Abstract: A power over Ethernet device is provided. The power over Ethernet device includes a first Ethernet connector, an Ethernet transformer circuit, and a detection circuit. The first Ethernet connector is coupled to a second Ethernet connector of a network device via an Ethernet cable and has a first reserve pin and a second reserve pin. The Ethernet transformer circuit is coupled to the first Ethernet connector to provide a supply voltage to the Ethernet cable to transfer the supply voltage to the network device. The detection circuit receives the supply voltage and is coupled to the Ethernet transformer circuit, the first reserve pin, and the second reserve pin to provide a reference voltage to the first reserve pin and receives an identification voltage from the second reserve pin to determine whether the network device is a powered device.

Abstract: A power over Ethernet device is provided. The power over Ethernet device includes a first Ethernet connector, an Ethernet transformer circuit, and a detection circuit. The first Ethernet connector is coupled to a second Ethernet connector of a network device via an Ethernet cable and has a first reserve pin and a second reserve pin. The Ethernet transformer circuit is coupled to the first Ethernet connector to provide a supply voltage to the Ethernet cable to transfer the supply voltage to the network device. The detection circuit receives the supply voltage and is coupled to the Ethernet transformer circuit, the first reserve pin, and the second reserve pin to provide a reference voltage to the first reserve pin and receives an identification voltage from the second reserve pin to determine whether the network device is a powered device.

Abstract: An input authentication method for verifying an accuracy of a password data inputted by a user, comprising the steps providing a sensing unit for sensing and reading a decryption data inputted by the user; providing a timing unit used for calculating decryption time intervals lapsed between decryption passwords of the decryption data; providing a recording unit for recording predefined encryption data and corresponding encryption time intervals as well as the decryption data and the decryption time intervals corresponding to the decryption passwords; providing a password verification unit for comparing whether the encryption data matches with the decryption data inputted; and providing a time interval verification unit for generating a number of tolerance intervals based on the predefined tolerance degrees set by the user in order to determine whether the decryption data inputted by the user is accurate based on whether the decryption time intervals inputted by the user are within the corresponding tolerance

Abstract: In a method for measuring a metabolic rate of a user, an electronic device is configured to: output a first instruction to instruct the user to pronounce a first specified sound at rest; record a first vocal signal associated with the first specified sound pronounced by the user; output a second instruction to instruct the user to pronounce a second specified sound at exercise; record a second vocal signal associated with the second specified sound pronounced by the user; and evaluate the metabolic rate of the user according to the first vocal signal, the second vocal signal, and a maximum oxygen uptake of the user that is pre-obtained by the electronic device.

Abstract: In a method for measuring a metabolic rate of a user, an electronic device is configured to: output a first instruction to instruct the user to pronounce a first specified sound at rest; record a first vocal signal associated with the first specified sound pronounced by the user; output a second instruction to instruct the user to pronounce a second specified sound at exercise; record a second vocal signal associated with the second specified sound pronounced by the user; and evaluate the metabolic rate of the user according to the first vocal signal, the second vocal signal, and a maximum oxygen uptake of the user that is pre-obtained by the electronic device.