Abstract: A network device is provided, which is connected to a receiver. The network device includes a signal processing unit and a transceiver unit. Prior to occurrence of a hardware interrupt event, the signal processing unit detects the connection configuration between the network device and the receiver and outputs a temporary signal corresponding to the configuration of connection. The transceiver unit, which is connected to the signal processing unit and the receiver, receives and stores the temporary signal so that, when a hardware interrupt event occurs, the transceiver unit generates a dying gasp corresponding to the temporary signal and transmits the dying gasp to the receiver.

Abstract: A testing method used to check if an application executed in an operating system is crashed. The operating system is provided with a first value corresponding to the application, and the first value is stored in a storage unit. The testing method includes the following steps: send a message in a predetermined time period to the application to request a feedback from the application, and adjust the first value stored in the storage unit to another value by proceeding a predetermined algorithm; reboot the operating system if the said another value is equal to a second value; reset the said another value stored in the storage unit to the first value if the application gives the feedback.

Abstract: A network device is provided, which is connected to a receiver. The network device includes a signal processing unit and a transceiver unit. Prior to occurrence of a hardware interrupt event, the signal processing unit detects the connection configuration between the network device and the receiver and outputs a temporary signal corresponding to the configuration of connection. The transceiver unit, which is connected to the signal processing unit and the receiver, receives and stores the temporary signal so that, when a hardware interrupt event occurs, the transceiver unit generates a dying gasp corresponding to the temporary signal and transmits the dying gasp to the receiver.

Abstract: A testing method used to check if an application executed in an operating system is crashed. The operating system is provided with a first value corresponding to the application, and the first value is stored in a storage unit. The testing method includes the following steps: send a message in a predetermined time period to the application to request a feedback from the application, and adjust the first value stored in the storage unit to another value by proceeding a predetermined algorithm; reboot the operating system if the said another value is equal to a second value; reset the said another value stored in the storage unit to the first value if the application gives the feedback.