FI79636C - EN BAERVAOGSREGLERANDE KOPPLING AV EN FOER EN RADIOTELEFONANORDNING AVSEDD FM-SYNTETISATOR. - Google Patents

EN BAERVAOGSREGLERANDE KOPPLING AV EN FOER EN RADIOTELEFONANORDNING AVSEDD FM-SYNTETISATOR. Download PDF

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Publication number
FI79636C
FI79636C FI864909A FI864909A FI79636C FI 79636 C FI79636 C FI 79636C FI 864909 A FI864909 A FI 864909A FI 864909 A FI864909 A FI 864909A FI 79636 C FI79636 C FI 79636C
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FI
Finland
Prior art keywords
crystal oscillator
voltage
control
frequency
digital
Prior art date
Application number
FI864909A
Other languages
Finnish (fi)
Swedish (sv)
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FI864909A (en
FI864909A0 (en
FI79636B (en
Inventor
Torsti Poutanen
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI864909A priority Critical patent/FI79636C/en
Publication of FI864909A0 publication Critical patent/FI864909A0/en
Priority to DE19873738124 priority patent/DE3738124C2/en
Priority to SE8704385A priority patent/SE467642B/en
Priority to NO874934A priority patent/NO172418C/en
Priority to DK626887A priority patent/DK626887A/en
Publication of FI864909A publication Critical patent/FI864909A/en
Application granted granted Critical
Publication of FI79636B publication Critical patent/FI79636B/en
Publication of FI79636C publication Critical patent/FI79636C/en

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Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02Automatic frequency control
    • H03J7/04Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Transceivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Description

7 796367 79636

Patenttivaatimukset 1. Radiopuhelinlaitteeseen tarkoitetun FM-syntetisoijän kantoaallon taajuuden ohjausmenetelmä, jossa tukiaseman lähettämää kantoaaltoa käytetään jänniteohjatun kideoskillaat-torin (1) ja vaihelukitun silmukan muodostaman syntetisoi jän mainitun jänniteohjatun kideoskillaattorin ohjaukseen, tunnettu siitä, että paikalliskideoskillaattorin (15) taajuudesta numeerisesti jakamalla muodostetaan vakioaika (T), jonka ajan laskurilla (14) lasketaan toisen välitaajuussignaalin (IF2) jaksoja, laskentatuloksen ollessa digitaalisessa muodossa ja että laskentatulosta käytetään digitaali-analogia -muunnoksen (18) jälkeen jänniteohjatun kideoskillaattorin (1) ohjaukseen.A carrier frequency control method for an FM synthesizer for a radiotelephone device, wherein the carrier transmitted by the base station is used to control the voltage of a voltage-controlled crystal oscillator (1) and a phase-locked loop synthesizer ), during which the counter (14) counts the periods of the second intermediate frequency signal (IF2), the calculation result being in digital form, and that the calculation result is used after the digital-to-analog conversion (18) to control the voltage-controlled crystal oscillator (1).

2. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että mainitun jänniteohjatun kideoskillaattorin (1) ohjaukseen käytetään digitaalisessa muodossa olevan laskentatuloksen ja ennalta mikroprosessorilla (16) määrätyn kiinteänä pysyvän vakioluvun erotusta digitaali-analogia -muunnoksen (18) jälkeen.Method according to claim 1, characterized in that the difference between the calculation result in digital form and a fixed constant number predetermined by the microprocessor (16) is used to control said voltage-controlled crystal oscillator (1) after the digital-to-analog conversion (18).

3. Jonkin edellisen patenttivaatimuksen mukainen menetelmä, tunnettu siitä, että mainittuna vakiolaskenta-aikana (T) lasketaan välitaajuussignaalin (IF2) jaksoja laskurilla (14) useita kertoja mikroprosessorin (16) ohjaussanan nollasta sen kiinteään maksimiarvoon (256) saakka ja että ohjaukseen käytetään vain vakiolaskenta-ajän päättymishetkellä viimeksi ohjaussanan nollasta aloitettua laskentatulosta (M), jota käytetään aina uutena ohjaussanana ja digitaali-analogia -muunnoksen (18) jälkeen jänniteohjatun kideoskillaattorin (1) ohjaukseen. 1 2 3Method according to one of the preceding claims, characterized in that during said constant calculation (T) the periods of the intermediate frequency signal (IF2) are counted by the counter (14) several times from zero of the microprocessor (16) control word to its fixed maximum value (256) and only standard calculation is used for control at the end of the time, the calculation result (M) last started from zero of the control word, which is always used as a new control word and after the digital-to-analog conversion (18) for controlling the voltage-controlled crystal oscillator (1). 1 2 3

Patenttivaatimuksen 3 mukainen menetelmä, tunnettu 2 siitä, että ohjaussanan kiinteän maksimiarvon (256) mainittu 3 vakio-osa on puolet tästä ohjaussanan kiinteästä maksimiar- 8 79636 vosta, jolloin ohjaussanan maksimiarvo vastaa jänniteohjatun kideoskillaattorin (1) maksimiohjausjännitettä.A method according to claim 3, characterized in that said constant part 3 of the fixed maximum value (256) of the control word is half of this fixed maximum value of the control word, the maximum value of the control word corresponding to the maximum control voltage of the voltage controlled crystal oscillator (1).

5. Jonkin edellisen patenttivaatimuksen mukainen menetelmä, tunnettu siitä, että syntetisoijän lopputaajuuksien säätämiseksi on mikroprosessori (16) sovitettu lisäämään tai vähentämään kiinteä luku ohjaussanasta.Method according to one of the preceding claims, characterized in that the microprocessor (16) is adapted to increase or decrease a fixed number of the control word in order to adjust the final frequencies of the synthesizer.

6. Radiopuhelinlaitteeseen tarkoitetun FM-syntetisoijän kantoaaltoa ohjaava kytkentä, jossa on prosessori (16), prosessorilla kideoskillaattori (15), digitaali-analogia -muunnin (18) ja laskuri (14) sekä yhteys syntetisoijän jänniteohjatun kideoskillaattorin (1) ohjausjännitteeseen (V ) ja yhteys oh j vastaanottimen välitaajuuteen (IF2), jossa syntetisoijän jänniteoh jattua kideoskillaattoria (1) ohjataan lukittumalla puhelimen tukiaseman lähettämän ja vastaanotetun signaalin kantoaaltotaajuuteen (f ), tunnettu siitä, että puhelimen in mikroprosessori (16) laskee laskurilla (14) vakioajan (T) vastaanottimen välitaajuussignaalin (IF2) jaksoja ja saa tulokseksi tietyn luvun (M), jolle tehdään D/A-muuntimen (18) kautta digitaali-analogia -muunnos ja että näin saadulla jännitteellä ohjataan syntetisoi jän jänniteohjattua kideoskillaattoria (1), jolloin lukitustilanteessa ohjausluku (M) ei muutu eri laskentakerroilla.A carrier for controlling the carrier of an FM synthesizer for a radiotelephone device, comprising a processor (16), a crystal oscillator (15) with a processor, a digital-to-analog converter (18) and a counter (14) and a connection to the control voltage (V) of the voltage controlled crystal oscillator (1) connection to the intermediate frequency (IF2) of the receiver, in which the voltage-controlled crystal oscillator (1) of the synthesizer is controlled by locking to the carrier frequency (f) of the signal transmitted and received by the telephone base station, characterized in that the microprocessor (16) calculates the constant time (T) of the receiver cycles of the intermediate frequency signal (IF2) and results in a certain number (M) to which a digital-to-analog conversion is performed via the D / A converter (18) and that the voltage thus obtained controls the synthesizer voltage-controlled crystal oscillator (1). does not change with different calculation factors.

7. Patenttivaatimuksen 6 mukainen kytkentä, tunnettu siitä, että aika (T) on johdettu prosessorin (16) kideoskil-laattorista (15) jakamalla.Coupling according to Claim 6, characterized in that the time (T) is derived from the crystal oscillator (15) of the processor (16) by division.

8. Patenttivaatimuksen 6 tai 7 mukainen kytkentä, tunnettu siitä, että syntetisoijaosan (S) jänniteohjattua kideoskillaattoria (1) käytetään myös lähetinsyntetisoijän re-ferenssitaajuutena. 1Coupling according to Claim 6 or 7, characterized in that the voltage-controlled crystal oscillator (1) of the synthesizer section (S) is also used as the reference frequency of the transmitter synthesizer. 1

Jonkin patenttivaatimuksista 6-8 mukainen kytkentä, tunnettu siitä, että vastaanotinosan (R) paikallisoskil-laattori (10) on taajuusstabiili kideoskillaattori.Coupling according to one of Claims 6 to 8, characterized in that the local oscillator (10) of the receiver part (R) is a frequency-stable crystal oscillator.

9 796369,79636

Patentkrav 1. Regleringsmetod för en för en radiotelefonanordning avsedd FM-syntetisators bärvagsfrekvens, vid vilken den av en stödstation avgivna bärvagen används för regiering av den spänningsreglerade kristalloscillatorn (1) hos en av en fast-läst slinga och nämnda spänningsreglerade kristalloscillator bildad syntetisator, kännetecknad av att man av den lokala kristalloscillatorns (15) frekvens genom numerisk delning bildar en konstant tid (T), under vilken tid med en räknare räknas den andra mellanfrekvenssignalens (IF2) perioder, var-vid räkneresultatet är i digitalform, och av att räkneresul-tatet efter digital-analogi-omvandling (18) används för regiering av den spänningsreglerade kristalloscillatorn (1).Patent Regulation 1. A method of adjusting the radio frequency interference with an FM radio synthesizer at a high frequency, by means of a device for adjusting the crystal oscillator of the crystal oscillator (1), which comprises a high speed circuit Fig. of the local crystal oscillators (15), the frequency genomic numerical image of the constant (T), under the wavelength of the signal to the high frequency signal (IF2) period, may be used in digital form, and then digital-analog-omvandling (18) is applied to the adjustment of the splitter regulator crystal oscillator (1).

2. Metod enligt patentkravet 1, kännetecknad av att för regiering av nämnda spännigsreglerade kristalloscillator (1) används skillnaden mellan räkneresultatet i digitalform och ett pä förhand med mikroprocessor (16) bestämt konstant standardtal, efter digital-analogi-omvandling (18).2. A method according to claim 1, which comprises the method of adjusting a crystal oscillator (1) according to the above-mentioned voltage regulator in a digital form and to obtain a microprocessor (16) with a constant constant (then digital-analog).

3. Metod enligt nägot av föregäende patentkrav, kännetecknad av att under nämnda standardräknetid (T) räknas den andra mellanfrekvenssignalens (IF2) perioder med räknaren (14) i flera omgängar frän mikroprocessorns (16) reglerings-ords noil till dess konstanta maximalvärde (256) och av att för regleringen används endast vid standardräknetidens utgang det frän regleringsordets noll senast päbörjade räkneresultatet (M), vilket alltid används som nytt regleringsord och efter digital-analogi-omvandling (18) för regiering av den spänningsreglerade kristalloscillatorn. 1 2 3 4 53. A method for determining the frequency of a standard device (T) with a signal frequency range (IF2) periodically associated with a signal (14) in which the microprocessor (16) is controlled by a maximum of 25 If the control is used as a standard, it is determined that the control results are zero (M), and then the digital control is used and then the digital-to-analogue control (18) is used to adjust the crystal control. 1 2 3 4 5

Metod enligt patentkravet 3, kännetecknad av att 2 nämnda standarddel av det konstanta maximalvärdet (256) av 3 regleringsordet utgör hälften av det konstanta maximala vär- 4 det av detta regleringsord, varvid regleringsordets maximala 5 värde motsvarar den spänningsreglerade kristalloscillatorns (1) maximala regleringsspänning.The method according to claim 3, with the reference to figure 2 of these standards, has a constant maximum value (256) of 3 regulators with a maximum value of a constant value of 4, the color regulator has a maximum of 5 values with a maximum of 1 voltage regulator.

10 79636 5. Metod enligt nägot av föregaende patentkrav, känne-tecknad av att för regiering av syntetisatorns definitiva frekvenser är mikroprocessorn (16) anordnad att oka eller minska ett konstant tal fran regleringsordet.10 79636 5. A method according to the preceding claims, which comprises a method for adjusting a synthesizer with a definable frequency and a microprocessor (16), which can be used as a constant or a constant control method.

6. För en radiotelefonanordning avsedd bärvagsreglerande koppling, omfattande en processor (16), i processorn en kris- talloscillator (15), en digital-analogi-omvandlare (18) och en räknare (14) samt anslutning till syntetisatorns spän- ningsreglerade kristalloscillators (1) regleringsspänning (V ) och anslutning till mottagarens mellanfrekvens (IF2) ohi i vilken koppling syntetisatorns spänningsreglerade kristall- oscillator (1) regleras genom läsning vid den av stödstatio- nen avgivna och mottagna signalens bärvagsfrekvens (f ), in kännetecknad av att telefonens mikroprocessor (16) under en standardtid (T) med räknaren (14) räknar mottagarens mellan-frekvenssignals (IF2) perioder och som resultat far ett visst tai (M), pä vilket genom D/A-omvandlaren (18) utförs en digi-tal-analogi-omvandling, och av att med den salunda erhallna spänningen regleras syntetisatorns spänningsreglerade kris-talloscillator (1), varvid regleringstalet (M) i läsningslä-get inte Mndras under de olika räkneomgängarna.6. For radio-telephony control, amplification of a processor (16), a processor and a crystal oscillator (15), a digital-to-analogue oscillator (18) and a transducer (14), as well as connection to synthesizer splitter regulators (crystal oscillators). 1) regulating the voltage (V) and passing to the intermittent high frequency (IF2) passing and flashing the copying synthesizing voltage regulating crystal oscillator; (16) under the standard (T) with rack (14) rack with high frequency frequency (IF2) period and with the result far or visually (M), with the D / A characteristic of the genome (18) with digital -analog-omvandling, och av att med den salunda erhallna spänningen regulatoras synthetizator spänningsreglerade kris-talloscillator (1), varvid regulleringstalet (M) i läsningslä-get inte Mndras unde r de olika räkneomgängarna.

7. Koppling enligt patentkravet 6, kännetecknad av att tiden (T) är härledd fran processorns (16) kristalloscillator (15) genom delning.7. Copying according to claim 6, which comprises the genome of the crystal oscillator (15) according to the process (16).

8. Koppling enligt patentkravet 6 eller 7, kännetecknad av att syntetisatordelens (R) spänningsreglerade kristalloscillator (1) även används som sändarsyntetisatorns referens-frekvens. 18. Copying according to claims 6 or 7, which comprises a synthesis regulator (R) spin-regulating crystal oscillator (1) according to a reference synthesizer frequency. 1

Koppling enligt nlgot av patentkraven 6-8, kännetecknad av att mottagardelens (R) lokala oscillator (10) är en frekvensstabil kristalloscillator.Copying is preferably performed according to claims 6-8, which comprises a local (O) oscillator (10) and a frequency-stable crystal oscillator.

FI864909A 1986-12-01 1986-12-01 EN BAERVAOGSREGLERANDE KOPPLING AV EN FOER EN RADIOTELEFONANORDNING AVSEDD FM-SYNTETISATOR. FI79636C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI864909A FI79636C (en) 1986-12-01 1986-12-01 EN BAERVAOGSREGLERANDE KOPPLING AV EN FOER EN RADIOTELEFONANORDNING AVSEDD FM-SYNTETISATOR.
DE19873738124 DE3738124C2 (en) 1986-12-01 1987-11-10 A circuit controlling the carrier wave of the FM synthesizer for a telephone system
SE8704385A SE467642B (en) 1986-12-01 1987-11-10 METHOD AND CONNECTION FOR EMERGENCY REGULATION OF FM SYNTHETISATOR IN RADIO PHONE SYSTEM
NO874934A NO172418C (en) 1986-12-01 1987-11-26 PROCEDURE AND SEARCH REGULATOR CONNECTION FOR AN FM SYNTHETISATOR FOR A RADIO PHONE DEVICE
DK626887A DK626887A (en) 1986-12-01 1987-11-30 PROCEDURE AND CIRCUIT FOR RESOLUTION REGULATION IN AN FM RECEIVER CALCULATED FOR A PHONE SYSTEM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI864909 1986-12-01
FI864909A FI79636C (en) 1986-12-01 1986-12-01 EN BAERVAOGSREGLERANDE KOPPLING AV EN FOER EN RADIOTELEFONANORDNING AVSEDD FM-SYNTETISATOR.

Publications (4)

Publication Number Publication Date
FI864909A0 FI864909A0 (en) 1986-12-01
FI864909A FI864909A (en) 1988-06-02
FI79636B FI79636B (en) 1989-09-29
FI79636C true FI79636C (en) 1990-01-10

Family

ID=8523587

Family Applications (1)

Application Number Title Priority Date Filing Date
FI864909A FI79636C (en) 1986-12-01 1986-12-01 EN BAERVAOGSREGLERANDE KOPPLING AV EN FOER EN RADIOTELEFONANORDNING AVSEDD FM-SYNTETISATOR.

Country Status (5)

Country Link
DE (1) DE3738124C2 (en)
DK (1) DK626887A (en)
FI (1) FI79636C (en)
NO (1) NO172418C (en)
SE (1) SE467642B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI85636C (en) * 1988-08-19 1992-05-11 Nokia Mobira Oy Procedure and switching for automatic, based on a calculator based on the frequency of a radio telephone
JPH07105822B2 (en) * 1989-08-10 1995-11-13 三菱電機株式会社 Automatic frequency controller
US5289506A (en) * 1990-02-05 1994-02-22 Sharp Kabushiki Kaisha Automatic frequency control circuit
US5107522A (en) * 1990-02-05 1992-04-21 Sharp Kabushiki Kaisha Automatic frequency control circuit
US5493700A (en) * 1993-10-29 1996-02-20 Motorola Automatic frequency control apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229741A (en) * 1979-03-12 1980-10-21 Motorola, Inc. Two-way communications system and method of synchronizing
DE3216631C2 (en) * 1982-05-04 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Oscillator circuit
GB8428159D0 (en) * 1984-11-07 1984-12-12 Sinclair Res Ltd Radio frequency synthesis

Also Published As

Publication number Publication date
DK626887D0 (en) 1987-11-30
DE3738124C2 (en) 1998-11-12
DE3738124A1 (en) 1988-06-16
FI864909A (en) 1988-06-02
NO874934L (en) 1988-06-02
NO874934D0 (en) 1987-11-26
SE8704385D0 (en) 1987-11-10
DK626887A (en) 1988-06-02
FI864909A0 (en) 1986-12-01
NO172418C (en) 1993-07-14
SE8704385L (en) 1988-06-02
SE467642B (en) 1992-08-17
NO172418B (en) 1993-04-05
FI79636B (en) 1989-09-29

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