CA1080815A - Automatic level control circuit - Google Patents
Automatic level control circuitInfo
- Publication number
- CA1080815A CA1080815A CA244,611A CA244611A CA1080815A CA 1080815 A CA1080815 A CA 1080815A CA 244611 A CA244611 A CA 244611A CA 1080815 A CA1080815 A CA 1080815A
- Authority
- CA
- Canada
- Prior art keywords
- output
- signal
- control circuit
- level control
- gain
- 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.)
- Expired
Links
- 230000036039 immunity Effects 0.000 claims abstract description 6
- 230000004044 response Effects 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 7
- 230000011664 signaling Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 18
- 230000008859 change Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/001—Digital control of analog signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/569,810 US3969683A (en) | 1975-04-21 | 1975-04-21 | Automatic level control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1080815A true CA1080815A (en) | 1980-07-01 |
Family
ID=24276956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA244,611A Expired CA1080815A (en) | 1975-04-21 | 1976-01-30 | Automatic level control circuit |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3969683A (enExample) |
| JP (1) | JPS51128248A (enExample) |
| CA (1) | CA1080815A (enExample) |
| DE (1) | DE2617114C2 (enExample) |
| FR (1) | FR2308972A1 (enExample) |
| GB (1) | GB1530183A (enExample) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064480A (en) * | 1975-11-10 | 1977-12-20 | Texaco Inc. | Means and method for recording seismic signals |
| JPS52110557A (en) * | 1976-03-12 | 1977-09-16 | Matsushita Graphic Communic | Agc circuit |
| US4066977A (en) * | 1976-03-30 | 1978-01-03 | E-Systems, Inc. | Digitized AGC amplifier with gain hysteresis circuit |
| US4028534A (en) * | 1976-04-14 | 1977-06-07 | The United States Of America As Represented By The Secretary Of The Army | Automatic span circuit |
| US4070632A (en) * | 1976-09-22 | 1978-01-24 | Tuttle John R | Discrete-gain output limiter |
| JPS5368551A (en) * | 1976-12-01 | 1978-06-19 | Hitachi Ltd | Automatic bange switching circuit |
| US4075573A (en) * | 1977-01-05 | 1978-02-21 | Motorola, Inc. | Incremental agc signal generator with controllable increments |
| JPS54149452A (en) * | 1978-05-15 | 1979-11-22 | Matsushita Electric Ind Co Ltd | Signal level adjustment unit |
| JPS6033011B2 (ja) * | 1978-05-28 | 1985-07-31 | 日本ビクター株式会社 | 自動音量減衰装置 |
| US4194163A (en) * | 1978-08-03 | 1980-03-18 | Texaco Development Corporation | Floating point amplifier means and method |
| US4213097A (en) * | 1978-10-19 | 1980-07-15 | Racal-Milgo, Inc. | Hybrid automatic gain control circuit |
| US4349883A (en) * | 1980-03-03 | 1982-09-14 | The B. F. Goodrich Company | Signal detector circuit with gain control method |
| US4373141A (en) * | 1981-01-22 | 1983-02-08 | E-Systems, Inc. | Fast updating peak detector circuit |
| US4580111A (en) * | 1981-12-24 | 1986-04-01 | Harris Corporation | Amplitude modulation using digitally selected carrier amplifiers |
| JPS58168314A (ja) * | 1982-03-30 | 1983-10-04 | Nec Corp | 自動利得制御増巾回路 |
| US4500842A (en) * | 1982-03-30 | 1985-02-19 | Communications Satellite Corporation | Adaptive gain variable bit rate NIC processor |
| JPS5925450A (ja) * | 1982-07-31 | 1984-02-09 | Sharp Corp | インラインデ−タ通信装置 |
| DE3248114C2 (de) * | 1982-12-24 | 1987-04-30 | Krautkrämer GmbH, 5040 Brühl | Verfahren und Vorrichtung zur Digitalisierung und Speicherung von Ultraschallinformationen |
| DE3334109A1 (de) * | 1983-09-21 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | Anordnung zur pegelsteuerung von in einer leitungssimulationseinrichtung erzeugten sinusspannungen in einer fernsprechanlage, insbesondere fernsprechnebenstellenanlage |
| US4691172A (en) * | 1985-09-10 | 1987-09-01 | Silicon Systems, Inc. | MOS Switched capacitor automatic gain control circuit |
| US4747065A (en) * | 1985-10-11 | 1988-05-24 | International Business Machines Corporation | Automatic gain control in a digital signal processor |
| US4785418A (en) * | 1986-08-29 | 1988-11-15 | International Business Machines Corporation | Proportional automatic gain control |
| DE3815205C2 (de) * | 1987-05-08 | 1995-06-29 | Hitachi Construction Machinery | Verstärkerschaltung mit regelbarem Verstärkungsfaktor |
| JP2533062Y2 (ja) * | 1987-07-03 | 1997-04-16 | ヤマハ株式会社 | アナログディジタル変換回路 |
| JPH01185008A (ja) * | 1988-01-19 | 1989-07-24 | Nec Corp | 利得可変増幅器 |
| US5196808A (en) * | 1991-12-02 | 1993-03-23 | Motorola, Inc. | RF amplifier protector and method |
| JPH05275946A (ja) * | 1992-03-30 | 1993-10-22 | Mitsubishi Electric Corp | ゲインコントロールアンプ |
| AU5897194A (en) * | 1992-12-03 | 1994-06-22 | Motorola, Inc. | Digital voltage regulator having capacitance selector |
| JP2924644B2 (ja) * | 1994-06-15 | 1999-07-26 | 三菱電機株式会社 | 送信電力制御回路、基地局、移動機及び移動体通信システム |
| US5687321A (en) * | 1994-12-28 | 1997-11-11 | Maxim Integrated Products | Method and apparatus for transmitting signals over a wire pair having activity detection capability |
| US5680075A (en) * | 1995-05-31 | 1997-10-21 | Casio Phonemate, Inc. | Digital automatic gain control |
| AU6702196A (en) * | 1995-07-31 | 1997-02-26 | Alcatel Standard Electrica S.A. | Output power control in burst transmitters |
| JPH11112366A (ja) * | 1997-10-07 | 1999-04-23 | Fujitsu Ltd | 自動送信電力制御回路 |
| US5926068A (en) * | 1997-10-16 | 1999-07-20 | Kabushiki Kaisha Toshiba | Variable gain amplifier or analog multiplexer with feedforward current blocking |
| US6100829A (en) * | 1997-10-20 | 2000-08-08 | Seagate Technology, Inc. | Method and apparatus for a digital peak detection system including a countdown timer |
| US6141169A (en) * | 1997-10-23 | 2000-10-31 | Cirrus Logic, Inc. | System and method for control of low frequency input levels to an amplifier and compensation of input offsets of the amplifier |
| US6069866A (en) * | 1997-10-23 | 2000-05-30 | Cirrus Logic, Inc. | System and method for coarse gain control of wide band amplifiers |
| DE10255606A1 (de) * | 2002-11-28 | 2004-06-17 | Infineon Technologies Ag | Verstärkeranordnung, Empfänger mit der Verstärkeranordnung und Verfahren zum Betrieb eines programmierbaren Verstärkers |
| ITMO20030134A1 (it) * | 2003-05-09 | 2004-11-10 | Cooperativa Bilanciai Cam Pogalliano A R Soc | Sistema di pesatura |
| DE102004029941B3 (de) * | 2004-06-21 | 2005-12-15 | Infineon Technologies Ag | System zur Auswertung eines Sensorsignals |
| US7098732B2 (en) * | 2004-09-30 | 2006-08-29 | Silicon Laboratories Inc. | Multi-stage variable gain amplifier utilizing overlapping gain curves to compensate for log-linear errors |
| JP2006311361A (ja) * | 2005-04-28 | 2006-11-09 | Rohm Co Ltd | 減衰器、それを用いた可変利得増幅器ならびに電子機器 |
| US7492222B2 (en) * | 2006-06-30 | 2009-02-17 | Intel Corporation | Compound automatic gain control |
| US20080070521A1 (en) * | 2006-09-12 | 2008-03-20 | Honeywell International Inc. | System and method for controlling gain of related signals |
| US7787978B2 (en) * | 2006-10-03 | 2010-08-31 | Honeywell International Inc. | Apparatus and method for controller performance monitoring in a process control system |
| TW201218621A (en) * | 2010-10-29 | 2012-05-01 | Anpec Electronics Corp | Device and method for signal amplification |
| US20140161104A1 (en) * | 2012-12-10 | 2014-06-12 | Qualcomm Incorporated | Dynamic hysteresis selection |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3308392A (en) * | 1965-02-04 | 1967-03-07 | Esso Production Company | Seismic amplifier having means for changing the amplification of the seismic signal by discrete steps proportional to a given power of two |
| US3464022A (en) * | 1967-08-30 | 1969-08-26 | Mandrel Industries | Apparatus for controlling the gain of binary gain ranging amplifiers |
| US3684968A (en) * | 1970-08-31 | 1972-08-15 | Texas Instruments Inc | Floating point amplifier |
| DE2044634A1 (de) * | 1970-09-09 | 1972-03-16 | Licentia Gmbh | System zur Einstellung der Verstärkung bzw. Dämpfung eines Nachrichtenkanals, insbesondere eines Tonkanales in einem Studio-Mischpult |
| DE2161657C2 (de) * | 1971-12-11 | 1982-10-14 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Regeleinrichtung |
| US3879672A (en) * | 1973-09-04 | 1975-04-22 | Honeywell Inf Systems | Digital automatic gain control circuit |
| US3887875A (en) * | 1973-09-07 | 1975-06-03 | Ncr Co | Digital signal leveling device |
-
1975
- 1975-04-21 US US05/569,810 patent/US3969683A/en not_active Expired - Lifetime
-
1976
- 1976-01-30 CA CA244,611A patent/CA1080815A/en not_active Expired
- 1976-04-07 GB GB14156/76A patent/GB1530183A/en not_active Expired
- 1976-04-15 JP JP51041926A patent/JPS51128248A/ja active Pending
- 1976-04-16 FR FR7611393A patent/FR2308972A1/fr active Granted
- 1976-04-17 DE DE2617114A patent/DE2617114C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2308972A1 (fr) | 1976-11-19 |
| GB1530183A (en) | 1978-10-25 |
| DE2617114A1 (de) | 1976-11-11 |
| FR2308972B1 (enExample) | 1979-04-20 |
| JPS51128248A (en) | 1976-11-09 |
| DE2617114C2 (de) | 1981-12-10 |
| US3969683A (en) | 1976-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |