Browse Prior Art Database

Card-Based Personal Identification System Disclosure Number: IPCOM000054530D
Original Publication Date: 1980-Feb-01
Included in the Prior Art Database: 2005-Feb-13

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Herbst, NM Liu, CN [+details]


For certain applications such as retail credit and gasoline charge cards, it is desirable to have a method of personal identification associated with the card to prevent fraudulent use. Others have suggested properties of the signature, but have not achieved practical systems because of performance problems. They have failed because they measured variable quantities such as stroke extremes, or used easily forged measurements such as gross timings of the pressure waveform. The methods of Herbst and Morrissey (1), relating to a method of using segmented acceleration patterns, and Herbst and Liu [2], an improvement on the above incorporating a pressure channel for better performance, have been shown practical and capable of very high accuracy personal identification.