For time slot type data transmission the automatic gain automatic gain control mechanism which strengthens the functions

摘要

According to this invention, automatic gain automatic gain control (AGC) as for method, with offset factor using the profit which finally was calculated from the same time slot of the frame before, the digital AGC circuit which is decided (13) due to it applies the early profit, to a certain time slot. When block (17) the number of saturation data samples which are detected in inside exceeds threshold, elimination function (14) it makes active vis-a-vis the data sample block of given. It can by the AGC circuit, the electrical measurable quantity which is used in order to renew profit is adjusted is saturated on the basis of the number of measurement data samples. These elements offer profit restriction function, make the restriction of the dynamic range for further signal processing possible.