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`An American National Standard
`Acknowledged as An American National Standard
`July 8, 1988
`
`IEEE
`Standard Dictionary
`of
`Electrical and
`Electronics
`Terms
`
`Fourth Edition
`
`·-------, I
`~NM : I
`
`u
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`ode
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`1
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`NETAPP ET AL. EXHIBIT 1009
`Page 1 of 4
`
`

`

`..,...
`I
`
`Library of Congress Catalog Number 88-082198
`ISBN: 1-55937-000-9
`© Copyright 1988
`The Institute of Electrical and Electronics Engineers, Inc
`
`No part of this publication may be reproduced in any form,
`in an electronic retrieval system or otherwise,
`without the prior written permission of the publisher.
`
`November 3, 1988
`
`SH12070
`
`2
`
`NETAPP ET AL. EXHIBIT 1009
`Page 2 of 4
`
`

`

`interchange circuit
`
`1ces and the image
`minal network. See:
`67
`space between elec-
`125
`wave tubes). A mea(cid:173)
`strength at the elee(cid:173)
`le interaction circuit.
`'wing equation
`
`p
`
`: electric field at the
`e angular frequency,
`se velocity, and P is
`'ield strength is not
`~tive interaction im-
`125
`: interaction loss ex(cid:173)
`logarithm to base 10
`::a! of the interaction
`
`· tubes). A region of
`ons interact with an
`125
`to a system in which
`.se from the system.
`434
`fwo or more tapes,
`on, applied simulta(cid:173)
`portion of each tape
`64
`1pe.
`~ny plane that con(cid:173)
`:ssive cardinal planes
`Lr position. Note: In
`are located by divid(cid:173)
`) cardinal plane into
`to bisect the angle so
`iinal plane between
`Ill
`vision receiving sys(cid:173)
`carrier and the asso(cid:173)
`lduces an intermedi(cid:173)
`nce between the two
`:ermediate frequency
`lance with the sound
`328
`.g systems). A call to
`reaches an operator,
`vacant-code tone.
`
`55
`ing systems). A cen(cid:173)
`be reached by a call
`mber, or line out-of-
`55
`apparatus bushing).
`G power transformers
`168
`ssion). The length of
`
`interchange energy
`
`489
`
`interface
`
`cable used for signaling between the digital subset and
`59
`the customer's equipment.
`interchange energy (power operations). Energy deliv(cid:173)
`ered to or received by one electric system from anoth(cid:173)
`516
`er.
`interchannel interference (modulation system). In a
`given channel, the interference resulting from signals
`242
`in one or more other channels.
`interclutter visibility (radar). The ability of a radar to
`detect moving targets which occur in resolution cells
`between points of strong clutter; usually applied to
`moving-target indication or pulse-Doppler radars. The
`higher the radar range or angle resolution, the better
`the interclutter visibility, since a smaller fraction of
`13
`the cells contain strong point clutter.
`intercom (interphone). The interference resulting from
`signals in one or more other channels.See: intercom(cid:173)
`242
`municating system.
`intercommunicating system (intercom) (interphone).
`A privately owned two-way communication system
`without a central switchboard, usually limited to a
`single vehicle, building, or plant area. Stations may or
`may not be equipped to originate a call but can answer
`328
`any call.
`interconnected delta connection (power and distribu·
`tion transformer). A three-phase connection using six
`windings (two per phase) connected in a six-sided
`circuit with six bushings to provide a fixed phase-shift
`between two three-phase circuits without change in
`voltage magnitude. Note: The interconnected delta
`connection is sometimes described as a "hexagon
`53
`autotransformer," or a "squashed delta."
`interconnected star connection of polyphase circuits.
`See: zig-zag connection of polyphase circuits.
`interconnected system (electric power systems). A
`system consisting of two or more individual power
`systems normally operating with connecting tie lines.
`94 200
`See: power system.
`interconnecting channel (of a supervisory sy~tem)
`(power switchgear). The transmission link, such as the
`direct wire, carrier, or microwave channel (including
`the direct current, tones, etcetera) by which supervi(cid:173)
`sory control or indication signals or selected telemeter
`readings are transmitted between the master station
`and the remote station or stations, in a single supervi(cid:173)
`103
`sory system.
`interconnection device. See: ·adapter.
`interconnection diagram (packaging machinery). A
`diagram showing the connections between the termi(cid:173)
`nals in the control panel and outside points, such as
`429
`connections to motors and auxiliary devices.
`interconnection tie. A feeder interconnecting two elec(cid:173)
`tric supply systems. Note: The normal flow of energy
`in such a feeder may be in either direction. See: center
`64
`of distribution.
`interconnect See: segment interconnect; buffered in·
`terconnect.
`interdendritic corrosion. Corrosive attack that pro(cid:173)
`gresses preferentially along interdendritic paths. Note:
`This type of attack results from local differences in
`composition, that is, coring, commonly encountered
`205
`in alloy castings.
`
`interdigit (interdigital) time (measuring the perfor(cid:173)
`mance of tone address signaling systems). The time
`interval between successive signal present intervals
`during which no signal present condition exists. This
`time includes the signal off condition and transition
`intervals between signal off condition and signal pres(cid:173)
`508
`ent condition on both state transitions.
`interdigital magnetron. A magnetron having axial
`anode segments around the cathode, alternate seg(cid:173)
`ments being connected together at one end, remaining
`segments connected together at the opposite end.
`190, 125
`interdigit interval (telephony)(dial-pulse address sig·
`naling systems). In dial-pulse signaling, an extended
`make interval used to separate and distinguish succes(cid:173)
`540
`sive dial-pulse address digits.
`interelectrode capacitance (j-I interelectrode capaci·
`tance C;1 of ann-terminal electrode tube). The capac(cid:173)
`itance determined from the short-circuit transfer ad(cid:173)
`mittance between the jth and the Jth terminals. Note:
`This quantity is often referred to as direct interelec(cid:173)
`trode capacitance. See: electron-tube admittance.
`125
`transadmittance (j-I interelectrode
`interelectrode
`transadmittance of ann-electrode electron tube). The
`short-circuit transfer admittance from the jth elec(cid:173)
`trode to the lth electrode. See: electron-tube admit·
`125
`tances.
`interelectrode transconductance (j-I interelectrode
`transconductance). The real part of the j-1 interelec(cid:173)
`transadmittance. See: electron-tube admit·
`trode
`125
`tances.
`interelement influences (polyphase wattmeters). The
`percentage change in the recorded value that is caused
`solely by the action of the stray field of one element
`upon the other element. Note: This influence is deter(cid:173)
`mined at the specified frequency of calibration with
`rated current and rated voltage in phase on both ele·
`ments or such lesser value of equal currents in both
`elements as gives end-scale deflection. Both current
`and voltage in one element shall then be reversed and
`for rating purposes, one-half the difference i~ th~
`readings in percent is the interelement influence. See:
`280 294
`accuracy rating (instrument).
`interface (general-system term)(l)(696 interfac~ de·
`vices). A shared electrical boundary between parts of
`a computer system, through which information is con(cid:173)
`538
`veyed.
`(2)(microcomputer system bus). A shared boundary
`between two systems, or between parts of systems,
`542
`through which information is conveyed.
`(3)(microprocessor operating systems). A shared
`boundary between two layers or modules of software.
`478
`(4)(watthour meters). The means for transmitting in(cid:173)
`formation between a solid-state time-of-use register
`· 485
`and peripheral equipment.
`255, 77
`(S)(general). A shared boundary.
`(6) (nuclear power generating stations) (class lE
`equipment). A junction or junctions between a Class
`IE equipment and another equipment or device. (Ex-
`
`3
`
`NETAPP ET AL. EXHIBIT 1009
`Page 3 of 4
`
`

`

`interface-CCITI
`
`490
`
`interference
`
`amples: connection boxes, splices, terminal boards,
`electrical connections, grommets, gaskets, cables,
`conduits, enclosures, etcetera.)
`120, 31
`(7)(programmable
`instrumentation). A
`shared
`boundary between a considered system and another
`system, or between parts of a system, through which
`information is conveyed.
`40
`(8) (test, measurement and diagnostic equipment). A
`shared boundary involving the specification of the in(cid:173)
`terconnection between two equipments or systems.
`The specification includes the type, quantity and
`function of the interconnection circuits and the type
`and form of signals to be interchanged via those cir(cid:173)
`cuits. See: adapter.
`54
`(9)(data transmission). (A) A common boundary-for
`example, a physical connection between two systems
`or two devices. The boundary may be mechanical such
`as the physical surfaces and spacings in mating parts,
`modules, components, or subsystems, or electrical,
`such as matching signal levels, impedances, or power
`levels of two or more subsystems.(B) A concept in(cid:173)
`volving the specification of the interconnection be·
`tween two equipments or systems. The specification
`includes the type, quantity, and function of the inter·
`connection circuits and the type and form of signals to
`be interchanged by these circuits.
`59
`(10) (software). (1) A shared boundary. An interface
`might be a hardware component to link two devices or
`it might be a portion of storage or registers accessed
`by two or more computer programs. (2) To interact or
`communicate with another system component. See:
`computer program; hardware component; system
`component.
`434
`(11) (programmable instrumentation). A common
`boundary between a considered system and another
`system, or between parts of a system, through which
`information is conveyed.
`378
`interface-CCITI (data transmission). The present Eu(cid:173)
`ropean and possible world standard for interface re(cid:173)
`quirements between data processing terminal equip(cid:173)
`ment and data communciation equipment. The
`CCITT standard resembles very closely the American
`EIA, Standard RS-232-C. This standard is considered
`mandatory in Europe and on the other continents.
`59
`interface control (software configuration management
`plans). The process of (1) identifying all functional
`and physical characteristics relevant to the interfacing
`of two or more configuration items provided by one or
`more organizations; (2) ensuring that proposed
`changes to these characteristics are evaluated and ap(cid:173)
`proved prior to implementation. See: baseline; con(cid:173)
`figuration item; configuration management; configu(cid:173)
`ration control; configuration control board; configu·
`ration audit; configuration identification; configura(cid:173)
`tion status accounting; software library.
`546
`interface-EIA standard RS-232-C (data transmis(cid:173)
`sion). A standardized method adopted by the Elec(cid:173)
`tronic Industries Association to ensure uniformity of
`interface between data communication equipment and
`data processing terminal equipment. The standard in-
`
`terface has been generally accepted by a great majority
`of the manufacturers of data transmission and business
`equipment.
`59
`interface--MIL STD 188B (data transmission). The
`standard method of interface established by the De(cid:173)
`partment of Defense and is presently mandatory for
`use by the departments and agencies of the Depart(cid:173)
`ment of Defense for the installation of all new equip(cid:173)
`ment. This standard provides the interface require(cid:173)
`ments for interconnection between data communica(cid:173)
`tion security devices, data processing equipment, or
`other special military terminal devices.
`59
`interface, operating (connector). The surfaces at which
`a connector is normally separated.
`134
`interface requirement (software)~ A requirement that
`specifies a hardware, software, or data base element
`with which a system or system component must inter(cid:173)
`face, or that sets forth constraints on formats, timing,
`or other factors caused by such an interface. See: data
`base; hardware; interface; requirement; software;
`system.
`434
`interface specification (software). A specification that
`sets forth the interface requirements for a system or
`system component. See: component; interface re(cid:173)
`quirement; specification; system.
`434
`interface system (general-system term)(1)(696 inter(cid:173)
`face devices). The device independent functional,
`electrical, and mechanical elements of an interface
`necessary to effect unambiguous communication
`among a set of devices. Driver and receiver circuits,
`signal line descriptions, timing and control conven(cid:173)
`tions, data transfer protocols, and functional logic cir(cid:173)
`cuits are typical system elements kilobyte 1024 = 2
`10megabyte 1 048 576 = 220
`538
`(2)(microcomputer system bus). The device-depen(cid:173)
`dent electrical and functional interface elements ne(cid:173)
`cessary for communication between devices. Typical
`elements are: driver and receiver circuits, signal line
`descriptions, timing and control conventions, and
`functional logic circuits.
`542
`(3)(programmable instrumentation). The device-in(cid:173)
`dependent mechanical, electrical, and functional ele(cid:173)
`ments of an interface necessary to effect communica(cid:173)
`tion among a set of devices. Cables, connector, driver
`and receiver circuits, signal line descriptions, timing
`and control conventions, and functional logic circuits
`are typical interface system elements.
`40
`interface testing (software). Testing conducted to en(cid:173)
`sure that program or system components pass infor(cid:173)
`mation or control correctly to one another. See: pro·
`gram; system component; testing.
`434
`interfacial connection (soldered connections). A con(cid:173)
`ductor that connects conductive patterns on opposite
`sides of the base material.
`284
`interference (1) (data transmission). In a signal trans(cid:173)
`mission path, either extraneous power which tends to
`interfere with the reception of the desired signals or
`the disturbance of signal which results.
`59
`(2)
`(electric-power-system measurements). Any
`spurious voltage or current appearing in the circuits of
`the instrument. Note: The source of each type of in-
`
`4
`
`NETAPP ET AL. EXHIBIT 1009
`Page 4 of 4
`
`