NL179962B - Amplitude/frequentieomzetter. - Google Patents
Amplitude/frequentieomzetter.Info
- Publication number
- NL179962B NL179962B NLAANVRAGE7317084,A NL7317084A NL179962B NL 179962 B NL179962 B NL 179962B NL 7317084 A NL7317084 A NL 7317084A NL 179962 B NL179962 B NL 179962B
- Authority
- NL
- Netherlands
- Prior art keywords
- amplitude
- frequency converter
- converter
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic 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
- H03J7/08—Automatic 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 varactors, i.e. voltage variable reactive diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
- H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
- H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
- H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
- H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
- H03J7/26—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/06—Frequency or rate modulation, i.e. PFM or PRM
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
- Analogue/Digital Conversion (AREA)
- Measurement Of Current Or Voltage (AREA)
- Manipulation Of Pulses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7247081A FR2212987A5 (nl) | 1972-12-29 | 1972-12-29 | |
US367610A US3878467A (en) | 1972-12-29 | 1973-06-06 | Tuning system for AM/FM receivers |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7317084A NL7317084A (nl) | 1974-07-02 |
NL179962B true NL179962B (nl) | 1986-07-01 |
NL179962C NL179962C (nl) | 1986-12-01 |
Family
ID=26217497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7317084,A NL179962C (nl) | 1972-12-29 | 1973-12-13 | Amplitude/frequentieomzetter. |
Country Status (7)
Country | Link |
---|---|
US (2) | US3878467A (nl) |
JP (2) | JPS509361A (nl) |
CA (1) | CA1051567A (nl) |
DE (2) | DE2364517C2 (nl) |
FR (1) | FR2212987A5 (nl) |
GB (1) | GB1427443A (nl) |
NL (1) | NL179962C (nl) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51109708A (en) * | 1975-03-20 | 1976-09-28 | Matsushita Electric Ind Co Ltd | Rajiojushinki |
US4135158A (en) * | 1975-06-02 | 1979-01-16 | Motorola, Inc. | Universal automotive electronic radio |
DE2539194A1 (de) * | 1975-09-03 | 1977-03-10 | Siemens Ag | Schaltungsanordnung zur auswertung von elektrischen ausgangssignalen eines detektors fuer dickenaenderungen einer kraftstoffeinspritzleitung |
GB1570607A (en) * | 1976-04-22 | 1980-07-02 | Ml Eng Plymouth | Timing unit |
USRE30764E (en) * | 1976-06-29 | 1981-10-06 | The Perkin-Elmer Corporation | Electrical output peak detecting apparatus |
US4086651A (en) * | 1976-06-29 | 1978-04-25 | The Perkin-Elmer Corporation | Electrical output peak detecting apparatus |
US4047111A (en) * | 1976-07-19 | 1977-09-06 | General Motors Corporation | Tuning system for AM/FM receivers |
US4187439A (en) * | 1976-12-07 | 1980-02-05 | The Cessna Aircraft Company | Analog control of pulse rates |
JPS5396431A (en) * | 1977-02-04 | 1978-08-23 | Pioneer Electronic Corp | Cyclic voltage conversion device |
US4309692A (en) * | 1978-11-14 | 1982-01-05 | Beckman Instruments, Inc. | Integrating analog-to-digital converter |
DE2952156A1 (de) * | 1979-12-22 | 1981-07-16 | Robert Bosch Gmbh, 7000 Stuttgart | Spannungs-frequenz-wandler, insbesondere fuer die verwendung in elektrischen steuersystemen von kraftfahrzeugen |
US4389583A (en) * | 1981-06-08 | 1983-06-21 | W. H. Brady Co. | Capacitance switch detection circuitry |
GB2107950B (en) * | 1981-10-15 | 1985-04-17 | Standard Telephones Cables Ltd | Analogue pulse-density modulator |
US4498020A (en) * | 1981-10-19 | 1985-02-05 | Texas Instruments Incorporated | Current to frequency converter |
US4695742A (en) * | 1983-05-09 | 1987-09-22 | Sangamo Weston, Inc. | Charge balance voltage-to-frequency converter utilizing CMOS circuitry |
JPS60259984A (ja) * | 1984-06-06 | 1985-12-23 | Matsushita Electric Ind Co Ltd | 制御装置 |
US4837852A (en) * | 1985-06-17 | 1989-06-06 | Toko, Inc. | Electronic tuning circuit for AM receiver which is easy to effect tracking adjustment |
US4742251A (en) * | 1985-08-12 | 1988-05-03 | Silicon Systems, Inc. | Precise call progress detector |
ATE51118T1 (de) * | 1986-02-10 | 1990-03-15 | Landis & Gyr Ag | Verfahren und einrichtung zur umwandlung eines elektrischen signals in eine proportionale frequenz. |
FR2602105A1 (fr) * | 1986-07-25 | 1988-01-29 | Thomson Csf | Dispositif de modulation de frequence a correction dynamique de linearite et emetteur comportant un tel dispositif |
US4783849A (en) * | 1986-11-26 | 1988-11-08 | Rca Licensing Corporation | FET tuner |
JPH0199096U (nl) * | 1987-12-24 | 1989-07-03 | ||
DE3800265A1 (de) * | 1988-01-08 | 1989-07-20 | Philips Patentverwaltung | Spannungs-frequenz-umsetzer und seine verwendung in einer lichtwellenleiter-uebertragungsanordnung |
US5243356A (en) * | 1988-08-05 | 1993-09-07 | Seiko Epson Corporation | Antenna circuit and wrist radio instrument |
DE19515487C2 (de) * | 1995-04-27 | 2002-05-16 | W A Halang | Spannungs-Frequenz-Umsetzer für bipolare Eingangsspannungen |
GB2337649B (en) * | 1998-05-23 | 2000-06-07 | Plessey Telecomm | Voltage-controlled oscillator |
DE102005046959A1 (de) * | 2005-09-30 | 2007-04-05 | Siemens Ag | Frequenzmodulationsschaltkreis zum Ansteuern einer Nutzschaltung |
DE102012205154A1 (de) | 2011-03-29 | 2012-10-04 | Continental Teves Ag & Co. Ohg | Einrichtung zum Messen einer Versorgungsspannung in Elektrofahrzeugen |
CN102902393B (zh) * | 2011-07-29 | 2015-11-25 | 宸鸿光电科技股份有限公司 | 检测电极阵列控制电路、控制方法及其触控检测系统 |
US9484944B2 (en) * | 2014-07-11 | 2016-11-01 | Qualcomm Incorporated | Current counting analog-to-digital converter for load current sensing including dynamically biased comparator |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2907876A (en) * | 1954-07-15 | 1959-10-06 | Cgs Lab Inc | Radio receiver in which signal tuned circuits are controlled by remotely tuned local oscillator |
DE1238068B (de) * | 1965-08-12 | 1967-04-06 | Siemens Ag | Verfahren zur Spannungs-Frequenz-Umsetzung |
US3419784A (en) * | 1966-12-05 | 1968-12-31 | Elliott Brothers London Ltd | Magnitude-to-frequency converters |
NL6617415A (nl) * | 1966-12-12 | 1968-06-13 | ||
US3581221A (en) * | 1968-04-29 | 1971-05-25 | Edward J Martin Jr | Flexible amplification system |
US3568007A (en) * | 1969-01-21 | 1971-03-02 | Jesse H Miner | Filter and substitute for resonant reed relay |
US3657654A (en) * | 1969-09-11 | 1972-04-18 | Gen Instrument Corp | Communications receiver employing varactor controlled tuning stages |
DE2057856C3 (de) * | 1970-11-25 | 1975-11-20 | Dirk Dipl.-Ing. 3000 Hannover Rotthaus | Schaltungsanordnung zur Umwandlung einer elektrischen Spannung in eine der Spannung proportionale Frequenz |
US3720846A (en) * | 1971-06-04 | 1973-03-13 | Servomex Controls Ltd | Integrating amplifier circuits |
US3727139A (en) * | 1971-08-10 | 1973-04-10 | Philco Ford Corp | Voltage supply for voltage variable capacitor diode tuning |
US3743943A (en) * | 1971-12-22 | 1973-07-03 | Gen Motors Corp | Apparatus for supplying a tuning voltage to an electronically tuned fm radio receiver from the oscillator of an am radio receiver |
-
1972
- 1972-12-29 FR FR7247081A patent/FR2212987A5/fr not_active Expired
-
1973
- 1973-06-06 US US367610A patent/US3878467A/en not_active Expired - Lifetime
- 1973-12-10 GB GB5702673A patent/GB1427443A/en not_active Expired
- 1973-12-13 US US05/424,202 patent/US3968447A/en not_active Expired - Lifetime
- 1973-12-13 NL NLAANVRAGE7317084,A patent/NL179962C/nl not_active IP Right Cessation
- 1973-12-24 DE DE2364517A patent/DE2364517C2/de not_active Expired
- 1973-12-28 JP JP49004396A patent/JPS509361A/ja active Pending
-
1974
- 1974-04-02 CA CA196,575A patent/CA1051567A/en not_active Expired
- 1974-06-03 JP JP6196974A patent/JPS57694B2/ja not_active Expired
- 1974-06-06 DE DE19742427304 patent/DE2427304A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1427443A (en) | 1976-03-10 |
DE2364517C2 (de) | 1986-12-04 |
US3878467A (en) | 1975-04-15 |
JPS509361A (nl) | 1975-01-30 |
CA1051567A (en) | 1979-03-27 |
NL179962C (nl) | 1986-12-01 |
FR2212987A5 (nl) | 1974-07-26 |
JPS57694B2 (nl) | 1982-01-07 |
US3968447A (en) | 1976-07-06 |
JPS5023515A (nl) | 1975-03-13 |
DE2427304A1 (de) | 1975-01-02 |
NL7317084A (nl) | 1974-07-02 |
DE2364517A1 (de) | 1974-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
V1 | Lapsed because of non-payment of the annual fee |