FI71451C - Utjaemningskrets - Google Patents

Utjaemningskrets Download PDF

Info

Publication number
FI71451C
FI71451C FI791948A FI791948A FI71451C FI 71451 C FI71451 C FI 71451C FI 791948 A FI791948 A FI 791948A FI 791948 A FI791948 A FI 791948A FI 71451 C FI71451 C FI 71451C
Authority
FI
Finland
Prior art keywords
attenuation
circuit
resistors
branches
frequency
Prior art date
Application number
FI791948A
Other languages
English (en)
Finnish (fi)
Other versions
FI791948A (fi
FI71451B (fi
Inventor
Willem Van Doorn
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of FI791948A publication Critical patent/FI791948A/fi
Publication of FI71451B publication Critical patent/FI71451B/fi
Application granted granted Critical
Publication of FI71451C publication Critical patent/FI71451C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/141—Control of transmission; Equalising characterised by the equalising network used using multiequalisers, e.g. bump, cosine, Bode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49016—Antenna or wave energy "plumbing" making

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters And Equalizers (AREA)
FI791948A 1978-06-22 1979-06-19 Utjaemningskrets FI71451C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7806727 1978-06-22
NL7806727A NL7806727A (nl) 1978-06-22 1978-06-22 Egalisatienetwerk.

Publications (3)

Publication Number Publication Date
FI791948A FI791948A (fi) 1979-12-23
FI71451B FI71451B (fi) 1986-09-09
FI71451C true FI71451C (fi) 1986-12-19

Family

ID=19831095

Family Applications (1)

Application Number Title Priority Date Filing Date
FI791948A FI71451C (fi) 1978-06-22 1979-06-19 Utjaemningskrets

Country Status (10)

Country Link
US (1) US4225834A (de)
JP (1) JPS6040214B2 (de)
CA (1) CA1132210A (de)
CH (1) CH648165A5 (de)
DE (1) DE2924043C2 (de)
FI (1) FI71451C (de)
FR (1) FR2429523B1 (de)
GB (1) GB2023960B (de)
NL (1) NL7806727A (de)
SE (1) SE432504B (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718110A (en) * 1980-07-09 1982-01-29 Arupain Kk Equalizer device
JPS5824210A (ja) * 1981-08-05 1983-02-14 Arupain Kk イコライザ装置
JPS63122898A (ja) * 1986-11-07 1988-05-26 三井建設株式会社 ライニングの打設方法
JPH0712133B2 (ja) * 1988-10-21 1995-02-08 三菱電機株式会社 音質調整装置
JPH0774593B2 (ja) * 1991-05-27 1995-08-09 東亜グラウト工業株式会社 管路築造方法
US6798881B2 (en) * 1999-06-07 2004-09-28 Acoustic Technologies, Inc. Noise reduction circuit for telephones
US8644773B2 (en) * 2009-12-10 2014-02-04 Skyworks Solutions, Inc. Multiband low noise amplifier (LNA) with parallel resonant feedback
EP2974000A4 (de) * 2013-03-15 2017-04-05 Dockon AG Frequenzselektiver logarithmischer verstärker mit intrinsischer frequenzdemodulationsfähigkeit
US11082014B2 (en) 2013-09-12 2021-08-03 Dockon Ag Advanced amplifier system for ultra-wide band RF communication
US11183974B2 (en) * 2013-09-12 2021-11-23 Dockon Ag Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion
TWI568173B (zh) * 2013-09-12 2017-01-21 多康股份有限公司 作為無頻率轉換之高敏感選擇接收器之對數檢測放大系統

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB481043A (en) * 1936-12-23 1938-03-04 Gen Electric Co Ltd Improvements in variable attenuators for electric transmission systems and the like
US2658958A (en) * 1949-07-16 1953-11-10 Wilcox Gay Corp Negative feedback frequency response compensation amplifier system
US3336539A (en) * 1965-04-15 1967-08-15 Giannini Scient Corp Variable equalizer system having a plurality of parallel connected tuned circuits
SE355913B (de) * 1967-03-16 1973-05-07 Fujitsu Ltd
SE346891B (de) * 1971-08-27 1972-07-17 Ericsson Telefon Ab L M
DE2512805C3 (de) * 1975-03-22 1978-08-10 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Schaltungsanordnung für einen einstellbaren Entzerrer

Also Published As

Publication number Publication date
CH648165A5 (de) 1985-02-28
FI791948A (fi) 1979-12-23
US4225834A (en) 1980-09-30
CA1132210A (en) 1982-09-21
FI71451B (fi) 1986-09-09
JPS6040214B2 (ja) 1985-09-10
DE2924043A1 (de) 1980-01-03
GB2023960A (en) 1980-01-03
GB2023960B (en) 1982-06-30
JPS554197A (en) 1980-01-12
FR2429523A1 (fr) 1980-01-18
DE2924043C2 (de) 1982-06-09
SE7905379L (sv) 1979-12-23
SE432504B (sv) 1984-04-02
FR2429523B1 (fr) 1986-01-24
NL7806727A (nl) 1979-12-28

Similar Documents

Publication Publication Date Title
US10079414B2 (en) Switched multiplexer with flat group delay and channelized limiting
FI71451C (fi) Utjaemningskrets
US6919782B2 (en) Filter structure including circuit board
US5675300A (en) Top exit coupler
SE429280B (sv) Flerkanaligt sendarsystem for ett mobilt kommunikationssystem
US20180254562A1 (en) Vivaldi antenna-based antenna system
US2147728A (en) Phase changer
WO1999053613A1 (en) Attenuating volume control
US6492886B1 (en) Laminated filter, duplexer, and mobile communication apparatus using the same
CA1131820A (en) Driving point impedance
US3753140A (en) Equalizing network
GB2219457A (en) Impedance matching network
CN203813758U (zh) 耦合电路及无线电传输链
US4885557A (en) Broadband constant voltage multicoupler
US5150085A (en) Electronically tunable front end filter for radio apparatus
CN111147159A (zh) 校准电路、校准网络和智能天线
US6784760B2 (en) Step attenuator using frequency dependent components and method of effecting signal attenuation
US4024346A (en) Telephone line amplifier
GB514567A (en) Improvements in or relating to thermionic amplifiers
US10348268B2 (en) Demultiplexing circuit
JPH0537212A (ja) 電力分配合成器
US3054858A (en) Signal distribution arrangement for closed-circuit communications systems
US5442328A (en) Transmission line correction system
KR100322196B1 (ko) 유전체세라믹을 이용한 고주파용 듀얼 대역통과필터
US6812809B2 (en) Method of tuning a summing network

Legal Events

Date Code Title Description
TC Name/ company changed in patent

Owner name: PHILIPS ELECTRONICS N.V.

MM Patent lapsed
MM Patent lapsed

Owner name: PHILIPS ELECTRONICS N.V.