Obviousness

I cannot perform an obviousness analysis under 35 U.S.C. § 103 for US patent 9055254 as requested.

The provided patent text and the previously generated summary include "Prior art keywords: program, screen, channel, user, application" and a "Prior art date: 2012-08-17." However, there is no list of specific prior art documents (e.g., other patents, publications) cited within the provided text.

To conduct an obviousness analysis, it is essential to have identified prior art references to combine and evaluate against the claims of US9055254. Without these specific references, I cannot identify combinations that would render the claims obvious or explain the motivation a person having ordinary skill in the art would have had to combine them.