GB2299244B - A ringing voltage trigger circuit - Google Patents

A ringing voltage trigger circuit

Info

Publication number
GB2299244B
GB2299244B GB9606214A GB9606214A GB2299244B GB 2299244 B GB2299244 B GB 2299244B GB 9606214 A GB9606214 A GB 9606214A GB 9606214 A GB9606214 A GB 9606214A GB 2299244 B GB2299244 B GB 2299244B
Authority
GB
United Kingdom
Prior art keywords
trigger circuit
ringing voltage
voltage trigger
ringing
circuit
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
GB9606214A
Other versions
GB9606214D0 (en
GB2299244A (en
Inventor
Karl Pawley
Michael O'dwyer
Caoimhin O'laoi
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.)
Lake Electronic Technologies Ltd
Original Assignee
Lake Electronic Technologies Ltd
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 Lake Electronic Technologies Ltd filed Critical Lake Electronic Technologies Ltd
Publication of GB9606214D0 publication Critical patent/GB9606214D0/en
Publication of GB2299244A publication Critical patent/GB2299244A/en
Application granted granted Critical
Publication of GB2299244B publication Critical patent/GB2299244B/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
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
GB9606214A 1995-03-24 1996-03-25 A ringing voltage trigger circuit Expired - Fee Related GB2299244B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IES950210 IES65388B2 (en) 1995-03-24 1995-03-24 A ringing voltage trigger circuit

Publications (3)

Publication Number Publication Date
GB9606214D0 GB9606214D0 (en) 1996-05-29
GB2299244A GB2299244A (en) 1996-09-25
GB2299244B true GB2299244B (en) 1999-04-21

Family

ID=11040692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9606214A Expired - Fee Related GB2299244B (en) 1995-03-24 1996-03-25 A ringing voltage trigger circuit

Country Status (2)

Country Link
GB (1) GB2299244B (en)
IE (1) IES65388B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183423A (en) * 1985-11-23 1987-06-03 Stc Plc Telephone tone caller
US5099513A (en) * 1989-04-26 1992-03-24 Samsung Electronics Co. Ltd. Integrated circuit for generating a melody and ring
GB2250401A (en) * 1990-10-23 1992-06-03 Lake Electronic Tech Speech and ringer volume attenuation control circuit for a handsfree telephone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183423A (en) * 1985-11-23 1987-06-03 Stc Plc Telephone tone caller
US5099513A (en) * 1989-04-26 1992-03-24 Samsung Electronics Co. Ltd. Integrated circuit for generating a melody and ring
GB2250401A (en) * 1990-10-23 1992-06-03 Lake Electronic Tech Speech and ringer volume attenuation control circuit for a handsfree telephone

Also Published As

Publication number Publication date
IES950210A2 (en) 1995-10-18
GB9606214D0 (en) 1996-05-29
GB2299244A (en) 1996-09-25
IES65388B2 (en) 1995-10-18

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Legal Events

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

Effective date: 20000325