CA1096521A - Key telephone station set circuit - Google Patents

Key telephone station set circuit

Info

Publication number
CA1096521A
CA1096521A CA289,404A CA289404A CA1096521A CA 1096521 A CA1096521 A CA 1096521A CA 289404 A CA289404 A CA 289404A CA 1096521 A CA1096521 A CA 1096521A
Authority
CA
Canada
Prior art keywords
station set
flip
signal
gate
flop
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
Application number
CA289,404A
Other languages
English (en)
French (fr)
Inventor
Donald D. Huizinga
James A. Whitcomb
Edward W. Underhill
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA1096521A publication Critical patent/CA1096521A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H04M9/007—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
CA289,404A 1976-10-27 1977-10-25 Key telephone station set circuit Expired CA1096521A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US735,991 1976-10-27
US05/735,991 US4046972A (en) 1976-10-27 1976-10-27 Key telephone station set circuit

Publications (1)

Publication Number Publication Date
CA1096521A true CA1096521A (en) 1981-02-24

Family

ID=24958034

Family Applications (1)

Application Number Title Priority Date Filing Date
CA289,404A Expired CA1096521A (en) 1976-10-27 1977-10-25 Key telephone station set circuit

Country Status (7)

Country Link
US (1) US4046972A (enExample)
JP (1) JPS5354402A (enExample)
BE (1) BE860182A (enExample)
CA (1) CA1096521A (enExample)
CH (1) CH624251A5 (enExample)
DE (1) DE2747854C2 (enExample)
GB (1) GB1534459A (enExample)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184054A (en) * 1977-03-28 1980-01-15 Tokyo Shibaura Electric Co., Ltd. Key telephone system
US4173714A (en) * 1977-06-03 1979-11-06 Tie/Communications, Inc. Communication circuit with combined power feed and data transmission over a phantom channel
US4150259A (en) * 1977-10-31 1979-04-17 Bell Telephone Laboratories, Incorporated Communication system conferencing arrangement
US4109113A (en) * 1977-10-31 1978-08-22 Bell Telephone Laboratories, Incorporated Communication system optimized pooled line arrangement
US4125748A (en) * 1977-10-31 1978-11-14 Bell Telephone Laboratories, Incorporated Communication system call transfer arrangement
US4150257A (en) * 1977-10-31 1979-04-17 Bell Telephone Laboratories, Incorporated Communication system call coverage arrangements
US4166199A (en) * 1977-11-25 1979-08-28 Stromberg-Carlson Corporation Attendant console complex
US4203011A (en) * 1978-01-17 1980-05-13 Tie/Communications, Inc. Computer controlled key telephone station set
US4229815A (en) * 1978-11-20 1980-10-21 Bell Telephone Laboratories, Incorporated Full duplex bit synchronous data rate buffer
US4220827A (en) * 1979-02-21 1980-09-02 Bell Telephone Laboratories, Incorporated Telephone signaling circuit
US4216356A (en) * 1979-02-21 1980-08-05 Bell Telephone Laboratories, Incorporated Telephone having separate voice and signaling pairs
US4291199A (en) * 1979-03-28 1981-09-22 Bell Telephone Laboratories, Incorporated Communication system tracking arrangement
US4292474A (en) * 1979-08-13 1981-09-29 Oki Electronics Of America, Inc. Electronic key telephone system with bi-directional serial data stream station control
US4309755A (en) * 1979-08-22 1982-01-05 Bell Telephone Laboratories, Incorporated Computer input/output arrangement for enabling a simultaneous read/write data transfer
US4382163A (en) * 1979-10-03 1983-05-03 Gte Automatic Electric Labs Inc. Microcomputer controlled key telephone line circuit
DE2949499C2 (de) * 1979-12-08 1982-06-03 Krone Gmbh, 1000 Berlin Anzeigeeinrichtung für Symbole der Fernsprechtechnik
FR2481031B1 (fr) * 1980-04-22 1988-06-10 Telephonie Ind Commerciale Terminal d'intercommunication universel
US4315110A (en) * 1980-04-28 1982-02-09 International Telephone And Telegraph Corporation Multiple line telephone instrument
US4296282A (en) * 1980-06-30 1981-10-20 Bell Telephone Laboratories, Incorporated Incoming call identification arrangement
JPS5721150A (en) * 1980-07-14 1982-02-03 Fujitsu Ltd Extension callout system
DE3036182C2 (de) * 1980-09-25 1983-12-01 Siemens AG, 1000 Berlin und 8000 München Verfahren zur wechselseitigen Übertragung von binären Digitalsignalen zwischen einer zentralen Einrichtung und mit ihr verbundenen Fernsprechteilnehmerstellen
US4374308A (en) * 1981-04-30 1983-02-15 Siemens Corporation I-Use indication in a telephone keyset
USD275195S (en) 1981-07-30 1984-08-21 Telecommunications Radioelectriques & Telephoniques Telephone
DE3131360A1 (de) * 1981-08-07 1983-04-28 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer kleine nebenstellenanlagen mit einer den teilnehmerstellen gemeinsamen und mit hilfe einer steuerrechnereinheit vermittlungsvorgaenge abwickelnden einrichtung
DE3131298A1 (de) * 1981-08-07 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer kleine nebenstellenanlagen mit einer den teilnehmerstellen gemeinsamen und mit hilfe einer steuerrechnereinheit vermittlungsvorgaenge abwickelnden einrichtung
DE3131343A1 (de) * 1981-08-07 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer kleine nebenstellenanlagen mit einer den teilnehmerstellen gemeinsamen u. mit hilfe einer steuerrechnereinheit vermittlungsvorgaenge abwickelnden einrichtung
DE3132971A1 (de) * 1981-08-20 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer fernsprechvermittlungsanlagen, insbesondere kleine nebenstellenanlagen, bei denen zwischen den teilnehmerstellen und einer ihnen gemeinsamen einrichtung eine signalisierung vorgenommen wird
USD286042S (en) 1981-11-07 1986-10-07 Tokyo Shibaura Denki Kabushiki Kaisha Telephone
JPS58195393A (ja) * 1982-05-10 1983-11-14 Nec Corp ボタン電話装置
US4449017A (en) * 1982-05-28 1984-05-15 Bell Telephone Laboratories, Incorporated ACD Combined handset and headset arrangement
US4451705A (en) * 1982-05-28 1984-05-29 Bell Telephone Laboratories, Incorporated Call completion circuit and method
USD288810S (en) 1982-10-04 1987-03-17 KabushikiKaisha Taikodenki Seisakusho Telephone
CA1188831A (en) * 1982-12-14 1985-06-11 Mitel Corporation Telephone indicator
JPS59160397A (ja) * 1983-03-03 1984-09-11 Toshiba Corp ボタン電話装置におけるボタン電話機の機能割当て方式
USD282258S (en) 1983-07-18 1986-01-21 Tie/Communications, Inc. Base for a telephone set
USD282168S (en) 1983-07-18 1986-01-14 Tie/Communications, Inc. Base for a telephone set
USD282167S (en) 1983-07-18 1986-01-14 Tie/Communications, Inc. Base for a telephone set
GB8413208D0 (en) * 1984-05-23 1984-06-27 Plessey Co Plc Telecommunication systems
US4644106A (en) * 1985-01-10 1987-02-17 Inventa Electronics Co., Ltd. Apparatus for timely controlling the sound characteristic of a signaling means of a voice communication device
JPS61212990A (ja) * 1985-03-18 1986-09-20 Nitsuko Ltd 内線電話機呼出方式
EP0195635B1 (en) * 1985-03-20 1993-05-26 Nec Corporation Key telephone system
USD300931S (en) 1985-08-26 1989-05-02 Stierwalt Harry M Face panel for a telephone stand
USD293441S (en) 1986-06-19 1987-12-29 American Telephone And Telegraph Company Telephone stand
USD293321S (en) 1986-06-19 1987-12-22 American Telephone & Telegraph Company, At&T Information Systems Inc. Telephone stand
US4800438A (en) * 1987-12-08 1989-01-24 Yuter Seymour C Telephone console for restaurant tables
USD320797S (en) 1989-07-13 1991-10-15 Meisei Electric Co., Ltd. Telephone instrument set
USD318661S (en) 1990-07-16 1991-07-30 International Telecommunication Corp. Telephone base
USD326263S (en) 1990-07-16 1992-05-19 International Telecommunication Corp. Telephone base with display
USD328295S (en) 1991-05-23 1992-07-28 Northern Telecom Limited Base for a telephone set
USD330028S (en) 1991-05-23 1992-10-06 Northern Telecom Limited Base for a telephone set
WO1998056155A1 (en) * 1997-06-05 1998-12-10 Noach Uziel Malimovka System and method to set up a communication based on identification cards
WO1999053627A1 (en) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
USD452489S1 (en) 2000-12-20 2001-12-25 Kabushiki Kaisha Toshiba Telephone
USD552589S1 (en) * 2005-10-28 2007-10-09 Kabushiki Kaisha Toshiba Telephone set

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146314A (en) * 1961-09-25 1964-08-25 Gen Dynamics Corp Means for generating warbling tone ringing signals in a time division multiplex communication system
US3385935A (en) * 1964-10-19 1968-05-28 Bell Telephone Labor Inc Key telephone system
US3519757A (en) * 1968-02-27 1970-07-07 Bell Telephone Labor Inc Electronic key telephone system
US3763326A (en) * 1972-05-22 1973-10-02 Bell Canada Northern Electric Telephone audio signalling arrangement
CA1018270A (en) * 1972-05-23 1977-09-27 Federico R. Laliccia Key telephone system using time division and space division control
US3843845A (en) * 1972-09-11 1974-10-22 Northern Electric Co Electronic key telephone system
US3906168A (en) * 1973-12-12 1975-09-16 Bell Telephone Labor Inc Visual status indicator circuit
US3973085A (en) * 1974-09-26 1976-08-03 The Anaconda Company Key telephone system with directly associated station cards and sets
US3991282A (en) * 1974-12-27 1976-11-09 Feil Thomas E Multi station telephone switching system
US3946146A (en) * 1975-01-17 1976-03-23 Gte Automatic Electric Laboratories Incorporated Discrete ringing detector for use in key telephone systems

Also Published As

Publication number Publication date
DE2747854A1 (de) 1978-05-03
GB1534459A (en) 1978-12-06
JPS5354402A (en) 1978-05-17
CH624251A5 (enExample) 1981-07-15
DE2747854C2 (de) 1986-01-30
US4046972A (en) 1977-09-06
BE860182A (fr) 1978-02-15
JPS6160640B2 (enExample) 1986-12-22

Similar Documents

Publication Publication Date Title
CA1096521A (en) Key telephone station set circuit
US4296282A (en) Incoming call identification arrangement
US4125749A (en) Key telephone systems
GB2122846A (en) Call completion circuit and method
CA1251587A (en) Ringing signal reformatting circuit
WO1979000253A1 (en) Communication system conferencing arrangement
CA1219663A (en) Data call transfer
US4394757A (en) Frame format for PCM speech data in a telephone transmission system and digital telephone apparatus for use with this frame format
US3906168A (en) Visual status indicator circuit
CA1063271A (en) Signal sending control system
US4087643A (en) Time division multiplexed PABX communication switching system
CA1048185A (en) Two-party telephone system
US3920928A (en) Line control circuit
USRE29078E (en) Key telephone system
GB1272723A (en) Key telephone systems using pushbutton or rotary dials
US3920929A (en) Key telephone system
CA1071784A (en) Link circuit for intercom unit
US3916116A (en) Hold bridge circuit
US3530254A (en) Executive conferencing system
JPS57212856A (en) Terminal adaptor system
CA1185024A (en) Signalling in pbx systems
CA1161177A (en) Multiple line telephone instrument
CA1058764A (en) Serial data reception system
JPH04192699A (ja) ボタン電話装置の着信識別方式
ES8502590A1 (es) Un detector de llamada para centralitas privadas con marcacion de entrada directa

Legal Events

Date Code Title Description
MKEX Expiry