DE69008917D1 - Einrichtungen mit Frequenzumtastung für Stromschleife. - Google Patents

Einrichtungen mit Frequenzumtastung für Stromschleife.

Info

Publication number
DE69008917D1
DE69008917D1 DE69008917T DE69008917T DE69008917D1 DE 69008917 D1 DE69008917 D1 DE 69008917D1 DE 69008917 T DE69008917 T DE 69008917T DE 69008917 T DE69008917 T DE 69008917T DE 69008917 D1 DE69008917 D1 DE 69008917D1
Authority
DE
Germany
Prior art keywords
frequency shift
shift keying
current loops
keying devices
devices
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69008917T
Other languages
English (en)
Other versions
DE69008917T2 (de
Inventor
Edward Bastijanic
Joseph C Nemer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INT CONTROL AUTOMATION FINANCE
Original Assignee
INT CONTROL AUTOMATION FINANCE
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.)
Filing date
Publication date
Application filed by INT CONTROL AUTOMATION FINANCE filed Critical INT CONTROL AUTOMATION FINANCE
Application granted granted Critical
Publication of DE69008917D1 publication Critical patent/DE69008917D1/de
Publication of DE69008917T2 publication Critical patent/DE69008917T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Near-Field Transmission Systems (AREA)
  • Alarm Systems (AREA)
DE1990608917 1989-04-12 1990-01-15 Einrichtungen mit Frequenzumtastung für Stromschleife. Expired - Fee Related DE69008917T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33700689A 1989-04-12 1989-04-12

Publications (2)

Publication Number Publication Date
DE69008917D1 true DE69008917D1 (de) 1994-06-23
DE69008917T2 DE69008917T2 (de) 1994-09-01

Family

ID=23318695

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990608917 Expired - Fee Related DE69008917T2 (de) 1989-04-12 1990-01-15 Einrichtungen mit Frequenzumtastung für Stromschleife.

Country Status (7)

Country Link
EP (1) EP0392647B1 (de)
JP (1) JPH02295258A (de)
CN (1) CN1021182C (de)
AU (1) AU628154B2 (de)
CA (1) CA2013866A1 (de)
DE (1) DE69008917T2 (de)
NO (1) NO303259B1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487874B1 (de) * 1990-11-30 2000-07-26 Yokogawa Electric Corporation Signalgestalter
US5543447A (en) * 1994-09-28 1996-08-06 Southwest Research Institute Stabilization of red amorphous phosphorus by ordered polymeric structures for the manufacture of non-emissive fire retardant plastics
DE29718405U1 (de) * 1997-10-16 1998-11-12 Siemens Ag Analogeingabeeinheit
DE19813700C2 (de) * 1998-03-27 2003-03-27 Samson Ag Eingangsschaltung für ein Feldgerät
IL125855A (en) * 1998-04-06 2007-06-03 Technion R & D Foundation Ltd Method for the production of foamed ceramic materials
CN100336780C (zh) * 2006-02-20 2007-09-12 河南科技大学 一种铸造用泡沫陶瓷过滤器的制备方法
CN101043489B (zh) * 2006-03-22 2012-07-04 普诚科技股份有限公司 频移键控解调电路、频率调制解调电路及其方法
US8459525B2 (en) 2008-02-14 2013-06-11 Ethicon Endo-Sugery, Inc. Motorized surgical cutting and fastening instrument having a magnetic drive train torque limiting device
DE102012218429A1 (de) 2012-10-10 2014-04-10 Zumtobel Lighting Gmbh System zur Funktionsüberwachung einer Stromschleife
CN104202076A (zh) * 2014-08-21 2014-12-10 常州工学院 一种fsk中继器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752923A (en) * 1971-12-09 1973-08-14 Honeywell Inf Systems Frequency shift keyed generating system
CH610167A5 (en) * 1976-02-26 1979-03-30 Vogelsang Remo Data transmission system with stations connected to a common transmission line
US4091361A (en) * 1976-12-09 1978-05-23 General Electric Company Noise-immune carrier current actuated control
JPS5493953A (en) * 1978-01-07 1979-07-25 Nec Corp Frequency shift modulator circuit
JPS5827452A (ja) * 1981-08-11 1983-02-18 Mitsubishi Electric Corp Ｆｓｋ信号復調器
JPS6174425A (ja) * 1984-09-20 1986-04-16 Matsushita Electric Ind Co Ltd 電力線搬送送受信ネツトワ−クシステム
US4606049A (en) * 1984-12-03 1986-08-12 The United States Of America As Represented By The Secretary Of The Navy Remote transmitter control system
DE3632840A1 (de) * 1986-09-26 1988-04-07 Endress Hauser Gmbh Co Verfahren und anordnung zur uebertragung binaer codierter informationen in einer messanordnung
JPS648046U (de) * 1987-07-02 1989-01-17

Also Published As

Publication number Publication date
NO303259B1 (no) 1998-06-15
EP0392647A2 (de) 1990-10-17
AU5317090A (en) 1990-10-18
EP0392647A3 (de) 1991-01-09
EP0392647B1 (de) 1994-05-18
DE69008917T2 (de) 1994-09-01
NO900046L (no) 1990-10-15
NO900046D0 (no) 1990-01-05
CA2013866A1 (en) 1990-10-12
AU628154B2 (en) 1992-09-10
JPH02295258A (ja) 1990-12-06
CN1046424A (zh) 1990-10-24
CN1021182C (zh) 1993-06-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee