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Why Smartphone Manufacturers Should Add RotoView Tilt-Based Scrolling into their Customized Operating Systems

We created RotoView with the idea to make the mobile user interface more complete and intuitive:

• RotoView enables users of smartphones, digital players, game systems or GPS devices to navigate a large virtual display on their device's small screen using only one hand. No switches or buttons to push while scrolling.
• RotoView technology perfectly complements modern multi-touch screen technology. Use RotoView to navigate the screen, then use the touch screen for user commands and to activate links.
• RotoView gives users of gaming systems the ability to "tilt" their way around any virtual world, providing a more rewarding gaming experience.
• RotoView can be simply implemented using the built-in accelerometers or gyroscopes. The RotoView software algorithm "improves" upon sensor measurements, so solid-state accelerometer or gyroscope sensor technology does not need to be precise.
  

The smartphone software is generally divided into the customized operating system (OS) that is provided by the phone's manufacturer, and a collection of various apps, provided by independent app developers. During the early development of tilt-based browsing technology (like RotoView), app developers were required to include their own tilt-based scrolling implementation within their applications. In the example illustrated in Fig. A., app1 and app3 use tilt-based scrolling so they both must include their own software implementation (marked in red). Each implementation must interact with the device's tilt sensors via the low-level functions of the operating system kernel, which is inefficient and undesirable in today's object style programming. In contrast, other common user interface functions like multi-touch (marked in green) are integrated within the customized operating system, allowing the app's user to use standard touch gestures efficiently.

    Figure A: Inefficient incorporation of tilt-based scrolling in each smartphone app

The duplication of efforts by developers who wish to incorporate RotoView-like scrolling is very inefficient and often results in a crude and less robust implementation. Another major disadvantage is the inconsistent behavior of the tilt-based scrolling operation among the various apps due to the different implementations by the individual developers. These disadvantages have prompted a more efficient model that implements the tilt-based scrolling technology within the smartphone manufacturers' customized operating system in a similar way to the implementation of multi-touch (Fig. B).

    Figure B: Efficient incorporation of tilt-based scrolling within the phone's OS

The new model allows all apps to access a centralized tilt-based view navigation (scrolling) interface using simplified high-level functions. This provides the following major advantages:

• The phone OS itself (as provided "out-of-the-box" without any apps) can use the tilt-based view navigation functions for all of its major user interface modules, including the web browser, the map browser and the picture browser.
• Placing the RotoView tilt-based user interface within the manufacturer's customized OS results in a highly efficient user interface that incorporates all of the advanced features of RotoView technology.
• The implementation can be fully optimized for the specific phone hardware to reduce total power consumption and reduce the computational burden on the device's main processor.
• It creates consistent user interface behavior among all apps that use tilt-based view navigation.
• The new model reduces the efforts for developers who wish to use innovative tilt-based view navigation.
  

INNOVENTIONS® Inc. "INNOVATIVE PRODUCTS FROM INVENTIVE MINDS" ©2011 INNOVENTIONS, INC.
All rights reserved. RotoView and INNOVENTIONS are registered trademarks of INNOVENTIONS, Inc.
RotoView patents are available for purchase or licensing.