Patent · US Expired

Arrangement for the recording of an information signal

US4881133A · kind A · utility

1Cited by

3References

2Claims

0Family size

Assignee

DMM Master Technik GmbH fur Informationstrager · DE

Inventors

Horst Redlich · Berlin, DE
Gunter Joschko · Berlin, DE

Key dates

Filing date	Jul 30, 1987
Grant date	Nov 14, 1989
Priority date	—
Expiry date	Jul 30, 2007

Classification

Technology area (CPC G)Physics
CPC primaryG11B3/46
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An arrangement for the recording of a digital information signal, in particular onto a plate-shaped, metallic recording carrier with the aid of a penetrating element is specified, in which the latter preferably has a pyramid shape with three side surfaces and three edges. The edge (6) forming the runner of the penetrating element lies, in its projection onto the recording carrier, in the direction of the velocity vector at the point of recording. The edge forms with the velocity vector an angle of >135.degree.. The projections of the two further edges onto the recording carrier lie perpendicular to the velocity vector. With the aid of such a penetrating element, an engraving of a digital signal is possible, which is read out by a laser beam.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.