IT7869197A0 - Perfezionamenti a dispositivi di selezione di segnali con memoria - Google Patents
Perfezionamenti a dispositivi di selezione di segnali con memoriaInfo
- Publication number
- IT7869197A0 IT7869197A0 IT7869197A IT6919778A IT7869197A0 IT 7869197 A0 IT7869197 A0 IT 7869197A0 IT 7869197 A IT7869197 A IT 7869197A IT 6919778 A IT6919778 A IT 6919778A IT 7869197 A0 IT7869197 A0 IT 7869197A0
- Authority
- IT
- Italy
- Prior art keywords
- memory
- signal selection
- selection devices
- devices
- signal
- Prior art date
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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1472—Control of position or direction using feedback using an analogue comparing device with potentiometer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
-
- 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
- H03J5/0218—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values
- H03J5/0227—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values using a counter
-
- 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
- H03J5/0272—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 used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
- H03J5/0281—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 used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Transceivers (AREA)
- Circuits Of Receivers In General (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT69197/78A IT1108307B (it) | 1978-09-25 | 1978-09-25 | Perfezionamenti a dispositivi di selezione di segnali con memoria |
FR7923146A FR2437111A1 (fr) | 1978-09-25 | 1979-09-17 | Dispositif selecteur de signaux a memoire |
GB7932318A GB2033179B (en) | 1978-09-25 | 1979-09-18 | R.f. signal selector |
DE19792938370 DE2938370A1 (de) | 1978-09-25 | 1979-09-22 | Schaltungsanordnung zum auswaehlen eines radiofrequenzsignales aus einem bereich von radiofrequenzsignalen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT69197/78A IT1108307B (it) | 1978-09-25 | 1978-09-25 | Perfezionamenti a dispositivi di selezione di segnali con memoria |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7869197A0 true IT7869197A0 (it) | 1978-09-25 |
IT1108307B IT1108307B (it) | 1985-12-09 |
Family
ID=11311545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT69197/78A IT1108307B (it) | 1978-09-25 | 1978-09-25 | Perfezionamenti a dispositivi di selezione di segnali con memoria |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2938370A1 (it) |
FR (1) | FR2437111A1 (it) |
GB (1) | GB2033179B (it) |
IT (1) | IT1108307B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1135476B (it) * | 1981-02-16 | 1986-08-20 | Brionvega Spa | Disposizione per l'orientamento automatico di una antenna in un radioricevitore o televisore per mezzo d'un telecomando |
US4796032A (en) * | 1985-03-25 | 1989-01-03 | Kabushiki Kaisha Toshiba | Satellite broadcasting receiving system |
DE3628535A1 (de) * | 1986-08-22 | 1988-03-03 | Vdo Schindling | Anordnung zur betaetigung eines stellgliedes |
IT1223038B (it) * | 1987-11-02 | 1990-09-12 | Brionvega Spa | Procedimento e apparecchiatura per l'invio di una molteplicita' di segnali di comando in impianti di antenna |
KR950009205B1 (ko) * | 1988-07-04 | 1995-08-16 | 삼성전자주식회사 | 위성 방송 수신기의 신호유무 채널 표시 장치 |
US5038405A (en) * | 1990-06-14 | 1991-08-06 | Karr Lawrence J | Tunable antenna apparatus and method for use with superheterodyne receivers |
JP2866775B2 (ja) * | 1991-12-26 | 1999-03-08 | 三星電子株式会社 | アンテナ移動装置及びその方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1954699A1 (de) * | 1969-10-30 | 1971-05-06 | Philips Patentverwaltung | Schaltungsanordnung zur selbsttaetigen Ausrichtung einer Empfangsantenne |
US4021714A (en) * | 1975-01-08 | 1977-05-03 | Contraves-Goerz Corporation | Servo system employing a tracking digital angle encoder |
DE2559122A1 (de) * | 1975-12-30 | 1977-07-07 | Stolle Kabel Antennen | Elektrische schaltungsanordnung zur einstellung einer antenne |
IT1071553B (it) * | 1977-02-02 | 1985-04-10 | Indesit | Circuito di regolazione |
-
1978
- 1978-09-25 IT IT69197/78A patent/IT1108307B/it active
-
1979
- 1979-09-17 FR FR7923146A patent/FR2437111A1/fr active Granted
- 1979-09-18 GB GB7932318A patent/GB2033179B/en not_active Expired
- 1979-09-22 DE DE19792938370 patent/DE2938370A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
IT1108307B (it) | 1985-12-09 |
GB2033179B (en) | 1983-06-29 |
FR2437111A1 (fr) | 1980-04-18 |
DE2938370A1 (de) | 1980-04-10 |
FR2437111B1 (it) | 1984-12-28 |
GB2033179A (en) | 1980-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950929 |