Abstract:
PROBLEM TO BE SOLVED: To provide an on-vehicle speaker device capable of enhancing rigidity of interior material and transferring vibration of a composite loudspeaker efficiently to the interior material.SOLUTION: The present device is an on-vehicle speaker device 1 mounted on an interior material (ceiling base material 20) of a vehicle, and comprises: a composite loudspeaker 14 that has a loudspeaker part 12 to output a middle-pitched sound and an actuator part 13 to output a low-pitched sound; and a vibration member 15 on which the actuator part is mounted, and which supports the composite loudspeaker and is mounted on the interior material. As for the composite loudspeaker, the loudspeaker part is arranged in a cabin inner side R1, and the actuator part is arranged in a cabin outside R2 in the state where the vibration member is mounted on the interior material.
Abstract:
PROBLEM TO BE SOLVED: To provide an on-vehicle sound device having a speaker grille, which has a design surface provided on a front surface of a plane wave speaker unit with voice coils for left and right channels via a front space of predetermined volume, in which sounds of the left and right channels are not mixed in the front space by separating the front space into left and right.SOLUTION: A sound separation plate (rib) 45 is provided at the boundary part between left and right channels in a front space 35, a plane wave speaker unit 30 is fixed, facing passengers in a rear-seat, to a back face of a front-seat, a speaker grille 40 is arranged along an external surface of the back face of the front-seat, and the rib 45 is protruded from the speaker grille 40 towards an inside of the front space 35. Stereo feeling can be maintained since sounds of the left and right channels are separated in the front space 35 by the rib 45 and are not mixed to each other.
Abstract:
PROBLEM TO BE SOLVED: To provide a hybrid speaker which obtains powerful high pitch sounds and mid and low pitch sounds.SOLUTION: A hybrid speaker includes: first magnets which are arranged at a predetermined interval so that S poles and N poles face the same side; second magnets 2, each of which has volume smaller than that of the first magnet 1, one of or the multiple second magnets 2 which are arranged between the first magnets 1 contacting with the first magnets 1 so that their magnetic poles become opposite to those of the first magnets 1; a yoke 4 housing the first magnets 1 and the second magnets 2; voice coils 3, each of which is disposed so as to intersect a magnetic circuit between the first magnet 1 and the yoke 4; a diaphragm 6 where the voice coils 3 are fixed on one surface; a frame 5 where the diaphragm 6 is fixed at a peripheral part of the surface of the diaphragm 6 to which the voice coils 3 are fixed; and plate springs 7 which elastically support the yoke 4 to the frame 5 on a surface of the frame 5 which is opposite to the side where the diaphragm 6 is fixed.
Abstract:
PROBLEM TO BE SOLVED: To provide an oncoming vehicle warning system for surely communicating a warning even to a vehicle under high speed traveling, and for reducing a noise pollution to neighborhoods.SOLUTION: The oncoming vehicle warning system includes: a plane sound source speaker 51 installed at the upper part of the center of a road lane for emitting a plane wave obliquely downward toward a vehicle traveling on a road lane; a speed sensor 52 for measuring the speed of a vehicle traveling toward the plane sound source speaker 51 on the road lane; a control board 55 and an amplifier 56 for generating a voice signal, and for inputting the voice signal to the plane sound source speaker; and the control board 55 to which the measurement result of the speed sensor 52 is input for, when the vehicle speed is a predetermined speed or more, driving the control board 55 to make the plane sound source speaker 51 sound.
Abstract:
PROBLEM TO BE SOLVED: To provide a linear sound source loudspeaker effectively generating cylindrical waves, and to provide an audio/image display including the same. SOLUTION: The linear sound source loudspeaker includes: three or more magnets arranged on a line; a diaphragm arranged to extend along the arrangement direction of the magnets and face one-side magnetic poles of the magnets; yokes provided for the respective magnets, abutting on the other side magnetic poles of the magnets, and bent to surround the magnets toward the diaphragm; a frame for holding the magnets and the yokes and supporting the diaphragm in an edge part; and three or more voice coils arranged corresponding to the respective magnets, and fixed to a surface of the diaphragm on the side facing the magnets to interlink with magnetic flux formed by the magnets and the yokes. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a flat speaker excellent in reproducibility of a high-pitch tone and a low-pitch tone. SOLUTION: The flat speaker includes a substrate having a flat shape of a higher-order number curved shape which is represented by formula: r i =|x| i +|y| i on an xy coordinate, by using the center point as the origin; and a vibration means provided on one surface of the substrate to make the substrate vibrate. In the formula, r is radius, and i is a number in a range of 5-7. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation:要解决的问题:提供一种具有优异的高音调和低音调的再现性的平板扬声器。 解决方案:平板扬声器包括具有高次数弯曲形状的平坦形状的基板,其由下式表示:r i SP> +¾y¾ 通过使用中心点作为原点,在xy坐标上 i SP> 以及设置在基板的一个表面上以使基板振动的振动装置。 在公式中,r为半径,i为5-7范围内的数。 版权所有(C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a flat panel loudspeaker appropriately available for a thin-shape audio/image display and an audio/image display including the flat panel loudspeaker. SOLUTION: The flat panel loudspeaker includes:a plate-like diaphragm 1; a group of magnets 2 disposed in one line in such a way that two neighboring magnetic poles 2S and 2N become opposite to each other; a plurality of voice coils 3 arrayed along an array direction of the magnets 2 and formed on surfaces of the diaphragm 1 opposite to the magnetic poles 2S and 2N in such a way that the magnetic flux of the voice coils can cross the magnetic poles 2S and 2N; a yoke 4 which is abutted on the other of the magnetic poles 2S and 2N in the magnets 2 and in which a pair of side edges 4A along the array direction of the magnets 2 are bent toward the diaphragm 1; a frame 5 supporting the diaphragm 1 at an edge of the diaphragm 1 and accommodating the magnets 2 and the yoke 4; a speaker supporting member 6 to which the frame 5 is fixed; and an elastic member 7 provided between the speaker supporting member 6 and the yoke 4. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To simplify a manufacturing process. SOLUTION: Each magnet 12 is disposed between projections 100 on a bottom surface 14A of a yoke 14 so as to be located at a predetermined position. Furthermore, a magnetic pole face of each magnet 12 is adsorbed on the bottom surface 14A with a magnetic force so as to be fixed. Therefore, when performing recycling work after collecting a flat speaker 10 from the market, the magnetic 12 can be easily detached. Moreover, it is not necessary to remove adhesives left on the magnets 12 and the yoke 14, either. Namely, disassembly of the magnets 12 and the yoke 14 is facilitated. In such a case, since no adhesive is stuck, the yoke 14 is melted and can also be easily recycled as metal row materials. Furthermore, since it is enough only to dispose each magnet 12 between the projections 100 on the bottom surface 14A of the yoke 14, manufacturing steps are simplified. Moreover, since it is not necessary to leave the magnets and the yoke until the adhesives are hardened, the manufacturing time is shortened. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a composite speaker which can obtain a voice output larger than a prior art plate or planar speaker when voice signals having the same intensity are input. SOLUTION: The composite speaker includes a single magnet or a plurality of magnets arranged to be spaced at a predetermined interval from each other, a yoke forming a magnetic circuit having a magnetic gap between the magnets, voice coils each arranged in each gap between the magnets and the yoke to be intersected with the magnetic circuit, a diaphragm with one surface fixed to the voice coils, a frame for supporting the diaphragm at the peripheral edge of the diaphragm and accommodating the magnets and the yoke, a speaker base for fixing the frame at one side opposed to the diaphragm supporting side for the frame, and a phase rotational member provided between the speaker base and the yoke as an elastic member. A voice is issued from both of the diaphragm and the speaker base. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce weight variation of a vibrating surface by eliminating the need of soldering conducting wire or the like to the vibrating surface. SOLUTION: To feed the power from an external terminal 300 to each coil 56 of the vibrating surface 54 of this vibrating diaphragm 50, ribbon leads 104 and 105 of an extending part 100 of the vibrating diaphragm 50 are curved, pressed and connected to the external terminal 300 of a yoke 14. Thus, a manufacturing processing is simplified. In addition, the weight of the vibrating surface 54 is uniformly distributed, and solder does not adhere along the wire. Since there is little influence on the vibrations of the vibrating surface 54, sound quality is improved. COPYRIGHT: (C)2008,JPO&INPIT