发明名称 |
Systems and methods for providing alerts to a navigation device |
摘要 |
A navigation device, comprising a processor and one of a visual output device and an audio output device in communication with the processor. The processor calculates a geographic position of the device and provides one of a visual alert via the visual output device and an audio alert via the audio output device when the geographic position of the device approaches a predetermined geographic position.
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申请公布号 |
US6856902(B1) |
申请公布日期 |
2005.02.15 |
申请号 |
US20020194691 |
申请日期 |
2002.07.12 |
申请人 |
BELLSOUTH INTELLECTUAL PROPERTY CORPORATION |
发明人 |
MITCHEM MATTHEW TODD |
分类号 |
G01C21/36;(IPC1-7):G06F19/00;G06F7/00;G01C21/28 |
主分类号 |
G01C21/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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