发明名称 Digital signature of changing signals using feature extraction
摘要 In one embodiment, a signal transmission authentication apparatus includes an input operable to receive a changing signal, a first extractor operable to extract first phoneme data from the received changing signal, a first generator including logic operable to generate first data representative of the extracted first phoneme data, a first output operable to communicate output data corresponding to the received changing signal and the first data from an associated transmitter to an associated receiver, a second extractor associated with the receiver including logic operable to extract second phoneme data from the received output data via the receiver and regenerate the first phoneme data from the received first data, a comparator including logic operable to generate a comparison signal in accordance with a comparison of the first and second phoneme data, and a second output operable to generate a signal corresponding to authenticity of the received changing signal in accordance with an output of the comparator.
申请公布号 US8280052(B2) 申请公布日期 2012.10.02
申请号 US20090352697 申请日期 2009.01.13
申请人 CHEN CHIN-JU;LEE ERIC HENG CHIH;KUHLKE MATTHEW R.;HUGG ETHAN;RAMALHO MICHAEL A.;CISCO TECHNOLOGY, INC. 发明人 CHEN CHIN-JU;LEE ERIC HENG CHIH;KUHLKE MATTHEW R.;HUGG ETHAN;RAMALHO MICHAEL A.
分类号 H04N7/167 主分类号 H04N7/167
代理机构 代理人
主权项
地址