EP0235209A1 - Appareil de reproduction video et du son - Google Patents

Appareil de reproduction video et du son

Info

Publication number
EP0235209A1
EP0235209A1 EP19860905177 EP86905177A EP0235209A1 EP 0235209 A1 EP0235209 A1 EP 0235209A1 EP 19860905177 EP19860905177 EP 19860905177 EP 86905177 A EP86905177 A EP 86905177A EP 0235209 A1 EP0235209 A1 EP 0235209A1
Authority
EP
European Patent Office
Prior art keywords
video
sound
reproduction
sign
parallel
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Withdrawn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
EP19860905177
Other languages
German (de)
English (en)
Inventor
Nelson Martins Costa Filho
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 EP0235209A1 publication Critical patent/EP0235209A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
    • G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems

Definitions

  • the present invention refers to an apparatus for reproduction of sound and video developed mainly to be utilized as an auxiliary instrument in education, which due to the fact that it presents a low cost, in production as well as in its maintenance, it renders possible the utilization of the effects provenient from the video reproduction by users of lower purchasing power.
  • the developed apparatus is versatile, being also able to be utilized for leisure purposes.
  • the apparatus which are commonly utilized in the reproduction of sound and video are video cassettes and computers.
  • the video cassette is an efficient apparatus to tape and reproduce sounds and video in magnetic tapes, which utilizes the UMATIC or BETAMAX process, having as main characteristic rotative, heads that tape helicoidally and with this, they can reach a high relative speed head/tape, which, added to the small "gap", results in a good number of answers of high frequency up to 4.2 mHz, approximately.
  • this apparatus attends all the demands requested by the user; however, it utilizes a system of high initial cost and maintenance, for the tapes are expensive. Using it in education would attend only a small part of the population, for it is unsti ulating for the majority of the population, who mostly need the aid of the generated and developed technology.
  • the computer which is the other apparatus, tapes and reproduces programs in disk or in magnetic tapes, which, after being entered and processed, enables their vision in monitors or television sets.
  • the produced sounds are of the digit type, produced artificially in intonations that are sometimes unintelligible.
  • the apparatus of the present invention With the aim to attend mainly the primary demand of low cost, the apparatus of the present invention was developed, which enables the maximum utilization of the apparatus that normally exist in the residencies of the users to be benefited, such as a television set, even in black and white, a tape recorder/reproductive sound cassette and also, the tape cassette, which has a quite inferior cost as compared to the cost of the video cassette tapes.
  • the apparatus for reproduction of video and sound, object of the invention presents today a cost of approximately 5% of the cost of the video cassette, providing a good resolution and attending easily all the other requirements necessary for its utilization.
  • the developed apparatus will further provide, as consequence, a lot of other advantages, the main ones being the following:
  • - Language schools may adopt the developed apparatus making read good use of the audio and visual resources, for, besides the demonstrative figures on TV, the student may listen to the teacher's pronunciation perfectly and may also be enriched with music in the language which is being taught.
  • entertainments may be provided such as cartoons, cross-word puzzles and others. If adapted to controls, keyboards or joysticks.
  • the apparatus becomes so powerful that no video game, no matter how. owerful it is, will be compared to it, specially due to the fact that the tape cassette is much cheaper than the cartouche of commercialized video games.
  • the Processing Unit (1) responsible for the interpretation of the codes coming from the main generating source "A” and optional source “B", which after the right processings pass to the responsible circuit by the serial output (2) .
  • the generating sources "A” and “B” are composed of a tape recorder, tape deck, cassette-tape reproducer, micro-tape reproducer, cartridge tape reproducer, tape reproducer of the cartouche type, that is, endless tapes, record player for the case where programs are taped on common record instead of tape, etc.
  • the input may be of the kind of data in parallel and may optionally make use of the connecting blocks (3) and filters (4) .
  • the signs previously taped, using a digital code, such as ASCII or any other are injected through input "A" and following that, through the first connecting block (5) , which is responsible for the connection to the several possible sources, and automatically controls the input level to compensate the volume variation between equipments.
  • the filters (6) receive these signs and make the due filtering processes, and after that, separate the analogous sounds, which, due to their characteristics, do not get mixed. If the sign comes from parallel sources, making use of multiple tracks, the process will be the same; however, with input through optional connecting blocks (3) and filters (4) .
  • the sound (7) goes to the amplifier block and impedance matching (8) where the right amplification and impedance matching are made in order to be posteriorly sent to the converter block of radio frequency
  • the radio-frequency converter (9) after mixing the sound sign (7) with the video sign (11) , will pass the resultant sign to the terminals of the television antenna that must be used in an empty channel frequency.
  • the data received by the series/parallel converter (12) coming from filter (6) are transformed in parallel data and passed to via of data (13) and in case of using input "B", these data will be passed by filter (4) .
  • the CPU Central Processing Unit
  • the CPU makes the recognition of the information and after interpreting it, executes it, making use of the information in the program memories (only reading memory) (14) , video memory (18) , memory of characters (only reading memory) (15) , which can be numbers, graphs, etc.
  • this memory as in (16) , being even able to be exchangeable, having with it tapes of pre-determined symbols as pattern for use in certain areas, such as in electronics, civil engineering, chemistry, mathematics, etc.
  • Another alternative that may also be utilized in a "Y" or "Z” type model, for example, would be to use another optional memory of the written and reading type (17) instead of just that of the reading type (16) .
  • these memories would be carried previously, when on the occasion of the beginning of the reading of the magnetic tape by the system, while music will be heard. Following that, after these few seconds or minutes, the classes or normal programs would continue. This version of the system would be more useful to those students who have more than one class and who need several patterns.
  • the CPU Central Processing Unit (1) , after the reading of the information and the respective processings commanded by the data coming from the program memory (14) , complemented by those of the magnetic tape, takes them to the parallel/serial converter (2) that, after making the conversion, takes them to the converter block (10) or to the radio frequency converter (9) already described.
  • optional memory of writing and reading when not utilized for educational patterns, may be utilized to mark scores or other functions such as players' names, etc., when used in entertainments.
  • the diagram of blocks of the system is what has been described above, and it is evident that this one disposes of other essential elements, such as feeding source, CLOCK generators, etc.; however, for a perfect comprehension of the invention, their representations are not made necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electrically Operated Instructional Devices (AREA)

Abstract

L'appareil ci-décrit, mis au point spécialement pour les besoins de l'enseignement, permet, en raison de son faible coût de production et de maintenance, aux utilisateurs à faible pouvoir d'achat de mettre à profit les effets de la reproduction vidéo. L'appareil mis au point comprend essentiellement une unité centrale (1) chargée de l'interprétation des codes provenant des sources de production ''A'' et ''B'', et qui après les traitements appropriés, transmet lesdits codes au circuit chargé de la sortie séquentielle (2).
EP19860905177 1985-08-30 1986-08-22 Appareil de reproduction video et du son Withdrawn EP0235209A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR8504209 1985-08-30
BR8504209A BR8504209A (pt) 1985-08-30 1985-08-30 Aparelho para reproducao de video e som

Publications (1)

Publication Number Publication Date
EP0235209A1 true EP0235209A1 (fr) 1987-09-09

Family

ID=4038492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860905177 Withdrawn EP0235209A1 (fr) 1985-08-30 1986-08-22 Appareil de reproduction video et du son

Country Status (4)

Country Link
EP (1) EP0235209A1 (fr)
JP (1) JPS63500749A (fr)
BR (1) BR8504209A (fr)
WO (1) WO1987001492A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120072A (en) * 1979-03-09 1980-09-16 Sharp Kk Image signal processor
JPS5746279A (en) * 1980-09-05 1982-03-16 Sony Corp Learning system using vtr

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8701492A1 *

Also Published As

Publication number Publication date
WO1987001492A1 (fr) 1987-03-12
BR8504209A (pt) 1987-04-07
JPS63500749A (ja) 1988-03-17

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Legal Events

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