Patent ID: 8305498

Claim:
A system for equalizing signal data, said system comprising: an antenna that receives said signal data, wherein said signal data comprises a luminance carrier comprising a luminance channel and a chrominance carrier comprising a chrominance channel; an analog-to-digital converter coupled to said antenna that converts the received signal data to digital signal data; an instruction memory storing digital equalizer instructions; and a digital equalizer system, coupled to said memory and said analog-to-digital converter, wherein said digital equalizer system processes said digital equalizer instructions to: estimate a noise variation of said luminance channel; equalize said luminance channel; and equalize said chrominance channel, wherein the equalization of said chrominance channel is separate and distinct from the equalization of said luminance channel wherein said signal data comprises an analog television signal and said analog television signal comprises a blanking period and said blanking period comprises an Hsync, a front porch, and a back porch, wherein said Hsync, said front porch, and said back porch comprise an amplitude of said analog television signal at a predetermined value for a predetermined amount of time, wherein said digital equalizer comprises a luminance equalizer, wherein said luminance equalizer equalizes said luminance channel, and wherein said luminance equalizer: samples said blanking period; accumulates said samples; calculates a received sample mean by calculating a mean of said samples; and calculates a channel estimate by dividing said received sample mean by a stored sample mean.