SE466981B - Frekvensmodulerbar frekvensgenerator - Google Patents

Frekvensmodulerbar frekvensgenerator

Info

Publication number
SE466981B
SE466981B SE9101055A SE9101055A SE466981B SE 466981 B SE466981 B SE 466981B SE 9101055 A SE9101055 A SE 9101055A SE 9101055 A SE9101055 A SE 9101055A SE 466981 B SE466981 B SE 466981B
Authority
SE
Sweden
Prior art keywords
frequency
data signal
values
register
predetermined
Prior art date
Application number
SE9101055A
Other languages
English (en)
Swedish (sv)
Other versions
SE9101055L (sv
SE9101055D0 (sv
Inventor
T Boegl
Original Assignee
Rohde & Schwarz
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 Rohde & Schwarz filed Critical Rohde & Schwarz
Publication of SE9101055D0 publication Critical patent/SE9101055D0/xx
Publication of SE9101055L publication Critical patent/SE9101055L/
Publication of SE466981B publication Critical patent/SE466981B/sv

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
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/1806—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop the frequency divider comprising a phase accumulator generating the frequency divided signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
SE9101055A 1989-11-28 1991-04-09 Frekvensmodulerbar frekvensgenerator SE466981B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3939259A DE3939259A1 (de) 1989-11-28 1989-11-28 Frequenzmodulierbarer frequenzgenerator

Publications (3)

Publication Number Publication Date
SE9101055D0 SE9101055D0 (sv) 1991-04-09
SE9101055L SE9101055L (sv) 1992-05-04
SE466981B true SE466981B (sv) 1992-05-04

Family

ID=6394317

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9101055A SE466981B (sv) 1989-11-28 1991-04-09 Frekvensmodulerbar frekvensgenerator

Country Status (4)

Country Link
US (1) US5053728A (enExample)
EP (1) EP0429859A3 (enExample)
DE (1) DE3939259A1 (enExample)
SE (1) SE466981B (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187721A (en) * 1987-03-04 1993-02-16 National Semiconductor Corporation Frequency shift keying modulator
US5311556A (en) * 1991-08-30 1994-05-10 Elsag International B.V. Digital FSK transmitter receiver and method of operating same
FI90169C (fi) * 1991-12-31 1993-12-27 Nokia Mobile Phones Ltd Foerfarande och kopplingsarrangemang foer att alstra en modulerad signal
JPH0697738A (ja) * 1992-09-10 1994-04-08 Nec Corp ディジタルｆｍ変調器
US5323125A (en) * 1993-03-15 1994-06-21 Motorola, Inc. Frequency agile method for transmitting multi-level data
JPH1198033A (ja) * 1997-09-25 1999-04-09 Circuit Design:Kk ワイヤレス・マイクロホン用ｕｈｆ帯搬送波ｆｍ送信機
US6707857B1 (en) 2000-07-14 2004-03-16 Ericsson Inc. Reference signal pre-distortion for transmitter with frequency synthesizer based phase encoding
AU2001281282A1 (en) * 2000-07-14 2002-01-30 Ericsson Inc. Phase modulator using a frequency synthesizer
KR20020052451A (ko) * 2000-12-26 2002-07-04 박태진 다중 주파수 천이 키잉 신호 발생 장치 및 방법
US7482885B2 (en) * 2005-12-29 2009-01-27 Orca Systems, Inc. Method of frequency synthesis for fast switching
US7519349B2 (en) * 2006-02-17 2009-04-14 Orca Systems, Inc. Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
EP3306817B8 (en) * 2016-10-07 2021-04-21 Rohde & Schwarz GmbH & Co. KG Predistortion system and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735269A (en) * 1971-10-29 1973-05-22 Rockland Systems Corp Digital frequency synthesizer
CH654155A5 (de) * 1979-06-08 1986-01-31 Ericsson Telefon Ab L M Konverter in einem modulator fuer die phasenmodulation von datensymbolen.
US4628286A (en) * 1985-04-17 1986-12-09 Rca Corporation Digital frequency modulator
US4871987A (en) * 1987-03-28 1989-10-03 Kabushiki Kaisha Kenwood FSK or am modulator with digital waveform shaping
DE3740130C1 (de) * 1987-11-26 1989-06-08 Rohde & Schwarz Sinusgenerator
US5016259A (en) * 1989-03-03 1991-05-14 The Grass Valley Group, Inc. Low jitter DDFS FSK modulator

Also Published As

Publication number Publication date
SE9101055L (sv) 1992-05-04
DE3939259A1 (de) 1991-05-29
DE3939259C2 (enExample) 1992-05-27
EP0429859A2 (de) 1991-06-05
EP0429859A3 (en) 1992-11-25
SE9101055D0 (sv) 1991-04-09
US5053728A (en) 1991-10-01

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