AT346938B - Frequenzmodulator - Google Patents

Frequenzmodulator

Info

Publication number
AT346938B
AT346938B AT874575A AT874575A AT346938B AT 346938 B AT346938 B AT 346938B AT 874575 A AT874575 A AT 874575A AT 874575 A AT874575 A AT 874575A AT 346938 B AT346938 B AT 346938B
Authority
AT
Austria
Prior art keywords
frequency modulator
modulator
frequency
Prior art date
Application number
AT874575A
Other languages
English (en)
Other versions
ATA874575A (de
Original Assignee
Ampex
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 Ampex filed Critical Ampex
Publication of ATA874575A publication Critical patent/ATA874575A/de
Application granted granted Critical
Publication of AT346938B publication Critical patent/AT346938B/de

Links

Classifications

    • 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
AT874575A 1974-11-18 1975-11-17 Frequenzmodulator AT346938B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/524,656 US3944949A (en) 1974-11-18 1974-11-18 Frequency modulator

Publications (2)

Publication Number Publication Date
ATA874575A ATA874575A (de) 1978-04-15
AT346938B true AT346938B (de) 1978-12-11

Family

ID=24090135

Family Applications (1)

Application Number Title Priority Date Filing Date
AT874575A AT346938B (de) 1974-11-18 1975-11-17 Frequenzmodulator

Country Status (9)

Country Link
US (1) US3944949A (de)
JP (1) JPS5237755A (de)
AT (1) AT346938B (de)
BE (1) BE835311A (de)
CA (1) CA1060553A (de)
DE (1) DE2551785C3 (de)
FR (1) FR2291648A1 (de)
GB (1) GB1513583A (de)
NL (1) NL168381C (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643949C3 (de) * 1976-09-29 1981-06-19 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum impulsmäßigen Übertragen von analogen Spannungswerten beider Polaritäten
JPS5932163A (ja) * 1982-08-18 1984-02-21 Nec Corp Ｃｍｏｓ集積回路
DE3413143A1 (de) * 1984-04-07 1985-10-17 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Fm-modulator
DE3425671A1 (de) * 1984-07-12 1986-01-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und vorrichtung zum messen der daempfung an lichtwellenleitern
GB2189113B (en) * 1986-04-12 1990-04-25 Thorn Emi Datatech Ltd A voltage-controlled oscillator
DE4013087A1 (de) * 1990-04-25 1991-10-31 Dierk Bobzin Verfahren zur pulsbreitenmodulation/demodulation, insbesondere zur aufzeichnung von videosignalen auf magnetische und optische datentraeger (parallelmodulator)
US7106130B2 (en) * 2003-09-05 2006-09-12 Delta Electronics, Inc. Variable frequency PWM controller circuit
JP2006020171A (ja) * 2004-07-02 2006-01-19 Fujitsu Ltd 差動型コンパレータ、アナログ・デジタル変換装置、撮像装置
US20060057864A1 (en) * 2004-09-13 2006-03-16 Joseph Jeffrey A Rotative electrical coupling
TWI306326B (en) * 2006-03-10 2009-02-11 Weltrend Semiconductor Inc Pulse frequency modulation oscillating circuit for a dc/dc converter

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290617A (en) * 1962-07-09 1966-12-06 Northern Electric Co Frequency modulated relaxation oscillator
US3371291A (en) * 1965-01-11 1968-02-27 Astrodata Inc Current control of oscillator frequency
US3328724A (en) * 1966-01-26 1967-06-27 John L Way Voltage controlled free-running flip-flop oscillator
US3528036A (en) * 1968-07-12 1970-09-08 Ibm Fm modulator for video recording
US3581239A (en) * 1969-03-05 1971-05-25 Motorola Inc Frequency modulated crystal controlled oscillator operable at a plurality of temperature compensated center frequencies
JPS4866361A (de) * 1971-12-14 1973-09-11
JPS4960468A (de) * 1972-10-09 1974-06-12
US3794934A (en) * 1972-11-02 1974-02-26 Gte Sylvania Inc Non-saturating oscillator and modulator circuit
US3842371A (en) * 1973-10-12 1974-10-15 Honeywell Inc Voltage to frequency converter
JPS50156864A (de) * 1974-06-06 1975-12-18

Also Published As

Publication number Publication date
CA1060553A (en) 1979-08-14
JPS5237755A (en) 1977-03-23
NL7513453A (nl) 1976-05-20
NL168381B (nl) 1981-10-16
NL168381C (nl) 1982-03-16
BE835311A (fr) 1976-03-01
ATA874575A (de) 1978-04-15
FR2291648A1 (fr) 1976-06-11
FR2291648B1 (de) 1981-08-07
GB1513583A (en) 1978-06-07
US3944949A (en) 1976-03-16
DE2551785C3 (de) 1979-10-31
DE2551785A1 (de) 1976-05-20
DE2551785B2 (de) 1979-03-01

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Legal Events

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