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1. (US20090129220) INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS AND METHOD, AND APPARATUS FOR AND METHOD OF MANUFACTURING THE INFORMATION RECORDING

Office : United States of America
Application Number: 11995780 Application Date: 13.07.2006
Publication Number: 20090129220 Publication Date: 21.05.2009
Publication Kind : A1
Prior PCT appl.: Application Number:JP06313972 ; Publication Number: Click to see the data
IPC:
G11B 15/46
G11B 15/52
G02B 5/00
G11B 7/24
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
15
Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
18
Driving; Starting; Stopping; Arrangements for control or regulation thereof
46
Controlling, regulating, or indicating speed
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
15
Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
18
Driving; Starting; Stopping; Arrangements for control or regulation thereof
46
Controlling, regulating, or indicating speed
52
by using signals recorded on, or derived from, record carrier
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
24
Record carriers characterised by shape, structure or physical properties, or by the selection of the material 
Applicants: PIONEER CORPORATION
MITSUBISHI KAGAKU MEDIA CO., LTD.
Inventors: Nishiwaki Hiroshi
Muramatsu Eiji
Horie Michikazu
Kiyono Kenjirou
Agents: YOUNG &; THOMPSON
Priority Data: 2005206588 15.07.2005 JP
Title: (EN) INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS AND METHOD, AND APPARATUS FOR AND METHOD OF MANUFACTURING THE INFORMATION RECORDING
Abstract: front page image
(EN)

An information recording medium (100) is provided with (i) a first information recording area wherein a first track for reproducing first information based on a first track pitch is formed by a laser beam, and (ii) a second information recording area wherein a second track for reproducing second information based on a second track pitch different from the first track pitch is formed by a laser beam. In the second track, a recording mark is previously recorded.


Also published as:
JPWO2007010824WO/2007/010824