FR2754414B1 - Discriminateur de signaux de sonnerie - Google Patents
Discriminateur de signaux de sonnerieInfo
- Publication number
- FR2754414B1 FR2754414B1 FR9612472A FR9612472A FR2754414B1 FR 2754414 B1 FR2754414 B1 FR 2754414B1 FR 9612472 A FR9612472 A FR 9612472A FR 9612472 A FR9612472 A FR 9612472A FR 2754414 B1 FR2754414 B1 FR 2754414B1
- Authority
- FR
- France
- Prior art keywords
- signal discriminator
- ringer signal
- ringer
- discriminator
- signal
- 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
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
- H04M19/041—Encoding the ringing signal, i.e. providing distinctive or selective ringing capability
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9612472A FR2754414B1 (fr) | 1996-10-07 | 1996-10-07 | Discriminateur de signaux de sonnerie |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9612472A FR2754414B1 (fr) | 1996-10-07 | 1996-10-07 | Discriminateur de signaux de sonnerie |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2754414A1 FR2754414A1 (fr) | 1998-04-10 |
FR2754414B1 true FR2754414B1 (fr) | 1998-12-24 |
Family
ID=9496609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9612472A Expired - Fee Related FR2754414B1 (fr) | 1996-10-07 | 1996-10-07 | Discriminateur de signaux de sonnerie |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2754414B1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2793638A1 (fr) * | 1999-05-12 | 2000-11-17 | Ascom Monetel Sa | Systeme d'alimentation a partir d'une ligne telephonique |
FR2793637B1 (fr) * | 1999-05-12 | 2001-07-27 | Ascom Monetel Sa | Systeme d'alimentation a partir d'une ligne telephonique |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4658419A (en) * | 1981-07-22 | 1987-04-14 | Floyd Bell Associates, Inc. | Telephone ringer circuit |
US5040209A (en) * | 1989-09-18 | 1991-08-13 | Greenberg Melvin B | Telephone ringing monitoring and control system |
GB2249456A (en) * | 1990-06-08 | 1992-05-06 | Tung Shu Wen | Automatic telephone ringing judgment control |
EP0661865B1 (fr) * | 1993-12-13 | 1999-01-27 | Hewlett-Packard Company | Appareil de télécommunication |
-
1996
- 1996-10-07 FR FR9612472A patent/FR2754414B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2754414A1 (fr) | 1998-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |