Enhanced Miller code

Details Enhanced Miller code Enhanced Miller code

1985-08-12

1986-10-14

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

360 40, H03M 514

Patent

active

046175539

ABSTRACT:
An encoded signal free of dc content is provided by modifying the Miller encoding scheme for digital data streams. The digital data stream is broken up into a sequence of blocks delineated by a one-to-zero transition at the beginning of each block. Each block is further subdivided such that the first half contains only zeros and the second half contains only ones. The number of zeros and ones are counted and novel encoding rules are applied depending on whether the number of ones and zeros is odd or even. If both the number of zeros and ones is even or odd, or the number of zeros is even and the number of ones is odd, encoding is accomplished using standard Miller rules. If the number of zeros is odd and the number of ones is even, Miller rules are used except the last one in the group is ignored. When both the number of zeros and ones is odd, special encoding rules are applied to the next block, dependent on the content of the next block.

REFERENCES:
patent: 3108261 (1965-10-01), Miller
patent: 3631471 (1971-12-01), Griffiths
patent: 3810111 (1974-05-01), Patel
patent: 3905029 (1975-09-01), McIntosh
patent: 4027335 (1977-05-01), Miller
patent: 4183066 (1980-01-01), Anderson
patent: 4227184 (1980-10-01), Howells
patent: 4234897 (1980-11-01), Miller
patent: 4309694 (1982-01-01), Henry
patent: 4326282 (1982-04-01), Verboom
patent: 4410877 (1983-10-01), Carasso
patent: 4414659 (1983-11-01), Beckers
Taub "Elimination of DC Component in MFM-Type Codes", IBM Technical Disclosure Bulletin, vol. 21, No. 1, Jun. 1978, pp. 361-362.
Mallison and Miller article, "Optical Codes for Digital Magnetic Recording", from the Radio and Electronic Engineer, vol. 47, No. 4, pp. 172-176, Apr. 1977.

Affiliated with

Also associated with

Rating

Enhanced Miller code does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Enhanced Miller code, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced Miller code will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1343121