DK144548C - Signalspidsvaerdidetektor,isaer til ekkoundertrykkelseskobling - Google Patents

Signalspidsvaerdidetektor,isaer til ekkoundertrykkelseskobling

Info

Publication number: DK144548C
Authority: DK; Denmark
Prior art keywords: economic; essential; speed value; value detector; signal speed
Prior art date: 1975-03-20

Application number

DK122576A

Other languages

English (en)

Other versions

DK144548B (da

DK122576A (da

Inventor

J-M Durand

E Penicaud

Original Assignee

Cit Alcatel

Priority date (The priority date 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 date listed.)

1975-03-20

Filing date

1976-03-19

Publication date

1982-09-06

1976-03-19 Application filed by Cit Alcatel filed Critical Cit Alcatel

1976-09-21 Publication of DK122576A publication Critical patent/DK122576A/da

1982-03-22 Publication of DK144548B publication Critical patent/DK144548B/da

1982-09-06 Application granted granted Critical

1982-09-06 Publication of DK144548C publication Critical patent/DK144548C/da

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
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
- G01D1/12—Measuring arrangements giving results other than momentary value of variable, of general application giving a maximum or minimum of a value
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/04—Measuring peak values or amplitude or envelope of AC or of pulses
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
- 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
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/448—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency with conversion of a single frequency signal into a digital signal

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Power Engineering (AREA)
Analogue/Digital Conversion (AREA)
Measurement Of Current Or Voltage (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Monitoring And Testing Of Transmission In General (AREA)
Control Of Amplification And Gain Control (AREA)

DK122576A 1975-03-20 1976-03-19 Signalspidsvaerdidetektor,isaer til ekkoundertrykkelseskobling DK144548C (da)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR7508763		1975-03-20
FR7508763A FR2304899A1 (fr)	1975-03-20	1975-03-20	Detecteur de crete d'une variable

Publications (3)

Publication Number	Publication Date
DK122576A DK122576A (da)	1976-09-21
DK144548B DK144548B (da)	1982-03-22
DK144548C true DK144548C (da)	1982-09-06

Family

ID=9152843

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK122576A DK144548C (da)	1975-03-20	1976-03-19	Signalspidsvaerdidetektor,isaer til ekkoundertrykkelseskobling

Country Status (11)

Country	Link
JP (1)	JPS51117671A (da)
BE (1)	BE839223A (da)
DE (1)	DE2610834A1 (da)
DK (1)	DK144548C (da)
FR (1)	FR2304899A1 (da)
GB (1)	GB1499635A (da)
IE (1)	IE42518B1 (da)
IT (1)	IT1058424B (da)
LU (1)	LU74516A1 (da)
NL (1)	NL7602866A (da)
SE (1)	SE408844B (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4156280A (en) *	1976-12-17	1979-05-22	International Business Machines Corporation	Utility monitor for detecting and storing power line disturbances
CA1130920A (en) *	1979-03-05	1982-08-31	William G. Crouse	Speech detector with variable threshold
FR2451680A1 (fr) *	1979-03-12	1980-10-10	Soumagne Joel	Discriminateur parole/silence pour interpolation de la parole
HU179871B (en) *	1980-06-05	1982-12-28	Mueszeripari Kutato Intezet	Apparatus for searching extreme value of and noise compensation at the procession of sampled signals
FR2543304B1 (fr) *	1983-03-22	1985-07-12	Soletanche	Procede et dispositif pour obtenir la valeur de crete d'un signal et application a un procede et un dispositif pour determiner la durete d'un sol
DE3678576D1 (de) *	1986-07-15	1991-05-08	Ibm	Verfahren und einrichtung zum echoschutz in einem modem.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3543156A (en) *	1967-11-03	1970-11-24	Us Army	Automatic digital pulse analyzer
US3593334A (en) *	1968-11-29	1971-07-13	Burroughs Corp	Pulse discrimination system
DE2006491A1 (de) *	1970-02-13	1971-08-26	Losenhausen Testomax Gmbh	Spitzenwertberechner

1975
- 1975-03-20 FR FR7508763A patent/FR2304899A1/fr active Granted
1976
- 1976-03-05 BE BE1007231A patent/BE839223A/xx unknown
- 1976-03-10 LU LU74516A patent/LU74516A1/xx unknown
- 1976-03-15 DE DE19762610834 patent/DE2610834A1/de not_active Withdrawn
- 1976-03-15 JP JP51027221A patent/JPS51117671A/ja active Pending
- 1976-03-16 IT IT21242/76A patent/IT1058424B/it active
- 1976-03-17 SE SE7603353A patent/SE408844B/xx unknown
- 1976-03-18 NL NL7602866A patent/NL7602866A/xx not_active Application Discontinuation
- 1976-03-19 IE IE583/76A patent/IE42518B1/en unknown
- 1976-03-19 DK DK122576A patent/DK144548C/da active
- 1976-03-22 GB GB11376/76A patent/GB1499635A/en not_active Expired

Also Published As

Publication number	Publication date
NL7602866A (nl)	1976-09-22
SE408844B (sv)	1979-07-09
FR2304899A1 (fr)	1976-10-15
LU74516A1 (da)	1977-01-11
FR2304899B1 (da)	1977-11-18
SE7603353L (sv)	1976-09-21
IE42518L (en)	1976-09-20
JPS51117671A (en)	1976-10-15
IT1058424B (it)	1982-04-10
DE2610834A1 (de)	1976-09-30
GB1499635A (en)	1978-02-01
BE839223A (fr)	1976-09-06
DK144548B (da)	1982-03-22
DK122576A (da)	1976-09-21
IE42518B1 (en)	1980-08-27

Publication	Publication Date	Title
NL7512157A (nl)	1976-05-20	Signaalafneem-stelsel.
NL7607515A (nl)	1977-01-11	Keten voor signaalcompressie of -expansie.
NL7501297A (nl)	1975-08-07	Detector.
NL7605415A (nl)	1976-11-23	Scintillatiedetector.
SE7505997L (sv)	1975-12-29	Cykelsignalsystem.
GB1556707A (en)	1979-11-28	Change detecting system
NL7607698A (nl)	1977-01-19	Signaal verwerkende eenheid.
NL7508151A (nl)	1976-01-13	Detector.
NL181389C (nl)	1987-08-03	Signaalvereffenaar.
IT1034890B (it)	1979-10-10	Rivelatore per segnali vocali codificati
NL7613669A (nl)	1977-06-14	Signaalbemonsteringsstelsel.
NL7506411A (nl)	1976-12-02	Signaaluitvalkompensatie-inrichting.
DE2559484A1 (de)	1977-04-07	Signalunterbrechungsschaltung
NL186122C (nl)	1990-09-17	Roentgendetector.
NL7608483A (nl)	1977-02-03	Band-compressiestelsel.
NL7606920A (nl)	1976-12-28	Videosignaalomzetstelsel.
NL174589C (nl)	1984-07-02	Signaalindicatie-inrichting.
NO147004C (no)	1983-01-12	Trykkmaaler.
SE396820B (sv)	1977-10-03	Detektorkrets
IT1027957B (it)	1978-12-20	Fonorivelatore
DK144548C (da)	1982-09-06	Signalspidsvaerdidetektor,isaer til ekkoundertrykkelseskobling
NL7513569A (nl)	1976-05-25	Scheidingswerkwijze.
SE7601242L (sv)	1976-08-09	Detektorenhet
NL7600113A (nl)	1976-07-12	Toonfrequente detectie-inrichting.
NL7514285A (nl)	1976-07-26	Detectiesysteem.