EP3614691A1 - Method and apparatus for outputting sound through speaker - Google Patents

Method and apparatus for outputting sound through speaker Download PDF

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Publication number
EP3614691A1
EP3614691A1 EP19201658.2A EP19201658A EP3614691A1 EP 3614691 A1 EP3614691 A1 EP 3614691A1 EP 19201658 A EP19201658 A EP 19201658A EP 3614691 A1 EP3614691 A1 EP 3614691A1
Authority
EP
European Patent Office
Prior art keywords
speaker
sound
display
output
speakers
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.)
Ceased
Application number
EP19201658.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jong-Bae Kim
Dae-Joung Kim
Dong-Kyu Park
Sung-ha SON
Gyeong-Tae Lee
Joo-Yeon Lee
Jong-In Jo
Sung-Joo Kim
Dong-Hyun Jung
Seon-Ho Hwang
Dae-Kyung Ahn
Sang-Sung Woo
Sang-Min Hyun
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority claimed from PCT/KR2014/010058 external-priority patent/WO2015060678A1/en
Publication of EP3614691A1 publication Critical patent/EP3614691A1/en
Ceased 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • H04S7/303—Tracking of listener position or orientation

Definitions

  • Apparatuses and methods consistent with exemplary embodiments relate to a method and apparatus for outputting sound through a speaker.
  • audio devices included in the flat panel displays should have a structure that is appropriate for slim electronic devices.
  • audio devices are recently including a down-firing front speaker and a back-firing woofer that may be installed in a thin digital TV.
  • the down-firing front speaker is installed at a lower bezel of the digital TV so that it can emit middle-pitched sound or high-pitched sound downward.
  • the back-firing woofer is installed on a rear surface of a digital TV so that it can emit low-pitched sound backward.
  • the low-pitched sound that is emitted backwards diffracts to a front surface of the digital TV.
  • the quality of sound is increasingly becoming degraded.
  • middle-pitched sound and high-pitched sound have high directivity, a sweet spot thereof is narrowly formed. Accordingly, there is a need to develop a method of outputting middle-pitched sound and high-pitched sound to have a wider sweet spot.
  • Exemplary embodiments overcome the above disadvantages and other disadvantages not described above. Also, an exemplary embodiment is not required to overcome the disadvantages described above, and an exemplary embodiment may not overcome any of the problems described above.
  • a high-pitched sound signal may be output on an upper layer of a display through a speaker to form a wide sweet spot.
  • 3D sound representing high-pitched sound or a forward/backward sound source may be output through a plurality of speakers.
  • One or more exemplary embodiments provide a method and apparatus for outputting sound through a speaker, and more particularly, a method of outputting middle and high-pitched sounds that have a high directivity through a speaker in order to form a wider and expanded sweet spot.
  • the sweet spot may be used to describe the focal point between two speakers, where an individual is fully capable of hearing the stereo audio mix the way it was intended to be heard by the mixer, but is not limited thereto.
  • an apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit.
  • Each slit may have a thickness that is less than the wavelength of sound emitted.
  • the first and second speakers may output sound of different channels, respectively, according to each location of the first and second speakers.
  • the apparatus may further include a sensor configured to sense a position of a user.
  • the first and second speaker may output sound by being moved according to the sensed position of the user, or the apparatus may output sound via a slit that is adjacent to the sensed position of the user.
  • the apparatus may further include a display configured to display an image.
  • the first and second speakers may be configured to output sound related to the displayed image.
  • the apparatus may further include a flat panel speaker configured to output sound at a location on the image displayed on the display at which the sound is generated using bending waves.
  • the flat panel speaker may be configured to output a haptic effect using the bending waves.
  • the apparatus may further include at least two plates that are configured to slide in a vertical direction.
  • the first speaker may be located at an upper portion of a slit between the plates that slide in the vertical direction, and the second speaker may be located at a lower portion of the slit between the plates that slide in the vertical direction.
  • the apparatus may further include a flat panel speaker configured to output the higher-frequency sound using bending waves.
  • the first or second speaker may be configured to output the lower-frequency sound.
  • the first and second speakers may be located along a horizontal direction or a vertical direction with respect to an upper and lower portion of the speaker apparatus, according to a size or shape of the display.
  • the first and second speakers may be located along a vertical direction with respect to an upper and lower ends of the apparatus, and the display may be a curved display.
  • the first and second speakers may be arranged in at least two directions to maximize a distance between the first and second speakers, according to a size or shape of the display.
  • a method of outputting sound via a speaker including determining whether a first speaker and a second speaker which each output sound via at least one slit are disposed on the same plane; obtaining forward sound or backward sound from a sound signal to be output in response to the first speaker and the second speaker being disposed on the same plane; and outputting the forward sound or the backward sound through the first speaker and the second speaker.
  • the first speaker outputs higher-frequency sound from among sound of a channel via at least one slit
  • the second speaker outputs lower-frequency sound from among the sound of the channel via at least one other slit.
  • the method may further include outputting the higher-frequency sound from among high-pitched sound via an upper speaker in response to the first speaker and the second speaker being disposed on different horizontal planes; and outputting the lower-frequency sound from among the high-pitched sound via a lower speaker from among the first and second speakers.
  • FIG. 1 is a diagram illustrating an example of a speaker apparatus according to an exemplary embodiment.
  • the speaker apparatus includes a first speaker 1 and a second speaker 2.
  • the first speaker 1 and the second speaker 2 output sound according to a sound signal that is received from the outside, and may be slit-firing speaker systems which emit sound via a plurality of slits.
  • a plurality of slits may be formed in a side surface of each of the first speaker 1 and the second speaker 2 to emit sound.
  • the plurality of slits may be designed to each have a thickness that is less than the wavelength of sound emitted therefrom so that they may act as the origin from which the sound is emitted.
  • the thickness of each of the plurality of slits may be less than or equal to 1/4 of 17 mms which is the wavelength of a threshold audible frequency.
  • the thicknesses of the first speaker 1 and the second speaker 2 may be designed to be sufficiently thin to reduce or prevent a degree to which the emitted sound is reflected at a side surface of the first speaker 1 or the second speaker 2.
  • the first speaker 1 and the second speaker 2 may have a thickness of 20 mm or less.
  • the plurality of slits may satisfy a ground plane radiation condition.
  • the first speaker 1 and the second speaker 2 may satisfy the ground plane radiation condition such that sound may be emitted upward from the wall surface or the bottom surface at a solid angle of 2 ⁇ .
  • the wall surface may be the ground because the first speaker 1 may emit sound in a forward direction from the wall surface
  • the bottom surface may be the ground because the second speaker 2 may emit sound upward from the bottom surface. Because the first speaker 1 and the second speaker 2 perform ground plane radiation, the output sound may be prevented from being reflected backward, thereby securing the quality of sound equivalent to that of sound emitted from a front-firing speaker.
  • an acoustic axis thereof may be formed in an upward direction or a forward direction and an optimum sweet spot or sound area may be formed on a central or front surface in terms of vertical directivity.
  • a wide sweet spot may be formed in a forward direction because the ground plane radiation condition is satisfied in terms of horizontal directivity.
  • the sweet spot should be understood as a sound zone, a sound area, and the like.
  • the first speaker 1 and the second speaker 2 may be vertically spaced apart from each other by a predetermined distance and are thus capable of outputting sound of different channels.
  • the first speaker 1 may output sound having directivity and an elevation effect and the second speaker 2 may output sound having no elevation effect.
  • sound that has the elevation effect may cause a listener to experience a sense of localization and stereo imaging referred to as high-pitched sound.
  • the high-pitched sound may be included in a high-altitude channel to be signaled.
  • Directivity refers to a form in which sound spreads from a sound source. High-directivity sound may not spread and may be straightly propagated in one direction. Thus, a sweet spot for high-directivity sound is generally narrow.
  • a speaker has a thickness that is less than the wavelength of sound emitted therefrom and a sweet spot may be formed in front of the display to be as wide as the sound emitted from the origin.
  • a wide sweet spot may be formed.
  • sound of a high-directivity frequency domain among high-pitched sound may be output from the first speaker 1 that is an upper speaker.
  • a listener may sense an elevation effect.
  • sound of a low-directional frequency domain among the high-pitched sound that has low directivity and the degree of localization or stereo imaging that a listener may sense may be low, although the sound is emitted from the upper speaker.
  • the sound of the low-directional frequency domain may be output from the second speaker 2 which is a lower speaker.
  • the first speaker 1 that is an upper speaker may form an upper layer for outputting high-pitched sound of high frequency
  • the second speaker 2 that is a lower speaker may form a lower layer for outputting sound of a horizontal-plane channel or high-pitched sound of low frequency.
  • the upper layer and the lower layer are referred to as sweet spots that may be formed by the first and second speakers 1 and 2, respectively.
  • the high-altitude channel is a channel for outputting a sound signal via a speaker that is in front of and/or above a listener's head so that the listener may sense elevation.
  • the horizontal-plane channel may be understood as a channel for outputting a sound signal via a speaker located on a plane that is level with the listener. Sound that is not high-pitched may be included in the horizontal-plane channel but is not limited thereto and may be sound output below the plane.
  • High-pitched sound may be output from the upper layer and may be reflected from a ceiling and then directed to a listener.
  • a listener of sound output from the speakers 1 and 2 may get a sense of elevation, localization, stereo imaging, and the like.
  • FIG. 1 illustrates only the first and second speakers 1 and 2 that form the upper and lower layers, respectively
  • exemplary embodiments are not limited thereto and the speaker apparatus may include speakers that form an upper layer and a lower layer at both sides thereof, respectively.
  • a left speaker may output sound of a left channel
  • a right speaker may output sound of a right channel.
  • exemplary embodiments are not limited to two speakers and the speaker apparatus may include more than two speakers.
  • Methods and apparatuses for outputting sound through a speaker that has a thickness that is less than the wavelength of sound emitted therefrom are designed so that a sweet spot may be formed in front thereof to be as wide as the sound emitted from the origin of the display according to exemplary embodiments are described below.
  • FIGS. 2 and 3 are block diagrams illustrating the speaker apparatuses according to exemplary embodiments.
  • speaker apparatus 200 includes a first speaker 210 and a second speaker 220. However, all of these components of the speaker apparatus 200 are not dispensable components. For example, the speaker apparatus 200 may further include other components or may not include one or more of the components illustrated in FIG. 2 .
  • the first speaker 210 may output high-frequency sound of high directivity from among high-pitched sound via at least one slit.
  • High-directivity sound has a property of moving straight and can create a narrow sweet spot. However, when sound is output through the first speaker 210, a wide sweet spot may be formed for even high-directivity sound.
  • high-pitched sound output through an upper layer of the first speaker 210 may be directed to a listener at an overhead position.
  • the high-pitched sound may be distinguishable from sound output through a lower layer and the listener may experience a stereoscopic effect, a sense of localization, stereo imaging, and the like.
  • the second speaker 220 may output low-frequency sound that has a low directivity from among the high-pitched sound or other sound except for the high-pitched sound, via at least one slit.
  • the first speaker 210 and the second speaker 220 are not limited to forming upper and lower layers to output sound downward and upward and may output sound in various other directions.
  • the first speaker 210 and the second speaker 220 may be arranged in left and right directions or front and rear directions and output sound such that a listener may experience stereoscopic sound.
  • the speaker apparatuses 200 illustrated in FIGS. 2 and 3 include the first speaker 210 and the second speaker 220, the speaker apparatuses 200 are not limited to two speakers and may include more than two speakers to output sound that has different directionalities.
  • speaker apparatus 200 includes a first speaker 210, a second speaker 220, a controller 230, and a sensor 240.
  • the first speaker 210 and the second speaker 220 of FIG. 3 correspond to the first speaker 210 and the second speaker 220 of FIG. 2 and thus will not be redundantly described.
  • the speaker apparatus 200 may further include other components or may not include one or more of the components illustrated in FIG. 3 .
  • the controller 230 may control the overall operations of the speaker apparatus 200.
  • the controller 230 may control a sound signal that is received from an outside source or a sound signal stored in a memory (not shown) of the speaker apparatus 200 to be output via the first or second speaker 210 or 220.
  • the controller 230 may control the speaker apparatus 200 under control of a user based on a control signal received from the outside source.
  • the sensor 240 may sense a position of the speaker apparatus 200, a position of a user, and the like, and generate a sensing signal for controlling an operation of the speaker apparatus 200.
  • the controller 230 may control the speaker apparatus 200 according to the sensing signal generated by the sensor 240.
  • the sensor 240 may include at least one of a gyrosensor, an infrared sensor, and the like.
  • the gyrosensor is capable of sensing rotational inertia and may measure angular velocity based on the motion of the speaker apparatus 200. According to an exemplary embodiment, the gyrosensor may determine whether the speaker apparatus 200 is disposed on a horizontal plane or a vertical plane.
  • the speaker apparatus 200 may control the sound signal to be output via the first or second speaker 210 or 220 according to a result of the determining. An example of a method of outputting sound through the speaker apparatus 200 according to the sensed position is described with reference to FIG. 8 .
  • the infrared sensor is capable of sensing a human body or an animal by sensing infrared rays emitted from the human body or the animal.
  • the speaker apparatus 200 may sense a listener using the infrared sensor and control the speaker apparatus 200 according to the position of the sensed listener. An example of a method of outputting sound from the speaker apparatus 200 according to the position of the listener is described with reference to FIG. 9 .
  • FIGS. 4 and 5 are block diagrams illustrating terminal apparatuses including a speaker according to exemplary embodiments.
  • Terminal apparatuses 400 illustrated in FIGS. 4 and 5 may include various types of devices.
  • the terminal apparatus 400 may include a personal computer (PC), a notebook computer, a mobile phone, a tablet PC, a navigation terminal, a smartphone, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital broadcasting receiver, a tablet, an appliance, and the like.
  • PC personal computer
  • PDA personal digital assistant
  • PMP portable multimedia player
  • digital broadcasting receiver a tablet, an appliance, and the like.
  • the types of devices are just examples and may be understood as including all devices that have been developed and placed on the market or that will be developed in the future.
  • the terminal apparatus 400 includes a display 410, the speaker 420, and a controller 430.
  • a first speaker 421 and a second speaker 422 of FIG. 4 correspond to the first speaker 210 and the second speaker 220 of FIG. 2 or 3 .
  • the components of the terminal apparatus 400 illustrated in FIG. 4 are not indispensable components.
  • the terminal apparatus 400 may further include other components or may not include one or more of the components of the terminal apparatus 400 illustrated in FIG. 4 .
  • the display 410 may display information or an image processed by the terminal apparatus 400.
  • the display 410 may display a user interface (Ul) or a graphical user interface (GUI) that is related to usage information of the terminal apparatus 400 of a user.
  • the display 410 may display an image or a Ul, and sound corresponding to the displayed image or UI may be output through the speaker 420.
  • the display 410 may include at least one of a liquid crystal display (LCD), a thin-film transistor (TFT)-LCD, an organic light-emitting diode (OLED), a flexible display, and a three-dimensional (3D) display. Also, two or more displays 410 may be installed in the terminal apparatus 400.
  • LCD liquid crystal display
  • TFT thin-film transistor
  • OLED organic light-emitting diode
  • flexible display a three-dimensional (3D) display.
  • 3D three-dimensional
  • the speaker 420 may output sound according to a control signal of the controller 430.
  • the speaker 420 may output sound corresponding to the image or the UI that is being displayed on the display 410.
  • the speaker 420 may output high-directivity sound in a wide sweet spot.
  • a listener may experience stereoscopic sound in a wide sweet spot using the speaker 420.
  • the controller 430 may control the overall operations of the terminal apparatus 400.
  • the controller 430 may control the display 410 to display an image or control the speaker 420 to output sound corresponding to an image that is being displayed on the display 410.
  • the controller 430 may determine a speaker from the speaker 420 for outputting sound based on whether the sound that is to be output is high-pitched sound or high-directivity sound, and control the speaker 420 to output the sound. Also, the controller 420 may control a speaker (e.g., the speaker 420) corresponding to a channel of a sound signal to output sound. For example, sound may be output through each speaker corresponding to each channel, for example, a central channel, a front channel, a rear channel, a left channel, a right channel, a high-altitude channel, and the like.
  • the terminal apparatus 400 includes a display 410, a speaker 420, a controller 430, and a flat panel speaker 440.
  • the display 410, the speaker 420, the first speaker 421, the second speaker 422, and the controller 430 of FIG. 5 correspond to the display 410, the speaker 420, the first speaker 421, the second speaker 422, and the controller 430 of FIG. 4 and thus will not be redundantly described here.
  • the flat panel speaker 440 is a thin panel type speaker.
  • the flat panel speaker 440 may be installed in the display 410 (such as an LCD, an organic electroluminescent (EL) display, a PDP, or the like) through which a user may visually check information, thereby saving a speaker installation space.
  • the flat panel speaker 440 may be attached onto the display 410 and may vibrate under control of the controller 430 to output sound at a predetermined location on the display 410.
  • the flat panel speaker 440 may generate sound by generating a bending wave.
  • the flat panel speaker 440 is an example of a flat-panel sound output device.
  • 'flat panel' is a relative term and may not refer to a perfect flat surface.
  • the flat panel speaker 440 may include a vibration panel and a vibration unit.
  • the vibration panel may be a flat plate that is mounted on the display 410, and may include an acryl, glass, a plastic plate, and the like, which is generally used to protect the display 410.
  • An exciter of the vibration unit of the flat panel speaker 440 is attached to a side of the vibration panel, and delivers vibration to vibrate the vibration panel according to a control signal of the controller 430.
  • a device that may be used as the vibration unit of the flat panel speaker 440 is, however, not limited to the exciter, and may be any of various types of devices capable of vibrating the vibration panel.
  • Examples of a speaker apparatus or a terminal apparatus according to various embodiments that have a thickness less than the wavelength of sound emitted therefrom and that is thus capable of forming a sweet spot in front to be as wide as the sound emitted from the origin is described with reference to FIGS. 6 to 12 below.
  • FIGS. 6 and 7 are diagrams illustrating examples of a terminal apparatus including a speaker according to exemplary embodiments.
  • terminal apparatus 600 includes speakers 621 to 624, a display 610, flat panel speakers 631 to 634, and a controller (not shown).
  • the speakers 621 to 624 may output a sound signal corresponding to an image that is displayed on the display 610 based on the control of the controller.
  • the display 610 is large in size such as an ultra-high definition (UHD) display, when the speakers are located only on a lower end of the terminal apparatus 600, a listener may hear sound only via the speakers on the lower end and may not sense stereoscopic three-dimensional (3D) sound. Therefore, sound generated at an upper region of an image displayed on the display 610 may be output via speakers at an upper end of the terminal apparatus 600 to cause the listener to experience a stereoscopic effect caused when the sound is generated at the upper region of the image.
  • UHD ultra-high definition
  • sound may be output through the speakers 621 to 624 at different locations according to a location of the sound on the image that is being displayed on the display 610 to give the stereoscopic effect to the listener.
  • the sound may be output from the terminal apparatus 600 in a direction that corresponds to a speaker or other audible device that is displayed on a screen of the terminal apparatus 600.
  • the speaker 621 may output sound generated at a left upper region of the display 610 and the speaker 622 may output sound generated at a right upper region of the display 610. Also, in this example the speaker 623 may output sound generated at a left lower region of the display 610 and the speaker 624 may output sound generated at a right lower region of the display 610.
  • the upper speakers 621 and 622 which may output high-frequency sound of high directivity from among sound generated at the upper region of the display 610.
  • the lower speakers 623 and 624 may output low-frequency sound of low directivity from among the sound generated at the upper region of the display 610 or the sound generated at the lower end of the display 610.
  • the terminal apparatus 600 includes the flat panel speakers 631 to 634 to provide a higher stereoscopic effect to a listener.
  • the flat panel speakers 631 to 634 illustrated in FIG. 6a are examples of the vibration unit of the flat panel speaker described above.
  • the flat panel speakers 631 to 634 may output sound by generating a bending wave in a region of the screen where the sound is generated. This can address a problem in which sound generated at a central region of the display 610 is output from a region that is far from the central region. For example, when the display 610 is a UHD display, the size of the display 610 is large and sound is highly likely to be output from a region that is far from a region where the sound is generated on a screen. Thus, a listener would experience a separation due to the sound output being at a different position than the displayed image. For example, high-frequency sound has high directivity and thus the separation that the listener experiences may increase.
  • the terminal apparatus 600 may control a voice from being output from the mouth of the person displayed on the display unit 600 using the flat panel speakers 631 to 634.
  • the terminal apparatus 600 may control high-directivity sound such as high-frequency sound to be output through the flat panel speakers 631 to 634.
  • the speakers 621 to 624 are included in the terminal apparatus 600.
  • exemplary embodiments are not limited thereto.
  • the speakers 621 to 624 may each include a clamping unit (not shown) and may be combined with the upper or lower end of the terminal apparatus 600 via the clamping unit.
  • terminal apparatus 600 in this example includes speakers 625 and 626 located along a top and a bottom of a display 611, and a controller (not shown).
  • terminal apparatus 600 includes speakers 627 and 628 located along a left side and a right side of a display 612, and a controller (not shown).
  • Each of the speakers 625 to 628 illustrated in FIGS. 6b and 6c may be located vertically or horizontally with respect to the upper and lower ends of the left and right sides of the terminal apparatus 600.
  • the speakers 625 and 626 of FIG. 6b are located along a horizontal direction with respect to the upper and lower ends of the terminal apparatus 600 and have a length corresponding thereto.
  • the speaker 625 located at the upper end of the terminal apparatus 600 may form an upper layer and output sound generated at an upper end of the display 611.
  • the left and right portions of the speaker 625 at the upper end of the terminal apparatus 600 may output sound that is generated at a left upper region of the display 611 and sound generated at a right upper region of the display 611, respectively.
  • the speaker 626 located at the lower region of the terminal apparatus 600 may form a lower layer and output sound generated at the lower region of the display 611. Furthermore, left and right portions of the speaker 629 located at the lower region of the terminal apparatus 600 may output sound generated at a left lower region of the display 611 and sound generated at a right lower region of the display 611, respectively.
  • the speakers 627 and 628 of FIG. 6c are located along a vertical direction with respect to the upper and lower portions of the terminal apparatus 600.
  • the speaker 627 located at the left side of the terminal apparatus 600 may output sound that is generated at a left region of the display 611.
  • upper and lower portions of the speaker 627 of the terminal apparatus 600 may form an upper layer and a lower layer and may output sound generated at a left upper region of the display 611 and sound generated at a left lower region of the display 611, respectively.
  • the speaker 628 located at the right side of the terminal apparatus 600 may output sound generated at a right region of the display 611. Furthermore, upper and lower portions of the speaker 628 of the terminal apparatus 600 may form an upper layer and a lower layer and may output sound generated at a right upper region of the display 611 and sound generated at a right lower region of the display 611, respectively.
  • speakers may be attached to the upper and lower ends of and/or the left and right sides of the display 610, 611, or 612 according to the size of the display to output sound.
  • a 46-inch display which is relatively small in size may include speakers attached to the upper and lower regions of the display in a horizontal direction based on the distance between the left and right sides of the display being small. The speakers may output sound generated at the upper end of the display and sound generated at the lower end of the display, respectively.
  • a 60-inch display which is relatively large in size may include speakers attached to the left and right sides of the display in a vertical direction based on the distance between the left and right sides of the display being large. The speakers may output sound generated at the left side of the display and sound generated at the right side of the display, respectively.
  • the speakers attached to the display may set a region of the display for outputting sound, for example, based on sensing performed by a gyrosensor or by determining whether the speakers are horizontally or vertically installed. For example, when the speakers are attached to the upper and lower regions of the display in the horizontal direction, the speakers may output sound generated at the upper region of the display and sound generated at the lower region of the display, respectively. Also, when the speakers are attached to the left and right regions of the display in the vertical direction, the speakers may output sound generated at the left side of the display and sound generated at the right side of the display, respectively.
  • the speakers may be attached to left and right sides of a curved display in the vertical direction, respectively, as illustrated in FIG. 6c .
  • the speakers may output sound generated at the left side of the display and sound generated at the right side of the display, respectively.
  • speakers may be attached at locations on a display based on the size or shape of the display such that sound generated at various regions of the display may be output according to the locations of the speakers.
  • terminal apparatus 710 includes speakers 711 and 712 at a lower end thereof
  • terminal apparatus 720 includes speakers 721 and 722 at a lower end thereof
  • terminal apparatus 730 includes speakers 731 and 732 at a lower end thereof.
  • one speaker is installed at each of a left side and a right side of each of the terminal apparatuses 710 to 730 to output sound in the left and right directions.
  • the speakers may be arranged on the left and right sides of the terminal apparatuses 710 to 730 such that the distance between the speaker on the left side and the speaker on the right side are maximized or otherwise increased according to the size of each of the terminal apparatuses 710 to 730. That is, when the speakers are included on an outer portion of the terminal apparatuses 710 to 730 and not within, the speakers may be arranged such that the distances between the speakers are maximized according to the sizes of the terminal apparatuses 710 to 730, thereby maximizing the stereoscopic and imaging effects of output sound.
  • the speakers may be arranged such that they are along a bottom pane of the terminal apparatus with a distance between them based on the width of the pane.
  • FIG. 7 illustrates only the speakers on the lower sides of the terminal apparatuses 710 to 730
  • the speakers may also or instead be arranged on the upper side of the display such as the display 610 illustrated in FIG. 6a such that the distance between the speakers 621 and 622 is maximized.
  • the speakers 711 to 732 are included in the terminal apparatuses 710 to 730.
  • exemplary embodiments are not limited thereto and each of the speakers 711 to 732 may include a clamping unit and be combined with an upper or lower end of one of the terminal apparatuses 710 to 730 by the clamping unit.
  • FIGS. 8 to 10 and 12 are diagrams illustrating examples of a speaker apparatus according to exemplary embodiments.
  • Apparatus 800 illustrated in FIG. 8a or 8b may be a speaker apparatus or a terminal apparatus including speakers.
  • FIG. 8a illustrates an example in which the apparatus 800 is disposed on a horizontal plane.
  • FIG. 8b illustrates an example in which the apparatus 800 is disposed on a wall surface perpendicular to a horizontal plane.
  • the apparatus 800 includes slidable plates 810 and 820, and slits 831 and 832 of the slidable plates 810 and 820 include speakers outputting sound via the slits 831 and 832 (hereinafter, referred to as the speakers 831 and 832).
  • the apparatus 800 may obtain forward sound and/or backward sound by analyzing sound that is to be output or based on information about the sound. Also, the apparatus 800 may output the forward sound through the speaker 831 which in this example is a front speaker, and output the backward sound through the speaker 832 which in this example is a rear speaker.
  • the apparatus 800 may output high-frequency sound of high directivity through the speaker 832 and low-frequency sound of low directivity through the speaker 831 from among the backward sound.
  • the backward sound is reflected from a rear wall surface of the apparatus 800 and then directed to a listener.
  • the listener may experience the stereoscopic and imaging effects.
  • the apparatus 800 may obtain high-pitched sound by analyzing sound that is to be output or based on information about the sound. Also, the apparatus 800 may output high-pitched sound through the speaker 832 which in this example is an upper speaker and other sound through the speaker 831 which is a lower speaker.
  • the apparatus 800 may output high-frequency sound of high directivity through the speaker 832 which is an upper speaker and low-frequency sound of low directivity through the speaker 831 which is a lower speaker from among the high-pitched sound. Also, the high-pitched sound may be reflected from the surface of a ceiling disposed above the apparatus 800 and then directed to a listener. Thus, the listener may experience the stereoscopic and imaging effects.
  • speaker apparatus 900 includes speaker modules 910 through 950.
  • the speaker apparatus 900 may detect a position of a listener using an infrared sensor or the like. In this example, the speaker apparatus 900 may select at least one of the speaker modules 950 and 940 for outputting sound via slits because these speakers are most adjacent to the position of the listener among the speaker modules 910 to 950. Also, the speaker apparatus 900 may output sound through at least one of the selected speaker modules so that the position of the listener is included in a sweet spot of the output sound.
  • speaker apparatus 900 includes speaker modules 960 and 970.
  • the speaker apparatus 900 may detect the position of a listener using an infrared sensor or the like, and rotate the speaker modules 960 and 970 such that the position of the listener is included in a sweet spot of the output sound.
  • speaker apparatus 1000 includes speakers 1010 and 1020, and a woofer 1030.
  • the speakers 1010 and 1020 may output middle-pitched sound and high-pitched sound.
  • the speakers 1010 and 1020 are disposed on opposite sides of each other and output sound of different channels.
  • FIGS. 10a and 10b illustrate only two speakers 1010 and 1020, exemplary embodiments are not limited thereto and it should be appreciated that the speaker apparatus 1000 may include more than two speakers.
  • the woofer 1030 may be a low-pitched sound speaker designed to output low-pitched sound, for example, sound of about 3 kHz or less.
  • the woofer 1030 may be installed such that a sound vibration plate thereof faces downward and may output low-frequency sound via low slits in the speaker apparatus 1000 similar to a speaker.
  • FIG. 10b is a view from above the speaker apparatus 1000 of FIG. 10a .
  • the speakers 1010 and 1020 may output sound bilaterally.
  • the speakers 1010 and 1020 may generate a sweet spot in a forward direction of the display to be as wide as the sound emitted from the origin.
  • a sweet spot may be formed in wide forward and backward regions of the speaker apparatus 1000.
  • a sweet spot of the sound may be formed as wide as the sound emitted from the origin according to the features of the speakers 1010 and 1020. That is, according to an exemplary embodiment, high-frequency sound of high directivity may be output through the speakers 1010 and 1020 which are the upper speakers and low-frequency sound of low directivity may be output through the woofer 1030 which is the lower speaker.
  • the speaker apparatus 1000 may further include a flat panel speaker (not shown) on a front or a back surface thereof to output middle-pitched sound and high-pitched sound.
  • a flat panel speaker (not shown) on a front or a back surface thereof to output middle-pitched sound and high-pitched sound.
  • FIG. 11 is a diagram illustrating an example of a terminal apparatus including a speaker according to an exemplary embodiment.
  • terminal apparatus 1100 includes a speaker 1110, and flat panel speakers 1121 and 1122 which in this example are disposed in a flip cover.
  • the flat panel speakers 1121 and 1122 may generate a vibration that outputs a haptic effect when a page is flipped over on a display by a user manipulating a document displayed on the terminal apparatus 1100 or when a soft button displayed on the display is input by the user.
  • the terminal apparatus 1100 may output sound through not only the speaker 1110 but also through the flat panel speakers 1121 and 1122 in the flip cover, thereby enhancing a stereoscopic imaging effect of a sound source. Accordingly, sound may be output through speakers of various regions of the terminal apparatus 1100, thereby enhancing the stereoscopic imaging effect of the sound source.
  • low-frequency sound may be output through the speaker 1110.
  • FIG. 12 is a diagram illustrating an example of a speaker apparatus according to exemplary embodiment.
  • speaker apparatus 1200 may have an oval or circular shape and in this example includes speaker modules 1210 to 1240.
  • the speaker modules 1210 to 1240 may output sound via round slits indicated by a thick line in FIG. 12 .
  • the speaker modules 1210 to 1240 located on a front surface of the speaker apparatus 1200 may output sound of a front-surface sound source, and speaker modules that are not shown in this example located on a rear surface of the speaker apparatus 2000 may output sound of a rear-surface sound source.
  • middle-pitched sound and high-pitched sound that have high directivity may be output through the speakers 1230 and 1240 according to channels thereof, respectively.
  • Low-pitched sound that has low directivity may be output through the speakers 1210 and 1220 which are upper and lower speakers.
  • High-directivity sound may be output through the speaker 1230 or 1240 according to a direction thereof.
  • high-directivity sound that has a left directional property may be output through the speaker 1230 which is a left speaker.
  • low-pitched sound of low directivity may be output through the speakers 1210 and 1220 which are upper and lower speakers without determining whether the sound has a left or a right directional property.
  • An additional structure such as a light emitting diode (LED) bulb may be further disposed on a center of the speaker apparatus 1200 to add an additional function to the speaker apparatus 1200.
  • the LED bulb may be turned on when sound is output from the speaker apparatus 1200.
  • a method of outputting sound through a speaker apparatus such as that of the apparatus 800 shown in FIG. 8 is described with reference to FIG. 13 below.
  • FIG. 13 is a flowchart illustrating a method of outputting sound via a speaker apparatus according to an exemplary embodiment.
  • the speaker apparatus determines whether a first speaker and a second speaker that output sound via at least one slit are disposed on a same plane.
  • the speaker apparatus 800 obtains a forward/backward sound source from a sound signal to be output.
  • the forward/backward sound source is a sound signal to be output similar to a sound source generated at a front or rear surface of the speaker apparatus.
  • the speaker apparatus may output sound for the forward/backward sound source, which is obtained in operation S1303, through the first speaker and the second speaker.
  • the speaker apparatus may output high-frequency sound of high directivity through a rear speaker and low-frequency sound of low directivity through a front speaker from among backward sound.
  • the backward sound may be reflected from a rear wall surface of the speaker apparatus and directed to a listener. Accordingly, the listener may experience the stereoscopic and imaging effects.
  • the speaker apparatus may perform operation S1307.
  • the speaker apparatus obtains high-pitched sound from a sound signal to be output, and control high-frequency sound from among the high-pitched sound through the speaker which is the upper speaker.
  • the speaker apparatus may control low-frequency sound from among the high-pitched sound or other sound except for the high-pitched sound to be output through the speaker which is the lower speaker.
  • a high-pitched sound signal may be output on an upper layer of a display through a speaker to form a wide sweet spot.
  • 3D sound representing high-pitched sound or a forward/backward sound source may be output through a plurality of speakers.
  • a method according to an exemplary embodiment of the present invention can be embodied as computer readable code in a non-transitory computer readable recording media (including various devices having an information processing function).
  • the non-transitory computer readable recording media include various types of recording apparatuses capable of storing data that is read by a computer system, e.g., read-only memory (ROM), random access memory (RAM), a compact disc (CD)-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
  • the invention might include, relate to, and/or be defined by, the following aspects:

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  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP19201658.2A 2013-10-24 2014-10-24 Method and apparatus for outputting sound through speaker Ceased EP3614691A1 (en)

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US201361895103P 2013-10-24 2013-10-24
KR1020140019433A KR102077236B1 (ko) 2013-10-24 2014-02-20 틈 스피커를 통해 음향을 출력하는 방법 및 장치
PCT/KR2014/010058 WO2015060678A1 (en) 2013-10-24 2014-10-24 Method and apparatus for outputting sound through speaker
EP14855027.0A EP3058753A4 (en) 2013-10-24 2014-10-24 Method and apparatus for outputting sound through speaker

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111327850A (zh) * 2020-04-02 2020-06-23 深圳创维－Rgb电子有限公司 一种具有AIoT声效的电视机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210110573A (ko) 2018-12-26 2021-09-08 소니그룹주식회사 표시 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100067726A1 (en) * 2008-09-09 2010-03-18 Sony Corporation Speaker system and speaker driving method
EP2360938A1 (en) * 2010-02-02 2011-08-24 Samsung Electronics Co., Ltd. Sound plate and electronic device employing the same
JP2012244314A (ja) * 2011-05-18 2012-12-10 Panasonic Corp スピーカシステムおよびこれを用いた電子機器、移動体装置
KR20140019433A (ko) 2011-04-04 2014-02-14 엘지전자 주식회사 무선 통신 시스템에서 이동성 평가를 기반으로 한 통신 방법 및 이를 지원하는 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101188578B1 (ko) * 2006-09-11 2012-10-05 엘지전자 주식회사 스피커 시스템
KR100934928B1 (ko) * 2008-03-20 2010-01-06 박승민 오브젝트중심의 입체음향 좌표표시를 갖는 디스플레이장치
TWI384872B (zh) * 2008-05-15 2013-02-01 Hannspree Inc Flat display with sliding horn structure
US8150063B2 (en) * 2008-11-25 2012-04-03 Apple Inc. Stabilizing directional audio input from a moving microphone array
KR101793691B1 (ko) * 2011-03-09 2017-11-03 삼성전자주식회사 음향 출력 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100067726A1 (en) * 2008-09-09 2010-03-18 Sony Corporation Speaker system and speaker driving method
EP2360938A1 (en) * 2010-02-02 2011-08-24 Samsung Electronics Co., Ltd. Sound plate and electronic device employing the same
KR20140019433A (ko) 2011-04-04 2014-02-14 엘지전자 주식회사 무선 통신 시스템에서 이동성 평가를 기반으로 한 통신 방법 및 이를 지원하는 장치
JP2012244314A (ja) * 2011-05-18 2012-12-10 Panasonic Corp スピーカシステムおよびこれを用いた電子機器、移動体装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111327850A (zh) * 2020-04-02 2020-06-23 深圳创维－Rgb电子有限公司 一种具有AIoT声效的电视机

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KR20150047411A (ko) 2015-05-04
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KR102077236B1 (ko) 2020-02-13

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