IT1205753B - Sistema di trasmissione via telefono - Google Patents

Sistema di trasmissione via telefono

Info

Publication number
IT1205753B
IT1205753B IT47728/87A IT4772887A IT1205753B IT 1205753 B IT1205753 B IT 1205753B IT 47728/87 A IT47728/87 A IT 47728/87A IT 4772887 A IT4772887 A IT 4772887A IT 1205753 B IT1205753 B IT 1205753B
Authority
IT
Italy
Prior art keywords
transmission system
telephone transmission
telephone
transmission
Prior art date
Application number
IT47728/87A
Other languages
English (en)
Italian (it)
Other versions
IT8747728A0 (it
Inventor
Eric Paneth
Original Assignee
Int Mobile Machines
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=IT1205753(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Int Mobile Machines filed Critical Int Mobile Machines
Publication of IT8747728A0 publication Critical patent/IT8747728A0/it
Application granted granted Critical
Publication of IT1205753B publication Critical patent/IT1205753B/it

Links

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)
IT47728/87A 1986-03-18 1987-03-16 Sistema di trasmissione via telefono IT1205753B (it)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IT8747728A0 IT8747728A0 (it) 1987-03-16
IT1205753B true IT1205753B (it) 1989-03-31

Family

ID=25283546

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47728/87A IT1205753B (it) 1986-03-18 1987-03-16 Sistema di trasmissione via telefono

Country Status (26)

Country Link
US (1) US4785260A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0785537B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR900002695B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN1007397B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT400787B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU570859B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE905821A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR8701214A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1257337A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH671661A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3640555C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK175646B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2004164A6 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FI (1) FI90608C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2597684B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2188201B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
HK (1) HK66290A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IL (1) IL80496A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IN (1) IN169257B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1205753B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MX (1) MX164954B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MY (1) MY101551A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL8700646A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO864619L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE467902B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SG (1) SG11590G (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 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
CA1257337A (en) 1989-07-11
IL80496A0 (en) 1987-02-27
GB8627430D0 (en) 1986-12-17
IT8747728A0 (it) 1987-03-16
IL80496A (en) 1990-04-29
JPH0785537B2 (ja) 1995-09-13
CN87101989A (zh) 1987-11-18
ATA36487A (de) 1995-07-15
CN1007397B (zh) 1990-03-28
DE3640555A1 (de) 1987-09-24
KR870009563A (ko) 1987-10-27
FI90608C (fi) 1994-02-25
DE3640555C2 (de) 1997-05-15
NO864619L (no) 1987-09-21
AU6429886A (en) 1987-10-01
DK175646B1 (da) 2005-01-03
US4785260A (en) 1988-11-15
NO864619D0 (no) 1986-11-19
KR900002695B1 (ko) 1990-04-23
BR8701214A (pt) 1987-12-29
AT400787B (de) 1996-03-25
SE8604662D0 (sv) 1986-10-31
FR2597684A1 (fr) 1987-10-23
FI864927A0 (fi) 1986-12-02
FI864927A7 (fi) 1987-09-19
FR2597684B1 (fr) 1990-12-14
NL8700646A (nl) 1987-10-16
BE905821A (fr) 1987-05-27
HK66290A (en) 1990-08-31
AU570859B2 (en) 1988-03-24
DK128787A (da) 1987-09-19
GB2188201A (en) 1987-09-23
JPS62242421A (ja) 1987-10-23
IN169257B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-09-21
GB2188201B (en) 1989-12-06
SE467902B (sv) 1992-09-28
ES2004164A6 (es) 1988-12-16
CH671661A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-09-15
MX164954B (es) 1992-10-09
SG11590G (en) 1990-07-06
SE8604662L (sv) 1987-09-19
MY101551A (en) 1991-12-17
FI90608B (fi) 1993-11-15
DK128787D0 (da) 1987-03-13

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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: 19970329