Patent ID: 6819721
Filing Date: 2004-11-16
Classification: H03G

Abstract:
A limiter apparatus comprising:an instantaneous power calculator for calculating an instantaneous power value from transmission data; a limit value setting section for setting a limit value; a comparator for comparing the instantaneous power value with the limit value; a correction determining section for determining whether transmission data is to be corrected, depending on the comparison result of the instantaneous power value and the limit value; and a correction operating section for correcting the transmission data based on a correction value determined by said correction determining section; wherein the instantaneous power calculator calculates the square value of parallel input I channel and Q channel transmission data without performing root operation of the data, wherein the comparator includes a subtracter-comparator for subtracting the limit value from the instantaneous power value calculated by the instantaneous power calculator to compare the square value of the instantaneous power with the limit value.