The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 1990
Filed:
Apr. 23, 1986
Jerome Drexler, Los Altos Hills, CA (US);
Joseph B Arnold, Los Altos Hills, CA (US);
Drexler Technology Corporation, Mountain View, CA (US);
Abstract
An optical recording medium in tape form which may either be strips of tape or reels of tape, all having preformatted continuous servo tracks from one end to the other. Preformatted servo tracks are spaced-apart lines, so as to permit data spots to be written between or on the tracks. The tracks may extend either longitudinally, parallel to the lengthwise direction of the tape or in a perpendicular direction, extending in directions transverse to the length of the tape, or in a grid-like pattern. The tape web may be joined to a web of transparent protective material over the surface of the strip. A data card may be made using a strip of such tape without regard to registration of the tape with markings on the card. Tracks may be made by directly writing with a laser on direct-read-after-write laser recording material or by photolithography or by embossing.