发明授权
US07791457B2 Method and apparatus for an anti-theft system against radio relay attack in passive keyless entry/start systems
有权
无源无钥匙进入/启动系统中防盗系统的无线电中继攻击的方法和装置
- 专利标题： Method and apparatus for an anti-theft system against radio relay attack in passive keyless entry/start systems
- 专利标题（中）： 无源无钥匙进入/启动系统中防盗系统的无线电中继攻击的方法和装置
-
申请号： US11639915申请日： 2006-12-15
-
公开(公告)号： US07791457B2公开(公告)日： 2010-09-07
- 发明人: Riad Ghabra , Yi Luo , John Nantz , Ronald O. King
- 申请人： Riad Ghabra , Yi Luo , John Nantz , Ronald O. King
- 申请人地址： US MI Southfield
- 专利权人： Lear Corporation
- 当前专利权人： Lear Corporation
- 当前专利权人地址： US MI Southfield
- 代理机构： MacMillan, Sobanski & Todd, LLC
- 主分类号： B60R25/10
- IPC分类号： B60R25/10 ; G05B19/00 ; G05B23/00 ; G06F7/00 ; G06F7/04 ; G08B29/00 ; G08C19/00 ; H04B1/00 ; H04B3/00 ; H04Q1/00 ; H04Q9/00
摘要：
An apparatus and method is provided for identifying unauthorized access to a vehicle having a keyless-passive entry system. An interrogation signal is broadcast from a vehicle based transmission device. The interrogation signal includes a first pulse transmitted at a first amplitude and a second pulse transmitted at a second amplitude where the second amplitude is greater than the first amplitude by at least a predetermined difference threshold. The interrogation signal is received by a portable communication device. A determination is made whether the second amplitude of the second pulse is greater than the first amplitude of the first pulse by a predetermined difference threshold. A determination is made that the interrogation signal is an authorized interrogation signal in response to the determination that the interrogation signal includes the first pulse transmitted at the first amplitude following by the second pulse transmitted at the second amplitude where the second amplitude is greater than the first amplitude by at least a predetermined difference threshold.
公开/授权文献
信息查询
