Quanta Computer Incorporated

Tai-Shing Wan

Wen-Ji Tsai

Tai-Lin Wu

A communication system having a common ground mechanism is provided. The communication system comprises a local host, a local telephone device, a sound input path and a sound output path. The local telephone device is connected to a remote telephone device through a telecom facility. The sound input path comprises a first transformer module and is connected between the local telephone device and the local host such that the local telephone device may transfer a sound input to the local host. The sound output path comprises a second transformer module and is connected between the local telephone device and the local host such that the local telephone device may receive a sound output from the local host. The first and the second transformer modules couple a first ground of the telecom facility and a second ground of the local host together such that the first and second grounds are common-grounded.

Communication system having common ground mechanism

A main board with a base comprising a first port and a second port parallel to each other and with a gap formed therebetween. First and second connectors are selectively disposed on the base. When the first connector is disposed on the base, a first distance is formed between first pins and a standard surface. When the second connector is disposed on the base, a second distance is formed between second pins and the standard surface. The difference between the first and second distances is equal to the gap. The first connector connects PATA hard disk drive, and the second connector connects SATA hard disk drive.

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Taoyuan County, Taiwan

Tai-Shing Wan