ES464841A1 - Perfeccionamientos en conexiones contadoras para la determi-nacion de la frecuencia de recepcion, respectivamente del canal de recepcion en receptor de superposicion de alta fre-cuencia. - Google Patents

Perfeccionamientos en conexiones contadoras para la determi-nacion de la frecuencia de recepcion, respectivamente del canal de recepcion en receptor de superposicion de alta fre-cuencia.

Info

Publication number
ES464841A1
ES464841A1 ES77464841A ES464841A ES464841A1 ES 464841 A1 ES464841 A1 ES 464841A1 ES 77464841 A ES77464841 A ES 77464841A ES 464841 A ES464841 A ES 464841A ES 464841 A1 ES464841 A1 ES 464841A1
Authority
ES
Spain
Prior art keywords
frequency
oscillations
receiver
counting circuit
gate time
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.)
Expired
Application number
ES77464841A
Other languages
English (en)
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
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of ES464841A1 publication Critical patent/ES464841A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
    • H03J1/047—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's
    • H03J1/048—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like using electronic means, e.g. LED's with digital indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/40—Imides, e.g. polyimide [PI], polyetherimide [PEI]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)
  • Networks Using Active Elements (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Electronic Switches (AREA)

Abstract

Perfeccionamientos en conexiones contadoras para la determinación de la frecuencia de recepciónrespectivamente del canal de recepción en un receptor de superposición de alta frecuenciaen que las oscilaciones del oscilador de amplitud moduladarespectivamente de frecuencia moduladaque se diferencian por el número de las oscilaciones de la respectiva frecuenciaintermedia del número de las oscilaciones recibidasse cuentan periódicamenteen cada casodentro del tiempo de pasopreviamente dadomediante un contador electrónicoen que un número de oscilacionescorrespondiente al valor fijo previamente dado de la frecuencia intermediase resta o se suma de o a las oscilacionescorrespondiente al valor fijo previamente dado de la frecuencia moduladade modo que el estado del contador indica la frecuencia de recepciónrespectivamente el canal de recepciónespecialmente para receptores de superposición de alta frecuencia con aquellos filtros de frecuencia intermediaque están disponibles como unidades de construcción con determinados valores de frecuencia intermedia ponderadoscaracterizados porque el tiempo de paso es variable para la compensación de desviaciones de la verdadera frecuencia intermedia de la parte de frecuencia frente al valor fijoconsiderado en el proceso contador para la determinación de la frecuencia de recepción.
ES77464841A 1976-12-10 1977-12-07 Perfeccionamientos en conexiones contadoras para la determi-nacion de la frecuencia de recepcion, respectivamente del canal de recepcion en receptor de superposicion de alta fre-cuencia. Expired ES464841A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2655947A DE2655947C2 (de) 1976-12-10 1976-12-10 Zählschaltung zur Ermittlung der Empfangsfrequenz bzw. des Empfangskanals in einem Hochfrequenzüberlagerungsempfänger

Publications (1)

Publication Number Publication Date
ES464841A1 true ES464841A1 (es) 1978-09-01

Family

ID=5995153

Family Applications (1)

Application Number Title Priority Date Filing Date
ES77464841A Expired ES464841A1 (es) 1976-12-10 1977-12-07 Perfeccionamientos en conexiones contadoras para la determi-nacion de la frecuencia de recepcion, respectivamente del canal de recepcion en receptor de superposicion de alta fre-cuencia.

Country Status (14)

Country Link
US (1) US4193686A (es)
JP (1) JPS5381006A (es)
AT (1) AT374318B (es)
CH (1) CH631846A5 (es)
DE (1) DE2655947C2 (es)
DK (1) DK155263C (es)
ES (1) ES464841A1 (es)
FR (1) FR2373919A1 (es)
GB (1) GB1550587A (es)
HK (1) HK1480A (es)
IT (1) IT1088415B (es)
MY (1) MY8100007A (es)
NO (1) NO144811C (es)
SE (1) SE425535B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933416A1 (de) * 1979-08-17 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Verfahren zur automatischen zf-korrektur von rundfunkgeraeten mit digital einstellbarer empfangsrequenz
SE446232B (sv) * 1982-11-30 1986-08-18 Electrolux Ab Anordning for instellning av en sifferindikator
JPS61109684U (es) * 1984-12-20 1986-07-11
GB8612904D0 (en) * 1986-05-28 1986-07-02 Marconi Instruments Ltd Electrical apparatus
US6885853B2 (en) * 2001-04-11 2005-04-26 National Scientific Corporation Communications receiver with integrated IF filter and method therefor
US7624556B2 (en) 2003-11-25 2009-12-01 Bbv Vorspanntechnik Gmbh Threaded deformed reinforcing bar and method for making the bar
WO2011163449A1 (en) 2010-06-24 2011-12-29 Nucor Steel Birmingham, Inc. A tensionable threaded rebar bolt
US9010165B2 (en) 2011-01-18 2015-04-21 Nucor Corporation Threaded rebar manufacturing process and system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2358673B2 (de) * 1973-11-24 1977-02-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung fuer die digitale frequenzanzeige in einem rundfunkgeraet
DE2362854A1 (de) * 1973-12-18 1975-06-19 Licentia Gmbh Schaltungsanordnung zur digitalen frequenzanzeige in einem rundfunkgeraet
US3991382A (en) * 1974-06-11 1976-11-09 Sansui Electric Co., Ltd. Oscillation frequency control device for a local oscillator
DE2556486C3 (de) * 1975-12-16 1981-03-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmschaltung für Hochfrequenzempfangsgeräte

Also Published As

Publication number Publication date
FR2373919B1 (es) 1983-01-14
DE2655947B1 (de) 1978-03-09
FR2373919A1 (fr) 1978-07-07
JPS5381006A (en) 1978-07-18
NO144811C (no) 1981-11-11
JPS5713177B2 (es) 1982-03-16
SE7713976L (sv) 1978-06-11
ATA873577A (de) 1983-08-15
IT1088415B (it) 1985-06-10
HK1480A (en) 1980-01-18
CH631846A5 (de) 1982-08-31
SE425535B (sv) 1982-10-04
NO144811B (no) 1981-08-03
DK155263C (da) 1989-07-24
DK155263B (da) 1989-03-13
MY8100007A (en) 1981-12-31
DE2655947C2 (de) 1986-07-31
DK534777A (da) 1978-06-11
NO774228L (no) 1978-06-13
AT374318B (de) 1984-04-10
GB1550587A (en) 1979-08-15
US4193686A (en) 1980-03-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19910722