SE365922B - - Google Patents
Info
- Publication number
- SE365922B SE365922B SE09583/70A SE958370A SE365922B SE 365922 B SE365922 B SE 365922B SE 09583/70 A SE09583/70 A SE 09583/70A SE 958370 A SE958370 A SE 958370A SE 365922 B SE365922 B SE 365922B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/212—Time-division multiple access [TDMA]
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Time-Division Multiplex Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84152869A | 1969-07-14 | 1969-07-14 | |
US1918470A | 1970-03-13 | 1970-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE365922B true SE365922B (xx) | 1974-04-01 |
Family
ID=26691957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE09583/70A SE365922B (xx) | 1969-07-14 | 1970-07-10 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3712959A (xx) |
JP (1) | JPS5250483B1 (xx) |
DE (1) | DE2034623C2 (xx) |
FR (1) | FR2060544A5 (xx) |
GB (1) | GB1305819A (xx) |
NL (1) | NL173340C (xx) |
SE (1) | SE365922B (xx) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE786256A (fr) * | 1971-07-15 | 1973-01-15 | Philips Nv | Dispositif de commutation commande par des signaux |
FR2157143A5 (xx) * | 1971-10-19 | 1973-06-01 | Queffeulou Jean Yves | |
US3864520A (en) * | 1972-07-25 | 1975-02-04 | Ford Ind Inc | Signal monitoring control apparatus |
US3825694A (en) * | 1972-10-30 | 1974-07-23 | Cit Alcatel | Conversation detector for a telephonic channel concentrator |
US3832491A (en) * | 1973-02-13 | 1974-08-27 | Communications Satellite Corp | Digital voice switch with an adaptive digitally-controlled threshold |
US3832493A (en) * | 1973-06-18 | 1974-08-27 | Itt | Digital speech detector |
US3890467A (en) * | 1973-11-01 | 1975-06-17 | Communications Satellite Corp | Digital voice switch for use with delta modulation |
US3882458A (en) * | 1974-03-27 | 1975-05-06 | Gen Electric | Voice operated switch including apparatus for establishing a variable threshold noise level |
IT1014614B (it) * | 1974-04-24 | 1977-04-30 | Sits Soc It Telecom Siemens | Circuito per rivelare la presenza di attivita in banda fonica in una giunzione telefonica |
JPS5154703A (xx) * | 1974-11-08 | 1976-05-14 | Oki Electric Ind Co Ltd | |
IT1044353B (it) * | 1975-07-03 | 1980-03-20 | Telettra Lab Telefon | Metodo e dispositivo per il rico noscimento della presenza e.o assenza di segnale utile parola parlato su linee foniche canali fonici |
US4052568A (en) * | 1976-04-23 | 1977-10-04 | Communications Satellite Corporation | Digital voice switch |
US4028496A (en) * | 1976-08-17 | 1977-06-07 | Bell Telephone Laboratories, Incorporated | Digital speech detector |
DE2649259C2 (de) * | 1976-10-29 | 1983-06-09 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Verfahren zum automatischen Erkennen von gestörter Telefonsprache |
US4130739A (en) * | 1977-06-09 | 1978-12-19 | International Business Machines Corporation | Circuitry for compression of silence in dictation speech recording |
US4323730A (en) * | 1979-06-13 | 1982-04-06 | Northern Telecom Limited | Idle channel noise suppressor for speech encoders |
FR2466825A1 (fr) * | 1979-09-28 | 1981-04-10 | Thomson Csf | Dispositif de detection de signaux vocaux et systeme d'alternat comportant un tel dispositif |
CA1147071A (en) * | 1980-09-09 | 1983-05-24 | Northern Telecom Limited | Method of and apparatus for detecting speech in a voice channel signal |
US4357491A (en) * | 1980-09-16 | 1982-11-02 | Northern Telecom Limited | Method of and apparatus for detecting speech in a voice channel signal |
US4573188A (en) * | 1982-06-10 | 1986-02-25 | The Aerospace Corporation | Digital to analog converter |
US4499594A (en) * | 1982-06-10 | 1985-02-12 | The Aerospace Corporation | Digital to analog converter |
JPH07113840B2 (ja) * | 1989-06-29 | 1995-12-06 | 三菱電機株式会社 | 音声検出器 |
JP2908168B2 (ja) * | 1993-03-15 | 1999-06-21 | シャープ株式会社 | 信号識別回路 |
JPH0990974A (ja) * | 1995-09-25 | 1997-04-04 | Nippon Telegr & Teleph Corp <Ntt> | 信号処理方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3369080A (en) * | 1964-12-16 | 1968-02-13 | Bell Telephone Labor Inc | Conference circuit for coded signals permitting conference calls between vocoder and analogue stations |
US3424869A (en) * | 1965-06-15 | 1969-01-28 | Bell Telephone Labor Inc | Digital speech interpolation communication system |
-
1970
- 1970-03-13 US US00019184A patent/US3712959A/en not_active Expired - Lifetime
- 1970-07-10 SE SE09583/70A patent/SE365922B/xx unknown
- 1970-07-10 FR FR7025858A patent/FR2060544A5/fr not_active Expired
- 1970-07-13 DE DE2034623A patent/DE2034623C2/de not_active Expired
- 1970-07-13 GB GB3388270A patent/GB1305819A/en not_active Expired
- 1970-07-14 JP JP45061098A patent/JPS5250483B1/ja active Pending
- 1970-07-14 NL NLAANVRAGE7010412,A patent/NL173340C/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL173340C (nl) | 1984-01-02 |
US3712959A (en) | 1973-01-23 |
NL173340B (nl) | 1983-08-01 |
FR2060544A5 (xx) | 1971-06-18 |
GB1305819A (xx) | 1973-02-07 |
JPS5250483B1 (xx) | 1977-12-24 |
DE2034623C2 (de) | 1982-12-09 |
NL7010412A (xx) | 1971-01-18 |
DE2034623A1 (de) | 1971-04-08 |