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Electronic circuit to automatically adjust signal strength
Automatic gain control (AGC), sometimes Automatic volume control (AVC) is a closed-loop feedback regulating circuit in an amplifier or chain of amplifiers
Automatic_gain_control
Electric circuit that generates sine waves
be viewed as a positive gain amplifier combined with a bandpass filter that provides positive feedback. Automatic gain control, intentional non-linearity
Wien_bridge_oscillator
Radio circuit
radio equipment, Automatic Frequency Control (AFC), also called Automatic Fine Tuning (AFT), is a method or circuit to automatically keep a resonant circuit
Automatic_frequency_control
Device for receiving radio transmissions
called automatic gain control (AGC). AGC can be compared to the dark adaptation mechanism in the human eye; on entering a dark room the gain of the eye
Radio_receiver
Study of sound recording evidence usage in court
involves gain adjustments to normalize the amplitude envelope of the recorded audio signal. Typically is used the automatic gain control technique, or gain
Audio_forensics
Process where information about current status is used to influence future status
Bode to determine the gain margin and phase margin. Design to ensure stability often involves frequency compensation to control the location of the poles
Feedback
Ability of a circuit to increase the power or amplitude of a signal
medium Antenna gain Aperture-to-medium coupling loss Automatic gain control Attenuation Complex gain DC offset Effective radiated power Gain before feedback
Gain_(electronics)
Audio oscillator made by Hewlett-Packard
effective automatic gain control that not only kept the oscillator output amplitude constant, but it also kept the oscillator's loop gain near unity
HP_200A
Miniature medium-gain dual-triode vacuum tube
timebase oscillator, frame timebase oscillator, in some cases as gated automatic gain control, synchronisation separator, limiter, or, in some later colour sets
12AU7
Use of various control systems for operating equipment
measurements and output control signals. In the simplest type of an automatic control loop, a controller compares a measured value of a process with a desired
Automation
Type of electronic circuit
considered a voltage-controlled amplifier or variable-gain amplifier. Applications are for electronic volume control and automatic gain control (AGC). Although
Analog_multiplier
Analogue television broadcasting system
from the original on 21 May 2014. Retrieved 20 May 2014. "Pye's "Automatic Picture Control" of 1953". Retrieved 4 December 2012. Bishop, Harold (1961). "Twenty-five
405-line_television_system
Reduction in gain due to nonlinearity
digital realm or analog realm. Automatic gain control circuits are intentionally designed to actively change the overall gain in response to the level of
Gain_compression
typically for use as a detector and the other as a rectifier for automatic gain control, in one envelope. In practice the two diodes usually share a common
Double_diode_triode
Miniature medium-gain dual triode vacuum tube
oscillator, relay tube, separator, limiter and also as keyed and gated automatic gain control. This tube is essentially two 6AB4/EC92s in a single envelope. Unlike
12AT7
Copy protection system in VHS and DVDs
react to these excessive voltage pulses by compensating with their automatic gain control circuitry. This causes the recorded picture to wildly change brightness
Analog_Protection_System
Electrical circuit
conversion Extending the dynamic range of other circuits, used for: Automatic gain control of transmit power in radio frequency circuits Scaling a large dynamic
Log_amplifier
size produce echoes of the same size, regardless of target range. Automatic gain control Dowsett, David; Kenny, Patrick A.; Johnston, R. Eugene (28 April
Time-varied_gain
2008 full-frame digital single-lens reflex camera
filters, audio VU meters and disables the automatic gain control on the microphone input (manual gain control for microphone input has since been added
Canon_EOS_5D_Mark_II
Morse code decoder software
CW Skimmer also includes a DSP processor with a noise blanker, automatic gain control, and variable-bandwidth CW filter. It accepts TCP/IP network connections
CW_Skimmer
Linear oscillator circuit using an RC network
" Strauss 1970, pp. 706–713, Amplitude of Oscillation—Part II, Automatic Gain Control. Department of the Army 1962, pp. 179–180 Media related to RC oscillators
RC_oscillator
Radio communication system implemented in software
an amplifier and down-converter (see Frequency mixer) feeding an automatic gain control, which fed an analog-to-digital converter that was on a computer
Software-defined_radio
Random pulses in aviation radio systems
and cause it to send out a signal, creating random signals. An automatic gain control system on subsequent models cured this problem. Primarily, squitter
Squitter
1954 commercial transistor radio
receiver has automatic gain control. The DC level of the detected signal is filtered with a large capacitor and used to control the gain of the first
Regency_TR-1
system. This happens when negative feedback in a control system, such as in radio automatic gain control or when an amplifier reaches steady state. Steady
Constant_envelope
Line code mapping 8-bit words to 10-bit symbols
transformer-coupled unshielded twisted pair or optical receivers using automatic gain control. Note that in the following tables, for each input byte (represented
8b/10b_encoding
Control concept
Karl Küpfmüller published papers on a negative-feedback-based automatic gain control system and a feedback system stability criterion in 1928. Nyquist
Negative_feedback
Anomalous seismic attribute due to the presence of a petroleum reservoir
Equipment prior to the 1970s had the bright spots obscured due to the automatic gain control. Flat spots: nearly horizontal reflectors that cross existing stratigraphy
Hydrocarbon_indicator
Spike in a seismic attribute, often indicating hydrocarbons
the early 1970s because of the extensive and industry-wide use of automatic gain control, which obscured the amplitude effects of hydrocarbon accumulations
Bright_spot
Aircraft identification system
Mark II addressed both these problems. An automatic gain control eliminated the need to adjust the gain, making the device much more likely to be working
IFF_Mark_II
Audio signal processing operation
density. 1176 Peak Limiter Automatic gain control Gain compression, similar (but generally undesired) reductions in waveform gain, caused by amplifier circuit
Dynamic_range_compression
Type of modem
receiver is to convert signal's frequency, to adjust its power via an automatic gain control circuit and to get its complex envelope components. The input signal
Satellite_modem
Electronic warfare technique
with the addition of an automatic gain control system, which amplified the received signal to a pre-set level. Inverse gain modulation, also known as
Angle_deception_jamming
Type of radio receiver
disadvantage. Improved tubes also made stable gain, single-control tuning, and automatic gain control more practical, helping the superheterodyne become
Superheterodyne_receiver
DJ software
each virtual deck) for controlling relative levels and frequencies (via multiple equalizer & filter models) Automatic gain control Real-time track management
Traktor
Low frequency audio feedback
Receiver audio circuits with automatic gain control (AGC) have a long time constant feedback loop which adjusts the gain of the audio stage to compensate
Motorboating_(electronics)
Missile guidance system
implemented using basic analog electronics. It first uses some form of automatic gain control to adjust the image brightness until it contains some areas with
Contrast_seeker
Type of noise gate
audio when no signal is present. Carrier squelch uses receiver Automatic gain control (AGC) to determine the squelch threshold. Single-sideband modulation
Squelch
public. Multitone of London patented the first hearing aid to use automatic gain control. The same company introduced a wearable version in 1948. Military
History_of_hearing_aids
Process of varying one or more properties of a periodic waveform
receiver side, the demodulator typically performs: Bandpass filtering. Automatic gain control, AGC (to compensate for attenuation, for example fading). Frequency
Signal_modulation
United States defense standard
4006.1 Power gain and noise figure 4007 Automatic gain control range 5001 Parameter mean value control 5002.1 Parameter distribution control 5003 Failure
MIL-STD-883
Inevitable vulnerability in copy protection
players by outputting a deliberately distorted signal, crippling the automatic gain control for video, causing the brightness to fluctuate wildly. While this
Analog_hole
Interference with animal sonar systems
PMC 2323577. PMID 18446226. Kick, S. A.; J. A. Simmons (1984). "Automatic gain control in the bat's sonar receiver and the neuroethology of echolocation"
Echolocation_jamming
Video editing software
video track Automatic gain control for rendering multiple audio channels Realtime mixing/previewing of audio Channel mixer volume control + fine grained
LiVES
Electronic component
These properties made the original Vactrol a convenient and cheap automatic gain control and compressor for telephone networks. The photoresistors easily
Opto-isolator
Control loop feedback mechanism
a feedback-based control loop mechanism commonly used to manage machines and processes that require continuous control and automatic adjustment. It is
PID_controller
of Automatic Gain Control (AGC), is a method that relies on clutter returns far outnumbering echoes from targets of interest. The receiver's gain is automatically
Radar_signal_characteristics
Module file player
plugin. Features include a playlist editor, graphical equalizer, automatic gain control, bass expansion, reverb, Dolby Surround Sound support and the ability
ModPlug_Player
Airborne search radar
elevation beam widths, selectable output and receiver radiated gain and automatic gain control amongst other features. In accordance with the Joint Electronics
AN/APS-20
Approach to controller design that explicitly deals with uncertainty
parameters near the nominal. High-gain feedback is a simple example of a robust control method; with sufficiently high gain, the effect of any parameter variations
Robust_control
Real-time image capture devices for displaying an object to a large audience
examples of automated features include automatic iris adjustment, auto exposure, white balance, and automatic gain control. Motherboards often include a variety
Document_camera
Theorem used for studying closed-loop stability
loop gain, conicity, and positivity," in IEEE Transactions on Automatic Control, vol. 11, no. 2, pp. 228-238, April 1966. Glad, Ljung: Control Theory
Small-gain_theorem
Electronic component
most commonly used analog design blocks: adaptive analog filters, automatic gain-control circuits, clock generators, compressors, electrometers, energy harvesters
Voltage-controlled_resistor
Gunner AGC – Automatic Gain Control AGF – Army Ground Forces AGL – Above Ground Level AGL – Automatic Grenade Launcher AGLS – Automatic Gun Laying System
Glossary of military abbreviations
Glossary_of_military_abbreviations
because, unlike plate detector circuits, they could also provide automatic gain control voltage (A.V.C.) for the radio frequency amplifier stages of the
Plate_detector_(radio)
Topics referred to by the same term
a small Automated Guided Vehicle Automatic gain control of electronic amplification Automatic generation control of electricity generators Auxiliary
AGC
Railway signaling system
maintaining or even improving safety. A CBTC system is a "continuous, automatic train control system utilizing high-resolution train location determination,
Communications-based train control
Communications-based_train_control
Type of sensor
Automatic signal compensation mechanisms can include automatic offset compensation (AOC), automatic balance compensation (ABC) and automatic gain control
Linear_encoder
Electronic device/component that increases the strength of a signal
frequency in frequency multiplier circuits. Automatic gain control circuits require an amplifier's gain be controlled by the time-averaged amplitude so that
Amplifier
Experiment undertaken on the Apollo 17 mission
to be inferred from the knowledge of the surface topography. An automatic gain control (AGC) feature was included in all the channels to optimize the signal
ALSE
Type of radio design
accomplished at baseband. Since there is no high gain IF amplifier utilizing automatic gain control (AGC), the baseband output level may vary over a very
Direct-conversion_receiver
Radar used for extremely low level flight
measurements useless. This was eventually traced to the automatic gain control using very high gain while at the top of the scanning pattern where the terrain
Terrain-following_radar
Type of vestigial sideband modulation
Technologies, Incorporated. p. 5. ISBN 978-1-60267-000-6. VSB-dependent automatic gain control, Jung Sig Jun et al., U.S. patent no. 6,281,945. Accessed on line
2VSB
Live sound mixing device
Emil Torick and Richard G. Allen were granted a patent for an "Automatic Gain Control System with Noise Variable Threshold", an adaptive threshold circuit
Automixer
Type of smoke detector
system to enter alarm when no fire was present. Modern devices use automatic gain control as a means of adapting the signal for these effects. Building movement
Optical_beam_smoke_detector
Electronic method of transmitting information with a carrier wave
is that it provides an amplitude reference. In the receiver, the automatic gain control (AGC) responds to the carrier so that the reproduced audio level
Amplitude_modulation
Type of electronic circuit
to an automatic gain control (AGC) circuit in a radio receiver. The Wien bridge oscillator is a widely used circuit in which this type of gain stabilization
Electronic_oscillator
Telecommunication device that obscures signals
work of a timing recovery circuit (see also clock recovery), an automatic gain control and other adaptive circuits of the receiver (eliminating long sequences
Scrambler
Vacuum tube for audio applications
cutoff (variable mu) makes it suitable for applications such as automatic gain control (AGC) in tape recorders. "www.thetubestore.com - EF86 Tubes". www
EF86
tubes. Often, but not always, such reflex receivers did not have Automatic Gain Control (AGC), and it was usually not possible to reduce the volume completely
Reflex_receiver
Technique for designing controllers
Active disturbance rejection control (or ADRC, also known as automatic disturbance rejection control) is a model-free control technique used for designing
Active disturbance rejection control
Active_disturbance_rejection_control
signals into digital signals. AGC (automatic gain control) A circuit for automatically controlling amplifier gain in order to maintain a constant output
Glossary_of_video_terms
American defense electronics company
the company to grow. One particularly lucrative design was the Automatic Gain Control circuit. This was such a useful feature that almost every AM radio
Hazeltine_Corporation
Object detection system using radio waves
of automatic gain control (AGC), is a method that relies on clutter returns far outnumbering echoes from targets of interest. The receiver's gain is automatically
Radar
American radio with 5 vacuum tubes
audio tube contained a second diode, it could be used to provide automatic gain control (AGC), or AGC bias could be derived from the audio detector diode
All_American_Five
hearing-impaired people. He and his colleagues developed a dual-time-constant automatic gain control system that has been widely used in hearing aids and cochlear implants
Brian_Moore_(scientist)
Type of computer disk storage drive
such high powers are used during writing. Some CD players have automatic gain control (AGC) to vary the power of the laser to ensure reliable playback
Optical_disc_drive
Television that uses analog signals
audio and video carriers. Like radio, television has automatic gain control (AGC). This controls the gain of the IF amplifier stages and the tuner. The video
Analog_television
Semiconductor (MOSFET) silicon switched-capacitor filters, and a patented Automatic Gain Control circuit. This was the first mixed analog-digital integrated circuit/system
Michael_Francis_Tompsett
Function on a camera to use the screen as a viewfinder
the live view display. Very few live preview implementations lack automatic gain control and become virtually blank in low-light conditions. Live view of
Live_preview
Measures to thwart copying of disc-based media
embedding signals in a DVD player's analog outputs which exploit automatic gain control circuitry present in many VCRs, preventing easy duplication of DVD
CD_and_DVD_copy_protection
Tape machine for playing and recording audio compact cassettes
and automatic gain control on recording. Tape recorder audio quality had improved by the mid-1970s, and a cassette deck with manual level controls and
Cassette_deck
Telecommunications industry term
quality, trunk amplifiers could be equipped with automatic level control or automatic gain control, hybrid amplifiers, which have a hybrid integrated
Hybrid_fiber-coaxial
Aircraft surveillance technology
Automatic Dependent Surveillance–Broadcast (ADS-B) is an aviation surveillance technology and form of electronic conspicuity in which an aircraft determines
Automatic Dependent Surveillance–Broadcast
Automatic_Dependent_Surveillance–Broadcast
Color television system
mission in 1971. Image quality issues appeared due to the camera's automatic gain control (AGC) having problems getting the proper exposure when the astronauts
Field-sequential_color_system
Morse code operating mode
signals created by the fast T/R switch operation. Many receivers have automatic gain control (AGC) circuits with time constants that take many milliseconds to
QSK_operation_(full_break-in)
Distinguishing friendly forces using coded radio frequency transponders
bands that it stepped through using a motorized switch, while an automatic gain control solved the problem of it sending out too much signal. Mark II was
Identification_friend_or_foe
Navigation system formerly used by aircraft
preempt the navigation signals. The pilot would have to disable the Automatic Gain Control (AGC) when assessing relative signal strength. Basic flight instruments
Low-frequency_radio_range
Process necessary for BJT amplifiers to work correctly
switch. However, one application of fixed bias is to achieve crude automatic gain control in the transistor by feeding the base resistor from a DC signal
Bipolar_transistor_biasing
While not fundamental to a receiver, automatic gain control is a great convenience to the user, since it automatically compensates for changing received
Radio_receiver_design
Intelligent network based lighting control
night and automatically adjusting the lighting when a household is away to make it appear as though there are occupants. Lighting control systems typically
Lighting_control_system
Phenomenon in electronic oscillators
introductions of active control like automatic gain control generally eliminated it. Armstrong's own receiver used this effect as a control system. Squegging
Squegging
Set of hardware and low level software features
conversion; it also utilizes motion adaptive 3D comb filter, automatic color control, automatic gain control, hardware noise reduction and edge enhancement technologies
ATI_Avivo
1995 American crewed spaceflight to deploy a Tracking and Data Relay Satellite
the LCC C-5 Console due to fluctuations seen on the external tank automatic gain control (AGC) ET range safety system receiver. Launch Commit Criteria contingency
STS-70
Type of pistol
semi-automatic pistol (also called a self-loading pistol, autopistol, or autoloading pistol[citation needed]) is a repeating handgun that automatically ejects
Semi-automatic_pistol
Weapon guidance system utilizing the target's infrared emissions to track it
target, so this is not a complete system by itself and some form of automatic gain control is often desired. Spin-scan systems can eliminate the signal from
Infrared_homing
Part of the 1998 US copyright law
by automatic gain control copy protection (the basis of Macrovision), with some exceptions. The act creates a distinction between access-control measures
WIPO Copyright and Performances and Phonograms Treaties Implementation Act
WIPO_Copyright_and_Performances_and_Phonograms_Treaties_Implementation_Act
Standards for terrestrial television signals
maximum carrier power, it is relatively easy to arrange the receiver automatic gain control to only operate during sync pulses and thus get a constant amplitude
Broadcast_television_systems
Communication using light sent through free space
quality to regulate laser diode transmission power with built-in automatic gain control. Atomic line filter#Laser tracking and communication Extremely high
Free-space optical communication
Free-space_optical_communication
Excessive modulation resulting in distortion of signal
distorted output signal of the receiving medium. "Overmodulation". Retrieved 10 January 2013. Clipping (audio) Overshoot (signal) Automatic gain control v t e
Overmodulation
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AUTOMATIC GAIN-CONTROL
AUTOMATIC GAIN-CONTROL
Female
Greek
(Γα�α) Greek name GAIA means "earth." In mythology, this is the name of the goddess of earth, the wife of Ouranos and mother of the Titans. Her Roman name is Terra.
Girl/Female
Muslim
Aromatic
Male
English
Anglicized form of Hebrew Tuwbal Qayin, TUBAL-CAIN means "thou shall be brought of Cain." In the bible, this is the name of a son of Lamech, said to be an instructor of every artificer in brass and iron.
Surname or Lastname
English
English : nickname from Middle English digne, deyne ‘worthy’, ‘honorable’, or alternatively, as Reaney suggests, from Middle English dain(e) ‘haughty’, ‘reserved’ (Burgundian French doigne).English : variant of Dean.English : variant of Dane.French : nickname from Old French dain ‘agile’, ‘nimble’.Jewish : variant of Dayan.
Boy/Male
Muslim
Aromatic
Surname or Lastname
French
French : habitational name from any of various places in France, deriving their names mostly from Old French fain ‘swamp’, but Latin fanum ‘temple’ is also a source in some cases.English : variant spelling of Fayne.
Girl/Female
Hindu, Indian, Jain
Forest; Rain
Female
English
Modern English name, either derived from from the vocabulary word, or a revival of the medieval English personal name Rayne, RAIN means "queen." Compare with masculine Rain.
Girl/Female
Hindu, Indian, Sanskrit, Telugu
Rain; Grain
Male
English
Variant spelling of English Gare, GAIR means "spear."
Boy/Male
Indian, Jain, Sanskrit
Who Gain Moksha; Salvation
Surname or Lastname
Scottish
Scottish : Anglicized form of Gaelic Mac Iain, patronymic from Iain, one of the Gaelic forms of John. This name is found in many other spellings, including McCain, Kean, and McKean. In some cases it may also be a variant of Coyne.English : variant spelling of Cane.English (of Norman origin) : habitational name from Caen in Calvados, France, named with the Gaulish elements catu ‘battle’ + magos ‘field’, ‘plain’.French (Caïn) : from the Biblical name Cain (Hebrew Qayin), probably applied as a derogatory nickname for someone who was considered to be treacherous.Spanish (CaÃn) : habitational name from a place called CaÃn in León.
Surname or Lastname
English
English : variant of Gaines.
Female
English
Short form of English Abigail, GAIL means "father rejoices."
Surname or Lastname
English
English : habitational name from any of various places named with Middle English heghen, a weak plural of hegh, from Old English (ge)hæg ‘enclosure’. See also Haynes.English : from the Middle English personal name Hain, Heyne. This is derived from the Germanic personal name Hagano, originally a byname meaning ‘hawthorn’. It is found in England before the Conquest, but was popularized by the Normans. In the Danelaw, it may be derived from Old Norse Hagni, Hǫgni (see Hagan), a Scandinavianized version of the same name.English : nickname for a wretched individual, from Middle English hain(e), heyne ‘wretch’, ‘niggard’.German : topographic name for someone who lived by a patch of enclosed pastureland, Middle High German hage(n) (see Hagen 1), hain, or a habitational name from a place named Hain, from this word.German : from the Germanic personal name Hagin, originally a byname from the same element as in 2 above.Jewish (eastern Ashkenazic) : metronymic from the Yiddish personal name Khaye ‘life’ + the Slavic possessive suffix -in.
Male
Scottish
Variant spelling of Scottish Gaelic Ian, IAIN means "God is gracious."
Surname or Lastname
English
English : variant spelling of Gale.French : nickname from Old French gail ‘cheerful’, ‘jolly’.German : variant of Geil.
Girl/Female
Latin
Fortuna.
Surname or Lastname
English
English : variant of Gain.
Male
English
Variant spelling of English Gale, GAIL means "calm, tranquil."
AUTOMATIC GAIN-CONTROL
AUTOMATIC GAIN-CONTROL
AUTOMATIC GAIN-CONTROL
AUTOMATIC GAIN-CONTROL
AUTOMATIC GAIN-CONTROL
AUTOMATIC GAIN-CONTROL
AUTOMATIC GAIN-CONTROL
a.
A sort of spice, the grain of paradise.
superl.
Destitute of forge or efficacy; effecting no purpose; fruitless; ineffectual; as, vain toil; a vain attempt.
adv.
Once repeated; -- of quantity; as, as large again, half as much again.
a.
Very; extremely; as, main heavy.
n.
To come off winner or victor in; to be successful in; to obtain by competition; as, to gain a battle; to gain a case at law; to gain a prize.
a.
Alt. of Automatical
v.
The chief or principal part; the main or most important thing.
a.
Not voluntary; not depending on the will; mechanical; as, automatic movements or functions.
imp. & p. p.
of Gin
n.
Vanity; emptiness; -- now used only in the phrase in vain.
n.
A main-hamper.
v. i.
To have or receive advantage or profit; to acquire gain; to grow rich; to advance in interest, health, or happiness; to make progress; as, the sick man gains daily.
n.
A snare; a gin.
adv.
In return, back; as, bring us word again.
n.
To reach; to attain to; to arrive at; as, to gain the top of a mountain; to gain a good harbor.
a.
Automatic.
n.
To get, as profit or advantage; to obtain or acquire by effort or labor; as, to gain a good living.
n.
The state or quality of being automatic; the power of self-moving; automatic, mechanical, or involuntary action. (Metaph.) A theory as to the activity of matter.
pl.
of Automaton
a.
Pertaining to, or produced by, an automaton; of the nature of an automaton; self-acting or self-regulating under fixed conditions; -- esp. applied to machinery or devices in which certain things formerly or usually done by hand are done by the machine or device itself; as, the automatic feed of a lathe; automatic gas lighting; an automatic engine or switch; an automatic mouse.
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