Abstract: A wireless low-frequency medical treatment device having a sending section for sending various data for low-frequency medical treatment and a pulse applying section for receiving the above data, for generating a low-frequency pulse corresponding to the data and for applying the pulse on a living body, the device being characterized in that the pulse applying section comprises a plurality of pulse applying bodies to be pasted on the living body; a low-frequency pulse generating device for generating a low-frequency pulse to be supplied to the pulse applying bodies in accordance with data sent from the sending section; a detecting device for detecting that at least one of the pulse applying bodies comes off from the living body; a pulse stopping device for stopping generation of the low-frequency pulse when the detecting device detects that at least one of the pulse applying bodies comes off from the living body; and a pulse recovery device for increasing a potential of the low-frequency pulse gradually from a

Abstract: A wireless low-frequency medical treatment device having a sending section for sending data for low-frequency medical treatment and a pulse applying section for receiving the above data and applying a low-frequency pulse corresponding to the data on a living body, the device being characterized in that the sending section comprises a plurality of sending coils, whose axes cross each other in a space, and a sending coil driving circuit for supplying the sending coils with resonating currents having different phases, respectively, the currents indicating a signal corresponding to the data; and that the pulse applying section comprises a receiving coil for receiving the signal sent from the sending coils through electromagnetic induction.

Abstract: In processing a video signal reproduced from a track of a magnetic disc (10), if the reproduction video signal, from one track of the frame recorded on two adjacent tracks, is stored in a memory (34), then the control circuit (20) determines whether the memory (34) should be used as a field memory or a frame memory based on a field/frame discriminating signal reproduced from the reproduced track. Therefore, error which occurs when only one of the two tracks is erased, can be prevented.