Optical information recording method, optical information...

Details Optical information recording method, optical information... Optical information recording method, optical information...

2006-10-03

2006-10-03

Tran, Thang V. (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047510

Reexamination Certificate

active

07116623

ABSTRACT:
An optical information recording device includes a linear velocity setting circuit for setting a first linear velocity v1and a second linear velocity v2higher than the first linear velocity v1for a optical information recording medium, a recording pulse generation circuit for generating a recording pulse signal, depending on the setting by the linear velocity setting circuit, and a laser drive circuit for irradiating the medium with the laser light based on the recording pulse signal generated by the recording pulse generation circuit. The laser drive circuit controls a power level of the laser light so that Pbt1≦Pe1and Pe2<Pbt2≦Pwa2, where Pbt1represents a first inter-pulse power level indicating a power level between recording pulses for the first linear velocity v1, Pbt2represents a second inter-pulse power level indicating a power level between the recording pulses for the second linear velocity v2, Pwa2represents a recording power level indicating a power level of the recording power for the second linear velocity v2, Pe1represents a first erase power level indicating a power level of the erase power for the first linear velocity v1, and Pe2represents a second erase power level indicating a power level of the erase power for the second linear velocity v2.

REFERENCES:
patent: 5412626 (1995-05-01), Ohno et al.
patent: 5848043 (1998-12-01), Takada et al.
patent: 5956308 (1999-09-01), Akahira et al.
patent: 6459666 (2002-10-01), Yokoi
patent: 6631109 (2003-10-01), Nakamura
patent: 6704269 (2004-03-01), Ogawa
patent: 2001/0017833 (2001-08-01), Yamada et al.
patent: 2003/0123352 (2003-07-01), Chen
patent: 2004/0052176 (2004-03-01), Narumi et al.
patent: 2004/0053076 (2004-03-01), Kosuda et al.
patent: 2005/0013229 (2005-01-01), Yokoi
patent: 9-282661 (1997-10-01), None
patent: 2000-11382 (2000-01-01), None
patent: 2001-118245 (2001-04-01), None
patent: 2001-155339 (2001-06-01), None
patent: 2001-222819 (2001-08-01), None
patent: 2003-203340 (2003-07-01), None

Affiliated with

Also associated with

Rating

Optical information recording method, optical information... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical information recording method, optical information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical information recording method, optical information... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3653840