3.1.1. Mobile phones
Mobile phones offer AR, voice interaction, and a web service client.
When the user uses the AR-QAS to read an advertising flyer,
the mobile phone can present a 3D object that speaks (e.g., a narrator)
based on an AR technique. The user can touch the narrator
on the screen and pose a question. The narrator can then answer
the question through speech based on text-to-speech technology.
The functions of AR, voice interaction, and a web service client
are presented in the following sections.