SE8404029L - BAND PASS FILTER FOR RECEIVING A OVER ELECTRIC ENERGY SUPPLY NETWORK TRANSFER TONSIGNAL - Google Patents

BAND PASS FILTER FOR RECEIVING A OVER ELECTRIC ENERGY SUPPLY NETWORK TRANSFER TONSIGNAL

Info

Publication number
SE8404029L
SE8404029L SE8404029A SE8404029A SE8404029L SE 8404029 L SE8404029 L SE 8404029L SE 8404029 A SE8404029 A SE 8404029A SE 8404029 A SE8404029 A SE 8404029A SE 8404029 L SE8404029 L SE 8404029L
Authority
SE
Sweden
Prior art keywords
filters
tonsignal
receiving
pass filter
electric energy
Prior art date
Application number
SE8404029A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE457133B (en
SE8404029D0 (en
Inventor
B Steinle
H Bosiger
Original Assignee
Landis & Gyr Ag
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 Landis & Gyr Ag filed Critical Landis & Gyr Ag
Publication of SE8404029D0 publication Critical patent/SE8404029D0/en
Publication of SE8404029L publication Critical patent/SE8404029L/en
Publication of SE457133B publication Critical patent/SE457133B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Networks Using Active Elements (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Filters And Equalizers (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

The digital part of the bandpass filter consists of the cascade circuit of several part-filters, all of which or a majority of which are second-order IIR filters (7, 8, 10), and contain an FIR filter (10) in one variant, and of an envelope detector (9). At least two of the IIR filters (7, 8) together form a detuning filter. The frequency ranges which are not, or not adequately, filtered out by the detuning filter are filtered out in two variants with the additional IIR and FIR filters. In addition, there is an analog prefilter which filters out the frequency range not yet filtered, nevertheless, and suppresses the mains frequency and strong harmonics of it to such an extent that an inexpensive analog/digital converter is adequate for the digitisation. <IMAGE>
SE8404029A 1983-08-11 1984-08-08 BAND PASS FILTER RECEIVES A TRANSFER ELECTRIC ENERGY SUPPLY TRANSFER TON SIGNAL SE457133B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4390/83A CH662683A5 (en) 1983-08-11 1983-08-11 BAND PASS FILTER FOR RECEIVING A TONE SIGNAL TRANSFERRED BY AN ELECTRICAL ENERGY SUPPLY NETWORK.

Publications (3)

Publication Number Publication Date
SE8404029D0 SE8404029D0 (en) 1984-08-08
SE8404029L true SE8404029L (en) 1985-02-12
SE457133B SE457133B (en) 1988-11-28

Family

ID=4275226

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8404029A SE457133B (en) 1983-08-11 1984-08-08 BAND PASS FILTER RECEIVES A TRANSFER ELECTRIC ENERGY SUPPLY TRANSFER TON SIGNAL

Country Status (9)

Country Link
AT (1) AT388264B (en)
BE (1) BE900326A (en)
CH (1) CH662683A5 (en)
DE (1) DE3418011A1 (en)
DK (1) DK163469C (en)
FR (1) FR2550669B1 (en)
NL (1) NL188877C (en)
NO (1) NO167619C (en)
SE (1) SE457133B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262755A (en) * 1991-12-17 1993-11-16 Distribution Control Systems, Inc. Inbound communications using electricity distribution network
DE4418296A1 (en) * 1994-05-26 1995-11-30 Abb Patent Gmbh Network connection for devices for data transmission via an electrical distribution network
DE19800718A1 (en) * 1998-01-12 1999-07-22 Abb Research Ltd Process for the transmission of digital data

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH559983A5 (en) * 1972-12-28 1975-03-14 Zellweger Uster Ag
DE2316436C2 (en) * 1973-04-02 1975-03-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Frequency filter with a filter circuit consisting of two parallel filter branches and controlled by a frequency generator
JPS5271960A (en) * 1975-12-11 1977-06-15 Fukuda Denshi Kk Realltime nonnphase filter using delay circuit
DE3047450C2 (en) * 1980-12-17 1985-07-11 ANT Nachrichtentechnik GmbH, 7150 Backnang Filter for changing the sampling frequency
CH662224A5 (en) * 1982-10-01 1987-09-15 Zellweger Uster Ag DIGITAL FILTER FOR REMOTE CONTROL RECEIVERS, ESPECIALLY FOR RADIO CONTROL RECEIVERS.

Also Published As

Publication number Publication date
NO843168L (en) 1985-02-12
DK163469C (en) 1992-07-20
ATA239784A (en) 1988-10-15
NL8402465A (en) 1985-03-01
NL188877B (en) 1992-05-18
DK384484A (en) 1985-02-12
NO167619C (en) 1991-11-20
SE457133B (en) 1988-11-28
AT388264B (en) 1989-05-26
FR2550669B1 (en) 1989-12-22
DK384484D0 (en) 1984-08-09
DK163469B (en) 1992-03-02
FR2550669A1 (en) 1985-02-15
NO167619B (en) 1991-08-12
DE3418011C2 (en) 1988-12-15
DE3418011A1 (en) 1985-02-28
CH662683A5 (en) 1987-10-15
NL188877C (en) 1992-10-16
SE8404029D0 (en) 1984-08-08
BE900326A (en) 1984-12-03

Similar Documents

Publication Publication Date Title
GB8302659D0 (en) Acoustic surface-wave bandpass filter
DE3684529D1 (en) RADIO CONTROL RECEIVER.
DE3474622D1 (en) Band-rejection filter of the switched capacitor type
ES477759A1 (en) Gas detector
DE69120370D1 (en) Amplitude corrector of filters tuned by field-coupled varactors
DE3374628D1 (en) Resonator type bandpass filter
GB2105940B (en) Iir digital filter having low coeffecient sensitivity
SE8404029L (en) BAND PASS FILTER FOR RECEIVING A OVER ELECTRIC ENERGY SUPPLY NETWORK TRANSFER TONSIGNAL
EP0479201A3 (en) Variable band-pass filter circuit
DE69122981D1 (en) Filters for changing the sampling frequency
GB8409212D0 (en) Gas filter canister housing assembly
DE3067096D1 (en) Pass filter circuit arrangement
GB2128437B (en) Digital filters for remote control receivers
DE3465401D1 (en) Digital wave filter with bridged digital wave filters
DE3379931D1 (en) Switched capacitor filter circuit
DE3363933D1 (en) Switched capacitor filter
GB2118793B (en) Receiver having switched capacitor filter
DE3378345D1 (en) Piezo-electric resonator or filter
JPS5612821A (en) Harmonic wave switching filter
JPS55102919A (en) Low pass filter circuit capable of integrating monolithically
DE3470983D1 (en) Miniature uhf filter having resonant choke circuits coupled by capacitors
DE3380659D1 (en) Combined phase detector and low pass filter
JPS55134529A (en) Monolithic integrated filter circuit
JPS5598820A (en) Harmonic wave filter
ES275785Y (en) MANUAL DUST VACUUM FILTER BASKET

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8404029-4

Format of ref document f/p: F

NUG Patent has lapsed