Direction-constrained ternary codes using peak and polarity...

Details Direction-constrained ternary codes using peak and polarity... Direction-constrained ternary codes using peak and polarity...

H - Electricity

03

M

354/106, 352/19

H03M 5/18 (2006.01) G11B 5/09 (2006.01) G11B 20/14 (2006.01)

Patent

CA 1213062

DIRECTION-CONSTRAINED TERNARY CODES USING PEAK AND POLARITY DETECTION Abstract of the Invention A class of ternary square wave signals is detectable by peak polarity detection alone without need for amplitude discrimination. The ternary codes are used to increase data density recording at the same clock rate as binary codes. This is satisfied by selective direction-constrained run length limited (RLL) signals. The direction constraint is that the half-step transitions can only occur in pairs of the same polarity. Alternate half-step pairs of opposite polarity are forbidden. This avoids the need for amplitude discrimination. The RLL (d,k) constraint includes "d" number of clock times when a transition is forbidden and "k > d" clock times within which consecutive transitions must occur. The latter determines a minimum frequency for clocking purposes. This eases peak shift detection.

481842

Affiliated with

Also associated with

Rating

Direction-constrained ternary codes using peak and polarity... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direction-constrained ternary codes using peak and polarity..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direction-constrained ternary codes using peak and polarity... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1207670