EP2055018A4 - Code-based echo cancellation - Google Patents

Code-based echo cancellation

Info

Publication number
EP2055018A4
EP2055018A4 EP07798540A EP07798540A EP2055018A4 EP 2055018 A4 EP2055018 A4 EP 2055018A4 EP 07798540 A EP07798540 A EP 07798540A EP 07798540 A EP07798540 A EP 07798540A EP 2055018 A4 EP2055018 A4 EP 2055018A4
Authority
EP
European Patent Office
Prior art keywords
code
echo cancellation
based echo
cancellation
echo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07798540A
Other languages
German (de)
French (fr)
Other versions
EP2055018A2 (en
Inventor
Derek Wang
Vikas Sharma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Divitas Networks Inc
Original Assignee
Divitas Networks Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/537,985 external-priority patent/US7546125B2/en
Priority claimed from US11/755,704 external-priority patent/US7480500B1/en
Priority claimed from US11/755,702 external-priority patent/US20080140767A1/en
Priority claimed from US11/755,727 external-priority patent/US20090016333A1/en
Priority claimed from US11/755,710 external-priority patent/US20080317241A1/en
Application filed by Divitas Networks Inc filed Critical Divitas Networks Inc
Publication of EP2055018A2 publication Critical patent/EP2055018A2/en
Publication of EP2055018A4 publication Critical patent/EP2055018A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/029—Firewall traversal, e.g. tunnelling or, creating pinholes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H04W12/062—Pre-authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H04W12/069—Authentication using certificates or pre-shared keys

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
EP07798540A 2006-06-14 2007-06-14 Code-based echo cancellation Withdrawn EP2055018A4 (en)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
US80480606P 2006-06-14 2006-06-14
US11/537,985 US7546125B2 (en) 2005-10-03 2006-10-02 Enhancing user experience during handoffs in wireless communication
US11/538,042 US20070094374A1 (en) 2005-10-03 2006-10-02 Enterprise-managed wireless communication
US11/538,037 US20080119165A1 (en) 2005-10-03 2006-10-02 Call routing via recipient authentication
US11/537,980 US20070091848A1 (en) 2005-10-03 2006-10-02 Reducing data loss during handoffs in wireless communication
US11/537,994 US20070091907A1 (en) 2005-10-03 2006-10-02 Secured media communication across enterprise gateway
US11/537,990 US7688820B2 (en) 2005-10-03 2006-10-02 Classification for media stream packets in a media gateway
US11/538,034 US20070264989A1 (en) 2005-10-03 2006-10-02 Rendezvous calling systems and methods therefor
US11/755,704 US7480500B1 (en) 2006-06-14 2007-05-30 Divitas protocol proxy and methods therefor
US11/755,702 US20080140767A1 (en) 2006-06-14 2007-05-30 Divitas description protocol and methods therefor
US11/755,727 US20090016333A1 (en) 2006-06-14 2007-05-30 Content-based adaptive jitter handling
US11/755,710 US20080317241A1 (en) 2006-06-14 2007-05-30 Code-based echo cancellation
PCT/US2007/071180 WO2007147033A2 (en) 2006-06-14 2007-06-14 Code-based echo cancellation

Publications (2)

Publication Number Publication Date
EP2055018A2 EP2055018A2 (en) 2009-05-06
EP2055018A4 true EP2055018A4 (en) 2009-09-16

Family

ID=42312710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07798540A Withdrawn EP2055018A4 (en) 2006-06-14 2007-06-14 Code-based echo cancellation

Country Status (2)

Country Link
EP (1) EP2055018A4 (en)
WO (1) WO2007147033A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8295475B2 (en) 2006-01-13 2012-10-23 Microsoft Corporation Selective glitch detection, clock drift compensation, and anti-clipping in audio echo cancellation
US7773743B2 (en) 2006-04-28 2010-08-10 Microsoft Corporation Integration of a microphone array with acoustic echo cancellation and residual echo suppression
US7831035B2 (en) 2006-04-28 2010-11-09 Microsoft Corporation Integration of a microphone array with acoustic echo cancellation and center clipping
US8380253B2 (en) 2008-02-15 2013-02-19 Microsoft Corporation Voice switching for voice communication on computers
US8369251B2 (en) 2008-06-20 2013-02-05 Microsoft Corporation Timestamp quality assessment for assuring acoustic echo canceller operability

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6010456A (en) * 1998-12-30 2000-01-04 General Electric Company Method and apparatus for acoustic subtraction imaging using linear and nonlinear ultrasonic images
US6603808B1 (en) * 1999-07-22 2003-08-05 Compaq Information Technologies Group, L.P. Dual mode phone line networking modem utilizing conventional telephone wiring
DE19935808A1 (en) * 1999-07-29 2001-02-08 Ericsson Telefon Ab L M Echo suppression device for suppressing echoes in a transmitter / receiver unit
US6768796B2 (en) * 2001-02-05 2004-07-27 3Com Corporation System and method for echo cancellation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2007147033A2 *

Also Published As

Publication number Publication date
WO2007147033A2 (en) 2007-12-21
EP2055018A2 (en) 2009-05-06
WO2007147033A3 (en) 2008-07-03

Similar Documents

Publication Publication Date Title
GB2445515B (en) Echo canceller
EP1949552A4 (en) Configuration of echo cancellation
EP2092892A4 (en) Ultrasonograph
EP2014237A4 (en) Ultrasonograph
EP2091257A4 (en) Coder
EP1997436A4 (en) Ultrasonograph
EP1958341A4 (en) Echo detection
PT1979132T (en) Scouring body
GB2439511B (en) Echo canceller
EP1853087A4 (en) Echo canceler
EP2062892A4 (en) Hypertension-ameliorating agent
EP2014132A4 (en) Echo and noise cancellation
EP2068900A4 (en) Film-delivering rinse
GB0625001D0 (en) Short isolation
EP2055018A4 (en) Code-based echo cancellation
EP2060233A4 (en) Ultrasonograph
EP2030629A4 (en) Lipid-metabolism-improving agent
EP2182648A4 (en) Echo canceller
GB0610318D0 (en) Transducers
EP2060263A4 (en) Lipid-metabolism-ameliorating agent
EP2050469A4 (en) Diagnostic agent
EP2047804A4 (en) Ultrasonograph
GB0601325D0 (en) Hatch
EP1860781A4 (en) Noise canceller
GB2422102B (en) Underwater furniture

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090114

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

A4 Supplementary search report drawn up and despatched

Effective date: 20090817

RIC1 Information provided on ipc code assigned before grant

Ipc: H04M 9/08 20060101ALI20090811BHEP

Ipc: H04B 7/015 20060101AFI20090128BHEP

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20091008

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20101231