FI72626C - Anordning foer kompensering av frekvensvariationer i fm-system. - Google Patents

Anordning foer kompensering av frekvensvariationer i fm-system. Download PDF

Info

Publication number
FI72626C
FI72626C FI811848A FI811848A FI72626C FI 72626 C FI72626 C FI 72626C FI 811848 A FI811848 A FI 811848A FI 811848 A FI811848 A FI 811848A FI 72626 C FI72626 C FI 72626C
Authority
FI
Finland
Prior art keywords
input
control loop
output
loop
low
Prior art date
Application number
FI811848A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI72626B (fi
FI811848L (fi
Inventor
Hans Hjoerring
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Publication of FI811848L publication Critical patent/FI811848L/fi
Application granted granted Critical
Publication of FI72626B publication Critical patent/FI72626B/fi
Publication of FI72626C publication Critical patent/FI72626C/fi

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
    • H04L27/14—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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
FI811848A 1980-06-13 1981-06-12 Anordning foer kompensering av frekvensvariationer i fm-system. FI72626C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3022287A DE3022287C2 (de) 1980-06-13 1980-06-13 Schaltung zur Kompensation von Frequenzschwankungen in FM-Systemen
DE3022287 1980-06-13

Publications (3)

Publication Number Publication Date
FI811848L FI811848L (fi) 1981-12-14
FI72626B FI72626B (fi) 1987-02-27
FI72626C true FI72626C (fi) 1987-06-08

Family

ID=6104590

Family Applications (1)

Application Number Title Priority Date Filing Date
FI811848A FI72626C (fi) 1980-06-13 1981-06-12 Anordning foer kompensering av frekvensvariationer i fm-system.

Country Status (5)

Country Link
DE (1) DE3022287C2 (no)
DK (1) DK151995C (no)
FI (1) FI72626C (no)
NO (1) NO154029C (no)
SE (1) SE453239B (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1175490A (en) * 1982-03-12 1984-10-02 Ralph T. Carsten Frequency shift keying demodulators
DE3324311A1 (de) * 1983-07-06 1985-01-17 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Decoder fuer ein frequenzgetastetes signal, insbesondere ein fsk-bildschirmtext-signal
AU3290084A (en) * 1983-09-16 1985-03-21 Audicom Corp. Encoding of transmitted program material
US10862720B2 (en) 2018-10-08 2020-12-08 Nxp B.V. Phase locked loop frequency shift keying demodulator using an auxiliary charge pump and a differential slicer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860874A (en) * 1973-12-04 1975-01-14 Us Interior Receiver for dfsk signals

Also Published As

Publication number Publication date
DE3022287A1 (de) 1981-12-17
SE8103213L (sv) 1981-12-14
FI72626B (fi) 1987-02-27
NO154029C (no) 1986-07-02
DK151995B (da) 1988-01-18
DK151995C (da) 1988-08-08
DE3022287C2 (de) 1982-06-24
DK257981A (da) 1981-12-14
SE453239B (sv) 1988-01-18
NO811963L (no) 1981-12-14
FI811848L (fi) 1981-12-14
NO154029B (no) 1986-03-24

Similar Documents

Publication Publication Date Title
JP3173788B2 (ja) デジタル伝送装置および直接変換レシーバ
US6255912B1 (en) Phase lock loop used as up converter and for reducing phase noise of an output signal
JPS623621B2 (no)
FI101437B (fi) Jännitesäätöisen oskillaattorin ohjaus
US4670888A (en) Frequency modulated modem transmitter
US6922402B1 (en) Mutual frequency locking across a link
US5793819A (en) Radio communication terminal station
FI72626C (fi) Anordning foer kompensering av frekvensvariationer i fm-system.
CA2118810C (en) Radio having a combined pll and afc loop and method of operating the same
US3480883A (en) Frequency modulated phase-locked oscillator
JPS58170145A (ja) デイジタル伝送におけるクロツク周波数再生中継装置
US5155454A (en) MSK modulator using a VCO to produce MSK signals
US3629716A (en) Method and apparatus of infinite q detection
EP0064728B1 (en) Multiple phase digital modulator
JP3153671B2 (ja) 移動無線機
US6597247B1 (en) Circuit for the frequency multiplication of an angle modulated signal using a PLL and method
JPH06326740A (ja) 移動無線機
JPH05227241A (ja) チャネル周波数の粗同調方法
JPH0430830Y2 (no)
JP2700972B2 (ja) パイロット信号及びその信号対雑音比検出回路
KR910005529B1 (ko) 이중루프에 의한 발진주파수 추적 발생장치
JPS5811143B2 (ja) 送信周波数制御装置
KR19980015962A (ko) 위상 동기 루프 회로
GB2214742A (en) Noise-controlled frequency-modulation signal detector
JPH09326752A (ja) 移動体通信端末装置

Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: SIEMENS AKTIENGESELLSCHAFT