EP0265286A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Random reproducing system for disk player
Assignee: Pioneer Corp
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Filing: 1987-10-23
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Granted: —
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Expires: 2007-10-23
Abstract
Abstract A disk player providing random disk or piece selection upon turning on of the power supply. According to one aspect of the invention, a piece on an available disk is randomly selected as soon as the disk player is turned on. According to another aspect of the invention, particularly applicable to multi-disk players, the random number is formed by a counter running at a fast rate. When the power is turned on, the counter is started and a mechanical component begins movement toward another position. Only when the component is detected to have arrived, is the counter read to provide the random number for disk or piece selection.
Inventors
- 👤 Naoki Pioneer Electronic Corporation Masaki
- 👤 Masayuki Pioneer Electronic Corporation Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 19:57
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/22; G11B17/228; G11B19/00; G11B19/02; G11B27/00; G11B27/002; G11B27/10; G11B27/11; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/60; G11B2220/65; G11B27/102; G11B27/105
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
157 words
A timer play device for a disk player, comprising: a disk player for playing a disk recorded with a number of pieces and a table of contents of said pieces; a power switch for said disk player; means for determining if a disk is available for playing in said disk player; first means for controlling said disk player which, responsive to a turning on of said power switch and a determination by said determining means that a disk is available, starts said disk for playing by said disk player; second means for reading said table of contents from said started disk, to thereby extract recorded music numbers of said recorded pieces; a random number generator for generating a random number; and a controller which selects one of said recorded pieces according to said random number, controls a driving of said first means, and causes said second means to search for said selected recorded pieces on said disk.
Claim 2
Dependent Claim
157 words
A timer play device for a disk player, comprising: a disk player for playing a disk recorded with a number of pieces and a table of contents of said pieces; a power switch for said disk player; means for determining if a disk is available for playing in said disk player; first means for controlling said disk player which, responsive to a turning on of said power switch and a determination by said determining means that a disk is available, starts said disk for playing by said disk player; second means for reading said table of contents from said started disk, to thereby extract recorded music numbers of said recorded pieces; a random number generator for generating a random number; and a controller which selects one of said recorded pieces according to said random number, controls a driving of said first means, and causes said second means to search for said selected recorded pieces on said disk.
Claim 3
Dependent Claim
26 words
A timer play device as recited in Claim 1, wherein said disk player stores a plurality of disks for selective playing of one of said disks.
Claim 4
Dependent Claim
131 words
A disk player, comprising: playing means for playing one disk of one or more disks and including a controllably movable mechanical component; numerical value forming means for forming a numerical value which changes at predetermined time intervals; a power switch for said player; means responsive to a turning on of said power switch for starting said numerical value forming means and for controlling said mechanical component to begin movement from a first position to a second position; means for determining that said mechanical component has moved to said second position; means responsive to said determining means for reading a first current value from said numerical value forming means and for using said current value for randomly selecting one piece from said one or more disks for playing by said playing means.
Claim 5
Dependent Claim
131 words
A disk player, comprising: playing means for playing one disk of one or more disks and including a controllably movable mechanical component; numerical value forming means for forming a numerical value which changes at predetermined time intervals; a power switch for said player; means responsive to a turning on of said power switch for starting said numerical value forming means and for controlling said mechanical component to begin movement from a first position to a second position; means for determining that said mechanical component has moved to said second position; means responsive to said determining means for reading a first current value from said numerical value forming means and for using said current value for randomly selecting one piece from said one or more disks for playing by said playing means.
Claim 6
Dependent Claim
159 words
A multi-disk player, comprising: playing means for playing one of a plurality of recorded disks; storage means for storing said plurality of recorded disks; selecting and conveying means for selecting one of said plurality of stored disks and conveying said selected disk to a disk playing position of said playing means; numerical value forming means for forming a numerical value which changes at predetermined time intervals; a power switch for said player; means responsive to a turning on of said power switch for starting said numerical value forming means and for causing said selecting and conveying means to begin movement from a first position to a second position; means for determining that said selecting and conveying means has moved to said second position; means responsive to said determining means to read a first current value from said numerical value forming means and to use said current value for causing said selecting and conveying means to select said selected disk.
Claim 7
Dependent Claim
159 words
A multi-disk player, comprising: playing means for playing one of a plurality of recorded disks; storage means for storing said plurality of recorded disks; selecting and conveying means for selecting one of said plurality of stored disks and conveying said selected disk to a disk playing position of said playing means; numerical value forming means for forming a numerical value which changes at predetermined time intervals; a power switch for said player; means responsive to a turning on of said power switch for starting said numerical value forming means and for causing said selecting and conveying means to begin movement from a first position to a second position; means for determining that said selecting and conveying means has moved to said second position; means responsive to said determining means to read a first current value from said numerical value forming means and to use said current value for causing said selecting and conveying means to select said selected disk.
Claim 8
Dependent Claim
50 words
A multi-disk player as recited in Claim 4 further comprising means for reading a second current value from said numerical value forming means and for causing said playing means to select and play one of a plurality of pieces recorded on said selected disk according to said second current value.
Claim 9
Dependent Claim
35 words
A multi-disk player as recited in Claim 4, wherein a period of said changes of said numerical value forming means is short compared to a period of said movement of said selecting and conveying means.
References Cited (Backward Citations)
No citation records indexed.
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