AU535624B2 - Digital telephone station - Google Patents

Digital telephone station

Info

Publication number
AU535624B2
AU535624B2 AU57861/80A AU5786180A AU535624B2 AU 535624 B2 AU535624 B2 AU 535624B2 AU 57861/80 A AU57861/80 A AU 57861/80A AU 5786180 A AU5786180 A AU 5786180A AU 535624 B2 AU535624 B2 AU 535624B2
Authority
AU
Australia
Prior art keywords
line
information
additional equipment
terminals
subscriber
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 - Fee Related
Application number
AU57861/80A
Other versions
AU5786180A (en
Inventor
Arthur Kessler
Juegen Loetzsch
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.)
Tenovis GmbH and Co KG
Original Assignee
Telefonbau und Normalzeit GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6069682&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU535624(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Telefonbau und Normalzeit GmbH filed Critical Telefonbau und Normalzeit GmbH
Publication of AU5786180A publication Critical patent/AU5786180A/en
Application granted granted Critical
Publication of AU535624B2 publication Critical patent/AU535624B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/066—Telephone sets adapted for data transmision
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/71—Substation extension arrangements
    • H04M1/715—Substation extension arrangements using two or more extensions per line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals

Abstract

1. Circuit arrangement for the connection of additional equipment to a digital telephone station (DT) with units (codecs) for the conversion of the voice information in analog signals and vice versa, which are transmitted full duplex via a two wire remotely fed individual subscriber's line (TAL) and with a first line circuit (L1) as interface to the subscriber's line (TAL), whereby the information arriving at the line circuit is forwarded to an interface for the connection of additional equipment and the information arriving from the additional equipment is forwarded to the subscriber's line, comprising a second interface (L2) having a line circuit for the connection of additional equipment, which is identical with the first line circuit (L1) for the subscriber's line (TAL), whereby the information arriving on the subscriber's line (TAL) and appearing at the terminals (a/b) is forwarded to the terminals (a'/b') of the second line circuit (L2), with these terminals an internal line (JAL) for the connection of additional equipment of the digital telephone station (DT) can be connected, the information transmitted from the additional equipment via the internal line (JAL) appearing at the terminals (a'/b') of the second line circuit (L2) is also retransmitted via a processor (VE) to the terminals (a/b) of the first line circuit, whereby the processor (VE), which is used for receiving, evaluation and generation of the received information and the information to be transmitted (for example speech information, signalling, addressing), prevents the retransmission of information, which is exclusively used on the internal line (JAL).
AU57861/80A 1979-04-30 1980-04-29 Digital telephone station Expired - Fee Related AU535624B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29175700 1979-04-30
DE2917570A DE2917570B1 (en) 1979-04-30 1979-04-30 Circuit arrangement for a digital telephone subscriber station

Publications (2)

Publication Number Publication Date
AU5786180A AU5786180A (en) 1980-11-06
AU535624B2 true AU535624B2 (en) 1984-03-29

Family

ID=6069682

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57861/80A Expired - Fee Related AU535624B2 (en) 1979-04-30 1980-04-29 Digital telephone station

Country Status (5)

Country Link
EP (1) EP0018525B1 (en)
AT (1) ATE2594T1 (en)
AU (1) AU535624B2 (en)
DE (1) DE2917570B1 (en)
IE (1) IE49774B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028155C2 (en) * 1980-07-25 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digital subscriber line for telephony, including text and data services
CA1153137A (en) * 1981-02-27 1983-08-30 Laurence J. Retallack Parallel operation of telephone equipment on a digital loop
DE3221387A1 (en) * 1982-06-05 1983-12-08 Krone Gmbh, 1000 Berlin DIGITAL TELEPHONE DEVICE WITH CONNECTIONS FOR ANALOG ADDITIONAL DEVICES
FR2559007B1 (en) * 1984-02-01 1987-10-09 Philips Ind Commerciale CONNECTION AND COMMUNICATION SYSTEM AND MEANS FOR TELEPHONE SET AND PERITELEPHONY APPARATUS
GB2167920B (en) * 1984-11-28 1988-12-21 Stc Plc Telephone circuit
GR862206B (en) * 1985-09-12 1986-12-31 Univ Tulane Therapeutic somatostatin analogs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643703A1 (en) * 1976-09-28 1978-03-30 Siemens Ag PCM TDM telephone network - has two=wire multiplexed line operated in four-wire mode and with memories and CODEC
DE2729689B1 (en) * 1977-06-30 1978-12-07 Siemens Ag Communication system

Also Published As

Publication number Publication date
EP0018525B1 (en) 1983-02-16
DE2917570B1 (en) 1980-05-14
AU5786180A (en) 1980-11-06
IE800874L (en) 1980-10-30
ATE2594T1 (en) 1983-03-15
EP0018525A1 (en) 1980-11-12
IE49774B1 (en) 1985-12-11

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