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Embedding Data Signals In White Noise

Posted by timothy on from the literally-subliminal dept.

Anemophilous Coward writes "ZDNet has the following article which describes a company that 'has devised a method for sending wireless signals over ordinary audio speakers so that humans can't hear them. With this same technology, radio stations can unobtrusively transmit ads, Web site URLs, or information about music and artists to in-car cell phones.'" Here is some further reading about the company, Intrasonics.

2 of 239 comments (clear)

  1. Thank you, thank you... by GeneralEmergency · · Score: 1, Offtopic

    I'm here all week.
    .
    .

    --
    "A microprocessor... is a terrible thing to waste." --
    GeneralEmergency
  2. My poor neurotic cat... by RoadWarriorX · · Score: 1, Offtopic

    Last time my TV blast some uncomprehensible signal, my cat had nearly had a heart attack. For a while, I couldn't figure it out what was causing it!!

    Finally, I just gave up watching this horrible show...

    Now, my cat is on the road to recovery.

    --

    Coderz 4 Life