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EP0575895B1 - Arrangement de haut-parleurs pour téléspectateurs - Google Patents

Arrangement de haut-parleurs pour téléspectateurs Download PDF

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Publication number
EP0575895B1
EP0575895B1 EP93109731A EP93109731A EP0575895B1 EP 0575895 B1 EP0575895 B1 EP 0575895B1 EP 93109731 A EP93109731 A EP 93109731A EP 93109731 A EP93109731 A EP 93109731A EP 0575895 B1 EP0575895 B1 EP 0575895B1
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
loudspeakers
bevelled
picture tube
front panel
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
EP93109731A
Other languages
German (de)
English (en)
Other versions
EP0575895A1 (fr
Inventor
Hermann Gruber
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.)
Nokia Technology GmbH
Original Assignee
Nokia Technology GmbH
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 Nokia Technology GmbH filed Critical Nokia Technology GmbH
Publication of EP0575895A1 publication Critical patent/EP0575895A1/fr
Application granted granted Critical
Publication of EP0575895B1 publication Critical patent/EP0575895B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Definitions

  • the invention is concerned with the arrangement of loudspeakers in television sets.
  • the loudspeakers In order to reproduce sound signals in television sets using loudspeakers, it is common in the prior art to arrange the loudspeakers in the front panel, in the side walls and also in the rear front of the housing. However, in order to achieve good sound reproduction by means of these loudspeakers, it is also known to align the radiation axis of the loudspeakers parallel to the axis of the picture tube, because the loudspeakers used in the side walls or in the rear wall of the housing can have cabinet properties surrounding them, for example, due to the television set be diminished. So that good transmission quality is guaranteed even with loudspeakers used in the front panel, the loudspeakers used there must have a minimum diameter in order to generate adequate sound pressure.
  • the circumferential front panel of the housing has an outer edge, the plane of which at least in some areas makes an angle ⁇ of 135 ° ⁇ 20 ° to the plane of the front panel, and in the region of the outer edge, which is bevelled in relation to the front panel, at least one opening is inserted into which one of the loudspeakers is inserted.
  • a particularly good stereo transmission behavior is achieved if, according to claim 2, the chamfered areas of the outer edge are formed on the sides of the front panel which surround the short sides of the picture tube.
  • a good spatial radiation of the loudspeakers inserted into the openings of the beveled areas is given if - according to claim 3 - the loudspeaker basket and the magnet system attached to it are formed on the sides of the beveled areas which face away from the picture tube.
  • the narrow and uniform overall impression of the front panel is retained if - how specified in claim 4 - the speaker covers used are adapted to the contour that the transition between the front panel and the side wall otherwise, that is, in the absence of beveled areas.
  • the sound quality of the loudspeaker arrangement can be further increased because of the different radiation axes of the loudspeakers.
  • FIG. 1 illustrates a partial illustration of a housing 10 for a television set.
  • a picture tube 11 is inserted into the housing 10.
  • the picture tube 11 is of a revolving Front panel 12, which forms part of the housing 10, edged on the side of the picture tube 11 facing the viewer.
  • the side wall 13 adjoins the upstanding part of the front panel 12.
  • the plane of the upstanding part of the front panel 12 and the plane of the side wall 13 essentially form an angle of 90 °.
  • the transition from the front panel 12 to the side wall 13 can also be rounded.
  • the round loudspeaker 14 is inserted into an opening 15 of a beveled area 16.
  • This beveled area 16 is formed in that a piece of the length of the upstanding part of the front panel 12 does not form a right angle with the side wall 13. Rather, the outer edge 17 of the front panel 12 is angled to the rear, that is to the rear wall 18 of the housing 10, to form the beveled area 16.
  • the plane of the front panel 12 and the plane of the beveled area 16 enclose an angle ⁇ of 135 °.
  • the loudspeaker 14 with its loudspeaker basket 19 and the magnet system 20 attached to it expands on the side of the beveled area 16 which faces the picture tube 11.
  • This way of installing the loudspeaker 14 is shown in more detail in the right half of FIG.
  • the loudspeaker diameter can be increased considerably compared to a direct installation from the front.
  • Fig. 2 (right side) can due to Angle ⁇ of 135 ° in the beveled area 16 of the speaker diameter can be increased by 30% compared to a direct installation in the front panel 12.
  • the diameter d ' which indicates the position of the loudspeaker 14 with a direct installation from the front, shows how much wider the front panel 12 would have to be designed to accommodate this loudspeaker 14.
  • FIG. 2 shows an embodiment in which the loudspeaker 14 with its loudspeaker basket 19 and the magnet system 20 attached to it is attached to the side of the beveled area 16 facing away from the picture tube 11.
  • the beveled areas 16 shown in FIGS. 1 and 2 are each covered by a loudspeaker grill 21.
  • the rectangular configuration of the loudspeaker grilles 21 shown in FIG. 2 ensures that the overall optical appearance of the housing 10 is retained as a result of this shape.
  • the area of the front panel 12 adjacent to the short side of the picture tube 11 is provided with three loudspeakers 14.1-3. Two of these loudspeakers, 14.1 and 14.2, are arranged in beveled areas 16.1 and 16.2. The angular dimensions which the planes of the bevelled areas 16.1 and 16.2 assume with respect to the plane of the front panel 12 are of different sizes.
  • the third, very small loudspeaker 14.3 is inserted directly into the front panel 12, so that its radiation axis 22nd occupies a right angle to the plane of the front panel 12.
  • the mutually different radiation axes of the loudspeakers 14.1-3 ensure that good coverage of the area in front of the picture tube 11 is achieved.
  • the illustration of the loudspeaker grills 21 has been omitted in FIG. 3.
  • beveled areas 16 is not limited to only those sides of the front panel 12 which are adjacent to the short side of the picture tube 11.
  • the loudspeakers 14.4 used in beveled areas 16.4 can also be formed in the sides of the front panel 12 which are adjacent to the long side of the picture tube 11.
  • the last-mentioned measure further improves the sound in the area upstream of the picture tube 11.
  • all the loudspeakers 14 required for sound reproduction can also be arranged in the sides of the front panel 12, which are adjacent to the long side of the picture tube 11.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Claims (5)

  1. Agencement de haut-parleurs pour téléviseurs comprenant plusieurs haut-parleurs insérés dans le boîtier (10), I'écran du tube image (11) étant bordé par un cadre frontal (12) du boîtier (10), qui en fait le tour, et le cadre frontal (12) et l'écran du tube image (11) s'étendant pour l'essentiel dans un plan, agencement dans lequel le cadre frontal (12) circulaire du boîtier (10) présente un bord extérieur (17) dont le plan forme, au moins par endroits, un angle α de 135° ± 20° avec le plan du cadre frontal (12) et dans lequel dans la zone (16) du bord extérieur (17) qui est inclinée par rapport au cadre frontal (12), il est ménagé au moins une ouverture (15) dans laquelle est inséré l'un des haut-parleurs (14).
  2. Agencement de haut-parleurs pour téléviseurs selon la revendication 1,
    caractérisé par le fait
    que les zones (16), inclinées par rapport au cadre frontal (12), du bord extérieur (17) sont réalisées sur les côtés du cadre frontal (12) qui entourent les côtés courts du tube image (11).
  3. Agencement de haut-parleurs pour téléviseurs selon la revendication 1,
    caractérisé par le fait
    que les haut-parleurs (14) qui sont insérés dans les ouvertures (15), s'étendent avec le saladier de haut-parleur (19) et le système magnétique (20) fixé sur ce dernier, sur le côté de la zone (16) inclinée qui est tournée à l'opposé du tube image (11).
  4. Agencement de haut-parleurs pour téléviseurs selon la revendication 1,
    caractérisé par le fait
    qu'au moins les haut-parleurs (14) disposés dans les zones (16) inclinées sont recouverts par des grilles (21) dont la forme est adaptée au profil que possède sinon, c'est-à-dire en l'absence de zones (16) inclinées, la transition entre le cadre frontal (12) et la paroi latérale (13).
  5. Agencement de haut-parleurs pour téléviseurs selon la revendication 1,
    caractérisé par le fait
    que l'angle d'une zone (16.1) inclinée diffère de l'angle d'une autre zone (16.2) inclinée disposée sur le même côté du cadre frontal (12).
EP93109731A 1992-06-24 1993-06-18 Arrangement de haut-parleurs pour téléspectateurs Expired - Lifetime EP0575895B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4220637A DE4220637A1 (de) 1992-06-24 1992-06-24 Lautsprecheranordnung für Fernsehgeräte
DE4220637 1992-06-24

Publications (2)

Publication Number Publication Date
EP0575895A1 EP0575895A1 (fr) 1993-12-29
EP0575895B1 true EP0575895B1 (fr) 1995-10-25

Family

ID=6461700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93109731A Expired - Lifetime EP0575895B1 (fr) 1992-06-24 1993-06-18 Arrangement de haut-parleurs pour téléspectateurs

Country Status (3)

Country Link
EP (1) EP0575895B1 (fr)
DE (2) DE4220637A1 (fr)
ES (1) ES2081663T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100383469B1 (ko) * 1994-08-02 2003-07-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 확성기유닛및확성기유닛이제공된장치
JP3388111B2 (ja) 1996-10-24 2003-03-17 富士通株式会社 スピーカを有する情報処理装置
DE19806509B4 (de) * 1998-02-17 2007-12-13 Harman Becker Automotive Systems Gmbh Gerät zur Informationswiedergabe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT225765B (de) * 1961-04-28 1963-02-11 Akg Akustische Kino Geraete Lautsprecheranordnung für Fernsehgeräte
DE2806580A1 (de) * 1978-02-16 1979-11-29 Gorenje Koerting Fernsehempfangsgeraet mit integriertem stereo-rundfunk-empfangsteil mit variabler lautsprecher-beschaltung, bzw. lautsprecher-aufstellung
DE3607987A1 (de) * 1986-03-11 1987-09-17 Loewe Opta Gmbh Fernsehempfangsgeraet
DE3738698A1 (de) * 1987-11-14 1989-05-24 Electronic Werke Deutschland Fernsehempfaenger mit einer lautsprecherbox
FR2631195B1 (fr) * 1988-05-06 1990-07-27 Loire Electronique Installation sonore, en particulier stereophonique pour televiseurs a haut-parleur integre de frequences basses de grandes dimensions
FR2635629B1 (fr) * 1988-08-16 1996-04-19 Loire Electronique Installation sonore, en particulier stereophonique, pour televiseur
US5229555A (en) * 1990-03-30 1993-07-20 Matsushita Electric Industrial Co., Ltd. Speaker system and tv with the same
EP0462571B1 (fr) * 1990-06-21 1996-10-30 Matsushita Electric Industrial Co., Ltd. Arrangement de haut-parleurs dans le coffret d'un téléviseur
JP3104073B2 (ja) * 1990-12-22 2000-10-30 ソニー株式会社 テレビジョン受像機のスピーカ装置

Also Published As

Publication number Publication date
DE4220637A1 (de) 1994-01-05
ES2081663T3 (es) 1996-03-16
EP0575895A1 (fr) 1993-12-29
DE59300808D1 (de) 1995-11-30

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