Patent ID: 8605225

Claim:
A Television (TV) receiver for faster channel switch times between a plurality of broadcasting TV channels with reduced latency in overall demodulation cycle for multiple demodulation standards, said TV receiver comprising: a tuner that receives said plurality of broadcasting TV channels from a broadcasting system, wherein said tuner performs a tuning operation and sets a desired frequency for each of said broadcasting TV channels during a channel scan operation; a demodulator coupled to said tuner, wherein said demodulator demodulates each of said broadcasting TV channels and acquires at least one acquisition channel parameter of each of said broadcasting TV channels during said channel scan operation; and an application processor coupled to said demodulator via an interface, wherein said application processor performs at least one of a read operation and a write operation of said acquisition channel parameters to memory mapped registers on said demodulator when a channel status switches from a first state to a second state, wherein said application processor downloads at least one of (i) a compression code, (ii) an acquisition mode code, and (iii) a tracking mode code on to said demodulator when said channel switch status changes for different modulation types based on said acquisition channel parameters, said application processor comprising: a channel list database that stores said acquisition channel parameters that correspond to each of said broadcasting TV channels, wherein said application processor updates said channel list database with said acquisition channel parameters and forcibly initializes a required acquisition channel parameter from said acquisition channel parameters when said channel status switches from one state to another state.