IIIH
US006850161B1
(12) United States Patent ao) Patent No.: us 6,850,161 Bi
Elliott et al. (45) Date of Patent: Feb. 1,2005
(54) SYSTEMS AND METHODS FOR
IDENTIFYING AND MAPPING CONDUIT
LOCATION
(75) Inventors: Brig Barnum Elliott, Arlington, MA (US); Jerry Burchflel, Waltham, MA (US)
(73) Assignee: Verizon Corporate Services Group Inc., New York, NY (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 70 days.
(21) Appl. No.: 09/963,702
(22) Filed: Sep. 26, 2001
Related U.S. Application Data
(60) Provisional application No. 60/242,599, filed on Oct. 23, 2000.
(51) Int. CI.7 G08B 13/14
(52) U.S. CI 340/572.1; 340/572.4;
340/572.7; 340/539.1; 340/825.49; 340/853.5;
340/853.9
(58) Field of Search 340/572.1, 572.4,
340/572.7, 539.1, 853.5, 853.9, 825.45, 825.54, 825.49
(56) References Cited
U.S. PATENT DOCUMENTS
5,173,139 A 12/1992 Rippingale et al.
5,206,065 A 4/1993 Rippingale et al.
5,296,850 A * 3/1994 King 340/825.49
5,305,411 A 4/1994 Arroyo
5,361,029 A * 11/1994 Rider et al 324/326
5,430,379 A 7/1995 Parkinson et al.
5,463,838 A 11/1995 Collier
5,532,598 A * 7/1996 Clark, Ir. et al 340/551
5,557,258 A * 9/1996 Eslambolchi 340/540
5,563,583 A 10/1996 Brady et al.
5,577,147 A 11/1996 Arroyo et al.
5,635,907 A * 6/1997 Bernard et al 340/573
5,704,189 A 1/1998 Collier
5,720,354 A * 2/1998 Stump et al 340/853.5
5,724,425 A * 3/1998 Chang et al 380/25
6,092,558 A 7/2000 Maccario
6,176,425 Bl * 1/2001 Harrison et al 235/385
6,229,445 Bl 5/2001 Wack
6,374,746 Bl * 4/2002 Fiske 104/28
6,377,203 Bl * 4/2002 Doany 340/10.1
6,405,135 Bl * 6/2002 Adriany et al 702/5
* cited by examiner
Primary Examiner—Daniel J. Wu
Assistant Examiner—Hung Nguyen
(74) Attorney, Agent, or Firm—Leonard Suchtya, Esq.; Joel Wall, Esq.; Finnegan Henderson, et al.
