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This paper describes the development of a protocol transfer module for universal serial bus interface version 2.0 USB2.0-to-IEEE 1394 interface using synchronous packet control for audio and video (AV) data streams. This protocol transfer module can easily transmit AV data streams from a personal computer (PC) embedded USB2.0 interface port to a digital video camcorder (DVC) unless the AV data stream unsynchronizes between the USB2.0 and IEEE 1394 interfaces. This protocol transfer module is used for transmitting and editing AV data streams on PC and AV consumer appliances standardized with IEEE 1394. USB2.0 and IEEE 1394 interfaces are largely used for consumer electronics appliances especially home network devices. This protocol transfer module is used for AV consumer appliances standardized with IEEE 1394.