(19)
(11) EP 1 121 786 A1

(12)

(43) Date of publication:
08.08.2001 Bulletin 2001/32

(21) Application number: 99941106.9

(22) Date of filing: 13.08.1999
(51) International Patent Classification (IPC)7H04L 12/54, H04J 3/12, G05B 23/02
(86) International application number:
PCT/US9918/401
(87) International publication number:
WO 0113/586 (22.02.2001 Gazette 2001/08)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 12.08.1999 US 374203

(71) Applicant: Telogy Networks, Inc.
Germantown, MD 20874 (US)

(72) Inventors:
  • MORGAN, Edward
    Gaithersburg, MD 20878 (US)
  • MLADENOVIC, Zoran
    Bethesda, MD 20817 (US)
  • PATEL, Piyush
    Gaithersburg, MD 20879 (US)
  • SU, Qin
    Gaithersburg, MD 20878 (US)

(74) Representative: Potter, Julian Mark et al
D. Young & Co.,21 New Fetter Lane
London EC4A 1DA
London EC4A 1DA (GB)

   


(54) FAST DTMF IDENTIFICATION