Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate
2007-08-07
2007-08-07
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Control of information signal processing channel
C369S047300, C369S059130
Reexamination Certificate
active
11405590
ABSTRACT:
A data demodulation process rate is varied according to a reproduction state, thereby reducing power consumption while maintaining a reading performance in a favorable state. A channel rate process data demodulation device performs a data demodulation process by employing channel bit frequency. Further, a half rate process data demodulation device performs a data demodulation process by employing frequency half as high as the channel bit frequency. These devices demodulate digital data from an optical recording medium. A process rate switching device switches a process rate at data demodulation, whereby demodulation is performed by switching between the data demodulation devices according to a quality of a reproduction signal, so as to reproduce the digital data recorded on the optical recording medium.
REFERENCES:
patent: 5388087 (1995-02-01), Saiki et al.
patent: 5559774 (1996-09-01), Watanabe et al.
patent: 5612933 (1997-03-01), Iso et al.
patent: 5729517 (1998-03-01), Fujiwara et al.
patent: 6046874 (2000-04-01), Takahashi
patent: 6069856 (2000-05-01), Mita et al.
patent: 6215744 (2001-04-01), Mita et al.
patent: 6215751 (2001-04-01), Tsuchinaga
patent: 6366631 (2002-04-01), Nakayama et al.
patent: 6381203 (2002-04-01), Muramatsu
patent: 6807134 (2004-10-01), Nakajima et al.
patent: 6834035 (2004-12-01), Marukawa et al.
patent: 0 878 797 (1998-05-01), None
patent: 0 881 639 (1998-05-01), None
patent: 4-45315 (1992-04-01), None
patent: 4-245711 (1992-09-01), None
patent: 7-262703 (1995-10-01), None
patent: 8-7498 (1996-01-01), None
patent: 10-283729 (1998-10-01), None
patent: 10-312640 (1998-11-01), None
patent: 10-326457 (1998-12-01), None
patent: 11-345460 (1999-12-01), None
patent: 2001-101799 (2001-04-01), None
patent: 01/26111 (2001-04-01), None
Korzuch William
Lamb Christopher R
Matsushita Electric - Industrial Co., Ltd.
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Optical disk reproducing device selectively using a channel... 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 disk reproducing device selectively using a channel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disk reproducing device selectively using a channel... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3840901