Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2006-10-17
2006-10-17
Patel, Gautam R. (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
Reexamination Certificate
active
07123572
ABSTRACT:
The present invention relates to a method and a circuit for recovering information contained in a wobbled track on an optical storage medium. One aim of the invention is to describe a method within an appliance for reading from and/or writing to optical storage media, which can correct disturbing data signal components in the wobble signal even when the swept frequency and the lowest signal frequency are close to one another. According to the invention, this object is achieved in that the signals from two detector halves of a photodetector which is used for reading the data contained in a track on an optical storage medium are provided with weighting factors which are adjusted dynamically during operation of the appliance. In order to adjust the weighting factors, the data signal component in the wobble signal is linked to a disturbance signal from a disturbance signal generator.
REFERENCES:
patent: 5339302 (1994-08-01), Takahashi et al.
patent: 5434834 (1995-07-01), Shinoda et al.
patent: 5631892 (1997-05-01), Bakx
patent: 5717679 (1998-02-01), Mashimo et al.
patent: 2001/0026512 (2001-10-01), Nishimura et al.
Copy of Search Report dated Nov. 14, 2002.
Laks Joseph J.
Lin Reitseng
Patel Gautam R.
Shedd Robert D.
Thomson Licensing
LandOfFree
Method for reducing the noise in a wobble signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for reducing the noise in a wobble signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing the noise in a wobble signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3629047