Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Record-carrier body provided with a relief structure of optically detectable servo-track portions and sector addresses and apparatus for forming said structure

Record-carrier body provided with a relief structure of optically detectable servo-track portions and sector addresses and apparatus for forming said structure

US Patent 4959822 · Granted Sep 25, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Device and method for generating a plasma discharge for patterning the surface o2015
Illumination unit having a facility for preventing contamination of optical comp1996
Optically readable record carrier for recording information, method and apparatu1994
Arrangement for measuring the reflection and/or transmission of an object1993
Record carrier having servo-track portions and sector addresses having the same 1991
Record carrier having servo-track portions and sector addresses having the same 1991
Apparatus for pre-forming servo-track portions and sector addresses having the s1990
Apparatus for pre-forming servo-track portions and sector addresses having the s1990
Record-carrier body provided with a relief structure of optically detectable ser1990
Record-carrier body provided with a relief structure of optically detectable ser1990
Method and apparatus for scanning the recording surface of a rotating disc-shape1988