An air conditioning device for a vehicle seat, the air conditioning device includes: at least one flow generator to generate an air flow; at least one air inlet opening fluidically connected to a flow inlet of the flow generator to draw in air to be temperature-controlled; at least one air outlet opening fluidically connected to a flow outlet of the flow generator to eject the temperature-controlled air; and a temperature-control device configured to control a temperature of the air drawn in through the at least one air inlet opening prior to the air being ejected from the at least one air outlet opening; the at least one air inlet opening and the at least one air outlet opening are arranged next to one another.

A headrest structure is provided and includes a body and two supporting rods. The body includes a covering cushion and an automated external defibrillator (AED). The AED is enclosed by the covering cushion. Each of the supporting rods includes a linking end and a combining end opposite to the linking end, and each of the supporting rods is connected to the body with the linking end so as to support the body. Based on this, the AED is assembled in the body to improve the applicability of the AED, so that patients experiencing cardiac arrest can be treated properly and instantly.

Disclosed are a flexible vibration cushion and a method of controlling the same. The flexible vibration cushion may include a cover member, a first soft filler material filled in the cover member; and a vibration generation device including components made of a soft material and disposed in the soft filler. The vibration generation device is configured to generate vibration as an electrostatic force is repeatedly generated and released. The vibration generation device may be applied in a vehicle part, e.g., headrest, thereby minimizing the foreign body sensation acting on the user’s skin while delivering soft and various senses of vibrations to the user.

Disclosed are a flexible vibration cushion and a method of controlling the same. The flexible vibration cushion may include a cover member, a first soft filler material filled in the cover member; and a vibration generation device including components made of a soft material and disposed in the soft filler. The vibration generation device is configured to generate vibration as an electrostatic force is repeatedly generated and released. The vibration generation device may be applied in a vehicle part, e.g., headrest, thereby minimizing the foreign body sensation acting on the user’s skin while delivering soft and various senses of vibrations to the user.

To enable an output sound of a speaker unit to be output as a surface sound source in a limited space. A three-dimensional knitted fabric is provided at a position substantially facing speaker units while being given tension in a surface direction. Since the tension is applied, a pair of ground knitted fabrics constituting the three-dimensional knitted fabric and a connecting yarn extending back and forth between the ground knitted fabrics vibrate due to their elastic action. In particular, string vibration is generated in the connecting yarn. Due to this vibration, output sounds of the speaker units are propagated in the surface direction of the three-dimensional knitted fabric, and as a result, the three-dimensional knitted fabric propagates and radiates acoustic waves of a surface sound source.

The present invention relates to a chair including a multi-channel sound system, and more particularly, to a chair including a multi-channel sound system capable of providing a sense of space and a three-dimensional effect to a user who sits in the chair through sounds output from a plurality of channels.

A device for ventilating the occupant of a vehicle seat, comprising an air inlet receiving air from a ventilation member, and comprising a first duct integrated at least in part into the backrest of the seat, a second duct integrated into a headrest mounted on the seat and supplying at least one air outlet integrated into the headrest and expelling air coming from the ventilation member, the second duct and first duct being connected by a leak tight sliding connection.

An infection preventing device includes air barrier forming units that include an air inlet for taking in air from a rear in a front-rear direction, an air purification mechanism for creating clean air by purifying the air taken in from the air inlet, and an air outlet for blowing the clean air toward the front in the front-rear direction, and are capable of blowing out the clean air from the air outlet in the form of layer perpendicular to the left-right direction. The air barrier forming units provided on the seats adjacent in the front-rear direction face in the front-rear direction, and it is configured that air including clean air blown out of the air outlet of the rear air barrier forming unit can be taken in by the air inlet of the front air barrier forming unit.

The technology described in this document can be embodied in an acoustic enclosure for a speaker system disposed in a portion of a vehicle seat. The acoustic enclosure includes a rigid plate configured to be attached to a frame, a first section, and a second section. The rigid plate configured to support a speaker disposed in part within the acoustic enclosure. The first section is constructed from expanded resin, and disposed in contact with the rigid plate. The second section is disposed in contact with the first section, between the second section and the rigid plate. The first and second section together define a housing of the acoustic enclosure that includes at least one cavity configured to accommodate a portion of the speaker.

Active noise cancellation may be provided by a variety of systems, methods and techniques. General aspects, for example, include an active noise cancellation system, a controller for an active noise cancellation system, and/or a method of generating an anti-noise signal. In one example aspect, an active noise cancellation system for an aircraft In-flight entertainment system may include at least one input device, a processing means, and an output. The input device may be associated with a seat on the aircraft and adapted to receive an input representative of an ambient noise in the vicinity of the seat. The processing means may be adapted to process the input to produce an output signal adapted to reduce the ambient noise in volume associated with the seat. The output may be adapted to transmit an output signal to at least one driver, which is adapted to transmit the output signal to a user.