IT1112775B - Metodo ed apparato per la rivelazione del grado di variazione di un segnale - Google Patents

Metodo ed apparato per la rivelazione del grado di variazione di un segnale

Info

Publication number: IT1112775B
Authority: IT; Italy
Prior art keywords: detecting; signal variation; variation degree; degree; signal
Prior art date: 1978-05-01

Application number

IT22288/79A

Other languages

English (en)

Other versions

IT7922288A0 (it

Original Assignee

Anglo Amer Corp South Africa

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.)

1978-05-01

Filing date

1979-04-30

Publication date

1986-01-20

1979-04-30 Application filed by Anglo Amer Corp South Africa filed Critical Anglo Amer Corp South Africa

1979-04-30 Publication of IT7922288A0 publication Critical patent/IT7922288A0/it

1986-01-20 Application granted granted Critical

1986-01-20 Publication of IT1112775B publication Critical patent/IT1112775B/it

Classifications

- 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
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Fire-Detection Mechanisms (AREA)
Fire Alarms (AREA)
Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Emergency Alarm Devices (AREA)
Control Of Electric Motors In General (AREA)
Radar Systems Or Details Thereof (AREA)
Measuring Frequencies, Analyzing Spectra (AREA)
Manipulation Of Pulses (AREA)
Measurement Of Current Or Voltage (AREA)

IT22288/79A 1978-05-01 1979-04-30 Metodo ed apparato per la rivelazione del grado di variazione di un segnale IT1112775B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
ZA00782493A ZA782493B (en)	1978-05-01	1978-05-01	Rate of change detection

Publications (2)

Publication Number	Publication Date
IT7922288A0 IT7922288A0 (it)	1979-04-30
IT1112775B true IT1112775B (it)	1986-01-20

Family

ID=25572893

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT22288/79A IT1112775B (it)	1978-05-01	1979-04-30	Metodo ed apparato per la rivelazione del grado di variazione di un segnale

Country Status (19)

Country	Link
US (1)	US4309663A (it)
JP (1)	JPS5530794A (it)
AU (1)	AU524975B2 (it)
BE (1)	BE875952A (it)
BR (1)	BR7902684A (it)
CA (1)	CA1140219A (it)
CH (1)	CH648129A5 (it)
DE (1)	DE2917454A1 (it)
DK (1)	DK156780C (it)
FR (1)	FR2425076A1 (it)
GB (1)	GB2020042B (it)
IE (1)	IE48296B1 (it)
IN (1)	IN152221B (it)
IT (1)	IT1112775B (it)
LU (1)	LU81203A1 (it)
NL (1)	NL7903362A (it)
NO (1)	NO151514C (it)
SE (1)	SE439851B (it)
ZA (1)	ZA782493B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ZA785255B (en) *	1978-09-15	1979-12-27	Anglo Amer Corp South Africa	Alarm system
EP0021554B1 (en) *	1979-03-14	1983-06-22	LUCAS INDUSTRIES public limited company	Method and device for measurement of the rate of change of frequency of a pulse train
JPS57795A (en) *	1980-06-04	1982-01-05	Hitachi Ltd	Method of detecting and warning gas leakage
JPS5726227A (en) *	1980-07-22	1982-02-12	Nippon Denso Co Ltd	Abnormal alarm device
GB2085599B (en) *	1980-09-30	1984-09-19	Gould Advance Ltd	Automatic drift correction
DE3111684A1 (de) *	1981-03-25	1982-10-14	FHN-Verbindungstechnik GmbH, 8501 Eckental	"elektronische steuerschaltung fuer den antriebsmotor eines versenkbaren autofensters"
US4582672A (en) *	1982-08-11	1986-04-15	Westinghouse Electric Corp.	Method and apparatus for preventing inadvertent criticality in a nuclear fueled electric powering generating unit
JPS59172093A (ja) *	1983-03-21	1984-09-28	高橋　信夫	火災などの異常警報装置
JPS60135000A (ja) *	1983-12-23	1985-07-18	ホーチキ株式会社	火災報知装置
JPS60134999A (ja) *	1983-12-23	1985-07-18	ホーチキ株式会社	火災報知装置
JPS6219999A (ja) *	1985-07-18	1987-01-28	ホーチキ株式会社	火災報知装置
DE4116308A1 (de) *	1991-05-15	1992-11-19	Schleicher Relais	Vorrichtung zur intermittierenden messung einer messgroesse ueber laengere zeitraeume
US5461223A (en) *	1992-10-09	1995-10-24	Eastman Kodak Company	Bar code detecting circuitry
DE102005058574B4 (de) *	2005-12-08	2016-03-24	Hella Kgaa Hueck & Co.	Vorrichtung zum Steuern der Zusatzleistung einer Gasentladungslampe mit einem Oszillator, dessen Frequenz zum Ersetzen eines RC-Zeitgliedes geändert wird

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4132947A (en) *	1967-09-06	1979-01-02	General Electric Company	Waveshape detector
US3600688A (en) *	1970-04-21	1971-08-17	Bethlehem Steel Corp	Signal discriminator circuit
US3711779A (en) *	1970-11-17	1973-01-16	Instrumentation Specialties Co	Apparatus for determining and characterizing the slopes of time-varying signals
GB1406219A (en)	1971-11-17	1975-09-17	Molins Ltd	Devices for mean value indication
JPS5115886B2 (it) *	1972-05-18	1976-05-20
SE358736B (it)	1972-09-15	1973-08-06	Teleplan Ab
AU478432B2 (en) *	1972-12-01	1975-05-15	Wormald International Ltd.	Improvements in temperature monitoring equipment
FR2231972B1 (it) *	1973-05-29	1977-04-29	Electricite De France
DE2440309A1 (de) *	1973-08-24	1975-03-27	Anglo Amer Corp South Africa	Verfahren und vorrichtung zum aufspueren von braenden
AU481144B2 (en) *	1973-10-04	1977-02-21	Dulux Australia Ltd.	POLYMER BEAD PROCESS Specification
US3958132A (en) *	1974-04-25	1976-05-18	Sun Oil Company Of Pennsylvania	Slope change detector
DE2435084C3 (de) *	1974-07-22	1978-12-07	Fa. Carl Zeiss, 7920 Heidenheim	Anordnung zur zeitlichen Verfolgung eines Meßvorganges
DE2453013C2 (de) *	1974-11-08	1984-09-20	Hellige Gmbh, 7800 Freiburg	Medizinisches Gerät zur automatischen Überwachung der Temperatur des menschlichen Körpers
GB1527600A (en)	1974-12-13	1978-10-04	Mullard Ltd	Video signal analysis
JPS5230088A (en) *	1975-08-30	1977-03-07	Green Cross Corp	Device for detecting abnormal position of skin impedance
GB1478810A (en) *	1975-11-20	1977-07-06	Standard Telephones Cables Ltd	Detection circuits for monitoring current changes
US4041404A (en) *	1976-06-01	1977-08-09	Leeds & Northrup Company	Apparatus and method for detecting when a measured variable represented by a string of digital pulses reaches a plateau
US4086651A (en) *	1976-06-29	1978-04-25	The Perkin-Elmer Corporation	Electrical output peak detecting apparatus
FR2397640A1 (fr) *	1977-07-12	1979-02-09	Thomson Csf	Dispositif de mesure de la pente moyenne d'une courbe representative d'un phenomene en evolution

1978
- 1978-05-01 ZA ZA00782493A patent/ZA782493B/xx unknown
1979
- 1979-04-27 NL NL7903362A patent/NL7903362A/xx not_active Application Discontinuation
- 1979-04-27 SE SE7903750A patent/SE439851B/sv not_active IP Right Cessation
- 1979-04-27 NO NO79791419A patent/NO151514C/no unknown
- 1979-04-27 FR FR7910832A patent/FR2425076A1/fr active Granted
- 1979-04-30 AU AU46522/79A patent/AU524975B2/en not_active Ceased
- 1979-04-30 CA CA000326638A patent/CA1140219A/en not_active Expired
- 1979-04-30 US US06/034,809 patent/US4309663A/en not_active Expired - Lifetime
- 1979-04-30 LU LU81203A patent/LU81203A1/xx unknown
- 1979-04-30 IT IT22288/79A patent/IT1112775B/it active
- 1979-04-30 GB GB7914956A patent/GB2020042B/en not_active Expired
- 1979-04-30 CH CH4046/79A patent/CH648129A5/de not_active IP Right Cessation
- 1979-04-30 DE DE19792917454 patent/DE2917454A1/de not_active Ceased
- 1979-04-30 BE BE2/57768A patent/BE875952A/xx not_active IP Right Cessation
- 1979-04-30 DK DK177479A patent/DK156780C/da not_active IP Right Cessation
- 1979-05-01 JP JP5396379A patent/JPS5530794A/ja active Pending
- 1979-05-02 IN IN444/CAL/79A patent/IN152221B/en unknown
- 1979-05-02 BR BR7902684A patent/BR7902684A/pt unknown
- 1979-08-18 IE IE1213/79A patent/IE48296B1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK156780C (da)	1990-02-19
DE2917454A1 (de)	1979-11-08
GB2020042B (en)	1982-09-02
JPS5530794A (en)	1980-03-04
NO151514C (no)	1985-04-24
IE791213L (en)	1979-11-01
SE7903750L (sv)	1979-11-02
SE439851B (sv)	1985-07-01
DK177479A (da)	1979-11-02
US4309663A (en)	1982-01-05
BR7902684A (pt)	1979-11-27
GB2020042A (en)	1979-11-07
CA1140219A (en)	1983-01-25
ZA782493B (en)	1979-12-27
AU524975B2 (en)	1982-10-14
NL7903362A (nl)	1979-11-05
NO151514B (no)	1985-01-07
IN152221B (it)	1983-11-19
IT7922288A0 (it)	1979-04-30
FR2425076B1 (it)	1984-10-05
DK156780B (da)	1989-10-02
CH648129A5 (de)	1985-02-28
FR2425076A1 (fr)	1979-11-30
NO791419L (no)	1979-11-02
AU4652279A (en)	1979-11-08
BE875952A (nl)	1979-08-16
IE48296B1 (en)	1984-11-28
LU81203A1 (fr)	1979-09-10

Publication	Publication Date	Title
DK472382A (da)	1983-04-28	Moentsorteringsapparat
DK152405C (da)	1988-08-01	Fosterovervaagningsapparat
FR2428271B1 (fr)	1985-11-29	Appareil de detection de distance
IT7830044A0 (it)	1978-11-22	Apparecchio per rilevare ed elaborare segnali elettrici.
IT8224805A0 (it)	1982-12-16	Metodo e apparato per misura di giochi.
IT7919469A0 (it)	1979-01-19	Apparecchio per la valutazione di strisce di prova.
MX153519A (es)	1986-11-10	Mejoras en aparato de electrochapeado
DK174883D0 (da)	1983-04-21	Moenttilstedevaerelsesaffoelingsapparat
IT1112775B (it)	1986-01-20	Metodo ed apparato per la rivelazione del grado di variazione di un segnale
AR224758A1 (es)	1982-01-15	Metodo y aparato de perfilado de pozos
IT7920514A0 (it)	1979-02-23	Metodo ed apparato per la misura del modulo di perdita di materiali.
IT7831049A0 (it)	1978-12-20	Metodo ed apparato di ispezione mediante ultrasuoni.
DK157580C (da)	1990-07-02	Ultralyd-maaleapparat
IT1142050B (it)	1986-10-08	Apparecchiatura per rilevare e localizzare vibrazioni
IT8167210A0 (it)	1981-02-13	Apparecchio per disegno
DK144288C (da)	1982-07-05	Faldproeveapparat
DK572282A (da)	1983-06-25	Fladmembran-skilleapparat
BE862141R (fr)	1978-06-21	Appareil et procede de nettoyage hydrodynamique
DK238882A (da)	1982-12-25	Gennemstroemnings-maaleapparat
BE857369A (fr)	1978-02-01	Procede et appareil de separation
IT8321021A0 (it)	1983-05-10	Procedimento e dispositivo per rivelare variazioni di frequenza.
NO159420C (no)	1988-12-21	Fremgangsmaate og anordning for vaeskenivaamaaling.
IT7824948A0 (it)	1978-06-26	Apparecchio elettrico e sistema per la sua fabbricazione.
IT1146783B (it)	1986-11-19	Dispositivo per la cerinta del compost
IT1141875B (it)	1986-10-08	Procedimento ed apparecchio per la pulitura ad ultrasuoni