Invention Grant
US07642925B2 Sensor drive control method and sensor-equipped radio terminal device
有权
传感器驱动控制方法和装有传感器的无线电终端设备
- Patent Title: Sensor drive control method and sensor-equipped radio terminal device
- Patent Title (中): 传感器驱动控制方法和装有传感器的无线电终端设备
-
Application No.: US11870760Application Date: 2007-10-11
-
Publication No.: US07642925B2Publication Date: 2010-01-05
- Inventor: Yoshihiro Wakisaka , Shunzo Yamashita , Toshiyuki Odaka , Norio Ohkubo
- Applicant: Yoshihiro Wakisaka , Shunzo Yamashita , Toshiyuki Odaka , Norio Ohkubo
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2004-331337 20041116
- Main IPC: G08B21/00
- IPC: G08B21/00
Abstract:
A sensor device wherein when a first sensor detects a detection object, the first sensor changes its output voltage level, and when the processor unit detects the change of the output voltage level of the first sensor as an interrupt signal, the drive voltage level of the first sensor is switched from the first signal level to the second signal level which is different from the first signal level and the drive voltage level of the second sensor is switched from the second signal level to the first signal level which is different from the second signal level.
Public/Granted literature
- US20080068194A1 SENSOR DRIVE CONTROL METHOD AND SENSOR-EQUIPPED RADIO TERMINAL DEVICE Public/Granted day:2008-03-20
Information query
