| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately calculate a signal intensity ratio. <P>SOLUTION: A signal processor 10 has a steering wheel sensor 11a for measuring a steering wheel signal between a steering wheel electrode arranged on a steering wheel of a vehicle and a reference electrode. The signal processor 10 further has a seat sensor 11b for measuring a seat signal between a seat electrode arranged on a seat on which a driver sits and the reference electrode. The signal processor 10 then specifies, from the steering wheel signal measured by the steering wheel sensor 11a, zones other than those including heart rate signals. The signal processor 10 calculates a signal intensity ratio between the steering wheel signal and the seat signal with respect to the predetermined zones among the steering wheel signals measured by the steering wheel sensor 11a and the seat signals measured by the seat sensor 11b. <P>COPYRIGHT: (C)2013,JPO&INPIT |
