An ultrasonic transducer includes a cylindrical cap member having a bottom. The video processor includes an on-screen display module for selectively generating OSD data that is capable of being mixed into the normal video data. The film is constrained by the mount, or by the mount and an auditory element. Methods of forming the above-described transistor are also provided. The first one-way clutch is configured to transmit rotation of the first driven gear to the drive shaft when the vehicle travels in one direction, from among forward and backward, and the second one-way clutch is configured to transmit rotation of the second driven gear to the drive shaft when the vehicle travels in the other direction, from among forward and backward. In another embodiment, the catalytic layer may be deposited over a barrier layer.