DE2449136A1 - Signal carrier with track run - has track for stored information and pressure and capacity scanning - Google Patents

Signal carrier with track run - has track for stored information and pressure and capacity scanning

Info

Publication number
DE2449136A1
DE2449136A1 DE19742449136 DE2449136A DE2449136A1 DE 2449136 A1 DE2449136 A1 DE 2449136A1 DE 19742449136 DE19742449136 DE 19742449136 DE 2449136 A DE2449136 A DE 2449136A DE 2449136 A1 DE2449136 A1 DE 2449136A1
Authority
DE
Germany
Prior art keywords
track
bulges
signal carrier
areas
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19742449136
Other languages
German (de)
Inventor
Peter Dipl Phys Huber
Stefan Dr Ing Maslowski
Horst Redlich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TED Bildplatten AG AEG Telefunken Teldec
Original Assignee
TED Bildplatten AG AEG Telefunken Teldec
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2315735A external-priority patent/DE2315735A1/en
Priority claimed from IT4939674A external-priority patent/IT1004391B/en
Application filed by TED Bildplatten AG AEG Telefunken Teldec filed Critical TED Bildplatten AG AEG Telefunken Teldec
Publication of DE2449136A1 publication Critical patent/DE2449136A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/03—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles
    • G11B11/06—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles with reproducing by mechanical sensing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces

Abstract

In addition to a continuous track run wider and deeper recesses are produced with the aid of beams. The recesses are produced along the track in accordance with the information. The signal carrier has a groove-shaped signal track of a stripe-shaped appearance with rounded recesses, which are approximately symmetrically arranged to the centre line of the stripe. The signal track is deeper in the areas of the recesses than in the stripe-shaped areas between adjacent recesses, which are spaced from each other. Information is recorded by burning indentations in the surface of the signal carrier using laser or electron beams.

Description

Verfahren zur Herstellung eines Signalträgers mit Spurführung und nach dem Verfahren hergestellter Signalträger.Process for the production of a signal carrier with track guidance and signal carrier manufactured according to the process.

(Zusatzanmeldung#zu P 23 15 735.9) Die Erfindung bezeht sich auf das im Hauptpatent Aeschriebene Verfahren, das auch ohne Verwendung von Photolackschichten und mit anderen Strahlen zur Herstellung eines Signalträgers mit tiefenschriftähnlichen Signalaufzeichnungen dienen kann, sowie auf einen Signalträger. (Additional application # to P 23 15 735.9) The invention relates to the process described in the main patent, which also works without the use of photoresist layers and with other beams for the production of a signal carrier with similar letters Signal recordings can serve as well as on a signal carrier.

Das Verfahren gemäß Hauptpatent bezweckt die Herstellung einer Signalspur in Form einer Rille mit veränderlicher Breite wie bei einer Doppelzackenschrift, jedoch mit konstatter Tiefe.The purpose of the method according to the main patent is to produce a signal track in the form of a groove with variable width as in a double zigzag font, but with a constant depth.

*) z. Z. noch Anmeldung J?ür die Druckabtastung hat sich ergeben, daß diese Art der Aufzeichnung bei der Abtastung zu geringe Signalamplituden liefert, weil zu geringe Druckänderungen auftreten.*) e.g. Currently still registration J? Has pressure sensing it turns out that this type of recording has signal amplitudes that are too low when scanning supplies because the pressure changes are too small.

Aufgabe der Erfindung ist es, die Eignung eines mit Hilfe von Strahlen hergestellten Signalträgers für die Druckabtastung und verwandte Abtastarten (z.B. Kapazitätsabtastung) zu verbessern.The object of the invention is to improve the suitability of a with the help of rays manufactured signal carrier for pressure scanning and related types of scanning (e.g. Capacity sampling).

Diese Aufgabe wird durch die in den Patentansprüchen gekennzeichnet Erfindung gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.This task is characterized by what is stated in the claims Invention solved. Advantageous further developments are given in the subclaims.

Die Aufzeichnung kann durch Einbrennen von Vertiefungen in die Signalträgeroberfläche mit Laser- oder Elektronenstrahlen oder mit einem zum gleichen Ergebnis führenden Verfahren erfolgen. Von der Doppelzackenschrift unterscheidet sich die Signalspur dadurch, daß sie rillenförmig und in Aufsicht streifenförmig mit ungefähr symmetrisch zur Streifenmittellinie angeordneten, abgerundeten Ausbuchtungen ist. Außerdem ist die rillenförmige Signalspur in den Bereichen der Ausbuchtungen tiefer als in den streifenförmigen Bereichen. Benachbarte Ausbuchtungen können Abstände voneinander aufweisen, die ungefähr ebenso groß wie die Hälfte der Streifenbreite sind. In den Bereichen der Ausbuchtungen ist die Signalspur ungefähr doppelt so breit wie in den streifenförmigen Bereichen zwischen benachbarten Ausbuchtungen. Die Tiefe in den streifenförmigen Bereichen kann im wesentlichen konstant sein, während in einem längs der Streifenmittellinie senkrecht zur makroskopischen Signaiträgeroberfläche geführten Schnitt die Kontur der Rillentiefe in den Bereichen der Ausbuchtungen entsprechend der Intensitätsverteilung eines Laserstrahles, der gegenüber dem Signalträger bei der Aufzeichnung bewegt wird, abgerundete Form haben kann. Die jeweils in der Mitte der Bereiche der seitlichen Ausbuchtungen auftretenden größten Tiefen der Rille können untereinander gleich sein.The recording can be made by burning in pits in the signal carrier surface with laser or electron beams or with one leading to the same result Procedure. The signal track differs from the double-pointed script in that they are groove-shaped and strip-shaped in plan view with approximately symmetrical to the strip center line arranged, rounded bulges is. Also is the groove-shaped signal track is deeper in the areas of the bulges than in the strip-shaped areas. Adjacent bulges can be spaced apart which are approximately as large as half the width of the stripe. In the In the areas of the bulges, the signal track is approximately twice as wide as in the strip-shaped areas between adjacent bulges. The depth in the strip-shaped areas can be essentially constant, while in one along the stripe center line perpendicular to the macroscopic signal carrier surface guided cut the contour of the groove depth in the areas of the bulges corresponding to the intensity distribution of a laser beam opposite the signal carrier is moved during recording, can have a rounded shape. Each in the In the middle of the areas of the lateral bulges occurring greatest depths of the Grooves can be identical to one another.

In der Zeichnung heizt Figur la die Aufsicht auf eine-Signalspur mit der Streifenbreite b, die zwischen den Ausbuchtungen erkennbar ist, deren Abstand d beträgt. Die Gesamtbreite der Rille ist b'. Hergestellt wird die Rille durch tiberlagerung eines Laserstrahles mit rundem Querschnitt des Durchmessers b nach Figur Ib und eines Laserstrahles nach Figur 1c mit elliptischem Querschnitt mit der Hauptachsenlänge b', der entsprechend der in der Rille zu speichernden Information-getastet wird.In the drawing, Figure la heats the plan view of a signal track the strip width b, which can be seen between the bulges, their spacing d is. The total width of the groove is b '. The groove is made by superimposing it a laser beam with a round cross-section of diameter b according to Figure Ib and of a laser beam according to FIG. 1c with an elliptical cross section with the main axis length b 'which is keyed according to the information to be stored in the groove.

In Figur 1d enthält der Signalträger 1 eine spiralförmige Rille zwischen der äußersten Windung 2 und der innersten Windung 3.In Figure 1d, the signal carrier 1 contains a spiral groove between the outermost turn 2 and the innermost turn 3.

Figur le zeigt eine perspektivische Ansicht einer Rille mit streifenförmigen Teilen I der Tiefe D und Ausbuchtungen II-mit größerer Tiefe D'.Figure le shows a perspective view of a groove with strip-shaped Parts I of the depth D and bulges II-with greater depth D '.

Ebenfalls für die Druckabtastung geeignet ist eine Ausführungsform nach Figur if, bei der die Rille durch ein Material ausgefüllt ist, das weicher ist als das sotige Signalträgermaterial.An embodiment is also suitable for pressure scanning according to figure if, in which the groove is filled with a material that is softer is as the sotige signal carrier material.

Weil die erfindungsgemäße Rille auch in der Tiefe moduliert ist, erhält ein Druckabtaster größere Druckimpulse bei der Abtastung als bei konstanter Rillentiefe längs der Spur. Entsprechendes gilt für kapazitive und äquivalente Abtastarten (z.B. magnetische).Because the groove according to the invention is also modulated in depth a pressure scanner larger pressure pulses when scanning than with a constant groove depth along the track. The same applies to capacitive and equivalent scanning types (e.g. magnetic).

Claims (1)

Patentansprüche Claims 1) 'Verfahren zur Herstellung eines Signalträgers mit $purführung für eine gespeicherte Informationen enthaltende Spur nach Patent 23 15 735, dadurch gekennzeichnet, daß mit Hilfe von Strahlen außer einer durchgehenden Spurführung (I) breitere und tiefere Ausbuchtungen (II) längs der Spur entsprechend dem Informationsverlauf erzeugt werden.1) 'Procedure for the production of a signal carrier with routing for a track containing stored information according to patent 23 15 735, thereby characterized in that with the help of rays other than a continuous tracking (I) wider and deeper bulges (II) along the track according to the course of the information be generated. 2) Signalträger, hergestellt unter Zuhilfenahme des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß er eine rillenförmige Signalspur aufweist, die streifenförmiges Aussehen mit ungefähr symmetrisch zur Streifenmittellinie angeordneten, abgerundeten Ausbuchtungen hat und in den Bereichen der Ausbuchtungen tiefer ist als in den streifenförmigen Bereichen zwischen benachbarten Ausbuchtungen.2) Signal carrier, produced with the aid of the method according to Claim 1, characterized in that it has a groove-shaped signal track, the stripe-like appearance with roughly symmetrical to the stripe center line, has rounded bulges and is deeper in the areas of the bulges than in the strip-shaped areas between adjacent bulges. 5) Signalträger nach Anspruch 2, dadurch gekennzeichi#t, daß benachbarte Ausbuchtungen Abstände voneinander aufweisen.5) signal carrier according to claim 2, characterized gekennzeichi # t that adjacent Bulges are spaced apart from one another. 4) Signalträger nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Signalspur in den Bereichen der Ausbuchtungen ungefähr doppelt so breit ist wie in den streifenförmigen Bereichen zwischen benachbarten Ausbuchtungen.4) signal carrier according to claim 2 or 3, characterized in that the signal track in the areas of the bulges is approximately twice as wide as in the strip-shaped areas between adjacent bulges. 5) Signalträger nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Tiefe in den streifenförmigen Bereichen im wesentlichen konstant ist.5) signal carrier according to one of the preceding claims, characterized in that that the depth in the strip-shaped areas is essentially constant. *) (-Anmeldung P) 6) Signalträger nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die im Längsschnitt der Signalspur erkennbare Tiefenkontur in den Bereichen der Ausbuchtungen abgerundete Formen hat.*) (-Registration P) 6) Signal carrier according to one of the preceding Claims, characterized in that the signal track recognizable in the longitudinal section Depth contour in the areas of the bulges has rounded shapes. 7) Signalträger nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die größten Tiefen in den Bereichen unterschiedlicher Ausbuchtungen untereinander gleich groß sind.7) signal carrier according to one of the preceding claims, characterized in that that the greatest depths are in the areas of different bulges from one another are the same size.
DE19742449136 1973-03-27 1974-10-16 Signal carrier with track run - has track for stored information and pressure and capacity scanning Withdrawn DE2449136A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2315735A DE2315735A1 (en) 1973-03-27 1973-03-27 METHOD AND DEVICES FOR PRODUCING A TRACK GUIDANCE FOR THE RECORDING OF INFORMATION IN A SPIRAL ON A PLATE-SHAPED SIGNAL CARRIER
IT4939674A IT1004391B (en) 1973-03-27 1974-03-21 PROCEDURE AND DEVICE FOR MANUFACTURING A GUIDE IN THE SOL CO FOR THE RECORDING OF INFORMATION OF A SPIRAL ON A DISCOID-SHAPED SIGNAL SUPPORT

Publications (1)

Publication Number Publication Date
DE2449136A1 true DE2449136A1 (en) 1975-10-16

Family

ID=25764890

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742449136 Withdrawn DE2449136A1 (en) 1973-03-27 1974-10-16 Signal carrier with track run - has track for stored information and pressure and capacity scanning

Country Status (1)

Country Link
DE (1) DE2449136A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933771A2 (en) * 1998-01-28 1999-08-04 Hitachi, Ltd. Recording medium and recording device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933771A2 (en) * 1998-01-28 1999-08-04 Hitachi, Ltd. Recording medium and recording device
EP0933771A3 (en) * 1998-01-28 2001-02-14 Hitachi, Ltd. Recording medium and recording device
US6370107B1 (en) 1998-01-28 2002-04-09 Hitachi, Ltd. Recording medium and recording device

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Legal Events

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8141 Disposal/no request for examination