Run-length limited code without DC level

Communications: electrical – Audible indication – Percussion-type sound producer

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

340347M, 360 40, H03M 742

Patent

active

046756507

ABSTRACT:
Code modification circuitry alters the end portion of each block in a sequence of code blocks, and also inserts additional bits at the junction between contiguous blocks. The codes to be processed are run-length limited (RLL) codes having a DC component which is to be removed for certain applications such as magnetic recording. The modification circuitry retains the RLL format. Charge (or the integral of the waveform) accumulated by the sequence of bits of one block is compensated by selecting the sense of charge accumulation in next block to be of opposite sense. This is accomplished by the code modification circuitry using a relatively small set of possible combinations of digital words at the junctions of the blocks.

REFERENCES:
patent: 4387364 (1983-06-01), Shirota
patent: 4456905 (1984-06-01), Odaka
patent: 4547890 (1985-10-01), Gindi

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Run-length limited code without DC level does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Run-length limited code without DC level, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Run-length limited code without DC level will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-724319

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.