Apple is hard at work to deliver as many killer features as possible for the soon to be unveiled iOS 7, new functions of which will be seen via the upcoming iPhone 5S and the rumoured Apple phablet, the iPhone 6.

In a new set of patent filings by the tech giant, new exciting features that iOS devices will display were discovered by Apple Insider this week - all designed to provide premium entertainment experience packed from Apple gadgets.

In the first invention, Apple is developing a new set of protocol for "application interaction via multiple user interfaces," leading to the authorship of a powerful app that is capable of presenting "multiple two-way UI versions for different display devices."

The same software, the Apple patent said, comes with an interactive interface that allows the dynamic manipulation of data.

Obviously, the new technology improves on the existing AirPlay and when implemented will permit "users to navigate movies and music from a host device through an Apple TV via a remote control," Apple Insider said.

It would seem that Apple is introducing a gadget function previously seen in HTC One and Samsung's Galaxy S4 (remotely navigating through TV programs using a smartphone) but the tech giant is extending the benefits that can be drawn from the new application.

The patent, Apple said, can be deployed too to take control of productivity suites, browsers and games or virtually "any other type of software application that can be operated via a user interface."

Adding up to this purported iPhone 6 and iPhone 5S improvement is an underway effort for the handsets to consistently produce stereo sounds blared out in the appropriate channel regardless of the devices' orientation.

In a patent titled 'Orientation-based audio', Apple aims for iOS devices to automatically map speakers' location though the use of smart sensors, which already exist in Apple handsets, and an audio processing router that will "attempt to ensure that left and right channel audio outputs (whether front or back) are sent to speakers on the left and right sides of the device, respectively, given the device's current orientation."

During rotation or any other change of orientation, "the processor creates a new map of the device and redirects audio accordingly," Apple Insider said on its report.

Users will be able to program the customisation limits to their preferences like restricting the extent of the turns, say to only 90 degrees, added the same report.

While both of the patents were originally filed in 2011, it remains a big question if the new features will be part of the hotly-anticipated iOS 7 unveiling next month.

Nonetheless, quick patch updates for the mobile platform in the months ahead could allow their deployment in time for the iPhone 5S release date, which is believed to come September this year, and the iPhone 6 launch, set tentatively for June 2014.