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《Smartwatches can now track your finger in mid-air using sonar 》

  • 来源专题：水声领域信息监测
  • 编译者： ioalib
  • 发布时间：2016-03-23

  • As mobile and wearable devices such as smartwatches grow smaller, it gets tougher for people to interact with screens the size of a matchbook.

    That could change with a new sonar technology developed by University of Washington computer scientists and electrical engineers that allows you to interact with mobile devices by writing or gesturing on any nearby surface — a tabletop, a sheet of paper or even in mid-air.

    FingerIO tracks fine-grained finger movements by turning a smartphone or smartwatch into an active sonar system using the device’s own microphones and speakers.

    Because sound waves travel through fabric and do not require a line of sight, users can even interact with a phone inside a front pocket or a smartwatch hidden under a sweater sleeve.

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    • 来源专题：水声领域信息监测
    • 编译者：ioalib
    • 发布时间：2016-11-10
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    • 来源专题：水声领域信息监测
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