Patent ID: 6377199
Filing Date: 2002-04-23
Classification: G06J,H03M,H04N

Abstract:
A signal processing system comprising:an analog processing circuit for perfoming a predetermined signal processing operation on an analog input signal; an A/D converter connected to the analog signal processing circuit for receiving a processed analog signal from the analog signal processing circuit and for converting the processed analog signal into at least one digital data having at least one bit; a complementary data generating circuit for receiving the digital data from the A/D converter and for producing sub-data containing at least one bit which is mutually complementary to the digital data, the complementary data generating circuit being operative whenever there is a change in at least one bit between consecutive bits of the digital data to maintain the status of a corresponding bit in the sub-data unchanged, and whenever there is no change in at least one bit between consecutive bits of the digital data to invert a corresponding bit in the sub-data; a first output circuit connected to the complementary data generating circuit for delivering the digital data; and a second output circuit connected to the complementary data generating circuit for delivering the sub-data.