Title:
SENSOR DEVICE, SETTING DEVICE, READER AND COMMODITY CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP3579868
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To measure and correct output of individual signal processing circuits loaded with a radio function without specifying a controller.
SOLUTION: A child unit 2 is provided with a power supply part 21 for taking electromagnetic wave energy applied from the outside through a coil 20 to generate internal power supply without mounting a cell for operation, and on the basis of output of a sensor mounted in the child unit in a designated operation environment, a parent unit 1 decodes an allowable value set in each child unit and stores the same in a non-volatile memory 23. By this arrangement, each child unit is provided with a sensing circuit 24 loaded with a sensor, whereby the individual sensing circuits are corrected and a preset allowable value can be held in each child unit.
Inventors:
Shiro Kano
Application Number:
JP2000160690A
Publication Date:
October 20, 2004
Filing Date:
May 30, 2000
Export Citation:
Assignee:
YAMATAKE CORPORATION
International Classes:
G01K7/00; G01D1/18; G01D5/48; G01D18/00; (IPC1-7): G01D18/00; G01K7/00
Domestic Patent References:
| JP63042421A | ||||
| JP4221725A | ||||
| JP5322605A |
Foreign References:
| US4750197 | ||||
| US5659302 |
Attorney, Agent or Firm:
Koji Nagato