JPS579530B2 - - Google Patents
Info
- Publication number
- JPS579530B2 JPS579530B2 JP7805974A JP7805974A JPS579530B2 JP S579530 B2 JPS579530 B2 JP S579530B2 JP 7805974 A JP7805974 A JP 7805974A JP 7805974 A JP7805974 A JP 7805974A JP S579530 B2 JPS579530 B2 JP S579530B2
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
- H03L7/1075—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the loop filter, e.g. changing the gain, changing the bandwidth
Landscapes
- Filters And Equalizers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Time-Division Multiplex Systems (AREA)
- Networks Using Active Elements (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7805974A JPS579530B2 (en:Method) | 1974-07-08 | 1974-07-08 | |
| GB27644/75A GB1480544A (en) | 1974-07-08 | 1975-07-01 | Band pass filter circuit |
| US05/593,126 US3969678A (en) | 1974-07-08 | 1975-07-03 | Band pass filter circuit with automatic bandwidth adjust |
| CA230,946A CA1044339A (en) | 1974-07-08 | 1975-07-07 | Band pass filter circuit |
| DE2530467A DE2530467C3 (de) | 1974-07-08 | 1975-07-08 | Bandpaßfilter-Schaltung |
| IT68771/75A IT1036467B (it) | 1974-07-08 | 1975-07-08 | Circuito filtro passaband a variazione di larghezza di banda |
| FR7521433A FR2278197A1 (fr) | 1974-07-08 | 1975-07-08 | Circuit de filtre passe-bande |
| AU82847/75A AU501781B2 (en) | 1974-07-08 | 1975-07-08 | Bandpass filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7805974A JPS579530B2 (en:Method) | 1974-07-08 | 1974-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS517849A JPS517849A (en:Method) | 1976-01-22 |
| JPS579530B2 true JPS579530B2 (en:Method) | 1982-02-22 |
Family
ID=13651267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7805974A Expired JPS579530B2 (en:Method) | 1974-07-08 | 1974-07-08 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3969678A (en:Method) |
| JP (1) | JPS579530B2 (en:Method) |
| AU (1) | AU501781B2 (en:Method) |
| CA (1) | CA1044339A (en:Method) |
| DE (1) | DE2530467C3 (en:Method) |
| FR (1) | FR2278197A1 (en:Method) |
| GB (1) | GB1480544A (en:Method) |
| IT (1) | IT1036467B (en:Method) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1035117B (it) * | 1975-03-28 | 1979-10-20 | Selenta Ind Elettroniche Assoc | Dispositivo ad alta stabilita per il filtraggio e la discriminayione in frequenza di un segnale elettrico |
| JPS54100639A (en) * | 1978-01-26 | 1979-08-08 | Fujitsu Ltd | Band-pass filter circuit |
| DE2837538C2 (de) * | 1978-08-28 | 1982-05-19 | Gestra- KSB Vertriebsgesellschaft mbH. & Co KG, 2800 Bremen | Thermisch gesteuertes Ventil |
| DE2837537C2 (de) * | 1978-08-28 | 1983-04-28 | Gestra-KSB Vertriebsgesellschaft mbH & Co KG, 2800 Bremen | Mehrstufiges, thermostatisches Ventil |
| JPS5575361A (en) * | 1978-12-04 | 1980-06-06 | Oki Electric Ind Co Ltd | Time-division multi-direction multiple transmission system |
| JPS6063685A (ja) * | 1983-09-16 | 1985-04-12 | Nec Corp | 座標入力装置用雑音除去回路 |
| DE3402441A1 (de) * | 1984-01-25 | 1985-08-01 | Gestra Ag, 2800 Bremen | Kondensatableiter mit thermischem steuerelement |
| JPS60214617A (ja) * | 1984-04-11 | 1985-10-26 | Hitachi Ltd | フイルタ集積回路 |
| JP2560093B2 (ja) * | 1988-10-05 | 1996-12-04 | シャープ株式会社 | Ｆｍチューナ |
| DE69215118T2 (de) * | 1991-01-24 | 1997-05-22 | Philips Electronics Nv | Nichtlinearer Signalprozessor |
| US5353311A (en) * | 1992-01-09 | 1994-10-04 | Nec Corporation | Radio transmitter |
| JPH087059A (ja) * | 1994-06-21 | 1996-01-12 | Sony Chem Corp | 非接触情報カード |
| US5548398A (en) * | 1994-11-22 | 1996-08-20 | Eastman Kodak Company | Illuminant discriminator providing detection of high efficiency illumination |
| SE519372C2 (sv) * | 2001-03-09 | 2003-02-18 | Nat Semiconductor Corp | Metod och krets för filtertrimning |
| US7203474B2 (en) * | 2001-10-24 | 2007-04-10 | Rohm Co., Ltd. | Receiver system |
| CN1656699A (zh) * | 2002-05-31 | 2005-08-17 | 松下电器产业株式会社 | 具有改进的干扰抑制带宽和速度的反相滤波的自适应噪声滤波器的带宽自适应规则 |
| US7567133B2 (en) * | 2006-04-06 | 2009-07-28 | Mosaid Technologies Corporation | Phase-locked loop filter capacitance with a drag current |
| US7982547B2 (en) * | 2009-03-30 | 2011-07-19 | Infineon Technologies Ag | Phase locked loop-based tuning adjustable filter |
| CN102624360B (zh) * | 2012-04-05 | 2015-06-10 | 四川和芯微电子股份有限公司 | 具有自动调节输出信号占空比功能的倍频电路及系统 |
| CN116915223B (zh) * | 2023-08-01 | 2024-02-27 | 合芯科技(苏州)有限公司 | 一种延迟电路及滤波器 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3714588A (en) * | 1970-10-13 | 1973-01-30 | Nasa | Self tuning bandpass filter |
| US3678416A (en) * | 1971-07-26 | 1972-07-18 | Richard S Burwen | Dynamic noise filter having means for varying cutoff point |
| US3835399A (en) * | 1972-01-24 | 1974-09-10 | R Holmes | Adjustable electronic tunable filter with simulated inductor |
| JPS5641010B2 (en:Method) * | 1972-06-14 | 1981-09-25 | ||
| US3786363A (en) * | 1973-01-05 | 1974-01-15 | Us Navy | Voltage-controlled low-pass filter |
-
1974
- 1974-07-08 JP JP7805974A patent/JPS579530B2/ja not_active Expired
-
1975
- 1975-07-01 GB GB27644/75A patent/GB1480544A/en not_active Expired
- 1975-07-03 US US05/593,126 patent/US3969678A/en not_active Expired - Lifetime
- 1975-07-07 CA CA230,946A patent/CA1044339A/en not_active Expired
- 1975-07-08 FR FR7521433A patent/FR2278197A1/fr active Granted
- 1975-07-08 DE DE2530467A patent/DE2530467C3/de not_active Expired
- 1975-07-08 IT IT68771/75A patent/IT1036467B/it active
- 1975-07-08 AU AU82847/75A patent/AU501781B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2530467A1 (de) | 1976-01-29 |
| AU501781B2 (en) | 1979-06-28 |
| DE2530467C3 (de) | 1978-04-27 |
| AU8284775A (en) | 1977-01-13 |
| CA1044339A (en) | 1978-12-12 |
| IT1036467B (it) | 1979-10-30 |
| FR2278197A1 (fr) | 1976-02-06 |
| GB1480544A (en) | 1977-07-20 |
| FR2278197B1 (en:Method) | 1978-07-28 |
| DE2530467B2 (de) | 1977-08-18 |
| US3969678A (en) | 1976-07-13 |
| JPS517849A (en:Method) | 1976-01-22 |