RotoView Tilt and Scroll User Interface

Tilt and Scroll Display for Mobile Devices

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RotoView User Interface

The main objective of the RotoView technology is to provide a convenient and intuitive user interface experience in all personal media devices. In particular, RotoView is very suitable for a single hand operation. This page discuss several issues related to the RotoView user interface.

View Navigation Mode and Fixed View Mode

RotoView introduces the notion of two distinct viewing modes: the view navigation mode and the fixed view mode. Since the personal media is continuously subject to movements and rotations, leaving the device on view navigation mode all the time will cause the display to shift inadvertently. Therefore, much of the RotoView technology deals with the transition between these viewing modes. These transitions include the following:

Special hand gestures. Changes in the display due to the hand gesture itself are self-corrected as discussed below.

Manual switching using a keyboard, touch screen, or other tapping sensors.

Optional return to fixed view mode after time expiration or after a preset non-activity time.

RotoView optionally alerts the user when the view navigation is active (e.g. by a blinking marker on the display boundary) to further eliminate inadvertent display drifts.

Smooth Response to Sensor Data

RotoView introduces the concept of Response Curve which controls the amount of display navigation based on the sensor data. It produces intuitive overall view navigation based upon our powerful Non-linear Dynamic Response (NLDR) algorithms.

While in Navigation mode, response to the re-orientations of the device may change dynamically. For example, at the start of the navigation the response is fairly coarse in order to bring the display to the general area. After a few seconds within Navigation mode, the response automatically becomes more refined, to allow exact placement of the display. As a result, RotoView's NLDR algorithms do not require an exact correlation between orientation changes and actual navigation of the display, which allows for the use of relatively low-cost coarse sensors to determine the orientation changes. The virtual closed loop comprising the media movements, the sensor data, the NLDR response and the user's eyes allows the user to direct the view as desired.

The response curves utilize noise clipping by witholding view navigation responses that may be the result of the user's inadvertent movements. Similarly, various threshold values are used to ignore any small orientation changes due to normal hand trembling. Both clipping and threshold values can be automatically adjusted to accomodate the user's stored profile.

RotoView Ballistics

RotoView stores a trail of virtual display navigation states during the view navigation so that the system can returned to the fixed mode with any of the stored states. The trail is used when a hand gesture command to exit navigation view mode is detected. The personal media display is set to the state just prior to the start of the movement associated with the gesture.

Similarly, a stored display state of the trail can be selected by the user to "undo" any inadvertent view navigation that occurs during view navigation mode.

This trail of virtual display navigation states is included within the broader RotoView Ballistics employed in our development systems, as illustrated in Figs. 1 and 2.

Figure 1 - RotoView APP's Ballistics

Figure 2 - PC-Based Developmet System's Ballistics

For more information

The RotoView technology is protected by our patents and trade secrets. Further information requires a Non-Disclosure Agreement. Please contact Scott LaRoche at 1+ (281) 879-6226, fax 1+ (281) 879-6415, or e-mail scott@innoventions.com.