IEEE 100
`The Authoritative Dictionary of
`IEEE Standards Terms
`
`Seventh Edition
`
`
`
`*IEEE
`
`Exhibit 3001
`
`

`

`compound microstrip
`
`207
`
`computer
`
`compound microstrip A microstrip line in which the substrate
`consists of two or more layers of different electromagnetic
`properties.
`(MTP) 1004-1987
`compound rectangular horn antenna A horn antenna of rec-
`langular cross section in which at least one pair of opposing
`sides has two or more abrupt changes offlare angle or spac-
`ing,
`(AP/ANT) 145-1993
`compound source-rectifier exciter (1) (excitation systems for
`synchronous machines} An exciter whose energy is derived
`from the currents and potentials of the ac terminals of the
`synchronous machine and converted to direct current by rec-
`tifiers, The exciter included the powertransformers (current
`and potential), reactors, and rectifiers which may be either
`noncontrolled or controlled, including gate circuitry. It is ex-
`clusive of input control elements.
`(PE/EDPG) 421.1-1986r
`{2) (synchronous machines) An exciter whose energy is de-
`rived from the currents and potentials of the alternating cur-
`rent terminals of the synchronous machine and converted to
`direct current by rectifiers, Nofes: 1. The exciter includes the
`powertransformers (current and potential), power reactors,
`and power rectifiers which may be e#her noncontrofled or
`comrolied, including gate circuitry. 2, It is exclusive of input
`control elements.
`(PE/EDPG) 421-1972s
`compound target* This term has been usedto mean either com-
`piex target or distributed target. Because of its ambiguity, it
`is deprecated.
`(AES/RS) 686-1990
`* Deprecated.
`
`compound-wound A qualifying term appliedto a direct-current
`machine to denote that the excitation is supplied by two types
`of windings, shunt and series. Note; When the electromag-
`nelic effects of the two windings are in the same direction,it
`is termed cumulative compound wound; when opposed, dif-
`ferential compound wound. See also: divect-current commu-
`tating machine.
`CEEC/PE) [119]
`compound-wound generator A de generatorthat has two sep-
`arate field windings. One supplies the predominating excita-
`tion, and is connected in parallel with the armature circuit,
`The other supplies only partial excitation andis connected in
`series with the armature circuit. It is proportioned to require
`an equalizer connection for satisfactory parallet operation.
`(IA/MT) 45-1998
`compound-wound metor A de motorthat has two separate field
`windings: one, usuaily the predominating field, connected in
`parallel with the armature circuit, and the other connected in
`series with the armature circuit. Speed and torque character-
`istics are between those of shunt and series motors.
`(A/MT) 45-1998
`compressed-air circuit breaker See: circuit breaker.
`compressed file A file that has been transformed in a manner
`intended to reduce its size without loss of information,
`{C/PA) 1387,2-1995
`compression {1) (data transmission) A process in which ihe
`effective gain applied to a signal is varied as a function ofthe
`signal magnitude, the effective gain being greater for small
`rather than for large signals.
`(PE) 599-1985w
`(2) {television} The reduction in gain at one level of a picture
`signal with respect to the gain at another level of the same
`signal. Note: The gain referred to in the definition is for a
`signal amplitude small in comparison with the total peak-to-
`peak picture signal involved. A quantitative evaluation of this
`effect can be obtained by a measurement of differential gain,
`See also: white compression; black compression; television,
`{BIVAV) [34]
`(3) (oscillography) An increase in the deflection factor usu-
`ally as the limits of the quality area are exceeded. See alsa:
`oscillopraph.
`(IM/HFIM) [40]
`
`Note: A compressional plane wave is a longitudinal wave,
`(SP) [32]
`compression gain 10log of the ratio of the magnitude of the
`peak power of a compressed pulse to the RMS noise power
`measured. For an unweighted chirp pulse compressicn sys-
`tem, the value is 10log (TB), where TB is the time bandwidth
`product (in decibels).
`(UFFC) 1037-1992w
`compression joint (conductor stringing equipment) A tubular
`compressionfitting designed and fabricated from aluminum,
`copper, orsteel to join conductors or overhead ground wires.
`It is usuaily applied through the use of hydraulic or mechan-
`ical presses, However, in some cases, automatic, wedge, and
`explosive type joints are utilized. Synonyms: splice; sleeve;
`conductorsplice.
`{T&D/PE) 524a-1993r, 524-1992r
`compression point
`(nonlinear, active, and nonreciprocal
`waveguide components) The level of the output signal at
`which the gain of a device is reduced by a specified amount,
`usually expressed in decibels, as in the 1 dB compyession
`point,
`(MTT) 457-1982w
`compression ratio (gain or amplification) The ratio of(1) the
`magnitude of the gain (or amplification) at a reference signal
`level to (2) its magnitude at a higher stated signal level. See
`edso: amplifier.
`(ED) 161-1971w
`compressor (data transmission) A transducer, which for a
`given amplitude range of input voltages, produces a smailer
`range of output voltages, One important type of compressor
`employs the envelope of speech signals to reduce their vol-
`ume range by amplifying weak signals and attenuating strong
`signals.
`(PE) 599-1985w
`compressor-stator-blade-control system (gas turbines} A
`means by which the turbine compressor stator blades are ad-
`justed by vary the operating characteristics of the compressor.
`See aise: speed-governing system.
`(PE/EDPG) [5]
`COM printer See; computer ovtput microfilm printer,
`compromise A violation of the security of a system such that
`an unauthorized disclosure of sensitive information may have
`oceurred,
`(LM/C) 802.10-1992
`computation See: implicit computation.
`computational bandwidth The maximum number of opera-
`tions per second a machine can perform,
`
`(C) 610.10-1994w
`
`computational data See: fixed-point data.
`computational model A model consisting of well-defined pro-
`cedures that can be executed on a computer; for example, a
`model ofthe stock market, in the form of a set of equations
`and logic rules.
`(C) 610.3-£989w
`compute-bound Pertaining to programs that have an abundance
`of computations. Syzonym: process bound. Contrast: input-
`output bound.
`(C} 610.10-1994w
`computed tomography (CT) A medical diagnostic technique
`in which a computer is used to produce an image of cross-
`sections of the human body by using measured attenuation of
`X% rays through a cross-section of the body. Synonynz; com-
`pulter-assisted tomography. See afse: computer-aided {esting;
`computerized axial tomography.
`fC) 610.2-1987
`computer (1) (A} (emergencyand standby power) A machine
`for carrying out calculations. (B) {emergency and standby
`power) By extension, a machine for carrying out specified
`transformations on information.
`CIA/C/PSE) 446-1987, 165-1977
`(2} {A) (software) A functional unit that can perform sub-
`stantial computation, including numerous arithmetic opera-
`tions, or logic operations without intervention by a human
`operator during a run. (B) (software) A functional program-
`mable unit that consists of one or more associated processing
`units and peripheral equipment, that is controlled by inter-
`
`

`

`temporary master
`
`1162
`
`terminal
`
`(3) (A) (power quality monitering} A type of short-duration
`variation. (B) (power quality monitoring) The complete loss
`of voltage (< 0.1 pu} on one or more phase conductors fara
`time period between 3s and i min.
`(IA/PSE) 1160-1999
`temporary master See; master,
`temporary overvoltage (1) An oscillatory phase-to-ground or
`phase-to-phase overvoltage that is at a given Jocation ofrel-
`atively long duration (seconds, even minutes) and that is un-
`damped or only weakly damped. Temporary overvoltages
`usually originate from switching operationsor fauits (for ex-
`ample, load rejection, single-phase faul, fault on a high-re-
`sistance grounded or ungrounded system) or from nonlinear-
`ities (ferroresonance effects, harmonics), or both. They are
`characterized by the amplitude, the oscillation frequencies,
`the fotal duration, or the decrement.
`{C/PE/TR) 1313.1-1996, C57.12.80-1978r
`(2} An oscillatory overvoitage, associated with switching or
`faulis (for example, load rejection, single-phase faults) and/
`or nonlinearities (ferrorescnance effects, harmonics), of rel-
`atively long duration, which is undampedorslightly damped.
`(SPD/PE) C62.22-1997
`temporary storage (programming) Storage locations reserved
`for intermediate results. See also: working storage,
`(MIL/C)
`[23, 610.10-1994w, [85], [20]
`temporary structure See: crossing structure,
`TEM wave See: transverse-electramagnelic wave.
`10BASE-T {1} ISO/IEC 8802-3 Physical Layerspecification for
`Ethernet overtwo pairs of unshielded twisted pair (UTP) me-
`dia at 10 Mbit/s.
`(C/LM) 802,9a-1995w
`(2) TEEE 802.3 Physical Layer specification for a 10 Mb/s
`CSMA/CDlocal area network over two pairs of twisted-pair
`telephone wire.
`(C/LM) 802.3-1998
`10BASE2 IEEE 802.3 Physical Layer specification for a 10 Mb/
`s CSMA/CDlocal area network over RG 58 coaxial cable.
`(C/LM) 802,3-1998
`16BASE-F [EEE 802.3 Physical Layer specification for a ]0
`Mb/s CSMA/CDlocal area network over fiber optic cable.
`(C/LM) 802.3-1998
`10BASE-FBport A port on a repeater that contains an internal
`1OBASE-FB Medium Attachment Unit (MAU}that can con-
`nect to a similar port on another repeater.
`(C/LM) 802,3-1998
`LOBASE-FB segment A fiber optic link segment providing a
`point-to-point connection between two [OBASE-FB ports on
`repeaters.
`(C/LM) 802.3-1998
`1OBASES JEEE 802.3 Physical Layerspecification fora 10 Mb/
`s CSMA/CD local area network aver coaxial cable (i.c.,
`thicknet),
`(C/LM) &172.3-1998
`JOBASE-FL segment A fiber optic iink segment providing
`point-to-point connection between two 1OBASE-FL Medium
`Attachment Units (MAUs).
`(C/LM) 802.3-1998
`1OBASE-FP segment A fiber optic mixing segment, including
`one 1OBASE-FP Star and all of the attached fiberpairs.
`(C/LM) 802,3-1998
`JOBASE-FP Star A passive device that is used to couple fiber
`paits together to form a [OBASE-FP segment. Opticalsignals
`received at any input port of the LOBASE-FP Starare distrib-
`utedto all of its output ports (including the output port of the
`optical interface from which it was received). A 1OBASE-FP
`Star is typically comprised of a passive-star coupler, fiber
`optic connectors, and a suitable mechanica! housing,
`(C/LM) 802.3-1998
`10BROAD36 [EEE 802.3 Physical Layerspecification for a 10
`Mb/s CSMA/CDlocal area network over single broadband
`cable.
`(CALM) 802.3-1998
`
`is the THDBHA load. Synenyar: THDBH load. See afso: time-
`consistent traffic measures.
`(COM/TA) 973-1990w
`ten-minute reserve An additional amount of operating reserve
`sufficient to reduce area contro! error to zero within ten min-
`utes following the loss of generating capacity that would re-
`sult from the most severe single contingency.
`(PE/PSE) 858-1993w
`tens complement (mathematics of computing) The radix com-
`plement of a decimal numeral, which may be formed by sub-
`tracting each digit from9, then adding 1 to the least significant
`digit and executing any requiredcarries. For example, the fens
`complement of 4830 is 5170. Syreaym: complement onten,
`(C) 1084-1986w
`tension See: final unloaded conductor tension: conductor.
`tensioner See: bullwheel tensioner.
`tensioner, bullwheel See: bullwheel tensioner.
`tension site (conductor stringing equipment) The location on
`the line where the tensioner, reel stands, and anchors (snubs)
`are located. This site may also serve as the pull ortension site
`for the next sag section, Syronyms: payout site, conductor
`payout station; payout site; reel setup; conductor payout sta-
`tion; reel setup,
`(TE&D/PE) 5244-19931, 524-1992r
`tension stringing The use of pulfers and tensioners to keep the
`conductor under tension and positive contro! during the
`stringing phase, thus keeping it clear of the earth and other
`obstacles that could cause damage.
`(T&D/PE) 524-1992r
`tension, unleaded See: unloadedtension.
`tenth-power width (in a plane containing the direction of the
`maximum ofa lobe) The full angle between the twodirections
`in that plane about the maximumin which the radiation in-
`tensity is one-tenth the maximumvalue of the lobe. See also:
`antenna,
`(AP/ANT) 145-1983s
`tenuous medium A medium in which the spatial variations of
`constitutive parameters, either continuous or discrete, are
`small relative to their mean values.
`(AP/PROP} 211-1997
`tenure (f} (STEbus} The time during which a master has con-
`rroi of the bus.
`(C/MM)
`[000-1987r
`(2) (NuBus) Time period of unbroken ownership ofthe bus
`by a particular module. May consist of one or more transac-
`tions or attention cycles.
`(C/MM) 1196-1987 w
`teratology The study of developmental abnormalities in the fe-
`tus,
`(T&D/PE) 539-1990
`terdenary (A) Pertaining to a selection in which there are 13
`possible outcomes. (B) Pertaining to the numeration system
`with a radix of 13.
`(C) 1084-1986
`terminal (2) (A) (supervisory control, data acquisition, and
`autematic control} A point in a system or communication
`network at which data can either enter or leave. See also:
`virtual terminal. (B) (supervisory control, data acquisition,
`and automatic contrel) An input/output device capable of
`transmitting entries to and obtaining output from the system
`of which it is a part, for example cathode-ray tube (ert) ter-
`minal. (C) (power and distribution transformers) A con-
`ducting element of an equipment or a circuit intended for
`connection to an external conductor. {D} (power and distri-
`bution transformers) A device attached to a conductor to
`facilitate connection with another conductor. (Z) An input-
`output peripheral device capable of transmitting entries to and
`abtaining output from a system. See also: link-attached fer-
`minal; intelligent terminal; logical terminal; master terminal;
`smart terminal; output terminal; input terminal; video display
`terminal; graphic user termina!; facsimile terminal; dumb ter-
`minal; channel-attached terminal; job-oriented terminal: re-
`mote terminal; focal terminal.
`(SWG/SUB/PE/C/FR) C37. £-1987, C37, 100-1992,
`
`