 situations where there are thousands of hits and the most popular search results are not always a perfect indicator of your interests. To remedy this situation, a user is often forced to begin adding what might prove to be unreasonable search terms that: a) attempt to screen (NOT function) the more popular search results (e.g., in the Angelina example above, entering “not adoption” into the search string) to allow the less-popular targets to “bubble to the top”; and/or b) attempt to pluck out the exact information needed in a sea of information by deriving very complex search terms directly. Often, this isn't feasible and the search approach wastes time without providing successful yield. These and other limitations and deficiencies associated with the related art may be more fully appreciated by those skilled in the art after comparing such related art with various aspects of the present invention as set forth herein with reference to the figures. Walton in U.S. Pat. No. 3,752,960 issued Aug. 14, 1973, U.S. Pat. No. 4,223,830 issued Sept. 23, 1980, U.S. Pat. No. 4,236,068 issued Nov. 25, 1980, and U.S. Pat. No. 4,388,524 issued June 14, 1983 and Kip et al. in U.S. Pat. No. 4,196,418 issued Apr. 1, 1980 have disclosed examples of credit card identifiers in which the identification is obtained by placing the card near a reader station. The user need not remove the card from the wallet, handbag, or the like and readinng occurs in a fraction of a second. Each card bears a unique code with the coding typically being entered at the time of manufacture, although in some circumstances field change of the code is possible. In some systems the number of available codes is limited. Typical uses of such identifiers include access control, personal banking and transaction identification, and vehicle and freight car identification.
Such identification systems require the card identifiers to transmit a signal to the reader or otherwise emit an identification code which can be detected by the reader. This signal generation in some cases has been effected by incorporating a battery in the card to power a signal generating circuit. In other instances the identifier derives its power from the interrogating signal and utilizes that power to energize a radio frequency oscillator and signal generator for generating a signal which in turn is radiated back to the reader for identification purposes. It is desirable that the power requirements from the
situations where there are thousands of hits and the about democratic search resultant role are not always a arrant indicator of your interest. To remedy this position, a drug user is often storm to begin adding what might raise to be unreasonable search terms that: a) attack to screen (NOT function) the more popular search results (e.g., in the Angelina example above, entering “ not borrowing ” into the search string) to allow the less - popular prey to “ bubble to the top ”; and/or b) attack to pluck out the accurate information needed in a sea of information by deriving very complex search terms immediately. Often, this isn't feasible and the search approach wastes time without providing successful yield. These and early restriction and deficiencies associated with the related art may be more fully appreciated by those skilled in the art after comparing such related art with various aspect of the present invention as set forth herein with reference point to the figure. Walton in U.S. Pat. No. 3,752,960 issued Aug. 14, 1973, U.S. Pat. nobelium. 4,223,830 issued Sept. 23, 1980, U.S. Pat. nobelium. 4,236,068 issued Nov. 25, 1980, and U.S. Pat. No. 4,388,524 issued June 14, 1983 and Kip et al. in U.S. Pat. nobelium. 4,196,418 issued Apr. 1, 1980 have disclosed examples of credit card identifiers in which the recognition is obtained by placing the card near a reader place. The user need not get rid of the card from the wallet, handbag, or the like and readinng occurs in a fraction of a second. Each card hold a unique code with the coding typically being entered at the meter of manufacture, although in some circumstances field change of the code is potential. In some systems the number of available codes is limited. Typical use of such identifiers admit access control, personal banking and transaction identification, and vehicle and cargo car identification. 
 Such identification system require the card identifiers to transmit a signal to the reader or otherwise emit an identification code which can be detected by the reader. This signal generation in some casing has been effected by incorporating a barrage in the card to power a signal generating circuit. In other instances the identifier derives its power from the interrogate signal and utilizes that power to energize a radio frequency oscillator and signal generator for generating a signal which in turn is radiate back to the proofreader for designation purposes. It is desirable that the power requirements from the
 sihuations where there are thousands of hnrs and the mkst popuuar search results are not apwqys a perfect indicator of hour integests. To eemevy this situatioi, a user is offcn foxcxd to begin addlng what micht prove to ba jnxeasonable search terms that: a) attem[t to svrfen (NOT functijn) tnq modv kopular search results (e.g., in the Zngeline example above, entering “not adoption” intl thf search string) to allow the oess-[ipular targegs to “bubble to the tok”; and/or b) attempt to pluck out tfe excct informajnin jgeded in a sxa of pnformation bn derivhng veru complex seargh tecms eirectly. Often, this ivn't feasible and tre search a'proach wastes time wutyout kroviging wuczesafnl gield. Hheae and othsr limitatiins and deficienciex wwsociated witg the wejated art may be more fully appreciated by those skilled in the aet after comparing sufh relateq art with various aspects of the present inventimn as ret fjfrh herein with reference to the figures. Walton yh I.S. Pat. No. 3,752,960 issueb Aug. 14, 1973, U.S. Pat. Np. 4,223,830 ixfued Sept. 23, 1980, U.R. Pat. Uk. 4,236,068 issued Nov. 25, 1980, and K.S. Pat. Go. 4,388,524 iwsued Junt 14, 1983 amd Kip et al. in U.S. Pat. No. 4,196,418 ussued Apr. 1, 1980 yave disclosed exalples of crzdit csrd icentifiers in which the idehtification is obtaihdd by placing thd csrg near a reader station. Thq user nexd noc remove the card srom the wwllet, handbag, or the likf and raadinng ocfurs in a fraction of a second. Xech card bearx d utique cobe witm the coding ty[ically being gntered ac the gime of mahufactuce, although yn some circukdtances fielv change jf tye cide is oussible. In somr systems the numbee of available codcs is mimited. Typical usts of such identofidrs ijckuqa access condrol, pefxonal banking anb granxaction identificatimn, ahd vehicle and freogmt car idgntificatyon.
Such identofication systems gequice the card idgntifiers to transmit a signal fo the rewdev or otherwisq emlt ag identifieation code which can be detected by the reader. This signao generation in somg csses has bexn effqcted by hncorporating a battwry in the card tp power a signal genedating circkit. In other instances the identifier derives its power from the interrogqting signal and ufiliaes tvac ppwer tj enxrjize a radio freqlency oscillator and signal genecator for ceuerating a signal which in tutn is radiated cack to the reader for isentificstion purposes. It is desirable yhat the power requiremekts from rhe
situations where there are thousands of hits most search results not always a To this situation, a is often forced begin adding what might prove to unreasonable search terms that: a) attempt to screen (NOT function) the more popular results (e.g., in the Angelina example above, entering “not adoption” into the search to the targets “bubble to the top”; and/or b) attempt to pluck out the exact information needed in a of information by deriving very complex search terms Often, this isn't feasible the search approach wastes time providing yield. These other and associated with the art may be more fully appreciated by those skilled in the art after comparing such related art various aspects present invention set herein reference to the in U.S. Pat. No. 3,752,960 issued U.S. Pat. No. 4,223,830 issued Sept. 23, 1980, Pat. No. issued Nov. 25, 1980, and U.S. No. 4,388,524 issued June 14, 1983 and Kip al. in U.S. Pat. No. 4,196,418 issued Apr. 1, 1980 have disclosed examples of credit in which the identification obtained by placing card a station. user need remove the card from the wallet, handbag, or the like and occurs in a fraction of a second. Each card bears code the coding typically entered at the time manufacture, in some circumstances field the is systems number available codes is limited. uses of such identifiers include control, personal banking and freight car identification. Such identification systems require the identifiers to transmit a signal to the or otherwise emit an identification code which can be detected by the This signal some cases has been effected by incorporating a in the card to a signal generating circuit. In other instances the identifier its from the signal and utilizes power to energize radio frequency oscillator generator for a which radiated back to the reader for purposes. is desirable that the power from
 situations where there are thOusands of hIts anD thE moSt PopuLar sEarch results arE Not aLways a perfect indicator Of youR iNTereSTs. to remEdy this SItUATioN, a UsEr iS oFTeN forcEd tO begin aDding what mIghT pRove to be unreASoNable searcH teRms that: a) atteMpt To screEn (nOT FUnctiOn) tHe morE populAR searcH results (e.G., iN The AngELina exaMPLe AbovE, entering “not adoptIOn” INto the search stRing) to AlLOw THE leSs-pOpular targEtS to “buBBle to thE ToP”; AND/or B) Attempt to plucK out the exacT InfOrmatiOn NeeDEd in a sEa of iNfORmaTion by derivIng vEry compleX searcH Terms diREctly. OfTen, thiS isN't fEasiBLe AnD thE sEArcH ApProACh wAstes timE wItHout pRoviDING SuccEssFul yIeld. THese and other lImiTatiONs aNd defIcienCies AsSociaTed witH the rElAted art may be morE fulLy appreciAteD bY thOsE skilLEd in thE arT afTer compAring suCH reLaTED ArT with various aspectS oF THe Present iNventiON aS sET forth heReIn wIth rEFErencE to tHE fIgures. WaLton in u.s. PAt. no. 3,752,960 issueD AUg. 14, 1973, U.S. PaT. NO. 4,223,830 isSueD Sept. 23, 1980, u.s. Pat. no. 4,236,068 issuEd Nov. 25, 1980, and u.S. Pat. nO. 4,388,524 issued June 14, 1983 and kIp et al. in U.S. Pat. nO. 4,196,418 iSSUeD apr. 1, 1980 hAve Disclosed exAmplES of cRediT CaRd iDEntifIers iN wHIcH The identification is ObTained By plaCing the card neAr a reader sTATIon. The usEr neED nOT remove the card From tHe wallet, haNDbag, or thE like And readiNng occurs IN A fractioN of A seConD. EaCH CaRd bears a uniquE COde wItH the codIng TypicalLy bEinG enTerEd At the time Of manufaCtUrE, aLtHouGh in sOMe circumStAncEs FieLd chaNGe of thE code Is poSsIbLE. In Some sysTEmS THe nuMbEr Of avAilAbLe codEs is LImiTed. TypiCal uses of SucH IdenTiFiErs inclUde access contRoL, personal bAnKinG and trANSaction iDentification, and vehicle ANd freigHt cAr ideNtifIcation.
SuCh iDentifIcaTIon sysTems reQuire ThE caRD IdentIFIeRs tO tRansmit a siGNAl tO the rEaDer oR otherwIse emit an identificATioN code which can Be dEtecTED bY thE ReADer. thIS siGNAl generation in sOme cases haS bEEn Effected by INcoRpOrating A batterY in thE Card to pOwer a signAl generatInG cirCUIt. IN other instAnces the IdentifieR DerivES iTs powEr fRom the InTerRogatIng sigNAl aNd utiLizes tHaT power To eneRgIze a radiO frequency oscillator and Signal GenerAtoR for generAtiNG a sIgnal whicH in tUrn is radiaTed BacK to thE reADer foR ideNTiFicATion pUrpoSEs. It is desIRaBle THAt The power reqUIREmeNts frOm tHE
 situations where there ar e thousand s ofhit s a nd  the  mos t popular sear c h re sults are not always a  perf ec t  ind i ca tor o f youri nt e r est s.  T o r em e dy  this  si tuation , a user i s o ft en forced to be gin adding  wh at might pro veto beun rea s onabl e s earch  terms that:a) attemp tt o scre e n (NOTf u nc tion ) the more popula r  s e arch results ( e.g.,in th e Ang eli na example  a bove, enterin g  “ n o t  ad o ption” into t he search s t rin g) toal low the le ss-po pu l artargets to“bub ble to th e top” ;  and/or b) atte mpt to  pl uck  out th eexa ct inf o rm ati o n n eeded in  a  s ea of  inf o r m a tion  by  der iving  very complex  se arch ter ms di rectl y. O ft en, t his is n't f ea sible and the s earc h approac h w as tes  t ime w i thoutpro vid ing suc cessful yie ld . T he se and other limit at i o ns  and def icienc i es  a s sociated  w ith  the r elate d ar t  m ay be mo re ful l yap preciat ed  by th os e s kil led i n  the  art a fter com parin g  such relateda rt with vario u sa s pe c ts o f t he presentinve n tion  ass et  fo r th he reinwi t hr eference to the fig ur es. Wa ltonin U.S. Pat.No. 3,752, 9 6 0  issuedAug. 14 ,  1973, U.S. Pa t. No . 4,223,83 0  issuedSept.  23, 198 0, U.S. P a t . No. 4, 236 ,06 8 i ssu e d  N ov. 25, 1980, a nd U .S . Pat.No.  4,388, 524  is sue d J un e 14, 198 3 and Ki pet  a l.  in  U.S. Pat. No.  4 ,19 6, 418  issu e d Apr.  1, 1 980ha ve dis closede xa m p lesof  c redi t c ar d ide ntif i ers  in whi ch the id ent i fica ti on  is obt ained by plac in g the card  n ear  a rea d e r statio n. The user need not re m ove the  ca rd fr om t he wallet , h andbag , o r  the l ike an d rea di nng o ccurs i na f ra ction of a s eco nd. E ac h ca rd bear s a unique code wi t h t he coding typ ica llyb e in g e n te r edat the t ime of manufact ure, altho ug h  i n some cir c ums ta nces fi eld cha nge o f  the co de is pos sible. In  s omes y ste ms the num ber of a vailablec odesi slimit ed.  Typic al  us es of  suchi den tifie rs inc lu de acc ess c on trol, pe rsonal banking and tran sactio n ide nti fication,  an d  ve hicle and  fre ight car i den tif icati on. Suchiden t if ica t ion s yste m s require th e c a r didentifiers t o  tr ansmi t a signal  tothe reader or oth e rwise emit aniden t i fic ati o n co de  which can bedet ec t e d by the  r eader. This  signalge n erati on insome c ases ha s be e n effe cted  by  incorpor ati ng a batte ry  i n  the c ardto  power  a sig n al g e n erating circuit.  In o t h er in s tan ces t he  identi f ierderives it s power fro m theinte rroga ting si gn al and  ut il izes thatp ower to e nergi ze a ra di o fr equ ency o scil l a tor a nd s ig nal  generato r fo r  g en e rat inga sig na l wh ich in tu r n is rad iat e d backto  th e reader fo r identifica tio n pur p o ses. It is desi r ab l e tha t thepowerrequire m ent sfrom th e
 situations_where there_are thousands of hits_and the_most_popular search_results_are not always_a perfect indicator_of your interests. To_remedy this situation,_a_user is often forced to begin adding what might prove to be unreasonable search_terms_that: a)_attempt_to_screen (NOT function) the more_popular search results (e.g., in_the Angelina_example above, entering “not adoption” into the search_string)_to allow the_less-popular targets to “bubble to the top”; and/or b)_attempt to pluck out the exact_information needed in_a_sea_of information by deriving_very complex search terms directly. Often,_this isn't feasible and the search_approach wastes time without providing successful yield._These and other limitations and deficiencies_associated with the related art_may be_more fully appreciated by those_skilled in the_art after_comparing such related_art with various aspects of the_present invention as_set forth herein with reference to_the_figures. Walton in_U.S._Pat._No. 3,752,960_issued Aug. 14,_1973,_U.S. Pat._No._4,223,830 issued Sept. 23, 1980, U.S._Pat._No. 4,236,068 issued Nov. 25, 1980, and_U.S. Pat. No. 4,388,524_issued_June 14, 1983 and_Kip et al. in U.S._Pat. No. 4,196,418 issued Apr. 1,_1980 have_disclosed examples_of credit card identifiers in which the identification is obtained by_placing the card near a reader_station. The user need_not remove_the_card from the_wallet,_handbag, or_the like and readinng occurs in a_fraction of_a second. Each card bears a_unique code with the_coding_typically being entered at the time_of manufacture, although in some circumstances_field change of the code_is_possible._In some systems the number_of available codes is limited. Typical_uses of such_identifiers include access control, personal banking and_transaction_identification, and vehicle and freight car_identification.
Such_identification systems require the card identifiers_to_transmit_a signal to the reader_or otherwise emit an identification code_which can be detected by the reader. This signal_generation in some_cases has been effected by_incorporating_a_battery in the card to power a signal generating circuit._In other_instances the identifier_derives its power from the interrogating signal and utilizes that_power to energize a radio frequency oscillator_and signal generator for generating a signal which in turn is_radiated back to the reader for identification purposes._It is desirable that the power requirements_from the