WO1985004024A1 - A system for recording images and relating sound - Google Patents

A system for recording images and relating sound Download PDF

Info

Publication number
WO1985004024A1
WO1985004024A1 PCT/NL1985/000012 NL8500012W WO8504024A1 WO 1985004024 A1 WO1985004024 A1 WO 1985004024A1 NL 8500012 W NL8500012 W NL 8500012W WO 8504024 A1 WO8504024 A1 WO 8504024A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
carrier
code
image
computer
Prior art date
Application number
PCT/NL1985/000012
Other languages
French (fr)
Inventor
Ted Struik
Original Assignee
Ted Struik
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 Ted Struik filed Critical Ted Struik
Publication of WO1985004024A1 publication Critical patent/WO1985004024A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00137—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
    • G11B20/00152—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users involving a password
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/04—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is not on, but is synchronised with, a moving-picture film
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • 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
    • 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 invention concerns a system for recording images and relating sound, comprising an image carrier, on which images are recorded and a sound carrier to record sound.
  • the sound carrier being separated from the image carrier, a position determining coded number being addressed to each image on the image carrier, a similarly coded number being addressed to the sound track on the sound carrier, and the image carrier and the sound carrier being scanned such as to reproduce simultaneously with the reproduced image the sound with the similarly coded number.
  • SUBSTITUTESHEET tion of image and sound can be achieved.
  • the sound is being recorded on the sound carrier according to the fixed code. This means that during playback the recorded informa- tion has to be decoded which is only possible by means of equipment in which the code is stored. By keeping the code secret, copying is only possible to those who know the secret code.
  • a further possibility for limiting unauthorized copying is storing the code separately from the sound carrier.
  • the code is only accessible by means of equipment of which the operation is dependent of the supply of a code recogni ⁇ tion number being known only to certain users, a further limitation of copying is achieved. It is also possible for every sound carrier to make use of different codes according to which the sound is being recorded on the sound carrier.
  • the code according to which the sound can be recorded can be stored in a computer connected to the telephone distribution network.
  • the system can be arranged such as to the computer supplying the secret code only after introducing the code recognition number. It is possible to have the sound on the sound carrier reproduced by reproducing equipment which destroys the code required for decoding after single use. This means that the authorized user should provide access to the computer again and again to obtain the code required* for playback. This further limits the possibility for unauthorized copying.
  • Figure 1 shows schematically a system with a separated image carrier and sound carrier according to the invention
  • figure 2 shows the system of figure 1 with means for coding the recorded sound
  • figure 3 shows the system according to the invention with means to allow decoding only after insertion of a recognition code number
  • figure 4 shows schematically the connection between the system according to the invention with a computer comprising the decoding code.
  • the position determining numbers recorded on the film 1 are being supplied to a comparator circuit 2.
  • the position determining numbers recorded on the sound disc 3 acting as sound carrier are being supplied to the comparator circuit 2 as well.
  • the drive of this carrier is being adapted by changing the con ⁇ trol such as to make the position determining numbers of the image carrier 1 and of the sound carrier 3 matching again.
  • the sound carrier 3 in the shape of a sound disc is being scanned by a laser system and the digital system obtained is being supplied to a digital-analog converter 4.
  • the output of the digital-analog converter 4 is being supplied to an ampli- fier 5, which reproduces the sound stereophonically through the loudspeakers 6 and 7.
  • the decode means 8 comprise the code required for decoding which can be inserted and exchanged by a printed circuit board.
  • recognition number lock circuit 9 is added. Only when the right code recognition number is inser ⁇ ted into this circuit 9, the switches 10 and 11 are closed and the image carrier 1 and the sound carrier 3 respectively can be made to operate.
  • the system according to figure 4 can only be made to operate in the following way.
  • the user inserts the code recognition number 13 into the computer 16 through the telephone extension 12 by means of the adaption circuit 14 and the telephone network 15. It is possible to insert besides the code recognition number other information like date and time. For instance the user could be a cinema opera ⁇ tor who has to have the disposal of the code for decoding the sound on preprogrammed times dependent on the beginning of the performance.
  • the computer 16 supplies the code to the personal computer 17 on the users location.
  • the image carrier 1 and the sound carrier 3 are put into operation.
  • the laser system scanning the sound disc 3 sends the information scanned to the personal computer 17, which can decode the recorded sound information by means of the code supplied by the computer 16 and can send it decoded to the digital-analog converter 4.
  • the personal computer 17 destroys the inserted code after use, so that with a follo ⁇ wing use the user has to insert the required data such as the code recognition number again through the telephone extension 12. On this way a nearly optimal protection against unauthorized copying is achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimiles In General (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

In a system for recording images and sound, image and sound are recorded on a separated carrier. A coded number is addressed to each image on the image carrier, a similarly coded number is addressed to the sound track on the sound carrier, the image carrier and the sound carrier being scaned such as to achieve synchronism of image and sound. By using a secret code illegal copying is obstructed. By using a computer it is possible to store a secret code therein, the computer supplying the code only after insertion of a code recognition number. A computer can be connected to the used computer through the telephone network for supplying the code.

Description

A system for recording images and relating sound
The invention concerns a system for recording images and relating sound, comprising an image carrier, on which images are recorded and a sound carrier to record sound.
Until now the sound relating to the images is being recorded on a separate sound track adjacent the film images on the film. Because the film and the sound are recorded on the same carrier, synchronisation of image and sound is thieved. This known system has several disadvantages. One .isadvantage is that the sound is being recorded analogously, which poses restrictions on the quality. Another major objec¬ tion is that on this way copying of movies and transcribing them onto video tape which is illegally offered for sale or for rent is very simple. Unauthorized copying of movies is a severe problem at present. The invention aimes to solve these difficulties. This is achieved according to the invention in that the sound carrier being separated from the image carrier, a position determining coded number being addressed to each image on the image carrier, a similarly coded number being addressed to the sound track on the sound carrier, and the image carrier and the sound carrier being scanned such as to reproduce simultaneously with the reproduced image the sound with the similarly coded number.
Because the image carrier and the sound carrier are separated physically, unauthorized copying is obstructed con¬ siderably. Besides it opens the possibility to choose an optimum medium for a sound carrier, i.e. a digitally recorded sound disc scanned by a laser. By addressing a position determining code number to the image and sound, synchronisa-
SUBSTITUTESHEET tion of image and sound can be achieved. To limit the possi¬ bility of unauthorized copying still further, the sound is being recorded on the sound carrier according to the fixed code. This means that during playback the recorded informa- tion has to be decoded which is only possible by means of equipment in which the code is stored. By keeping the code secret, copying is only possible to those who know the secret code.
A further possibility for limiting unauthorized copying is storing the code separately from the sound carrier. When the code is only accessible by means of equipment of which the operation is dependent of the supply of a code recogni¬ tion number being known only to certain users, a further limitation of copying is achieved. It is also possible for every sound carrier to make use of different codes according to which the sound is being recorded on the sound carrier.
The code according to which the sound can be recorded can be stored in a computer connected to the telephone distribution network. The system can be arranged such as to the computer supplying the secret code only after introducing the code recognition number. It is possible to have the sound on the sound carrier reproduced by reproducing equipment which destroys the code required for decoding after single use. This means that the authorized user should provide access to the computer again and again to obtain the code required* for playback. This further limits the possibility for unauthorized copying.
The invention will be explained by means of the accom¬ panying drawings. Figure 1 shows schematically a system with a separated image carrier and sound carrier according to the invention, figure 2 shows the system of figure 1 with means for coding the recorded sound, figure 3 shows the system according to the invention with means to allow decoding only after insertion of a recognition code number, and figure 4 shows schematically the connection between the system according to the invention with a computer comprising the decoding code.
The position determining numbers recorded on the film 1 are being supplied to a comparator circuit 2. The position determining numbers recorded on the sound disc 3 acting as sound carrier are being supplied to the comparator circuit 2 as well. When one of the carriers lags behind the other as appears from the comparison in the comparitor circuit 2, the drive of this carrier is being adapted by changing the con¬ trol such as to make the position determining numbers of the image carrier 1 and of the sound carrier 3 matching again. The sound carrier 3 in the shape of a sound disc is being scanned by a laser system and the digital system obtained is being supplied to a digital-analog converter 4. The output of the digital-analog converter 4 is being supplied to an ampli- fier 5, which reproduces the sound stereophonically through the loudspeakers 6 and 7.
In figure 2 between the laser system scanning the sound disc and the digital-analog-converter 4 the code means 8 is installed. The decode means 8 comprise the code required for decoding which can be inserted and exchanged by a printed circuit board.
In figure 3 recognition number lock circuit 9 is added. Only when the right code recognition number is inser¬ ted into this circuit 9, the switches 10 and 11 are closed and the image carrier 1 and the sound carrier 3 respectively can be made to operate.
The system according to figure 4 can only be made to operate in the following way. The user inserts the code recognition number 13 into the computer 16 through the telephone extension 12 by means of the adaption circuit 14 and the telephone network 15. It is possible to insert besides the code recognition number other information like date and time. For instance the user could be a cinema opera¬ tor who has to have the disposal of the code for decoding the sound on preprogrammed times dependent on the beginning of the performance. When the data inserted by the user through the telephone extension 12 coincide with the respective data stored in the computer 16, the computer 16 supplies the code to the personal computer 17 on the users location. Hereupon the image carrier 1 and the sound carrier 3 are put into operation. The laser system scanning the sound disc 3 sends the information scanned to the personal computer 17, which can decode the recorded sound information by means of the code supplied by the computer 16 and can send it decoded to the digital-analog converter 4. The personal computer 17 destroys the inserted code after use, so that with a follo¬ wing use the user has to insert the required data such as the code recognition number again through the telephone extension 12. On this way a nearly optimal protection against unauthorized copying is achieved.

Claims

CLAIMS :
1. System for recording images and relating sound, com¬ prising an image carrier on which images are recorded and a sound carrier to record the sound, the sound carrier being separated from the image carrier, a position determining coded number being addressed to each image on the image carrier, a similarly coded number being addressed to the sound track on the sound carrier and the image carrier and the sound carrier being scanned such as to reproduce simul¬ taneously with the reproduced image the sound with the similarly coded number, characterized in the sound being recorded on the sound carrier according to a fixed code.
2. System according to claim 1, characterized in the code of the sound carrier being stored separately.
3. System according to claim 2, characterized in the code being accessible only by means of equipment, the operation of which is dependent on the supply of a code recognition number being available only to certain users.
4. System according to claims 1-3, characterized in that the code according which the sound is registrated on the sound carrier, is different for each sound carrier.
5. System according to claim 3, characterized in that the code is stored in a computer being connected to the telephone distribution network.
6. System according to claim 3 and 5, characterized in that the sound of the sound carrier is reproduced by reproducing equipment which destroys the code needed for decoding after single use.
PCT/NL1985/000012 1984-02-28 1985-02-28 A system for recording images and relating sound WO1985004024A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8400619A NL8400619A (en) 1984-02-28 1984-02-28 IMAGE-SOUND SYSTEM.
NL8400619 1984-02-28

Publications (1)

Publication Number Publication Date
WO1985004024A1 true WO1985004024A1 (en) 1985-09-12

Family

ID=19843554

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1985/000012 WO1985004024A1 (en) 1984-02-28 1985-02-28 A system for recording images and relating sound

Country Status (3)

Country Link
EP (1) EP0172871A1 (en)
NL (1) NL8400619A (en)
WO (1) WO1985004024A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224929A2 (en) * 1985-12-04 1987-06-10 Sony Corporation Apparatus and method for preventing unauthorized dubbing of a recording signal
EP0230086A1 (en) * 1986-01-16 1987-07-29 John Mosely An improved process for exhibiting motion pictures
FR2594238A1 (en) * 1986-02-13 1987-08-14 Vallon Roger Recording sound on cinema films by compact disc
WO1990014614A1 (en) * 1989-05-24 1990-11-29 LÖCHEN, Elisabeth High fidelity film sound reproduction device
WO1993013457A1 (en) * 1991-12-20 1993-07-08 Digital Theater Systems Corporation Digital sound system for motion pictures with analog sound track emulation
WO1994004960A1 (en) * 1992-08-12 1994-03-03 Digital Theater Systems, L.P. Motion picture digital sound system and method with primary sound storage edit capability
US5450146A (en) * 1989-05-24 1995-09-12 Digital Theater Systems, L.P. High fidelity reproduction device for cinema sound
US5751398A (en) * 1990-09-28 1998-05-12 Digital Theater System, Inc. Motion picture digital sound system and method
EP0938024A1 (en) * 1998-02-18 1999-08-25 Fritz Bauer Device for obtaining synchronous sound filming
WO1999053497A1 (en) * 1998-04-08 1999-10-21 Songplayer Ltd. Multimedia system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001273A1 (en) * 1980-09-26 1982-04-15 B Loefberg Method for processing an information signal and means for carrying out the method
EP0074810A2 (en) * 1981-09-10 1983-03-23 Sony Corporation Subscription television system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001273A1 (en) * 1980-09-26 1982-04-15 B Loefberg Method for processing an information signal and means for carrying out the method
EP0074810A2 (en) * 1981-09-10 1983-03-23 Sony Corporation Subscription television system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Rundfunktechnische Mitteilungen, Vol. 20, No. 5, 1976 (Hamburg, DE) V.K.H. TRISSL: "Der Schneidetisch mit Zeitcodesteuerung", pages 203-210, see page 203 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224929A2 (en) * 1985-12-04 1987-06-10 Sony Corporation Apparatus and method for preventing unauthorized dubbing of a recording signal
EP0224929A3 (en) * 1985-12-04 1987-10-07 Sony Corporation Apparatus and method for preventing unauthorized dubbing of a recording signal
EP0230086A1 (en) * 1986-01-16 1987-07-29 John Mosely An improved process for exhibiting motion pictures
FR2594238A1 (en) * 1986-02-13 1987-08-14 Vallon Roger Recording sound on cinema films by compact disc
US5450146A (en) * 1989-05-24 1995-09-12 Digital Theater Systems, L.P. High fidelity reproduction device for cinema sound
FR2647561A1 (en) * 1989-05-24 1990-11-30 Chedeville Pascal HIGH RELIABILITY SOUND REPRODUCTION DEVICE FOR CINEMA
WO1990014614A1 (en) * 1989-05-24 1990-11-29 LÖCHEN, Elisabeth High fidelity film sound reproduction device
US5386255A (en) * 1990-09-28 1995-01-31 Digital Theater Systems, L.P. Motion picture digital sound system and method with primary sound storage edit capability
US5751398A (en) * 1990-09-28 1998-05-12 Digital Theater System, Inc. Motion picture digital sound system and method
WO1993013457A1 (en) * 1991-12-20 1993-07-08 Digital Theater Systems Corporation Digital sound system for motion pictures with analog sound track emulation
WO1994004960A1 (en) * 1992-08-12 1994-03-03 Digital Theater Systems, L.P. Motion picture digital sound system and method with primary sound storage edit capability
EP0938024A1 (en) * 1998-02-18 1999-08-25 Fritz Bauer Device for obtaining synchronous sound filming
WO1999053497A1 (en) * 1998-04-08 1999-10-21 Songplayer Ltd. Multimedia system

Also Published As

Publication number Publication date
EP0172871A1 (en) 1986-03-05
NL8400619A (en) 1985-09-16

Similar Documents

Publication Publication Date Title
EP0297242B1 (en) Recording/reproducing system and method with record restriction function
KR100584710B1 (en) Content management method, recording and/or reproducing apparatus, and recording medium
JP3010930B2 (en) Recording and playback device
JPH11243534A (en) Digital broadcast reception reproducing apparatus
MY115187A (en) Digital compact disc player security system reproducing method and apparatus
MY152844A (en) Signal recording and reproduction and signal record media
TW328584B (en) Data recording apparatus and method for preventing illegal copying
WO2001005148B1 (en) An optical disc, a recorder, a player, a recording method, and a reproducing method that are all used for the optical disc
MXPA00012448A (en) Device and method for encoding data, device and method for decoding data, and recording medium.
KR20020075568A (en) Method for controlling transmission and reception of data including ciphered data stream
KR960019077A (en) Illegal viewing and copy protection method of digital video system
US20010043798A1 (en) Recording medium for storing encrypted audio data, apparatus for and method of recording the same, and apparatus for and method of reproducing the same
JP2003109302A (en) Method and device for processing signal, method and device for reproducing signal and recording medium
WO1985004024A1 (en) A system for recording images and relating sound
EP0964397B1 (en) Digital information recording-reproducing apparatus
HK1013184A1 (en) Recording and reproduction of a trick mode bideo signal
MY126615A (en) Data record medium, recording apparatus, reproducing apparatus, and reproducing method
EP0396774A4 (en) Method and apparatus for controlling recording medium and recording medium produced under the control thereof
JPH06349196A (en) Digital information recording and reproducing device
EP1119854A1 (en) Transmission of a digital information signal having m bit pcm samples
EP0795173B1 (en) Recording/reproducing apparatus for storing a digital information signal in a storage medium, a method and a record carrier
JP3405336B2 (en) Digital information recording / reproducing apparatus, recording / reproducing method, and transmitting method
JPH04155658A (en) Recording/reproducing apparatus
KR20000061704A (en) Encryption method using of optical disk recording and reproducing method and apparatus
JPH0748278B2 (en) Recording / playback device

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): JP US

AL Designated countries for regional patents

Designated state(s): AT BE CH DE FR GB LU NL SE