§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
EP0630006A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Disc data recording and/or reproducing apparatus

Assignee: Toshiba Corp
•
Filing: 1994-06-15
•
Granted: —
•
Expires: 2014-06-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A disc data recording and/or reproducing apparatus for recording and/or reproducing data to or from a pair of separated data tracks on a disc is provided. The apparatus includes a pair of recording and/or reproducing heads (4, 5) for recording or reproducing data in cooperation with each other to or from the pair of separated data tracks of the disc (2), a head travel controller (6, 7) for controlling the pair of recording and/or reproducing heads to travel oppositely with each other in the radial direction of the disc (2), and a data rate controller (6, 7) for dividing or integrating data written or read by the pair of recording and/or reproducing heads (4, 5).

Inventors

  • 👤 Yuichi C/O Intellectual Property Division Miyano

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 15:44
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B21/00; G11B7/00; G11B7/12; G11B7/14

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 122 words
A disc data recording and/or reproducing apparatus for recording and/or reproducing data to or from a pair of separated data tracks on a disc (2), comprising: a pair of recording and/or reproducing heads (4. 5) for recording or reproducing data in cooperation with each other to or from the pair of separated data tracks of the disc (2); head travel controlling means (6, 7) for controlling the pair of recording and/or reproducing heads (4, 5) to travel in opposite directions with respect to each other in the radial direction of the disc (2); and data rate controlling means (6, 7) for dividing or integrating data respectively to be written by or read by the pair of recording and/or reproducing heads (4, 5).
Claim 2
Dependent Claim 37 words
A disc data recording and/or reproducing apparatus as claimed in claim 1, wherein the disc (2) is a double-sided type disc having two sides (A, B) each having data track oriented oppositely with respect to the other.
Claim 3
Dependent Claim 33 words
A disc data recording and/or reproducing apparatus as claimed in claim 2. wherein the pair of recording and/or reproducing heads (4, 5) separately face the different side (A, B) of the disc (2).

References Cited (Backward Citations)

JPS63161532A Cited
EP0273384A1 Cited
EP0487296A2 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag