A seat located in a cabin of a motor vehicle includes a seat back and a layer of radiant material embedded in the seat back. The radiant material directs heat to one or more occupants residing in a rear region of the cabin in the motor vehicle.

A vehicle seat includes a headrest, a seat back to which the headrest is attached, and a seat cushion connected to the seat back. The headrest includes pillar frames attached to the seat back, a core member that includes a pouring passage penetrating from one end to the other end, a cover that covers the core member and a part of the pillar frames, and a cushion member that is formed in a gap between the outer surface of the core member and the inner surface of the cover and inside the pouring passage. The pouring passage extends in a first direction from the one end of the core member to reach a predetermined position, extends in a second direction from the predetermined position to reach the other end, and includes a bent part at the predetermined position.

A vehicle seat includes a headrest, a seat back to which the headrest is attached, and a seat cushion connected to the seat back. The headrest includes pillar frames attached to the seat back, a core member that includes a pouring passage penetrating from one end to the other end, a cover that covers the core member and a part of the pillar frames, and a cushion member that is formed in a gap between the outer surface of the core member and the inner surface of the cover and inside the pouring passage. The pouring passage extends in a first direction from the one end of the core member to reach a predetermined position, extends in a second direction from the predetermined position to reach the other end, and includes a bent part at the predetermined position.

A system of optimizing an activation degree of an occupant of a vehicle, the system including: a speaker configured to play music for the occupant; and a controller configured to: determine whether an activation degree detected by an detector is in an appropriate state set in advance; and actuate the speaker to play music when determined that the activation degree of the occupant is not in the appropriate state, the music being selected in advance, being unique to the occupant, arousing pleasant emotion of the occupant, and being high tempo music having a tempo equal to or higher than a predetermined tempo or low tempo music having a tempo equal to or lower than a predetermined tempo.

An active road noise control system and method for a vehicle includes generating a microphone sense signal representative of road noise occurring in or at a wheel well of the vehicle, and iteratively and adaptively processing the microphone sense signal to provide a noise reducing signal. The system and method further include generating from the noise reducing signal with a headrest loudspeaker arrangement disposed in a headrest in an interior of the vehicle, noise reducing sound at a listening position in the interior of the vehicle.

An active road noise control system and method for a vehicle includes generating a microphone sense signal representative of road noise occurring in or at a wheel well of the vehicle, and iteratively and adaptively processing the microphone sense signal to provide a noise reducing signal. The system and method further include generating from the noise reducing signal with a headrest loudspeaker arrangement disposed in a headrest in an interior of the vehicle, noise reducing sound at a listening position in the interior of the vehicle.

There is provided a sound pickup device capable of satisfactorily picking up sound from a seated person side.

A sound pickup device 1 includes a headrest 11 which is provided with an opening 29 on a seating surface 11a side, and has a recess 25 formed in the opening 29, and two or more sound pickup means, a first sound pickup means 31 and a second sound pickup means 32 are disposed in the recess 25 of the headrest 11, and the first sound pickup means 31 and the second sound pickup means 32 are disposed so that distances to the first sound pickup means 31 and the second sound pickup means 32 from a portion, closest to the seating surface 11a, of the opening 29 of the headrest 11 are different from each other.

There is provided a sound pickup device capable of satisfactorily picking up sound from a seated person side.

A sound pickup device 1 includes a headrest 11 which is provided with an opening 29 on a seating surface 11a side, and has a recess 25 formed in the opening 29, and two or more sound pickup means, a first sound pickup means 31 and a second sound pickup means 32 are disposed in the recess 25 of the headrest 11, and the first sound pickup means 31 and the second sound pickup means 32 are disposed so that distances to the first sound pickup means 31 and the second sound pickup means 32 from a portion, closest to the seating surface 11a, of the opening 29 of the headrest 11 are different from each other.

The technology described in this document can be embodied in a vehicle seat that includes a seat headrest portion for supporting the head of an occupant, and a seat backrest portion for supporting the back of the occupant in a seated position. The backrest portion includes an enclosure for receiving at least a portion of an acoustic transducer. The vehicle seat also includes an acoustic channel having a first end that is configured to be fitted around a driver of the acoustic transducer in an acoustically sealed configuration, and a second end. The second end is opposite the first end and disposed at a location closer to the seat headrest portion than the seat backrest portion. The acoustic channel is configured to radiate acoustic energy from the acoustic transducer through the second end.

The technology described in this document can be embodied in a vehicle seat that includes a seat headrest portion for supporting the head of an occupant, and a seat backrest portion for supporting the back of the occupant in a seated position. The backrest portion includes an enclosure for receiving at least a portion of an acoustic transducer. The vehicle seat also includes an acoustic channel having a first end that is configured to be fitted around a driver of the acoustic transducer in an acoustically sealed configuration, and a second end. The second end is opposite the first end and disposed at a location closer to the seat headrest portion than the seat backrest portion. The acoustic channel is configured to radiate acoustic energy from the acoustic transducer through the second end.