Title of Invention

RECORDING MEDIUM FOR PREVIEWING DIGITAL MULTIMEDIA DATA

Abstract A recording medium and a method for previewing and selecting digital audio/video data unit on the recording medium are provided. The recording medium includes an audio/video pack of the original film, an audio/video pack of the preview film, a background page, and a page control descriptor. After having received a switch button information from a user, a medium reproducing system reads, de-multiplexes, and decodes the information correspond to a specified audio/video pack of the preview film. The medium reproducing system also composes the decoded video data of the background page and the decoded video data of different resolutions to output to a display.
Full Text FIELD OF THE INVENTION
The present invention generally relates to a recording medium and a method
for previewing on-demand digital multimedia stored on said recording medium, and more
specifically to a recording medium using a high density method for storing video and
audio data and a previewing method for selecting audio video data stored on the
recording medium.
BACKGROUND OF THE INVENTION
The optical-electronic recording medium evolved from the early audio
compact disc (CD), which is for audio only, to the audio/video recording medium, such
as laser disc, video compact disc (VCD), and more recently, digital versatile disc (DVD)
with selection menu.
In the earlier VCD, there is only one mode button, i.e., activated mode in the
selection menu of a player because of the simple data structure of the recording medium.
FIG. 1A shows a schematic view of the data structure of a VCD. An entry table 100
includes a plurality of entry points 101-ION, with each entry point having a
corresponding track 111-1 IN. Track 111 further includes a plurality of video packs 11 lb,
headed by an entry video pack Ilia, and a plurality of audio packs 111c.
FIG. IB shows a schematic view of a playing method of a VCD. A
reproducing system first initializes an audio decoder and a single-resolution video
1

decoder, as in step 151. In step 152, an entry menu is loaded from a VCD in the
reproducing system. In step 153, the reproducing system receives an activation signal
from the user. Step 154 is to find an entry point, and step 155 is to move a reading device
of the reproducing system to the entry point corresponding to the activation signal. In
step 156, the reading device reads all the video packs and audio packs of the track
corresponding to the entry point, and, in step 157, all the video and audio packs are
decoded.
One of the shortcomings of VCD is that all of video sequence datas have the
same output resolution; therefore, only a single-resolution background films can be
played in the menu. Furthermore, the only button is the activation button; that is, the user
can only activate and read the original audio/video data, and no previewing is allowed.
In the current DVD technologies, the menu function is improved. As DVD has
a more complicated data structure than VCD, the menu of a reproducing system usually
includes two modes, namely, a selected mode and an activated mode. The reproducing
system reads, from the DVD, the button information and highlight information of the
selection buttons and their corresponding sub-pictures. The button information and the
highlight information are for the reproducing system to obtain the coordinates, color and
activation commands of the selection buttons, and the sub-pictures are used as the icons
of the buttons. When the reproducing system receives an external signal as a selection
signal, the reproducing system places the sub-picture of the selected button according to
the coordinates in the button information and highlight information over the background.
When the reproducing system receives an external activation signal, it executes the
activation command corresponding to the selected button.
2

FIG. 2 shows a data structure of a preview method of a DVD. Button
information 202 of highlight information 201 includes a mode 203 and an activation
command 204. Mode 203 includes two options. One is the selected mode plus activated
mode, and the other is activated mode only. DVD can perform activation command 204
only in the activated mode; that is, to preview the N-th VOBU (video object unit), go to a
starting address table 210 to read the starting address 21N of the N-th VOBU, and to read
the audio/video data from starting address 2 IN. In this DVD technology, every VOBU of
the title can only have a single resolution for all the audio/video data. The reproducing
system cannot process audio/video data with more than one resolution at the same time;
therefore, the preview video serquence must be pasted to the background video sequence
one picture by one picture during the production of the menu, and then encoded and
stored to the DVD disc. However, the compressed data will include a large amount of
background pages of information, which takes up a lot of storage space. In the current
technology, the button and audio/video information are without links; therefore, no on-
demand preview is allowed. U.S. Patent No. 5,963,704, by Mimura in 1998, disclosed a
menu system 304, as shown in FIG. 3, including a background dynamic video sequence
301, a sub-picture image 302, and highlight information 303. Sub-picture image 302
includes all the icons of the buttons, and highlight information records information of all
the buttons. The reproducing system knows, through highlight information, the position
of every button, and the command to be executed by every button in the activated mode.
When the user selects a button, the system enters the selection mode. The
reproducing system continues to play the background video sequence, locates the
information of the selected button through highlight information, and finally overlaps the
3

icon of the selected button in the sub-picture image to the background video sequence in
accordance with the button information. The aforementioned description shows that the
menu system can only play a background dynamic video sequence with a fixed resolution,
and can only have a selection mode and an activation mode. It cannot change the disc for
playing under the selection mode; therefore, it does not provide the previewing
mechanism of the disc.
U.S. Patent No. 6,266,478, by Yoshiro in 1999, disclosed a reproducing
system for displaying a subtitle image and a highlight display of the subtitle image.
Using the video object unit (VOBU) as the unit for the data stored in the recording
medium, each VOBU includes a navigation pack for recording highlight information. The
reproducing system uses highlight information to obtain the button, playing position,
color and play time of the subtitle image in the VOBU to play. The high light information
contains only highlight information of the sub-picture image, and does not have the
information on video sequence. Therefore, there is no link between the video sequence
and the highlight information, and they are independent of each other. The system cannot
change the video sequence in accordance with the user's selection, and does not provide
the on-demand previewing.
At present, to resume the viewing of a DVD or VCD disc requires the
playing-and-skipping of entire disc to locate the resumption point It is a time-consuming
process. With the previewing capacity, it will greatly reduce the amount of time to locate
and resume the viewing of a disc.
4

SUMMARY OF THE INVENTION
The present invention has been made to overcome the aforementioned
drawback of current digital multimedia data viewing. The primary object of the present
invention is to provide a preview method for a digital audio/video disc, and its recording
medium.
The preview method is applicable to a medium information reproducing
system. The medium information reproducing system includes a signal receiver, an audio
output device and a display. The method includes the following steps: (a) Divide, encode
and store data in a recording medium, so that the medium includes at least a preview
audio/video data unit area, a background page area and a page control descriptor area.
The preview audio/video data unit area includes a plurality of preview audio/video data
units. The background page area stores the video data of the background page, and a
plurality of buttons. The page control descriptor area stores the page control description
data, and includes at least an area of total number of buttons, and a plurality of button
information area. Each button information area stores button information, including at
least a starting address of preview audio/video data unit, a set of coordinates for
previewing window and a size of preview window, (b) Read, de-multiplex and decode
the page control description data and the background page video data, and then output
decoded background page video data to a display, (c) Detect an input switch button signal,
and identify the corresponding button, (d) Read, de-multiplex and decode the audio/video
data access unit in accordance with the starting address of the preview audio/video data
unit of the button information, (e) Preview the preview audio/video data unit
The present invention establishes links between each button and preview
5

window and low-resolution audio/video data access unit, so that the digital audio/video
data can be previewed on-demand.
According to the present invention, step (b) can further include the four sub-
steps: (bl) Read, de-multiplex and decode the page control description data and the
background page video data. (b2) Pre-set one of the buttons of the background page as
the initial button. (b3) Read, de-multiplex and decode the audio/video data unit in
accordance with the starting address of the preview audio/video data unit of the button
information. (b4) Repeatedly play the preview audio/video data unit in the preview
window corresponding to the button.
According to the present invention, step (c) can further include the following
four sub-steps: (cl) Check if a switch button signal is received; if not, repeat step (cl).
(c2) identify the switch button signal. (c3) Check if the button mode of the button
information is preview-able; if not, go to step (cl). (c4) Read the starting and ending
addresses of preview audio/video data unit, a set of coordinates for previewing window
and a size of preview window.
According to the present invention, step (e) can further include the following
four sub-steps: (el) Overlap the video data of the decoded preview audio/video data unit
onto the previewing window specified by the coordinates in the decoded background
page video data, and output the overlapped video data to the display, while outputting the
audio data of the decoded preview audio/video data access unit to an audio output device.
(e2) Check if a switch button signal is received; if so, return to step (c2). (e3) Read, de-
multiplex and decode a next preview audio/video data access unit (e4) Determine if the
reading has reached the ending address of the preview audio/video data access unit; if so,
6

return to step (d); otherwise, return to step (el).
Another objective of the present invention is to provide a recording medium to
be used in a reproducing system so that the data stored in the recording medium can be
played. The recording medium includes an original audio/video data unit packet, a
preview audio/video data unit packet, a background page packet, and a page control
descriptor packet. The original audio/video data packet includes a plurality of original
audio data units and a plurality of original video data units. The preview audio/video data
unit packet includes a plurality of preview audio data units and a plurality of preview
video data units. The total amount of data of the preview audio/video data unit packet is
about 205 of that of the original audio/video data unit packet The background page
packet stores the background page video data. The page control descriptor packet stores
at least a total number of the buttons and a plurality of button information. Each button
information at least includes a button mode, a starting address of the original audio/video
data unit, an ending address of the original audio/video data unit, a button coordinate, a
button size, a previewing window coordinate, and previewing window size.
The present invention can processes video data of two different resolutions;
therefore, it can reduce the amount of data stored on the recording medium.
The present invention includes a preview mode before the activated mode.
When the button is in the preview mode, the reproducing system uses the links stored on
the recording medium to process the low-resolution preview audio/video unit data and
high-resolution background page when receiving a switch button signal from the user.
The composite image is output in real-time.
Furthermore, the current technique used for DVD previewing is to paste the
7

data in each preview audio/video data unit packet to the background page to form a new
film, which is then compressed and stored in the DVD. The compressed data requires a
large storage space because it contains the background page video data. The present
invention requires a smaller storage space because it only stores the data in the preview
audio/video data unit packet
The foregoing and other objects, features, aspects and advantages of the
present invention will become better understood from a careful reading of a detailed
description provided herein below with appropriate reference to the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
. . FIG. 1A shows a schematic view of the data structure of a conventional VCD.
FIG. IB shows a flowchart of reproducing method for digital audio/video film
of a conventional VCD.
FIG. 2 shows a schematic view of the data structure of a conventional DVD.
FIG. 3 shows a schematic view of a conventional menu system.
FIG. 4 shows a schematic view of the data structure of a recording medium of
the present invention.
FIG. S shows a schematic view of the relationship between an original film
and a preview film.
FIG. 6 shows a schematic view of the relationship between the recording
medium of the present invention and a medium information reproducing system.
8

FIG. 7 shows a schematic view of the relationship between the menu page,
preview audio/video data unit and original audio video data unit
FIG. 8 shows a flowchart of the preview on-demand method for digital
audio/video film.
FIG. 9A shows a flowchart of initialization method for the background page
of the present invention.
FIG. 9B shows a flowchart of button detection method of the present
invention.
FIG. 9C shows a flowchart of preview method for playing the preview
audio/video data unit of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 4 shows a schematic view of the data structure of the recording medium
of the present invention. FIG. 5 shows the relationship between the original film and the
preview film in the present invention.
The following description refers to both FIG. 4 and FIG. 5. A recording
medium 400 of the present invention, used in a medium reproducing system to play the
data stored on the recording medium, includes an original audio/video data unit area 401,
a preview audio/video data unit area 402, a background page area 403, and a page control
descriptor area 404. Preview audio/video data unit area 402 includes a plurality of low-
resolution preview audio/video data units 501. Original audio/video data unit area 401
includes a plurality of high-resolution original audio/video data units 503. The amount of
data in preview audio/video data unit area 402 is about one-fifth of the amount of the data
9

in original audio/video data unit area 401. Background page area 403 includes high-
resolution background page video data. Page control descriptor area 404 stores page
control description data, which includes at least a total number 410 of the buttons and a
plurality of button information 4411-41N. Each button information 411-41N stores a
button mode 41 la, a starting address 41 lb of the original audio/video data unit, an ending
address 41 lc of the original audio/video data unit, a starting address 41 Id of the preview
audio/video data unit, an ending address 41 le of the preview audio/video data unit,
button coordinates 41 If, a button size 41 lg, preview window coordinates 41 lh and
preview window size 41 li.
Button mode 41 la is used to indicate if this button can enter the preview mode.
Starting address 411b and ending address 41 lc of the original audio/video data unit are
the starting and the ending points of the original audio/video data unit on the optical
medium for the reproducing system to read when the button is in the activate mode.
Starting address 41 Id and ending address 41 le of the preview audio/video data unit are
the starting and the ending points of the preview audio/video data unit on the optical
medium for the reproducing system to read when the button is in the preview mode.
Button coordinates 41 If and button size 41 lg are the starting coordinates of the button in
the background page and the size of the button, respectively. Similarly, window
coordinates 41 lh and window size 41 lg are the starting coordinates of the preview
window in the background page and the size of the preview window, respectively.
The distinct feature of the data structure of the present invention is that links
are provided between each button, preview window and low-resolution audio/video data
unit, so that the on-demand preview functionality can be achieved.
10

FIG. 5 shows a schematic view of the relationship between an original film
and a preview film. Width 501a of the preview audio/video data unit 402 is less than or
equal to width 503a of the original audio/video data unit 401, and length 501b of the
preview audio/video data unit 402 is less than or equal to length 503b of the original
audio/video data unit 401. Therefore, reproducing duration of the preview audio/video
data unit 402 is less than or equal to reproducing duration of the original audio/video data
unit 401. In addition, because the width and length of the background page are the same
as those of the original audio/video data unit 401, width 501a and length 501b of the
preview audio/video data unit 402 are less than or equal to the width and length of the
background page, respectively.
FIG. 6 shows a schematic view of the relation between a recording medium
400 of the present invention and a medium reproducing system 600. Medium reproducing
system 600 uses a reading device 602 to read the data on recording medium 400 into a
system buffer 603. Medium reproducing system 400 then uses a multiplexer 604 to
separate different types of data into separate buffers. That is, the video data is stored in
video buffer 611 and audio data is stored in audio buffer 613, while background page
video data is stored in background buffer 612 and page control description data is stored
in page control buffer 614. The system inputs the video data, audio data, background
video data and the page control description data to video decoder 621, background
decoder 622, audio decoder 623 and page control description analyzer 624 for processing.
There are two sources for audio and video data, including low-resolution preview
audio/video data unit 501 and high-resolution original audio/video data unit 503. The
page control description data is interpreted by page control analyzer 624.
11

FIG. 7 shows a schematic view of the relation between the menu, preview
audio/video data unit and original audio/video data unit of the present invention. As
shown in FIG. 7, menu of the present invention includes a background page 701, a
plurality of buttons 711-71N, and a plurality of preview windows 721-72M. The preview
audio/video data unit is divided into M VOBUs for playing. The original audio/video data
unit is divided into N VOBUs for playing. Refer to FIG. 6 and FIG. 7 for the following
description. When the movement button (up, down, left, and right) on the remote control
is pressed, main controller 610 enters the preview mode according to the page control
description data and the switching signal received by signal receiver 60S. Meanwhile, the
main controller 610 performs the identification of button on background page 701 and
reads the associated button information. When a preview-able button is pressed, the
previewed audio/video data unit is played in the corresponding preview window. The
method will be described in details in FIG. 8 and FIG. 9.
On the other hand, when the user press an "enter" button after pressing the
movement button (up, down, left and right), an activation signal is issued. In this case,
main controller 610 enters the activation mode according to the page control description
data and the switching signal received by signal receiver 60S. Meanwhile, the main
controller 610 performs the identification of button on background page 701 and reads
the associated button information. According to the associated button information, main
controller 610 sends starting address 411b and ending address 411c of the selected
original audio/video data unit to reading device 602 for reading the data in the unit Then,
multiplex, decode, transform into the appropriate format by main controller 610, and
output to display 606 for display until the entire original audio/video data unit is
12

processed.
FIG. 8 shows a flowchart of the preview on-demand method of the present
invention.
Refer to FIGs. 4-8 for the following description. The preview on-demand
method for digital audio/video data of the present invention is applicable to a medium
reproducing system 600 having a signal receiver 605, an audio output device 609 and a
display 606. The method starts with step 801, which is to divide, encode and store data in
a recording medium 400. Recording medium 400 at least includes a preview audio/video
data unit area 402, a background page area 403, and a page control descriptor area 404.
Preview audio/video data unit area 402 includes a plurality of low-resolution preview
audio/video data units 501. Background page area 403 includes high-resolution
background page video data. Page control descriptor area 404 stores page control
description data, which includes at least a number 401 of the buttons and a plurality of
button information 4411-4IN. Each button information 411-41N stores a starting address
41 Id of the preview audio/video data unit, preview window coordinates 41 lh and a
preview window size 41 li.
Step 802 is to read, de-multiplex, and decode the page control description data
and background page, and output the decoded background page to display 606. Step 803
is to detect an input button signal and identify the corresponding button. Step 804 is to
read, de-multiplex and decode the preview audio/video data unit according to starting
address 41 Id of the preview audio/video data unit stored in the button information. And
finally, step 805 is to preview the preview audio/video data unit
Medium reproducing system 600 can be a personal computer or a DVD player,
13

and recording medium 400 can be a CD, a flash card or a micro-drive. The video format
of original audio/video data unit 503 can be ISO-defined MPEG, AVI, or WMV. The
audio format of original audio/video data unit 503 and preview audio/video data unit 501
can be MP2, MP3, WAVE or WMA.
FIG. 9A is a flowchart of background initialization method. Step 901 is to
read, de-multiplex and decode the page control description data and background page
video data. Step 902 is to set one of the buttons in the background page as the initial
button. Step 903 is to read, de-multiplex and decode the preview audio/video data unit
according to the starting address of the preview audio/video data unit of the button
information. Finally, step 904 is to repeatedly play the preview audio/video data unit in
the preview window corresponding to the button.
FIG. 9B is a flowchart of button identification method. Step 911 is to detect if
a switch signal is received; if not, repeat this step until a signal is received and proceed to
step 912. Step 912 is to identify the button. Step 913 is to check if the button is a
preview-able mode; if not, skip to step 911; otherwise, proceed to step 914. Step 914 is to
read the starting address and the ending address of the preview audio/video data unit, the
preview window coordinates, and the preview window size.
FIG. 9C is a flowchart of previewing method of preview audio/video data unit
Step 921 is to overlap the decoded preview audio/video data unit onto the decoded
background page video data at the location specified by the preview window coordinates
and output to display 606. Meanwhile, the decoded audio data of the preview audio/video
data unit is outputted to audio output device 609. Main controller 610 activates switch
608 so that the decoded preview video data and the background page can be overlapped
14

by overlapper 607 and transformed by main controller 610 into an appropriate format for
outputting to display 606.
Step 922 is to detect if a switch button signal is received; if so, return to step
912; otherwise, proceed to step 923. Step 923 is to read, de-multiplex and decode the next
preview audio/video data unit Finally, step 924 is to check if the ending address of the
preview audio/video data unit is reached; if so, return to step 804; otherwise, return to
step 921.
The present invention includes a preview mode before the activated mode.
When the button is in the preview mode, the reproducing system uses the links stored on
the recording medium to process the low-resolution preview audio/video unit data and
high-resolution background page when receiving a switch button signal from the user.
The composite image is output in real-time.
Furthermore, the current technique used for DVD previewing is to paste the
data in each preview audio/video data unit packet to the background page to form a new
film, which is then compressed and stored in the DVD. The compressed data requires a
large storage space because it contains the background page video data. The present
invention requires a smaller storage space because it only stores the data in the preview
audio/video data unit packet.
Although the present invention has been described with reference to the
preferred embodiments, it will be understood that the invention is not limited to the
details described thereof. Various substitutions and modifications have been suggested in
the foregoing description, and others will occur to those of ordinary skill in the art
Therefore, all such substitutions and modifications are intended to be embraced within
15

the scope of the invention as defined in the appended claims.
16

WE CLAIM
1. A method for previewing digital audio/video data, to be used in a medium
reproducing system having a signal receiver, an audio output device and a display;
said method comprising the steps of:
(a) dividing, encoding and storing a data in a recording medium, so that said
recording medium comprising at least a preview audio/video data unit area, a
background page area, and a page control descriptor area; said preview audio/video
data unit area comprising a plurality of preview audio/video data unit, said
background page area storing background page video data, said background page area
at least comprising a plurality of buttons, said page control descriptor area at least
comprising a number of total buttons, and a plurality of button information areas;
each button information area storing button information including at least a starting
address of said preview audio/video data unit, preview window coordinates, and a
preview window size;
(b) reading, de-multiplexing and decoding said page control descriptor and said
background page video data, and outputting decoded said background page video data
to said display;
(c) detecting an input switch button signal, and identifying corresponding button;
(d) reading, de-multiplexing and decoding said preview audio/video data unit
according to said starting address of said preview audio/video data unit in said button
information; and
(e) previewing said preview audio/video data unit
17

2. The method as claimed in claim 1, the data structure of said recording medium further
comprises an original audio/video data unit area, a preview audio/video data unit area,
a background page area, and a page control descriptor area; said background page
area at least comprises a plurality of buttons and said page control descriptor area
stores at least a total number of said buttons and a plurality of button information;
each button information area stores button information including at least an icon
mode, a starting address of an original audio/video data unit, an ending address of an
original audio/video data unit, a starting address of a preview audio/video data unit,
an ending address of a preview audio/video data unit, button coordinates, a button
size, previewing window coordinates, and a previewing window size.
3. The method as claimed in claim 2, wherein said step (b) further comprises the steps of:
(bl) reading, de-multiplexing and decoding said page control description data and said
background page video data;
(b2) pre-setting one of said buttons of said background page as an initial button;
(b3) reading, de-multiplexing and decoding said preview audio/video data unit in
accordance with said starting address of said preview audio/video data unit of said
button information; and
(M) repeatedly playing said preview audio/video data unit in said preview window
corresponding to said button.
4. The method as claimed in claim 2, wherein said step (c) further comprises the steps of:
(cl) checking if a switch button signal being received; if not, repeating step (cl);
(c2) identifying said switch button signal;
18

(c3) checking if said button mode of said button information being preview-able; if
not, returning to step (cl); and
(c4) reading said starting and ending addresses of said preview audio/video data unit,
said preview window coordinates and said preview window size.
5. The method as claimed in claim 2, wherein said step (e) further comprises the steps of:
(el) overlapping said video data of said decoded preview audio/video data unit onto
said preview window at a location specified by said coordinates on said decoded
background page video data, and outputting said overlapped video data to said display,
while outputting said audio data of said decoded preview audio/video data unit to said
audio output device;
(e2) checking if a switch button signal being received; if so, returning to step (c2);
(e3) reading, de-multiplexing and decoding a next preview audio/video data unit; and
(e4) determining if said ending address of said preview audio/video data unit being
reached; if so, returning to step (d); otherwise, returning to step (el).
6. The method as claimed in claim 1, wherein said medium reproducing system is a
personal computer or a digital video disc player.
7. T he method as claimed in claim 1, wherein said recording medium is a compact disc,
a flash card or a micro-drive.
i
8. The method as claimed in claim 1, wherein the video data format of said original
audio/video data unit is ISO-defined MPEQ AVI, or WMV.
i
9. The method as claimed in claim 1, wherein the audio data format of original
19

audio/video data unit and said preview audio/video data unit is MP2, MP3, WAVE or
WMA.
10. A recording medium, for being used in a medium reproducing system to reproduce
data stored on said recording medium, said recording medium comprising:
an original audio/video data unit packet, further comprising a plurality of original
video data units and a plurality of original audio data units;
a preview audio/video data unit packet, further comprising a plurality of preview
video data units and a plurality of preview audio data units, total data amount being
about one-fifth of that of said original audio/video data unit packet;
a background page packet, for storing background page video data; and
a page control descriptor packet, further comprising at least a number of total buttons
and a plurality of button information.
11. The recording medium as claimed in claim 10, wherein said button information at
least comprises a button mode, a starting address of an original audio/video data unit,
an ending address of an original audio/video data unit, a starting address of a preview
audio/video data unit, an ending address of a preview audio/video data unit, button
coordinates, a button size, previewing window coordinates, and a previewing window
size.
12. The recording medium as claimed in claim 10, wherein said medium reproducing
system is a personal computer or a digital video disc player.
13. The recording medium as claimed in claim 10, wherein said recording medium is a
compact disc, a flash card or a micro-drive.
20

21
14. The recording medium as claimed in claim 10, wherein the video data format of said
original audio/video data unit is ISO-defined MPEQ AVI, or WMV.
15. The recording medium as claimed in claim 10, wherein the audio data format of
original audio/video data unit and said preview audio/video data unit is MP2, MP3,
WAVEorWMA.

A recording medium and a method for previewing and selecting digital audio/video
data unit on the recording medium are provided. The recording medium includes an
audio/video pack of the original film, an audio/video pack of the preview film, a
background page, and a page control descriptor. After having received a switch button
information from a user, a medium reproducing system reads, de-multiplexes, and
decodes the information correspond to a specified audio/video pack of the preview film.
The medium reproducing system also composes the decoded video data of the
background page and the decoded video data of different resolutions to output to a
display.

Documents:

00882-kol-2005-abstract.pdf

00882-kol-2005-claims.pdf

00882-kol-2005-description complete.pdf

00882-kol-2005-drawings.pdf

00882-kol-2005-form-1.pdf

00882-kol-2005-form-2.pdf

00882-kol-2005-form-3.pdf

00882-kol-2005-form-5.pdf

882-KOL-2005-(12-01-2012)-CORRESPONDENCE.pdf

882-KOL-2005-(12-01-2012)-FORM 27.pdf

882-KOL-2005-(15-01-2013)-FORM-27.pdf

882-KOL-2005-CORRESPONDENCE 1.1.pdf

882-KOL-2005-CORRESPONDENCE.pdf

882-KOL-2005-FORM 27 1.1.pdf

882-KOL-2005-FORM 27.pdf

882-kol-2005-granted-abstract.pdf

882-kol-2005-granted-claims.pdf

882-kol-2005-granted-correspondence.pdf

882-kol-2005-granted-description (complete).pdf

882-kol-2005-granted-drawings.pdf

882-kol-2005-granted-examination report.pdf

882-kol-2005-granted-form 1.pdf

882-kol-2005-granted-form 18.pdf

882-kol-2005-granted-form 2.pdf

882-kol-2005-granted-form 3.pdf

882-kol-2005-granted-form 5.pdf

882-kol-2005-granted-pa.pdf

882-kol-2005-granted-reply to examination report.pdf

882-kol-2005-granted-specification.pdf

882-kol-2005-granted-translated copy of priority document.pdf


Patent Number 235020
Indian Patent Application Number 882/KOL/2005
PG Journal Number 26/2009
Publication Date 26-Jun-2009
Grant Date 24-Jun-2009
Date of Filing 26-Sep-2005
Name of Patentee INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Applicant Address NO. 195, SEC. 4, CHUNG HSING ROAD, CHUTUNG, HSINCHU, TAIWAN, R.O.C.
Inventors:
# Inventor's Name Inventor's Address
1 KUN-DA WU NO. 22, LANE 209, DAJHUANG RD., NANTOU CITY, NANTOU COUNTY
2 JAIN-RU LI NO. 19, CHANGSING RD., CHAOJHOU TOWNSHIP, PINGTUNG COUNTRY
3 MENG-HAN TSAI 7F, NO. 76, JINHUA ST., DA-AN DISTRIET, TEIPEI CITY
4 WEI-ZHENG LU NO. 2, LANE 304, YUSHAN RD., CHIAYI CITY
5 GUO-ZUA WU 6F, NO, 19, JYUREN ST., WEST DISTRIET, TAICHUNG CITY
PCT International Classification Number G06F 17/30
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 11/024, 387 2004-12-28 U.S.A.