EP0507119B1 - Enregistreur pour cassettes vidéo - Google Patents

Enregistreur pour cassettes vidéo Download PDF

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Publication number
EP0507119B1
EP0507119B1 EP92104148A EP92104148A EP0507119B1 EP 0507119 B1 EP0507119 B1 EP 0507119B1 EP 92104148 A EP92104148 A EP 92104148A EP 92104148 A EP92104148 A EP 92104148A EP 0507119 B1 EP0507119 B1 EP 0507119B1
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EP
European Patent Office
Prior art keywords
fact
video cassette
cassette recorder
recorder
block
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.)
Expired - Lifetime
Application number
EP92104148A
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German (de)
English (en)
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EP0507119A1 (fr
EP0507119B2 (fr
Inventor
Roberto Dini
Attilio Farina
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Edico SRL
Original Assignee
Edico SRL
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Publication of EP0507119B1 publication Critical patent/EP0507119B1/fr
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G15/00—Time-pieces comprising means to be operated at preselected times or after preselected time intervals
    • G04G15/006—Time-pieces comprising means to be operated at preselected times or after preselected time intervals for operating at a number of different times

Definitions

  • the present invention relates to a video cassette recorder, supplied with means for receiving a television program, means for recording the latter, a clock, a data memory, means for storing in said memory the time in which a program that is desired to be recorded begins and control means for reading said clock and said memory and for activating said receiving means and said means for recording the television program at the indicated time or at a pre-determined interval of time before.
  • EP-A-0 351 120 describes a video cassette recorder supplied with means for receiving a television program, means for recording the latter, a clock, a data memory, means for storing in said memory, the time at which a program that is desired to be recorded begins and control means for reading said clock and said memory and for activating said receiving means and said means for recording the television program at the indicated time or at a predetermined interval of time before and the programming of the recording operation can be maintained without interfering within normal use of the recorder.
  • the video recorder according to EP-A-0 351 120 reminds the user that he has made a timer programming at the videorecorder. Such reminder is realised by a periodical blinking of display means at the videorecorder display. In case that the user has displaced the cassette after the timer programming there will be displayed at the video recorder display by a blinking display that no cassette is in the video recorder. From EP-A-0 112 589 it is known a video recorder according to the preamble of claim 1.
  • Such time is normally that accorded to the program that is desired to be recorded; it is however possible to program the turning on of the appliance some time before the time accorded, so as not to risk missing the beginning of the program of interest.
  • an appropriate organ usually a key, that can be distinguished for example with "Timer”, be depressed.
  • the key activates a delay condition and the recorder is no longer available for normal use, such as reproduction or recording, or any other possible operation; it is however possible to remove the delay condition, and then carry out the desired operation , but it is necessary that the key be newly depressed, otherwise the programming will not be effective.
  • the users may be more than one, and the second may not necessarily be informed of the fact that the video recorder has been programmed to record.
  • the present invention has the aim of indicating the possibility of realising a video cassette recorder that allows the use of the applicance after a recording has been carried out, having a sufficient protection system against eventual errors.
  • the present invention proposes a video cassette recorder supplied with means for receiving a television program, means for recording the latter, a clock a data memory means for storing in said memory the time at which a program that is desired to be recorded begins and control means for reading said clock and said memory and for activating said receiving means and said means for recording the television program at the indicated time or at a pre-determined interval of time before and the programming of the recording operation can be maintained without interfering with the normal use of the recorder, characterized by the fact that means are provided for controlling, whether the recorder is used after having been programmed and by display means for displaying a warning message for the user whether such said use may have placed the recording of the program at risk.
  • reference number 13 indicates the input for the antenna signal of the receiving block input for the antenna signal of the receiving block circuit of the video cassette recorder.
  • Number 10 indicates a conventional television tuner, number 11 the customary intermediate frequency amplifier with video detector; number 12 indicates a decoding circuit of a transmitted label, associated to the television signal and containing for example a code number and the time accorded the beginning of the program, a label of this type is the beginning of the program, a label of this type is that for example provided in the system known as V.P.S. (Video Programming System).
  • V.P.S. Video Programming System
  • Number 1 indicates the whole of the receiving circuits 10, 11 and 12; number 16 indicates the demodulated video signal, outputted from circuit 11.
  • Number 2 indicates a control unit, for example a microcomputer, that manages the system; this is connected to block 12 that receives at terminal 21 the transmitted label; it is connected to a clock calendar 4, through terminal 22 and to a memory 3 through terminal 23.
  • a control unit for example a microcomputer, that manages the system
  • the memory 3 is arranged so as to receive through an interface 53 the user data relative to the program to be recorded (label 37 of the desired program, and television channel 36) or any other suitable device for introducing data.
  • the microcomputer 2 through the terminal 24, can address the memory 3; through terminal 25 it can control the beginning and the end of recording on the recorder 7; through terminal 26 it can control the tuner 10 so as to select the program chosen by the user; and, through terminal 27 and a supply device (15), is able to turn on or off the receiving part of the system.
  • the microcomputer through terminal 28 can control an alphanumeric display 6, for displaying warning messages (for example of the LED type); through terminal 29 it can control an acoustic advisor 8 (a normal buzzer) that can be manually disconnected.
  • an alphanumeric display 6 for displaying warning messages (for example of the LED type);
  • an acoustic advisor 8 a normal buzzer
  • microcomputer is connected through its bus, with a peripheral device, indicated with number 5, containing a programmable timer.
  • the actual recorder 7 receives from block 11 the video and audio signals to be recorded through conductors 16 and 72; this being preferable a recorder of the cassette type, and is supplied with a cassette sensor, not represented in the figure, that remains active even in the stand by mode of the appliance; it also comprises a signalling system of the activation of the motor for fast forwarding or rewinding the cassette; both the cassette sensor and the signalling system of the activation of the motor are connected to the microcomputer 2.
  • the microcomputer 2 may be of the type commercially available, for example a central processing unit Z8400 by S.G.S.; the peripheral device 5 may be in such a case a counter timer circuit Z8340 by the same company.
  • the Z8430 is programmable via software, it is directly interfaced with the CPU and has 4 independent counters timer of 8 bit, that can be cascaded; each counter is associated to a pre-scaler, that can be commutated via software between two division values (16/256); in this way the delay can be programmed for intervals ranging from a minimum of 4 microseconds to a maximum of approximately 74 hours; at the end of the count the Z8430 can be programmed to send interrupt request to the CPU.
  • any other suitable microprocessor can be utilised, and instead of the Z8430 a similar counter timer circuit that can be interfaced with the microprocessor used.
  • FIG 2 a part of the logic circuit of the central control unit 2 (figure 1) is schematically represented, that enables the realisation of programming a recording.
  • Such a circuit can be indifferently realised with the wired logic system or with a system of programmed logic, i.e. utilising a microprocessor; said second system is generally less expensive, as video cassette recorders generally are generally contain one or more microprocessors.
  • Block 100 is the initial block of the programming operation; control passes to the successive block 101.
  • Block 101 is a control block; it controls whether the user has proceeded with a programming request (for instance by means of a suitable key of the data introduction unit 53); in the affirmative case control passes to block 102; in the negative case control passes back to block 101 (in all the control blocks the inferior output is the YES output; the lateral output is the NO output).
  • Block 102 provides for:
  • Block 103 is the terminal block of the end of operations; control can return to the initial block 100 or another similar operative block of the control circuit.
  • FIG 3 a second part of the logic circuit of the central control unit 2 is schematically represented, that enables the realisation of the programmed recording at the foreseen time.
  • Block 200 is the initial block of the automatic recording operation; control arrives at block 200 as an effect of the "interrupt" command generated by the timer 5 upon the termination of the period of time stated by block 102; block 200 carried out the normal operations such as:
  • Block 201 is a control block; it controls whether reception, displaying, recording or reproducing activity is underway; in the affirmative case control passes to block 202; in the negative case control passes to block 204.
  • Block 203 provides for the display of a message for the user, of the type: "the programmed recording of channel X is about to begin; if not cancelled by the user by pressing key Y, it will begin within one minute”. Control is then supplied to block 203.
  • Block 203 is a control block; it controls whether the cancel command takes place within one minute, in the positive case control passes to block 209; in the negative case control passes to block 204.
  • Block 204 provides for starting the operation of programmed recording:
  • Block 205 is a control block: a control of the label contained in signal 16 is carried out, comparing it with that (37) contained in the memory 3, if the label coincides control passes to block 206; on the contrary control passes back to block 205.
  • Block 206 provides for activating the recording on behalf of the recording device 7; control then passes to block 207.
  • Block 207 is a control block that provides for controlling the received label; if the label is substituted (i.e. in the case that it does not correspond to that in the memory), i.e. the program has finished, control passes to block 208; on the contrary control returns to block 207.
  • Block 208 provides for interrupting the recording deactivating the receiving means 1 and the recorder 7; it also provides for lowering the programmed recording flag (RP); control therefore passes to block 209.
  • Block 209 carries out the operation “return from interrupt” (RETI), that is it supplies the control to the block that had control during the moment in which the "interrupt” signal had been received.
  • REFI return from interrupt
  • FIG 4 a third part of the logic circuit of the central control unit 28 is schematically represented, that allows for using the recorder, after that a recording has been programmed, without any risks.
  • Block 300 is the initial block of normal use operations; from block 300 control passes to block 301.
  • Block 301 is a control block: control of the programmed recording flag (RP) is carried out; if the flag is raised control passes to block 302; on the contrary control passes to block 302A.
  • RP programmed recording flag
  • Block 302 provides for displaying on the display 6 a message of the type "Attention a recording has been programmed!; control then passes to block 302A.
  • Block 302A provides for accepting the commands given by the user, but before carrying them out, passes control to block 303.
  • Block 303 is a control block: control as to whether the motor of the recorder 7 has been activated is carried out, signalled by said signalling system: in the affirmative e control is passed to block 305; on the contrary control passes to block 304.
  • Block 304 is a control block: control as to whether the cassette has been extracted is carried out, based on the state of the relative sensor: in the affirmative case control is passed to block 306; on the contrary control passes to block 307.
  • Block 306 provides for raising the extracted cassette flag (CE); control is then supplied to block 307.
  • Block 307 provides to execute the uses commands and passes the control to block 308.
  • Block 308 is a control block: control is carried out of the programmed recording flag (RP); if the flag is raised control is passed to 309; on the contrary control passes to block 313.
  • RP programmed recording flag
  • Block 309 is a control block: control is carried out of the extracted cassette flag (CE); if the flag is raised control passes to block 310; on the contrary control passes to block 311.
  • Block 310 provides for:
  • Block 313 is a control block: control of the activated motor flag is carried out (PL); if the flag is raised control passes to block 312; on the contrary control is passed to block 313.
  • Block 312 provides for:
  • Block 313 is the final block of end of operations; control can return to block 300 or another similar operative block of the control circuit.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Television Signal Processing For Recording (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Claims (27)

  1. Enregistreur pour cassettes vidéo, pourvus de moyens (1) pour recevoir un programme de télévision, des moyens (7) pour enregistrer ce dernier, une horloge (4), une mémoire de données (3), des moyens (53) pour stocker dans ladite mémoire (3) l'heure à laquelle commence un programme que l'on souhaite enregistrer et des moyens de commande (2) pour lire ladite horloge (4) et ladite mémoire (3) et pour actionner lesdits moyens de réception (1) et lesdits moyens pour enregistrer (7) le programme de télévision à l'heure indiquée ou dans une tranche horaire prédéterminée à l'avance et la programmation de l'opération d'enregistrement peut être conservée sans perturber l'utilisation normale de l'enregistreur, caractérisé par le fait que des moyens (301, 304, 306, 308, 309) sont prévus pour contrôler si l'enregistreur est utilisé après avoir été programmé et par des moyens d'affichage (302, 310, 6, 8) pour afficher un message d'avertissement pour l'utilisateur le prévenant que ladite utilisation peut avoir compromis l'enregistrement du programme.
  2. Enregistreur pour cassettes vidéo selon la revendication 1, caractérisé par le fait qu'il comprend des moyens de synchronisation (5) indépendants desdits moyens de commande (2) pour déterminer l'instant auquel démarre l'opération d'enregistrement.
  3. Enregistreur pour cassettes vidéo selon la revendication 2, caractérisé par le fait que lesdits moyens de synchronisation (5) comprennent une unité de compteur numérique électronique (Z8430) pouvant conserver le comptage d'un intervalle de temps d'au moins 24 heures et que l'on peut interfacer avec lesdits moyens de commande (2).
  4. Enregistreur pour cassettes vidéo selon la revendication 2, caractérisé par le fait que lesdits moyens de synchronisation (5) comprennent une unité de compteur numérique électronique (Z8430) pouvant conserver le comptage d'un intervalle de temps d'au moins 72 heures et que l'on peut interfacer avec lesdits moyens de commande (2).
  5. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait que lesdits moyens de commande (2) comprennent des moyens (102) pour :
    demander à l'utilisateur les données à insérer dans la mémoire 3 ;
    calculer l'intervalle intervenant entre le temps réel et le temps de l'actionnement prévu pour l'enregistrement ;
    programmer le dispositif (5) pour l'intervalle de temps calculé ;
    démarrer la minuterie (5).
  6. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait que lesdits moyens de commande (2) comprennent des moyens (201) pour vérifier si la réception, l'affichage, l'enregistrement ou la reproduction est en route et des moyens (203) pour afficher un message d'avertissement pour l'utilisateur (du type) "l'enregistrement programmé de la chaíne X va démarrer ; si l'utilisateur ne l'annule pas en appuyant sur la touche Y, l'enregistrement commencera comme prévu dans une minute".
  7. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait que les moyens (301) sont prévus pour contrôler si l'enregistreur est utilisé après avoir été programmé, et les moyens (302, 6) pour afficher un message d'avertissement.
  8. Enregistreur pour cassettes vidéo selon la revendication 1, caractérisé par le fait que lesdits moyens pour contrôler, si l'enregistreur est utilisé après avoir été programmé, que la cassette a été retirée, comprennent un capteur de cassette expulsée.
  9. Enregistrement pour cassettes vidéo selon la revendication 8, caractérisé par le fait que ledit capteur de cassette reste actif même en état de veille.
  10. Enregistreur pour cassettes vidéo selon la revendication 1, caractérisé par le fait que ledit avertissement comprend la visualisation d'un message sur le dispositif d'affichage (6).
  11. Enregistreur pour cassettes vidéo selon la revendication 1, caractérisé par le fait que ledit avertissement comprend un signal sonore produit par un avertisseur acoustique (8).
  12. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait que des moyens (303, 305, 308, 311) sont prévus pour contrôler, si l'enregistreur est utilisé après avoir été programmé, que la position de la cassette a été changée et des moyens (312, 6, 8) pour avertir l'utilisateur.
  13. Enregistreur pour cassettes vidéo selon la revendication 12, caractérisé par le fait que ledit capteur de changement de position de la cassette reste actif même en position de veille.
  14. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait que lesdits moyens pour contrôler, si l'enregistreur (7) est utilisé après avoir été programmé, que la position de la cassette a été changée, comprennent un système de signalisation pour permettre au moteur de se mettre en mode avance ou retour cassette.
  15. Enregistreur pour cassettes vidéo selon la revendication 12, caractérisé par le fait que ledit avertissement comprend l'affichage d'un message sur l'écran (6).
  16. Enregistreur pour cassettes vidéo selon la revendication 13, caractérisé par le fait que ledit avertissement comprend un signal sonore produit par un avertisseur acoustique (8).
  17. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il comprend des moyens de circuits (12) pour décoder une étiquette émise, associée à un signal télévisuel et contenant par exemple un numéro de code et l'heure prévue du début du programme.
  18. Enregistreur pour cassettes vidéo selon la revendication 17, caractérisé par le fait que lesdits moyens de circuits (12) pour décoder une étiquette émise, sont ceux prévus dans le système connu V.P.S. (Video Programming System) (Système de programmation vidéo).
  19. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait que lesdits moyens de commande (2) comprennent un circuit logique réalisé avec le système de logique câblée.
  20. Enregistreur pour cassettes vidéo selon l'une quelconque des revendications précédentes, caractérisé par le fait que lesdits moyens de commande (2) comprennent un circuit logique réalisé avec le système de logique programmée, c'est-à-dire en utilisant un microprocesseur (Z8400).
  21. Enregistreur pour cassettes vidéo selon la revendication 20, caractérisé par le fait que lesdits moyens de commande (2) comprennent des moyens (102) pour permettre d'interrompre les signaux.
  22. Enregistreur pour cassettes vidéo selon la revendication 20, caractérisé par le fait que ledit microprocesseur (Z8400) est également utilisé pour gérer d'autres utilisations de l'enregistreur pour cassettes vidéo.
  23. Enregistreur pour cassettes vidéo selon les revendications 3 ou 4, caractérisé par le fait que ladite unité de compteur numérique électronique (Z8430) comprend une série de compteurs programmables, reliés entre eux en cascade.
  24. Enregistreur pour cassettes vidéo selon la revendication 23, caractérisé par le fait qu'au moins un desdits compteurs programmables est associé à un diviseur préalable.
  25. Enregistreur pour cassettes vidéo selon la revendication 23, caractérisé par le fait que ledit diviseur préalable peut être commuté entre au moins deux valeurs de division.
  26. Enregistreur pour cassettes vidéo selon la revendication 20, caractérisé par le fait que ladite unité de compteur numérique électronique (Z8430) peut être programmée à la fin du comptage pour délivrer une demande d'interruption audit microprocesseur (Z8400).
  27. Enregistreur pour cassettes vidéo selon les revendications 3 ou 4, caractérisé par le fait que ladite unité de compteur numérique électronique (Z8430) peut être interfacée avec lesdits moyens de commande (2) au moyen d'un bus de données.
EP92104148A 1991-03-15 1992-03-11 Enregistreur pour cassettes vidéo Expired - Lifetime EP0507119B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO910186 1991-03-15
ITTO910186A IT1245456B (it) 1991-03-15 1991-03-15 Videoregistratore perfezionato

Publications (3)

Publication Number Publication Date
EP0507119A1 EP0507119A1 (fr) 1992-10-07
EP0507119B1 true EP0507119B1 (fr) 1998-09-02
EP0507119B2 EP0507119B2 (fr) 2005-02-09

Family

ID=11409078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92104148A Expired - Lifetime EP0507119B2 (fr) 1991-03-15 1992-03-11 Enregistreur pour cassettes vidéo

Country Status (4)

Country Link
EP (1) EP0507119B2 (fr)
DE (1) DE69226800T3 (fr)
ES (1) ES2120967T5 (fr)
IT (1) IT1245456B (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649445C2 (de) * 1976-10-29 1982-09-09 Deutsche Itt Industries Gmbh, 7800 Freiburg Fernsehempfänger mit einem eingebauten Zeitgeber
JPS5951054B2 (ja) * 1977-08-25 1984-12-12 ソニー株式会社 記録再生装置
JPS5626286A (en) * 1979-08-10 1981-03-13 Hitachi Ltd Program timer
DE3243610A1 (de) * 1982-11-25 1984-05-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur programmierbaren steuerung einer rundfunk- und/oder fernseh-empfangseinrichtung
GB8816953D0 (en) * 1988-07-15 1988-08-17 Ferguson Ltd Video recorder

Also Published As

Publication number Publication date
ES2120967T5 (es) 2005-07-01
IT1245456B (it) 1994-09-20
ES2120967T3 (es) 1998-11-16
ITTO910186A1 (it) 1992-09-15
EP0507119A1 (fr) 1992-10-07
DE69226800T3 (de) 2005-11-17
DE69226800T2 (de) 1999-05-06
ITTO910186A0 (it) 1991-03-15
DE69226800D1 (de) 1998-10-08
EP0507119B2 (fr) 2005-02-09

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