Encoding for pit-per-transition optical data recording

Details Encoding for pit-per-transition optical data recording Encoding for pit-per-transition optical data recording

1987-12-01

1989-11-14

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

Byte length changed

341 59, H03M 716

Patent

active

048810762

ABSTRACT:
Encoding method for data to be recorded on optical disks using the pit-per-transition technique or return-to-zero techniques whereby the characteristics of the encoded bits produce a stable, low frequency spectral notch and minimum interference with associated focus and tracking servomechanisms. RLL (d,k) code words are selected so that the ratio of the lengths of pits and lands approximate some nonzero fraction less than one-half which depends on the (d,k) code employed. For example, a fraction of 1/3 is appropriate for RLL (2,7).

REFERENCES:
patent: 4486739 (1984-12-01), Franaszek et al.
patent: 4539691 (1984-09-01), Ogawa et al.
patent: 4672362 (1987-06-01), Furukawa et al.

Affiliated with

Also associated with

Rating

Encoding for pit-per-transition optical data recording does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Encoding for pit-per-transition optical data recording, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encoding for pit-per-transition optical data recording will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1855064