Mojo66 writes: A company that makes specialist talking tablet computers for speech-disabled children has mounted a patent lawsuit which seems set to kill off an iPad app that does the same thing for a tenth of the price. Prentke Romich's Minspeak touchscreen devices enable mute children to communicate through a speech synthesiser controlled by an on-screen keyboard of symbols. Kids hit buttons to string together sentences. Prentke says a dynamic keyboard of symbols and the ability to redefine these keys have been patented — and Speak For Yourself allegedly violates these patents.
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