Methods and apparatus for adaptive loop filtering in video coding are provided. In the method, it is detected that the communication from a first optical network device is lost. A front wall of the elongate housing faces a magnetized rotor rotated by a rotating object so that the rotational speed of the rotor is detected by the detector unit. Further, first press-fitted portions 11 are provided in the left and right sides of the connector housing so as to press-fit the first press-fitting portions of the metal fitting, and second press-fitted portions 22 are provided in the bottom surfaces of the left and right ends of the connector housing so as to press-fit the second press-fitting portions of the metal fitting. Thus it is possible to provide a vehicle seat device that includes a dynamic damper having a small number of components and a simple structure. The FIFO uses a multiplexer to switch between two or more strobes so that different data strobes may be used with the FIFO to strobe in the data.