DE1916834A1 - Elektronische Sendersuchlaufautomatik fuer einen Rundfunkempfaenger - Google Patents
Elektronische Sendersuchlaufautomatik fuer einen RundfunkempfaengerInfo
- Publication number
- DE1916834A1 DE1916834A1 DE19691916834 DE1916834A DE1916834A1 DE 1916834 A1 DE1916834 A1 DE 1916834A1 DE 19691916834 DE19691916834 DE 19691916834 DE 1916834 A DE1916834 A DE 1916834A DE 1916834 A1 DE1916834 A1 DE 1916834A1
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- tuning
- changing
- stages
- switching
- 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.)
- Pending
Links
- 238000009966 trimming Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
- H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
- H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691916834 DE1916834A1 (de) | 1969-04-02 | 1969-04-02 | Elektronische Sendersuchlaufautomatik fuer einen Rundfunkempfaenger |
| AT296670A AT294190B (de) | 1969-04-02 | 1970-04-01 | Elektronische Sendersuchlaufautomatik für einen Rundfunkempfänger |
| US24513A US3671870A (en) | 1969-04-02 | 1970-04-01 | Tuning system for communication receivers storing predetermined tuning positions within the receiver frequency band |
| FR7012003A FR2046175A5 (enExample) | 1969-04-02 | 1970-04-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691916834 DE1916834A1 (de) | 1969-04-02 | 1969-04-02 | Elektronische Sendersuchlaufautomatik fuer einen Rundfunkempfaenger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1916834A1 true DE1916834A1 (de) | 1970-10-15 |
Family
ID=5730091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691916834 Pending DE1916834A1 (de) | 1969-04-02 | 1969-04-02 | Elektronische Sendersuchlaufautomatik fuer einen Rundfunkempfaenger |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3671870A (enExample) |
| AT (1) | AT294190B (enExample) |
| DE (1) | DE1916834A1 (enExample) |
| FR (1) | FR2046175A5 (enExample) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2026107C3 (de) * | 1969-05-29 | 1975-05-15 | Rca Corp | Kanalwähleinrichtung für einen Fernsehempfänger |
| US3893032A (en) * | 1970-12-28 | 1975-07-01 | Matsushita Electric Industrial Co Ltd | Channel selection device |
| JPS523522B1 (enExample) * | 1971-07-20 | 1977-01-28 | ||
| US3869672A (en) * | 1972-05-13 | 1975-03-04 | Int Standard Electric Corp | Method and arrangements for the digital control of operating functions, radio and television receivers |
| NL7414564A (nl) * | 1973-11-16 | 1975-05-21 | Int Standard Electric Corp | Radio- of televisieontvanger met een zender- zoekinrichting. |
| DE2437974C3 (de) * | 1974-08-07 | 1979-04-26 | Texas Instruments Deutschland Gmbh, 8050 Freising | Kanalsuch- und Kanalwählanordnung |
| DE2541299B2 (de) * | 1975-09-16 | 1978-05-18 | Texas Instruments Deutschland Gmbh, 8050 Freising | Schaltung zur Erzeugung einer treppenförmigen Abstimmspannung zum Abstimmen eines Empfängers |
| US4236182A (en) * | 1977-04-30 | 1980-11-25 | Sharp Kabushiki Kaisha | Automatic pre-programming system for TV receivers |
| US4271528A (en) * | 1979-09-17 | 1981-06-02 | Gte Products Corporation | Variable pulse tuning system |
| US5262769A (en) * | 1990-04-23 | 1993-11-16 | Reach Electronics, Inc. | Programmed scanning pager receiver |
| US5877701A (en) * | 1995-09-26 | 1999-03-02 | Nec Corporation | Radio pager reporting frequency band information |
| KR100735946B1 (ko) * | 1999-12-23 | 2007-07-06 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 이미지 리젝션 |
| JP5974674B2 (ja) * | 2012-06-27 | 2016-08-23 | 富士電機株式会社 | スイッチング電源装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293572A (en) * | 1964-06-26 | 1966-12-20 | Devenco Inc | Electrically variable resonant circuit controlled by the frequency of a separate pilot input signal |
| US3492584A (en) * | 1965-12-27 | 1970-01-27 | Victor Company Of Japan | Automatic tuning system utilizing sweep frequency means driven by d.c. control signals |
| US3482109A (en) * | 1966-02-23 | 1969-12-02 | Burroughs Corp | Variable count magnetic core |
| US3528015A (en) * | 1967-05-08 | 1970-09-08 | Electrohome Ltd | Automatic motor turn-on networks for signal seeking receivers |
| US3550009A (en) * | 1968-04-01 | 1970-12-22 | Gen Dynamics Corp | Automatic tuning system responsive to passband skirts |
| US3575661A (en) * | 1968-11-05 | 1971-04-20 | Motorola Inc | Remote control tuning circuit |
-
1969
- 1969-04-02 DE DE19691916834 patent/DE1916834A1/de active Pending
-
1970
- 1970-04-01 AT AT296670A patent/AT294190B/de not_active IP Right Cessation
- 1970-04-01 US US24513A patent/US3671870A/en not_active Expired - Lifetime
- 1970-04-02 FR FR7012003A patent/FR2046175A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT294190B (de) | 1971-11-10 |
| US3671870A (en) | 1972-06-20 |
| FR2046175A5 (enExample) | 1971-03-05 |
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