Patent ID: 6591092
Filing Date: 2003-07-08
Classification: H03G,H04L

Abstract:
An information receiving apparatus that receives an information signal having a valid time interval containing valid data and an invalid time interval containing invalid data, the apparatus comprising:amplification means for amplifying a received information signal; processing means connected to said amplification means for processing an output signal of said amplification; gain control means coupled to said amplification means for controlling a gain of said amplification means; and timing control means coupled to said gain control means for controlling a timing of a gain setting of said gain control means at an interval where said processing means does not perform processing for said valid data in said output signal of said amplification means, wherein said gain control means comprises comparing means coupled to said amplification means for comparing a signal level of said output signal of said amplification means and a predetermined reference level to generate an error signal; and filtering means coupled to said comparing means for deriving low frequency components of said error signal, wherein the low frequency components of said error signal are supplied as a gain control signal to said amplification means.