GB1548145A - Telephones - Google Patents

Telephones

Info

Publication number
GB1548145A
GB1548145A GB679878A GB679878A GB1548145A GB 1548145 A GB1548145 A GB 1548145A GB 679878 A GB679878 A GB 679878A GB 679878 A GB679878 A GB 679878A GB 1548145 A GB1548145 A GB 1548145A
Authority
GB
United Kingdom
Prior art keywords
microtelephone
subscriber station
telephones
powered
hook
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
GB679878A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB679878A priority Critical patent/GB1548145A/en
Priority to DE19782847487 priority patent/DE2847487A1/en
Priority to CH171279A priority patent/CH641615A5/en
Publication of GB1548145A publication Critical patent/GB1548145A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/737—Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)

Abstract

In a cordless telephone subscriber station, the connection between the microtelephone (2) and the subscriber station (1) is set up with the aid of IR links (3-5, 4-6). The circuits provided in the microtelephone are powered by a rechargeable battery which is charged from the subscriber line when the microtelephone is on-hook. <IMAGE>
GB679878A 1978-02-21 1978-02-21 Telephones Expired GB1548145A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB679878A GB1548145A (en) 1978-02-21 1978-02-21 Telephones
DE19782847487 DE2847487A1 (en) 1978-02-21 1978-11-02 TELEPHONE SET OF A BASIC SET AND A CORDLESS HANDSET
CH171279A CH641615A5 (en) 1978-02-21 1979-02-21 Cordless telephone subscriber station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB679878A GB1548145A (en) 1978-02-21 1978-02-21 Telephones

Publications (1)

Publication Number Publication Date
GB1548145A true GB1548145A (en) 1979-07-04

Family

ID=9820965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB679878A Expired GB1548145A (en) 1978-02-21 1978-02-21 Telephones

Country Status (3)

Country Link
CH (1) CH641615A5 (en)
DE (1) DE2847487A1 (en)
GB (1) GB1548145A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009295A1 (en) * 1978-09-27 1980-04-02 International Standard Electric Corporation Infrared light communication equipment
EP0027833A1 (en) * 1979-10-30 1981-05-06 Siemens Aktiengesellschaft Telephone substation
WO1981001491A1 (en) * 1979-11-22 1981-05-28 Siemens Ag Subscriber telephone station
EP0030708A1 (en) * 1979-12-14 1981-06-24 Roland Dipl.-Ing. Wirth Switching system with paging function
US4450319A (en) * 1981-07-31 1984-05-22 Controlonics Corporation Infrared telephone extension control system
US4458111A (en) * 1981-01-23 1984-07-03 Tandy Corporation Charging and discharging circuit
US4553267A (en) * 1981-07-31 1985-11-12 Crimmins James W Infrared telephone extension modulation system
GB2199425A (en) * 1986-12-17 1988-07-06 Gen Electric Plc Optical communication systems using a lens
CN113676813A (en) * 2021-08-20 2021-11-19 维沃移动通信有限公司 Charging box, control method and device thereof, earphone assembly and readable storage medium

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8437641U1 (en) * 1984-12-21 1985-05-30 Schrack Elektronik-Ag, Wien COMMUNICATION TERMINAL
DE3607885A1 (en) * 1986-03-10 1987-09-17 Precitronic Intercom device
CA1268569A (en) * 1986-11-10 1990-05-01 Temco Japan Co., Ltd. Telephone equipment utilizing ear microphone
DE3942428C2 (en) * 1989-12-21 1994-07-14 Siemens Ag Complementary device for telephone sets
DE4026073A1 (en) * 1990-08-17 1992-02-20 Telefunken Systemtechnik Control point coupling mobile data terminal to fixed data processor - has two components forming transceiver for electromagnetic waves, and air path as transmission line
DE4121195A1 (en) * 1991-06-27 1993-01-14 Telefonbau & Normalzeit Gmbh Telephone installation with several telephone appts. - has at least one handset with microphone, hearing capsule, and transceiver device
DE9111284U1 (en) * 1991-09-11 1992-01-09 Baji&cacute;, Ivan, 2390 Flensburg Device for wireless connection

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009295A1 (en) * 1978-09-27 1980-04-02 International Standard Electric Corporation Infrared light communication equipment
EP0027833A1 (en) * 1979-10-30 1981-05-06 Siemens Aktiengesellschaft Telephone substation
WO1981001491A1 (en) * 1979-11-22 1981-05-28 Siemens Ag Subscriber telephone station
EP0030708A1 (en) * 1979-12-14 1981-06-24 Roland Dipl.-Ing. Wirth Switching system with paging function
US4458111A (en) * 1981-01-23 1984-07-03 Tandy Corporation Charging and discharging circuit
US4450319A (en) * 1981-07-31 1984-05-22 Controlonics Corporation Infrared telephone extension control system
US4553267A (en) * 1981-07-31 1985-11-12 Crimmins James W Infrared telephone extension modulation system
GB2199425A (en) * 1986-12-17 1988-07-06 Gen Electric Plc Optical communication systems using a lens
GB2199425B (en) * 1986-12-17 1990-10-10 Gen Electric Plc Free-space optical communication system.
CN113676813A (en) * 2021-08-20 2021-11-19 维沃移动通信有限公司 Charging box, control method and device thereof, earphone assembly and readable storage medium
CN113676813B (en) * 2021-08-20 2024-01-09 维沃移动通信有限公司 Charging box, control method and device thereof, earphone assembly and readable storage medium

Also Published As

Publication number Publication date
DE2847487A1 (en) 1979-08-23
CH641615A5 (en) 1984-02-29

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19980220