automatic segmentation and control - definição. O que é automatic segmentation and control. Significado, conceito
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O que (quem) é automatic segmentation and control - definição

Automatic Frequency Control; Automatic Fine Tuning Control; Automatic Fine Tuning; Automatisk Frekvenskontroll; Automatic tuning control; Automatic fine tuning
  • Basic automatic frequency control in a radio receiver. У = RF amplifier stages, Д = frequency discriminator stage

Automatic gain control         
  •  Schematic of an AGC used in the analog telephone network; the feedback from output level to gain is effected via a [[Vactrol]] resistive opto-isolator.
AN ELECTRONIC CIRCUIT TO AUTOMATICALLY ADJUST SIGNAL STRENGTH
Automatic Gain Control; Automatic Level Control L...; VOGAD; AGC circuit; Automatic volume control; Automatic voltage gain; Vogad; Automatic Voltage Gain; Auto gain control
Automatic gain control (AGC) is a closed-loop feedback regulating circuit in an amplifier or chain of amplifiers, the purpose of which is to maintain a suitable signal amplitude at its output, despite variation of the signal amplitude at the input. The average or peak output signal level is used to dynamically adjust the gain of the amplifiers, enabling the circuit to work satisfactorily with a greater range of input signal levels.
Market segmentation         
  • The Model-T Ford (1921) is an early example of a mass marketing (undifferentiated segmentation) approach. Initially, it was produced only in black.
  • By the 1930s, Ford was producing Deluxe models in a range of colours such as this Ford Deluxe Coupe (1931)
  • Major bases used for segmenting a market
  • The marketing program is designed with the needs of the target market in mind
  • Visualisation of market segments formed using clustering methods
  • Visualisation of two approaches to demographic segmentation using one and two variables. On the left, a single variable (age) is used. On the right, two variables (income and occupation) are used to form the segments.
  • Types of Market Segmentation: Ad-Hoc, Syndicated, and Feral
  • Perceptual map of the U.S. motor vehicle category
  • The STP approach highlights the three areas of decision-making
  • To estimate market size, a marketer might evaluate the adoption and growth rates of comparable technologies (historical analogy method).
PROCESS OF DIVIDING A BROAD CONSUMER MARKET INTO SUB-GROUPS WITH SHARED CHARACTERISTICS
Market Segmentation; Market segments; Rate fence; Segmenting; Customer segmentation; Marget segmentation; Market segment; Customer segment; Horizontal segmentation
In marketing, market segmentation is the process of dividing a broad consumer or business market, normally consisting of existing and potential customers, into sub-groups of consumers (known as segments) based on some type of shared characteristics.
Text segmentation         
PROCESS OF DIVIDING WRITTEN TEXT INTO MEANINGFUL UNITS, SUCH AS WORDS, SENTENCES, OR TOPICS
Word splitting; Word segmentation; Topic segmentation; Chinese word segmentation; Topic analysis
Text segmentation is the process of dividing written text into meaningful units, such as words, sentences, or topics. The term applies both to mental processes used by humans when reading text, and to artificial processes implemented in computers, which are the subject of natural language processing.

Wikipédia

Automatic frequency control

In radio equipment, Automatic Frequency Control (AFC), also called Automatic Fine Tuning (AFT), is a method or circuit to automatically keep a resonant circuit tuned to the frequency of an incoming radio signal. It is primarily used in radio receivers to keep the receiver tuned to the frequency of the desired station.

In radio communication, AFC is needed because, after the bandpass frequency of a receiver is tuned to the frequency of a transmitter, the two frequencies may drift apart, interrupting the reception. This can be caused by a poorly controlled transmitter frequency, but the most common cause is drift of the center bandpass frequency of the receiver, due to thermal or mechanical drift in the values of the electronic components.

Assuming that a receiver is nearly tuned to the desired frequency, the AFC circuit in the receiver develops an error voltage proportional to the degree to which the receiver is mistuned. This error voltage is then fed back to the tuning circuit in such a way that the tuning error is reduced. In most frequency modulation (FM) detectors, an error voltage of this type is easily available. See Negative feedback.

AFC was mainly used in radios and television sets around the mid-20th century. In the 1970s, receivers began to be designed using frequency synthesizer circuits, which synthesized the receiver's input frequency from a crystal oscillator using the vibrations of an ultra-stable quartz crystal. These maintained sufficiently stable frequencies that AFCs were no longer needed.