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公开(公告)号：US10862437B2
公开(公告)日：2020-12-08
申请号：US16388529
申请日：2019-04-18
申请人： Onkyo Corporation
发明人： Makoto Yoshida
摘要： An amplification device comprising: a push pull circuit which amplifies an input signal; a diamond buffer circuit to which the signal which is amplified by the push pull circuit is input; and a current mirror circuit which is connected to a power supply and the diamond buffer circuit and is connected to a retraction current terminal of the push pull circuit.
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32.发明授权公开(公告)号：US10805735B2
公开(公告)日：2020-10-13
申请号：US16294302
申请日：2019-03-06
申请人： Onkyo Corporation
发明人： Takeshi Fujitani
IPC分类号： H04R9/06 , H04R1/10 , H04R31/00 , H04R7/18 , H04R9/02 , H04R7/12 , H04R25/00 , H04R7/14 , H04R9/04 , H04R1/20
摘要： An edge portion of a diaphragm is configured such that multiple recessed ribs formed by recessing of a raised surface are provided in an inclination direction inclined with respect to a radial line passing through a center point and are arranged rotationally symmetrically, and among the recessed ribs and a fixing portion defined on the outermost peripheral side of the diaphragm, defines an outer peripheral edge portion at which no recessed ribs are formed. A voice coil is coupled to a voice coil attachment portion. A lead line is fixed with a first adhesive forming a first adhesive layer along a valley portion defined between a certain recessed rib and an adjacent recessed rib thereof on a back side of the edge portion, and is further fixed with a second adhesive forming a second adhesive layer with the lead line being curved along the outer peripheral edge portion.
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公开(公告)号：US20200077197A1
公开(公告)日：2020-03-05
申请号：US16531095
申请日：2019-08-04
申请人： Onkyo Corporation
摘要： There is provided a diaphragm or a dust cap configured to emit a sound wave and an electrodynamic speaker unit including the diaphragm or the dust cap. The speaker unit is configured so that a great peak dip of sound pressure frequency characteristics due to influence of a divided vibration mode can be prevented and excellent reproduced sound quality can be provided. In the diaphragm or the dust cap, a recessed-raised portion imitating a wing of an insect is formed at least on one surface of a diaphragm portion configured to emit a sound wave. Preferably, the recessed-raised portion is formed based on data obtained by measurement of an actual shape of a wing vein of the insect or data of a Voronoi diagram imitating the wing vein of the insect.
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公开(公告)号：US20190341890A1
公开(公告)日：2019-11-07
申请号：US16388529
申请日：2019-04-18
申请人： Onkyo Corporation
发明人： Makoto YOSHIDA
摘要： An amplification device comprising: a push pull circuit which amplifies an input signal; a diamond buffer circuit to which the signal which is amplified by the push pull circuit is input; and a current mirror circuit which is connected to a power supply and the diamond buffer circuit and is connected to a retraction current terminal of the push pull circuit.
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公开(公告)号：US10362380B2
公开(公告)日：2019-07-23
申请号：US15792823
申请日：2017-10-25
申请人： Onkyo Corporation
发明人： Masanori Ito , Takashi Ouchi
摘要： The present invention relates to a headphone including a housing defining a back chamber on a back side of a speaker unit. A headphone includes a speaker unit and a housing defining an internal space provided on an acoustic emission side as a back side of the housed speaker unit and an air chamber provided separately from the internal space. The housing includes a first housing member provided with a first hole allowing communication between an exterior and the air chamber, a second housing member attached to the speaker unit and coupled to the first housing member to define the internal space and the air chamber, and a third housing member fixed with the third housing member being sandwiched between the first and second housing members and provided with a second hole allowing communication between the air chamber and the internal space.
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公开(公告)号：US10326407B2
公开(公告)日：2019-06-18
申请号：US15879106
申请日：2018-01-24
申请人： Onkyo Corporation
发明人： Susumu Takemura
摘要： A music reproducing device configured to have a balanced output and an unbalanced output, comprising: a first amplification circuit configured to amplify an audio signal, a second amplification circuit configured to amplify an inverted audio signal that the audio signal is inverted, a balanced output jack to which the audio signal which is amplified by the first amplification circuit and the inverted audio signal which is amplified by the second amplification circuit are output, an unbalanced output jack to which the audio signal which is amplified by the first amplification circuit is output, and circuitry configured to mute input of the second amplification circuit when plugs are connected to the balanced output jack and the unbalanced output jack.
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公开(公告)号：US20190182599A1
公开(公告)日：2019-06-13
申请号：US16212776
申请日：2018-12-07
申请人： Onkyo Corporation
发明人： Hajime YOSHIMURA
摘要： A vibrator includes a magnetic circuit having a magnetic gap, a voice coil having a coil arranged in the magnetic gap and a bobbin around which the coil is wound on one end side, a flange member coupled to the other end side of the bobbin protruding from the magnetic circuit, and an elastic coupling member coupling the magnetic circuit and the flange member so that the magnetic circuit and the flange member can vibrate relative to each other. The elastic coupling member includes a first fixed portion, a second fixed portion, and an elastic deformation portion coupling the first fixed portion and the second fixed portion via elastically-deformable coupling portions. The elastic coupling member is configured such that the first fixed portion, the second fixed portion, and the elastic deformation portion are integrally formed, and substantially houses the magnetic circuit, the voice coil, and the flange member inside.
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公开(公告)号：US20190115882A1
公开(公告)日：2019-04-18
申请号：US16159687
申请日：2018-10-14
申请人： Onkyo Corporation
发明人： Atsunori KISHIMOTO
CPC分类号： H03F3/217 , H02M3/33507 , H02M2001/0006 , H03F1/30 , H03F3/08 , H03F3/185 , H03F2200/03 , H03F2200/31 , H03F2200/504
摘要： A switching power supply comprising: a control circuit which is provided at a primary side and controls a switching element based on a value which is fed back from a secondary side; a transformer; a secondary side rectifier element which rectifies voltage which is supplied from the transformer; and a secondary side smooth element which smoothes voltage which is rectified by the rectifier element, wherein voltage which is smoothed by the smooth element is supplied to an amplifier and voltage which is smoothed by the smooth element is fed back to the control circuit, further comprising: a diode which is connected between the smooth element and the amplifier in series.
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公开(公告)号：US20190069073A1
公开(公告)日：2019-02-28
申请号：US16055045
申请日：2018-08-04
申请人： Onkyo Corporation
发明人： Takeshi FUJITANI
摘要： There are provided a headphone and an electrodynamic speaker unit exhibiting proper vibration characteristics and excellent reproduced sound quality. First, second, and third coupling portions of a frame of the headphone defining adjacent two opening holes extend from a magnetic circuit fixing portion to a diaphragm fixing portion such that each of the first, second, and third coupling portions is inclined with respect to a radial line passing through a center point, and are formed such that a first separation distance between the first coupling portion and the second coupling portion and a second separation distance between the second coupling portion and the third coupling portion in a circumferential direction are different from each other and that the opening hole areas of at least two opening holes are unequal to each other.
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公开(公告)号：US20190069061A1
公开(公告)日：2019-02-28
申请号：US16108111
申请日：2018-08-22
申请人： Onkyo Corporation
发明人： Shuji Okano
CPC分类号： H04R1/08 , H04R1/025 , H04R1/086 , H04R2410/03
摘要： According to the present invention, in a speaker device including a microphone, sound propagating from a speaker unit to the microphone through a housing is effectively reduced, and noise picked up by the microphone is reduced.The speaker device includes the housing configured to support the speaker unit, and a film-shaped elastic body configured to support the microphone. The housing includes a holding portion configured to hold the elastic body with a distance from the microphone. The elastic body has a through-hole, a support portion on which the microphone is supported is provided around the through-hole on one side of the elastic body, and the elastic body is, at an outer peripheral portion separated from the support portion, held at the holding portion.
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