IN152773B - - Google Patents
Info
- Publication number
- IN152773B IN152773B IN1432/CAL/81A IN1432CA1981A IN152773B IN 152773 B IN152773 B IN 152773B IN 1432CA1981 A IN1432CA1981 A IN 1432CA1981A IN 152773 B IN152773 B IN 152773B
- Authority
- IN
- India
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
- H04J3/175—Speech activity or inactivity detectors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- H03H17/0614—Non-recursive filters using Delta-modulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Time-Division Multiplex Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67251/81A IT1144551B (it) | 1981-02-24 | 1981-02-24 | Dispositivo numerico per la discriminazione di segnali vocali e segnali dati entrambi numerizzati |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN152773B true IN152773B (it) | 1984-03-31 |
Family
ID=11300846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1432/CAL/81A IN152773B (it) | 1981-02-24 | 1981-12-18 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4457013A (it) |
| EP (1) | EP0058982B1 (it) |
| JP (1) | JPS57155854A (it) |
| BR (1) | BR8200803A (it) |
| CA (1) | CA1163686A (it) |
| DE (2) | DE3261659D1 (it) |
| DK (1) | DK56282A (it) |
| ES (1) | ES8303856A1 (it) |
| IN (1) | IN152773B (it) |
| IT (1) | IT1144551B (it) |
| MX (1) | MX151046A (it) |
| NO (1) | NO152530C (it) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3270212D1 (en) * | 1982-04-30 | 1986-05-07 | Ibm | Digital coding method and device for carrying out the method |
| US4771425A (en) * | 1984-10-29 | 1988-09-13 | Stratacom, Inc. | Synchoronous packet voice/data communication system |
| US4903261A (en) * | 1984-10-29 | 1990-02-20 | Stratacom, Inc. | Synchronous packet voice/data communication system |
| US4912765A (en) * | 1988-09-28 | 1990-03-27 | Communications Satellite Corporation | Voice band data rate detector |
| FR2643523A1 (fr) * | 1989-02-22 | 1990-08-24 | Applic Electro Tech Avance | Discriminateur pour transmissions numeriques |
| US5105464A (en) * | 1989-05-18 | 1992-04-14 | General Electric Company | Means for improving the speech quality in multi-pulse excited linear predictive coding |
| US5060269A (en) * | 1989-05-18 | 1991-10-22 | General Electric Company | Hybrid switched multi-pulse/stochastic speech coding technique |
| CA1290868C (en) * | 1989-09-28 | 1991-10-15 | Maurizio Cecarelli | Voice data discriminator |
| EP0435458B1 (en) * | 1989-11-28 | 1995-02-01 | Nec Corporation | Speech/voiceband data discriminator |
| JPH04208742A (ja) * | 1990-12-04 | 1992-07-30 | Canon Inc | 通話レベル調整装置 |
| DE4243635C2 (de) * | 1992-12-22 | 1994-10-06 | Siemens Nixdorf Inf Syst | Überwachung von Fernsprech-Datenverbindungen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708746A (en) * | 1971-11-08 | 1973-01-02 | Univ Iowa State Res Found Inc | System for spectrum analysis including digital filter with variable sampling rate |
| FR2321219A1 (fr) * | 1975-08-14 | 1977-03-11 | Cit Alcatel | Discriminateur de signaux vocaux et de signaux numeriques |
| JPS5523603A (en) * | 1978-06-22 | 1980-02-20 | Nec Corp | Method and apparatus for coding and decoding of telephone signal |
| US4303803A (en) * | 1978-08-31 | 1981-12-01 | Kokusai Denshin Denwa Co., Ltd. | Digital speech interpolation system |
-
1981
- 1981-02-24 IT IT67251/81A patent/IT1144551B/it active
- 1981-12-18 IN IN1432/CAL/81A patent/IN152773B/en unknown
-
1982
- 1982-02-09 MX MX191325A patent/MX151046A/es unknown
- 1982-02-10 ES ES509486A patent/ES8303856A1/es not_active Expired
- 1982-02-10 DK DK56282A patent/DK56282A/da not_active Application Discontinuation
- 1982-02-12 JP JP57019863A patent/JPS57155854A/ja active Pending
- 1982-02-15 BR BR8200803A patent/BR8200803A/pt unknown
- 1982-02-22 DE DE8282101340T patent/DE3261659D1/de not_active Expired
- 1982-02-22 DE DE198282101340T patent/DE58982T1/de active Pending
- 1982-02-22 EP EP82101340A patent/EP0058982B1/en not_active Expired
- 1982-02-23 US US06/351,538 patent/US4457013A/en not_active Expired - Fee Related
- 1982-02-23 CA CA000396857A patent/CA1163686A/en not_active Expired
- 1982-02-23 NO NO820556A patent/NO152530C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO152530B (no) | 1985-07-01 |
| IT8167251A0 (it) | 1981-02-24 |
| IT1144551B (it) | 1986-10-29 |
| ES509486A0 (es) | 1983-02-01 |
| BR8200803A (pt) | 1982-12-21 |
| EP0058982A1 (en) | 1982-09-01 |
| US4457013A (en) | 1984-06-26 |
| DE58982T1 (de) | 1983-03-03 |
| JPS57155854A (en) | 1982-09-27 |
| ES8303856A1 (es) | 1983-02-01 |
| EP0058982B1 (en) | 1984-12-27 |
| CA1163686A (en) | 1984-03-13 |
| NO820556L (no) | 1982-08-25 |
| DE3261659D1 (en) | 1985-02-07 |
| MX151046A (es) | 1984-09-17 |
| NO152530C (no) | 1985-10-09 |
| DK56282A (da) | 1982-08-25 |