EP0210006A2
Expired / Lapsed
EP
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Record information reproducing method with content identifiers
Assignee: Pioneer Corp
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Filing: 1986-07-03
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Granted: —
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Expires: 2006-07-03
Abstract
Abstract A method of operating a disk player that reproduces information recorded on a disk. Programs on the disk are addre- seed from a directory in a memory and the programs are sequentially accessed according to the order in the directory. The directory can be filled by inserting random numbers or by scanning through the programs or over the tracks. A table of contents at the beginning of the disk is read if possible. The tracks can be scanned and only tracks having new programs are reproduced. Also a playback position servo operates with a dead-zone in the drive voltage.
Inventors
- 👤 Yoshihiko C/O Pioneer Electronic Corp. Watanabe
- 👤 Tsuneyoshi C/O Pioneer Electronic Corp. Nagashita
- 👤 Susumu C/O Pioneer Electronic Corp. Niinuma
- 👤 Isamu C/O Pioneer Electronic Corp. Nomura
- 👤 Kimito C/O Pioneer Electronic Corp. Kobayashi
- 👤 Hiroyuki C/O Pioneer Electronic Corp. Abe
- 👤 Takayuki C/O Pioneer Electronic Corp. Iijima
- 👤 Kazuto C/O Pioneer Electronic Corp. Shimokawa
- 👤 Akira C/O Pioneer Electronic Corp. Haeno
- 👤 Yoshio C/O Pioneer Electronic Corp. Aoyagi
- 👤 Toshiyuki C/O Pioneer Electronic Corp. Kimura
- 👤 Akio C/O Pioneer Electronic Corp. Namiki
- 👤 Isao C/O Pioneer Electronic Corp. Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 18:17
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/04; G11B17/05; G11B17/051; G11B17/022; G11B17/028; G11B17/0284; G11B17/0286; G11B19/00; G11B19/02; G11B19/06; G11B21/00; G11B21/02; G11B21/08; G11B21/081; G11B21/083; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/11; G11B33/00; G11B33/02; G11B33/08; G11B7/00; G11B7/08; G11B7/085; G11B7/08505; G11B7/0857; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/60; G11B2220/65; G11B2220/90; G11B2220/91; G11B2220/913; G11B27/002; G11B27/005; G11B27/007; G11B27/107; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; G11B27/36; G11B7/002; G11B7/0037; G11B7/004; G11B7/005; G11B7/007
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
101 words
A method of reproducing recorded program information, comprising: storing plural pieces of program information on a recording medium; storing address informations in a memory of locations on the recording medium in which the plural pieces of program information is stored, the address information being stored in an order in the memory; and setting a first switch to a first state; resetting the first switch to a second state; repeating the setting and resetting steps; and sequentially in a continuation of the order pointing to the address informations stored in the memory during the repetitive settings and resettings of the first switch.
Claim 2
Independent Claim
101 words
A method of reproducing recorded program information, comprising: storing plural pieces of program information on a recording medium; storing address informations in a memory of locations on the recording medium in which the plural pieces of program information is stored, the address information being stored in an order in the memory; and setting a first switch to a first state; resetting the first switch to a second state; repeating the setting and resetting steps; and sequentially in a continuation of the order pointing to the address informations stored in the memory during the repetitive settings and resettings of the first switch.
Claim 3
Dependent Claim
34 words
A method according to claim 1, in which, responsive to setting of the first switch in the first state, sequentially reproducing the program information addressed by the pointed to address information is sequentially produced.
Claim 4
Dependent Claim
37 words
A method according to claim 2, further comprising: determining if the memory contains the address information; and if the memory does not contain the address information, storing a random number as the address information in the memory.
Claim 5
Independent Claim
65 words
A method according to any of claims 1 to 3, wherein: responsive to a subsequent setting of the first switch to the first state, the sequential pointing and reproducing steps sequentially point to the address information and reproduce the program information addressed by the pointed to address information in a continuation of the order before the setting of the first switch to the second state.
Claim 6
Independent Claim
132 words
A method according to any of claims 1 to 4, further comprising: setting a second switch to either a third or a fourth state; responsive to the first state of the first switch together with the third state of the second switch, the sequential pointing step sequentially and periodically points to an adjacent address information and subsequentially, responsive to a subsequent fourth state of the second switch, reproducing the program information addressed by the last pointed to address information; and responsive to the second state of the first switch together with the third state of the second switch, displaying an address information pointed to in a continuation of the order and subsequently responsive to the fourth state of the second switch reproducing the program information addressed by the pointed to address information.
Claim 7
Independent Claim
141 words
A method according to any of claims 1 to 4, further comprising: setting a second switch to either a third or a fourth state; responsive to the first state of the first switch together with the third state of the second switch, the sequential pointing step sequentially and periodically points to an adjacent address information and subsequently, responsive to a subsequent fourth state of the second switch, reproducing the program information addressed by the last pointed to address information; and responsive to the second state of the first switch together with the third state of the second switch, displaying an address information pointed to in a continuation of the order and periodically incrementing the address information and responsive to a subsequent setting of the fourth state of the second switch reproducing the program addressed by the pointed to incremented address information.
Claim 8
Dependent Claim
77 words
A method according to claim 5, further comprising: firstly actuating a third switch; responsive to the first actuation, sequentially reproducing from the recording medium beginning portions of predetermined length of the plural pieces of program information having respective addresses upon the recording medium; and secondly actuating the third switch; wherein, responsive to the second actuation, the storing step stores the respective address of the piece being reproduced during the second actuation in the order in the memory.
Claim 9
Dependent Claim
89 words
A carriage servo unit in a disk player. comprising: player. a pick up (117) for reading information recorded on a disk; a carriage (48) movable in a radial direction of the disk and carrying the pick-up; a motor (51) for driving the carriage; switching means (120) for selectively applying a variable carriage drive voltage to the motor; and control means (114) for controlling the switching means to apply the drive voltage to motor only when an absolute value of the drive voltage exceeds a predetermined voltage (V ref ).
Claim 10
Dependent Claim
89 words
A carriage servo unit in a disk player. comprising: player. a pick up (117) for reading information recorded on a disk; a carriage (48) movable in a radial direction of the disk and carrying the pick-up; a motor (51) for driving the carriage; switching means (120) for selectively applying a variable carriage drive voltage to the motor; and control means (114) for controlling the switching means to apply the drive voltage to motor only when an absolute value of the drive voltage exceeds a predetermined voltage (V ref ).
Claim 11
Dependent Claim
49 words
A carriage servo unit according to claim 8, further comprising short-circuit means (Q) for selectively short circuiting the motor and wherein the control means (114) controls the short-circuit means (Q) to short circuit the motor when the absolute value of the drive voltage is less than the predetermined voltage.
Claim 12
Dependent Claim
27 words
A carriage servo unit according to claim 8 or claim 9, wherein the motor (51) is a biderectional motor and the drive voltage is a bipolar voltage.
Claim 13
Dependent Claim
54 words
A playback method, comprising the steps of: setting a timer; then reading a read-in area of a disk, the read-in area containing formatting information about a plurality of program informations recorded on the disk; and after the lapse of the timer or the completion of the reading, sequentially reproducing the plurality of program informations.
Claim 14
Dependent Claim
54 words
A playback method, comprising the steps of: setting a timer; then reading a read-in area of a disk, the read-in area containing formatting information about a plurality of program informations recorded on the disk; and after the lapse of the timer or the completion of the reading, sequentially reproducing the plurality of program informations.
Claim 15
Dependent Claim
90 words
A reproduction method for a disk, comprising the steps of: jumping over a fixed number of tracks to a new track; then reading from the disk beginning at the new track address information on contents of the new track; determining if the address information as the new track differs from previous address information; if the determining step determines the address information does not differ, then returning to the jumping step; and if the determining step determines that the address information does differ, then reproducing the contents of the new track.
Claim 16
Dependent Claim
90 words
A reproduction method for a disk, comprising the steps of: jumping over a fixed number of tracks to a new track; then reading from the disk beginning at the new track address information on contents of the new track; determining if the address information as the new track differs from previous address information; if the determining step determines the address information does not differ, then returning to the jumping step; and if the determining step determines that the address information does differ, then reproducing the contents of the new track.
Claim 17
Dependent Claim
24 words
A reproduction method according to claim 12, wherein the address informatio contains major divisions of contents of the disk and sub-divisions of the major-divisions.
References Cited (Backward Citations)
No citation records indexed.
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