Dynamic optical information storage or retrieval – Particular cabinet structure for optical media – Capable of only accepting unprotected insertable single...
Reexamination Certificate
2002-03-26
2004-06-22
Ometz, David (Department: 2653)
Dynamic optical information storage or retrieval
Particular cabinet structure for optical media
Capable of only accepting unprotected insertable single...
Reexamination Certificate
active
06754901
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a disk player in which position detection of a disk inserted and discrimination about whether the disk is a large one or a small one can be performed through a simple construction.
2. Description of the Related Art
Japanese Patent Application Laid-Open No. Hei 10-116459 discloses a disk position detection means as follows. That is, a pair of levers and an interlock member for interlocking these levers are provided, and respective first and second switches are arranged in the respective vicinities of one side lever and the interlock member. When a disk is not inserted, the first switch is turned on and the second switch is turned off, and when one of large and small disk is inserted to a loading start position, the first switch is turned off by the rotation of a lever to start a loading motor. While a small diameter disk is inserted, even when the quantity of rotation of the lever is maximum, since such quantity of rotation is small, the second switch is not turned on. While a large diameter disk is inserted, since the lever rotates largely, the second switch becomes on, and based on these conditions, discrimination about whether the disk is a large one or a small one is performed.
In the construction in which the switches are arranged in the respective vicinities of the lever and the interlock member as described above, the construction is complex since two switches are employed, and there is a difficulty in designing since a space for arranging the respective switches has to be ensured. Setting the positional relationship among the levers, the interlock member, and the respective switches in a high resolution manner is difficult, and thus there is a fear that malfunctions occurs when positional relationship of high resolution is not achieved.
SUMMARY OF THE INVENTION
The present invention was developed to solve these problems, and it is an object of the present invention to provide a disk player in which designing and manufacturing thereof are easy and in which discrimination about whether the disk is a large one or a small one and detection of a disk position can be performed through a simple construction.
The present invention is a disk player in which a pair of detection levers attached to a support member are pressed to be spread out by a disk inserted from an outside to rotate in open directions while mutually interlocking and are rotated to return in close directions while mutually interlocking after a disk passes, and the apparatus is constructed wherein a circuit board is provided on one of the support member and the detection levers of one side and a contact coming in contact with contact points of the circuit board is provided on the other thereof to construct a rotary switch by the circuit board and the contact, and position detection of a disk inserted and discrimination about whether the disk is a large one or a small one are performed according to difference in output signal of the rotary switch.
As the support member, a disk guide board can be utilized, and thus the construction can be further simplified.
REFERENCES:
patent: 4498162 (1985-02-01), Schatteman
patent: 4539670 (1985-09-01), Inaba et al.
patent: 5022023 (1991-06-01), Toyoguchi
patent: 5119354 (1992-06-01), Umesaki
patent: 5173893 (1992-12-01), Morikawa et al.
patent: 5173894 (1992-12-01), Kido
patent: 5828641 (1998-10-01), Abe et al.
patent: 6222811 (2001-04-01), Sakurai et al.
patent: 6288982 (2001-09-01), Kato
patent: 10-116459 (1996-10-01), None
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Ometz David
Reed Smith LLP
Tanashin Denki Co. Ltd.
LandOfFree
Disk player does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disk player, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk player will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3360794