EP0565556A1 - Music making machine for playing selected pre-recorded record discs - Google Patents

Music making machine for playing selected pre-recorded record discs

Info

Publication number
EP0565556A1
EP0565556A1 EP19920901556 EP92901556A EP0565556A1 EP 0565556 A1 EP0565556 A1 EP 0565556A1 EP 19920901556 EP19920901556 EP 19920901556 EP 92901556 A EP92901556 A EP 92901556A EP 0565556 A1 EP0565556 A1 EP 0565556A1
Authority
EP
European Patent Office
Prior art keywords
disc
memory
data
playing
rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19920901556
Other languages
German (de)
French (fr)
Inventor
Ian Blakeway
Frank Holmes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0565556A1 publication Critical patent/EP0565556A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/30—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for musical instruments
    • G07F17/305—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for musical instruments for record players
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
    • G11B17/228—Control systems for magazines
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs

Definitions

  • This invention relates to a machine for playing selected pre-recorded record discs chosen from a store of record discs. The particular disc played is selected by a user.
  • the invention relates particularly, but not exclusively to coin or token operated machines known generally as juke boxes.
  • a juke box is often located in a public area such as a public house, and a disc or a track from a disc may be played by paying the fee in coins or tokens, and selecting a piece of music by, for example, pressing an appropriate button.
  • a known juke box comprises a store of pre recorded record discs, means for playing a selected disc, and means for selecting a selected disc from the store and transferring the disc to the playing means where it is played.
  • a juke box has a store of discs, one or more of which are selected by the user in exchange for cash or tokens. Selections are played successively either in order of selection, or in numerical serial number sequence. Selections could be the whole of the disc, or one or more tracks from a disc.
  • juke boxes can sometimes be programmed to play random or background music to either promote the use of the juke box or to give atmosphere.
  • a problem with known juke boxes is that typically discs have to be selected and transferred to the play means and transferred back again mechanically, and there is therefore a delay between the end of one music selection.
  • a music making machine for playing selected pre-recorded record discs comprising a store of discs; a playing device for playing a selected disc from the store; selection means for selecting a disc from the store and transferring it to the playing device, characterised in that the playing device comprises: a memory for storing data from the disc; playing means for writing data from the disc into the memory; and reading means for reading the data from the memory.
  • the data from a selected disc may thus be played after it has been played by the playing means.
  • the tiny lapse between the disc being played by the playing means, and the data of it being read from the memory depends on the size of the memory, and on the rate at which data is written into the memory.
  • the disc may be replaced in the disc store leaving the playing means available to play a second selected disc. Data from the second disc may similarly be written- into the memory, while the data from the first disc is being read from the memory. It is thus possible to ensure that music is played continuously without a break occuring between the end of one piece of music and the start of the next.
  • the machine further comprises control means for controlling the rate at which data from the selected disc is written into the memory.
  • the data from the selected disc may be written into the memory at any suitable rate, and may be a fixed rate or a variable rate.
  • the rate at which data is written into the memory is faster than the rate at which data is read from the memory, until a first pre-determined level of memory space has been used. At this point, the rate of writing may be slowed down or even stopped ⁇ while data may continue to be read. When the memory space available reaches a second pre-determined level, the original rate of writing may be resumed. This ensures that the memory does not become ful1.
  • the memory comprises a plurality of separate memories, for ease of control.
  • the machine further comprises a digital to analogue convertor for converting the digital data read from the memory into analogue from such that the data may then be passed to an audio system connected with the juke box to be played to the customer.
  • the machine according to the invention is particularly suitable for use with compact discs, in which data is stored in digitial form. However, the machine may also be used to play records, in which the data is stored in analogue form. If the machine is to be used with records, the machine will further comprise an analogue to digital convertor for converting the analogue signal from the record into digital form before the data is stored in the memory.
  • Figure 1 is a schematic diagram of a known music making machine.
  • Figure 2 is a schematic diagram of a machine according to the present invention.
  • a known juke box comprises a disc store 5 which can be rotated to bring any disc in the store into line with a disc moving device 3.
  • the disc moving device 3 can then move the disc onto the playing device 1.
  • the playing device can then play the selected disc or track from that disc.
  • a music making machine according to the invention is shown.
  • the described machine relates to a machine used to play music from a compact disc containing data in digital form, but discs containing analogue information can also be played using a machine according to the invention, by the addition of an analogue to digital convertor which converts the analogue signal from the analogue disc into digital form.
  • a disc can be moved from a disc store 21 and played by playing means 22.
  • the playing means has been adapted or adjusted to supply data from the disc at a rate greater than the rate needed to hear the resultant music.
  • the digital information extracted from the disc during playing by the playing means 22 is written into memory 23.
  • the memory is shown as a single unit, although it may comprise a number of separate memories for ease of control.
  • the rate at which the information is written into the memory 23 is controlled by control computer 4 and can be faster than the speed necessary to hear the resultant music. This speed can be fixed or variable under the control of the computer 4.
  • the memory 23 is read, and data is removed, mainly at a speed necessary to hear music at the correct speed and the data is passed via a read control 27 to a digital to analogue convertor 25. The resulting signals are passed into the normal audio system 26. If the speed of the writing of the data into the memory 23 was always faster than the speed of reading out of the memory 23, then the memory 23 would become full. This is avoided by the slowing of the rate of, or the stopping of the rate of writing into the memory 23 once a preset level of memory space is used. Data continues to be read and removed from the memory when this preset level of memory space has been used, and eventually, when a second preset level of memory space is available, the writing can be recommenced, or recontinued at the original rate.
  • a selected disc is taken from the disc store 21 and placed on the disc playing means 22.
  • the selected track is played at twice the speed normally required to convert the data extracted into music.
  • the data extracted is written into the memory 23 which can hold the data necessary to play 2 minutes of music. This transfer of data will therefore take 1 minute in total.
  • the speed could be any speed greater than the rate required to convert the data into music.
  • the data first written into the memory 23 is extracted and converted into an analogue signal to be passed to the audio system and be played to the customer.
  • the rate of writing in of the data into the memory 23 is now slowed to the same rate of the extraction of data. This rate is variable under control of control computer 24 to keep the memory space at the desired level.
  • the disc When all the data has been extracted from the selected track on the disc, the disc is changed in the normal way and replaced with a second selected disc. During this time, music is still being heard which originated from the original selected disc. Data is now extracted from the second selected disc and placed in the memory 23 in locations following on from those used from the first selected disc. As the reading of the stored data from the first selected disc nears its end, the speed of reading is increased. However the data being fed to the convertor 25 is maintained at a constant speed. This gives enough data held in the read control to supply a pre-determined amount of music. Typically, this would be 1 second of music. At the end of the data being read originating from the first selected disc, the reading continues without break onto the data from the second selected disc.
  • the last moments, typically a half second of data from the first disc and the first moments, typically a half second of data from the second disc, are now respectively progressi ely reduced in value for the first selected disc and progressively less reducing value for the second selected disc to give the effect when played as music of a fade down to zero and a fade up from zero respectively and the data mixed to give a resulting signal which when converted to an analogue signal and passed through the audio system gives a fade up/down and mixed found previously described.
  • An alternative method of fade and mix can be achieved by changing the value of the data from the later part of the first selected disc by a controlled processing and mixing with process data from the first part of the second selected disc. Alternatively, it is possible to process both digital signals separately and then cross fade and mix resulting analogue signal. At the end of the selection from the second selected disc the above process is repeated until all selections are played.

Abstract

Une machine à musique automatique comprend un dispositif de stockage (21) de disques à partir duquel des disques peuvent être choisis pour être lus par un électrophone (22). L'électrophone fournit des données relatives à la vitesse d'écoute. Les données extraites d'un disque alors qu'il est joué sont inscrites dans la mémoire (28). Grâce à cette mémoire, il est possible de passer de la musique continuellement sans qu'une interruption ait lieu entre la fin d'un morceau de musique et le début du prochain.An automatic music machine includes a disc storage device (21) from which discs can be selected to be played by a recorder (22). The recorder provides data relating to listening speed. The data extracted from a disc while it is being played is written to memory (28). Thanks to this memory, it is possible to play music continuously without an interruption between the end of one piece of music and the start of the next.

Description

MUSIC MAKING MACHINE FOR PLAYING SELECTED PRE-RECORDED RECORD DISCS
This invention relates to a machine for playing selected pre-recorded record discs chosen from a store of record discs. The particular disc played is selected by a user. The invention relates particularly, but not exclusively to coin or token operated machines known generally as juke boxes.
As is very well known, a juke box is often located in a public area such as a public house, and a disc or a track from a disc may be played by paying the fee in coins or tokens, and selecting a piece of music by, for example, pressing an appropriate button.
A known juke box comprises a store of pre recorded record discs, means for playing a selected disc, and means for selecting a selected disc from the store and transferring the disc to the playing means where it is played. Typically, a juke box has a store of discs, one or more of which are selected by the user in exchange for cash or tokens. Selections are played successively either in order of selection, or in numerical serial number sequence. Selections could be the whole of the disc, or one or more tracks from a disc. In addition to the selected music, juke boxes can sometimes be programmed to play random or background music to either promote the use of the juke box or to give atmosphere.
A problem with known juke boxes is that typically discs have to be selected and transferred to the play means and transferred back again mechanically, and there is therefore a delay between the end of one music selection.
According to the invention there is provided a music making machine for playing selected pre-recorded record discs comprising a store of discs; a playing device for playing a selected disc from the store; selection means for selecting a disc from the store and transferring it to the playing device, characterised in that the playing device comprises: a memory for storing data from the disc; playing means for writing data from the disc into the memory; and reading means for reading the data from the memory.
The data from a selected disc may thus be played after it has been played by the playing means. The tiny lapse between the disc being played by the playing means, and the data of it being read from the memory depends on the size of the memory, and on the rate at which data is written into the memory. Once the data from the selected disc has been written into the memory, the disc may be replaced in the disc store leaving the playing means available to play a second selected disc. Data from the second disc may similarly be written- into the memory, while the data from the first disc is being read from the memory. It is thus possible to ensure that music is played continuously without a break occuring between the end of one piece of music and the start of the next.
Advantageously, the machine further comprises control means for controlling the rate at which data from the selected disc is written into the memory. The data from the selected disc may be written into the memory at any suitable rate, and may be a fixed rate or a variable rate.
Preferably, the rate at which data is written into the memory is faster than the rate at which data is read from the memory, until a first pre-determined level of memory space has been used. At this point, the rate of writing may be slowed down or even stopped^ while data may continue to be read. When the memory space available reaches a second pre-determined level, the original rate of writing may be resumed. This ensures that the memory does not become ful1.
Preferably, the memory comprises a plurality of separate memories, for ease of control. Conveniently, the machine further comprises a digital to analogue convertor for converting the digital data read from the memory into analogue from such that the data may then be passed to an audio system connected with the juke box to be played to the customer.
The machine according to the invention is particularly suitable for use with compact discs, in which data is stored in digitial form. However, the machine may also be used to play records, in which the data is stored in analogue form. If the machine is to be used with records, the machine will further comprise an analogue to digital convertor for converting the analogue signal from the record into digital form before the data is stored in the memory.
The invention will now be described by way of example only with reference to the accompanying figures in which Figure 1 is a schematic diagram of a known music making machine.
Figure 2 is a schematic diagram of a machine according to the present invention.
Referring to Figure 1 a known juke box is shown comprises a disc store 5 which can be rotated to bring any disc in the store into line with a disc moving device 3. The disc moving device 3 can then move the disc onto the playing device 1. The playing device can then play the selected disc or track from that disc.
Referring to Figure 2, a music making machine according to the invention is shown. The described machine relates to a machine used to play music from a compact disc containing data in digital form, but discs containing analogue information can also be played using a machine according to the invention, by the addition of an analogue to digital convertor which converts the analogue signal from the analogue disc into digital form. In the machine of Figure 2, a disc can be moved from a disc store 21 and played by playing means 22. The playing means has been adapted or adjusted to supply data from the disc at a rate greater than the rate needed to hear the resultant music. The digital information extracted from the disc during playing by the playing means 22 is written into memory 23. The memory is shown as a single unit, although it may comprise a number of separate memories for ease of control. The rate at which the information is written into the memory 23 is controlled by control computer 4 and can be faster than the speed necessary to hear the resultant music. This speed can be fixed or variable under the control of the computer 4.
The memory 23 is read, and data is removed, mainly at a speed necessary to hear music at the correct speed and the data is passed via a read control 27 to a digital to analogue convertor 25. The resulting signals are passed into the normal audio system 26. If the speed of the writing of the data into the memory 23 was always faster than the speed of reading out of the memory 23, then the memory 23 would become full. This is avoided by the slowing of the rate of, or the stopping of the rate of writing into the memory 23 once a preset level of memory space is used. Data continues to be read and removed from the memory when this preset level of memory space has been used, and eventually, when a second preset level of memory space is available, the writing can be recommenced, or recontinued at the original rate.
In use, a selected disc is taken from the disc store 21 and placed on the disc playing means 22. The selected track is played at twice the speed normally required to convert the data extracted into music. The data extracted is written into the memory 23 which can hold the data necessary to play 2 minutes of music. This transfer of data will therefore take 1 minute in total. The speed could be any speed greater than the rate required to convert the data into music.
During this process, the data first written into the memory 23 is extracted and converted into an analogue signal to be passed to the audio system and be played to the customer. The rate of writing in of the data into the memory 23 is now slowed to the same rate of the extraction of data. This rate is variable under control of control computer 24 to keep the memory space at the desired level.
When all the data has been extracted from the selected track on the disc, the disc is changed in the normal way and replaced with a second selected disc. During this time, music is still being heard which originated from the original selected disc. Data is now extracted from the second selected disc and placed in the memory 23 in locations following on from those used from the first selected disc. As the reading of the stored data from the first selected disc nears its end, the speed of reading is increased. However the data being fed to the convertor 25 is maintained at a constant speed. This gives enough data held in the read control to supply a pre-determined amount of music. Typically, this would be 1 second of music. At the end of the data being read originating from the first selected disc, the reading continues without break onto the data from the second selected disc. The last moments, typically a half second of data from the first disc and the first moments, typically a half second of data from the second disc, are now respectively progressi ely reduced in value for the first selected disc and progressively less reducing value for the second selected disc to give the effect when played as music of a fade down to zero and a fade up from zero respectively and the data mixed to give a resulting signal which when converted to an analogue signal and passed through the audio system gives a fade up/down and mixed found previously described. An alternative method of fade and mix can be achieved by changing the value of the data from the later part of the first selected disc by a controlled processing and mixing with process data from the first part of the second selected disc. Alternatively, it is possible to process both digital signals separately and then cross fade and mix resulting analogue signal. At the end of the selection from the second selected disc the above process is repeated until all selections are played.

Claims

1. A music making machine for playing selected pre¬ recorded record discs comprising: a store of discs; a playing device for playing a selected disc from the store; selection means for selecting a disc from the store and transferring it to the playing device, characterised in that the playing device comprises a memory for storing data from a disc; playing means for writing data from the disc into the memory; and reading means for reading the data from the memory.
2. A machine according to claim 1 further comprising control means for controlling the rate at which data from the selected disc is written into the memory.
3. A machine according to claim 2 wherein the control means controls the rate at which data is written, such that the rate at which data is written into the memory is faster than the rate at which data is read from the memory, until the first predetermined level of memory space has been used.
4. A machine according to any one of the preceding claims wherein the memory comprises a plurality of separate memories.
5. A machine according to any one of the preceding claims, further comprising a digital analogue convertor.
6. A machine substantially as hereinbefore described with reference to Figure 2 of the accompanying drawings.
EP19920901556 1991-01-04 1991-12-31 Music making machine for playing selected pre-recorded record discs Withdrawn EP0565556A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919100163A GB9100163D0 (en) 1991-01-04 1991-01-04 Music making machine for playing selected pre-recorded discs
GB9100163 1991-01-04

Publications (1)

Publication Number Publication Date
EP0565556A1 true EP0565556A1 (en) 1993-10-20

Family

ID=10687972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920901556 Withdrawn EP0565556A1 (en) 1991-01-04 1991-12-31 Music making machine for playing selected pre-recorded record discs

Country Status (4)

Country Link
EP (1) EP0565556A1 (en)
AU (1) AU9131691A (en)
GB (1) GB9100163D0 (en)
WO (1) WO1992012515A1 (en)

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Publication number Priority date Publication date Assignee Title
DE69323385T2 (en) * 1992-10-26 1999-07-01 Sony Corp Record player
AU676735B2 (en) * 1993-06-03 1997-03-20 Sega Enterprises, Ltd. Apparatus and method for reproducing data from disc, method for recording data on disc, and disc
JP3739812B2 (en) * 1994-01-20 2006-01-25 パイオニア株式会社 Disc changer
KR0132828B1 (en) * 1994-07-26 1998-04-18 김광호 Method and apparatus of reproducing reserved program in a compact disc player
US5731923A (en) * 1995-10-05 1998-03-24 Nippon Columbia Co., Ltd. Medium recording apparatus and medium reproducing apparatus, and medium recording method and medium reproducing method, and medium used therefor
GB9616047D0 (en) 1996-07-31 1996-09-11 Glaxo Group Ltd Medicament carrier with agglomerated large medicament particles and related method of manufacture thereof
JPH10154375A (en) * 1996-11-20 1998-06-09 Nippon Columbia Co Ltd Optical disk reproducing device
EP0932157A1 (en) * 1998-01-26 1999-07-28 Deutsche Thomson-Brandt GmbH Automatically performed crossover between two consecutively played back sets of audio data
JP2000152134A (en) * 1998-11-11 2000-05-30 Mitsubishi Electric Corp Video reproducing device

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Publication number Priority date Publication date Assignee Title
JPS62164276A (en) * 1986-01-13 1987-07-20 Matsushita Electric Ind Co Ltd Information recording and reproducing device
KR910005644B1 (en) * 1986-09-19 1991-08-01 가부시키가이샤 도시바 Disk recording/reproducing apparatus
JPH0770132B2 (en) * 1988-07-21 1995-07-31 日本鋼管株式会社 Disk automatic exchange device

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
AU9131691A (en) 1992-08-17
GB9100163D0 (en) 1991-02-20
WO1992012515A1 (en) 1992-07-23

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