Patent ID: 8171069
Filing Date: 2012-05-01
Classification: H04N,H04Q

Abstract:
1. A method of filtering a digital data stream, comprising: providing a digital data processing circuit comprising a data processing unit, a pointer processing unit and control logic, said data processing unit and said pointer processing units connected to said control logic, said pointer processing unit consisting of n serially connected pointer processing stages from a first pointer processing stage to a last pointer processing stage, all pointer processing stages of said pointer processing unit including a pointer register, second to next to last pointer processing stages of said pointer processing unit including a multiplexer, wherein n is a positive integer greater than 2, said data processing unit consisting of n serially connected data processing stages from a first data processing stage to a last data processing stage, each data processing stage of said data processing unit including a multiplexer, a data register and a comparator, and providing one or more filter output stages connected to said data processing unit; and performing: