FR2318538B1 - - Google Patents

Info

Publication number
FR2318538B1
FR2318538B1 FR7621486A FR7621486A FR2318538B1 FR 2318538 B1 FR2318538 B1 FR 2318538B1 FR 7621486 A FR7621486 A FR 7621486A FR 7621486 A FR7621486 A FR 7621486A FR 2318538 B1 FR2318538 B1 FR 2318538B1
Authority
FR
France
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.)
Expired
Application number
FR7621486A
Other languages
French (fr)
Other versions
FR2318538A1 (fr
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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
Priority claimed from DE2531945A external-priority patent/DE2531945C3/de
Priority claimed from DE19752548762 external-priority patent/DE2548762A1/de
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2318538A1 publication Critical patent/FR2318538A1/fr
Application granted granted Critical
Publication of FR2318538B1 publication Critical patent/FR2318538B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval
    • H03M1/822—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation
    • H03M1/827—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation in which the total pulse width is distributed over multiple shorter pulse widths

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
FR7621486A 1975-07-17 1976-07-13 Montage pour la production de tensions continues a partir d'impulsions Granted FR2318538A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2531945A DE2531945C3 (de) 1975-07-17 1975-07-17 Schaltung zur Erzeugung von Gleichspannungen
DE19752548762 DE2548762A1 (de) 1975-10-31 1975-10-31 Schaltung zur erzeugung von gleichspannungen aus impulsen

Publications (2)

Publication Number Publication Date
FR2318538A1 FR2318538A1 (fr) 1977-02-11
FR2318538B1 true FR2318538B1 (enExample) 1983-02-11

Family

ID=25769168

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621486A Granted FR2318538A1 (fr) 1975-07-17 1976-07-13 Montage pour la production de tensions continues a partir d'impulsions

Country Status (8)

Country Link
US (1) US4087813A (enExample)
JP (1) JPS5211856A (enExample)
FR (1) FR2318538A1 (enExample)
GB (1) GB1553697A (enExample)
HK (1) HK21180A (enExample)
IT (1) IT1062107B (enExample)
MY (1) MY8100048A (enExample)
NL (1) NL7607921A (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608268C2 (de) * 1976-02-28 1978-04-13 Deutsche Itt Industries Gmbh, 7800 Freiburg Verfahren zum Erzeugen einer veränderbaren Folge von Impulsen und Schaltungsanordnung zur Durchführung des Verfahrens
JPS547263A (en) * 1977-06-20 1979-01-19 Hitachi Ltd D-a converter
JPS6013583B2 (ja) * 1977-09-29 1985-04-08 松下電器産業株式会社 Ｄ−ａ変換装置
US4364026A (en) * 1979-11-30 1982-12-14 Rca Corporation Digital-to-analog converter useful in a television receiver
JPS58121827A (ja) * 1982-01-14 1983-07-20 Nec Corp パルス発生回路
JPS63246928A (ja) * 1987-04-02 1988-10-13 Nippon Precision Saakitsutsu Kk Ｄ／ａ変換装置
US4940979A (en) * 1988-04-26 1990-07-10 Hewlett-Packard Company Combined rate/width modulation arrangement
EP0406469B1 (de) * 1989-07-06 1995-09-27 Deutsche ITT Industries GmbH Digitale Steuerschaltung für Abstimmsysteme
DE3933491A1 (de) * 1989-10-06 1991-04-18 Endress Hauser Gmbh Co Anordnung zur umwandlung einer elektrischen eingangsgroesse in ein dazu proportionales elektrisches gleichsignal
FR2670307A1 (fr) * 1990-12-11 1992-06-12 Oberthur Ckd Dispositif generateur de tension de programmation pour carte a memoire et procede d'etalonnage d'un tel dispositif.
DE4106431C1 (enExample) * 1991-02-26 1992-02-20 Siemens Ag, 8000 Muenchen, De
GB2330707B (en) * 1997-10-23 2001-10-24 Nokia Mobile Phones Ltd Digital to analogue converter
US6879201B1 (en) * 2002-04-01 2005-04-12 Xilinx, Inc. Glitchless pulse generator
US7855669B2 (en) 2008-09-26 2010-12-21 Silicon Laboratories, Inc. Circuit device to generate a high precision control signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954165A (en) * 1956-04-20 1960-09-27 Bell Telephone Labor Inc Cyclic digital decoder
US3603977A (en) * 1969-06-19 1971-09-07 Westinghouse Electric Corp Digital-to-analog converter utilizing pulse duration modulation
US3668560A (en) * 1970-07-09 1972-06-06 Research Corp Pulse-width frequency modulation device
US3629710A (en) * 1970-12-16 1971-12-21 Beckman Instruments Inc Digitally controlled pulse generator
US3681707A (en) * 1971-04-27 1972-08-01 Autech Corp Digital adf tuning indicator
DE2317851B2 (de) * 1973-04-10 1975-04-24 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig, 8510 Fuerth Digital-Analog-Wandler
US3942171A (en) * 1974-04-03 1976-03-02 Texas Instruments Incorporated Scanning system for digital-analog converter

Also Published As

Publication number Publication date
FR2318538A1 (fr) 1977-02-11
MY8100048A (en) 1981-12-31
NL7607921A (nl) 1977-01-19
GB1553697A (en) 1979-10-03
JPS5211856A (en) 1977-01-29
HK21180A (en) 1980-04-25
IT1062107B (it) 1983-06-25
US4087813A (en) 1978-05-02

Similar Documents

Publication Publication Date Title
JPS5729630B2 (enExample)
FR2317474B1 (enExample)
FR2318538B1 (enExample)
JPS5746690B2 (enExample)
JPS5237074U (enExample)
JPS5196168A (enExample)
JPS51115594U (enExample)
JPS51159634U (enExample)
JPS5529772Y2 (enExample)
JPS5438415Y2 (enExample)
JPS5349667Y1 (enExample)
JPS5255487U (enExample)
JPS5254467U (enExample)
JPS51144787U (enExample)
IN145190B (enExample)
CS176070B1 (enExample)
JPS5268149U (enExample)
CS175278B1 (enExample)
CS174719B1 (enExample)
CS174076B1 (enExample)
CS174020B1 (enExample)
CS173393B1 (enExample)
CH615071GA3 (enExample)
CH603736A5 (enExample)
CH597982A5 (enExample)

Legal Events

Date Code Title Description
ST Notification of lapse