EP0644527A3 - Terminal for mobile radio. - Google Patents

Terminal for mobile radio. Download PDF

Info

Publication number
EP0644527A3
EP0644527A3 EP94202647A EP94202647A EP0644527A3 EP 0644527 A3 EP0644527 A3 EP 0644527A3 EP 94202647 A EP94202647 A EP 94202647A EP 94202647 A EP94202647 A EP 94202647A EP 0644527 A3 EP0644527 A3 EP 0644527A3
Authority
EP
European Patent Office
Prior art keywords
terminal
mobile radio
radio
mobile
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.)
Granted
Application number
EP94202647A
Other languages
German (de)
French (fr)
Other versions
EP0644527B1 (en
EP0644527A2 (en
Inventor
Rainer C O Philips Pate Martin
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Electronics NV
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 DE4421853A external-priority patent/DE4421853A1/en
Application filed by Philips Patentverwaltung GmbH, Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Priority to EP19940202647 priority Critical patent/EP0644527B1/en
Publication of EP0644527A2 publication Critical patent/EP0644527A2/en
Publication of EP0644527A3 publication Critical patent/EP0644527A3/en
Application granted granted Critical
Publication of EP0644527B1 publication Critical patent/EP0644527B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208Noise filtering
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208Noise filtering
    • G10L21/0216Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02166Microphone arrays; Beamforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
EP19940202647 1993-09-21 1994-09-14 Terminal for mobile radio Expired - Lifetime EP0644527B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19940202647 EP0644527B1 (en) 1993-09-21 1994-09-14 Terminal for mobile radio

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP93115202 1993-09-21
EP93115202 1993-09-21
DE4421853A DE4421853A1 (en) 1994-06-22 1994-06-22 Mobile terminal
DE4421853 1994-06-22
EP19940202647 EP0644527B1 (en) 1993-09-21 1994-09-14 Terminal for mobile radio

Publications (3)

Publication Number Publication Date
EP0644527A2 EP0644527A2 (en) 1995-03-22
EP0644527A3 true EP0644527A3 (en) 1995-08-30
EP0644527B1 EP0644527B1 (en) 2000-05-17

Family

ID=27206507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940202647 Expired - Lifetime EP0644527B1 (en) 1993-09-21 1994-09-14 Terminal for mobile radio

Country Status (1)

Country Link
EP (1) EP0644527B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628529A (en) * 1985-07-01 1986-12-09 Motorola, Inc. Noise suppression system
DE9212439U1 (en) * 1992-09-16 1992-11-26 GS Systems, Inc., Highland Park, Ill. Signal processing system for reducing noise in a speech signal
EP0556992A1 (en) * 1992-02-14 1993-08-25 Nokia Mobile Phones Ltd. Noise attenuation system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628529A (en) * 1985-07-01 1986-12-09 Motorola, Inc. Noise suppression system
EP0556992A1 (en) * 1992-02-14 1993-08-25 Nokia Mobile Phones Ltd. Noise attenuation system
DE9212439U1 (en) * 1992-09-16 1992-11-26 GS Systems, Inc., Highland Park, Ill. Signal processing system for reducing noise in a speech signal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Method of Endpoint Detection.", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 34, no. 9, NEW YORK, US, pages 267 - 269 *

Also Published As

Publication number Publication date
EP0644527B1 (en) 2000-05-17
EP0644527A2 (en) 1995-03-22

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