GB2274959B - Battery powered telephone visual ringing indicator - Google Patents

Battery powered telephone visual ringing indicator

Info

Publication number
GB2274959B
GB2274959B GB9302428A GB9302428A GB2274959B GB 2274959 B GB2274959 B GB 2274959B GB 9302428 A GB9302428 A GB 9302428A GB 9302428 A GB9302428 A GB 9302428A GB 2274959 B GB2274959 B GB 2274959B
Authority
GB
United Kingdom
Prior art keywords
battery powered
powered telephone
ringing indicator
visual ringing
telephone visual
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
GB9302428A
Other versions
GB2274959A (en
GB9302428D0 (en
Inventor
Neal Ferris
Michael Ferris
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9302428A priority Critical patent/GB2274959B/en
Publication of GB9302428D0 publication Critical patent/GB9302428D0/en
Publication of GB2274959A publication Critical patent/GB2274959A/en
Application granted granted Critical
Publication of GB2274959B publication Critical patent/GB2274959B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/048—Arrangements providing optical indication of the incoming call, e.g. flasher circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
GB9302428A 1993-02-08 1993-02-08 Battery powered telephone visual ringing indicator Expired - Fee Related GB2274959B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9302428A GB2274959B (en) 1993-02-08 1993-02-08 Battery powered telephone visual ringing indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9302428A GB2274959B (en) 1993-02-08 1993-02-08 Battery powered telephone visual ringing indicator

Publications (3)

Publication Number Publication Date
GB9302428D0 GB9302428D0 (en) 1993-03-24
GB2274959A GB2274959A (en) 1994-08-10
GB2274959B true GB2274959B (en) 1997-03-12

Family

ID=10730029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9302428A Expired - Fee Related GB2274959B (en) 1993-02-08 1993-02-08 Battery powered telephone visual ringing indicator

Country Status (1)

Country Link
GB (1) GB2274959B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU688572B2 (en) * 1994-10-21 1998-03-12 Alcatel Australia Limited Network service status indicators

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389607A (en) * 1972-09-25 1975-04-03 Plessey Co Ltd Electric lamp assembly
US4015091A (en) * 1975-12-05 1977-03-29 Bell Telephone Laboratories, Incorporated Telephone ringing generators
EP0031916A1 (en) * 1980-01-05 1981-07-15 Neumann Elektronik GmbH Electro-optic ringer
GB2158677A (en) * 1984-05-07 1985-11-13 Robert J Alderman Line powered flasher circuit for providing visual indication of telephone ringing signal
GB2232557A (en) * 1989-05-26 1990-12-12 Plantronics Hearing assist telephone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389607A (en) * 1972-09-25 1975-04-03 Plessey Co Ltd Electric lamp assembly
US4015091A (en) * 1975-12-05 1977-03-29 Bell Telephone Laboratories, Incorporated Telephone ringing generators
EP0031916A1 (en) * 1980-01-05 1981-07-15 Neumann Elektronik GmbH Electro-optic ringer
GB2158677A (en) * 1984-05-07 1985-11-13 Robert J Alderman Line powered flasher circuit for providing visual indication of telephone ringing signal
GB2232557A (en) * 1989-05-26 1990-12-12 Plantronics Hearing assist telephone

Also Published As

Publication number Publication date
GB2274959A (en) 1994-08-10
GB9302428D0 (en) 1993-03-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010208