DK175646B1 - Radiotelefonanlæg til kommunikation af informationssignaler over en anvist frekvenskanal - Google Patents

Radiotelefonanlæg til kommunikation af informationssignaler over en anvist frekvenskanal Download PDF

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Publication number
DK175646B1
DK175646B1 DK198701287A DK128787A DK175646B1 DK 175646 B1 DK175646 B1 DK 175646B1 DK 198701287 A DK198701287 A DK 198701287A DK 128787 A DK128787 A DK 128787A DK 175646 B1 DK175646 B1 DK 175646B1
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DK
Denmark
Prior art keywords
frequency
signal
vco
phase
rom
Prior art date
Application number
DK198701287A
Other languages
Danish (da)
English (en)
Other versions
DK128787D0 (da
DK128787A (da
Inventor
Eric Paneth
Original Assignee
Interdigital Tech Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25283546&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK175646(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of DK128787D0 publication Critical patent/DK128787D0/da
Publication of DK128787A publication Critical patent/DK128787A/da
Application granted granted Critical
Publication of DK175646B1 publication Critical patent/DK175646B1/da

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • 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
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
    • 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
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
DK198701287A 1986-03-18 1987-03-13 Radiotelefonanlæg til kommunikation af informationssignaler over en anvist frekvenskanal DK175646B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/840,908 US4785260A (en) 1986-03-18 1986-03-18 Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels
US84090886 1986-03-18

Publications (3)

Publication Number Publication Date
DK128787D0 DK128787D0 (da) 1987-03-13
DK128787A DK128787A (da) 1987-09-19
DK175646B1 true DK175646B1 (da) 2005-01-03

Family

ID=25283546

Family Applications (1)

Application Number Title Priority Date Filing Date
DK198701287A DK175646B1 (da) 1986-03-18 1987-03-13 Radiotelefonanlæg til kommunikation af informationssignaler over en anvist frekvenskanal

Country Status (26)

Country Link
US (1) US4785260A (fr)
JP (1) JPH0785537B2 (fr)
KR (1) KR900002695B1 (fr)
CN (1) CN1007397B (fr)
AT (1) AT400787B (fr)
AU (1) AU570859B2 (fr)
BE (1) BE905821A (fr)
BR (1) BR8701214A (fr)
CA (1) CA1257337A (fr)
CH (1) CH671661A5 (fr)
DE (1) DE3640555C2 (fr)
DK (1) DK175646B1 (fr)
ES (1) ES2004164A6 (fr)
FI (1) FI90608C (fr)
FR (1) FR2597684B1 (fr)
GB (1) GB2188201B (fr)
HK (1) HK66290A (fr)
IL (1) IL80496A (fr)
IN (1) IN169257B (fr)
IT (1) IT1205753B (fr)
MX (1) MX164954B (fr)
MY (1) MY101551A (fr)
NL (1) NL8700646A (fr)
NO (1) NO864619L (fr)
SE (1) SE467902B (fr)
SG (1) SG11590G (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4862107A (en) * 1986-03-18 1989-08-29 International Mobile Machines Corporation Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
DE3914990A1 (de) * 1989-05-06 1990-11-08 Ako Werke Gmbh & Co Strahlungsheizeinrichtung
FI895068A0 (fi) * 1989-10-25 1989-10-25 Telenokia Oy Frekvenssyntetisator.
JP2864143B2 (ja) * 1990-03-20 1999-03-03 富士通株式会社 信号検出回路
KR930008433B1 (ko) * 1991-05-15 1993-08-31 금성일렉트론 주식회사 듀얼 위상동기 루프의 락 검출장치
US5144254A (en) * 1991-09-30 1992-09-01 Wilke William G Dual synthesizer including programmable counters which are controlled by means of calculated input controls
US5301366A (en) * 1992-04-07 1994-04-05 Rockwell International Corporation High performance frequency tuning with low cost synthesizer
ES2060536B1 (es) * 1992-11-30 1995-06-01 Alcatel Standard Electrica Sintetizador de frecuencias.
US5317284A (en) * 1993-02-08 1994-05-31 Hughes Aircraft Company Wide band, low noise, fine step tuning, phase locked loop frequency synthesizer
US5317285A (en) * 1993-02-26 1994-05-31 Motorola, Inc. Frequency synthesizer employing a continuously adaptive phase detector and method
US5354893A (en) * 1993-07-30 1994-10-11 The University Of Delaware CMS/SiO2 /Al2 O3 catalysts for improved selectivity in the synthesis of amines from methanol and/or dimethyl ether and ammonia
JP3000360U (ja) * 1994-01-21 1994-08-09 株式会社船井電機研究所 通信機器用基準信号生成回路
FR2745138B1 (fr) * 1996-02-16 1998-05-07 Thomson Multimedia Sa Dispositif de correction de bruit de phase dans un recepteur numerique
DE19747735C2 (de) * 1997-10-29 2003-04-30 Infineon Technologies Ag Frequenzsynthesizer für ein Mobilfunkendgerät
FR2791213B1 (fr) * 1999-03-16 2001-05-25 Sagem Dispositif et procede d'emission dans un telephone mobile
KR101088065B1 (ko) * 2006-06-29 2011-11-30 니폰덴신뎅와 가부시키가이샤 Ｃｄｒ 회로
FR2913151A1 (fr) * 2007-06-26 2008-08-29 Thomson Licensing Sas Procede de limitation des perturbations dues a la microphonie dans le dispositifs d'emission reception radio frequence

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435367A (en) * 1967-08-24 1969-03-25 Bendix Corp Digitally controlled frequency synthesizer
US3546617A (en) * 1968-11-26 1970-12-08 Rca Corp Digital frequency synthesizer
GB1303631A (fr) * 1969-03-01 1973-01-17
NL163396C (nl) * 1974-04-22 1980-08-15 Philips Nv Meerkanaalgenerator.
JPS527613A (en) * 1975-07-09 1977-01-20 Oki Electric Ind Co Ltd Afc system
JPS5254356A (en) * 1975-10-30 1977-05-02 Toshiba Corp Pahse-synchronized variable frequency oscillator
JPS5358A (en) * 1976-06-24 1978-01-05 Yaesu Musen Kk Fast responding pll oscillating circuit
DE2741351C2 (de) * 1977-09-14 1983-12-08 Wandel & Goltermann Gmbh & Co, 7412 Eningen Digital einstellbarer Frequenzerzeuger mit mehreren Oszillatoren
FR2412981A1 (fr) * 1977-12-23 1979-07-20 Adret Electronique Synthetiseur de frequence a boucles multiples d'asservissement de phase, agence de facon a eviter toute discontinuite de frequence ou d'amplitude dans une large gamme de variation de frequence
GB2045556B (en) * 1979-03-06 1983-08-03 Racal Dana Instr Ltd Frequency synthesizers
US4234929A (en) * 1979-09-24 1980-11-18 Harris Corporation Control device for a phase lock loop vernier frequency synthesizer
GB2079552B (en) * 1980-07-02 1984-02-01 Philips Electronic Associated Double phase lock loop
JPS5854740A (ja) * 1981-09-28 1983-03-31 Nec Corp 周波数シンセサイザ
JPS58189632U (ja) * 1982-06-11 1983-12-16 アイコム株式会社 周波数シンセサイザ
US4511859A (en) * 1982-08-30 1985-04-16 At&T Bell Laboratories Apparatus for generating a common output signal as a function of any of a plurality of diverse input signals
US4551689A (en) * 1983-02-25 1985-11-05 Comtech Telecommunications Corp. RF Local oscillator with low phase noise

Also Published As

Publication number Publication date
IT8747728A0 (it) 1987-03-16
AU570859B2 (en) 1988-03-24
JPH0785537B2 (ja) 1995-09-13
BR8701214A (pt) 1987-12-29
CN87101989A (zh) 1987-11-18
NO864619D0 (no) 1986-11-19
NO864619L (no) 1987-09-21
MX164954B (es) 1992-10-09
KR870009563A (ko) 1987-10-27
CN1007397B (zh) 1990-03-28
US4785260A (en) 1988-11-15
KR900002695B1 (ko) 1990-04-23
CH671661A5 (fr) 1989-09-15
DE3640555C2 (de) 1997-05-15
SE467902B (sv) 1992-09-28
DK128787D0 (da) 1987-03-13
FR2597684A1 (fr) 1987-10-23
FI90608C (fi) 1994-02-25
JPS62242421A (ja) 1987-10-23
GB2188201A (en) 1987-09-23
FR2597684B1 (fr) 1990-12-14
GB8627430D0 (en) 1986-12-17
CA1257337A (fr) 1989-07-11
IL80496A (en) 1990-04-29
DE3640555A1 (de) 1987-09-24
HK66290A (en) 1990-08-31
AU6429886A (en) 1987-10-01
NL8700646A (nl) 1987-10-16
DK128787A (da) 1987-09-19
SG11590G (en) 1990-07-06
SE8604662L (sv) 1987-09-19
SE8604662D0 (sv) 1986-10-31
ES2004164A6 (es) 1988-12-16
AT400787B (de) 1996-03-25
ATA36487A (de) 1995-07-15
BE905821A (fr) 1987-05-27
FI90608B (fi) 1993-11-15
FI864927A (fi) 1987-09-19
GB2188201B (en) 1989-12-06
IL80496A0 (en) 1987-02-27
IT1205753B (it) 1989-03-31
IN169257B (fr) 1991-09-21
FI864927A0 (fi) 1986-12-02
MY101551A (en) 1991-12-17

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