Patent Application of
Bruce H. Penrod,
1625 S. Birch St. #109 Denver, Co. 80222,
resident and Citizen of Colorado, U.S.A, and
Mark A. Bogani,
8899 E. Prentice Ave. #5206 Greenwood Village, Co. 80111
resident and Citizen of Colorado, U.S.A
SPECIFICATION
Title of Invention
- ------------------
System and Device to capture, collect, sort, distribute and display digital
images of original art works via a slide show utilizing high-resolution video
media.
Cross-References to Related Applications (if any)
- -------------------------------------------------
None
Statement as to rights to inventions made under Federally sponsored research and
- --------------------------------------------------------------------------------
development (if any)
- --------------------
None
BACKGROUND
- ----------
1. Field of the Invention
This invention relates to the art of digital imagery, and more specifically
to digital imagery utilized for the display of art works in a number of
commercial venues and private residences via a slide and video show utilizing
high-resolution video media including television sets and projection onto walls
or screens therefor.
2. Description of Prior Art
Currently, means of exhibiting visual works of art consist of a) physical
display, such as display in an art gallery, art show, at an individual's home or
1
in an office; and b) non-physical display, such as Internet art gallery sites
with small images for review, screen savers of various kinds and art
publications/ books. These methods work in narrow, specific applications, such
as locating works of a known artist but do not serve to broadly expose new
artists. Artists must find venues to display their art so that it is seen,
accepted and purchased by the public. This may involve local art shows, which
may have limited public appeal and limited marketing utility.
A rotating display of art images is also known, such as that accomplished
by a commercial screen saver published by Microsoft (e.g., Microsoft Scenes).
But this screen saver is not adapted to jointly exhibit both the art and the
artist. Like many others, it only exhibits works of art seriatim, and does not
provide specific presentation of artists in an educational manner. In addition,
the 'inventory' of prior screen savers is limited to relatively few pictures and
when observed over a long period, these transition effects become anticipatory
and somewhat monotonous. Such a system does not facilitate learning by
association of artists' likenesses and/or backgrounds and their respective works
within a presentation group, nor serve to present the artists' works to
potential buyers.
Currently, enjoyment of artwork requires initiative. People must actively
go out and seek artwork at an art show, art gallery or museum. These are not
passive activities where a person could sit and enjoy the artwork at their
leisure. There exists a need for a show allowing passive enjoyment.
There are commercial venues where there is a need for some type of silent,
non-intrusive entertainment. These are venues like restaurants, stores or a
quiet bar, in which any entertainment must not conflict with normal
conversation. This type of entertainment need is not currently being met.
2
In just the last few years the whole digital world has exploded with
impressive new products and services. Among these is high-definition television
technology, also used in computer monitors and large-scale commercial video
displays, in which far more pixels are used to present an image. This new
technology has unexplored uses and opportunities. It has been used in malls and
other such forums for entertainment and advertising.
A need exists for silent, passive entertainment, and a better method for
artists and promoters to display and market their work.
SUMMARY OF THE INVENTION.
- -------------------------
One object of the present invention is to provide entertainment, which
gives value to venues, patrons and advertisers.
An additional object of the present invention is to provide an inexpensive
and efficient method for artists and promoters to display and sell their artwork
to a broad, far-flung audience.
A further object of the invention is to provide an opportunity to expose
the public to high definition television/display technology.
The process of the present invention consists of capturing and collecting
digital images of original art works, sorting these images into working sets or
groupings, distributing and displaying the digital imagery in a number of
commercial venues and private residences via a slide and video show utilizing
high-resolution video media including television sets and projection onto walls
or screens.
The process will serve to 1) expose artists' works to a broad audience, 2)
entertain its audience; and 3) introduce that audience to dazzling new
'high-definition' displays, generally defined as having XGA resolution or
higher.
3
This process benefits all parties. 1) Artists gain exposure and sales of
originals and reproductions from remote locations; where heretofore their work
was only available at a physical gallery or upon an Internet search conducted by
a potential patron - an unlikely thing. 2) Venues benefit from providing
entertainment to patrons, helping to attract and keep more patrons (i.e. bars
are able to sell more drinks, restaurants are able to sell more food, stores to
sell more items). 3) Television and projector manufacturers can now expose their
impressive new 'high-definition' displays to a broad, general audience which are
candidates to go out and purchase these new-generation displays for their homes.
4) The public is exposed to enjoyable art without the requirement to seek out
galleries and museums and take the time to go see the art (i.e. their role is
passive). The show will solicit advertising and charge fees to artists and some
venues.
One of the technological innovations of recent times is digital imagery, in
which pictures are recorded digitally. One advantage is that such images can be
transmitted and reproduced without any loss of picture quality, since the file
is either received in full or not at all. Since this process expects to receive
digital art files from numerous remote locations (where artists live and work)
and sort and combine them for distribution to numerous remote locations (public
venues around the U.S. and else where), the ability to transmit files over the
Internet is quite important.
The process will utilize the Internet in several ways. Artists will arrange
to photograph or scan their works of art (or other type of digital image, such
as landscapes) in jpeg format. These images will be `uploaded' to a web site
administered for the purpose of receiving artwork, securing legal releases from
the artist, collecting fees, and explaining to artists the rules governing the
system.
4
A second web site (the "Public Web Site"), will be for the public to
inquire about 1) home service and 2) individual art pieces they may have seen in
a public display (identified by serial number displayed alongside the piece). An
inquiry about a particular artwork will yield the artist's personal information,
information about the piece, sale prices of original and/or reproductions, and
contact information for both the artist and the Broadcast Art Show.
In addition to the above, the process will utilize a wide area network
('WAN') over the Internet to move digital art files and advertising files to the
numerous remote ('satellite') sites at the display venues and receive reports
back on operating data. The 'satellite' site will be connected to the Internet
via conventional hard wire, radio, or satellite direct broadband.
The process is more efficient, effective, accurate and functional than the
current art.
Brief Description of the Drawing.
- ---------------------------------
Without restricting the full scope of this invention, the preferred form of
this invention is illustrated in the following drawings:
FIG 1 shows an overview of the system.
FIG 2 shows the flow of the digital image from collection to display, and
FIG 3 shows the flow of the digital image to and from the collection web
site, and
FIG 4 shows one possible end use variation from the collection web site.
DESCRIPTION OF THE PREFERRED EMBODIMENT
- ---------------------------------------
The preferred embodiment of the invention is a process consisting of
soliciting and collecting digital images of original art works, sorting those
images into working sets or groupings, distributing and displaying the digital
5
imagery in a number of commercial venues and private residences via a slide show
utilizing high-resolution video media including television sets and projection
onto walls or screens.
Referring initially to FIG. 1, the major steps of the process are set
forth. The artists 5 and promoters 10, such as Gallery Owners capture 30 the
artwork via digital imagery, creating a digital image 20, which artwork can be
paintings, prints, artistic photographs, computer generated art, sketches or any
other type of artwork, and upload to the system 1. The system collects the
captured images 20 of the artwork 20 by maintaining a Collection website 40 for
receiving such images 20 from artists 5 and promoters 10. A digital image can be
achieved by digital photography, digital scanning, or generating a digital file
on computer, which file is then transmitted to the system 1 via the Internet
500. The images 20 are captured 30 in a standard format such as jpeg, which is
well known in the art. The system 1 then prompts a human review 50 of the images
20 to decide to accept 60 or reject 70 the submitted images 20. Rejected images
are discarded; accepted images are placed in queue for file review 80. Images 20
which are accepted 60 for display generate an invoice to the submitting party,
and a charge 65 will be issued to the artists 5 or promoters 10. Once accepted,
image files 20 are reviewed 80 for technical correctness, including format and
size. At this point each digital image 20 is issued an identifying code to
reflect artist and type of art. These codes can be used to construct groupings
40 which include the desired mix of art type and authorship.
The accepted images 20 are compiled 90 into groups or groupings 100 for
presentations. Broadcast Art Show may solicit advertising 85 from a variety of
sources. Such advertising may be stills (jpeg) or video (mpeg). This advertising
6
will be inserted into the groups 100 as appropriate. These groups 100 are then
transmitted to distant locations or remote venues 120. These groups 100 are
displayed in remote locations 120 using any one of a number of standard display
devices. IN the preferred embodiment, displays to be used in the system will be
front projection (onto a wall or a screen mounted on a wall). It is also
possible the system will utilize rear projection 'big screen' televisions in
certain locales and even CRT (cathode ray tube) and plasma-based monitors in a
few instances. In the preferred embodiment, all of the image 20 files will be
jpeg for stills, mpeg for videos. The groupings 100 are a collection of
individual jpegs and mpegs. In addition, groupings 100 are stored into the
public website 140 where the art show will be made available over the Internet
500 just as it is offered in the many remote locations 120.
The process is designed to capture, collect, sort, distribute and display
digital imagery, primarily images of original art works, in a number of
commercial venues and private residences via a slide and video show utilizing
high-resolution video media including, but not limited to, television sets and
projection onto walls or screens. The system 1 serves to 1) expose artists'
works to a broad audience; 2) entertain its audience; and 3) introduce that
audience to dazzling new `high-definition' displays, generally defined as having
XGA resolution or higher, which is far better than the conventional analog
television signal currently the norm.
One of the technological innovations of recent times is digital imagery.
Digital imagery is well known in the art with some of the more common methods
being digital photography and scanning. One advantage is that such images can be
transmitted and reproduced without any loss of picture quality, since the file
is either received in full or not at all. Since the system is intended to
receive art digital files from numerous remote locations, such as where the
7
promoter and artist live and work, and sort and combine them for distribution to
numerous remote locations and public venues, the ability to transmit digital
files over the Internet is quite important.
The system 1 will utilize the Internet 500 in several ways. Artists 5 and
promoters 10 will digitally image (scan, photograph, or computer generate) their
works of art in jpeg format producing an image 20 picture. These images 20 will
be 'uploaded' to the collection web site 40 administered by system 1 for the
purpose of receiving art work, securing legal releases from the artist,
collecting fees, and explaining to artists the rules governing the system 1.
Access to the collection web site 40 can be accomplished directly through a
local Internet service provider, often referred to as ISPs or through an on-line
service provider. The artists 5 and promoters 10 contact the collection web site
40 using an informational processing system capable of running an HTML-compliant
Web browser such as Microsoft's Internet Explorer, Netscape Navigator, Lynx and
Mosaic, for example. A typical personal computer with an operating system
running a Web browser can be used. Those skilled in the art can conclude that
any HTML (Hyper Text Markup Language)-compatible web browser is within the true
spirit of this invention and scope of the claims.
The collection web site 40 uses a typical Web page in HTML format. The
method begins with the display of the collection Web 40. The Artists 5 and the
promoters 10 connect to the collection web site 40 using a compatible web
browser to access Internet 500 as disclosed above. The collection web site 40
will have numerous data entry fields. The first time that artists 5 use the web
site 40 they will be prompted for information regarding themselves and the
artwork 20 that they plan to submit. The artists 5 must register on the
8
collection web site 40 in order to get an artist's registration number. This
artist's registration number is used to identify the artist. Registration may
include some or all of the following data: name, address, and social security
number, biography, a digital picture of the of artist 5 or the artist's 5 studio
or both, the artist's 5 contact information, a self-descriptive narrative from
the artist describing his/her art, theories, any awards or shows of note, and
anything else he/she wants the public to see upon inquiry. An encrypted field
can be included which includes the artist's billing information. In the
preferred embodiment the artists 5 and promoters 10 may pay a fee to have works
exhibited. When first registering there is no charge--only after a submitted
work is accepted for display. The billing information will be the standard
information needed such as credit card number, expiration date, billing address,
etc. The artist 5 may input their e-mail address. There will also be an
affirmative copyright permission button that gives permission to display the
artwork. After all of the required fields are completed, the artist 5 or
promoter 10 will be prompted to upload the digital image 20 of the artwork 20.
Upon registration, the system 1 will create and assign each artist 5 a
unique folder on the collection site 40 that will receive their uploaded digital
image files 20. When a digital image file 20 is uploaded it will included the
title, date, and any narrative about the artwork uploaded and whether the
original or any reproductions are for sale and the price.
In the preferred embodiment, to help promote the use of the system 1, the
system 1 will permit artists 5 and promoters 10 to submit artwork for contests
in which prizes are to be awarded to the artists 5 based on their artwork 20.
This will increase the volume of artists 5 who use the system 1 increasing the
number of artworks 20 that can be displayed. The collection web site 40 will
have a web page that contains a list of current contests and prizes available.
9
The collection web site 40 may have an Overview section explaining the system 1
to the artist 5. The collection web site 40 will have a FAQ (Frequently Asked
Questions) section. The collection web site 40 in the preferred embodiment gives
the prices charged to the Artist 5 for the services. Access to the collection
web site 40 can be accomplished directly through a local Internet Service
Provider, often referred to as ISP's or through an on-line service provider.
Upon upload, the digital image 20 will be collected 40 by the system 1 and
placed in queue for human review 50 for acceptance 60 into the show or rejection
70. If accepted, the artist or promoter will be charged 65 the agreed upon fee
for display. Once accepted, the digital file is submitted to a technical file
check or file review 80 to make sure the image 20 is in a proper format, not
corrupted and is the proper file size. After the file check 80 is completed, the
image 20 is assigned a unique serial number 82. The artist's name and the serial
number may be digitally added to the border of the image 25 during the
recompiling process 84.
Referring again to Fig. 1, at this point, the digital images 20 are
compiled 90. The compiled art 90 comprises the groupings 100. In one preferred
embodiment, these groupings 100 are based on consecutive serial numbers. This
will allows for a large variety in the types of artwork in a grouping.
Alternatively, the groupings 100 could be based on styles or types of art works
or an individual artist 5. In one embodiment, the groupings 100 are interspersed
between advertising video sequences 85 in which the artwork images 20 are shown
in sequence for a select period of time. The advertising video sequences 85 are
comprised of both still segments and video segments. The period of time that the
still images are shown will be approximately one to three minutes in the
preferred embodiment.
10
There is an industry move to digital imagery since, under old analog
systems, outlying areas could receive 'ghost' transmissions with considerable
interference. Digital signals, on the other hand, are either perfect or they
don't arrive at the set, so the reproduction is either identical to the source
or non-existent. The system will make good use of this digital, higher
definition in jpeg still images and mpeg videos. While in the preferred
embodiment, all displays to be used in the system will accept digital signals,
and the company intends to use primarily front projectors (onto a wall or a
screen mounted on a wall) such as a Toshiba TLP 670, for example, it is possible
the show will utilize rear projection `big screen' televisions in certain
locales and even CRT (cathode ray tube) and Plasma-based monitors ("displays")
in a few instances. With all these systems, the ability to display digital
signal sources will make the appliance suitable for the new digital television
broadcasts as they appear.
In the preferred embodiment the system 1 will use software to complete the
complicated requirements of the Art Show. The operating system will likely be
Windows 2000 Server and the software can be written in a standard programming
language such a C, for example, and interact with both collection website 40 and
website 140 using standard programming languages, formats and processes that are
already known in the art.
Fig. 2 shows a data flow of the software having the following steps: The
collection web site 40, accepts 60 and compartmentalizes newly 'uploaded'
digital files submitted by artists, it places the submission in a review process
for acceptance into the 'show' or grouping 100, if accepted it checks 80 the
file size and flags the digital image 20 for digital re-mastering, it assigns
11
each file a serial number 82 based on artist, medium and type of art, it
re-compiles 84 digital art work images 20 into discreet `shows' or groupings 100
along with advertising segments 85. Groupings 100 are comprised of stills and
advertising videos 85. Each assigned serial number will consist of a series of
unique numbers or letters.
Referring to Fig. 3, in addition to the above, the system 1 may utilize a
wide area network ('WAN') 600 to move the groupings 100 of the digital art
images 20 and advertising video sequences 85 to the numerous remote
('satellite') sites 120. The public will have access to the public web site 140
via Internet 500 using conventional hard wire, radio, or satellite direct
broadband or any other type of Internet connection means. In alternative, the
groupings 100 can be loaded to a computer hard drive or written to a CD-ROM
(compact disc) or DVD (digital video disc) for subsequent distribution to remote
sites 120.
Again referring to Fig. 3, the software will run the show at the remote
(satellite) locations 120. The satellite software will dictate pace, selection,
advertising inserts, accept and store updates, and report on usage. In the
preferred embodiment, the hardware at the satellite site 120 will include a PC
(personal computer) with operating system, large storage media (hard drives/cd
roms/dvdiscs) and software to produce the show, interspersing artistic videos
and slides, advertising stills and advertising videos into the flow of the art
show. Advertising images will be injected between the displays of images 20. The
advertisers will either be based on the venue that the groupings will be shown
or be major brand advertisers. In the preferred embodiment, these advertising
images are stored and retrieved from a large storage media on the hardware at
the satellite site 120.
12
As shown in Fig. 3, a second web site, the public web site 140, which is
completely removed from the first collection web site 40, will be for the public
125 to inquire about 1) home service and 2) individual art pieces they may have
seen in a public display. These works are identified by serial number displayed
alongside the piece on the image 20. Inquiries related to this serial number
yield artist's information, information about the piece, sale prices of original
and/or reproductions and artist contact information.
The system 1 will administer the Public Web Site 140 to handle inquiries on
pieces, the show, home version, etc. The system is designed to allow artists 5
to sell originals or reproductions of their art works directly to buyers
generated by the system.
The public may contact the public web site 140 using an informational
processing system capable of running an HTML-compliant Web browser such as
Microsoft's Internet Explorer, Netscape Navigator, Lynx and Mosaic, for example.
The public could use a personal computer with an operating system running a web
browser. The exact hardware configuration of computer used by the public, the
brand of operating system or the brand of Web browser configuration is not
critical to the operation of the present invention.
The public web site 140, shown in Figs. 1, and 3, will have the following
functionality. It will have access to a database that stores all art works by
serial number, type of art and artist's name, permitting inquiry about work,
price, artist, and possible digital file acquisition. This database will be in
an industry standard format such as SQL. The web site 140 will allow inquires to
the database. The public web site 140 may have an option for the public 125 to
view a slide show similar or identical to that on public display from a computer
terminal. The public web site 140 may have a link to a web page that offers
13
information to prospective public venues interested in offering the show and
information to prospective homeowners interested in the home version (without
advertising) of the show, for which a fee will be charged. The public web site
140 may have a web page that will offer an overview of the system to any
interested parties (artists, venue owners, potential advertisers and consumers)
and may give contact information to a home office. The public web site 140 may
have biographical and self-description information about individual artists.
As shown in Fig. 4, the process is designed to achieve sales of digital
files of specific art works for a modest price to users 310 wanting a 'library'
305 of favored art works for display at home. Images displayed on the web site
140 can be 'watermarked' or otherwise protected from download, hopefully
encouraging buyers to pay for individual pictures. This watermarking will be
done using standard secure processes that are well known in the art. The public
web site 140 will include purchase information and a shopping cart interface
allowing patrons to purchase individual pieces for their personal libraries.
Such shopping cart web pages are well known in the art and are not cover here.
In the preferred embodiment, there are three categories of art to be shown:
1-images of paintings, 2-computer-generated art and 3-natural photography, such
as pictures of scenes in National Parks, for example.
Alternative Embodiments
- -----------------------
In an alternative embodiment, the system could be used to capture, collect,
group and distribute digital video files from video artists and promoters. Any
digital video format could be used but in the preferred embodiment, the jpeg and
mpeg formats will be used.
14
Advantages
- ----------
The previously described version of the present invention has many
advantages. The intent is to develop a process that allows a broader audience to
view and appreciate the artwork in a method that is easier, less expensive, less
labor intensive and more efficient. The process benefits all parties. Artists
gain exposure and sales of originals and reproductions from remote locations,
where heretofore their work was only available at a physical gallery or upon an
Internet search conducted by a potential patron (an unlikely thing). Venues
benefit from providing entertainment to patrons, helping to attract and keep
more patrons (i.e. bars able to sell more drinks). They can offer silent
entertainment that adds to the atmosphere of the venue. Television and projector
manufacturers expose their impressive new `high-definition' displays to a broad,
general audience, which are candidates to go out and purchase these
new-generation displays for their homes. The public is exposed to enjoyable art
without the need to seek out galleries and museums and take the time to go see
the art (their role is passive).
Although the present invention has been described in considerable detail
with reference to certain preferred versions thereof, other versions are
possible. For example, the file could use a different format or a new protocol
to communicate with the system or different types of artwork may be communicated
or it could be used in an Intranet environment. Therefore, the point and scope
of the appended claims should not be limited to the description of the preferred
versions contained herein.
15
CLAIMS
That which is claimed:
1. A process comprising the steps of:
a) using a capturing means to capture the image of artwork,
b) using a collecting means to collect the images of the artwork,
c) using a grouping means to sort those images into a grouping,
d) using a distribution means to distribute the grouping, and
e) using a displaying means to display the grouping containing the images
of the artwork.
2. A process comprising the steps of:
a) creating one or more digital image files of artwork,
b) transmitting the digital image file,
c) collecting the digital image file,
d) accepting or rejecting the digital image file,
e) compiling the accepted digital image files to form a grouping,
f) transmitting the grouping of digital image files, and
g) displaying the grouping.
3. The process of Claim 2, further including combining advertising files with
the accepted digital image files into the grouping.
4. The process according to claim 2 wherein the digital image files are jpeg
and mpeg files.
5. The process according to claim 2 wherein the artist takes a digital photo
or scans a picture to create the digital image file.
16
6. The process according to claim 2 wherein the grouping is transmitted over
Internet.
7. The process according to claim 2 wherein the grouping is transmitted by
making a cd-rom or dvd of the grouping and physically transferring the cd-rom or
dvd.
8. The process according to claim 2 wherein the grouping is transmitted over
Internet to remote locations.
9. The process according to claim 2 wherein the digital image is transmitted
to a collection web site.
10. The process according to claim 2 wherein the grouping is displayed on a
public web site.
11. The process according to claim 2 wherein the grouping is displayed by
projection onto a wall or screen.
12. The process according to claim 2 wherein the grouping is displayed on a
personal computer.
13. The process according to claim 2 wherein the grouping comprises a
combination of jpeg and mpeg digital image files.
Abstract of the Disclosure
--------------------------
The invention disclosed consists of a process that consists of the steps
capturing and collecting digital images of original art works, sorting those
images into working sets or groupings, distributing and displaying the digital
imagery of the sets or groups in a number of commercial venues and private
residences via a slide show utilizing high-resolution video media including
television sets and projection onto walls or screens. This process will serve to
1) expose artists' works to a broad audience widely distributed throughout a
broad geographic area, 2) entertain its audience; and 3) introduce that audience
to dazzling new 'high-definition' displays, generally defined as having XGA
resolution or higher.
17
- - - - - - -
| |
-------
| | | |
| 5 |->--| ------ ------ ------
| | | | | | | | | | |
------- |--->| 30 |--->| 20 |------>| 40 | ------500
| | | | | | | | |
------- | ------ ------ ------
| |->-- | | |
| 10 | |
| |<------- | | |
------- \ - - - | - - -
\ |
\ \|/
\ ------- -------
\ | | | |
\ | 50 |--->| 70 |
\ | | | |
\ ------- -------
\ |
\ |
\ \|/
\ ------- -------
\ | | | |
\_| 65 |<---| 60 |
| | | |
------- -------
|
|
\|/
------- -------
| | | |
| 85 | | 80 |
| | | |
------- -------
\ /
\ /
\ /
_\/------- \/_
| |
| 90 |
| |
-------
|
|
\|/
-------
| |
| 100 |
| |
/ ------- \
- - - - - - /- \
| \/_ | _\/
------- -------
| | | | | |
500-- | 140 | | 120 |
| | | | | |
------- -------
| |
- - - - - - -
Fig. 1
18
-------
| |
| 20 |
| |
-------
|
|
\|/
-------
| |
| 40 |
| |
-------
|
|
\|/
-------
| |
| 50 |
| |
-------
|
|
\|/
------- -------
| | | |
| 60 |--->| 70 |
| | | |
------- -------
|
|
\|/
-------
| |
| 80 |
| |
-------
|
|
\|/
-------
| |
| 82 |
| |
-------
|
|
\|/
-------
| |
| 84 |
| |
-------
|
|
\|/
------- -------
| | | |
| 90 |<---| 85 |
| | | |
------- -------
|
|
\|/
-------
| |
| 100 |
| |
-------
Fig. 2
19
-------
| |
| 1 |
| |
-------
|
|
\|/
-------
| |
| 100 |
| |
-------
|
|
|
|
|
- - - - - | - - - - -
| -------|-------- |
| \|/ | 500
| | ------- | | -------
| | | | | |
| | | 140 |-------------------| 125 |
| | | | | |
| | /-------\ | | -------
| / | \ | 600
| -/-----------\-- |
- -/- - - | - - -\- -
/ | \
/ | \
\/_ \|/ _\/
------- ------- -------
| | | | | |
| 120 | | 120 |--->| 120 |
| | | | | |
------- ------- -------
Fig. 3
20
- - - - - - - - - -
| ------- |
| |
| | 140 | |--- 500
| |
| ------- |
- - - - - | - - - -
|
|
-------
| |
| 305 |
| |
-------
|
|
-------
| |
| 310 |
| |
-------
Fig. 4
21