Patent ID: 6831805
Filing Date: 2004-12-14
Classification: G11B

Abstract:
A method to read and/or write information from and/or to a moving magnetic tape using a tape head disposed adjacent said magnetic tape, wherein said tape head includes (N) servo sensors and wherein said magnetic tape includes (N) servo edges, each servo edge comprising an interface between a first recorded signal and a second recorded signal, wherein each of said (N) servo sensors detects said first recorded signal and said second recorded signal, said method comprising the steps of:determining (N) target PES signals, wherein the (i)th target PES signal is established for the (i)th servo sensor, and wherein (i) is an integer greater than or equal to 1 and less than or equal to (N); providing (N) measured PES signals, wherein the (i)th servo sensor provides the (i)th measured PES signal; calculating (N) deviations, wherein Di comprises the absolute magnitude of the difference between the (i)th measured PES signal and the (i)th target PES signal; assigning (N) Weight Factors, wherein WFi comprises the assigned Weight Factor for the (i)th measured PES signal, and wherein WFi is inversely proportional to Di; forming (N) weighted PES signals, wherein the (i)th weighted PES signal is formed by multiplying the (i)th Weight Factor times the (i)th measured PES signal; computing a Composite PES signal using said (N) weighted PES signals; positioning said tape head using said Composite PES signal.