Abstract: The present invention provides a network system supporting a plurality of physical layers and the method thereof. The driver system and the method thereof utilizes the basic input/output system of the computer system to setup the network physical layer that is physically connected, and to calculate the simulation device code corresponding to the selected network physical layer according to the setup and the device code read from the network interface adapter, so that the computer system is able to recognize and enable the appropriate device driver of the physical layer. Therefore, the user is able to change the physical layer that is physically connected without reloading the device driver corresponding to the physical layer that is physically connected again and again, and also doesn't have to reconfigure the communication protocol parameters.

Abstract: A transmission method for identifying infrared transmission head is provided. The infrared transmission head is coupled to the infrared transmission head through an infrared controller. The infrared controller is set to a test circuit mode. The infrared controller is programmed according to the test transmission mode associated with the test brand name of the infrared transmission head and test transmission data is transmitted. In the meantime, the infrared controller receives reception test data from the infrared transmission head according to the test transmission mode associated with the test brand name of the infrared transmission head. If the transmission test data and the reception test data are identical, the test brand name and associated test transmission mode are registered. The infrared transmission head operates according to the registered test brand name and associated test transmission mode of the infrared transmission head.

Abstract: Disclosed is a codec (coder/decoder) system with shadow buffers and method of performing a Power Down/Suspend mode operation on this codec system, which allows all the codecs in the codec system to know the operating status of each other so that system crash can be prevented during a power down/suspend operation. The codec system includes two or more codecs and associated codec controllers, with each codec controller including a status data buffer and a shadow buffer; and each codec controller utilizes the status data buffer therein for registering the operating status thereof and meanwhile utilizes the shadow buffer therein for storing a copy of the operating status data stored in the status data buffer of the other codec controller. The provision of the shallow buffers allows all the codecs in the codec system to be capable of knowing the operating status of each other. This feature can help prevent system crash during power down/suspend operation.

Abstract: Disclosed is a codec (coder/decoder) system with shadow buffers and method of performing a Power Down/Suspend mode operation on this codec system, which allows all the codecs in the codec system to know the operating status of each other so that system crash can be prevented during a power down/suspend operation. The codec system includes two or more codecs and associated codec controllers, with each codec controller including a status data buffer and a shadow buffer; and each codec controller utilizes the status data buffer therein for registering the operating status thereof and meanwhile utilizes the shadow buffer therein for storing a copy of the operating status data stored in the status data buffer of the other codec controller. The provision of the shallow buffers allows all the codecs in the codec system to be capable of knowing the operating status of each other. This feature can help prevent system crash during power down/suspend operation.