Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
  • H04R11/00—Transducers of moving-armature or moving-core type
  • H04R11/02—Loudspeakers

Definitions

• the present invention relates to a sensory signal output apparatus that outputs either vibrations or sounds, or outputs both vibrations and sounds.
• a sensory signal output apparatus is a sound or vibration output apparatus, such as a speaker, a receiver, a buzzer or vibrator, that outputs sounds or generates vibrations by the conversion of electrical signals, input from a signal source, into mechanical signals or vibrations.
• a conventional sensory signal output apparatus generates vibrations and/or sounds in such a way that a coil, which is fastened to one surface of a vibration plate, is located in the gap between a yoke and a magnet and between the yoke and a top plate, the magnet and the top plate being sequentially layered on and fastened to the upper surface of the yoke by bonding or welding, and a magnetic circuit unit, which includes the yoke, the magnet and the top plate, and/or the coil and the vibration plate, vibrates in response to the magnetic flux, which is formed in the gap according to the direction of an Alternating Current (AC) signal applied to the coil.
• AC Alternating Current
• the yoke, the magnet and the top plate are included in the magnetic circuit unit.
• the coil, or the coil and the vibration plate, is included in a vibration unit.
• each of the yoke, the magnet and the top plate, that is, the constituent members of the magnetic circuit unit, are fastened using an adhesive agent, and the magnetic circuit unit and a leaf spring, which supports the magnetic circuit unit, are also bonded and fastened using an adhesive angent. Subsequently, injection molding is performed in the state in which the outer circumference of the leaf spring is inserted into the inner surface of a casing, or fastening is acheived using a separate fastening member.
• the coupling between the leaf spring and the casing is achieved in such a way that, when the casing is manufactured by injection molding, the leaf spring to which the magnetic circuit unit is fastened, or only the leaf spring, is fastened to a jig and, then the injection molding is performed, so that there is a problem in that the surface of the leaf spring is made less aesthetically appealing or in that the leaf spring is not accurately fastened. Disclosure of Invention
• an object of the present invention is to provide a sensory signal output apparatus, having a magnetic circuit unit that generates vibrations in conjunction with a coil, through which an alternating signal flows, in which the outer circumferential surface of the magnetic circuit unit package is surrounded and fastened by an elastic body and is thus elastically supported, and in which the central portion of the elastic body is fitted into a casing.
• Another object of the present invention is to provide a sensory signal output apparatus, having a magnetic circuit unit that generates vibrations in conjunction with a coil, through which an alternating signal flows, in which the central portion of one surface of the magnetic circuit unit package is elastically supported by the central portion of the elastic body, the outer circumference of the elastic body is in surface contact with the bottom surface of the casing, the end of the outer circumference is bent upwards so as to be in close contact with the inner circumferential surface of the casing main body and to extend to the open end of the casing main body, thus increasing the efficiency of assembly and productivity.
• the present invention provides a sensory signal output apparatus, comprising a magnetic circuit unit for generating vibrations in conjunction with a coil, through which an alternating signal flows, wherein: the outer circumferential surface of a magnetic circuit unit package is surrounded and fastened by an elastic body and is thus elastically supported, and the central portion of the elastic body is fitted into a casing.
• the sensory signal output apparatus is a linear vibration motor, the linear vibration motor comprising a magnetic circuit unit for generating vibrations in conjunction with a coil, through which an alternating signal flows, wherein: the outer circumferential surface of a magnetic circuit unit package is surrounded and fastened by an elastic body and is thus elastically supported, and the central portion of the elastic body is fitted into a casing.
• the sensory signal output apparatus is a sound output device, which outputs sounds using a magnetic circuit unit, the magnetic circuit unit operating in conjunction with a coil, through which an alternating signal flows and which is provided in the central portion of a vibration plate, the outer circumference of the vibration plate being fastened to the open circumferential portion of a casing, wherein: the outer circumferential surface of a magnetic circuit unit package is surrounded and fastened by an elastic body and is thus elastically supported, and the central portion of the elastic body is fitted into a casing.
• the sensory signal output apparatus is a vibrator, which outputs sounds using a magnetic circuit unit, the magnetic circuit unit operating in conjunction with a coil, through which an alternating signal flows, wherein: the outer circumferential surface of a magnetic circuit unit package is surrounded and fastened by an elastic body and is thus elastically supported, and the central portion of the elastic body is fitted into a casing.
• the present invention provides a sensory signal output apparatus, comprising a magnetic circuit unit that generates vibrations in conjunction with a coil, through which an alternating signal flows, wherein: the central portion of one surface of a magnetic circuit unit package is elastically supported by the central portion of an elastic body, the outer circumference of the elastic body is in surface contact with the bottom surface of a casing, and the end of the outer circumference of the elastic body is bent upwards to be in close contact with the inner circumferential surface of the casing and to extend to the open portion of the casing.
• the fastening of the magnetic circuit unit to the elastic body and the fastening of the elastic body to the casing can be achieved without requiring the use of any adhesive agent, so that the efficiency of assembly and productivity are improved, with the result that the cost of a product can be reduced and, in addition, products having uniform quality can be manufactured.
• the transmission of vibrations can be maximized owing to the increase of the vibration transmission area, so that the performance of products is improved, and thus the competitiveness can be increased.
• FIG. 1 is an exploded perspective view showing the construction of a sensory signal output apparatus according to a first embodiment of the present invention
• FIG. 2 is a sectional view showing the construction of the sensory signal output apparatus according to the first embodiment of the present invention
• FIG. 3 is a sectional view showing the construction of a sensory signal output apparatus according to a second embodiment of the present invention
• FIGS. 4 to 10 are sectional views showing various types of coupling between a casing and an elastic body, according to the present invention
• FIG. 11 is an exploded perspective view showing the construction of a sensory signal output apparatus according to a third embodiment of the present invention
• FIG. 12 is a sectional view illustrating the construction of FIG. 11;
• FIG. 13 is a sectional view showing the construction of a sensory signal output apparatus according to a fourth embodiment of the present invention.
• FIGS. 14 to 16 are sectional views showing modifications of the third embodiment.
• FIG. 1 is an exploded perspective view showing the construction of a sensory signal output apparatus according to a first embodiment of the present invention
• FIG. 2 is a sectional view showing the construction of the sensory signal output apparatus according to the first embodiment of the present invention
• FIG. 3 is a sectional view showing the construction of a sensory signal output apparatus according to a second embodiment of the present invention
• FIGS. 4 to 10 are sectional views showing various types of coupling between a casing and an elastic body, according to the present invention
• FIG. 11 is an exploded perspective view showing the construction of a sensory signal output apparatus according to a third embodiment of the present invention
• FIG. 12 is a sectional view illustrating the construction of FIG. 11
• FIG. 13 is a sectional view showing the construction of a sensory signal output apparatus according to a fourth embodiment of the present invention
• FIGS. 14 to 16 are sectional views showing modifications of the third embodiment.
• the sensory signal output apparatus 10 may include a magnetic circuit unit 15 for generating vibrations in conjunction with a coil 14, through which an alternating signal flows, and may be configured such that the outer circumferential surface of a magnetic circuit unit 15 package is surrounded and fastened by an elastic body 19 and is thus elastically supported, and the central portion of the elastic body 19 is fitted into a casing 11.
• the casing 11 may include a casing main body 12 formed to have the shape of a container, which is open in one direction thereof, and a cover 13 for covering the open portion of the casing main body 12.
• the coupling between the casing main body 12 and the cover 13 may be achieved by fitting a protrusion, which is formed on the outer circumference of the cover 13, into a depression, which is formed in the inner edge of the casing main body 12, may be achieved such that the cover 13 can be rotationally opened and closed using threads, which are formed in respective inner and outer circumferences, or may be achieved by bonding.
• the coupling may be achieved by bending and compressing the edge of the open circumferential portion of the casing main body 12 in the direction of the outer circumference of the cover 13, which is placed on the casing main body 12.
• a coupling member 12a for enabling the fitting of the elastic body 19 may be provided in the central portion of the bottom surface of the casing main body 12.
• the work for fastening the elastic body 19 to the casing main body 12 can be easily performed, and the external appearance of the apparatus can be prevented from being spoiled because the fastening is achieved without requiring the use of any adhesive agent.
• the efficiency of manufacture can be improved because it is not necessary to fasten the elastic body 19 to the casing main body 12 by injection molding.
• the coupling member 12a may be a through-hole.
• a depression 13a in which the coil 14 is seated, may be formed in the central portion of one surface of the cover 13,
• stepped portions may be formed such that the upper surface of the cover 13 and the bent portion of the casing main body 12 have the same surface height.
• the coil 14 may be a circular coil which is wound such that the flow of current is changed according to an alternating signal, which is applied by an external signal supply source, and may be bonded and fastened to the depression 13a, which is formed in the central portion of the cover 13.
• the magnetic circuit unit 15 may include a magnet 16, a top plate 17 seated on and fastened to the upper surface of the magnet, a yoke 18 configured such that the upper portion thereof is fitted into the outer circumference of the magnet 16 through compression, a gap is formed by causing the lower portion thereof to be bent inwards and form a surface, which is opposite the outer circumferential surface of the magnet 16, and one end of the yoke 18 is bent toward the free space in the yoke 18, and a weight body 16' coupled with the outer circumferential surface of the yoke 18 through compression in a fitting manner.
• the magnet 16 may be a circular magnet.
• the top plate 17 may be a circular board, which is formed of a magnetic body having a diameter greater than that of the magnet 16.
• the weight body 16' is a weight body having no magnetic properties, and may be made of tungsten, an alloy containing tungsten, or other metal material.
• a stepped portion may be formed in one surface of the weight body 16' so that one end of the yoke 18 which extends to the free space and bent, such that the bent portion of the compression member 19b of the elastic body 19, which will be described later, have the same surface height.
• the elastic body 19 is a leaf spring that extends to have a horn shape in the direction of the open portion of the casing main body 12, constituting the casing 11, and is configured such that the extending inclined surface thereof is cut to act elastically, and may include a fastening member 19a formed by protruding the central portion of the leaf spring, and a compression member 19b configured such that the circumferential surface thereof surrounds and compresses the outer circumferential surface of the magnetic circuit unit 15 package and such that one end thereof is bent so as to restrict the magnetic circuit unit 15.
• the fastening member 19a may be a ring-shaped protrusion, which is formed in the direction opposite the direction in which the elastic body 19 extends to have the horn shape.
• the open portion of the ring-shaped protrusion may be closed.
• the fastening member 19a be formed to protrude higher than the coupling member 12a of the casing main body 12. The reason for this is to prevent the elastic body 19 from being separated from the casing main body 12 due to the action of a lever, which occurs at both the internal diameter edge of the coupling member 12a and the external diameter portion of the fastening member 19a in the process in which the elastic body 19 moves vertically.
• the magnetic circuit unit 15, which is compressed by the compression member 19b, may be the weight body 16' or the yoke 18.
• the central portion of the yoke 18 is coupled with the outer circumferential surface of the magnet 16, on the first surface of which the top plate 17 is seated, in a fitting manner, and the weight body 16' is coupled with the outer circumferential surface of the yoke 18 in a fitting manner, and thus the magnetic circuit unit 15 package is completed.
• the magnetic circuit unit 15 package is inserted into the compression member 19b of the elastic body 19 and, subsequently, the magnetic circuit unit 15 and the elastic body 19 are fastened by compressing the end of the compression member 19b while bending it toward the upper surface of the magnetic circuit unit.
• fitting the fastening member 19a of the elastic body into the coupling member 12a of casing main body 12 may be performed prior to the coupling between the magnetic circuit unit 15 and the elastic body 19.
• terminal portions of the coil 14 are bonded to the inner surface of the cover 13 and are guided to the outside, and first ends thereof are soldered to a PCB or a terminal, which is connected with an external signal supply source.
• the work for fastening the elastic body 19 to the casing main body 12 can be easily performed, and the external appearance of the apparatus can be prevented from being spoiled because the fastening is achieved without requiring the use of any adhesive agent.
• the efficiency of manufacture can be improved because it is not necessary to fasten the elastic body 19 to the casing main body 12 by injection molding.
• the present invention may be applied to a linear vibration motor using resonance frequency.
• the present invention may be used as a sound output device, which is configured such that the coil 14 is fastened to the central portion of the vibration plate 20, rather than being fastened to the cover 13, and the outer circumference of the vibration plate 20 is fastened to the edge of the open circumferential portion of the casing main body 12, as shown in FIG. 3, in order to output sound.
• the sound output device may be a multi-functional electronic sound converter that simultaneously outputs both sounds and vibrations.
• the present invention may further include an engaging ring-shaped depression 12b, which is formed in the inner circumferential surface of the through-hole, that is, the coupling member 12a of the casing main body 12, and an engaging ring-shaped protrusion 19c, which is formed on the outer circumferential surface of the fastening member 19a of the elastic body 19 and is coupled to the engaging ring-shaped depression 12b.
• the through-hole that is, the coupling member 12a of casing main body 12
• the ring-shaped protrusion that is, the fastening member 19a of the elastic body 19 also has an external diameter that is gradually increased from the upper end thereof to the lower end thereof.
• the upper end of the through-hole that is, the coupling member 12a functions as an engaging protrusion
• the lower end of the ring-shaped protrusion, that is, the fastening member 19a functions as an external diameter, so that the elastic body 19 can be prevented from being separated from the casing main body 12 due to external pressure or the excessive vertical elastic movement of the elastic body 19, such that the coupling force between the casing main body 12 and the elastic body 19 can be increased.
• the end of the ring-shaped protrusion that is, the fastening member 19a of the elastic body 19, which is inserted into the through-hole, that is, the coupling member 12a of the casing main body 12, may be bent and fastened outwards from the coupling member 12a.
• the end of the fastening member 19a of the bent elastic body 19 is brought into close contact with the outer bottom surface of the casing main body 12, so that the elastic body 19 can thereby be prevented from being separated from the casing main body 12 due to external pressure or the excessive vertical elastic movement of the elastic body 19, that is, the coupling force between the casing main body 12 and the elastic body 19 can be increased.
• 13b may be integrated with the cover 13 in the central portion of the cover 13 so as to pass through the central portions of the magnet 16 and top plate 17 of the magnetic circuit unit 15 and to extend to the upper surface of the fastening member 19a of the elastic body 19.
• the fastening member 19a of the elastic body 19 may be configured to pass through the central portions of the magnet 16 and top plate 17 of the magnetic circuit unit 15, to protrude and extend to the inner surface of the cover 13, and to be fitted into the central portion of the inner surface of the cover 13.
• the central portion of the elastic body 19, which extends to the inner surface of the cover 13, may be bent and extended outwards from the inner surface of the cover so as to be in close contact with the inner surface of the cover 13.
• the fastening member 19a of the elastic body 19 is a rivet pin.
• the elastic body 19 may be riveted to the lower surface of the casing main body 12 in such a way as to pass through the middle portion of the elastic body 19.
• the yoke 18 is located in the central portion of the weight body 16', which is formed of a wide board, and such that the magnet 16 and the top plate 17, which have ring shapes, are layered to have a gap in the outside thereof.
• the present invention may be applied to a vibrator, such as a linear vibration motor using resonance frequency, which generates vibrations and may be used as a sound output device for outputting sounds, and a multi-functional electronic sound converter for outputting both vibrations and sounds.
• a vibrator such as a linear vibration motor using resonance frequency
• the present invention may be used as a device that enables a touch screen to stimulate the sensation of the skin by generating vibrations. In this case, sounds may be simultaneously output.
• An example of the above-described device that outputs sounds includes a speaker, a receiver, or an earphone. Such sound output devices are provided for with the above- described vibration plate.
• the sensory signal output apparatus 10 which include a magnetic circuit unit 15 for generating vibrations in conjunction with a coil 14, through which an alternating signal flows, may be configured such that the central portion of one surface of a magnetic circuit unit 15 package is elastically supported by the central portion of an elastic body 19, the outer circumference of the elastic body 19 is in surface contact with the bottom surface of a casing 11, and the end of the outer circumference is bent upwards to be in close contact with the inner circumferential surface of the casing 11 and to extend to the open end of the casing 11.
• the casing 11 may include a container- shaped casing main body 12 provided with a stepped portion 12c, which is formed in the end of the open portion thereof, and a cover 13 provided with a curling stepped portion 13c at the upper outer circumference thereof, the curling stepped portion 13c being seated on the stepped portion 12c of the casing main body 12, and may be configured such that coupling is achieved by curling the end of the stepped portion 12c of the casing main body 12 in the direction of the central portion of the cover 13 seated on the casing main body 12.
• the curling stepped portion 13c of the cover 13 is provided such that the same height is maintained when the casing main body 12 is curled over the cover 13.
• the casing main body 12 and the cover 13 can be securely fastened to each other without requiring the use of any adhesive agent.
• the coupling between the casing main body 12 may be achieved by fitting a protrusion, which is formed on the outer circumference of the cover 13, into a depression, which is formed in the inner edge of the casing main body 12, or may be achieved such that the cover 13 is rotationally opened and closed using threads, which are formed in respective inner and outer circumferences, or may be achieved by bonding.
• the work for fastening the elastic body 19 to the casing main body 12 can be easily performed, and the external appearance of the apparatus can be prevented from being spoiled because the fastening is achieved without requiring the use of any adhesive agent.
• the efficiency of manufacture can be improved because it is not necessary to fasten the elastic body 19 to the casing main body 12 by injection molding.
• the cover 13 may be provided with a depression, which is formed such that the coil 14 is seated in the central portion of one surface thereof.
• the coil 14 may be a circular coil which is wound such that the flow of current is changed according to an alternating signal, which is applied by an external signal supply source, and may be bonded and fastened to the depression, which is formed in the central portion of the cover 13.
• the magnetic circuit unit 15 may include a magnet 16, a top plate 17 seated on and fastened to the upper surface of the magnet, a yoke 18 configured such that a seating depression 18a is formed such that the lower surface of the magnet 16 is fitted into the central portion of the yoke 18, the outer circumference of the yoke 18 is bent outwards to form a surface, which is opposite the outer circumferential surface of the magnet 16, and a gap, one end of the yoke 18 is bent toward the free space in the yoke 18, a rivet pin 18b is integrally formed downwards in the central portion of the lower surface of the yoke 18, and a weight body 16' fitted into the outer circumferential surface of the yoke 18 through compression and provided with an inner ring-shaped protrusion 16a, which corresponds to the end bent toward the free space in the yoke 18 and is formed in the upper surface of the weight body 16'.
• the bent and protruding portion of the yoke 18 is curled and is brought into close contact with the inner ring-shaped protrusion 16a of the weight body 16,' so that the bent end of the yoke 18 is exposed to the outside, and thus the leakage of magnetic flux can be prevented.
• the end that is bent toward the free space in the yoke 18 functions as a stopper that prevents the weight body 16a' from being released upwards.
• the magnet 16 may be circular magnet.
• the top plate 17 may be a circular board, which is formed of a magnetic body having a diameter greater than that of the magnet 16.
• the internal diameter of the seating depression 18a of the yoke 18 conforms to the external diameter of the magnet 16, and thus tight shrink- fitting can be achieved.
• the weight body 16' is a weight body having no magnetic properties, and may be made of tungsten, an alloy containing tungsten, or other metal material.
• the elastic body 19 is a leaf spring that extends in the direction from the central portion, which supports the magnetic circuit unit 15, to the inner bottom surface of the casing main body 12, constituting the casing 11, and is configured such that the extending inclined surface thereof is cut to act elastically, and may include a fastening member 19a provided in the central portion of the leaf spring, and riveted such that the rivet pin 18b of the yoke 18, constituting the magnetic circuit unit 15, passes therethrough, and a compression member 19b is formed to extend upwards from an outer circumference, which is seated on the inner bottom surface of the casing main body 12, and to be in close contact with and fastened to the inner circumferential surface of the casing main body 12.
• the fastening member 19a may be a planar body that supports the entire lower surface of the yoke 18, constituting the magnetic circuit unit 15, and a portion of the internal diameter of the lower surface of the weight body 16,' constituting the magnetic circuit unit 15.
• the weight body 16' is compressed by the end, which is bent toward the free space in the yoke 18, and the fastening member 19a, and thus the separation is prevented.
• the compression member 19b is configured such that a stepped portion, on which the cover 13 is seated, is provided at one end of the compression member 19b, which is formed bent and extending upwards, thus supporting the cover 13 when the casing main body 12 is curled over the cover 13.
• one end of the magnet 16, on one surface of which the top plate 17 is seated, is fitted into the seating depression 18a, which is formed in the central portion of the yoke 18.
• the internal diameter of the seating depression 18a of the yoke 18 is the same as the external diameter of the magnet 16, and thus tight shrink-fittting is achieved.
• the weight body 16' is coupled with the outer circumferential surface the yoke 18 in a fitting manner, and thus the magnetic circuit unit 15 package is completed.
• the external diameter of the outer circumferential surface of the yoke 18 is also the same as the internal diameter of the weight body 16,' so that tight fitting can be achieved.
• the magnetic circuit unit 15 is fastened to the fastening member 19a of elastic body 19 by riveting the rivet pin 18b.
• the compression member 19b of the elastic body 19 comes into close contact with the inner circumferential surface of the casing main body 12 by fitting the elastic body 19 into the casing main body 12.
• the fitting is performed such that the lower end of the compression member 19b is seated on the inner bottom surface of the casing main body 12.
• terminal portions of the coil 14 are bonded to the inner surface of the cover 13 and are guided to the outside, and first ends thereof are soldered to a PCB or a terminal, which is connected with an external signal supply source.
• the work for fastening the elastic body 19 to the casing main body 12 can be easily performed, and the external appearance of the apparatus can be prevented from being spoiled because the fastening is achieved without requiring the use of any adhesive agent.
• the efficiency of manufacture can be improved because it is not necessary to fasten the elastic body
• the present invention may be applied to a linear vibration motor using resonance frequency.
• the present invention may be used as a sound output device, which is configured such that the coil 14 is fastened to the central portion of the vibration plate 20, rather than being fastened to the cover 13, and the outer circumferential portion of the vibration plate 20 is fastened to the open circumferential portion of the casing main body 12, as shown in FIG. 13, in order to output sounds.
• the sound output device may be a multi-functional electronic sound converter that simultaneously outputs both sounds and vibrations.
• the present invention may be configured such that a yoke 18, the outer circumference of which protrudes in one direction, is seated on the upper surface of the fastening member 19a of the elastic body 19, a magnet 16 and a top plate 17 are spaced apart from the protruding outer circumference and are layered in the central portion of the yoke 18, and a rivet pin 17a is integrally formed on one surface of the top plate 17, so that riveting can be acheived by causing the rivet pin 17a to pass through the central portions of the magnet 16 and the yoke 18 and the central portion of the fastening member 19a of the elastic body 19.
• the present invention may be configured such that a yoke 18, the outer circumference of which protrudes, is seated on the upper surface of the fastening member 19a of the elastic body 19, a magnet 16 and a top plate 17 are spaced apart from the protruding outer circumference and are layered in the central portion of the yoke 18, and riveting is achieved by causing a separate rivet pin 17b to pass through the central portions of the magnet 16 and the yoke 18 and the central portion of the fastening member 19a of the elastic body 19 from the upper surface of the top plate 17.
• the bonding structure in which the magnet 16 and the top plate 17 are fastened using an adhesive agent may be replaced by coupling using the rivet, and thus the external appearance of the apparatus can be completely prevented from being spoiled by the adhesive agent.
• the present invention may be configured such that a magnet 16 and a top plate 17 are spaced apart from the protruding central portion of a yoke 18, the central portion of which protrudes, and are seated on the outer circumferential portion of the yoke 18, a rivet pin 18b is integrally formed on the other surface of the yoke 18, so that a magnetic circuit unit 15 is riveted and fastened to the elastic body 19 by causing a rivet pin 18b to pass through the fastening member 19a of the elastic body 19 and the coupling of the magnetic circuit unit 15 is achieved in such a way that both ends of a ring-shaped coupling member 30 are drawn in the state in which the outer circumferential portion of the yoke 18 and the outer circumferential portions of the magnet 16 and the top plate 17 are surrounded by the ring-shaped coupling member 30.
• the weight body 16' may be provided or removed on the lower surface of the magnetic circuit unit 15 as demanded.
• the present invention may be applied to a vibrator, such as a linear vibration motor using resonance frequency, which generates vibrations, and may be used as a sound output device for outputting sounds, and as a multi-functional electronic sound converter for outputting both vibrations and sounds.
• a vibrator such as a linear vibration motor using resonance frequency, which generates vibrations
• the present invention may be used as a device that enables a touch screen to stimulate the sensation of the skin by generating vibrations. In this last case, sounds may be simultaneously output.
• An example of the above-described device that outputs sounds includes a speaker, a receiver, or an earphone. Such sound output devices are provided for with the above- described vibration plate.

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• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Engineering & Computer Science (AREA)
• Acoustics & Sound (AREA)
• Signal Processing (AREA)
• Apparatuses For Generation Of Mechanical Vibrations (AREA)
• Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
• Reciprocating, Oscillating Or Vibrating Motors (AREA)

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• 2008
  • 2008-06-26 CN CN201310485242.XA patent/CN103561368A/zh active Pending
  • 2008-06-26 CN CN201410588939.4A patent/CN104410944A/zh active Pending
  • 2008-06-26 CN CN200880128471.3A patent/CN101983514B/zh not_active Expired - Fee Related
  • 2008-06-26 WO PCT/KR2008/003679 patent/WO2009133986A1/en active Application Filing

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