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Term
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Description
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EBU
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Abbreviation for European Broadcasting Union.
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ECB
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Electronic Codebook
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ECG
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(or EKG) ElectroCardioGraphy. It is used in heartbeat measurement.
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Echo
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A signal that has been reflected or otherwise returned with
sufficient magnitude and delay to be perceived by the speaker.
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ECM
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Entitlement Control Messages are private Conditional Access
information which maintain the ordered authorization.
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EDA
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Acronym for Electronic Design Automation. Software design
tools, like synthesis, schematic capture, and simulation.
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Edge Enhancement
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A generic term for the edge-smoothing technique which reduce
the jagged appearance of angled lines on laser printers, as
used in HP's Resolution Enhancement Technology, and copied
by many other printer manufacturers.
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EDIF
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Acronym for Electronic Design Interchange Format. An industry-standard
netlist format used when passing information between different
software tools.
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EDO RAM
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Acronym for Extended Data Out DRAM. Type of DRAM that is
faster than conventional DRAM.
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EEG
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ElectroEncephaloGram. It is used in brain wave measurements.
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EEPROM
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Electrically Erasable Programmable Read Only Memory. It is
the memory that can be programmed and erased electrically.
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EIT
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Abbreviation for Event Information Table.
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Electronic Commerce
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The exchange of goods, services, and fiduciary information
or instruments via distributed computer and communications
networks.
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Electronic Gaming Devices or Gaming Consoles
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Videogame consoles are consumer devices / information appliances
that deliver electronic games-based entertainment for household
consumption. These usually feature proprietary hardware designs
and software OS (operating systems). They rely primarily on
AC power as primary energy source & must be plugged into
an external video display such as a TV and can also provide
Internet & e-mail access.
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E-mail terminals
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Standalone, non-portable, consumer-oriented devices that
are dedicated for accessing e-mail without web browsing capabilities.
These do not provide Web browsers or additional applications.
It includes keyboard, small LCD screen, some soft function
keys.
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Embedded controller
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The class of microcontrollers used to support OEM-specific
implementations in mobile, networking and consumer environments.
The embedded controller performs complex low-level functions
through a simple interface to the host microprocessor(s).
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Embedded memory
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Dedictated memory function that has been implemented within
an FPGA device.
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Embedded Microcontroller
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Microcontrollers are sometimes called embedded microcontrollers,
which means that they are part of an embedded system -- that
is, one part of a larger device or system.
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EMI, RFI
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Electro Magnetic Interference/Radio Frequency Interference.
Broad spectrum noise or interfering signals.
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EMM
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Entitlement Management Messages are private Conditional Access
information which specify the authorization levels or the
services of specific decoders. They may be addressed to an
individual decoder or groups of decoders.
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Emulation
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A generic term for a printer language. Most printers mimic
or "emulate" the behavior of the market-leading models of
printer by copying their printer language.
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Encoder
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A device that encodes/encrypts the signal before transmission.
The block responsible for appending extra bits to the digital
data before transmitting.
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Encoding
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A process in which information is transformed into an equivalent
set of values by following a known, predefined mathematical
rule or algorithm.
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Encryption
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The technique of applying a specific algorithm to data in
order to alter/encrypt the data's appearance and prevent other
devices from reading information. Decryption applies the algorithm
in reverse to restore the data to its original form. This
process modifies a bit stream so that it appears random. Encryption
is used for security purposes. The sender and receiver must
both employ the same encryption method.
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Encryption Algorithm
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The mathematical method by which an encryption key is combined
with plaintext to form encrypted or ciphertext and to return
ciphertext to its original plaintext form.
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Energy Star
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Dept. of Energy low power product classification typically
used for appliance and office equipment.
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Engine
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Normally an abbreviation of printer engine, the mechanism
which "writes" a bitmap onto paper.
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EOF
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End of Frame
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EPAC
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Enhanced Perceptual Audio Coder. Codec was developed by Lucent
Technologies and originally created at Bell Labs. The technology
compresses audio at a rate of 1:11.
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EPG
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A software that enables viewers to navigate easily amongst
the large number of channels provided by digital technology
in order to select the service they desire.
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EPROM
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Acronym for Electrically Programmable Read Only Memory. It
is programmed or erased using a ultraviolet source.
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Error control
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The error control is responsible for detection of transmission
errors and, where appropriate, for the retransmissions.
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Error Correction Mode
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Due to the high compression factors used in MPEG decoding
of digital signals, Error Correction Modes become necessary
to avoid any significant loss of bit information during signal
transmission. Commonly applied are Reed-Solomon Codes. The
efficiency of error correction modes are defined by the so
called bit error rate (BER), which gives the quotient received
bits to the total number of transmitted bits in a specified
time period.
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Error Polynomial
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A polynomial used in one of the steps during decoding.
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Escape Code
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A special control character used by computers and printers,
character number 27 decimal, 1B hexa-decimal in the standard
ASCII character set.
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Escape Code Language
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A printer language in which each command is preceded by
a special character, normally the escape code, to signify
that what follows is a command rather than data.
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Escape Sequence
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A sequence of characters which form a command to be obeyed
by the printer, preceded by the escape code and ended with
a termination character.
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Ethernet
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10 Mbps LAN protocol.
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Ethernet address
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An Ethernet address is a six-part hexadecimal number in which
a colon separates each part (for example, 8:0:20:1:2f:0).
This number identifies the Ethernet board installed in a PC
and is used to identify the PC as a member of the network.
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Ethernet, IEEE 802.3
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An international networking IEEE local area network (LAN)
standard, IEEE 802.3, defines the transmission of data using
a bus topology and CSMA/CD, over copper wire at a rate of
10, 100, 1000 Mbps and beyond. Although IEEE 802.3 is technically
not Ethernet, the name is commonly used. This LAN protocol
was developed by Xerox Corporation in cooperation with DEC
and Intel in 1976. The Ethernet specification served as the
basis for the IEEE 802.3 standard, which specifies the physical
and lower software layers. Ethernet, which is one of the most
widely implemented LAN standards, is a type of wired network
that supports high speed communications among devices over
a coaxial cable. It uses the CSMA/CD access method to handle
simultaneous demands. A newer version of Ethernet, called
100Base-T (or Fast Ethernet), supports data transfer rates
of 100 Mbps. And the newest version, Gigabit Ethernet supports
data rates of 1 gigabit (1,000 megabits) per second.
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ETS
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European Telecommunication Standard.
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ETSI
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European Telecommunications Standards Institute. The pan-European
communications regulatory standards board.
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Euclid
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A 3rd -4th century (ca. 300) BC Greek mathematician whose
work served as the basis for modern geometry.
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Evariste Galois
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Famous for his contributions to group theory, by producing
a method of determining when a general equation could be solved
by radicals.
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Event
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A grouping of elementary broadcast data streams with a defined
start and end time belonging to a common service, e.g. first
half of a football match, News Flash, a talk show.
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Event Manager (HAVi)
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One of the Software Elements that provide certain functionality.
In addition to the Event Manger, the Software Elements that
are needed for interoperability between HAVi devices are the
Messaging System, Registry, Resource Manager, Stream Manager,
DCM.
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Extension point
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A base-station two-radio transceiver that bridges the gap
between a wireless client and an access point or between a
wireless client and another extension point.
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