METHOD FOR SYNCHRONOUS DETECTION AND SPEED CONTROL OF SERIAL INPUTS IN VESTIGIAL SIDEBAND MODULATOR

摘要

PURPOSE: A method for synchronous detection and speed control of serial inputs in a vestigial sideband(VSB) modulator is provided by detecting an MPEG synchronization and forming a VSB transmission format from the inputted MPEG transmission stream. CONSTITUTION: A method for synchronous detection and speed control of serial inputs in a vestigial sideband(VSB) modulator comprises the steps of: detecting an inputted MPEG transmission stream and storing the stream in FIFO; detecting a synchronization by reading the FIFO with a bit clock and forming a VSB transmission format by reading data with a byte clock; and transmitting the data having the VSB transmission format to a VSB processor.