Elan Microelectronics Corporation v. Apple, Inc.

Filing 214

Declaration of Jennifer Liu in Support of 212 MOTION for Partial Summary Judgment of Infringement of U.S. Patent 5,875,352 [Public Version] MOTION for Partial Summary Judgment of Infringement of U.S. Patent 5,875,352 [Public Version] filed byElan Microelectronics Corporation. (Attachments: # 1 Exhibit 1, # 2 Exhibit 2, # 3 Exhibit 3-6 MFN, # 4 Exhibit 7, # 5 Exhibit 8, # 6 Exhibit 9, # 7 Exhibit 10, # 8 Exhibit 11, # 9 Exhibit 12, # 10 Exhibit 13, # 11 Exhibit 14, # 12 Exhibit 15, # 13 Exhibit 16, # 14 Exhibit 17, # 15 Exhibit 18, # 16 Exhibit 19, # 17 Exhibit 20, # 18 Exhibit 21, # 19 Exhibit 22, # 20 Exhibit 23-25 MFN, # 21 Exhibit 26, # 22 Exhibit 27 MFN, # 23 Exhibit 28, # 24 Exhibit 29-33 MFN, # 25 Exhibit 34, # 26 Exhibit 35-37 MFN, # 27 Exhibit 38 Part 1, # 28 Exhibit 38 Part 2, # 29 Exhibit 38 Part 3, # 30 Exhibit 39-45 MFN, # 31 Exhibit 46, # 32 Exhibit 47 MFN, # 33 Exhibit 48)(Related document(s) 212 ) (Liu, Jennifer) (Filed on 5/24/2011)

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EXHIBIT 48 11111 11111111 1111111111111111111111111111111111111111111111111 III liii 11111 US005463388A United States Patent Patent Bole Date et MOUSE OR KEYBOARD COMPUTER INPUT CAPACITIVE SENSORS Number Inventors Robert Bole Westfield Ruedisueli Berkeley South Wagner 5012124 Gruaz 5/1992 Blonder 5122623 6/1992 Zank of all OTHER ATT Notice The 1PM Corp of portion the Coral Gables Ha term Art patent of of has al 178/18 178/19 al Second Electronics 889 Hill Cambridge been disclaimed Edition Horowitz and 1989 Press University ExaminerBrent Swarthout Primary this 2009 et et 341/33 al PUBLICATIONS Assistant ExaminerThomas Attorney May 12 to subsequent 341/33 et N.J The Assignee 1995 Hollaway 5/199 Eric Heights Plainfield 4/1991 5016008 Laurence Oct 31 of Patent 5113041 UTILIZING DEVICE 5463388 Agent or Jr Mullen Green FinnGeoffrey ABSTRACT No AppI 11040 computer Filed hit U.S Field Jan 29 1993 keyboard H03K Cl.6 17/94 of array CI 341133 of Search 341/33 345/174 and colunm and row 345/174 PATENT the determined in applications which 3/1988 Evans 4737768 4/1988 Lewiner 4772874 9/1988 341/33 al 2/1989 8/1989 Duncan 4893071 1/1990 Miller 4972496 11/1990 Sklarew 100 178/19 et from the the input applications in centroid the keyboard position is of used respect such capaci For mouse as information the input identifies of with microcontroller change which microcomputer the measuring The stylus in device position for row handheld grid Each the to the used device is key from 341/33 as Evans 4852443 or and in rows arranged and or an covering the 341/33 Hasegawa 4806709 For computer et are to circuitry calculated forwards microcontroller 4733222 is surface columns column finger which values in mouse computer electrodes connected as is array Cited DOCUMENTS such as insulating connected by each seen an object tance U.S is 178/1 to References Such be can capacitance 178/19 thin electrodes pattern for use device input comprises al 84/1.04 position identity of to the the touching object and forwards such key computer 324/660 10 178/18 Claims Drawing Sheets 401 404 APE L0007902 U.S Patent Oct 31 1995 Sheet of 5463388 FIG 100 102 01 110 APE L0007903 U.S Patent Oct 31 1995 Sheet of 5463388 FIG 100 203 204 FIG 204 APE L0007904 ID FIG 100 401 404 TO UTILIZING MEANS 411 410 APE L0007905 HHHH_I fl Li IIL IEI Cd --I cJ cD -7 71 -1 -1 rD rD 01 U.S Patent Oct 31 1995 Sheet 5463388 of FIG 1601 AND READ STORE CAPACITANCE INITIAL VALUES p602 READ AND CAPACITANCE SUBTRACT VALUES VALUES INITIAL _______ p603 ABOVE REMAINDERS THRESHOLD YES p604 COMPUTE VALUES AND AT CENTROID 605 FLAG SET p608 NO p606 SET dx AND dy FLAG j607 CLEAR COMPUTE REMOVE JITTER FLAG j-610 STORE AND VALUES r611 -----i READ OTHER INPUTS 612 YES STORE STATES OF SEND OTHER DATA INPUTS APE L0007907 U.S Patent Oct 31 1995 Sheet 5463388 of FIG START /801 __________ READ INITIAL AND STORE VALUES CAPACITANCE 8O2 _______ READ AND VALUES CAPACITANCE SUBTRACT INITIAL VALUES j809 CLEAR UT FLAG /803 ABOVE REMAINDERS THRESHOLD NO COMPUTE 8O5 AND AT CENTROID p806 DETERMINE TOUCHED KEY VALUES AND FROM STORED AND RANGES 807 SEND DATA 8O8 SET FLAG APE L0007908 5463388 COMPUTER MOUSE OR KEYBOARD INPUT CAPACiTIVE SENSORS UTILIZING DEVICE can be measured into the coordinates This the invention relates to movement or position for capacitively sensors an object of such sensing as the surface to Numerous on devices Blonder discloses which from signals lines embedded Blair Evans the mined the the sensing not relative stylus to U.S No Pat tablets 4806709 the such device input such that as of umns other tive such programs windows mouse for in screen as computers display screen of of in the FIG direction surface on cursor of cumbersome with larly more are the as such devices because mice circuit to flow is FIG 35 chart of can be FIG using of the the flow is it is of use It invention mouse particu However such is desirable or for to tions can as such an connection other or able to be does for means use 50 of of position with centroid The of an of object to respect the the such two-dimensional as values can be invention arranged array the or finger is one capacitance or hand-held at for the the capacitive mouse capacitive of operation as or position the capacitive keyboard described terms of in with to those can to in the utilized sense com computer personal skilled be exemplary emulate to adapted for use clear that art in other of position if is the of principle shown rows and shown of an object as mouse by can used be with covered are of tiles adequate strokes array of other arrays with with electrodes electrode center is with of to thin gravity correspond object touching or array first 102 array which layer shown is 100 can in position be sensed the dimensional will in applications respect between capacitance 65 In two- are the for 110 shows 100 in array stylus dimensions dimension one Histogram The respect dimensional for the on not shown Finger to array 100 Electrode material is in arranged array found finger electrodes an in 100 array 101 electrodes we have sensor position Electrode columns which invention The the capacitive FIG in array computer desired one- only thin from each the applica more dimensions or is insulating be electrodes two the transmitting determined measured in one of array sizes comprises of plurality electrodes capacitance electrodes of covering of computer use of convenient is it pattern However require OF THE INVENTION sensor surface be or rectangular emulating 60 capacitive as showing invention invention positioned The be the in 4x4 of SUMMARY and electrodes operation invention keyboard will of grid as capable not the Fur information insulating or it square particu keyboard that stylus the keyboard embodiment operational without be used also device input handheld the will which in The but be invention device input example that functionality its that finger also functions an the amplifier DETAILED DESCRIPTION drawbacks space two-dimensional with integrating with as there in small keyboard losing desirable electrical an and deskable is capabilities in computer by operation control for multiple mouse without It computers an of showing chart of 40 puter computers to portable respect in the in can be trackballs These col corre on object shape use for and electrodes of diagram invention invention sensor position capacitively such ease of area ther with incorporated device and size for accordance in showing the diagram is of sensor principles furnish that lar their notebook fore such of sensor associated sensor The and joysticks interdigitated trackball movement room needed the apparent so-called sacrificing mice as of sensor arrangement diagram is two-dimensional Input in of rows intersections block overall position position the or trackball joystick an is bootstrap for interac causes other or at constructed sensor representation at the alternate an relationship capacitances invention detailed more and finger 30 video as and games and programs Movement such causes control such the the showing users dimensional two- is FIG by captured to information movement Similarly become descrip art on information the will detailed or mice joysticks with computer and OF THE DRAWING two-dimensional capacitive entered be also computer direction particular particular textual known used display movement sponding of were it of with in FIG are if as can graphical invention array means as on of the drawings diagram graphic components FIG cursor for input key forwards such or stylus finger such be can attached position is electrode tablets trackballs of aspects in FIG direct and is accordance for means for input systems text information devices input terminal be used Various identifies and object DES CRTPTION the electrodes from device of pressure can handwritten such position the FIG deter such information-transmitting tablets Graphical of the to used is means utilizing other from between be can requires information second to drawn currents sense such process keyboard and and BREEF 20 values first sensor tion layer such thereon spaced screen The that information graphical Other to the microcontroller touching or trackball information signal resistive having of of grid the transmit connection from touching The for use the the which micro- applications mouse change position in in For and 15 electrodes point the Computer means identification can be determined touch-screen finger require which of calculated emulate to applications keyboard position apparent 25 do the These with tablet stylus and tablet of itself electrical kinds of emulate from are divided row The and capacitances forwards means For column be and rows of position input the the to in the electrodes stylus of position discloses from point for computer transmitted position the the number of with 10 key known are INVENTION many of which relate to computer input to Greg example U.S Pat No 5113041 al et in stylus OF THE centroid used is sensor surfaces For tablets the the measured the microcontroller utilizing BACKGROUND objects which in on finger of from controller columns in each for can electrodes connected measured capacitances and OF THE INVENTION FIELD or the separately elements separate finger sampling 100 and moment to the position array 100 if of 102 of Such the finger capacitances distribution 102 The of such 111 finger suitable 101 for electrodes capacitances to 102 or sampling of centroid distribution some other criteria APE are L0007909 5463388 met that is by choosing when compared to the criteria are discussed electrodes of extent of Blonder in the small sufficiently the size al patent et for referred to The by and and coordinates such calculating sured Thus measurements of the be can fact however distribution correspond to the finger formed subdividing detail in four an at 201 and section of two by leads by leads 204 completely 100 have used 201 0.37 be will 202 can be circuit printed for tions clear 202 20 The converted and conduct surface 202 with than 406 we 25 are board row another plane Other of 204 trodes fabricated can see still in configuration of the which can configurations shows be horizontal However patent the thin by used FIG 400 in 100 array an is thus 204 Elec rows rows columns and elements as and shown in to an is shown in below Each by of the outputs 402 multiplexer The selected 403 where resistor convert the related to the 409 capacitance 402 RF noise in of drives base of to for example mouse computer such means 420 as particular and micro Intel Corpo micro 405 and converter 45 electrode Qi the by is connected coupling summing row 408 to detector circuit or be selected and provides an selected RF signal with finite 65 stray the circuit same serves of the in the trim resistor the position is via capacitance of at the output AAC/C oscillator 408 507 Resistor 508 and resistor 504 505 Qi capacitances RF from minimize 408 due Qi and be compensated in in The the to Qi of transistor transistors can shown sensor of signal mini- 411 plane oscillator any circuit of guard wiring are capacitances and circuit 109 505 amplifier from amplifier biasing capacitance the Qi capacitor signal to transistor approximately extraneous RF from signal electrodes all in as increase an flowing of in for transistor other Such amplitude electrode-to-electrode driving capacitances In using for of impedance adjusting RF current current base-to-collector 404 by by be the integrating and mized bootstrap from signal effects unison 60 circuit filter to bias such integrating the of increase collector will of the value capacitances 406 signal column The which described 505 thus an current change in amplitude of bias provides summing 403 55 C1is each microcontroller with and For emitter determined is an object of current RF of change amplifier the is provides be 401 can circuits of will 506 the such the to source transistor through electrode The node input capacitor from where vertical 401 circuit and the to electrode signal Qi transistor 50 connected is of in circuit bootstrap electrode an proximity in the change as current to oscillator 502 Current connected is the the by in increase causes reflected 100 current seen by caused collector 100 FIG to RF bias amplifier RF from the capacitor DC in array The capacitance capacitance finger and integrating signal Qi and transistor constant provides Qi An example and 100 array forwarded the for again combined oscillator or connected made by of each The RF 501 of resistor sensor array horizontal FIG control of Electrode the transistor immunity capacitive bootstrap from is A/D an diagram 401 circuit 503 at given circuit is comprised and for electrodes Synchronous from the et overlap higher from then is output output of and under output such trimmer multiplexer detail more not greater Referring amplifier both includes 408 because preferred do invention electrodes on circuit 40 similar Blonder be diagram FIG of integrating can connected row and column is and 202 columns of which pushbuttons also to utilizing or multiplexer can be used buttons data 87C552 the is bootstrap the the can 406 and layer touching object in the FIG providing with comprises of 201 block overall accordance shown is that FIG if elec insulating embedded are measured values capacitance of electrodes elements interdigitated an of capacitance structure are 407 the as sends auxiliary not shown over lead be used for A/D converter ration via strip electrodes strip separated electrodes Buttons purposes be by processor vertical such selected 400 capacitance elements electrode computer controller and covered thin insulating not shown by another layer not shown In such areas of electrodes 204 configuration must be left unmasked 203 so that electrodes by electrodes surface 406 can array is 405 microcontroller the 406 device in appropriate near situated same 406 Thus of 404 filter converter representing separately which 407 Buttons capaci electrode accommo to and detector personal 203 The connections with measured each enlarged of elements 401 column or for Microcontroller interconnec be row instead such measure is separate electrode analog-to-digital value digital any if for the 201 multi-layer of set then board FIG 203 overlapping 203 and 204 are trodes area by 402 be used also 100 in array To microcontroller to can measure to provided is circuits all form by obtain switches planes array For example one can circuit the of row horizontal the between plane with together the electrode desired the seen 401 synchronous digital microcontroller elements art one in connections connections the can 402 hand-held finger in the to FIG in electrode multiplexer of output electrode ele or is circuitry 1667 for U.S Pat No now desired is columns and from and forwarded of that 101 electrodes for use skilled fabricated example vertical 204 100 and be can strokes Univer having 07/86 of subdivided circuit outputs the shown each for rows in date are the art Electronics similar No 1992 it capacitances in array inter which in separately 202 finger 201 cross-section tances are for the Apr filed values connected in element and 202 of detector and plane of in the Cambridge proximity Application similar to that collective 201 cover For Smaller desirable the more each at 201 to possible those to al et applications 30 As and for elements vertical elements be co-pending be ele elements advantageous and as smaller having Boie columns two situated Elements square and 202 in Apparatus in Art Hill to operation known well and guard electrode is The of capacitive The parallel serves 5337353 can horizontal are and is interdigitated approximately stylus It 201 elements as array ments shown as of areas and rows Horizontal 203 interconnected ing 1989 disclosed the two into electrodes FIG 202 interconnected interdigitated 101 889 page 404 filter and signals 10 also axes projections subdivided column and row Such of single and plane connections by Horowitz Edition Press sity continuous substantially from extraneous see example Second circuits inverter associated detector capacitance such element vertical of and electrode be seen from can advan taking centroids the position intersection 100 As array for mea such FIG shown as FIG onto each shows ments by one-dimensional the the by from 100 synchronous 101 electrode is and array 4x4 the reduced that be determined each at 411 100 via 401 synchronous 410 and guard plane 411 to kilohertz 404 filter plane array isolate 100 sixteen array would be needed The number of of projections can centroid coordinates for measurements capacitance the capacitance and capacitances tage of the measuring directly and Guard to above 100 example detector Such distribution The other for by FIG the invention as computer APE L000791 5463388 trackball mouse or mouse or trackball 102 finger over array with finger in to of Referring such stores the 601 centroid which the of 603 com close such 406 and value the such are least- step negative by stored during the next 407 buttons as the of such state leaving connected dy0 data to step 611 read is or 612 610 for Then step iteration are inputs dx0 step can be For applications in FIG such or the state to such relating and 25 calculation be of constant 20 sent 613 state of computer by current to trackball or the Finally 614 step 402 the through milliseconds for use milliseconds for the of output of change programmed is time the on each After 406 microcontroller above-described depending 404 in circuit filter approximately follows the stored are time cycle about the multiplexer mouse other iteration the will steps to that inputs or step computer connected is corresponds computer next Typically in rows the during calcu the dx dy and other such to 400 sensor includes typically of states 420 line which to conventional 20 is object data over sent is buttons which the ele exceeds an connected are Such initial coordinates object 604 and values and has changed means utilizing all each remainders the and 100 FIG the for indicating step 407 the calculated by incrementing andy have changed if buttons changes to initialization read that for of from dy array then 100 of array in thereby After of Finally 15 and positive for dx and dy inputs step minimum values step more or to repeat the moving initial remainder remainders as other 610 step change calculated object select objects capacitance be performed should desirable to periodically array shown as the yield electrodes columns then as step from such lated may be of any one If to or touching of the can 602 threshold preset it and are to values finger without values stored jitter dx of accomplished in calculating use or other initial values and decrementing by The 10 and if initialization subtracted close Such be and remove to the initial 100 array in values zero the desirable bit This can 605 and in step just calculated calculated iteration be microcontroller read values step 601 609 the application reads in elements the of the values values previous significant values an 406 100 without effect the during capacitance ment all times values for the pensating such in chart the may It an are the are during 420 lead and and of the such for over flow is where 102 finger in correspond- data FIG dyyy the with in position Thus sends microcomputer array of stroking cursor 406 accordingly capacitance values the of 100 array reflected 406 step of number 100 of for values state nearby being FIG and are in position values capacitance reflect 100 microcontroller to touching cursor Changes array position changes operation by object the microcontroller application relating to respect changes ing move to movement cursor emulated other some or 100 control to is to wait 404 to can circuit be settle It 30 Vn be will included clear in the desired For adapted for the use absolute sent example flxl Ux that data as capacitive general deskable fl1 35 number increase to definition the even but 4x4 an if be may be it electrodes to use with for can for entering pad application of matrix means 400 sensor input purpose For such and to utilizing input handwritten information Vflx of values 420 line over improve finger input Uy Vn fly can flyl of effect Uy useful produce the because data input of calculations centroid-finding the interpolating in step performed 604 Vfly 40 where is number the column be may value of percentage 1015% be be than less values of column trodes When step step set the 603 Such 607 flag is set and During each changes in follows flag the is set after the set to for some 45 tances neither stroke of and value of that the previous step 606 iteration finger 102 on values just iteration are the or as row to iteration and 55 are at during 603 60 sensed by in be on is electro the capaci used FIG stroke 608 as step is is shown keyboard 65 dotted can be trodes showing 4x4 as overlay on that the the step remainders to use invention matrix of electrodes insulating layer keys on which state 100 can be used the Such cause threshold button array by set in with individual be can touch would higher matrix the compress- for different how an values replacing with the superimposed such indicate printed Note cause the 100 array pressures heavier exceed accordance pattern lines would to by thresholds to indicate diagram in finger of capacitance 100 array threshold first used keyboard 100 the be then on additional one remainder least as the higher be enhanced Different touch ordinary only can contacting this array because pressure when for sensed by values cause will more or also finger fingertip effect layer one to not shown layer An could the stored This ible insulating exceed the pressure sensed 603 were step 100 such be used movement differences can the capacitance related of finger be defining through cleared array but 400 use of be can cursor can pressures it typical pressure ordinary means of somewhat are insulating or elec the if 100 Higher for colunm through finger sensor by compressibility equa remainders calculated 50 and such for calculated during the measured effect same for using calculated indicates ydx and dy values capacitances may be pressures For example to finger an when input mouse purpose separately row first when other additional drag operation finger or for computer heavier Clearly sensed neither and than mechanical example as different mouse desired can of sense click 100 array can of value in during the subsequent and the be the the has during flag 405 capacitance also all together the Thus new indicating can addition threshold can be value measured are obtain connected measurements used is The magnitudes the by adding Such were above which centroid to more to computer it u3 100 in array the than perform operation or the and desirable spurious converter that than in column or A/D of Note nor more and row threshold nor more 101 tions The range applications electrode two range the less than For require that for is 407 buttons using 100 sensor array the value Vn and rows To avoid threshold such of remainder the is of row to the preset number the for desirable exceed Vn of columns is iii remainder of Instead 7131 the Again but matrix keyboard covering in the array with The pattern the elec keyboard do APE L000791 5463388 not the coordinates values touch the for the this determined For is from of centroid the defined as 2.3y2.7 can be lyl.3 and leave to sen 2.4y3.5 with key on These between the in FIG flow used is similar to FIG said the as showing capacitive Such 601 steps 602 603 and 604 805 the identity of the key the stored ranges and the values calculated 806 in step sent is In 807 step means to utilizing the in step cleared that assures the 809 key and The tested is flag the of 20 sent is identity to key Such of using be the clear that capacitive the various can be used implemented mouse as used is portion Alternatively keyboard for the specified and keyboard ence of by those made therein be with be can 30 shown embodiments skilled in the without and that art various from departing the What is sensor continuous input is at part of as capacitively with refer- which device array of an insulating on and scope value for to position on surface capacitance and if at first measured of being set given electrode touching tance at being capacitance stantially for value the first values the when only given said values moment in said position of of array said first that said electrode the of is said the and object to said calculating wherein an said position of of of and second interdigitated means calculating of RF said to said capaci sends further comprises for means second comparing threshold preset when means utilizing second said exceeded value capacitance wherein said said to electrodes unison said said preset than higher means measuring values claim of for current into cur in object electrode comprises to said RF an for means representative said further parallel supplying RF said sensing signals each for which substantially and and signal RF the supplying electrode for sensing electrodes currents capacitance said electrodes said RF for each to said RF said said sensor electrodes and further com signal prises means RF connected signal signals 10 65 in to connected plane said con- said is between flowing means 60 or sub and of periodically means with at to connected said surface set signal guard capaci of to centroid threshold connected The said to representing means column means measuring claim of sensor converting for close distribution on electrode first first are said which threshold being means threshold exceeded centroid the measure each for said in sending values preset means exceeds from is said capacitance to said wherein to said preset first The to said to said supplied to touch-sensitive guard guard said input for supplying unison with plane plane in the said RF electrodes device for which computer comprises an responsive of intersection claim said threshold preset object in comprises comparing values array elements value utilizing indicating response preset said element electrode adapted row changes said said for in of and means and to sensor measuring for for calculating capacitance said first capacitance capacitance capacitance means with said threshold preset centroid of each claim capacitance electrode measuring values one least said first electrode elements each calculates same for electrode first measuring is claim at of sensor second electrodes electrodes each said responsive said said said to for capacitance of rents connected capacitance means the responsive of 50 means and means surface said covering layer range column second for sensor means said said other electrode means and comprises electrodes and to and electrode said 40 may be the object each second said elements The be under will changes sensing of an row other each position 45 of positions row of electrode changes the is for range an to threshold claimed wherein connected value periodically said spirit the sending selected means utilizing claim for said pressure invention the means second The capacitive described However range capacitance as space the it position of centroid with said to in said elements mouse been said associated element for The extra used in key the selecting accomplished where each for of capacitance and comprises key of wherein electrode or said in differ second the computer invention as has particular stood the also invention to second to operate 100 Thus portable the capacitance touches finger can 407 centroid is tance in as sensor position modes of buttons of array region such premium The between one with to mouse as array of column said be adapted mode of intersection value 100 and strokes finger means connected and portion surface and can invention of the coordinates mouse-keyboard responsive 100 can first Switching example in keyboard array modes ent one to responsive as the combination which in of sensor position combined For example be is and falls elements above described ways device input keys coordinates which in sensor each 25 should of said of ranges electrode only once It rows comprises flag means utilizing in comprises range coordinates The in step set 804 in step different means sending identity is and of of of portions comparing said position in touched identity said two- is array arranged comprising represent coordinates said at 808 for of 15 the respectively step wherein of keyboard means 802 803 and 805 801 Steps of sensor position keyboard to for storing said microcon- of operation are further designating calculating means micropro from In determined touched chart when 406 troller invention for with is said electrodes centroid as cho are keys stored is sensor keyboard 10 said means utilizing which in said claim of said touch defined ranges adjacent keyboard as be claim and sensor means with 406 cessor are bands guard each for range touch defined can The keyboard coordinates of array said to columns and the sensor for sending means utilizing position dimensional is resulting and be can with touch The using range capacitance using example FIG in matrix to to capacitance and key touched of computed shown 4x4 in from range nected Since purposes coordinates identity values from the will The electrodes underlying for reference and for and on The shown are obtained equations shown to the correspond necessarily and array said of electrodes electrodes being on surface arranged of in said rows input and device columns APE L000791 5463388 10 an insulating means means said and said nates said to value for at first of least preset of said said set at electrode being the capacitance stantially exceeds of said surface centroid said capacitance when from array of electrode first values the on said said surface centroid the distribution and array of said said moment of in said position positions or touching in the of capaci of object in said sub representing continuous surface and coordi the said position only said to given of range for the threshold preset values values to comparing close is object vicinity tance calculating capacitance touching given first for measuring for means capacitance threshold of for electrode with capacitance being for said measuring corresponding object exceeded one centroid measured threshold each other electrodes electrodes values capacitance if said to said responsive capacitance other covering layer connected capacitance said finger first of or preset value that finger responsive nected to said computer to said computer indicative of calculating for sending or derived means information from said and con to said calculated coordinates is said means or APE L000791

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