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Group of video-transmitting modulation modes
Video modulation is a strategy of transmitting video signal in the field of radio modulation and television technology. This strategy enables the video
Video_modulation
Display on TV and radios due to causes such as there being no signal
old 405-line British senders using positive rather than the negative video modulation used in Canada, the US, and (currently) the UK as well. Since one impression
Noise_(video)
Electronic method of transmitting information with a carrier wave
Frequency modulation (FM) is a signal modulation technique used in electronic communication, originally for transmitting messages with a radio wave. In
Frequency_modulation
Process of varying one or more properties of a periodic waveform
Signal modulation is the process of varying one or more properties of a periodic waveform in electronics and telecommunication for the purpose of transmitting
Signal_modulation
Digital representation of sampled analog signals
Pulse-code modulation (PCM) is a method used to digitally represent analog signals. It is the standard form of digital audio in computers, compact discs
Pulse-code_modulation
Standards for terrestrial television signals
negative modulation, the maximum luminance value is represented by zero carrier power. All newer analog video systems use negative modulation with the
Broadcast_television_systems
Electronic method of transmitting information with a carrier wave
Amplitude modulation (AM) is a signal modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave
Amplitude_modulation
Representation of a signal as a rectangular wave with varying duty cycle
Pulse-width modulation (PWM), also known as pulse-duration modulation (PDM) or pulse-length modulation (PLM), is any method of representing a signal as
Pulse-width_modulation
Color encoding system for analogue television
positive video modulation, system L) unless they are manufactured for the French market. They will correctly display plain (non-broadcast) CVBS or S-Video SECAM
PAL
incompatibility had started with the earlier unusual decision to adopt positive video modulation for 819-line French broadcast signals (only the UK's 405-line was similar;
History_of_television
Television transmission technology
technology that also includes color information for the picture, so the video image can be displayed in color on the television set. It improves on the
Color_television
Baseband analog video signal format
Composite video, also known as CVBS (composite video baseband signal or color, video, blanking and sync), is an analog video format that combines image
Composite_video
Signal conversion technique
Delta modulation (DM, ΔM, or Δ-modulation) is an analog-to-digital and digital-to-analog signal conversion technique used for transmission of voice information
Delta_modulation
Form of signal modulation
Pulse-amplitude modulation (PAM) is a form of signal modulation in which the message information is encoded in the amplitude of a pulse train interrupting
Pulse-amplitude_modulation
Device which converts video signals to the format used by over-the-air RF broadcasts
later television designs include composite, S-Video, and component video jacks, which skip the modulation and demodulation steps, modulators are no longer
RF_modulator
Analog videocassette recording format
VHS (Video Home System) is a discontinued standard for consumer-level analog video recording on tape cassettes, introduced in 1976 by JVC. It was the
VHS
Signal processing technique
Hierarchical modulation, also called layered modulation, is one of the signal processing techniques for multiplexing and modulating multiple data streams
Hierarchical_modulation
Family of digital modulation methods
Quadrature amplitude modulation (QAM) is the name of a family of signal modulation methods widely used in modern telecommunications to transmit information
Quadrature amplitude modulation
Quadrature_amplitude_modulation
French analog color television system
incompatibility had started with the earlier unusual decision to adopt positive video modulation for 819-line French broadcast signals (only the UK's 405-line was similar;
SECAM
Analogue television broadcasting system
interference is encountered on a signal using negative video modulation. With positive modulation, interference could easily be of similar amplitude to
405-line_television_system
625-line analog television transmission format
Luxembourg, Monaco, and Chausey. It was the last system to use positive video modulation and AM sound. Initially adopted in 1963 for second national black and
CCIR_System_L
Method of encoding digital data on multiple carrier frequencies
multiplexing (OFDM) is a type of digital transmission used in digital modulation for encoding digital (binary) data on multiple carrier frequencies. OFDM
Orthogonal frequency-division multiplexing
Orthogonal_frequency-division_multiplexing
Digital satellite television standard
Repeat-Accumulate codes. VCM (Variable Coding and Modulation) and ACM (Adaptive Coding and Modulation) modes, which allow optimizing bandwidth utilization
DVB-S2
Use of radio waves for communication
electrical signal called the modulation signal. The modulation signal may be an audio signal representing sound from a microphone, a video signal representing
Radio
Data communications modulation protocol
Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is encoded on a carrier signal by periodically shifting the
Frequency-shift_keying
Electronic method of transmitting information with a carrier wave
communications, single-sideband modulation (SSB) or single-sideband suppressed-carrier modulation (SSB-SC) is a type of signal modulation used to transmit information
Single-sideband_modulation
Term used in analog TV broadcasting
modulates a carrier by vestigal sideband modulation (a version of amplitude modulation), where an increase in the video modulating signal produces a decrease
Residual_carrier
Radio transmission of audio by frequency modulation
FM broadcasting is a radio broadcasting method that uses frequency modulation (FM) transmissions. In November 1919, Hans Idzerda began broadcasts, using
FM_broadcasting
Electromagnetic frequencies ranging from 3 kHz to 300 GHz
systems are not uncommon: see mechanical filter and RF MEMS. Amplitude modulation (AM) Bandwidth (signal processing) Electromagnetic interference Electromagnetic
Radio_frequency
Digital cable television standard
transmits an MPEG-2 or MPEG-4 family digital audio/digital video stream, using a QAM modulation with channel coding. The standard was first published by
DVB-C
Process of extracting the original information-bearing signal from a carrier wave
content from the modulated carrier wave. There are many types of signal modulation, and there are many types of demodulators. The signal output from a demodulator
Demodulation
Family of digital video interfaces
Serial digital interface (SDI) is a family of digital video interfaces first standardized by SMPTE (The Society of Motion Picture and Television Engineers)
Serial_digital_interface
Sinusoidal wave without any modulation
(usually sinusoidal) that conveys information through a process called modulation. One or more of the wave's properties, such as amplitude or frequency
Carrier_wave
Classification of radio frequency signals
of radio emission is classified according to its bandwidth, method of modulation, nature of the modulating signal, and type of information transmitted
Types_of_radio_emissions
Signal format for standard-definition video
component video, which separates the color-difference signals into Cb/Pb and Cr/Pr, the color resolution of S-Video is limited by the modulation on a subcarrier
S-Video
Represents an analog signal using only two levels
modulation (PFM) is a modulation method for representing an analog signal using only two levels (1 and 0). It is analogous to pulse-width modulation (PWM)
Pulse-frequency_modulation
Digital electronic representation of moving visual images
that of traditional video cameras, which are designed for the limited needs of broadcast television. In the 1970s, pulse-code modulation (PCM) induced the
Digital_video
Radio broadcasting using amplitude modulation
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions
AM_broadcasting
1981 home computer
required a slightly modified version of the machine to match the positive video modulation of CCIR System L sets, while the United States and Canada required
ZX81
Digital terrestrial television standard
digital video and other data in an MPEG transport stream, using coded orthogonal frequency-division multiplexing (COFDM or OFDM) modulation. It is also
DVB-T
ITU-T recommendation
ITU-T standard (Recommendation) for audio encoding, titled Pulse code modulation (PCM) of voice frequencies released for use in 1972. G.711 passes audio
G.711
Electromagnetic wave range of 30–300 MHz
Sound-in-Syncs Zweikanalton Modulation Frequency modulation Quadrature amplitude modulation Vestigial sideband modulation (VSB) Transmission Amplifiers
Very_high_frequency
Multimedia delivery method
encoded with pulse-code modulation (PCM) requires a bandwidth of 1.4 Mbit/s for uncompressed CD audio, while raw digital video requires a bandwidth of
Streaming_media
Form of sound synthesis
Frequency modulation synthesis (or FM synthesis) is a form of sound synthesis whereby the frequency of a waveform is changed by modulating its frequency
Frequency modulation synthesis
Frequency_modulation_synthesis
Device for broadcasting television signals
The modulation technique is usually frequency modulation (FM) with a typical maximum deviation of 50 kHz (for 1 kHz. input at 0 dBm level). The video (VF)
Television_transmitter
Voice coding method
Continuously variable slope delta modulation (CVSD or CVSDM) is a voice coding method. It is a delta modulation with variable step size (i.e., special
Continuously variable slope delta modulation
Continuously_variable_slope_delta_modulation
Mobile data technology for GSM networks
EGPRS/EDGE, the modulation and coding schemes MCS-1 to MCS-9 take the place of the coding schemes of GPRS, and additionally specify which modulation scheme is
EDGE_(telecommunication)
Brightness in an image or video
In video, luma ( Y ′ {\displaystyle Y'} ) represents the brightness in an image (the "black-and-white" or achromatic portion of the image). Luma is typically
Luma_(video)
Transmission of information via microwaves
radio transmission. Therefore, new countermeasures, such as adaptive modulation, have been adopted. The emitted power is regulated for cellular and microwave
Microwave_transmission
Television content transmitted via signals in the air
audio and analog video television transmissions by 2012 and switch all terrestrial television broadcasting to digital audio and digital video (all EU countries
Terrestrial_television
Frame sequence for color composite video signals
In the case of the two main composite video standards, both of which use analog quadrature amplitude modulation for the chrominance signal, PAL has an
Color_frame_sequence
Device that transmits and receives radio waves
Sound-in-Syncs Zweikanalton Modulation Frequency modulation Quadrature amplitude modulation Vestigial sideband modulation (VSB) Transmission Amplifiers
Antenna_(radio)
Multimedia framework
128 loudness normalizer (loudnorm) Modulation Sinusoidal Amplitude Modulation (tremolo) Sinusoidal Phase Modulation (vibrato) Phaser (aphaser) Chorus (chorus)
FFmpeg
Adjustment to ensure that the tape head is correctly aligned to read the tape
In a video tape recorder, tracking is a calibration adjustment which ensures that the spinning playback head is properly aligned with the helical scan
Video_tape_tracking
Ultra high frequency radio to transmit TV
Broadcasting System's access to movie rights proved commercially valuable as home video cassette rental became ubiquitous in the 1980s. In 1986, the DuMont owned-and-operated
UHF_television_broadcasting
405-line analog television transmission format
frequency or 405×25=10,125 Hz. The video bandwidth was 3.0 MHz. The video signal modulates the carrier by amplitude modulation, but a portion of the upper sideband
CCIR_System_A
Optical analog video disc format
October 28, 1999. Retrieved February 10, 2011. "Digital audio modulation in the PAL and NTSC video disc formats". J. Audio Eng. Soc. 32: 883. 1984. Retrieved
LaserDisc
Audio Frequency Modulation (AFM) is an audio recording standard used by Betamax and VHS Hi-Fi stereo, 8mm and Hi8 video systems. AFM is mono on 8mm systems
Audio_Frequency_Modulation
Magnetic tape-based videocassette format for camcorders
Video8 machines used audio frequency modulation (AFM) to record sound along the same helical tape path as that of the video signal. This meant that Video8's
8_mm_video_format
Technique for doubling the perceived frame rate of a video display
Interlaced video (also known as interlaced scan) is a technique for doubling the perceived frame rate of a video display without consuming extra bandwidth
Interlaced_video
Open standard for digital television broadcasting
modulation for a second generation digital terrestrial television broadcasting system (DVB-T2)" (PDF). DVB consortium. February 2011. "Digital Video Broadcasting
DVB
Characteristic of an optical system
primary importance. This derived function is commonly referred to as the modulation transfer function (MTF). The image on the right shows the optical transfer
Optical_transfer_function
Format for digital video content
impractical for digital video coding. Digital video was introduced in the 1970s, initially using uncompressed pulse-code modulation (PCM), requiring high
Video_coding_format
Visual phenomenon
regulation technologies. Another cause of light modulations may be lamps with unfiltered pulse-width modulation type external dimmers. Whether this is so may
Stroboscopic_effect
Signal transmitted for test purposes in TV transmitters
frequency case for modulation index measurements in analogue TV transmitters. The composite monochrome video signal (CVS) is composed of a video signal superimposed
Zero_reference_pulse
1995 digital TV standard for satellite television
Retrieved 19 February 2024. Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for 11/12 GHz satellite services (PDF)
DVB-S
Alteration of the original shape of a signal
forms of audio distortion are non-flat frequency response, compression, modulation, aliasing, quantization noise, wow and flutter from analog media such
Distortion
Digital video codecs and tape formats
videocassettes, recording modulation method, magnetization, and basic system data in part 1. Part 2 describes the specifics of video systems supporting 525-60
DV_(video_format)
Music accompanying video games
display monitor. Early games used simple tone generation and/or frequency modulation synthesis to simulate instruments for melodies, and used a "noise channel"
Video_game_music
Type of two-way radio service
following five frequencies: Channels 1–3 must use "narrowband" frequency modulation (2.5 kHz deviation; 11.25 kHz bandwidth). Channels 4 and 5 may use either
Multi-Use_Radio_Service
Electromagnetic spectrum 300–3000 MHz
931–932 MHz: Pagers 932–935 MHz: Fixed microwave services: distribution of video, audio and other data 935–940 MHz: Commercial 2-way radio 940–941 MHz: Narrowband
Ultra_high_frequency
Digital optical disc data storage format
general manufacturing process, based on video LaserDisc technology. Philips also contributed eight-to-fourteen modulation (EFM), while Sony contributed the
Compact_disc
Transmission of information electromagnetically
several different modulation schemes available to achieve this [two of the most basic being amplitude modulation (AM) and frequency modulation (FM)]. An example
Telecommunications
Integrated circuit designed to produce audio signals
synthesis, and frequency modulation synthesis (FM synthesis). Such sound chips were widely used in arcade game system boards, video game consoles, home computers
Sound_chip
Information transmission rate expressed in bits per second
this is not the case for modern modulation systems used in modems and LAN equipment. For most line codes and modulation methods: symbol rate ≤ gross bit
Bit_rate
Overview of and topical guide to television broadcasting
interference Amplitude modulation Frequency mixer Frequency modulation Quadrature amplitude modulation Vestigial sideband modulation (VSBF) Differential
Outline of television broadcasting
Outline_of_television_broadcasting
Device that modulates an analog carrier signal to encode digital information
as tones using frequency shift keying (FSK). This was also a digital modulation technique, making this an early modem. Commercial modems largely did not
Modem
Electronic device that emits radio waves
electronic signal called the modulation signal. The modulation signal may be an audio signal, which represents sound, a video signal which represents moving
Transmitter
Second revision of the DVB-T standard
transmits compressed digital audio, video, and other data in "physical layer pipes" (PLPs), using OFDM modulation with concatenated channel coding and
DVB-T2
Home video game console
one white noise channel, and one DPCMTooltip differential pulse-code modulation channel for sample playback. Audio playback speed is dependent on the
Nintendo_Entertainment_System
Compact encoding of digital data
Code-excited linear prediction Color Cell Compression Delta modulation Differential pulse-code modulation Discrete cosine transform Discrete sine transform Discrete
Data_compression
Random fluctuation in an electrical signal
conversion and compression, peak signal-to-noise ratio (PSNR) in image and video coding and noise figure in cascaded amplifiers. In a carrier-modulated passband
Noise_(electronics)
DC-free run-length limited line code used by several optical disc formats
Eight-to-fourteen modulation (EFM) is a data encoding technique – formally, a line code – used by compact discs (CD), laserdiscs (LD) and pre-Hi-MD MiniDiscs
Eight-to-fourteen_modulation
Standards for digital television in the US
were patented, including elements of the MPEG video coding, the AC-3 audio coding, and the 8VSB modulation. The cost of patent licensing, estimated at up
ATSC_standards
Colour in an image or video
Chrominance (chroma or C for short) is the signal used in video systems to convey the color information of the picture (see YUV color model), separately
Chrominance
Free and open-source transcoding and video editing software
application for non-linear video editing and transcoding multimedia files. The developers intend it as "a simple tool for simple video processing tasks" and
Avidemux
Electrical power applied to the antenna system in a transmitter station
the video's higher frequencies and the FM audio carrier. Digital television modulation systems are about 30% more efficient than analogue modulation systems
Output power of an analog TV transmitter
Output_power_of_an_analog_TV_transmitter
Concept in the psychophysics of vision
flicker fusion threshold, also known as critical flicker frequency, flicker modulation threshold, or flicker fusion rate, is the frequency at which a flickering
Flicker_fusion_threshold
Hybrid analog video/digital audio format
(and all-digital) format launched in 1993. "Digital audio modulation in the PAL and NTSC video disc formats, J. Audio Eng. Soc. vol. 32, pp. 883, 1984"
CD_Video
Method for reducing unwanted sound
input noise temperature Equivalent noise resistance Equivalent pulse code modulation noise Impulse noise (audio) Noise figure Noise floor Noise shaping Noise
Active_noise_control
Gaming generation from 1993 to 2006
32-bit era, the 64-bit era, or the 3D era) refers to computer and video games, video game consoles, and handheld gaming consoles dating from approximately
Fifth generation of video game consoles
Fifth_generation_of_video_game_consoles
Distribution of audio or audiovisual content to dispersed audiences
have been several methods used for broadcasting electronic media audio and video to the general public: Telephone broadcasting (1881–1932): the earliest
Broadcasting
Electronic devices that generate electronic signals
often include some sort of modulation function such as amplitude modulation (AM), frequency modulation (FM), or phase modulation (PM) as well as a second
Signal_generator
Ratio of the desired signal to the background noise
where W is the bandwidth and k a {\displaystyle k_{a}} is modulation index Output signal-to-noise ratio (of AM receiver) is given by ( S N
Signal-to-noise_ratio
Electronic tool for visualizing a video signal
A vectorscope is a special type of oscilloscope used in both audio and video applications. Whereas an oscilloscope or waveform monitor normally displays
Vectorscope
1982 film by Steven Lisberger
synthesizer and Crumar's GDS digital synthesizer (complex additive and phase modulation synthesis), along with non-electronic pieces performed by the London Philharmonic
Tron
Maximum rate of data transfer
Information Sciences. 60. Retrieved 13 October 2019. Lea, William (1994). Video on demand: Research Paper 94/68. House of Commons Library. Archived from
Bandwidth_(computing)
Gaming generation from 1987 to 2004
In the history of video games, the fourth generation of video game consoles, more commonly referred to as the 16-bit era, began on October 30, 1987, with
Fourth generation of video game consoles
Fourth_generation_of_video_game_consoles
Creative human and cultural expression
colour of an object, such as basic red for a red robe, rather than the modulations of that colour brought about by light, shade, and reflection. The term
The_arts
Behaviour of travelling radio waves
Sound-in-Syncs Zweikanalton Modulation Frequency modulation Quadrature amplitude modulation Vestigial sideband modulation (VSB) Transmission Amplifiers
Radio_propagation
VIDEO MODULATION
VIDEO MODULATION
Boy/Male
English French Portuguese Spanish
Life. Used as both surname and given name. See also Vito.
Boy/Male
Hindu, Indian
Fulfilment
Boy/Male
Gujarati, Hindu, Indian, Jain, Kannada, Malayalam, Marathi
Without Form
Boy/Male
Tamil
Without form
Male
Japanese
(英夫) Japanese name HIDEO means "splendid man."
Boy/Male
American, British, English, French, Portuguese, Spanish
Life; Used as Both Surname and Given Name; Life Giving
VIDEO MODULATION
VIDEO MODULATION
Biblical
discourse; prophecy
Male
Greek
Greek name PHALLAS means "stallion." This was the name of a horse belonging to Heraclios.
Boy/Male
Hindu
Full of Joy
Girl/Female
Arabic, Muslim
Variant of Na'ila; Winner
Girl/Female
Muslim
Gold
Boy/Male
Hindu
Kind, Explosive, A dynamic person
Girl/Female
Tamil
Boy/Male
American, British, English
Judge's Son
Girl/Female
Arabic
Believer of God
Boy/Male
Arabic, Muslim
Praiseworthy; Greatly Praised; Name of the Last Prophet; Praised One; Variant of Muhammad
VIDEO MODULATION
VIDEO MODULATION
VIDEO MODULATION
VIDEO MODULATION
VIDEO MODULATION
n.
A vireo (Vireo altiloquus) native of the West Indies and Florida; -- called also black-whiskered vireo.
n.
A regular succession of tones or chords; the movement of the parts in harmony; the order of the modulations in a piece from key to key.
a.
Applied to an air or modulation of harmony which moves by easy and smooth transitions, digressing but little from the original key.
n.
An ideo-motor movement.
n.
The tonic or first tone of the scale in which a piece or passage is written; the fundamental tone of the chord, to which all the modulations of the piece are referred; -- called also key tone.
n.
An affected modulation of the voice; a kind of nasal sound.
n.
A direct or indirect passing from one key to another; a modulation.
n.
A change of key, whether transient, or until the music becomes established in the new key; a shifting of the tonality of a piece, so that the harmonies all center upon a new keynote or tonic; the art of transition out of the original key into one nearly related, and so on, it may be, by successive changes, into a key quite remote. There are also sudden and unprepared modulations.
n.
l. (Zool.) One of numerous species of small American singing birds, of the genus Vireo, as the solitary, or blue-headed (Vireo solitarius); the brotherly-love (V. Philadelphicus); the warbling greenlet (V. gilvus); the yellow-throated greenlet (V. flavifrons) and others. See Vireo.
v. t.
To utter with musical infections or modulations of voice.
n.
The fundamental tone of a movement to which its modulations are referred, and with which it generally begins and ends; keynote.
n.
Accent, or inflection or modulation of the voice, as adapted to express emotion or passion.
n.
That which is sung or uttered with musical modulations of the voice, whether of a human being or of a bird, insect, etc.
n.
Any one of numerous species of American singing birds belonging to Vireo and allied genera of the family Vireonidae. In many of the species the back is greenish, or olive-colored. Called also greenlet.
v. i.
To utter sounds with musical inflections or melodious modulations of voice, as fancy may dictate, or according to the notes of a song or tune, or of a given part (as alto, tenor, etc.) in a chorus or concerted piece.
n.
A quavering modulation of the voice; a musical trill; a song.
a.
Applied to those actions, or muscular movements, which are automatic expressions of dominant ideas, rather than the result of distinct volitional efforts, as the act of expressing the thoughts in speech, or in writing, while the mind is occupied in the composition of the sentence.
n.
The act of modulating, or the state of being modulated; as, the modulation of the voice.