JPS5227969B1 - - Google Patents
Info
- Publication number
- JPS5227969B1 JPS5227969B1 JP46097775A JP9777571A JPS5227969B1 JP S5227969 B1 JPS5227969 B1 JP S5227969B1 JP 46097775 A JP46097775 A JP 46097775A JP 9777571 A JP9777571 A JP 9777571A JP S5227969 B1 JPS5227969 B1 JP S5227969B1
- Authority
- JP
- Japan
- 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
Classifications
-
- 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
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9508270A | 1970-12-04 | 1970-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5227969B1 true JPS5227969B1 (ja) | 1977-07-23 |
Family
ID=22249397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP46097775A Pending JPS5227969B1 (ja) | 1970-12-04 | 1971-12-03 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3697885A (ja) |
| JP (1) | JPS5227969B1 (ja) |
| AT (1) | AT337255B (ja) |
| BE (1) | BE776177A (ja) |
| CA (1) | CA942390A (ja) |
| ES (1) | ES397699A1 (ja) |
| FR (1) | FR2116432B1 (ja) |
| GB (1) | GB1375978A (ja) |
| IT (1) | IT941957B (ja) |
| NL (1) | NL7116659A (ja) |
| SE (1) | SE375208B (ja) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL165013C (nl) * | 1971-02-19 | 1981-02-16 | Matsushita Electric Ind Co Ltd | Spanningsgeheugeninrichting en automatische afsteminrichting voorzien van een diode met variabele capaciteit in een resonantieketen. |
| GB1409798A (en) * | 1971-09-25 | 1975-10-15 | Matsushita Electric Ind Co Ltd | Frequency control arrangements |
| US3784917A (en) * | 1972-12-15 | 1974-01-08 | Philco Ford Corp | Constant lock-in range automatic frequency control |
| JPS5325444B2 (ja) * | 1973-01-23 | 1978-07-27 | ||
| JPS531125B2 (ja) * | 1973-11-17 | 1978-01-14 | ||
| US3980968A (en) * | 1975-01-02 | 1976-09-14 | Zenith Radio Corporation | Non-proportionate AFC system |
| US4110693A (en) * | 1977-01-24 | 1978-08-29 | Rca Corporation | Lockup inhibiting arrangement for a phase locked loop tuning system |
| DE2904045C2 (de) * | 1979-02-02 | 1982-04-15 | Siemens AG, 1000 Berlin und 8000 München | Quarzoszillator mit gemischt induktiver und kapazitiver Schwingfrequenzsteuerung |
| US4271533A (en) * | 1979-07-11 | 1981-06-02 | Gte Products Corporation | AFC Interface circuit |
| NL8503274A (nl) * | 1985-11-27 | 1987-06-16 | Philips Nv | Ontvanger voorzien van een automatische frequentieregellus. |
| JP2628757B2 (ja) * | 1989-07-31 | 1997-07-09 | シャープ株式会社 | フェイズロックドループ発振回路 |
| GB9006919D0 (en) * | 1990-03-28 | 1990-05-23 | Panther Giles | Paging receiver |
| JP3234527B2 (ja) * | 1997-03-28 | 2001-12-04 | 三洋電機株式会社 | ラジオ受信機 |
| US6882237B2 (en) * | 2003-04-30 | 2005-04-19 | Zarlink Semiconductor Inc. | Capture range control mechanism for voltage controlled oscillators |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1153097B (de) * | 1962-06-29 | 1963-08-22 | Telefunken Patent | Einrichtung zur selbsttaetigen Scharf-abstimmung mittels einer Kapazitaetsdiode |
| DE1234278B (de) * | 1965-09-15 | 1967-02-16 | Itt Ind Ges Mit Beschraenkter | Schaltungsanordnung zur automatischen Scharfabstimmung von Schwingkreisen |
| GB1201385A (en) * | 1966-08-30 | 1970-08-05 | Matsushita Electric Ind Co Ltd | Tuner for television receiver |
| US3440544A (en) * | 1966-11-01 | 1969-04-22 | Motorola Inc | Manual,automatic,and semiautomatic tuning circuits utilizing voltage variable capacitance diodes |
-
1970
- 1970-12-04 US US95082A patent/US3697885A/en not_active Expired - Lifetime
-
1971
- 1971-11-16 CA CA127,842A patent/CA942390A/en not_active Expired
- 1971-11-29 AT AT1027771A patent/AT337255B/de not_active IP Right Cessation
- 1971-11-30 FR FR7142909A patent/FR2116432B1/fr not_active Expired
- 1971-12-01 GB GB5571171A patent/GB1375978A/en not_active Expired
- 1971-12-02 IT IT31953/71A patent/IT941957B/it active
- 1971-12-02 BE BE776177A patent/BE776177A/xx unknown
- 1971-12-03 NL NL7116659A patent/NL7116659A/xx unknown
- 1971-12-03 SE SE7115540A patent/SE375208B/xx unknown
- 1971-12-03 JP JP46097775A patent/JPS5227969B1/ja active Pending
- 1971-12-04 ES ES397699A patent/ES397699A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE375208B (ja) | 1975-04-07 |
| DE2159126B2 (de) | 1973-06-20 |
| IT941957B (it) | 1973-03-10 |
| ATA1027771A (de) | 1976-10-15 |
| NL7116659A (ja) | 1972-06-06 |
| DE2159126A1 (de) | 1972-06-08 |
| FR2116432B1 (ja) | 1976-04-02 |
| US3697885A (en) | 1972-10-10 |
| FR2116432A1 (ja) | 1972-07-13 |
| BE776177A (fr) | 1972-04-04 |
| GB1375978A (en) | 1974-12-04 |
| CA942390A (en) | 1974-02-19 |
| AT337255B (de) | 1977-06-27 |
| ES397699A1 (es) | 1974-05-16 |