Screen–smart device interaction: Difference between revisions

Revision as of 06:49, 9 May 2014

Revision as of 06:51, 9 May 2014

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The big screen shows an identifier of its computer network address. Often, the network is the Internet. The identifier might be in a barcode that is part of the image on the big screen. The mobile device scans the barcode, decodes it and queries a server. The server controls the big screen. When the server gets the query, it extracts the identifier of the big screen. The server can alter the mobile device screen and the big screen in a [[feedback loop]].

The user of the mobile device can by pickingpick buttons in theits web page causeto change the big screen to change. The mobile device functions as a [[remote control]]. The advantage is the decoupling of specific hardware requirements for the pair of the mobile device and the big screen. If the mobile device is a cellphone, it only needs a camera and wireless Internet access.

If the big screen shows a browser, then there are paired web pages. One for the small screen, one for the big screen. Microsoft calls this the "Companion Web". In general, the pages in the pair are different. The page for the big screen is essentially a digital poster. It does not need any buttons or selectable links. It can have large graphics. The large screen can be assumed to be on a wired connection, giving it large bandwidth. The small screen page is optimised for low bandwidth across a wireless connection.

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<ref>Green Valley Media - scans the QR code, his mobile device will open an HTML page that will ... control your designated digital Signage

[http://digisignz.com/remote-touch/] </ref>

<ref> Extra details in Wikia [http://qrcode-coding.wikia.com/wiki/Wiki_for_Coding_QR_Code_Mobile_Apps] </ref>

==References==