SE408844B - DETECTOR FOR DETECTING A VARIABLE SIGNAL LEVEL - Google Patents

DETECTOR FOR DETECTING A VARIABLE SIGNAL LEVEL

Info

Publication number: SE408844B
Authority: SE; Sweden
Prior art keywords: detector; detecting; signal level; variable signal; variable
Prior art date: 1975-03-20

Application number

SE7603353A

Other languages

Swedish (sv)

Other versions

SE7603353L (en

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

1976-03-17

Publication date

1979-07-09

1976-03-17 Application filed by Cit Alcatel filed Critical Cit Alcatel

1976-09-21 Publication of SE7603353L publication Critical patent/SE7603353L/en

1979-07-09 Publication of SE408844B publication Critical patent/SE408844B/en

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)

SE7603353A 1975-03-20 1976-03-17 DETECTOR FOR DETECTING A VARIABLE SIGNAL LEVEL SE408844B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7508763A FR2304899A1 (en)	1975-03-20	1975-03-20	PEAK DETECTOR OF A VARIABLE

Publications (2)

Publication Number	Publication Date
SE7603353L SE7603353L (en)	1976-09-21
SE408844B true SE408844B (en)	1979-07-09

Family

ID=9152843

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7603353A SE408844B (en)	1975-03-20	1976-03-17	DETECTOR FOR DETECTING A VARIABLE SIGNAL LEVEL

Country Status (11)

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

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 (en) *	1979-03-12	1980-10-10	Soumagne Joel	SPEECH / SILENCE DISCRIMINATOR FOR SPEECH INTERPOLATION
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 (en) *	1983-03-22	1985-07-12	Soletanche	METHOD AND DEVICE FOR OBTAINING THE PEAK VALUE OF A SIGNAL AND APPLICATION TO A METHOD AND DEVICE FOR DETERMINING THE HARDNESS OF A SOIL
DE3678576D1 (en) *	1986-07-15	1991-05-08	Ibm	METHOD AND DEVICE FOR PROTECTING ECHOS IN A 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 (en) *	1970-02-13	1971-08-26	Losenhausen Testomax Gmbh	Peak value calculator

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- 1976-03-15 DE DE19762610834 patent/DE2610834A1/en not_active Withdrawn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

Also Published As

Publication number	Publication date
NL7602866A (en)	1976-09-22
FR2304899A1 (en)	1976-10-15
LU74516A1 (en)	1977-01-11
FR2304899B1 (en)	1977-11-18
SE7603353L (en)	1976-09-21
DK144548C (en)	1982-09-06
IE42518L (en)	1976-09-20
JPS51117671A (en)	1976-10-15
IT1058424B (en)	1982-04-10
DE2610834A1 (en)	1976-09-30
GB1499635A (en)	1978-02-01
BE839223A (en)	1976-09-06
DK144548B (en)	1982-03-22
DK122576A (en)	1976-09-21
IE42518B1 (en)	1980-08-27

Publication	Publication Date	Title
SE424138B (en)	1982-07-05	Hjert signal detector
JPS5257765A (en)	1977-05-12	Differential phase modulated signal detecting device
SE7604766L (en)	1976-11-20	SIGNAL MONITORING DEVICE
SE7704964L (en)	1977-10-31	SIGNAL DETECTOR
GB1557831A (en)	1979-12-12	Cross correlation arragement for detecting a tone signal
JPS5295935A (en)	1977-08-12	Amplifier circuit for detecting signal
JPS5332604A (en)	1978-03-28	Circuit for detecting receiving signal
SE7806755L (en)	1978-12-15	METHODS AND DEVICE FOR MONITORING ERRORAL SIGNAL SIGNALS
SE7703451L (en)	1977-10-01	DEVICE FOR DETECTING LARGE SIGNALS
SE7801410L (en)	1978-08-10	DEVICE FOR DISCRIMINATION OF NUMBER SIGNALS
SE7714181L (en)	1978-06-18	DETECTION OF TELEPHONE SIGNALS
SE7604780L (en)	1976-11-03	DEVICE FOR GENERATING A SIGNAL FREQUENCY SIGNAL OR DETECTING A DETERMINED FREQUENCY SIGNAL
FR2443783B1 (en)	1986-10-03	MULTI-FREQUENCY SIGNAL DETECTOR
SE408844B (en)	1979-07-09	DETECTOR FOR DETECTING A VARIABLE SIGNAL LEVEL
SE397589B (en)	1977-11-07	CIRCUIT FOR DETECTING A TOP FOR AN INPUT SIGNAL
SE7809876L (en)	1979-03-22	SIGNAL DETECTION DEVICE
SE7809877L (en)	1979-03-22	SIGNAL DETECTION DEVICE
JPS5254359A (en)	1977-05-02	Signal shift detector
SE397247B (en)	1977-10-24	CIRCUIT DEVICE FOR DETECTING DIAMINER CONTROL SIGNALS
IT1110356B (en)	1985-12-23	NARROW BAND LEVEL DETECTOR SUITABLE FOR DETECTING A PERIODIC SIGNAL
SE388100B (en)	1976-09-20	DEVICE FOR DETECTING A TONE SIGNAL WITH DETERMINED FREQUENCY
JPS5485621A (en)	1979-07-07	Signal sound phase displacement detector
JPS5313455A (en)	1978-02-07	Detector for cyclic signal
SE409252B (en)	1979-08-06	SIGNAL PICKUP CARTRIDGE
JPS52123645A (en)	1977-10-18	Position signal detecting device