DE69433861D1 - Fernsprechnebenstellen-system mit geschütztem zugang und verfahren - Google Patents
Fernsprechnebenstellen-system mit geschütztem zugang und verfahrenInfo
- Publication number
- DE69433861D1 DE69433861D1 DE69433861T DE69433861T DE69433861D1 DE 69433861 D1 DE69433861 D1 DE 69433861D1 DE 69433861 T DE69433861 T DE 69433861T DE 69433861 T DE69433861 T DE 69433861T DE 69433861 D1 DE69433861 D1 DE 69433861D1
- Authority
- DE
- Germany
- Prior art keywords
- extension
- matching
- central office
- line
- line carrier
- 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
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/71—Substation extension arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
- H04M9/022—Multiplex systems
- H04M9/027—Frequency division multiplex systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
- H04B2203/5408—Methods of transmitting or receiving signals via power distribution lines using protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5437—Wired telephone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5441—Wireless systems or telephone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/60—Aspects of automatic or semi-automatic exchanges related to security aspects in telephonic communication systems
- H04M2203/609—Secret communication
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US34086 | 1979-04-27 | ||
US08/034,086 US5530737A (en) | 1993-03-22 | 1993-03-22 | Secure access telephone extension system and method |
PCT/US1994/003110 WO1994022257A1 (en) | 1993-03-22 | 1994-03-21 | Secure access telephone extension system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69433861D1 true DE69433861D1 (de) | 2004-07-29 |
DE69433861T2 DE69433861T2 (de) | 2005-07-28 |
Family
ID=21874219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69433861T Expired - Lifetime DE69433861T2 (de) | 1993-03-22 | 1994-03-21 | Fernsprechnebenstellen-system mit geschütztem zugang und verfahren |
Country Status (13)
Country | Link |
---|---|
US (2) | US5530737A (de) |
EP (1) | EP0691059B1 (de) |
JP (1) | JPH08511381A (de) |
KR (1) | KR100196492B1 (de) |
CN (1) | CN1119009C (de) |
AT (1) | ATE270017T1 (de) |
AU (1) | AU6766194A (de) |
BR (1) | BR9406019A (de) |
CA (1) | CA2155220C (de) |
DE (1) | DE69433861T2 (de) |
ES (1) | ES2227526T3 (de) |
TW (1) | TW321811B (de) |
WO (1) | WO1994022257A1 (de) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5911119A (en) * | 1993-03-22 | 1999-06-08 | Phonex Corporation | Secure cordless telephone extension system and method |
US5530737A (en) | 1993-03-22 | 1996-06-25 | Phonex Corporation | Secure access telephone extension system and method |
US5708701A (en) * | 1995-07-17 | 1998-01-13 | Elcom Technologies Corporation | Power line telephone communications system having on hook digital voiceband messaging |
WO1997004582A1 (en) * | 1995-07-18 | 1997-02-06 | Adaptive Networks, Inc. | Reconfigurable on-demand telephone and data line system |
KR100443208B1 (ko) * | 1995-07-18 | 2004-11-03 | 어댑티브 네트웍 아이엔시 | 재구성가능한신청식전화및데이터라인시스템 |
US5975248A (en) * | 1995-08-11 | 1999-11-02 | Drucegrove Limited | Communications system |
CN100394805C (zh) * | 1996-02-13 | 2008-06-11 | 株式会社东芝 | 数字按钮电话系统 |
US5805053A (en) * | 1996-10-21 | 1998-09-08 | Elcom Technologies, Inc. | Appliance adapted for power line communications |
US5970127A (en) | 1997-10-16 | 1999-10-19 | Phonex Corporation | Caller identification system for wireless phone jacks and wireless modem jacks |
US6055435A (en) | 1997-10-16 | 2000-04-25 | Phonex Corporation | Wireless telephone connection surge suppressor |
US5997170A (en) * | 1997-11-03 | 1999-12-07 | Ident, Inc. | System and method for reporting vending status |
US6480510B1 (en) | 1998-07-28 | 2002-11-12 | Serconet Ltd. | Local area network of serial intelligent cells |
US6778817B1 (en) | 1998-12-01 | 2004-08-17 | Phonex Corporation | Method and system for combining wireless phone jack and RF wireless communications |
CA2362960A1 (en) * | 1999-02-22 | 2000-08-24 | Phonex Corporation | Digital telephony carrier current system |
US6345187B1 (en) * | 1999-05-24 | 2002-02-05 | Agere Systems Guardian Corp. | Receipt of type II caller identification in multi-cordless environment |
DE19963815A1 (de) * | 1999-12-30 | 2001-07-19 | Siemens Ag | Anordnung zur Übermittlung eines bidirektionalen ISDN-Datenstroms über ein Niederspannungsstromnetz |
US6549616B1 (en) | 2000-03-20 | 2003-04-15 | Serconet Ltd. | Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets |
IL135744A (en) | 2000-04-18 | 2008-08-07 | Mosaid Technologies Inc | Telephone communication system through a single line |
US6842459B1 (en) | 2000-04-19 | 2005-01-11 | Serconet Ltd. | Network combining wired and non-wired segments |
US6697618B1 (en) * | 2000-04-19 | 2004-02-24 | Phonex Broadband Corporation | System and method for detecting failures in a wireless phone/modem jack to prevent telephone line seizures |
US6856647B1 (en) | 2000-10-17 | 2005-02-15 | General Electric Company | Methods and systems for neutral-to-ground communication |
US6703923B2 (en) * | 2001-04-18 | 2004-03-09 | Thomson Licensing S.A. | Apparatus for providing security on a powerline-modem network |
US6704414B2 (en) | 2001-05-17 | 2004-03-09 | Gemini Industries, Inc. | Telephone line extension |
US20020191024A1 (en) * | 2001-06-13 | 2002-12-19 | Timothy Huneycutt | Utility metering slider bar |
IL144158A (en) | 2001-07-05 | 2011-06-30 | Mosaid Technologies Inc | Socket for connecting an analog telephone to a digital communications network that carries digital voice signals |
WO2003039150A1 (en) | 2001-10-11 | 2003-05-08 | Serconet Ltd. | Outlet with analog signal adapter, a method for use thereof and a network using said outlet |
IL154921A (en) | 2003-03-13 | 2011-02-28 | Mosaid Technologies Inc | A telephone system that includes many separate sources and accessories for it |
IL159838A0 (en) | 2004-01-13 | 2004-06-20 | Yehuda Binder | Information device |
US20060017982A1 (en) * | 2004-07-22 | 2006-01-26 | Sharp Laboratories Of America, Inc. | Apparatus and method of limiting facsimile usage on an MFP |
US7873058B2 (en) | 2004-11-08 | 2011-01-18 | Mosaid Technologies Incorporated | Outlet with analog signal adapter, a method for use thereof and a network using said outlet |
JP2006166273A (ja) * | 2004-12-10 | 2006-06-22 | Matsushita Electric Ind Co Ltd | 電力・情報一元管理システムの端末管理方法 |
JP4327747B2 (ja) * | 2005-02-21 | 2009-09-09 | 双葉電子工業株式会社 | 非蒸発ゲッターを備えた電子デバイス及びその電子デバイスの製造方法 |
CN2845331Y (zh) * | 2005-12-15 | 2006-12-06 | 汉士达企业股份有限公司 | 具电力频率载波的电话 |
US8265249B2 (en) | 2007-07-24 | 2012-09-11 | International Business Machines Corporation | Changing a state of a remote switch box which connects a phone to a network |
US7864035B2 (en) * | 2007-10-26 | 2011-01-04 | Embarq Holdings Company, Llc | System and method for determining whether a cordless handset is at a base unit |
US20090147837A1 (en) * | 2007-12-07 | 2009-06-11 | Eddie Lau | Wireless system synchronization using frequency shift modulation and on-off keying modulation |
US8145244B2 (en) * | 2008-10-22 | 2012-03-27 | Embarq Holdings Company, Llc | System and method for determining base unit position of a cordless handset |
Family Cites Families (171)
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US2264396A (en) | 1940-10-22 | 1941-12-02 | Bell Telephone Labor Inc | Power line carrier frequency telephone system |
US2294905A (en) | 1941-04-19 | 1942-09-08 | Bell Telephone Labor Inc | Power line telephone system |
FR908688A (fr) * | 1942-02-20 | 1946-04-16 | Constr Telephoniques | Système de trafic à haute fréquence sur lignes de transport d'énergie |
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US2516763A (en) * | 1946-08-22 | 1950-07-25 | Bell Telephone Labor Inc | Power line carrier frequency telephone system |
US2510273A (en) * | 1946-10-11 | 1950-06-06 | Bell Telephone Labor Inc | Power line carrier frequency telephone system |
US2567908A (en) * | 1947-07-31 | 1951-09-11 | Monmouth Lab Inc | Radio carrier alarm system |
US2535446A (en) * | 1948-06-16 | 1950-12-26 | Bell Telephone Labor Inc | Carrier communication system |
US2654805A (en) * | 1949-10-28 | 1953-10-06 | Westinghouse Electric Corp | Remote-control system |
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US2820097A (en) * | 1952-08-29 | 1958-01-14 | Westinghouse Air Brake Co | Apparatus for carrier intercommunication systems |
JPS31655B1 (de) * | 1952-09-25 | 1956-02-03 | ||
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US3766479A (en) * | 1971-10-04 | 1973-10-16 | Ncr | Carrier detection circuit |
BE791760A (fr) * | 1971-11-22 | 1973-03-16 | Kilby Jack St Clair | Systeme de repondeur telephonique |
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-
1993
- 1993-03-22 US US08/034,086 patent/US5530737A/en not_active Expired - Lifetime
-
1994
- 1994-03-21 CN CN94192156A patent/CN1119009C/zh not_active Expired - Fee Related
- 1994-03-21 DE DE69433861T patent/DE69433861T2/de not_active Expired - Lifetime
- 1994-03-21 AU AU67661/94A patent/AU6766194A/en not_active Abandoned
- 1994-03-21 KR KR1019950704062A patent/KR100196492B1/ko not_active IP Right Cessation
- 1994-03-21 WO PCT/US1994/003110 patent/WO1994022257A1/en active IP Right Grant
- 1994-03-21 EP EP94915766A patent/EP0691059B1/de not_active Expired - Lifetime
- 1994-03-21 CA CA002155220A patent/CA2155220C/en not_active Expired - Lifetime
- 1994-03-21 BR BR9406019A patent/BR9406019A/pt not_active IP Right Cessation
- 1994-03-21 AT AT94915766T patent/ATE270017T1/de not_active IP Right Cessation
- 1994-03-21 ES ES94915766T patent/ES2227526T3/es not_active Expired - Lifetime
- 1994-03-21 JP JP6521338A patent/JPH08511381A/ja active Pending
-
1995
- 1995-11-22 TW TW084112430A patent/TW321811B/zh active
-
1996
- 1996-04-29 US US08/639,508 patent/US5852785A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1119009C (zh) | 2003-08-20 |
ES2227526T3 (es) | 2005-04-01 |
JPH08511381A (ja) | 1996-11-26 |
EP0691059A4 (de) | 1999-11-24 |
DE69433861T2 (de) | 2005-07-28 |
TW321811B (de) | 1997-12-01 |
KR100196492B1 (ko) | 1999-06-15 |
WO1994022257A1 (en) | 1994-09-29 |
CN1124078A (zh) | 1996-06-05 |
AU6766194A (en) | 1994-10-11 |
BR9406019A (pt) | 1995-12-19 |
KR960701552A (ko) | 1996-02-24 |
EP0691059B1 (de) | 2004-06-23 |
CA2155220C (en) | 1999-08-17 |
US5530737A (en) | 1996-06-25 |
EP0691059A1 (de) | 1996-01-10 |
US5852785A (en) | 1998-12-22 |
CA2155220A1 (en) | 1994-09-29 |
ATE270017T1 (de) | 2004-07-15 |
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