IT8423834A1 - Apparecchiatura per correggere nella trasmissione di segnali l'attenuazione dipendente dalla frequenza del mezzo di trasmissione - Google Patents

Apparecchiatura per correggere nella trasmissione di segnali l'attenuazione dipendente dalla frequenza del mezzo di trasmissione

Info

Publication number
IT8423834A1
IT8423834A1 IT1984A23834A IT2383484A IT8423834A1 IT 8423834 A1 IT8423834 A1 IT 8423834A1 IT 1984A23834 A IT1984A23834 A IT 1984A23834A IT 2383484 A IT2383484 A IT 2383484A IT 8423834 A1 IT8423834 A1 IT 8423834A1
Authority
IT
Italy
Prior art keywords
signals
frequency
pct
filter
transmission
Prior art date
Application number
IT1984A23834A
Other languages
English (en)
Other versions
IT8423834A0 (it
IT1178662B (it
Original Assignee
Telefonartiebolaget Lm Ericsson
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 Telefonartiebolaget Lm Ericsson filed Critical Telefonartiebolaget Lm Ericsson
Publication of IT8423834A0 publication Critical patent/IT8423834A0/it
Publication of IT8423834A1 publication Critical patent/IT8423834A1/it
Application granted granted Critical
Publication of IT1178662B publication Critical patent/IT1178662B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • 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
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physics & Mathematics (AREA)
  • Networks Using Active Elements (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters And Equalizers (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Dc Digital Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Control Of Electric Motors In General (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
IT23834/84A 1983-12-02 1984-11-30 Apparecchiatura per correggere nella trasmissione di segnali l'attenuazione dipentente dalla frequenza del mezzo di trasmissione IT1178662B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8306671A SE440301B (sv) 1983-12-02 1983-12-02 Anordning for att vid signaloverforing korrigera for frekvensberoende dempning hos overforingsmediet

Publications (3)

Publication Number Publication Date
IT8423834A0 IT8423834A0 (it) 1984-11-30
IT8423834A1 true IT8423834A1 (it) 1986-05-30
IT1178662B IT1178662B (it) 1987-09-16

Family

ID=20353566

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23834/84A IT1178662B (it) 1983-12-02 1984-11-30 Apparecchiatura per correggere nella trasmissione di segnali l'attenuazione dipentente dalla frequenza del mezzo di trasmissione

Country Status (21)

Country Link
US (1) US4639935A (it)
EP (1) EP0163685B1 (it)
JP (1) JPS61500582A (it)
KR (1) KR900004408B1 (it)
AT (1) ATE33912T1 (it)
AU (1) AU567986B2 (it)
BR (1) BR8407204A (it)
CA (1) CA1211799A (it)
DE (1) DE3470824D1 (it)
DK (1) DK351085D0 (it)
ES (1) ES8602315A1 (it)
FI (1) FI852434A0 (it)
GR (1) GR80984B (it)
IT (1) IT1178662B (it)
MX (1) MX156566A (it)
NO (1) NO163259C (it)
NZ (1) NZ210055A (it)
PT (1) PT79439B (it)
SE (1) SE440301B (it)
WO (1) WO1985002509A1 (it)
YU (1) YU201484A (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607987B1 (fr) * 1986-12-05 1989-02-10 Thomson Csf Procede et dispositif de modulation et de demodulation a plusieurs etats, a niveau de protection ajustable
US7311899B2 (en) * 2002-02-04 2007-12-25 L'oreal S.A. Compositions comprising at least one silicone, at least one compound comprising at least one ester group, and at least one copolymer, and methods for using the same
JP4652060B2 (ja) 2005-01-11 2011-03-16 日東電工株式会社 粘着テープ及び粘着テープ用基材

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855506A (en) * 1956-02-29 1958-10-07 Mackay Radio & Telegraph Co Automatic frequency control circuit for frequency shift radio telegraphy
US3205442A (en) * 1961-12-21 1965-09-07 Bell Telephone Labor Inc Automatic adjustable equalizer for signal amplitude variations
US3810019A (en) * 1972-09-25 1974-05-07 Sperry Rand Corp Multifrequency communication system for fading channels
US3820042A (en) * 1973-05-03 1974-06-25 Bell Telephone Labor Inc Fast start-up system for automatic transversal equalizers
US4298983A (en) * 1978-10-27 1981-11-03 Kokusai Denshin Denwa Kabushiki Kaisha Automatic equalization system in FM communication circuit
AU5630880A (en) * 1979-03-06 1980-09-11 R.J. Carpenter Digitally controlled analog filtering
JPS57170656A (en) * 1981-04-14 1982-10-20 Nec Corp Multi-frequency signal receiver
US4409593A (en) * 1982-01-11 1983-10-11 General Electric Company Threshold-less collision detection and bit arbitration in a CFSK data system
US4528674A (en) * 1983-08-22 1985-07-09 E-Systems, Inc. Method and apparatus for baseband generation of a spread spectrum reference signal for use in an LMS adaptive array processor

Also Published As

Publication number Publication date
FI852434A7 (fi) 1985-06-19
FI852434L (fi) 1985-06-19
SE440301B (sv) 1985-07-22
GR80984B (en) 1984-11-29
ES537989A0 (es) 1985-11-01
BR8407204A (pt) 1985-11-05
IT8423834A0 (it) 1984-11-30
ES8602315A1 (es) 1985-11-01
EP0163685B1 (en) 1988-04-27
US4639935A (en) 1987-01-27
NO163259C (no) 1990-04-25
AU3613284A (en) 1985-06-13
DE3470824D1 (en) 1988-06-01
KR850005053A (ko) 1985-08-19
YU201484A (en) 1987-02-28
IT1178662B (it) 1987-09-16
EP0163685A1 (en) 1985-12-11
NO163259B (no) 1990-01-15
WO1985002509A1 (en) 1985-06-06
DK351085A (da) 1985-08-01
NZ210055A (en) 1988-10-28
AU567986B2 (en) 1987-12-10
PT79439A (en) 1984-11-01
JPS61500582A (ja) 1986-03-27
SE8306671L (sv) 1985-06-03
MX156566A (es) 1988-09-09
ATE33912T1 (de) 1988-05-15
KR900004408B1 (ko) 1990-06-25
CA1211799A (en) 1986-09-23
PT79439B (en) 1986-08-05
SE8306671D0 (sv) 1983-12-02
FI852434A0 (fi) 1985-06-19
DK351085D0 (da) 1985-08-01
NO853040L (no) 1985-07-31

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19931229