Realtek Semiconductor Inc.

Chih-Fu Tsai

Jia-Ching Shen

Tay-Her Tsaur

Kuo-Sheng Chung

The present invention discloses a network apparatus and enabling method thereof. During the procedure of voltage biasing or host booting, an enabling signal generated in this network apparatus is provided for enabling the internal application circuit at first. At the time of data connection between the network apparatus and a corresponding host apparatus, the host apparatus is able to enable or disable the application circuit of the network apparatus via a predetermined pin.

Network apparatus and method in a computer system operating a boot-strap or a work period

The present invention relates to a method and a circuit for power switching. The method comprises the steps of: providing a operation circuit; receiving a command from a Host and setting up a power mode of the operation circuit; supplying a first rated consuming power source and then a second rated consuming power source to the operation circuit via the power switching circuit according to power mode; detecting the transferring process form the first rated consuming power source to second rated consuming power source; and preventing over current according to detecting result.

Methods and circuits for power switching

An electronic apparatus has a stand-by mode. The electronic apparatus includes a first circuit, a second circuit and a third circuit. The first circuit has an interface and transfers data to an external device. The second circuit has a processor and sets a first power supplying mode of the first circuit. The third circuit sets a second circuit power supplying mode of the second circuit and sets a second power supply mode of the first circuit when the second circuit is disabled. The processor selects a first circuit power supplying mode from power supplying modes of the first circuit as the second power supplying mode before the second circuit is disabled.

Electronic apparatus having stand-by mode and operation method thereof

The present invention relates to an electronic device, which comprises: a first module, comprising an I/O pad for being an interface between the electronic device and an external device, and receiving a first bias source; a second module, coupled to the first module, comprising a register, and receiving a second bias source; and a signal converter, coupled between the first module and the second module. Wherein when one of the first and second bias sources is stable and the other is unstable, the signal converter outputs a first predetermined bias value to the first or second modules receiving the unstable bias source.

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Kaohsiung County, Taiwan

Chih-Fu Tsai