US 7,568,081 B2
	Authenticating a data storage medium using predetermined inter-sector relationships
Douglas M. Carson, Cushing, Okla. (US)
Assigned to Doug Carson & Associates, Inc., Cushing, Okla. (US)
Appl. No. 10/483,477 PCT Filed May 14, 2003, PCT No. PCT/US03/15151 § 371(c)(1), (2), (4) Date Jan. 12, 2004, PCT Pub. No. WO03/098605, PCT Pub. Date Nov. 27, 2003.
Application 10/483477 is a continuation in part of application No. 09/860971, filed on May 18, 2001, granted, now 6,477,124.
Claims priority of provisional application 60/380709, filed on May 14, 2002.
Claims priority of provisional application 60/444030, filed on Jan. 31, 2003.
Claims priority of provisional application 60/249030, filed on Nov. 15, 2000.
Prior Publication US 2004/0168025 A1, Aug. 26, 2004
Int. Cl. G06F 12/14 (2006.01)

U.S. Cl. 711—163  [711/112; 369/275.1; 369/275.3]

39 Claims

1. A method comprising a step of formatting a data storage medium of the type in which data are stored in addressable sectors on a plurality of tracks using a predetermined profile that identifies a total number of channel bits to be recorded to the medium over each revolution of a plurality of revolutions of said medium so as to affirmatively establish a predefined relationship between physical locations of at least a first sector and a second sector prior to an initial recording of data to said at least first and second sectors, the presence of said predefined relationship between the resulting physical locations of the at least first and second sectors serving to identify the medium as an authorized copy.