SE9200053L - Radiotelefoner och markbundna telefoner foer handfrisamtal - Google Patents

Radiotelefoner och markbundna telefoner foer handfrisamtal

Info

Publication number
SE9200053L
SE9200053L SE9200053A SE9200053A SE9200053L SE 9200053 L SE9200053 L SE 9200053L SE 9200053 A SE9200053 A SE 9200053A SE 9200053 A SE9200053 A SE 9200053A SE 9200053 L SE9200053 L SE 9200053L
Authority
SE
Sweden
Prior art keywords
signal
output
voltage
reception signal
phones
Prior art date
Application number
SE9200053A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Other versions
SE9200053D0 (sv
Inventor
K-J Kim
Original Assignee
Samsung Electronics Co Ltd
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
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of SE9200053D0 publication Critical patent/SE9200053D0/xx
Publication of SE9200053L publication Critical patent/SE9200053L/

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/06—Hooks; Cradles

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
SE9200053A 1991-05-27 1992-01-10 Radiotelefoner och markbundna telefoner foer handfrisamtal SE9200053L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910008595A KR940002146B1 (ko) 1991-05-27 1991-05-27 핸드프리 작동의 유무선 전화기

Publications (2)

Publication Number Publication Date
SE9200053D0 SE9200053D0 (sv) 1992-01-10
SE9200053L true SE9200053L (sv) 1992-11-28

Family

ID=19314969

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9200053A SE9200053L (sv) 1991-05-27 1992-01-10 Radiotelefoner och markbundna telefoner foer handfrisamtal

Country Status (6)

Country Link
US (1) US5396550A (da)
KR (1) KR940002146B1 (da)
DK (1) DK207791A (da)
FI (1) FI920393A (da)
NO (1) NO310540B1 (da)
SE (1) SE9200053L (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100327731B1 (ko) * 1995-07-04 2002-07-31 삼성전자 주식회사 스피커폰통화종료시통화로자동절단회로및자동대기방법
US5892823A (en) 1996-03-27 1999-04-06 Hello Direct, Inc. Smart interface technology
KR100247004B1 (ko) * 1997-05-13 2000-03-15 윤종용 휴대용 무선단말기의 간섭 제거 방법
JP3070523B2 (ja) * 1997-05-30 2000-07-31 日本電気株式会社 無線通信機
US6741873B1 (en) * 2000-07-05 2004-05-25 Motorola, Inc. Background noise adaptable speaker phone for use in a mobile communication device
JP4567804B1 (ja) * 2009-11-30 2010-10-20 パナソニック株式会社 ハウリング抑制装置、マイク装置、アンプ装置、拡声システムおよびハウリング抑制方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889059A (en) * 1973-03-26 1975-06-10 Northern Electric Co Loudspeaking communication terminal apparatus and method of operation
US4700382A (en) * 1986-03-03 1987-10-13 American Telephone And Telegraph Company, At&T Information Systems, Inc. Voice-switched telephone circuit with center idle state

Also Published As

Publication number Publication date
US5396550A (en) 1995-03-07
DK207791D0 (da) 1991-12-30
KR940002146B1 (ko) 1994-03-18
KR920022736A (ko) 1992-12-19
FI920393A0 (fi) 1992-01-29
DK207791A (da) 1992-11-28
NO920310L (no) 1992-11-30
SE9200053D0 (sv) 1992-01-10
FI920393A (fi) 1992-11-28
NO920310D0 (no) 1992-01-23
NO310540B1 (no) 2001-07-16

Similar Documents

Publication Publication Date Title
US3751602A (en) Loudspeaking telephone
EP1346552B1 (en) A sound-based proximity detector for use in a mobile telephone apparatus
US5058153A (en) Noise mitigation and mode switching in communications terminals such as telephones
US20030123644A1 (en) Method and apparatus for removing audio artifacts
CA1215187A (en) Handsfree circuit for telephone instrument
SE9200053D0 (sv) Radiotelefoner och markbundna telefoner foer handfrisamtal
US20020061103A1 (en) Portable communication device
JPH05122325A (ja) 無線拡声電話装置
US3833766A (en) Voiced controlled gain switched loud-speaking telephone system
EP0965219A2 (en) Method and telephone terminal for providing high terminal coupling loss in a handsfree terminal
FR2452842A1 (fr) Terminal de telecommunications
Clemency et al. Functional Design of a Voice‐Switched Speakerphone
US2269565A (en) Communication system
US6807262B1 (en) Central office control of receive and transmit handset volume
JPS59117849A (ja) 電話機における防騒音回路
JP2002368866A (ja) 音声会議システムの送話レベル調整方法
KR100207819B1 (ko) 난청자용 전화기
JPH06252987A (ja) 音声通信装置
JPS63272254A (ja) 電話装置
ATE214528T1 (de) Anrufverwaltung in einem telekommunikationssystem
JPH0440142A (ja) 自動音量調節付き電話機
KR0121115Y1 (ko) 전화기의 송수화회로
JPH01305753A (ja) 電話機
JPH11261711A (ja) ハンズフリー通話装置，ハンズフリーインターホン装置およびハンズフリー電話装置
JPH11187112A (ja) 通信装置及び通信方法

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9200053-8