Optical pickup

Details Optical pickup Optical pickup

2006-05-16

2006-05-16

Hindi, Nabil (Department: 2656)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S121000, C369S112160

Reexamination Certificate

active

07046614

ABSTRACT:
In an optical pickup projecting a laser beam from a laser diode onto a disk through a half mirror, a collimator lens and an objective lens and receiving the laser beam reflected by the disk in a photodiode through the half mirror thereby reading information recorded in the disk, a portion of a metal board body having a pattern of a printed board corresponding to a connector pin fed with a high-frequency signal is notched to cause no electrostatic capacitance between the metal board body and the printed board thereby preventing a read signal from the photodiode from a jitter. Thus obtained is a high-performance and low-priced optical pickup causing no reading error.

REFERENCES:
patent: 5539767 (1996-07-01), Nakanishi et al.
patent: 6093962 (2000-07-01), Ikegame
patent: 2001/0004347 (2001-06-01), Koga et al.
patent: 2003/0035358 (2003-02-01), Ito
patent: 5-282693 (1993-10-01), None
patent: 5-323178 (1993-12-01), None
patent: 8-7321 (1996-01-01), None
patent: 9-185835 (1997-07-01), None
patent: 2000-149301 (2000-05-01), None
patent: 2001-189027 (2001-07-01), None
patent: 2002-232066 (2002-08-01), None
patent: 2003-59075 (2003-02-01), None
Patent Abstracts of Japan, publication No. 05-323178; date of publication Dec. 7, 1993, 1 page.
Patent Abstracts of Japan, publication No. 2000-149301, date of publication May 30, 2000, 1 page.
Patent Abstracts of Japan, publication No.: 05-282693, publication date Oct. 29, 1993, 1 page.
Patent Abstracts of Japan, publication No.: 09-185835, publication date Jul. 15, 1997, 1 pages.
Patent Abstracts of Japan, publication No.: 2001-189027, publication date Jul. 10, 2001, 1 page.
Patent Abstracts of Japan, publication No.: 2002-232066, publication date Aug. 16, 2002, 1 page.
Patent Abstracts of Japan, publication No.: 2003-059075, publication date Feb. 28, 2003, 1 page.
Patent Abstracts of Japan; publication No. 08007321 A, publication dated Jan. 12, 1996, 1 pg.

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