DE60228515D1 - Freisprechtelefongerät mit verbesserter Lecktoleranz - Google Patents
Freisprechtelefongerät mit verbesserter LecktoleranzInfo
- Publication number
- DE60228515D1 DE60228515D1 DE60228515T DE60228515T DE60228515D1 DE 60228515 D1 DE60228515 D1 DE 60228515D1 DE 60228515 T DE60228515 T DE 60228515T DE 60228515 T DE60228515 T DE 60228515T DE 60228515 D1 DE60228515 D1 DE 60228515D1
- Authority
- DE
- Germany
- Prior art keywords
- hands
- telephone device
- free telephone
- improved leak
- leak tolerance
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
- H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Telephone Function (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Secondary Cells (AREA)
- External Artificial Organs (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0103764A FR2822617B1 (fr) | 2001-03-20 | 2001-03-20 | Telephone mains libres tolerant aux fuites |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60228515D1 true DE60228515D1 (de) | 2008-10-09 |
Family
ID=8861340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60228515T Expired - Lifetime DE60228515D1 (de) | 2001-03-20 | 2002-03-18 | Freisprechtelefongerät mit verbesserter Lecktoleranz |
Country Status (8)
Country | Link |
---|---|
US (1) | US7139394B2 (de) |
EP (1) | EP1244277B1 (de) |
JP (1) | JP2002330208A (de) |
CN (1) | CN1232092C (de) |
AT (1) | ATE406755T1 (de) |
DE (1) | DE60228515D1 (de) |
ES (1) | ES2312530T3 (de) |
FR (1) | FR2822617B1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0213732D0 (en) * | 2002-06-14 | 2002-07-24 | Mitel Knowledge Corp | Audio earpiece for wideband telephone handsets |
US7529520B2 (en) | 2004-02-12 | 2009-05-05 | Sony Ericsson Mobile Communications Ab | Electro-acoustic transducer for a portable communication device |
ATE385127T1 (de) * | 2004-02-12 | 2008-02-15 | Sony Ericsson Mobile Comm Ab | Elektroakustischer wandler für eine tragbare kommunikationsvorrichtung |
DE602005013744D1 (de) * | 2005-02-03 | 2009-05-20 | Tcl & Alcatel Mobile Phones | Mobiles Endgerät mit mindestens zwei Lautsprechern zur Erzeugung eines Stereoeffektes |
FI20050690A0 (fi) * | 2005-06-29 | 2005-06-29 | Nokia Corp | Kaiutinlaitteisto langattomassa viestintälaitteessa |
FI20050691A0 (fi) * | 2005-06-29 | 2005-06-29 | Nokia Corp | Kuuloke- ja kaiutintoiminnot yhdistävä kaiutinlaitteisto |
US20110268309A1 (en) | 2010-04-30 | 2011-11-03 | Research In Motion Limited | Handset leak-tolerant receiver |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1069233A (en) * | 1977-01-18 | 1980-01-01 | Northern Telecom Limited | Telephone hand set transmitter with improved output response |
JPS59154977U (ja) * | 1983-03-31 | 1984-10-17 | オ−スミ電機株式会社 | 重低音専用スピ−カ−システム |
JPS61139189A (ja) * | 1984-12-11 | 1986-06-26 | Matsushita Electric Ind Co Ltd | ハンドセツト |
JPS62203588U (de) * | 1986-06-16 | 1987-12-25 | ||
EP0361445A3 (de) * | 1988-09-28 | 1991-05-22 | Yamaha Corporation | Akustisches Gerät |
US5369701A (en) * | 1992-10-28 | 1994-11-29 | At&T Corp. | Compact loudspeaker assembly |
US5365050A (en) * | 1993-03-16 | 1994-11-15 | Worthington Data Solutions | Portable data collection terminal with voice prompt and recording |
JPH07273850A (ja) * | 1994-03-30 | 1995-10-20 | Aiphone Co Ltd | 電話機・インターホン用スピーカ構造 |
US5790679A (en) * | 1996-06-06 | 1998-08-04 | Northern Telecom Limited | Communications terminal having a single transducer for handset and handsfree receive functionality |
FI115108B (fi) * | 1997-10-06 | 2005-02-28 | Nokia Corp | Menetelmä ja järjestely kuulokkeen vuotosiedon parantamiseksi radiolaitteessa |
US6321070B1 (en) * | 1998-05-14 | 2001-11-20 | Motorola, Inc. | Portable electronic device with a speaker assembly |
ATE253287T1 (de) * | 1999-01-26 | 2003-11-15 | Koninkl Philips Electronics Nv | Vorrichtung mit einem gehäuse das einen tonwandler enthält und mit einer durchführung |
-
2001
- 2001-03-20 FR FR0103764A patent/FR2822617B1/fr not_active Expired - Lifetime
-
2002
- 2002-03-18 ES ES02290670T patent/ES2312530T3/es not_active Expired - Lifetime
- 2002-03-18 AT AT02290670T patent/ATE406755T1/de not_active IP Right Cessation
- 2002-03-18 DE DE60228515T patent/DE60228515D1/de not_active Expired - Lifetime
- 2002-03-18 EP EP02290670A patent/EP1244277B1/de not_active Expired - Lifetime
- 2002-03-19 US US10/100,008 patent/US7139394B2/en not_active Expired - Fee Related
- 2002-03-20 CN CNB021218013A patent/CN1232092C/zh not_active Expired - Fee Related
- 2002-03-20 JP JP2002078471A patent/JP2002330208A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CN1232092C (zh) | 2005-12-14 |
US7139394B2 (en) | 2006-11-21 |
EP1244277B1 (de) | 2008-08-27 |
EP1244277A1 (de) | 2002-09-25 |
FR2822617B1 (fr) | 2003-08-01 |
ATE406755T1 (de) | 2008-09-15 |
ES2312530T3 (es) | 2009-03-01 |
FR2822617A1 (fr) | 2002-09-27 |
CN1383310A (zh) | 2002-12-04 |
US20020136398A1 (en) | 2002-09-26 |
JP2002330208A (ja) | 2002-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |