Invention Grant
US09411951B2 Non-numeric personal identification 有权
非数字个人识别

Non-numeric personal identification
Abstract:
Various methods and systems are provided for allowing a user to select a non-numeric PIN or password and use that to access content instead of a conventional numerical PIN. A series of visual, textual, and/or audio “digits” form the PIN, where each succeeding digit may be related to and/or further limit one or more of the preceding digits.
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