Dynamic information storage or retrieval – Signal processing by storage and subsequent retrieval
Patent
1989-03-10
1991-12-17
Psitos, Aristotelis
Dynamic information storage or retrieval
Signal processing by storage and subsequent retrieval
369107, H01G 420, H04J 300
Patent
active
050738860
ABSTRACT:
Provided is a signal reproducing circuit for an optical disc player including a multidivisional photodetector with photoelectric converting elements in a preceding side and photoelectric converting elements in a succeeding side relative to a proceeding direction of pits of an optical disc, a variable delay circuit for delaying outputs from the photoelectric converting elements in the preceding side, a circuit for detecting a time difference between an output from the photo electric converting elements in the succeeding side and an output from the variable delay circuit, and a circuit responsive to an output from the time difference detecting circuit for changing a delay time of the variable delaying circuit. The signal reproducing circuit further includes a circuit for amplifying and correcting high frequency components of signals reproduced by the photo detector in response to the output from the time difference detecting circuit. This structure extends a reproduced frequency band, improves a high frequency characteristic of the video signals reproduced from the optical disc and supplies video signals having superior frequency characteristics.
REFERENCES:
patent: 4366564 (1982-12-01), de Haan et al.
patent: 4726004 (1988-02-01), Takasago et al.
patent: 4785441 (1988-11-01), Tanaka et al.
patent: 4845701 (1988-07-01), Nakata
"Laser Disc Technical Book", by Pioneer Kabushiki Kaisha, Kabushiki Kaisha ASCII, Nov. 1, 1986.
Hosoya Nobukazu
Sasaki Tooru
Psitos Aristotelis
Sanyo Electric Co,. Ltd.
Sheladia Varsha V.
LandOfFree
Signal reproducing circuitry and signal reproducing method for o does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal reproducing circuitry and signal reproducing method for o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal reproducing circuitry and signal reproducing method for o will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-838918