Title:
TRAVELING DISTANCE ODOMETER FOR VEHICLE
Document Type and Number:
Japanese Patent JP3867604
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make the illegal falsification of a stored traveling distance integrated value in a traveling distance odometer comprising an involatile memory storing the traveling distance integrated value.
SOLUTION: The traveling distance integrated value A of a vehicle is encrypted with a key code and stored in an EEPROM 60. As the traveling distance integrated value stored in the EEPROM 60 is encrypted with the key code, a falsifier cannot easily know an address storing the integrated value among the addresses of the EEPRROM 6 without decryption with the key code, even when the falsifier compares the traveling distance integrated value A displayed on a liquid crystal panel 40 with the storage contents of each address of the EEPROM 60, which makes it difficult for the falsifier to illegally falsify the traveling distance integrated value stored in the EEPROM 60 by rewriting the same to a smaller value.
More Like This:
| JP2005324709 | CYCLE COMPUTER |
| JPS594428 | [Title of the device] An inner structure operation device of a display |
| WO/2023/186009 | STEP COUNTING METHOD AND APPARATUS |
Inventors:
Ryoichi Nishikawa
Takashi Mizutani
Hirokazu Takagi
Takashi Mizutani
Hirokazu Takagi
Application Number:
JP2002088790A
Publication Date:
January 10, 2007
Filing Date:
March 27, 2002
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G01C22/00; B60K35/00; G07C5/00; B60R16/02; G06M3/12; (IPC1-7): G07C5/00; B60K35/00; B60R16/02; G01C22/00; G06M3/12
Domestic Patent References:
| JP2003207364A | ||||
| JP11325953A | ||||
| JP9115019A |
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Fumihiro Mizuno
Takahiro Miura
Fumihiro Mizuno