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US 6,480,442 B1Granted
Disk player capable of detecting different sizes of optical disks
AssigneeClarion Co., Ltd.
InventorsMitsuo Nakatani, Motonori Hoshino, Katsumi Watanabe, Hitoshi Ohno
Life of this patent
Estimating the term…
Abstract
A disk player includes a disk conveying section driven by a driver and a detecting section to detect control information of leading-in and ejection of the disk by the disk conveying section. The detecting section has a first sensor which detects a state of a leading-in start of the disk, a state of a re-leading-in start of the disk and a diameter of the disk.
Claims20
A disk player comprising:
- a disk conveying section having a loading roller driven by a driver;
- and
- a detecting section to detect control information of leading-in and ejection of one of a larger disk and a smaller disk by the disk conveying section,
- wherein said detecting section includes a first sensor which is positioned on or in a vicinity of a center line (X) of a disk conveying path so that an edge portion of the center hole of the disk or a boundary portion of a transparent portion and a reflection portion of an inner periphery of the disk is detected when the disk is conveyed by the disk conveying section, and is positioned between the loading roller and a disk insertion inlet so as to detect the larger disk only when the disk is loaded and positioned at a reproducing position, and
- wherein said first sensor detects a start timing of leading-in the disk when the disk is inserted, a disk size after the leading-in is completed, and a start timing of the re-leading-in the disk when the disk is pushed after ejection.
2 more elements
A disk player comprising:
- a disk conveying section driven by a driver;
- and
- a detecting section to detect control information of leading-in and ejection of the disk by the disk conveying section,
- wherein said detecting section includes a first sensor which detects a state of a leading-in start of the disk, a state of a re-leading-in start of the disk and a diameter of the disk,
- wherein said first sensor includes an optical element having said light receiving and light emitting surface, and said reflection surface provided at a position where the light from the light emitting surface is reflected onto the light receiving surface,
- wherein the light receiving and light emitting surface and the reflection surface are arranged with an inclination to the horizontal surface of the mechanism;
- and
- wherein said detecting section is provided at a position at which optical paths between the optical element and the reflection surface do not interfere with each other.
5 more elements
A disk player comprising:
- a plurality of detecting sections each for detecting an object in a mechanism, each of said detecting section including an optical element having a light receiving and light emitting surface, and a reflection surface provided at a position where the light from the light emitting surface is reflected onto the light receiving surface,
- wherein the light receiving and light emitting surface and the reflection surface are arranged with an inclination to the horizontal surface of the mechanism;
- and
- said detecting sections are provided at positions at which optical paths between the optical element and the reflection surface do not interfere with each other.
1 more element
A disk player comprising:
- a driver;
- a disk conveying section driven by said driver;
- and
- a detecting section to detect a leading-in and an ejection of a disk by the disk conveying section,
- wherein said detecting section includes at least one sensor which detects a disk condition,
- wherein said at least one sensor includes light receiving and light emitting surfaces, and a reflection surface provided at a position where the light from the light emitting surface is reflected onto the light receiving surface, and
- wherein said detecting section is provided at a position at which optical paths between the optical element and the reflection surface do not interfere with each other.
4 more elements
Dependencies are inferred from the claim text.