ES456643A1 - Sistema electronico de sintonizacion con memorizacion nume- rica de las estaciones de radiodifusion. - Google Patents

Sistema electronico de sintonizacion con memorizacion nume- rica de las estaciones de radiodifusion.

Info

Publication number
ES456643A1
ES456643A1 ES456643A ES456643A ES456643A1 ES 456643 A1 ES456643 A1 ES 456643A1 ES 456643 A ES456643 A ES 456643A ES 456643 A ES456643 A ES 456643A ES 456643 A1 ES456643 A1 ES 456643A1
Authority
ES
Spain
Prior art keywords
digital
output
counter
analog converter
electronic tuning
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
ES456643A
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.)
Voxson SpA
Original Assignee
Voxson SpA
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 Voxson SpA filed Critical Voxson SpA
Publication of ES456643A1 publication Critical patent/ES456643A1/es
Expired 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
    • H03J5/0263—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 the digital values being held in an auxiliary non erasable memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

Sistema electrónico de sintonización con memorización numérica de las estaciones radiodifusión, caracterizado porque incluye un dispositivo de control manual para generar una tensión de control variable; un generador de impulsos de ritmo; un dispositivo contador para efectuar el recuento de dichos impulsos de ritmo, un convertidor numérico-analógico asociado con dicho dispositivo al dispositivo de sintonización del receptor de radio, estando la salida de dicho convertidor igualmente conectada a una primera entrada de un comparador de tensión, cuya otra entrada está conectada con dicho dispositivo de control manual que produce dicha tensión de control, estando la tensión de salida procedente de dicho comparador conectada con un circuito de puerta dispuesto para interrumpir el suministro de dichos impulsos de ritmo a dicho dispositivo contador, y un dispositivo numérico de memoria asociado con las salidas de dicho contador y con las entradas de dicho convertidor numérico-analógico, previsto para memorizar los recuentos que corresponden respectivamente a las tensiones de control y por tanto a las estaciones de radiodifusión.
ES456643A 1976-03-09 1977-03-08 Sistema electronico de sintonizacion con memorizacion nume- rica de las estaciones de radiodifusion. Expired ES456643A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48484/76A IT1064110B (it) 1976-03-09 1976-03-09 Sistema di sintonia elettronica con memorizzazione digitale delle stazioni radio emittenti

Publications (1)

Publication Number Publication Date
ES456643A1 true ES456643A1 (es) 1978-01-16

Family

ID=11266833

Family Applications (1)

Application Number Title Priority Date Filing Date
ES456643A Expired ES456643A1 (es) 1976-03-09 1977-03-08 Sistema electronico de sintonizacion con memorizacion nume- rica de las estaciones de radiodifusion.

Country Status (16)

Country Link
US (1) US4119915A (es)
JP (1) JPS52110501A (es)
AT (1) AT368328B (es)
AU (1) AU511348B2 (es)
BE (1) BE852202A (es)
CH (1) CH618818A5 (es)
DE (1) DE2709209A1 (es)
DK (1) DK101877A (es)
ES (1) ES456643A1 (es)
FR (1) FR2344182A1 (es)
GB (1) GB1554038A (es)
IT (1) IT1064110B (es)
NL (1) NL7702385A (es)
NO (1) NO147498C (es)
PT (1) PT66266B (es)
SE (1) SE415815B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1061633B (it) * 1976-05-03 1983-04-30 Voxson Spa Radiori cevitore o sintonizzatore munito di mezzi di memorizzazione a stato solido per una molteplicita di frequenze di ricezione
JPS6057768B2 (ja) * 1978-04-21 1985-12-17 株式会社東芝 電子選局装置
FI912875L (fi) * 1991-06-14 1992-12-15 Nokia Mobile Phones Ltd Inskrivning av program i en radiotelefon

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL166828C (nl) * 1971-05-08 1981-09-15 Matsushita Electric Industrial Co Ltd Automatische kanaalkies-inrichting.
US3737787A (en) * 1971-06-29 1973-06-05 Gen Electric Electronic signal seeking system with rapid scan
US3822405A (en) * 1971-12-10 1974-07-02 Matsushita Electric Industrial Co Ltd Channel selecting apparatus
FR2175671B1 (es) * 1972-03-17 1977-04-01 Trt Telecom Radio Electr
US3999131A (en) * 1972-11-14 1976-12-21 Tokyo Shibaura Electric Co., Ltd. Channel-selecting apparatus for multichannel receivers
NL7414564A (nl) * 1973-11-16 1975-05-21 Int Standard Electric Corp Radio- of televisieontvanger met een zender- zoekinrichting.
US3978411A (en) * 1973-11-30 1976-08-31 Matsushita Electric Industrial Co., Ltd. Sweep output generator having a frequency modulated local oscillator for the station selector of a television receiver
GB1503334A (en) * 1974-02-25 1978-03-08 Matsushita Electric Industrial Co Ltd Tuning apparatus using a voltage-dependent reactance element
US3943449A (en) * 1974-09-09 1976-03-09 Zenith Radio Corporation Multi-speed ramp for a varactor tuning system

Also Published As

Publication number Publication date
DE2709209A1 (de) 1977-09-22
GB1554038A (en) 1979-10-17
DK101877A (da) 1977-09-10
JPS52110501A (en) 1977-09-16
CH618818A5 (es) 1980-08-15
SE415815B (sv) 1980-10-27
FR2344182B1 (es) 1981-08-14
IT1064110B (it) 1985-02-18
NO147498C (no) 1983-04-20
NO147498B (no) 1983-01-10
PT66266A (en) 1977-04-01
NL7702385A (nl) 1977-09-13
AT368328B (de) 1982-10-11
AU511348B2 (en) 1980-08-14
US4119915A (en) 1978-10-10
ATA152577A (de) 1982-01-15
NO770770L (no) 1977-09-12
PT66266B (en) 1978-08-08
SE7702584L (sv) 1977-09-10
BE852202A (fr) 1977-07-01
AU2278577A (en) 1978-09-07
FR2344182A1 (fr) 1977-10-07

Similar Documents

Publication Publication Date Title
GB1363048A (en) Pulse tuning control system for radio broadcast receivers
ES414286A1 (es) Un dispositivo receptor de control remoto de senales ultra-sonicas.
GB1491899A (en) Signal generator arrangement
ES456643A1 (es) Sistema electronico de sintonizacion con memorizacion nume- rica de las estaciones de radiodifusion.
GB1526338A (en) Superheterodyne receivers
GB1075386A (en) Improvements in and relating to pulse modulation radio transmission systems
ES482039A1 (es) Mejoras en disposiciones generadoras de frecuencias multipleseleccionables de transmisor y receptor de radio.
US4245351A (en) AFT Arrangement for a phase locked loop tuning system
GB1416261A (en) System for the transmission of data elements by linear frequency modulation
GB1329939A (en) Tuning indication for radio-frequency equipment
US3869672A (en) Method and arrangements for the digital control of operating functions, radio and television receivers
GB1068288A (en) Improvements in or relating to ionosphere sounder systems
GB2030019A (en) Tunning sound generator used with frequency synthesizer tuner
US3946321A (en) Digital encoder
ES458384A1 (es) Receptor de radio o sintonizador.
CA1099412A (en) Digital-to-analog converter
NL7515098A (en) Radio receiver automatic tuner - has tuning circuit with variable reactance and variable voltage generator (NL290676)
ES8101343A1 (es) Disposicion de conexion de sintonizacion para receptores de radio o television
CA1144993A (en) Delay circuit
SU720666A1 (ru) Устройство автоподстройки частоты гетеродина
GB1482089A (en) Automatic frequency control
SU462283A1 (ru) Многоканальное устройство дл преобразовани частотных сигналов в цифровой код
JPS53103308A (en) Control signal generator circuit
SU516200A1 (ru) Устройство дл автоматического выбора диапазона
JPS5486291A (en) Radio direction detector