Classifications

• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
• • 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
  • G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc
• • 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
• • 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
  • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
  • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
  • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
  • G11B27/327—Table of contents
  • G11B27/329—Table of contents on a disc [VTOC]
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
  • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
  • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
• • 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

Definitions

• the present invention relates to an installation for reproducing data recorded in digital form on an optical disc. It also relates to an reproducible optical disc in such an installation.
• Optical discs carrying a meric recording are known under the designation "Compact Disc” (CD) and are marketed in a standardized form on a very large scale as carriers of sound recordings. The players for such audio CD discs are therefore also widely used.
• CD Compact Disc
• telecommunication is gaining an increasingly large audience, especially with the introduction of relatively simple and inexpensive terminal devices, a representative of which is in France the "Minitel". A description of this last device can be found for example in the brochure "Specificatiors Technical of Use of the Minitel 1B" published by the Ministry of Posts and Telecommunications (Teletel) in November 1986, whose tale is an integral part of this description.
• the invention aims to provide an installation allowing both the reproduction of data, in particular in visual form but also in audio form, using conventional disc player devices and audio / video equipment st dard r as well as terminals. existing data processing. More particularly, the invention proposes to implement the device for actuating and controlling the data processing terminal and the remote control of the disc player for addressing so as to allow selective reproduction of information. from the recording medium.
• the invention also aims to provide compact discs carrying information recorded in a form compatible with the tele ⁇ computer standard of the terminal device used.
• the installation according to the invention is immediately characterized in that it comprises an optical disc player having at least first and second signal outputs, a data processing terminal having at least a first signal input. and first connection means for connecting at least the first output of the disc player to the first input of the terminal so as to allow visual reproduction of data recorded on the disc.
• the installation also comprises a sound reproduction device having at least one signal input as well as second connection means for connecting at least the second output of the disc player to said input. the sound reproducing device so as to allow sound reproduction of data recorded on the disc.
• the data processing terminal comprising a device for decoding and viewing the information received, said first connection means can, according to a form 3.
• the optical disc according to the invention comprises a recording organized in a certain number of tracks, the different tracks being mapped by addressing marks allowing addressing by the disc player, each track containing at least one recording. images to a tele-computer standard usable by the terminal.
• the recording comprises at least two channels, a first channel comprising the said image recordings and a second channel comprising the sound recordings.
• said first connection means comprise a device for processing the signals at the first output of the disc player. More particularly / in an installation in which the disc player comprises a remote control device and the data processing terminal comprises a device for operation and control, and a corresponding comma signal output, the third connection means are seen to connect said output of the control actuating device to an input of the remote control device of the disc player.
• These third connection means preferably cost at least one interface device for tering the control signals to the disc player remote control device.
• said first and third connection means preferably comprise a mid processor for processing the information contained in the control signals coming from the tele-informa terminal only for the purpose of remote control of the disc player and control of said first connection means.
• optical disc according to the invention reproducible in this latter installation comprises a recording organized in ranges defined by markers allowing addressing by means of the third means of 4.
• the recording on such a disc preferably comprises at least two channels, a first channel comprising said image recording and control instructions and a second channel comprising sound recordings.
• FIG 1 single represents the block diagram of an embodiment of an installation according to the invention.
• the installation comprises a p a disc player 1 in the form of an audio compact disc player, having in particular two signal outputs 2 3 which correspond respectively to the right and left channels of an audio recording, and a remote control input 2
• the output 3 is connected, via a line to an input 11 of a channel of audio equipment, that is to say essentially of an amplifier and a loudspeaker
• the installation comprises a tele-computer terminal 4 which in particular has a device for decoding and displaying the information received 13, for example the screen nodule of the "Minitel" terminal, and a operation and control 14 such as the keyboard module of the terminal.
• These devices are connected by means of connection which can be combined, apart from simple lines in an interface box 24.
• an adapter 7 connected by a line 6 to the output 2 of the disc player and connected on the other hand to its output, by a connection 25, to a switching device 8.
• the output of the latter East connected by a line 9 to an input 5 of the screen module 13.
• the actuation and control device represented in this example by the keyboard module 14 of the Minitel terminal 4 is connected by an output 15 by means of a line 16 to an interface device 17 itself connected by a connection 18 to a microprocessor 19.
• the latter interprets the data it receives and transmits them on the one hand via a connection 20 to an interface device 21 connected by a lineexcellent22 at the remote control input 23 of the diq reader 1 and controls on the other hand, via a connection 26.1st switch device 8 forming part of said first connection means.
• the information recorded on the compact disc used in the context of the installation is for example made up of 1500 ranges addressable by the keyboard of the "Minitel" terminal, each range corresponding to a screen page with 40 columns and 25 rows.
• the ⁇ alphanumeric or graphic characters thus recorded on the right channel of the audio type compact disc are for example those specified in the data given in the aforementioned brochure on "Minitel".
• Each page corresponds to three seconds of recording on the disc / the first 500 ms being for example reserved for the connection protocol and initialization of the terminal screen and the others 2 7 5 seconds for recording the age and possibly a disconnection order.
• the left channel of the compact disc is intended for sound recording, for example for comments or musical accompaniments recorded in digital audio technique that is compatible with the existing audio CD standard.
• the data defining the alphanumeric or graphic characters of channel 3 are recorded according to a standard compatible with the data processing standard usable by the data processing terminal.
• the signals are received by the adapter 7 of the interface box and the signal is then applied by means of the switching device 8 to the input 5 constituted in this example by a peri-computer socket of the screen module 13 of the terminal 4.
• the switching authorization is provided to the device 8 by the microprocessor 19 after receipt of specific information recognized by a digital correlator.
• the protocol which resides entirely in the microprocessor 19 program memory, and the switchable electronic interfaces 17 and 21, are adapted to the reader and terminal devices used.
• the control signals for controlling the player are transmitted at a speed of 4800 bauds at interface 17, the frequency modulated data appearing at output 2 of the disk teur being transmitted by said first connection means 6, 7, 25, 8, 9 also at 4800 bauds. It should also be noted that the interpretation of the commands from the keyboard module of the "Minitel" terminal is always a priority for the microprocessor 19 before any other action by all of the connection means.
• a first track will generally be reserved for displaying a menu, while the other tracks may each contain four images at VIDEOTEX st according to the above-mentioned brochure as well as sound recording in CD audio quality plus terminal disconnection characters. "Minitel" for a stop on the age.

Landscapes

• Signal Processing For Digital Recording And Reproducing (AREA)
• Optical Recording Or Reproduction (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9352333

Family Applications (1)

Country Status (8)

Cited By (5)

Families Citing this family (1)

Citations (3)

• 1987
  • 1987-06-22 FR FR8708715A patent/FR2616952B1/fr not_active Expired - Fee Related
• 1988
  • 1988-06-20 WO PCT/FR1988/000331 patent/WO1988010491A1/fr not_active Application Discontinuation
  • 1988-06-20 EP EP88905880A patent/EP0318568A1/fr not_active Ceased
  • 1988-06-20 KR KR1019890700308A patent/KR890702187A/ko not_active Application Discontinuation
  • 1988-06-20 JP JP63505519A patent/JPH02500867A/ja active Pending
  • 1988-06-20 NL NL8820448A patent/NL8820448A/nl unknown
• 1989
  • 1989-02-08 GB GB8902775A patent/GB2225664B/en not_active Expired - Fee Related
  • 1989-03-03 CH CH810/89A patent/CH674428A5/fr not_active IP Right Cessation

Patent Citations (3)

Also Published As

Similar Documents

Legal Events