI interface card and bus system thereof

A method for transmitting audio and visual data over a communication means. If the bandwidth over a communication means drops below a predetermined level a video conference system can begin transmitting visual data in a QCIF format, another system receiving the data and scaling the data from the QCIF format to a CIF format. In another embodiment of the invention if the bandwidth drops below a first or second predetermined level the audio format can be altered to lower the bandwidth requirements accordingly. In a third embodiment the methods for lowering the utilized bandwidth of the audio and visual data can be used in conjunction with each other.

Real-time video/audio quality adjustment method

A signal switch apparatus includes a signal switch component, which is connected to a interrupt controller, a high level signal, and two PCI slots. Only when the SCSI card is inserted into the first PCI slot, is the interrupt signal sent by the SCSI card transmitted to the interrupt controller through the signal switch component. When the RAID card is inserted into the first PCI slot and the SCSI card is inserted into the second PCI slot, the interrupt signal sent by the SCSI card is transmitted to the RAID card through the signal switch component.

Growing community of inventors

Taoyuan, Taiwan

Meng-Hsien Liu