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Rose electronics Caretaker Plus Automatic Switch User Manual

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(12)
United
States
Patent
Beasley
et
a1.
US007818367B2
US
7,818,367
B2
*Oct.
19,
2010
(10)
Patent
N0.:
(45)
Date
of
Patent:
(54)
(75)
(73)
(21)
(22)
(65)
(63)
(51)
(52)
(58)
COMPUTER
INTERCONNECTION
SYSTEM
Inventors:
Danny
L.
Beasley,
Mukilteo,
WA
(US);
Robert
V.
Seifert,
Jr.,
Redmond,
WA
(US);
Paul
Lacrampe,
Seattle,
WA
(US);
James
C.
Huf?ngton,
Edmond,
WA
(US);
Thomas
Greene,
Bellevue,
WA
(US);
Kevin
J.
Hafer,
Woodinville,
WA
(US)
Assignee:
Avocent
Redmond
Corp.,
Redmond,
WA
(US)
Notice:
Subject
to
any
disclaimer,
the
term
of
this
patent
is
extended
or adjusted
under
35
U.S.C.
154(b)
by
1214
days.
This
patent
is
subject
to
a
terminal
dis
claimer.
Appl.
N0.:
11/129,443
Filed:
May
16,
2005
Prior
Publication
Data
US
2005/0232260
A1
Oct.
20,
2005
Related
US.
Application
Data
Continuation
of
application
No.
09/
683,582,
?led
on
Jan.
22,
2002,
noW
Pat.
No.
7,113,978,
Which
is
a
continuation
of
application
No.
09/590,170,
?led
on
Jun.
9,
2000,
noW
Pat.
No.
6,345,323,
Which
is
a
con
tinuation
of
application
No.
09/244,947,
?led
on
Feb.
4,
1999,
noW
Pat.
No.
6,112,264,
Whichis
a
continua
tion
of
application
No.
08/969,723,
?led
on
Nov.
12,
1997,
noW
Pat.
No.
5,884,096,
Which
is
a
continuation
ofapplication
No.
08/519,193,
?led
on
Aug.
25,
1995,
noW
Pat.
No.
5,721,842.
Int.
Cl.
G06F
15/16
(2006.01)
G06F
3/00
(2006.01)
US.
Cl.
........................
..
709/203;
709/208;
710/38
Field
of
Classi?cation
Search
...............
..
709/203,
709/208;
710/38
See
application
?le
for
complete
search
history.
(56)
References
Cited
U.S.
PATENT
DOCUMENTS
3,541,541
A
11/1970
Engelbert
(Continued)
FOREIGN
PATENT
DOCUMENTS
CA
2
072
198
12/1992
(Continued)
OTHER
PUBLICATIONS
Defendant
Rose
Electronics’
Answer
and
Defenses,
Avocent
Redmond
Corp.
v.
The
United
States,
Civil
Action
No.
08-CV-00069
(LSM),
United
States
Court
of
Federal
Claims,
May
12,
2008.
(Continued)
Primary
ExamineriYves
Dalencourt
(74)
Attorney,
Agent,
orFirmiDavidson
Berquist
Jackson
&
GoWdey
LLP
(57)
ABSTRACT
A
computerized
switching
system
for
coupling
a
Workstation
to
a
remotely
located
computer.
A
signal
conditioning
unit
receives
keyboard
and
mouse
signals
generated
by
a
Work
station
and
generates
a
data
packet
Which
is
transmitted
to
a
central
crosspoint
sWitch.
The
packet
is
routed
through
a
crosspoint
sWitch
to
another
signal
conditioning
unit
located
at
a
remotely
located
computer.
The
second
signal
condition
ing
unit
applies
the
keyboard
and
mouse
commands
to
the
keyboard
and
mouse
connectors
of
the
computer
as
if
the
keyboard
and
mouse
Were
directly
coupled
to
the
remote
computer.
Video
signals
produced
by
the
remote
computer
are
transmitted
through
the
crosspoint
sWitch
to
the
Workstation.
Horizontal
and
vertical
sync
signals
are
encoded
on
to
the
video
signals
to
reduce
the
number
of
cables
that
extend
betWeen
the
Workstation
and
the
remote
computer.
The
signal
conditioning
units
connected
to
the
Workstations
include
an
onscreen
programming
circuit
that
produces
menus
for
the
user
on
a
video
display
of
the
Workstation.
20
Claims,
13
Drawing
Sheets
62
/
COMPUTER
E
CIIMFUTER
A
Page view 0
1 2 3 4 5 6 ... 29 30

Summary of Contents

Page 1 - Patent:

(12) United States Patent Beasley et a1. US007818367B2 US 7,818,367 B2 *Oct. 19, 2010 (10) Patent N0.: (45) Date of Patent: (54) (75) (73) (21) (22) (

Page 2

Page 3

US. Patent 0a. 19, 2010 Sheet 2 0f 13 US 7,818,367 B2 i E E2 ?vop V w mg as; g E 3% 350A _ 5 $5 5 2 =2 ?XX A i 55S E52 5260A V , ESQ / g E a =2 5 v00

Page 4

US. Patent 0a. 19, 2010 Sheet 3 0f 13 US 7,818,367 B2 $2 ‘3 NW3 am“ a“: w“: ‘W: NM“ 535.“ :Sm MMSES‘ E3 $2.“ sguwm mmmmgw .E?m. 55% 222mm S??kg BS .w?

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Page 6

US. Patent 0a. 19, 2010 Sheet 5 0f 13 US 7,818,367 B2 MASTER 150 CPU "’ 158 l l 156% 1,5214 "'81 4 7 < > C1 4 I / \1 60 V/// _

Page 7

US. Patent 0a. 19, 2010 Sheet 6 0f 13 US 7,818,367 B2 Ea 2E2 \ SHE 5) .% <WQ§ h. ||||||||||||||||||||||||||||||||||||||||||||||||| L ‘I I I I l | I

Page 8

US. Patent Oct. 19, 2010 Sheet 7 0f 13 T0 MASTER CPU CPU M 180 183“ 160A DIGITAL BA CI?’LANE N182 I6X16‘ DIGITAL US 7,818,367 B2 ,/154 “#160 DIGITAL C

Page 9

US. Patent 0a. 19, 2010 Sheet 8 0f 13 US 7,818,367 B2 182 I88 186 58 VS 1 ‘f [ cow 1 VS 2 MP 2 mm coup#1s coupw comlsz WS#32

Page 10

US. Patent 0a. 19, 2010 Sheet 9 0f 13 US 7,818,367 B2 182 ?y. é’. (X3) 9-16 230 232 234 236 THE VIDEO BUS USES‘ 8 8X4 SWITCHES PER COLOR. TOTAL VIDEO

Page 11 - >~mé~

US. Patent 0a. 19, 2010 Sheet 10 0f 13 US 7,818,367 B2 MEQE 25E Quin] .93 N3 $2.“ ESE > 5% SE 95m. > m3 \ mm ‘mm $2.“ Sim m 3 §N~1HH1S E: 25 >

Page 12 - EEEEWQQ

US 7,818,367 B2 Page 2 4,051,326 4,054,911 4,081,797 4,101,959 4,124,889 4,177,514 4,213,015 4,243,984 4,310,720 4,371,702 4,371,751 4,371,752 4,381,4

Page 13

US. Patent 0a. 19, 2010 Sheet 11 0113 US 7,818,367 B2 “cw/H32 v 3 2E 251 | IQ Na 2: 5 223 g 2: 5 2E mla SQ “Ema - 2m + - in m»: 2% km.“ - >. I E -

Page 14 - "’

Page 15 -

Page 16 - 7,818,367

Page 17

Page 18 - SWITCHES‘

Page 19 - §N~1HH1S

Page 20 - “cw/H32

Page 21

Page 22

Page 23

US 7,818,367 B2 Page 3 5,489,947 A 2/1996 Cooper 6,154,600 A 11/2000 Newman et a1. 5,491,743 A 2/1996 Shiio et a1. 6,307,556 B1 10/2001 Ellenbyetal. 5

Page 24

Page 25

US 7,818,367 B2 Page 4 JP 4-177525 6/1993 JP 5-158451 6/1993 JP 05158451 6/1993 JP 05181445 7/1993 JP 5-210383 8/1993 JP 5-227453 9/1993 JP 5-265977 1

Page 26

US 7,818,367 B2 Page 5 “LANtastic” by Artisoft Corporation, Ad in PC Magazine, Apr. 14, 1992, p. 6. “Macintosh Monitor Sense Codes: Technical Descript

Page 27

US 7,818,367 B2 Page 6 Brooktree Application Note 12, Analog Signal Interference Tech niques, Sep. 15, 1991. Brooktree product catalog, Jan. 20, 1995.

Page 28

US 7,818,367 B2 Page 7 Rose Electronics Caretaker Automatic Switch brochure. Rose Electronics Caretaker Plus Printer Sharing Made Easy product bulleti

Page 29

US 7,818,367 B2 Page 8 Tinnelly, ‘Key’ Synchronizes Video Inputs, Electronic Buyers’ News, Issue 894, Mar. 7, 1994. TopWare Local Area Network O.S., O

Page 30

US 7,818,367 B2 Page 9 NetAlarm 3 .1 Offers Pager, E-Mail Alerts, by Nico Krohn, PC Week, Jun. 22, 1992. Noti?cation of Reasons for Rejection (Oct. 17

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