GB2287377B - Digitally controlled ringer signal generation - Google Patents

Digitally controlled ringer signal generation

Info

Publication number
GB2287377B
GB2287377B GB9507685A GB9507685A GB2287377B GB 2287377 B GB2287377 B GB 2287377B GB 9507685 A GB9507685 A GB 9507685A GB 9507685 A GB9507685 A GB 9507685A GB 2287377 B GB2287377 B GB 2287377B
Authority
GB
United Kingdom
Prior art keywords
signal generation
digitally controlled
ringer signal
ringer
digitally
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
GB9507685A
Other versions
GB2287377A (en
GB9507685D0 (en
Inventor
Dan R F Oprea
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.)
Microsemi Semiconductor ULC
Original Assignee
Mitel Corp
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
Priority claimed from CA002044437A external-priority patent/CA2044437C/en
Application filed by Mitel Corp filed Critical Mitel Corp
Publication of GB9507685D0 publication Critical patent/GB9507685D0/en
Publication of GB2287377A publication Critical patent/GB2287377A/en
Application granted granted Critical
Publication of GB2287377B publication Critical patent/GB2287377B/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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B3/1025—Paging receivers with audible signalling details
GB9507685A 1991-06-12 1992-06-08 Digitally controlled ringer signal generation Expired - Fee Related GB2287377B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002044437A CA2044437C (en) 1991-06-12 1991-06-12 Digitally controlled ringer signal generation
GB9212085A GB2256775B (en) 1991-06-12 1992-06-08 Digitally controlled ringer signal generation

Publications (3)

Publication Number Publication Date
GB9507685D0 GB9507685D0 (en) 1995-05-31
GB2287377A GB2287377A (en) 1995-09-13
GB2287377B true GB2287377B (en) 1995-12-13

Family

ID=25674654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9507685A Expired - Fee Related GB2287377B (en) 1991-06-12 1992-06-08 Digitally controlled ringer signal generation

Country Status (1)

Country Link
GB (1) GB2287377B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303271B (en) * 1995-07-10 1999-07-14 Hong Kong Telecommunications L Telephone network
FI114769B (en) 1997-09-04 2004-12-15 Nokia Corp Procedure for processing the telephone numbers in mobile station and mobile station
ID25920A (en) 1998-01-08 2000-11-09 Sanyo Electric Co EQUIPMENT WARNING AND COMMUNICATION SYSTEM WITHOUT THE CABLE CONTAINS IT
FR2825553A1 (en) * 2001-06-05 2002-12-06 Thomson Multimedia Sa Ring activation unit for mobile phones allows group activation for musical and social use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134752A (en) * 1983-01-18 1984-08-15 Plessey Co Plc Tone generator
GB2183423A (en) * 1985-11-23 1987-06-03 Stc Plc Telephone tone caller
GB2193419A (en) * 1986-08-01 1988-02-03 British Telecomm Ringing indicator
GB2257328A (en) * 1989-09-15 1993-01-06 Rockwell International Corp Telephone switching tone and message utility

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134752A (en) * 1983-01-18 1984-08-15 Plessey Co Plc Tone generator
GB2183423A (en) * 1985-11-23 1987-06-03 Stc Plc Telephone tone caller
GB2193419A (en) * 1986-08-01 1988-02-03 British Telecomm Ringing indicator
GB2257328A (en) * 1989-09-15 1993-01-06 Rockwell International Corp Telephone switching tone and message utility

Also Published As

Publication number Publication date
GB2287377A (en) 1995-09-13
GB9507685D0 (en) 1995-05-31

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Legal Events

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

Effective date: 19970608