iPhone的生物辨識功能

手機的功能愈來愈強大，現在幾乎每個3G手機都有照相功能、能當記事本用、能傳送e-mail，因此，如何確保手機的隱私，就變成一個重要的議題。
在電子設備內建生物感測器做為身份識別，已不是新技術，如指紋辨識、臉部辨識、虹膜辨識、語音辨識等。
Apple則開發一個在iPhone嵌入心跳感測器，以識別手機持有者身份的技術，不需額外的操作動作和步驟，當使用者將iPhone拿在手上，iPhone的心跳感測器將檢測使用者的心臟節律，並驗證是否為手機擁有者。

20100113950
Title:Seamlessly Embedded Heart Rate Monitor
Filing Date:2009.1.23.
Application Date:2010.5.6.
Abstract:
This is directed to an electronic device having an integrated sensor for detecting a user's cardiac activity and cardiac electrical signals. The electronic device can include a heart sensor having several leads for detecting a user's cardiac signals. The leads can be coupled to interior surfaces of the electronic device housing to hide the sensor from view, such that electrical signals generated by the user can be transmitted from the user's skin through the electronic device housing to the leads. In some embodiments, the leads can be coupled to pads placed on the exterior of the housing. The pads and housing can be finished to ensure that the pads are not visibly or haptically distinguishable on the device, thus improving the aesthetic qualities of the device. Using the detected signals, the electronic device can identify or authenticate the user and perform an operation based on the identity of the user. In some embodiments, the electronic device can determine the user's mood from the cardiac signals and provide data related to the user's mood.