发明名称 |
Speed limit display in a vehicle |
摘要 |
A method and apparatus for reporting a posted speed limit to the driver of a vehicle is disclosed. The position of the vehicle is determined using a GPS receiver or triangulation of cellular telephone signals. The position is used to retrieve speed limit or other information from a database. The information is then reported to the driver. A technique is also disclosed for comparing the actual speed of the vehicle with the posted speed limit and issuing a warning to the driver when the posted speed limit is exceeded.
|
申请公布号 |
US6515596(B2) |
申请公布日期 |
2003.02.04 |
申请号 |
US20010801606 |
申请日期 |
2001.03.08 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
AWADA FAISAL M. |
分类号 |
G08G1/0967;(IPC1-7):G08G1/09 |
主分类号 |
G08G1/0967 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|