FR2384392A1 - Procede et dispositif de transmission de signaux de parole en multiplex - Google Patents
Procede et dispositif de transmission de signaux de parole en multiplexInfo
- Publication number
- FR2384392A1 FR2384392A1 FR7807489A FR7807489A FR2384392A1 FR 2384392 A1 FR2384392 A1 FR 2384392A1 FR 7807489 A FR7807489 A FR 7807489A FR 7807489 A FR7807489 A FR 7807489A FR 2384392 A1 FR2384392 A1 FR 2384392A1
- Authority
- FR
- France
- Prior art keywords
- multiplex
- speech signals
- signals
- sub
- transmission
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title abstract 2
- 239000002131 composite material Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
- H04J3/1688—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
L'invention concerne le domaine des télécommunications. Le dispositif de multiplexage de l'invention comprend un certain nombre de filtres 1, 2, 3... n qui divisent le signal d'entrée en plusieurs sous-voies. Des detecteurs 12 détectent indépendamment l'activité opérationnelle de chaque sous-voie, pour former ensuite des signaux de parole composites à partir des sous-voies actives, et ces signaux composites sont accompagnés de signaux de codage qui indiquent leur composition. Application aux transmissions téléphoniques en multiplex.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10846/77A GB1559897A (en) | 1977-03-15 | 1977-03-15 | Multiplexing speech |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2384392A1 true FR2384392A1 (fr) | 1978-10-13 |
FR2384392B1 FR2384392B1 (fr) | 1983-10-28 |
Family
ID=9975403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7807489A Granted FR2384392A1 (fr) | 1977-03-15 | 1978-03-15 | Procede et dispositif de transmission de signaux de parole en multiplex |
Country Status (11)
Country | Link |
---|---|
US (1) | US4229622A (fr) |
JP (1) | JPS53136911A (fr) |
AU (1) | AU510818B2 (fr) |
BE (1) | BE864936A (fr) |
CA (1) | CA1102021A (fr) |
DE (1) | DE2811293A1 (fr) |
FR (1) | FR2384392A1 (fr) |
GB (1) | GB1559897A (fr) |
IT (1) | IT1107349B (fr) |
NL (1) | NL7802777A (fr) |
SE (1) | SE427605B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0084125A2 (fr) * | 1982-01-15 | 1983-07-27 | International Business Machines Corporation | Appareil pour le multiplexage statistique efficace de signaux de parole et de données |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4442540A (en) * | 1981-06-04 | 1984-04-10 | Bell Telephone Laboratories, Incorporated | Data over voice transmission arrangement |
US4417102A (en) * | 1981-06-04 | 1983-11-22 | Bell Telephone Laboratories, Incorporated | Noise and bit rate reduction arrangements |
DE3270212D1 (en) * | 1982-04-30 | 1986-05-07 | Ibm | Digital coding method and device for carrying out the method |
US4638476A (en) * | 1985-06-21 | 1987-01-20 | At&T Bell Laboratories | Technique for dynamic resource allocation in a communication system |
US4802224A (en) * | 1985-09-26 | 1989-01-31 | Nippon Telegraph And Telephone Corporation | Reference speech pattern generating method |
WO1994030026A1 (fr) * | 1993-06-04 | 1994-12-22 | Motorola Inc. | Methode et appareil d'ajustage dynamique du nombre maximal d'utilisateurs d'un canal physique |
JP3172387B2 (ja) * | 1994-06-01 | 2001-06-04 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | 入出力通信サブシステム及び方法 |
RU2653375C1 (ru) * | 2017-12-05 | 2018-05-08 | Юлия Алексеевна Щепочкина | Сплав на основе железа |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2388001A (en) * | 1944-12-07 | 1945-10-30 | Hazeltine Corp | Signal-transmission system |
US2564419A (en) * | 1947-04-14 | 1951-08-14 | Bell Telephone Labor Inc | Time division multiplex system for signals of different band width |
NL245178A (fr) * | 1958-11-17 | |||
JPS5132924B1 (fr) * | 1962-03-22 | 1976-09-16 | ||
US3424869A (en) * | 1965-06-15 | 1969-01-28 | Bell Telephone Labor Inc | Digital speech interpolation communication system |
US4032719A (en) * | 1975-06-26 | 1977-06-28 | International Business Machines Corporation | Modular slot interchange digital exchange |
US4131765A (en) * | 1976-08-09 | 1978-12-26 | Kahn Leonard R | Method and means for improving the spectrum utilization of communications channels |
US4100377A (en) * | 1977-04-28 | 1978-07-11 | Bell Telephone Laboratories, Incorporated | Packet transmission of speech |
-
1977
- 1977-03-15 GB GB10846/77A patent/GB1559897A/en not_active Expired
-
1978
- 1978-03-13 CA CA298,785A patent/CA1102021A/fr not_active Expired
- 1978-03-14 IT IT67558/78A patent/IT1107349B/it active
- 1978-03-14 NL NL7802777A patent/NL7802777A/xx not_active Application Discontinuation
- 1978-03-14 US US05/886,550 patent/US4229622A/en not_active Expired - Lifetime
- 1978-03-14 SE SE7802951A patent/SE427605B/sv unknown
- 1978-03-14 AU AU34121/78A patent/AU510818B2/en not_active Expired
- 1978-03-15 DE DE19782811293 patent/DE2811293A1/de not_active Withdrawn
- 1978-03-15 BE BE185969A patent/BE864936A/fr not_active IP Right Cessation
- 1978-03-15 JP JP2976878A patent/JPS53136911A/ja active Pending
- 1978-03-15 FR FR7807489A patent/FR2384392A1/fr active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0084125A2 (fr) * | 1982-01-15 | 1983-07-27 | International Business Machines Corporation | Appareil pour le multiplexage statistique efficace de signaux de parole et de données |
EP0084125A3 (en) * | 1982-01-15 | 1984-09-19 | International Business Machines Corporation | Apparatus for efficient statistical multiplexing of voice and data signals |
Also Published As
Publication number | Publication date |
---|---|
CA1102021A (fr) | 1981-05-26 |
JPS53136911A (en) | 1978-11-29 |
SE427605B (sv) | 1983-04-18 |
IT1107349B (it) | 1985-11-25 |
NL7802777A (nl) | 1978-09-19 |
BE864936A (fr) | 1978-07-03 |
IT7867558A0 (it) | 1978-03-14 |
DE2811293A1 (de) | 1978-11-02 |
US4229622A (en) | 1980-10-21 |
SE7802951L (sv) | 1978-09-16 |
GB1559897A (en) | 1980-01-30 |
FR2384392B1 (fr) | 1983-10-28 |
AU510818B2 (en) | 1980-07-17 |
AU3412178A (en) | 1979-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |