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.
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 代理人
主权项
地址