BE587430A - Système de signalisation dans la bande de frequences vocales - Google Patents
Système de signalisation dans la bande de frequences vocalesInfo
- Publication number
- BE587430A BE587430A BE587430A BE587430A BE587430A BE 587430 A BE587430 A BE 587430A BE 587430 A BE587430 A BE 587430A BE 587430 A BE587430 A BE 587430A BE 587430 A BE587430 A BE 587430A
- Authority
- BE
- Belgium
- Prior art keywords
- frequency band
- signaling system
- voice frequency
- voice
- signaling
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US808709A US3114005A (en) | 1959-04-24 | 1959-04-24 | Inband signaling system |
Publications (1)
Publication Number | Publication Date |
---|---|
BE587430A true BE587430A (fr) | 1961-05-30 |
Family
ID=25199490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE587430A BE587430A (fr) | 1959-04-24 | 1960-02-10 | Système de signalisation dans la bande de frequences vocales |
Country Status (2)
Country | Link |
---|---|
US (1) | US3114005A (fr) |
BE (1) | BE587430A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1165099B (de) * | 1962-07-17 | 1964-03-12 | Standard Elektrik Lorenz Ag | Empfangseinrichtung fuer tonfrequente Tastwahl-Codezeichen in Fernmelde-, insbesondere Fernsprechanlagen |
US3306984A (en) * | 1963-12-16 | 1967-02-28 | Bell Telephone Labor Inc | Elimination of talk-off in in-band signaling systems |
US5206902A (en) * | 1991-04-01 | 1993-04-27 | At&T Bell Laboratories | Network signaling arrangement for controlling tandem network functions |
US5471527A (en) * | 1993-12-02 | 1995-11-28 | Dsc Communications Corporation | Voice enhancement system and method |
US5802164A (en) * | 1995-12-22 | 1998-09-01 | At&T Corp | Systems and methods for controlling telephone sound enhancement on a per call basis |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB418903A (en) * | 1933-05-02 | 1934-11-02 | Automatic Electric Co Ltd | Improvements in or relating to telephone or like systems |
US2299822A (en) * | 1940-04-05 | 1942-10-27 | Bell Telephone Labor Inc | Signaling system |
US2299821A (en) * | 1940-04-05 | 1942-10-27 | Bell Telephone Labor Inc | Signaling system |
GB641888A (en) * | 1947-02-07 | 1950-08-23 | Standard Telephones Cables Ltd | Improvements in or relating to electric signalling systems |
US2765371A (en) * | 1954-11-24 | 1956-10-02 | Bell Telephone Labor Inc | Signal converter for communication systems |
US2892896A (en) * | 1955-06-08 | 1959-06-30 | T S Skillman And Company Pty L | Signalling arrangements |
-
1959
- 1959-04-24 US US808709A patent/US3114005A/en not_active Expired - Lifetime
-
1960
- 1960-02-10 BE BE587430A patent/BE587430A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US3114005A (en) | 1963-12-10 |
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