`
`(12) United States Patent
`(10) Patent No.:
`US 7,295,128 B2
`l’etite
`(45) Date of Patent:
`*Nov. 13, 2007
`
`(54) SMOKE DETECTION METHODS, DEVICES,
`AND SYSTEMS
`
`(75)
`
`Inventor: Thomas David Petite, Douglasville,
`GA (US)
`
`(73)
`
`Assignee: SIPCO, LLC, Atlanta, CA HIS)
`
`(*)
`
`Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 60 days.
`
`This patent is subject to a terminal dis-
`claimer.
`
`(21) Appl. No.: 11/119,054
`
`(22)
`
`Filed:
`
`Apr. 29, 2005
`
`(65)
`
`(63)
`
`(60)
`
`(51)
`
`Prior Publication Data
`
`US 2005/0190055 A1
`
`Sep. 1, 2005
`
`Related US. Application Data
`
`Continuation of application No. 09/811,076, filed on
`Mar. 16, 2001, now Pat. No. 6,914,533, which is a
`continuation-in-part of application No. 09/790,150,
`filed on Feb. 21, 2001, now Pat. No. 6,522,974, which
`is a continuation-in-part of application No. 09/439,
`059, filed on Nov. 12, 1999, 110w Pat. No. 6,437,692,
`which is a continuation-in-part of application No.
`09/412,895, filed on Oct. 5, 1999, now Pat. No.
`6,218,953, which is a continuation—in—part of appli—
`cation No. 09/271,517, filed on Mar. 18, 1999, now
`abandoned, which is a continuation-in-part of appli-
`cation No. 09/172,554, filcd on Oct. 14, 1998, now
`Pat. No. 6,028,522, which is a continuation—in—part of
`application No. 09/102,178, filed on Jun. 22, 1998,
`now Pat. No. 6,430,268.
`
`Provisional application No. 60/223,932, filcd on Aug.
`9, 2000.
`
`Int. Cl.
`G08B 17/10
`
`(2006.01)
`
`(52) US. Cl.
`
`.................... .. 340/628, 340/629, 340/630,
`340/531; 340/506; 340/5391
`(58) Field of Classification Search .............. .. 340/628,
`340/627, 630, 632, 539.1, 577, 500, 5207524,
`340/531, 540, 286.02, 286.05, 506; 370/310
`See application file for complete search history.
`
`(56)
`
`DE
`
`References Cited
` U.S. PATENT DOCUMENTS
`
`
`3,665,475 A
`
`5/1972 Gram
`
`(Continued)
`
`
`
` FORAIGN PATANl DOCUMENTS
`
`WO 03/007264
`/2003
`
`(Continued)
`OTHER PUBLICATIONS
`
`Brownrigg, Edwin, “Uscr Provided Access to the Internet”, Open
`Access Solutions, http://web.sinunonsedu/chem/niLNIT’92/033-
`bro.htm, Jun. 8, 2005—Jun. 9, 2005.
`
`(Continued)
`
`Primary ExamineriAnh V. la
`(74) Attorney, Agent. or FirmiTroutman Sanders LLP;
`Ryan A. Schneider; James H. Yancey, Jr.
`
`(57)
`
`ABSTRACT
`
`The present invention is directed to a system and method for
`accessing home monitoring devices remotely via a distrib—
`uted wide-area network (WAN). More specifically,
`the
`present
`invention is directed towards a smoke detector
`system, which monitors for the presence of smoke and
`communicatcs thc smokc condition to a rcmotc location. The
`smoke detection system comprises a smoke detection device
`connected to a communication device. The smoke detection
`device outputs a signal or a change in a signal upon detection
`ofsmoke. This signal or change in signal is monitored by the
`communication device. The smoke condition is then com—
`municated to the remote central location. Other embodi-
`ments are also claimed and described.
`
`19 Claims, 14 Drawing Sheets
`
`50MB!
`Z“:
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`Ynnscllvlr
`5221]
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`Local Gut-way
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`
`Petitioner Emerson's Exhibit 1029
`
`Page 1 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 1 of 28
`
`
`
`US 7,295,128 B2
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`Page 2
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`
`AA >
`
`>>>>>>>>>>>>>>>>>>>>>>>>>3»>>>>3»>>>>3»>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
`
`5,038,372
`5.055.851
`5,057,814
`5,061,997
`5,086,391
`5,091,713
`5.111.199
`5,113,183
`5,113,184
`5,115,224
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`5,416,475
`5,416,725
`
`
`
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`
`>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>39>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
`
`3.705,385
`3.723,876
`3742,142
`3848,231
`3,892,948
`3906,460
`3914,692
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`
`NR[\KKNKl\1\kl\kl\r\l\l\kl\r\l\l\kl\r\l\l\l\l\r\I\I\l\l\r\l\l\l\l\l\4§l\l\l\l\l\l\l\l\l\l\1\l\_§l\l\r\l\l\l\k
`
`Petitioner Emerson's Exhibit 1029
`
`Page 2 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 2 of 28
`
`
`
`US 7,295,128 B2
`
`Page 3
`
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`5629,875
`5.630,209
`5.631,554
`5.644,294
`5.655,219
`5657,389
`5.659,300
`
`>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>39>>>>39>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
`
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`5,761,083
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`5,771,274
`5,774,052
`5,781,143
`5,790,644
`5,790,662
`5,790,938
`5,796,727
`5,798,964
`5,801,643
`5,815,505
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`5,822,273
`5,822,544
`5,826,195
`5,828,044
`5,832,057
`5,838,223
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`5,838,812
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`5,841,764
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`5,880,677
`5,884,184
`5,884,271
`5,886,333
`5,889,468
`5,892,690
`5,892,758
`
`>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>3»>>>>3»>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
`
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`Petitioner Emerson's Exhibit 1029
`
`Page 3 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 3 of 28
`
`
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`US 7,295,128 B2
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`12/20 0
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`1/20
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`1/200
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`6/2002
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`7/2002
`7/2002
`7/2002
`7/2002
`8/2002
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`
`Masone et al.
`Cunningham et al.
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`Davis et a1.
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`Petite
`Suer et al.
`
`AA >
`
`>>>>>>>>>>>
`
`wwwmwgwwmwwwwmwmadman:madman:waswmwmwwmwmmwmwmmwmwmmwmwmwwmwmwwm
`
`6,121,885
`6,124,806
`6,127,917
`6,128,551
`6,130,622
`6,133,850
`6,137,423
`6,140,975
`6,141,347
`6,150,936
`6,150,955
`6,157,464
`6,157,824
`6,163,276
`6,172,616
`6,174,205
`6,175,922
`6,177,883
`6,181,255
`6,181,284
`6,181,981
`6,188,354
`6,192,390
`6,198,390
`6,199,068
`6,208,266
`6,215,404
`6,218,953
`6,218,983
`6,219,409
`6,229,439
`6,233,327
`6,234,111
`6,236,332
`6,243,010
`6,246,677
`6,249,516
`6,259,369
`6,286,756
`6,288,634
`6,288,641
`6,295,291
`6,301,514
`6,305,602
`6,308,111
`6,311,167
`6,314,169
`6,317,029
`6,334,117
`6,351,223
`6,356,205
`6,357,034
`6,362,745
`6,363,057
`6,366,217
`6,369,769
`6,370,489
`6,373,399
`6,380,851
`6,384,722
`6,393,341
`6,393,381
`6,393,382
`6,396,839
`6,400,819
`6,401,081
`6,411,889
`6,415,245
`6,422,464
`6,424,270
`6,424,931
`6,430,268
`6,431,439
`
`5,892,924
`5,896,097
`5,897,607
`5,898,369
`5,905,438
`5,907,291
`5,907,491
`5,907,540
`5,907,807
`5,914,672
`5,914,673
`5,917,405
`5,917,629
`5,923,269
`5,926,103
`5,926,529
`5,926,531
`5,933,073
`5,941,363
`5,941,955
`5,948,040
`5,949,779
`5,949,799
`5,953,371
`5,955,718
`5,960,074
`5,963,146
`5,963,452
`5,963,650
`5,969,608
`5,973,756
`5,978,364
`5,978,371
`5,986,574
`5,987,421
`5,991,639
`5,994,892
`5,995,592
`5,995,593
`5,997,170
`5,999,094
`6,005,759
`6,005,963
`6,021,664
`6,023,223
`6,028,522
`6,028,857
`6,031,455
`6,032,197
`6,035,266
`6,036,086
`6,038,491
`6,044,062
`6,054,920
`6,060,994
`6,061,604
`6,064,318
`6,067,017
`6,067,030
`6,069,886
`6,073,169
`6,073,266
`6,073,840
`6,075,451
`6,087,957
`6,088,659
`6,094,622
`6,100,817
`6,101,427
`6,101,445
`6,112,983
`6,119,076
`6,121,593
`
`>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>39>>>>39>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
`
`4/ 1999
`4/ 1999
`4/ l 999
`4/ 1999
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`2/2000
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`7/2000
`7/2000
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`
`
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`
`
`US 7,295,128 B2
`
`Page 5
`
`6437,692
`6.438.575
`6445,291
`6.456,960
`6457,038
`6462,644
`6,462.672
`6477,558
`6.483,290
`6484,939
`6.489,884
`6,491.828
`6.492,910
`6.504,357
`6.507,794
`6.509,722
`6,519.568
`6.538,577
`6.542,076
`6.542,077
`6543,690
`6.560.223
`6.574,603
`6.600,726
`6.608,551
`6.618,578
`6618,709
`6.628,764
`6628,965
`6.653,945
`6.671,586
`6674,403
`6.678,255
`6678,285
`6.731,201
`6735,630
`6.747,557
`6,771,981
`6.891,838
`6.914,533
`6914,893
`6959,550
`20 10002210
`20010003479
`20 1/0021646
`2001/0024163
`2001/0034223
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`20020002444
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`
`
`
`B1
`B1
`B2
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`B1
`B1
`B1
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`B1
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`
`A1
`A1
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`A1
`A1
`A1
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`A1
`A1
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`
`
`8/2 02
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`
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`OTHER PI JEI ,ICATIONS
`
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`
`Petitioner Emerson's Exhibit 1029
`
`Page 5 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 5 of 28
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`
`
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`
`Page 6
`
`Frankel, Michael 8., “Packet Radios Provide Link for Distributed,
`Survivable C3 in Post-Atmck Scenarios”, MSN Jun. 1983.
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`Radio Network”, IEEE 1982, pp. 23.1-1 to 23.1-6.
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`
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`1985, pp. 86-92.
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`
`* cited by examiner
`
`Petitioner Emerson's Exhibit 1029
`
`Page 6 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 6 of 28
`
`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 1 of 14
`
`US 7,295,128 B2
`
`Sensor!
`Actuator
`
`Sensor I
`Actuator
`
`Actuator
`
`Local Controller
`
`Sensor I
`
`Sensor I
`Actuator
`
`110
`
`105
`
`125
`
`115
`
`100
`
`Central Monitoring
`
`Station
`
`FIG. 1
`
`(PRIOR ART)
`
`Petitioner Emerson's Exhibit 1029
`
`Page 7 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 7 of 28
`
`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 2 of 14
`
`US 7,295,128 B2
`
`235
`
`-\
`
`Transmitter
`
`
`
`Transceiver
`
`235
`
`'knsmitter
`
`
`
`
`
`WAN (Internet!
`Intranet)
`
`
`Laptop computer
`
`250
`
`Workstation
`
`200
`
`FIG. 2
`
`Petitioner Emerson's Exhibit 1029
`
`Page 8 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 8 of 28
`
`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 3 of 14
`
`US 7,295,128 B2
`
`340
`
`'s’mrl-EEéé'i'Sfiw'i
`f""""T""""
`E Transmitter !D 3
`Code
`:
`l________________"J................-...Jl
`
`,1,
`
`330
`
`300
`
`
`
`Transmitter
`
`Controller
`
`
`
`325
`
`
`
`
`
`
`Interface
`
` Data
`
`
`
`Controller
`
`320
`
`Transmitter
`
`ID
`
`FIG. 3
`
`Petitioner Emerson's Exhibit 1029
`
`Page 9 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 9 of 28
`
`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 4 of 14
`
`US 7,295,128 B2
`
`435
`,.................... “K..-__________-_,
`Transceiver
`Function
`E
`ID
`Code
`E
`—————————————————————————————————— --J
`
`
`
`
`Transceiver
`
`
`
`Controller
`
`
`Data
`
`Interface
`
`Data
`
`Controller
`
`
`
`
`Transceiver
`
`ID
`
`FIG. 4
`
`Petitioner Emerson's Exhibit 1029
`
`Page 10 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 10 of 28
`
`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 5 of 14
`
`US 7,295,128 B2
`
`
`
`555
`
`Photo
`
`Detector
`
`
`
`525
`
`FIG. 5A
`
`.4535
`<7 [3
`
`0 QB D\
`
`O 5
`
`45
`
`555
`
`Light
`
`Source
`
`515
`
`500
`
`
`
`Detector
`
`Petitioner Emerson's Exhibit 1029
`
`Page 11 of 28
`
`Petitioner Emerson's Exhibit 1029
`Page 11 of 28
`
`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 6 of 14
`
`US 7,295,128 B2
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`
`
`Detection
`
`Circuitry
`
`
`
`Radiation
`Source
`
`
`
`
`615
`
`FIG. 6
`
`Petitioner Emerson's Exhibit 1029
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`Page 12 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 12 of 28
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`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 7 of 14
`
`US 7,295,128 B2
`
`Smoke Detection
`Circuitry
`
`705
`
`
`715
`
`Communication
`
`Device
`
`700
`
`FIG. 7
`
`Petitioner Emerson's Exhibit 1029
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`Page 13 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 13 of 28
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`
`
`U.S. Patent
`
`NOV. 13, 2007
`
`Sheet 8 of 14
`
`US 7,295,128 B2
`
`
`
`805
`
`K...— Ceiling
`
`
`
`810
`
`.
`.
`Communication
`
`
`Smoke Detector
`\
`
`815
`
`300
`
`Devwe
`
`FIG. 8
`
`9 15
`
`Ceiling
`
`Communication
`
`
`Device Printed Circuit
`
`Board
`
`III lIlIIIlIIlIIIIIIIIIlIIlI lIII
`
` 920
`
`910
`
`905
`
`Smoke Detector
`
`Petitioner Emerson's
`
`Exhibit 1029
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`Page 14 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 14 of 28
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`
`
`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 9 of 14
`
`US 7,295,128 B2
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`1015
`
`
`
`‘ J Communication Device
`I
`
`II-
`
`
`Detector
`
`
`
`I
`
`
`
`Ac Power Lines
`
`
`
`\bm
`
`FIG. 10A
`
`1050
`
`Alarm Line
`
`1055
`[
`
`
`
`
`
`I'-
`III—-
`
`'
`:
`Communication
`1
`Device
`g
`“330
`AC Power Lines
`
`
`
`Smoke
`Detector
`
`
`
`
`
`1055
`
`FIG. 1GB
`
`Petitioner Emerson's Exhibit 1029
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`Page 15 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 15 of 28
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`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 10 of 14
`
`US 7,295,128 B2
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`1105
`
`1110
`
`Smoke Detector
`
`Alarm
`
`Testing Module
`
`Communication
`
`Device
`
`1120
`
`1115
`
`1100/
`
`FIG. 11
`
`Petitioner Emerson's Exhibit 1029
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`Page 16 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 16 of 28
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`
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`U.S. Patent
`
`Nov. 13, 2007
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`Sheet 11 of 14
`
`US 7,295,128 B2
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`Transceiver!
`
`Repeater
`
`
`
`
`Transceiver!A Repeater ‘2
`/ e
`\
`4/
`
`
`1215
`
`1230
`
`WAN (lntemetl
`Intranet)
`
`1265
`
`14””’
`
`Local Gateway B
`
`1255
`
`1235
`
`
`
`FIG. 12
`
`Petitioner Emerson's Exhibit 1029
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`Page 17 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 17 of 28
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`
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`U.S. Patent
`
`Nov. 13, 2007
`
`Sheet 12 of 14
`
`US 7,295,128 B2
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`Transceiver
`ID (I)
`
`Function
`Code (I)
`
`Transceiver
`ID ()0
`
`Function
`Code (X)
`
`"'
`
`“V
`
`1335
`
`1340
`
`1 325
`
`Identify
`Remote
`Transceiver
`
`Identify
`Intermediate
`Transceiver
`
`
`
`Transceiver
`
`
`
`Look-Up
`Table(s)
`
`1330
`
`1300
`
`T
`
`I
`CPI P
`
`
`1320
`
`FIG. 13
`
`Intranet)
`
`WAN (Internet!
`
`
`
`Petitioner Emerson's Exhibit 1029
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`Page 18 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 18 of 28
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`
`
`U.S. Patent
`
`Nov. 13
`
`9
`
`2007
`
`Sheet 13 of 14
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`US 7,295,128 B2
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`E.20
`
`E:5
`60$8
`
`Ema
`
`6..E433‘OH 0—"—
`
`
`
`.25£55.35.xmgfia.ozfia.52Eat
`EE8av
`
`
`
`MEDPODEHmm0<wwm2
`
`E.
`
`Petitioner Emerson's Exhibit 1029
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`Page 19 of 28
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`Petitioner Emerson's Exhibit 1029
`Page 19 of 28
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`
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`U.S. Patent
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`Nov. 13, 2007
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`Sheet 14 of 14
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`US 7,295,128 B2
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`Sample Messages
`
`(1500
`
`Centre! Server to Personal Transceiver - Broadcast Message - FF (Emergency)
`
`Byte Count = 12
`
`To Addr
`
`From Addr. Pkt. No.
`
`(FF)
`
`(12345678)
`
`(00)
`
`
`
`
`
`Pkt. Max.
`
`(00)
`
`
`
`Pkt.Lngth. Cmd.
`(DC)
`(FF)
`
`CkH CkL
`(02)
`(9E)
`
`
`
`First Transceiver 10 Repeater (Transceiver)
`
`[1510
`Broadcast Message - FF (Emergency)
`
`
`To Addr.
`
`From Addr. Pkt. No. Pk1.Max.
`Pkt. Lngth. Cmd.
`CkH
`CkL
`
`(11}
`(03)
`(A0)
`(12345678)
`(00)
`(DO)
`(F0)
`
`
`
`Byte Count = 17
`
`
`
`Note: Additional Transceiver Re-Broadcasts do not change the message.
`The messages are simply received and re-broadcast.
`
`Message to Device "A0" From Device "E1" Command - "DB" (Respond to PING)
`Response will reverse "To" and "From" Addresses
`
`ToAddr.
`(A012345678)
`
`From Addr.
`(E112345678)
`
`P# PMax PLngth Cmd. Data CkH CkL
`(00}
`(00)
`(11)
`(08)
`(A5)
`(04)
`{67)
`
`Byte Count: 17
`
`FIG. 15
`
`Petitioner Emerson's Exhibit 1029
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`Page 20 of 28
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`Petitioner Emerson's Exhibit 1029
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`US 7,295,128 B2
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`1
`SMOKE DETECTION METHODS, DEVICES,
`AND SYSTEMS
`
`CROSS-REFERENCE TO RELATED
`APPLICATIONS
`
`This application is a continuation of U.S. patent applica-
`tion Ser. No. 09/811,076, now U.S. Pat. No. 6,914,533, filed
`Mar. 16, 2001, and entitled “System and Method for Moni-
`toring and Controlling Residential Devices”, which claims
`the benefit of U.S. Provisional Application Ser. No. 60/223,
`932, filed Aug. 9, 2000, and entitled “Design Specifications
`for a Smoke Detector Communication device”; and is a
`continuation-in-part of: U.S. patent application Ser. No.
`09/790,150, now U.S. Pat. No. 6,522,974, filed Feb. 21,
`2001, and entitled “System and Method for Monitoring and
`Controlling Residential Devices”; U.S. patent application
`Ser. No. O9/271,517, now abandoned, filed Mar. 18, 1999,
`and entitled, “System For Monitoring Conditions in a Resi—
`dential Living Community”; U.S. patent application Ser. No.
`09/439,059, now U.S. Pat. No. 6,437,692, filed Nov. 12,
`1999, and entitled, “System and Method for Monitoring and
`Controlling Remote Devices”; U.S. patent application Ser.
`No. 09/102,178, now U.S. Pat. No. 6,430,268, filed Jun. 22,
`1998, entitled, “Multi-Function General Purpose Trans-
`ceiver”, U.S. patent application Ser. No. 09/172,554, now
`U.S. Pat. No. 6,028,522,
`filed Oct, 14, 1998, entitled,
`“System for Monitoring the Light Level Around an ATM”;
`and U.S. patent application Ser. No. 09/412,895, now U.S.
`Pat. No. 6,218,953 filed Oct. 5, 1999, entitled, “System and
`Method for Monitoring the Light Level Arotmd an ATM”,
`Each of the above-identified US. patent applications is
`hereby incorporated herein by reference in its entirety as if
`fully set forth in this patent application.
`
`TECHNICAL FIELD
`
`The present invention generally relates to remotely moni-
`tored residential systems, and more particularly, to smoke
`detection methods, devices, and systems to monitor smoke
`conditions and communicate smoke conditions to a remote
`controller or monitoring device.
`
`BACKGROUND
`
`There are a variety of systems for monitoring and con-
`trolling manufacturing processes, inventory systems, emer-
`gency control systems, and the like. Most automated sys-
`tems use remote sensors and controllers to monitor and
`respond to various system parameters to reach desired
`results. A number of control systems utilize computers or
`dedicated microprocessors in association with appropriate
`software to process system inputs, model system responses,
`and control actuators to implement corrections within a
`system.
`The prior art FIG. 1 sets forth a traditional monitoring
`system 100. The exemplary monitoring sensor 105 is hard-
`wired to a local controller 110, which communicates to a
`central monitoring station 115 via the public switched tele—
`phone network (PSTN) 125. An example of this kind of
`system would be a traditional home security system. Each
`monitoring device 105 such as a smoke detector, motion
`detector, or glass breakage detector hardwired to the central
`monitoring station 115 via the PSTN 125 and the local
`controller 110.
`Residential monitoring systems have multiplied as indi-
`viduals seek protection and safety in their residences. It has
`
`10
`
`15
`
`,
`
`30
`
`35
`
`4o
`
`45
`
`50
`
`6O
`
`65
`
`2
`been proven that monitoring for the presence of heat or
`smoke indicative of fire, and sounding an audible alarm
`when detecting fire saves lives. Additionally, fire (heat or
`smoke) detectors are typically incorporated into home secu-
`rity systems to provide fire detection services. These home
`security systems, however, are often hardwired into the
`residence, which can be costly and quite difficult to install.
`Also, each residential system individually conmlunicates
`with the central location via the PSTN. This connection is
`quite susceptible to interruption, either by accident or on
`purpose, and requires each residence to have a connection to
`the PSTN. Accordingly,
`it would be advantageous to
`develop a fire monitoring system that easily, reliably, and
`quickly communicates with a remote central location when
`necessary.
`
`BRIEF SUMMARY OF THE INVENTION
`
`The present invention is generally directed to a system
`and a cost-effective method for accessing home monitoring
`devices
`remotely via a distributed wide-area network
`(WAN). More specifically, the present invention is directed
`towards a smoke detector system for monitoring the pres-
`ence of smoke conditions and communicating the smoke
`condition to a remote central location,
`The smoke detection system comprises a smoke detection
`device in communication with a communication device. The
`smoke detection device outputs a signal or a change in a
`signal once smoke is detected. This signal or change in
`signal
`is monitored by the communication device. The
`smoke condition is then communicated to the remote central
`location via a message system. In accordance with one
`preferred embodiment of the present invention, a fire detec-
`tion system includes one or more monitoring devices acces-
`sible ultimately through a computing device in communi-
`cation with the WAN. The monitoring devices communicate
`with wireless transceivers that
`transm