Torque sensor detects torque of steering shaft formed by first and second shafts which are connected through torsion bar. The addersubtractors and the shifter are configured to obtain a first calculation result representing a pixel value of a target pixel included in image data multiplied by a first filter coefficient. The first level of logic circuitry comprises a plurality of adders and receives the input signals and generates three intermediate terms T0, T1, and T2. An acoustically transmissive adhesive secures a first portion of the transducer to the substrate.