Abstract: An operation method of a network device and a control chip of the network device are provided. The network device receives an input signal through a fiber medium. The operation method includes the following steps: setting a target speed of the network device to a first speed; transmitting and/or receiving a data at the first speed; and setting the target speed of the network device to a second speed which is different from the first speed when the amplitude or energy of the input signal is not greater than a threshold.

Abstract: An operation method of a network device and a control chip of the network device are provided. The network device receives an input signal through a fiber medium. The operation method includes the following steps: setting a target speed of the network device to a first speed; transmitting and/or receiving a data at the first speed; and setting the target speed of the network device to a second speed which is different from the first speed when the amplitude or energy of the input signal is not greater than a threshold.

Abstract: A communication apparatus with transmitted rate detecting function and the method therefore is provided. The communication apparatus receives an input signal transmitted at a first rate or a second rate from a remote apparatus. The method includes setting the communication apparatus to operate at an initial receiving rate; sampling the input signal by a specific sampling frequency to generate a sample result; estimating the input transmitted rate of the input signal according to the sample result so as to set the receiving rate of the communication apparatus at a working rate; and communicating with the remote apparatus at the working rate. The second rate is higher than the first rate, and the specific sampling frequency is associated with the initial receiving rate.

Abstract: A communication apparatus with transmitted rate detecting function and the method therefore is provided. The communication apparatus receives an input signal transmitted at a first rate or a second rate from a remote apparatus. The method includes setting the communication apparatus to operate at an initial receiving rate; sampling the input signal by a specific sampling frequency to generate a sample result; estimating the input transmitted rate of the input signal according to the sample result so as to set the receiving rate of the communication apparatus at a working rate; and communicating with the remote apparatus at the working rate. The second rate is higher than the first rate, and the specific sampling frequency is associated with the initial receiving rate.

Abstract: This invention relates to an insulator for a multi-power system, which is used to resolve the current leakage which comes from each power supplied to the corresponding devices which are not being correctly operated. The isolating device includes: a first power supply for providing an operating power to the isolating device; a level detector for detecting the voltage level of the operating power; a signal isolation controller for changing the output level of the circuit supplied by the operating power based on the operating power detected; and a second power for supplying a real-time power to circuit for power saving operation based on the changed output level.

Abstract: This invention relates to an insulator for a multi-power system, which is used to resolve the current leakage which comes from each power supplied to the corresponding devices which are not being correctly operated. The isolating device includes: a first power supply for providing an operating power to the isolating device; a level detector for detecting the voltage level of the operating power; a signal isolation controller for changing the output level of the circuit supplied by the operating power based on the operating power detected; and a second power for supplying a real-time power to circuit for power saving operation based on the changed output level.