Patent ID: 6973125
Filing Date: 2005-12-06
Classification: G06F,H04L,H04N

Abstract:
1. An apparatus for detecting a data transmission rate transmitted through a serial bus comprising a predetermined transmission line, the apparatus comprising: a data transmission rate detecting unit for detecting the data transmission rate of bit stream data transmitted through the predetermined transmission line; a sampler for sampling the data transmission rate detected by the data transmission rate detecting unit at a predetermined interval; a low-pass filter for low-pass filtering a value sampled by the sampler to produce a first low-pass filtered value; an error detecting unit for detecting and outputting an error value in the data transmission rate of the transmitted bit stream data using a value output by the sampler and the first low-pass filtered value; a comparing unit for comparing the error value output by the error detecting unit with a reference error level; and an estimated data transmission rate output unit for outputting an estimated data transmission rate based on the first low-pass filtered value when the error value is smaller than the reference error level.