U.S. patent application number 10/918864 was filed with the patent office on 2005-02-24 for method and apparatus for displaying html and video simultaneously.
Invention is credited to Goldman, Phillip Y..
Application Number | 20050044571 10/918864 |
Document ID | / |
Family ID | 34192603 |
Filed Date | 2005-02-24 |
United States Patent
Application |
20050044571 |
Kind Code |
A1 |
Goldman, Phillip Y. |
February 24, 2005 |
Method and apparatus for displaying HTML and video
simultaneously
Abstract
A graphical user interface (GUI) includes a hyper text mark-up
language (HTML) document. A video image from broadcast data is
displayed in a same window with the HTML document.
Inventors: |
Goldman, Phillip Y.; (Los
Altos, CA) |
Correspondence
Address: |
WORKMAN NYDEGGER/MICROSOFT
1000 EAGLE GATE TOWER
60 EAST SOUTH TEMPLE
SALT LAKE CITY
UT
84111
US
|
Family ID: |
34192603 |
Appl. No.: |
10/918864 |
Filed: |
August 16, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10918864 |
Aug 16, 2004 |
|
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|
09087354 |
May 29, 1998 |
|
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Current U.S.
Class: |
725/51 ;
348/E5.1; 348/E5.105; 725/37; 725/40; 725/43; 725/48 |
Current CPC
Class: |
H04N 5/44504 20130101;
H04N 21/4725 20130101; H04N 21/4782 20130101; H04N 21/4722
20130101; H04N 21/435 20130101; H04N 5/44543 20130101; H04N 21/4622
20130101; H04N 21/4316 20130101; H04N 21/47 20130101 |
Class at
Publication: |
725/051 ;
725/037; 725/040; 725/043; 725/048 |
International
Class: |
H04N 005/445 |
Claims
1. (Cancelled)
2. In a system including a client that receives broadcast data from
a broadcast data source, and wherein a document is encoded in the
broadcast data, a method for displaying the broadcast data and the
encoded document together for purposes of simultaneous viewing, the
method comprising: displaying video images of the broadcast data in
a video window of a display device, the video images spanning an
entire length and width of the video window; decoding the document
that is encoded in the broadcast data, the encoded document
including a multimedia identifier that can be selected by a user to
deliver additional information for display with the displayed video
images and within the same video window as the displayed video
images; converting the decoded document into a viewable document
format; and upon receiving input selecting the multimedia
identifier, displaying the viewable decoded document and the
identified additional information in the same video window as the
displayed video images.
3. A method as defined in claim 2, wherein the document is a hyper
text markup language document and the multimedia identifier is
selectable to deliver data to a remote computer system.
4. A method as defined in claim 2, wherein each video image spans
an entire width and length of the display device.
5. A method as recited in claim 2, wherein each video image from
the broadcast data comprises a video image from a television
program.
6. In a system including a client that receives broadcast data from
a broadcast data source, and wherein a document is encoded in the
broadcast data, a computer program product for implementing a
method for displaying the broadcast data and the encoded document
together for purposes of simultaneous viewing, the method
comprising: a computer readable medium having computer executable
instructions for performing the method, the method comprising:
displaying video images of the broadcast data in a video window of
a display device, the video images spanning an entire length and
width of the video window; decoding the document that is encoded in
the broadcast data, the encoded document including a multimedia
identifier that can be selected by a user to deliver additional
information for display with the displayed video images and within
the same video window as the displayed video images; converting the
decoded document into a viewable document format; and upon
receiving input selecting the multimedia identifier, displaying the
viewable decoded document and the identified additional information
in the same video window as the displayed video images.
7. The computer program product of claim 6, wherein the document is
a hyper text markup language document and the multimedia identifier
is selectable to deliver data to a remote computer system.
8. The computer program product of claim 6, wherein each video
image from the broadcast data comprises a video image from a
television program.
9. In a system that receives broadcast data from a broadcast data
source that encodes a document, a computer program product for
implementing a method for displaying both the broadcast data and
the document while connecting with one or more remote servers and
displaying additional documents retrieved from the one or more
remote servers, the computer program product comprising: a computer
readable medium having computer executable instructions for
performing the method, the method comprising: displaying video
images of the broadcast data in a video window of a display device;
decoding the document that is encoded in the broadcast data, the
encoded document including one or more links that identify
additional information that can be accessed in additional documents
by a user when the one or more links are selected by the user, the
one or more links being displayed with the video images in the
video window; converting the decoded document into a viewable
document, the viewable document including the one or more links
that can be selected by a user; processing the viewable document
with the broadcast data such that some of the video images of the
broadcast data are simultaneously displayed with the viewable
document in the same window as the displayed video images, the
viewable document being independent of any particular video image
of the broadcast data; retrieving the additional documents from the
one or more remote servers when one of the one or more displayed
links is selected; and displaying the additional documents in the
same video window as each video image of the broadcast data.
10. The computer program product of claim 9, wherein each video
image spans an entire length and width of a display.
11. The computer program product of claim 9, wherein the document
is a hyper text markup language document that includes a multimedia
identifier that is selectable to deliver data to a remote computer
system.
12. The computer program product of claim 9, wherein the document
includes a multimedia identifier that is selectable to deliver data
to be displayed in the same video window as each video image of the
broadcast data.
13. The computer program product of claim 9, wherein each video
image from the broadcast data comprises a video image from a
television program.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application is a continuation application of
commonly-assigned U.S. patent application Ser. No. 09/087,351 filed
May 29, 1998, entitled "Method and Apparatus for Displaying HTML
and Video Simultaneously" and which is incorporated herein by
reference.
BACKGROUND OF THE INVENTION
[0002] 1. The Field of the Invention
[0003] The present invention relates to the field of entertainment
systems. More specifically, the present invention relates to a
method and apparatus for presenting Hyper Text Mark-up Language
(HTML) documents with video images on a display to enhance a
viewer's viewing experience.
[0004] 2. The Relevant Technology
[0005] The Internet has become an expansive backbone of
communication with a vast repository of information. The reason for
its popularity is due in large part to the development of the
hypertext mark-up language (HTML). HTML has transformed the
Internet from the black and white world of text into the vibrant
multi-media environment that it is today. HTML is a document-layout
and hyperlink-specification language. It defines the syntax and
placement of special, embedded directions that instruct a web
browser on how to display the contents of the document, including
text, images, and other support media. HTML tells a web browser how
to make a document interactive through special hypertext links,
which connect a document with other documents, as well as with
other Internet resources such as FTP and Gopher. HTML is
responsible for unifying pictures, sounds, and text in a document
allowing programmers to design the rich, multi-media-filled web
pages that have propelled the Internet as a new medium for
worldwide information exchange and commerce.
[0006] With the current trend in the electronics and computer
industry to converge the computer system and more traditional
entertainment system components such as the television, it is
possible to combine displaying video images from broadcast data
with HTML documents. Thus, an improved method and apparatus for
displaying an HTML document with a video image is desired.
BRIEF SUMMARY OF THE INVENTION
[0007] A graphical user interface (GUI) according to a first
embodiment of the present invention is disclosed. The GUI includes
a hyper text mark-up language (HTML) document. A video image from
broadcast data is displayed in a same window with the HTML
document.
[0008] A graphical user interface (GUI) according to a second
embodiment of the present invention is disclosed. The GUI includes
a hyper text mark-up language (HTML) document. A video image from
broadcast data is positioned around the HTML document.
[0009] A graphical user interface (GUI) according to a third
embodiment of the present invention is disclosed. The GUI includes
a hyper text mark-up language (HTML) document. A video image from
broadcast data is positioned such that it has the appearance of
being behind the HTML document.
[0010] A graphical user interface (GUT) according to a fourth
embodiment of the present invention is disclosed. The GUI includes
a video image from broadcast data. A hyper text mark-up language
(HTML) document is positioned on the GUI such that the HTML based
form has the appearance of covering a section of the video
image.
[0011] A method for configuring a graphical user interface (GUI)
according to a fifth embodiment of the present invention is
disclosed. A hyper text mark-up language (HTML) document is decoded
from broadcast data. A video image from the broadcast data is
displayed on a display. The HTML document is displayed on the
display such that the HTML document has the appearance of covering
a portion of the video image.
[0012] A method for configuring a graphical user interface (GUI)
according to a sixth embodiment of the present invention is
disclosed. A hyper text mark-up language (HTML) document is decoded
from broadcast data. A video image from the broadcast data is
displayed on a display. The HTML document is displayed on the
display such that the HTML document and the video image are in a
same window.
[0013] A method for configuring a graphical user interface (GUI)
according to a seventh embodiment of the present invention is
disclosed. A hyper text mark-up language (HTML) document is decoded
from broadcast data. The HTML document is displayed on a display. A
video image from the broadcast data is displayed on the display
such that the video image has the appearance of being positioned
around the HTML document.
[0014] A method for configuring a graphical user interface (GUI)
according to an eighth embodiment of the present invention is
disclosed. A hyper text mark-up language (HTML) document is decoded
from broadcast data. The HTML document is displayed on a display. A
video image from the broadcast data is displayed on the display
such that the video image has the appearance of being behind the
HTML document.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention is illustrated by way of example and
not by way of limitation in the figures of the accompanying
drawings, in which like references indicate similar elements and in
which:
[0016] FIG. 1 is a block diagram of a network in which an
embodiment of the invention is implemented;
[0017] FIG. 2 is a block diagram of a client computer system in
which an embodiment of the invention is implemented;
[0018] FIG. 3 is a block diagram of modules implementing an
embodiment of the present invention;
[0019] FIG. 4 illustrates an exemplary graphical user interface
according to a first embodiment of the present invention;
[0020] FIG. 5 illustrates an exemplary graphical user interface
according to a second embodiment of the present invention;
[0021] FIG. 6 illustrates an exemplary graphical user interface
according to a third embodiment of the present invention; and
[0022] FIG. 7 is a flow chart illustrating a method for displaying
an HTML document with a video image according to an embodiment of
the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0023] FIG. 1 illustrates a network 100 in which an embodiment of
the present invention is implemented. Block 150 represents the
Internet. Blocks 130-132 represents server computer systems
connected to the Internet 150. According to an embodiment of the
present invention, each of the server computer systems 130-132 is a
HyperText Transfer Protocol (HTTP) server that stores HTML
documents. Each of the server computer system 130-132 has an
Internet domain name. The server computer systems 130-132 include
HTML documents that have an URL that includes the document's name,
preceded by the hierarchy of directory names in which the document
is stored, the Internet domain name of the server that hosts the
document, and the software and manner by which the browser and the
document's host server communicate to exchange the document.
[0024] Block 110 represents a client computer system. The client
computer system 110 is a convergent computer system that allows a
user to view both video images from broadcast data and data from
computer system, such as HTML documents, off of a single display
device.
[0025] Block 160 represents a broadcast data source. The broadcast
operates to transmit broadcast data to the client computer system
100. The broadcast data may include video, audio, HTML or other
type of data. Broadcast data may be transmitted from the broadcast
data source 160 to the client computer system via a cable
broadcast, satellite broadcast, very high frequency (VHF) or ultra
high frequency (UHF) communication from an aerial antenna, or using
other transmission techniques.
[0026] According to an embodiment of the network 100, the broadcast
data source 160 delivers HTML documents to the client computer
system 110 with the broadcast data. The HTML documents may be
encoded as HTML code in a line of the vertical blanking interval or
encoded elsewhere in the broadcast data.
[0027] Block 120 represents a data center. The data center 120 is
connected to the Internet 150 and operates to facilitate a
connection between the client computer system 110 and the Internet
150 such that the client computer system 110 may access the HTML
documents stored in the server computer systems 130-132. Data is
passed between the client computer system 110 and the server
computer systems 130-132 through the data center 120. The client
computer system 110 interfaces the data center 120 via an
intermediate connection 140. According to one embodiment of the
present invention, the intermediate connection 140 may be a direct
telephone connection to the data center 120. According to a second
embodiment of the present invention, the intermediate connection
140 may be an indirect connection to the data center 120 via a
direct telephone connection to a Post Office Protocol (POP) server
that interfaces the data center 120.
[0028] Referring to FIG. 2, a client computer system upon which an
embodiment of the present invention can be implemented is shown as
110. The client computer system 110 comprises a processor 201 that
processes digital data. The processor 201 may be a complex
instruction set computing (CISC) microprocessor, a reduced
instruction set computing (RISC) microprocessor, a very long
instruction word (VLIW) microprocessor, a processor implementing a
combination of instruction sets, a microcontroller, or other
processor device. The processor 201 may be a single processor
device or a plurality of processing devices. The processor 201 is
coupled to a bus 220 which transmits data signals between the
processor 201 and other components in the computer system 110. The
bus 220 may be a single bus or a plurality of buses.
[0029] A main memory 202 is coupled to the bus 220 and may comprise
a dynamic random access memory (DRAM) device, a static random
access memory (SRAM) device, or other memory devices. The main
memory 202 stores information or other intermediate data executed
by the processor 201. The client computer system 110 also comprises
a read only memory (ROM) and/or other static storage device 203
coupled to the bus 220 that stores information and instructions for
the processor 201.
[0030] A data storage device 204 is coupled to the bus 220 and
stores information and instructions. The data storage device 204
may be a hard disk drive, a floppy disk drive, a CD-ROM device, a
flash memory device or other mass storage device. A network
interface 205 is coupled to the bus 220. The network interface 205
operates to connect the client computer system 110 to the network
100 (shown in FIG. 1). According to an embodiment of the present
invention, the network interface 205 is a modem that connects the
client computer system 110 to the intermediate connection 140
(shown in FIG. 1).
[0031] An input device 207, including alphanumeric and other keys,
is typically coupled to the bus 220 for communicating information
and command selections to the processor 201. In an alternate
embodiment of the present invention the input device 207 is not
directly coupled to the bus 220, but interfaces with the computer
system 200 via infra-red coded signals transmitted from the input
device to a infra-red receiver in the computer system (not shown).
In still an alternate embodiment of the present invention, the
input device 207 is a remote control unit having keys that select
characters or command selections on the display device.
[0032] A smart card interface 208 is coupled to the bus 220.
According to an embodiment of the present invention, the smart card
interface 208 may operate to read or write to a smart card. The
smart card interface 208 includes a sensor 209 that detects when a
smart card has been inserted in the smart card interface 208. The
smart card interface 208 may be used to communicate with a contact
or contactless smart card.
[0033] The client computer system 110 includes a tuner 209. The
tuner 209 operates to receive broadcast data from the broadcast
data source 160. The tuner 209 may include a cable tuner, a
satellite tuner; a VHF/UHF tuner, or other broadcast data receiving
devices. The tuner 209 is coupled to a video decoder 210. In an
embodiment of the client computer system 110 where the tuner 209
receives analog broadcast data, the video decoder 210 operates to
decode the twenty-first line of the VBI in analog broadcast data
into closed captioning data in ASCII text and digitizes the analog
broadcast data. In an embodiment of the client computer system 110
where the tuner 209 receives digital broadcast data, the video
decoder 210 operates to retrieve a channel in the digital broadcast
that contains the closed captioning data. Closed captioning data is
transmitted simultaneously with a program and provides a textual
script of the dialog in the program in real-time.
[0034] A video decoder interface 212 is coupled to the video
decoder 210. The video decoder interface 212 operates as a serial
interface to retrieve the closed captioning data from the video
decoder 210. A video in direct memory access (DMA) engine 211 is
also coupled to the video decoder 210. The video in DMA engine 211
operates to coordinate movement of the digitized broadcast data
from the video decoder 210 to components in the client computer
system 110 via the bus 220. The video in DMA engine 211 allows the
digitized broadcast data to be transmitted to components in the
client computer system 110 at a fast rate without requiring
intervention from the processor 201.
[0035] A video out DMA engine 213 is coupled to the bus 220. The
video out DMA engine 213 operates to coordinate movement of the
digitized broadcast data from components in the client computer
system 110 to a video encoder 214. The digitized broadcast data may
include modification or additions made to it from the components in
the client computer system 110 such as the processor 201. The video
out DMA engine 213 allows the digitized broadcast data to be
transmitted from components in the client computer system 110 to
the video encoder 214 at a fast rate without requiring intervention
from the processor 201. The video encoder 214 is coupled to the
video out DMA engine 213. The video encoder 214 operates to format
the digitized broadcast data into a form that can be viewed by a
display device. According to an embodiment of the present invention
where the display device is configured to view analog broadcast
data, the video encoder 214 operates to format the digitized
broadcast data into an analog format.
[0036] A display device controller 215 is coupled to the video
encoder 214. The display device controller 206 allows coupling of a
display device to the client computer system 110 and operates to
interface the display device to the client computer system 110. The
display device controller 206 can be, for example, a monochrome
display adapter (MDA) card, a color graphics adapter (CGA) card, or
other display device controller. The display device (not shown) can
be a television set, a computer monitor, a flat panel display or
other display device. The display device receives broadcast data
from the video encoder 214 through the display device controller
206 and displays the information and data to the user of the client
computer system 110.
[0037] The present invention is related to the use of the client
computer system 110 to display HTML documents with video images.
According to one embodiment, displaying HTML documents with video
images is performed by the client computer system 110 in response
to the processor 201 executing sequences of instructions contained
in main memory 202 or ROM 203. Such instructions may be read into
memory 202 from another computer-readable medium, such as data
storage device 204, or from another source via the network
interface 205 or from the tuner 209. Execution of the sequences of
instructions causes the processor 201 to display HTML documents
with video images, as will be described hereafter. In an
alternative embodiment high-wired circuitry may be used in place of
or in combination with software instructions to implement the
present invention. Thus, the present invention is not limited to
any specific combination of hardware circuitry and software.
[0038] FIG. 3 is a block diagram showing modules 300 implementing
an embodiment of the present invention. In a preferred embodiment
of the present invention, the modules are implemented by software
and reside in main memory 202 as sequences of instructions. It
should be appreciated that the modules may also be implemented by
hardware as components coupled to the bus 220 or a combination of
both hardware and software.
[0039] Block 310 represents a broadcast data retriever 310. The
broadcast data retriever 310 operates to interface with the bus 220
and to coordinate movement of the digitized broadcast data from the
video decoder 210 with the video in DMA engine 211. The broadcast
data retriever 310 receives the digitized broadcast data from the
video in DMA engine 211 and separates the digitized broadcast data
containing a video image from broadcast data carrying other
information. In one embodiment, the other information is
broadcasted on the VBI.
[0040] Block 320 represents a VBI decoder. The VBI decoder 320 is
coupled to the broadcast data retriever 310 and receives the
digitized VBI from the broadcast data retriever 310. The VBI
decoder 320 operates to decode the digitized VBI into HTML code. It
should be appreciated that the HTML code may be decoded elsewhere
in the broadcast data.
[0041] Block 330 represents an HTML processor. The HTML processor
330 is coupled to the VBI decoder and receives the HTML code from
the VBI decoder 320. The HTML processor 330 interprets the HTML
code and generates a viewable HTML document from the HTML code. The
viewable HTML document may include for example an HTML form having
selectable multimedia identifiers. According to an embodiment of
the present invention, the HTML processor 330 may be a web
browser.
[0042] Block 340 represents a graphics processor 340. The graphics
processor 340 is coupled to the HTML processor 330 and the
broadcast data retriever 310 and receives the viewable HTML
document from the HTML processor 330 and broadcast data containing
a video image from the broadcast data retriever 310. The graphics
processor 340 operates to generate a graphical user interface (GUI)
that includes both the HTML document and the video image. According
to a first embodiment of the present invention, the graphics
processor 340 generates a GUI that includes a HTML document and a
video image from broadcast data positioned around the HTML
document. According a second embodiment of the present invention,
the graphics processor 340 generates a GUI that includes a HTML
document and a video image from broadcast data positioned such that
it has the appearance of being behind the HTML document. According
to a third embodiment of the present invention, the graphics
processor 340 generates a GUI that includes a video image from
broadcast data and a HTML document positioned on the GUI such that
the HTML document has the appearance of covering a section of the
video image.
[0043] The broadcast data retriever 310, VBI decoder 320, the HTML
processor 330, and the graphics processor 340 may be implemented by
any known circuitry or technique. According to an embodiment of the
present invention, the broadcast data retriever 310, VBI decoder
320, the HTML processor 330, and the graphics processor 340 all
reside in a single semiconductor substrate.
[0044] FIG. 4 illustrates an exemplary GUI as it appears on a
screen of a display 410 according to a first embodiment of the
present invention. The GUI 400 includes a video image from
broadcast data. The video image 400 from the broadcast data is
displayed such that it spans the entire length and width of the
screen of the display 410. According to this embodiment of the GUI
400, the video image from the broadcast data includes an image of
two sportscasters sitting behind a news desk 420 and a chart 421
directly above the two sportscasters that includes statistics about
a sporting event. An HTML document 430 is positioned on the GUI 400
such that it has the appearance of covering a section of the video
image and the video image from the broadcast data is positioned
such that it has the appearance of being behind the HTML document
430. The HTML document 430 includes a first multimedia identifier
431 and a second multimedia identifier 432 that are selectable to
deliver data to a remote computer system such as server computer
systems 130-132 (shown in FIG. 1). The first and second multimedia
identifiers may be, for example, hyperlinks to HTML documents on a
remote computer system that compile data for a survey. By
displaying the HTML document 430 and the video image in a single
window, the scale of the video image is maximized on the display
460.
[0045] FIG. 5 illustrates an exemplary GUI 500 as it appears on a
screen of a display 510 according to a second embodiment of the
present invention. The GUI 500 includes a video image from
broadcast data. The video image from the broadcast data is
displayed such that it spans the entire length and width of the
display 510. According to this embodiment of the GUI 500, the video
image from the broadcast data includes an image of an actor 520
from a television show. An HTML document 530 is positioned on the
GUI 500 such that it has the appearance of covering a section of
the video image and the video image from the broadcast data is
positioned such that it has the appearance of being behind the HTML
document 530. The HTML document 530 includes a first multimedia
identifier 531 and a second multimedia identifier 532 that are
selectable to deliver data from a remote computer system such as
server computer systems 130-132 (shown in FIG. 1). The first and
second multimedia identifiers may be, for example, hyperlinks to
HTML documents on a remote server relating to information about the
television show or profiles of the actor of the television
show.
[0046] FIG. 6 illustrates an exemplary GUI 600 as displayed on a
display 610 according to a third embodiment of the present
invention. The GUI 600 includes a video image from broadcast data.
The video image from the broadcast data is displayed such that it
spans the entire length and width of the screen of the display 610.
According to this embodiment of the GUI 600, the video image from
the broadcast data includes an image of a first actor 620 and an
image of a second actor 621 from a television show. An HTML
document encoded with the broadcast data defines an area
surrounding the first actor 620 and the second actor 621 as a input
device-sensitive region or a "hot spot" on the GUI 600. According
to an embodiment of the present invention, the hot spot is
highlighted to indicate its presence. It should be appreciated that
the hot spot may be transparent. According to an embodiment of the
present invention, when a pointer 630 from an input device 207
(shown in FIG. 2) points to the hot spot, text 640 appears next to
the hot spot indicating what information will be presented when the
hot spot is selected by the input device 207. The text may include
for example merchandise information regarding items used in the
television program. The hot spots may be hyperlinks to HTML
documents on a remote computer system such as server computer
systems 130-132 (shown in FIG. 1) that include the information.
[0047] FIG. 7 is a flow chart illustrating a method for displaying
a HTML document with a video image according to an embodiment of
the present invention. At step 701, HTML code is decoded from
broadcast data. The broadcast data may be for example broadcast
data originating from a broadcast data source that includes a
television program. According to an embodiment of the present
invention, the HTML code is decoded from a VBI of the broadcast
data using a VBI decoder. According to an alternate embodiment of
the present invention, the HTML code is decoded elsewhere from the
broadcast data.
[0048] At step 702, a video image from the broadcast data is
displayed on a display. According to an embodiment of the present
invention, the video image is displayed substantially over the
entire display such that the video image spans the entire length
and width of the display.
[0049] At step 703, the HTML code is interpreted to generate an
HTML document. According to the present invention, the HTML code
may be interpreted using a web browser.
[0050] At step 704, the HTML document is displayed on the display
with the video image. According to a first embodiment of the
present invention, the HTML document and the video image are
displayed on the same window. By displaying the video image and the
HTML document on a single window, the video image may be displayed
without reducing its scale. According to a second embodiment of the
present invention, the video image is positioned around the HTML
document. According to a third embodiment of the present invention,
the video image is positioned such that it has the appearance of
being behind the HTML document. According to a fourth embodiment of
the present invention, the HTML document is displayed with the
video image such that the HTML document has the appearance of
covering a portion of the video image.
[0051] In the foregoing specification, the invention has been
described with references to specific embodiments thereof. It will,
however, be evident that various modifications and changes may be
made thereto without departing from the broader spirit and scope of
the invention. The specification and the drawings are, accordingly,
to be regarded in an illustrative rather than a restrictive
sense.
* * * * *