A seat for a vehicle includes support links enabling a rotating motion and a sliding motion between a seat frame and seat rails, the support links being mounted so that the seat may be rotated in the forward and rearward directions as in a seesaw motion about a shaft of the vehicle in a width direction of the vehicle, so as to easily implement a facing mode posture, in which passengers sit facing each other, a relaxed comfort posture, etc.

Various implementations include seats and related loudspeakers. In particular cases, a seat includes: a seat headrest portion; a seat backrest portion; and a loudspeaker assembly. The loudspeaker assembly includes at least one driver for generating an acoustic output; and an acoustic exit fixed in the seat backrest portion and angled to provide the acoustic output to a location below a nominal ear position of an occupant of the seat, wherein a firing angle of the at least one driver provides the acoustic output to achieve a consistent frequency response across a range of positions deviating from the nominal ear position.

Various implementations include seats and related loudspeakers. In particular cases, a seat includes: a seat headrest portion; a seat backrest portion; and a loudspeaker assembly. The loudspeaker assembly includes at least one driver for generating an acoustic output; and an acoustic exit fixed in the seat backrest portion and angled to provide the acoustic output to a location below a nominal ear position of an occupant of the seat, wherein a firing angle of the at least one driver provides the acoustic output to achieve a consistent frequency response across a range of positions deviating from the nominal ear position.

The present invention relates to systems, methods, and apparatus that facilitate exercise in vehicles. In particular, the present invention provides active exercise in passenger and navigation areas in vehicles by incorporating force sensors in the environment surrounding the passenger and/or navigator in the vehicle. The present invention applies the principles of isometric training and interacts with a remote or on-board computer platform to track, measure and provide instruction to the passage and/or navigator engaged in such isometric training.

Disclosed herein are a cold/warm headrest for a vehicle and a method of controlling operation thereof. It is possible to provide cold air to an occipital region, a head, and a face of a seated occupant, and to provide warmth to a neck and shoulders of the occupant, in which the trapezius muscles are located along with peripheral nerves.

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; 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; and a temperature sensor configured to detect a temperature of the air drawn into the at least one air inlet opening and to adapt a heating power of the temperature-control device to the detected temperature of the drawn-in air.

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; 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; and a temperature sensor configured to detect a temperature of the air drawn into the at least one air inlet opening and to adapt a heating power of the temperature-control device to the detected temperature of the drawn-in air.

A backrest for a vehicle seat may have a backrest part, a head restraint part and an acoustic arrangement. The acoustic arrangement is arranged above the backrest part and may have at least one central loudspeaker and at least two side loudspeakers. The central loudspeaker may be built into the head restraint part and each of the at least two side loudspeakers may be arranged on a support. A vehicle seat with the backrest is also provided.

A backrest for a vehicle seat may have a backrest part, a head restraint part and an acoustic arrangement. The acoustic arrangement is arranged above the backrest part and may have at least one central loudspeaker and at least two side loudspeakers. The central loudspeaker may be built into the head restraint part and each of the at least two side loudspeakers may be arranged on a support. A vehicle seat with the backrest is also provided.

An active noise cancellation system (1) for cancelling environment noise perceived by a driver or passenger seated in a seat (3) mounted in a cabin of a vehicle, in combination with said seat, the seat comprising a seat cushion (19), a seat back (21) coupled to the seat cushion at a bottom end and extending upwards to a seat shoulder (23), and a headrest (22) coupled to the seat back, extending upwardly from the seat shoulder, the active noise cancellation system comprising an active noise cancellation circuit (ANC) (30), a plurality of microphones (10) mounted in the headrest and connected electrically to the ANC, and a plurality of speakers (16) mounted in the seat and connected electrically to the ANC circuit. The plurality of microphones comprises at least one first microphone mounted on a right side of the headrest and at least one second microphone mounted on a left side of the headrest, and the plurality of speakers comprises at least one first speaker mounted in the seat shoulder on a left side and at least one second speaker mounted in the seat shoulder on a right side, the right speaker configured to generate a noise cancellation sound from a noise signal picked up by the right microphone processed by the ANC circuit and the left speaker configured to generate a noise cancellation sound from a noise signal picked up by the left microphone processed by the ANC circuit.