Apparatus for and method of mounting disks having different diameters
First Claim
1. An apparatus for mounting disks having different diameters, the apparatus comprising:
- a recording medium mount section for mounting a disc, the disc being one of a first diameter and a second diameter, the second diameter being smaller than the first diameter;
at least three optical detection means each for detecting presence or absence of reflected light and each including;
an associated light emitting section which emits light through a corresponding one of at least three openings in the recording medium mount section such that the light is directed onto a surface of the mounted disc if the disc covers the corresponding opening in the recording medium mount section and is not directed onto the surface of the mounted disc if the disc does not cover the corresponding opening in the recording medium mount section, andan associated light receiving section which receives light reflected from the surface of the mounted disc if the disc covers the corresponding opening in the recording medium mount section and does not receive light reflected from the surface of the mounted disc if the disc does not cover the corresponding opening in the recording medium mount section,wherein the at least three openings in the recording medium mount section are positioned at substantially equal distances from a reference point so that at least two of the optical detection means detect light reflected from the surface of the mounted disc if the disc is of the first diameter and at most one of the optical detection means detects light reflected from the surface of the mounted disc if the disc is of the second diameter; and
control means for determining whether the mounted disc is of the first diameter or the second diameter based on detection results of the at least three optical detection means.
1 Assignment
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Accused Products
Abstract
A disc transport apparatus for detecting a disc-shaped recording medium with specified diameter, transporting the disc-shaped recording medium to a chucking position, but not transporting a disc-shaped recording medium with different diameter, when detected, to the chucking position includes a recording medium mount section capable of mounting a first disc having a first diameter and a second disc having a second diameter that is smaller than the first diameter, an optical detection unit that uses a light receiving section for receiving reflected light from a detection target in response to light emitted from a light emitting section and that is provided at a position opposite a disc having the first diameter when the disc is mounted on the recording medium mount section and at a position not opposite a disc having the second diameter when the disc is mounted on the recording medium mount section, and a control section for determining whether a disc is mounted based on a detection result of the optical detection means.
16 Citations
10 Claims
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1. An apparatus for mounting disks having different diameters, the apparatus comprising:
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a recording medium mount section for mounting a disc, the disc being one of a first diameter and a second diameter, the second diameter being smaller than the first diameter; at least three optical detection means each for detecting presence or absence of reflected light and each including; an associated light emitting section which emits light through a corresponding one of at least three openings in the recording medium mount section such that the light is directed onto a surface of the mounted disc if the disc covers the corresponding opening in the recording medium mount section and is not directed onto the surface of the mounted disc if the disc does not cover the corresponding opening in the recording medium mount section, and an associated light receiving section which receives light reflected from the surface of the mounted disc if the disc covers the corresponding opening in the recording medium mount section and does not receive light reflected from the surface of the mounted disc if the disc does not cover the corresponding opening in the recording medium mount section, wherein the at least three openings in the recording medium mount section are positioned at substantially equal distances from a reference point so that at least two of the optical detection means detect light reflected from the surface of the mounted disc if the disc is of the first diameter and at most one of the optical detection means detects light reflected from the surface of the mounted disc if the disc is of the second diameter; and control means for determining whether the mounted disc is of the first diameter or the second diameter based on detection results of the at least three optical detection means. - View Dependent Claims (2, 3, 4, 5)
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6. A method of mounting disks having different diameters, the method comprising:
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mounting a disc onto a recording medium mount section, the disc being one of a first diameter and a second diameter that is smaller than the first diameter; detecting presence or absence of reflected light using at least three optical detection devices each having an associated light emitting section which emits light through a corresponding one of at least three openings in the recording medium mount section such that the light is directed onto a surface of the mounted disc if the disc covers the corresponding opening in the recording medium mount section and is not directed onto the surface of the mounted disc if the disc does not cover the corresponding opening in the recording medium mount section, and an associated light receiving section which receives light reflected from the surface of the mounted disc if the disc covers the corresponding opening in the recording medium mount section and does not receive light reflected from the surface of the mounted disc if the disc does not cover the corresponding opening in the recording medium mount section, wherein the at least three openings in the recording medium mount section are positioned at substantially equal distances from a reference point so that at least two of the optical detection devices detect light reflected from the surface of the mounted disc if the disc is of the first diameter and at most one of the optical detection devices detects light reflected from the surface of the mounted disc if the disc is of the second diameter; and determining whether the disc is of the first diameter or the second diameter based on detection results of the at least three optical detection devices. - View Dependent Claims (7, 8, 9, 10)
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Specification