Abstract: A speaker apparatus includes a pair of speakers and a connecting member. The pair of speakers is arranged in an interior of a structure protruding into an interior space of a vehicle. The pair of speakers has respective diaphragms facing the interior space of the vehicle and that are directed in opposite directions from each other. The pair of speakers has back surfaces that face each other. The connecting member inter-connects respective drivers of the pair of speakers and is connected to back surface sides of the drivers.

Abstract: A speaker includes a first vibrator, a first driving unit, a second vibrator, a second driving unit and a supporting unit. The first vibrator is connected to a diaphragm, which vibrates, thereby emitting sound. The first driving unit vibrates the first vibrator, thereby vibrating the diaphragm. The second vibrator is connected to a weight member. The second driving unit is connected to the opposite side of the first driving unit to the first vibrator, and vibrates the second vibrator on the same vibration axis as the vibration axis of the first vibrator, thereby vibrating the weight member. The supporting unit supports a coupled body, configured by joining the second vibrator and the weight member, at two or more portions in the direction of the vibration axis.

Abstract: A speaker includes a first vibrator, a first driving unit, a second vibrator, a second driving unit and a supporting unit. The first vibrator is connected to a diaphragm, which vibrates, thereby emitting sound. The first driving unit vibrates the first vibrator, thereby vibrating the diaphragm. The second vibrator is connected to a weight member. The second driving unit is connected to the opposite side of the first driving unit to the first vibrator, and vibrates the second vibrator on the same vibration axis as the vibration axis of the first vibrator, thereby vibrating the weight member. The supporting unit supports a coupled body, configured by joining the second vibrator and the weight member, at two or more portions in the direction of the vibration axis.

Abstract: A speaker device having a speaker section firmly fixed to a stand section so the orientation of the speaker section relative to the stand section can be easily adjusted. The speaker device includes a speaker section, a stand section, and a fastening section for fastening the speaker section and the stand section to each other. The speaker section includes an engaging groove section, and a curved, contact receiving section which allows the angle of the speaker section relative to the stand section to be adjusted. The fastening section includes an engaging section engaging with the engaging groove section, and a screw thread section connected to the engaging section and engaging with a screw thread hole formed in the stand section. The fixation of the speaker section to the stand section can be adjusted by rotating the screw thread section to engage the screw thread section with the hole.

Abstract: A speaker device, wherein vibration of a magnetic circuit section is suppressed with a magnetic influence on the magnetic circuit section suppressed. A speaker device having a vibration section and generating an audio sound by vibration of the vibration section is provided with a magnetic circuit section for forming a magnetic field for vibrating the vibration section and also with a weight section fixed to the magnetic circuit section and suppressing vibration of the magnetic circuit section subjected to reaction force caused by vibration of the vibration section. The weight section is fixed to the magnetic circuit section through a joint section for joining the magnetic circuit section and the weight section to each other, and this forms between the magnetic circuit section and the weight section a predetermined space for magnetically separating the magnetic circuit section and the weight section from each other.

Abstract: An object is to enhance workability in attachment in a sound generating apparatus that generates sound by vibrating a vibration plate with a vibrator while ensuring acoustic performance as good as that achieved by fastening with fine screw threads. Workability in attaching operation is improved while ensuring acoustic performance as good as that provided by fastening with fine screw threads, by providing first fixing portion that brings engagement portions into screw engagement with each other by rotation by a predetermined angle that can be attained by a user without taking his/her hand that holds a coupler off it and second fixing portion for fixing the coupler to a bracket so as to prevent the coupler from rotating relative to said bracket in a direction to loosen the engagement achieved by said first fixing portion.

Abstract: An object is to enhance workability in attachment in a sound generating apparatus that generates sound by vibrating a vibration plate with a vibrator while ensuring acoustic performance as good as that achieved by fastening with fine screw threads. Workability in attaching operation is improved while ensuring acoustic performance as good as that provided by fastening with fine screw threads, by providing first fixing portion that brings engagement portions into screw engagement with each other by rotation by a predetermined angle that can be attained by a user without taking his/her hand that holds a coupler off it and second fixing portion for fixing the coupler to a bracket so as to prevent the coupler from rotating relative to said bracket in a direction to loosen the engagement achieved by said first fixing portion.

Abstract: A speaker device, wherein vibration of a magnetic circuit section is suppressed with a magnetic influence on the magnetic circuit section suppressed. A speaker device having a vibration section and generating an audio sound by vibration of the vibration section is provided with a magnetic section for forming a magnetic field for vibrating the vibration section and also with a weight section fixed to the magnetic circuit section and suppressing vibration of the magnetic circuit section subjected to reaction force caused by vibration of the vibration section. The weight section is fixed to the magnetic circuit section through a joint section for joining the magnetic circuit section and the weight section to each other, and this forms between the magnetic circuit section and the weight section a predetermined space for magnetically separating the magnetic circuit section and the weight section from each other.

Abstract: The present invention is directed to providing a sound field reproduction system that can enhance the sound separation between the front and rear seats or left and right seats of a vehicle. The sound field reproduction system includes a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources, a narrow-directional speaker mounted on the front seat side of the vehicle, a speaker mounted on the rear seat side of the vehicle, and a signal processing unit for driving the narrow-directional speaker based on the first sound signal that has been processed according to frequency range, and for driving the speaker based on the second sound signal.

Abstract: A speaker device having a speaker section firmly fixed to a stand section so the orientation of the speaker section relative to the stand section can be easily adjusted. The speaker device includes a speaker section, a stand section, and a fastening section for fastening the speaker section and the stand section to each other. The speaker section includes an engaging groove section, and a curved, contact receiving section which allows the angle of the speaker section relative to the stand section to be adjusted. The fastening section includes an engaging section engaging with the engaging groove section, and a screw thread section connected to the engaging section and engaging with a screw thread hole formed in the stand section. The fixation of the speaker section to the stand section can be adjusted by rotating the screw thread section to engage the screw thread section with the hole.

Abstract: A flat speaker comprising a vibrating plate including a spiral voice coil, a lead portion extracted from the vice coil and reinforced by the reinforcing member, and an electric supply line; an edge portion supporting the vibrating plate; and a yoke, supporting the edge portion, on which the permanent magnet arranged to face the voice coil. The flat speaker 1 of the invention includes a vibrating membrane 2 of an insulating base film 3 with a spiral or meandering voice coil 4 formed on one or both faces thereof, a permanent magnet 5 arranged on corresponding location facing the voice coil 4; and a yoke 6 on which the permanent magnet 5 is arranged. The vibrating membrane 2 is avoided from hitting the permanent magnet by providing a perforated sheet on the back face of the yoke to control acoustic resistance.

Abstract: An object is to enhance workability in attachment in a sound generating apparatus that generates sound by vibrating a vibration plate with a vibrator while ensuring acoustic performance as good as that achieved by fastening with fine screw threads. Workability in attaching operation is improved while ensuring acoustic performance as good as that provided by fastening with fine screw threads, by providing first fixing means that brings engagement portions 31 and 41 into screw engagement with each other by rotation by a predetermined angle that can be attained by a user without taking his/her hand that holds a coupler 3 off it and second fixing means for fixing the coupler 3 to a bracket 4 so as to prevent the coupler 3 from rotating relative to said bracket 4 in a direction to loosen the engagement achieved by said first fixing means.

Abstract: The present invention is directed to providing a sound field reproduction system that can enhance the sound separation between the front and rear seats or left and right seats of a vehicle. The sound field reproduction system includes a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources, a narrow-directional speaker mounted on the front seat side of the vehicle, a speaker mounted on the rear seat side of the vehicle, and a signal processing unit for driving the narrow-directional speaker based on the first sound signal that has been processed according to frequency range, and for driving the speaker based on the second sound signal.

Abstract: A flat speaker comprising a vibrating plate including a spiral voice coil, a lead portion extracted from the vice coil and reinforced by the reinforcing member, and an electric supply line; an edge portion supporting the vibrating plate; and a yoke, supporting the edge portion, on which the permanent magnet arranged to face the voice coil. The flat speaker 1 of the invention includes a vibrating membrane 2 of an insulating base film 3 with a spiral or meandering voice coil 4 formed on one or both faces thereof, a permanent magnet 5 arranged on corresponding location facing the voice coil 4; and a yoke 6 on which the permanent magnet 5 is arranged. The vibrating membrane 2 is avoided from hitting the permanent magnet by providing a perforated sheet on the back face of the yoke to control acoustic resistance.