NL7214170A - - Google Patents
Info
- Publication number
- NL7214170A NL7214170A NL7214170A NL7214170A NL7214170A NL 7214170 A NL7214170 A NL 7214170A NL 7214170 A NL7214170 A NL 7214170A NL 7214170 A NL7214170 A NL 7214170A NL 7214170 A NL7214170 A NL 7214170A
- Authority
- NL
- Netherlands
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
- H03J5/0218—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
-
- 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
- H03J5/0209—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 non preset values
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
- H03J7/10—Modification of automatic frequency control sensitivity or linearising automatic frequency control operation
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8318671A JPS4847701A (https=) | 1971-10-19 | 1971-10-19 | |
| JP8318871A JPS5148842B2 (https=) | 1971-10-19 | 1971-10-19 | |
| JP46083187A JPS5148841B2 (https=) | 1971-10-19 | 1971-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7214170A true NL7214170A (https=) | 1973-04-25 |
Family
ID=27304148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7214170A NL7214170A (https=) | 1971-10-19 | 1972-10-19 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3868609A (https=) |
| CA (1) | CA1009778A (https=) |
| DE (1) | DE2251376C3 (https=) |
| FR (1) | FR2156829B1 (https=) |
| GB (1) | GB1416447A (https=) |
| NL (1) | NL7214170A (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3906373A (en) * | 1973-02-12 | 1975-09-16 | Zenith Radio Corp | Varactor tuning system |
| GB1503334A (en) * | 1974-02-25 | 1978-03-08 | Matsushita Electric Industrial Co Ltd | Tuning apparatus using a voltage-dependent reactance element |
| JPS5415164B2 (https=) * | 1974-05-20 | 1979-06-13 | ||
| CA1180139A (en) * | 1979-09-14 | 1984-12-27 | Isao Fujimoto | Tuner apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575661A (en) * | 1968-11-05 | 1971-04-20 | Motorola Inc | Remote control tuning circuit |
| US3528043A (en) * | 1968-12-17 | 1970-09-08 | Servo Corp Of America | Voltage controllable tuning circuit which responds linearly in frequency with linear dial changes |
| US3679980A (en) * | 1969-07-07 | 1972-07-25 | Standard Kollsman Instr Corp | Solid state television tuner with voltage variable capacitors |
| US3693093A (en) * | 1969-10-07 | 1972-09-19 | Electrohome Ltd | Agc impedance converter and voltage level shifter for high impedance source |
| US3673523A (en) * | 1970-10-05 | 1972-06-27 | Electrohome Ltd | Signal translating networks and control circuits for the tuners of signal receivers |
| US3715671A (en) * | 1970-12-29 | 1973-02-06 | Gen Electric | Multiple spreadband tuning in a varactor tuned radio receiver |
-
1972
- 1972-10-18 US US298493A patent/US3868609A/en not_active Expired - Lifetime
- 1972-10-18 CA CA154,204A patent/CA1009778A/en not_active Expired
- 1972-10-18 GB GB4788672A patent/GB1416447A/en not_active Expired
- 1972-10-19 DE DE2251376A patent/DE2251376C3/de not_active Expired
- 1972-10-19 NL NL7214170A patent/NL7214170A/xx not_active Application Discontinuation
- 1972-10-19 FR FR7237076A patent/FR2156829B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2251376B2 (de) | 1980-01-24 |
| GB1416447A (en) | 1975-12-03 |
| DE2251376C3 (de) | 1980-09-18 |
| FR2156829A1 (https=) | 1973-06-01 |
| DE2251376A1 (de) | 1973-04-26 |
| US3868609A (en) | 1975-02-25 |
| CA1009778A (en) | 1977-05-03 |
| FR2156829B1 (https=) | 1978-03-03 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |