FIELD OF INVENTION
The present invention relates to a method of moving video on still in a display
device. In particular the invention relates to making video still on main window
and displaying the same running video in another window of same display
device.
BACKGROUND OF THE INVENTION
Document US 6, 833, 863 provides a method and apparatus for capturing
concurrently still images during video streaming operations. After pausing the
video streaming operations, the still image captured by a digital camera can be
transferred from the system and video-streaming operations can be resumed.
US Patent No. 6, 038, 257 discloses an imaging system and method for improved
display of high resolution still images by integration with the corresponding video
of lower resolution. This will reduce the delay perceived by the viewer in
displaying the lengthy high-resolution still image by immediately displaying a
lower resolution shorter length video image frame corresponding to the still
image.

The document relates to an imaging system, which can display the high-
resolution images on a video system by enhancing the quality of that image. But
it can only display the still images; it cannot extract a still image from running
video and display both of them simultaneously on a single display device.
In an existing television system when STILL key is pressed the moving video in
main window is stopped and a snapshot of that video is displayed in main
window with audio running.
SUMMARY OF THE INVENTION
The main object of the present invention is to overcome the prior art problems
described and to provide a method for the user to view a snapshot of a video in
the main window of a display device along with the current video in another
window of the same display device.
A still snapshot of the video in the main window can be displayed when the
STILL key is pressed and simultaneously displaying the current moving video in a
picture-in-picture (PIP) window. This would allow the user to view both the
snapshot and the video simultaneously.

Thus a preferred embodiment of the present invention provides a method of
moving video on still (MVOS) in a display device comprising the steps of:
switching ON the MVOS mode in the display device; switching ON the STILL key
for capturing a frame from the current video and storing said frame into a buffer;
rerouting said current running video path to a video decoder; displaying the
buffered frame periodically on the main window; and switching ON the sub
window of the display device for displaying the video, from which the stored
frame is captured, in the sub window, along with the captured frame displayed in
the main window.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The invention can now be described in detail with the help of the figures of the
accompanying drawings in which
Figure 1 shows a normal video on a display device.
Figure 2 shows on screen menu for user to select
the feature of the present invention.

Figure 3 shows the MVOS of the present invention in a display device.
Figure 4 shows a flow chart for the operation of the invention.
DETAILED DESCRIPTION
A normal running video clip is displayed on the main window of a display device,
as shown in Figure 1. A snapshot can be captured from this video clip by
pressing a STILL key in the display device.
Figure 2 shows the moving picture capture display (MPCD) feature of the present
invention, providing on screen menu for user to select the feature.
The user can start by switching on the MVOS mode. For switching on this
feature, there is an option. This can be done direct from on screen display or
from a remote control key.

The user can then press STILL key for capturing a snapshot or frame from the
current video and storing the same into a buffer. This switching can be done
directly from the on screen display or from a remote control key. Current
running video path is then rerouted to video decoder for displaying the video on
a sub window of the display device. The buffered captured frame can then be
periodically displayed on the main window of the display device. The sub
window of the display device can be switched on and the video, from which the
buffered frame was captured, can be displayed in the sub window along with the
captured frame (snapshot) in the main window of the same display device.
Rerouting of the current running video path to the video decoder can be done
using a switching IC.
Figure 3 illustrates a situation with MVOS and STILL keys ON through remote
control keys (Hotkey) or from on screen display (OSD) and as a result running
video is displayed in the sub window (PIP) of the display device and having a
frame (snapshot) taken from the running video, displayed in the main window of
the same display device.

The feature of the present invention of moving video on still is useful in watching
a particular picture taken from the video without missing any part of the running
video, while the snapshot is displayed in the main window. Moving picture and
display (MPCD) feature of the present invention while the video is running is a
unique feature of the present invention.

WE CLAIM
1. A method of moving video on still (MVOS) in a display device, comprising
the steps of:
- switching ON the MVOS mode in the display device;
- switching ON the STILL key for capturing a frame from the current
video and storing said frame into a buffer;
- rerouting said current running video path to a video decoder;
- displaying the buffered frame periodically on the main window; and
- switching ON the sub window of the display device for displaying
the video, from which the stored frame is captured, in the sub
window, along with the captured frame displayed in the main
window.

2. The method as claimed in claim 1, wherein switching on the MVOS mode can be done directly from the on screen display (OSD) or from a remote control key.
3. The method as claimed in claims 1 or 2, wherein the switching on of the STILL key can be done from on screen display (OSD) or from a remote control key.
4. The method as claimed in claim 1, wherein the rerouting of the current
running video path to the video decoder can be done with the help of a
switching IC.
5. A method of moving video on still (MVOS) in a display device,
substantially as herein described and illustrated in the figures of the
accompanying drawings.

The main object of the present invention is to overcome the prior art problems described and to provide a method for the user to view a snapshot of a video in the main window of a display device along with the current video in another
window of the same display device. A still snapshot of the video in the main window can be displayed when the STILL key is pressed and simultaneously displaying the current moving video in a picture-in-picture (PIP) window. This would allow the user to view both the snapshot and the video simultaneously. Thus a preferred embodiment of the present invention provides a method of moving video on still (MVOS) in a display device comprising the steps of:
switching ON the MVOS mode in the display device; switching ON the STILL key for capturing a frame from the current video and storing said frame into a buffer; rerouting said current running video path to a video decoder; displaying the buffered frame periodically on the main window; and switching ON the sub
window of the display device for displaying the video, from which the stored frame is captured, in the sub window, along with the captured frame displayed in the main window.