JPS5237755A - Frequency modulator - Google Patents

Frequency modulator

Info

Publication number
JPS5237755A
JPS5237755A JP50132834A JP13283475A JPS5237755A JP S5237755 A JPS5237755 A JP S5237755A JP 50132834 A JP50132834 A JP 50132834A JP 13283475 A JP13283475 A JP 13283475A JP S5237755 A JPS5237755 A JP S5237755A
Authority
JP
Japan
Prior art keywords
frequency modulator
modulator
frequency
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP50132834A
Other languages
English (en)
Inventor
Efu Haazugu Uiriamu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ampex Corp
Original Assignee
Ampex 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
Application filed by Ampex Corp filed Critical Ampex Corp
Publication of JPS5237755A publication Critical patent/JPS5237755A/ja
Pending legal-status Critical Current

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
JP50132834A 1974-11-18 1975-11-05 Frequency modulator Pending JPS5237755A (en)

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 (1)

Publication Number Publication Date
JPS5237755A true JPS5237755A (en) 1977-03-23

Family

ID=24090135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50132834A Pending JPS5237755A (en) 1974-11-18 1975-11-05 Frequency modulator

Country Status (9)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932163A (ja) * 1982-08-18 1984-02-21 Nec Corp Ｃｍｏｓ集積回路

Families Citing this family (9)

* 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
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866361A (ja) * 1971-12-14 1973-09-11
JPS4960468A (ja) * 1972-10-09 1974-06-12
JPS50156864A (ja) * 1974-06-06 1975-12-18

Family Cites Families (7)

* 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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866361A (ja) * 1971-12-14 1973-09-11
JPS4960468A (ja) * 1972-10-09 1974-06-12
JPS50156864A (ja) * 1974-06-06 1975-12-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932163A (ja) * 1982-08-18 1984-02-21 Nec Corp Ｃｍｏｓ集積回路
JPS6255309B2 (ja) * 1982-08-18 1987-11-19 Nippon Electric Co

Also Published As

Publication number Publication date
CA1060553A (en) 1979-08-14
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 (ja) 1981-08-07
GB1513583A (en) 1978-06-07
US3944949A (en) 1976-03-16
AT346938B (de) 1978-12-11
DE2551785C3 (de) 1979-10-31
DE2551785A1 (de) 1976-05-20
DE2551785B2 (de) 1979-03-01

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