Abstract: A video signal processing device includes a selection/output unit that receives a video signal, sequentially selects and outputs a sequence of image data pieces of split image regions, a CRC calculation circuit that executes CRC calculation on a sequence of pixel data pieces outputted from the selection/output unit, a calculation result sorting unit that generates test values corresponding to the split image regions based on a CRC calculation result, a freeze determination unit that, based on the test values corresponding to one frame and the test values corresponding to another frame, determines whether a change has occurred in the video of the split image regions between the frames, and a video freeze detection unit that, by determining whether or not a state where no change has occurred in the video is continuing over a prescribed number of frame periods, detects whether or not the video is frozen.

Abstract: A vehicle seat 1 includes a seat unit, a lift-up unit and a long-sliding unit. The lift-up unit moves the seat unit between an interior and an exterior of a vehicle via a door opening portion that corresponds to a passenger seat position. The long-sliding unit moves the seat unit between a driver's seat position and the fellow passenger seat position. The lift-up unit moves the seat unit downward when the seat unit is positioned at the driver's seat position, so that the seat unit is located at a suitable position for driving.

Abstract: A vehicle seat 1 includes a seat unit 10, a lift-up unit 50 and a long-sliding unit 200. The lift-up unit 50 moves the seat unit 10 between interior and exterior of a vehicle via a door opening portion D2 that corresponds to a passenger seat position. The long-sliding unit 200 moves the seat unit 10 between a driver's seat position and the fellow passenger seat position. The lift-up unit 50 moves the seat unit 10 downward when the seat unit 10 is positioned at the driver's seat position, so that the seat unit 10 is located at a suitable position for driving.

Abstract: A vehicle seat 1 includes a seat unit 10, a lift-up unit 50 and a long-sliding unit 200. The lift-up unit 50 moves the seat unit 10 between interior and exterior of a vehicle via a door opening portion D2 that corresponds to a passenger seat position. The long-sliding unit 200 moves the seat unit 10 between a driver's seat position and the fellow passenger seat position. The lift-up unit 50 moves the seat unit 10 downward when the seat unit 10 is positioned at the driver's seat position, so that the seat unit 10 is located at a suitable position for driving.

Abstract: A longitudinal support base 30 is provided with a rotating support base 10 that can be slide in a longitudinal direction of the vehicle. A seat body is placed on the rotating support base 10 via a rotary disc 13 so as to rotate. The longitudinal support base 30 is provided with an intermediate gear 22 that is engaged with a rack 21 extending in the longitudinal direction of the vehicle seat. The seat body 2 side is provided with a pinion gear 24 that is engaged with the intermediate gear 11. The rotary disc 13 is rotated by means of a driving force of an electric motor 41. Thus, when the electric motor 41 is rotated, the seat body 2 rotates and slides in the longitudinal direction.

Abstract: With respect to a rotating seat for a vehicle, for example, for the elderly or the handicapped, the known art requires two operations of moving a seat body forward and rotating it to a door opening, and is thus poor in usability. Further, if the seat is positioned to the front such that the seat can be rotated at that position, the space close to occupant's feet is sacrificed. It is, accordingly, an object of the present invention to provide a rotating vehicle seat having excellent usability without sacrificing the space close to occupant's feet. A rotating vehicle seat of the present invention includes a rotating support base 10 for rotatably supporting a seat body 2, a longitudinal support base for supporting and moving the rotating support base in a longitudinal direction of a vehicle, and a coupling arrangement means 6, 38 disposed between the seat body 2 and the longitudinal support base for coupling the rotational movement and the longitudinal movement of the seat body.

Abstract: A rotating vehicle seat allows space close to an occupant's feet to be used efficiently. The rotating seat has a seat body 2 supported by a rotary disc 13. The rotary disc 13 is mounted at a position that is displaced to a door opening side with respect to a center HP of a seat cushion. A pinion gear 6, an intermediate gear 36 and a rack 38 engage each other so that the rotational movement and the longitudinal movement of the seat body 2 are coupled to each other.

Abstract: With respect to a rotating seat for a vehicle, for example, for the elderly or the handicapped, the known art requires two operations of moving a seat body forward and rotating it to a door opening, and is thus poor in usability. Further, if the seat is positioned to the front such that the seat can be rotated at that position, the space close to occupant's feet is sacrificed. It is, accordingly, an object of the present invention to provide a rotating vehicle seat having excellent usability without sacrificing the space close to occupant's feet. A rotating vehicle seat of the present invention includes a rotating support base 10 for rotatably supporting a seat body 2, a longitudinal support base for supporting and moving the rotating support base in a longitudinal direction of a vehicle, and coupling means 6, 38 disposed between the seat body 2 and the longitudinal support base for coupling the rotational movement and the longitudinal movement of the seat body.

Abstract: A low profile cab-front-engine truck is converted by utilizing a normal chassis frame and a normal cab designed for a cab-over-engine truck in which an engine is arranged adjacent to a front axle and in which the cab is arranged over the engine. The cab is shifted to a front lower position in front of the engine. The low profile truck includes a frame extension provided on the forward end portion of the chassis frame, a front mount provided on the frame extension, and a rear mount provided on the frame extension or the chassis frame. The cab is supported at the front lower position by the front and rear mounts.