INNOVENTIONS' RotoView® - The Intuitive Display Navigation Solution for Hand Held DevicesBackground and problem definitionCustomer demand for information and entertainment on the go, combined with the rapid miniaturization of complex electronic circuits and the emergence of high-resolution active TFT Liquid Crystal Displays have vastly increased the number and variety of smart hand-held devices with information displays. Such devices now include smartphones and a variety of hand-held computers (PDA), GPS devices and others. Today's smart hand held devices utilize advanced processors, a large amount of internal memory, wireless communication capabilities and active LCD displays with extremely bright backlit screens that can be viewed from almost any angle. The display's SIZE will always remain small due to the limitations inherent to the form factor. This fact leads to the challenge of displaying large amounts of complex information on a small screen. An additional challenge is to enable single-hand operation of the device.
The RotoView ApproachRotoView technology has a unique Navigation mode. During Navigation mode, the hand-held small display navigates the large stored virtual display in response to changes in orientation at which the device is held. In particular, it allows the user to navigate a large display in all directions. The following example illustrates how a relatively large virtual display is navigated during Navigation mode.
Figure 2 shows the entire stored virtual display of a picture to be viewed by the hand-held device. Of course, it is assumed that the picture cannot fit the smaller size display of the hand-held device and the trivial solution of reducing the size will result in a picture too small to be viewed. Using the RotoView protocol, the hand-held device is entered into the Navigation mode. During Navigation mode, the user first rotates the device to the left (Fig. 3A) and then rotates to the right to see beyond the right boundary of the display (Fig. 3B).
At any time, the user can exit Navigation mode to fix the display (the Fixed mode), resume Navigation mode and continue to rotate the device to the right to view the remainder of the stored picture, as shown in Fig. 3C. Display navigation can occur in all directions, depending on the user's hand tilt.
Another example of RotoView's operation is in view magnification. Fig. 4A shows a regular display which may contain too much information for the user to view conveniently on such a small display. By commanding the unit to magnify the display and activating the Navigation mode (Fig. 4B), the user can navigate the enlarged display at his convenience.
It is important that the entire operation of RotoView will be intuitive and therefore easy to use, and yet be implemented at a low cost. RotoView provides several alternate choices of sensors and various protocol options to switch between Navigation and Fixed modes. The RotoView Non-linear Dynamic Response (NLDR) algorithms determine the amount of view navigation in response to the tilt and movement of the hand held device.The NLDR algorithms exhibit two main features:
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 to bring the display to the general area. After few seconds within Navigation mode, the response automatically becomes more refined, to allow exact placement of the display. As a result, RotoView does not require an exact correlation between orientation changes and actual navigation of the display, which allows the use of relatively low cost coarse sensors to determine the orientation changes. In addition to the use of a switch or touch screen command to activate Navigation mode, RotoView may activate Navigation mode by tapping on the enclosure of the hand held device. Another embodiment activates the Navigation mode by a vertical hand gesture. Both of these activation options are well suited for single hand operation. Summary of RotoView Features and Benefits
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MINDS" ©1995, 2007 INNOVENTIONS, INC. All rights reserved. RotoView and INNOVENTIONS are registered trademarks of INNOVENTIONS, Inc. RotoView was previously introduced as GyroView. |