Patent · US Expired

Process and apparatus for the recording of an information signal

US4821250A · kind A · utility

1Cited by

6References

24Claims

0Family size

Assignee

DMM Master Technik GmbH fur Informationstrager · DE

Inventors

Horst Redlich · Berlin, DE
Guenter Joschko · Berlin, DE

Key dates

Filing date	Jul 9, 1986
Grant date	Apr 11, 1989
Priority date	—
Expiry date	Jul 9, 2006

Classification

Technology area (CPC G)Physics
CPC primaryG11B11/18
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A process and an apparatus are specified for recording a digital signal onto a recording carrier (4), in particular a signal for recording in compact disc data format, in which an engraving or cutting stylus (2) is pressed substantially by dead weight alone against the recording carrier (4) and, in operating mode, describes a path which lies beneath the undeformed surface of the recording carrier (4) during an indentation to be engraved and on or above the undistorted surface of the recording carrier (4) between two indentations, the common center of gravity position of the engraving stylus (2) and positioning element (1) connected rigidly to it remaining substantially stable in position.

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