F V E N T H
`
`DICTIONARY
`
`
`ICUTTOe
`
`r
`
`
`ParkerVision Ex. 2025
`IPR2021-00990
`Page 1 of 3
`
`

`

`Newnes is an imprint of Butterworth-Heinemann.
`
`Copyright 0 1999 by Rudolf F. Graf
`
`-&A
`
`member of the Reed Elsevier Group.
`
`All rights reserved.
`
`No part of this publication may be reproduced, stored in a retrieval system, or transmitted
`in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
`without the prior written permission of the publisher.
`
`Recognizing the importance of preserving what has been written, Butterworth-Heinemann
`prints its books on acid-free paper whenever possible.
`
`* * > l l i r \ F O l r l T I
`
`Butterworth-Heinemann supports the efforts of American Forests and the Global
`GLBBAL- ReLeaf program in its campaign for the betterment of trees,
`forests, and our environment.
`
`Library of Congress Cataloging-in-Publication Data
`
`Graf, Rudolf F.
`Modem dictionary of electronics / Rudolf F. Graf.-7th
`revised and updated.
`p.
`cm.
`ISBN 0-7506-9866-7 (alk. paper)
`1. Electronics -Dictionaries.
`I. Title
`TK7804.G67 1999
`621.38 1 '03 - dc21
`
`ed.,
`
`99-17889
`CIP
`
`British Library Cataloguing-in-Publication Data
`A catalogue record for this book is available from the British Library.
`
`The publisher offers special discounts on bulk orders of this book.
`For information, please contact:
`Manager of Special Sales
`Butterworth-Heinemann
`225 Wildwood Avenue
`Wobm, MA 01801-2041
`Tel: 781-904-2500
`Fax: 78 1-904-2620
`
`For information on all Butterworth-Heinemann publications available, contact
`our World Wide Web home page at: http://www.bh.com
`
`1 0 9 8 7 6 5 4 3 2 1
`
`Typeset by Laser Words, Madras, India
`Printed in the United States of America
`
`ParkerVision Ex. 2025
`IPR2021-00990
`Page 2 of 3
`
`

`

`43 1
`
`alkali metal used in the construction of
`lithium -An
`photocells and batteries.
`lithium chloride sensor- Also called Dunmore
`cell. A hygroscopic element that has fast response,
`high accuracy, and good long-term stability and whose
`resistance is a function of relative humidity.
`lithium-ion -Abbreviated LiON. A rechargeable bat-
`tery technology that is able to produce considerably more
`charge than comparable size nickel-cadmium or nickel-
`metal hydride batteries.
`lithography-A method of defining patterns for
`semiconductor device processing. Patterns are most fre-
`quently produced in thin films of materials called resists,
`which then resist a subsequent processing step being
`applied 'to an underlying material in accordance with that
`pattern. In typical semiconductor integrated-circuit fab-
`rication, many different patterns are used to delineate
`features in a sequence of processing steps.
`lit2 wire- Also called Litzendraht wire. A conductor
`composed of a number of fine, separately insulated strands
`that are woven together so that each strand successively
`takes up all possible positions in the cross section of
`the entire conductor. Litz wire gives reduced skin effect,
`hence, lower resistance to high-frequency currents.
`live -- 1. A term applied to a circuit through which
`current is flowing. 2. Connected to a source of an
`electrical voltage. 3. Charged to an electrical potential
`different from that of the earth. 4. Reverberant, as a room
`in which there are reflections of sound. 5. A program that
`is transmitted as it happens, with no delay.
`live cable test cap-A
`protective cap placed over
`the end of a cable to insulate the cable and seal its sheath.
`live end-The
`end of a radio studio where the
`reflection of sound is greatest.
`liwe parts - Metallic portions of equipment that are
`at a potential different from that of the earth.
`live room-A
`room with a minimum of sound-
`absorptive material, such as drapes, upholstered furniture,
`rugs, etc. Because of the many reflecting surfaces, any
`sound produced in the room will have a long reverberation
`time.
`LLW'-AISQ LLLTV and L3TV. Abbreviation for
`low-light television and low-light-level television. A
`CCTV system capable of operating with scene illumina-
`tion less than 0.5 lumen/ft2.
`LNA- See low-noise amplifier.
`-Abbreviation for low-noise block downcon-
`microwave amplifier that converts a block of
`frequencies to a lower frequency. LNBs for satellite TV
`typically convert C- and Ku-band signals to a frequency
`band of 950 to 1450 MHz for input to the receiver.
`LNC-See
`low-noise converter.
`L-neUwOrk- A network composed of two impedance
`branches in series. The free ends are connected to one pair
`of termiinals, and the junction point and one free end are
`connected to another pair.
`local oscillator.
`LO --See
`sad - 1. The power consumed by a machine or
`circuit in performing its function. 2. A resistor or other
`impedance that can replace some circuit element. 3. The
`power delivered by a machine. 4. A device that absorbs
`power and converts it into the desired form. 5. The
`impedance to which energy is being supplied. 6. Also
`called vvork. The material heated by a dielectric or
`induction heater. 7. In a computer, to fill the internal
`storage with information obtained from auxiliary or
`external storage. 8. The resistance or impedance that
`the input of one device offers to the output of another
`device to which it is connected. See input impedance;
`termination, 1. 9. The circuit or transducer (e.g., speaker)
`
`lithium - loaded applicator impe
`
`connected to the output of an amplifier. The source (e.g.,
`pickup) is loaded by the amplifier's input impedance.
`10. The electrical demand placed on a circuit or a
`system by the utilization equipment connected to it.
`Also, any piece of electrical utilization equipment of any
`given rating so connected. 11. To feed a program into
`a computer system. A common means of loading the
`program is via a form of magnetic media. The media is
`inserted into the media drive and the program read into
`the system's memory.
`load and go-In
`a computer, an operation and
`compiling technique in which the pseudo language is
`converted directly to machine language and the program
`is then run without the creation of an output machine-
`language program.
`load balance -See
`load division.
`connector designed to
`loadbreak connector-A
`close and interrupt current on energized circuits.
`load cell - 1. Transducer that measures an applied
`load by a change in its properties, such as a change
`in resistance (strain-gage load cell), pressure (hydraulic
`load cell), etc. 2. A device that produces an output signal
`proportional to the applied weight or force.
`load circuit-The
`complete circuit required to trans-
`fer power from a source to a load (e.g., an electron tube).
`load-circuit efficiency-In
`a load circuit, the ratio
`between its input power and the power it delivers to the
`load.
`load-circuit power input -The power delivered
`to the load circuit. It is the product of the alternating
`component of the voltage across the load circuit and the
`current passing through it (both root-mean-square values),
`times their power factor.
`load coil-Also
`called a work coil. In induction
`heaters, a coil that, when energized with an alternating
`current, induces energy into the item being heated.
`load curve-A
`curve of power versus time--.e.,
`the value of a specified load for each unit of the period
`covered.
`load divider-A
`device for distributing power.
`load division-Also
`called load balance. A control
`function that divides the load in a prescribed manner
`between two or more power sources supplying the same
`load.
`loaded antenna-1. An antenna to which extra
`inductance or capacitance has been added to change its
`electrical (but not its physical) length. 2. An antenna
`employing a loading coil at its base or above its base
`to achieve the required electrical length using physically
`shorter elements.
`
`--- WHIP
`
`Loaded
`antenna.
`
`loaded applicator impedance -In
`dielectric
`heating, the complex impedance measured at the point
`of application with the load material properly positioned
`for heating and at the specified frequency.
`
`ParkerVision Ex. 2025
`IPR2021-00990
`Page 3 of 3
`
`