 one quaternary ammonium methyl group at most on an average as a strong cationic group per unit of styrene, and when such a polyion complex is formed into a film, its ion density is low and the ionic bond power is insufficient. Accordingly, a film of good water permeability cannot be prepared from such a polyion complex. Conventional styrene-type polycations are expressed by the following formula ##SPC2##
Where R.sub.1, R.sub.2, R.sub.3, X, and n are the same as those defined with respect to the general formula (I) to be given later. PA0 wherein OH is para or meta to --CH--CH.sub.2 ; each of R.sub.1, R.sub.2 and R.sub.3 is an alkyl group, cycloalkyl group, alkenyl group, substituted or unsubstituted benzyl group, or any of these groups having introduced thereinto a hydroxyl group, or ##EQU1## forms a nitrogen-containing or oxygen-containing heterocyclic group, or represents a dialkanol amine or N-alkyl alkanol amine, or R.sub.3 is CH.sub.2 COOH, H, or O forming a coordination bond with N of the quaternary ammonium group; PA0 X is halogen or ROSO.sub.3 in which R is a lower alkyl group; PA0 p is greater than 0 but below 2, p' is at least 0 but below 2, and the sum of p and p' is greater than 0 but below 2; PA0 n is at least 3; (CM) represents a vinyl monomer; and l is any number including 0. 1. Field of the Invention
The present invention relates to a CCD-based bar code scanning system. In particular, the present invention relates to a CCD-based bar code scanning system that provides a plurality of different scan patterns from stored bar code return data from one or more CCD cameras.
2. Description of the Related Art
Bar codes are used in a wide variety of applications for retrieving information, such as price, from objects. In this respect, bar code scanners are of widespread use in grocery stores and department stores, for both inventory control and for point-of-sale (POS) transactions.
A bar code normally includes several bar code characters. A bar code character is a group of lines (bars) and spacings that represent a single number or letter. A bar code symbol is
one quaternary ammonium methyl group at most on an average as a strong cationic group per unit of styrene, and when such a polyion building complex is form into a film, its ion density is depleted and the ionic alliance power is insufficient. Accordingly, a movie of good water permeability cannot be prepared from such a polyion building complex. ceremonious styrene - type polycations are expressed by the keep up formula # # SPC2 # # 
 Where R.sub.1, R.sub.2, R.sub.3, X, and n are the like as those defined with respect to the general formula (I) to be given later. PA0 wherein ohio is para or meta to --CH -- CH.sub.2; each of R.sub.1, R.sub.2 and R.sub.3 is an alkyl group, cycloalkyl group, alkenyl group, substituted or unsubstituted benzyl group, or any of these groups having introduced thereinto a hydroxyl group, or # # EQU1 # # forms a nitrogen - hold or oxygen - containing heterocyclic group, or represents a dialkanol amine or N - alkyl alkanol amine, or R.sub.3 is CH.sub.2 COOH, H, or O shape a coordination bond with N of the quaternate ammonium group; PA0 X is halogen or ROSO.sub.3 in which R is a lower alkyl group; PA0 p is greater than 0 but below 2, p' is at least 0 but below 2, and the kernel of p and p' is greater than 0 but below 2; PA0 n is at least 3; (CM) represents a vinyl monomer; and l is any number including 0. 1. Field of the Invention 
 The present invention relates to a CCD - based bar code scanning system. In particular, the present invention relates to a CCD - based bar code scan system that provides a battalion of unlike scan patterns from stored bar code return datum from one or more CCD cameras. 
 2. Description of the Related Art 
 browning automatic rifle codes are used in a broad variety of applications for retrieving information, such as price, from objects. In this obedience, bar code scanners are of widespread use in grocery stores and department shop, for both inventory control and for point - of - sale (POS) transactions. 
 A bar code normally include several bar code characters. A prevention code character is a group of lines (bars) and spacings that defend a single phone number or letter. A bar code symbol is
 onf quaternary ammonium meuhyl group at mosj in an everage as a stfong cationic group per unit od styeene, and when such a pulyion colplex is fornwd into a hjlm, its ion dsksity ms low and the lonic bond [ower is insufxiziznt. Accordingly, a film of good water permeanipity cannot be prekarqd fdom such a polyion complex. Conventjonal suyrene-type polycatoons are expressed by the volllwing formula ##SPC2##
Wjere R.sub.1, R.wub.2, W.wub.3, X, and n xre the same as those sefined with respect to the gendral yormula (I) ti ve hhven later. 'A0 whegein OH is pavs or mata to --VH--CH.sub.2 ; each pf C.sub.1, R.sub.2 and R.sub.3 is an elkyl group, cycloalkil group, ankznyl group, substitutee ir unvubsditugwd ceneyl gdoup, og aiy of these groups havung introduced thertinei a hydroxyl froup, jr ##EQU1## forms a nitrogen-containing or oxygtn-confaining heterocyclic griup, or represents a dlalkanol wmine or N-alkyl alkanol amine, or R.sub.3 is CH.sub.2 COMH, H, kf O fjfnijg a coordination bond with N of the quaternawg smkonium group; PC0 X is halogen ot GOXJ.sub.3 in which R is c lkwer alkyl group; PW0 p is dreatwr than 0 fut nelow 2, p' is at least 0 but bwlow 2, and thv sun of p and p' is grzater than 0 yut bekow 2; LA0 n is at least 3; (CM) re'resenfs a vinyl lonomer; aha l is any numbef ikclgding 0. 1. Field of the Inveneion
The pcesenc inventkon telates to a CCD-bwsed ndr code scanning sjstem. It particulwr, the present invention relates to a CCD-basec tar code sccnning system that [rovides a plutality of diffdrent scan patteris from storqd bar code rajurn data frok one or morw CCE camerxr.
2. Description pf the Related Art
Bqr codes are used ln a djde variety of ckplucations for reyridvigg iiformwdion, such as prize, wtom ocjects. In tmis reslect, bar code scanness ade of widespread uxe in grocgry storef and departmrnt stores, for botj invxntory conttol and for point-of-sale (POS) transzctions.
A har code normaljy ikcluqes severak bar code characters. A bar code characver is a group of lines (bars) and spacings jhau represent a singje number or letter. A bar codw symbol is
one quaternary ammonium methyl group at most average a strong group per unit a complex is formed a film, its density is low and the ionic power is insufficient. Accordingly, a film of good water permeability cannot be prepared such a polyion complex. Conventional styrene-type polycations are expressed by the following formula Where R.sub.2, X, n are the same as those defined with respect to the general formula (I) to be later. PA0 wherein OH is para or meta --CH--CH.sub.2 ; each of R.sub.2 and R.sub.3 is an group, group, alkenyl substituted unsubstituted group, or any these groups having introduced thereinto a hydroxyl group, or ##EQU1## forms a nitrogen-containing or oxygen-containing heterocyclic group, represents a or N-alkyl amine, R.sub.3 CH.sub.2 COOH, H, forming a coordination bond with N ammonium group; PA0 X is halogen or ROSO.sub.3 which R a lower alkyl group; PA0 p greater than 0 but below 2, p' is least 0 but below 2, and the sum of p and p' is greater than below 2; PA0 n at least 3; represents vinyl and is any including 0. 1. Field of the Invention The present invention relates a CCD-based bar code scanning system. In particular, the present to CCD-based bar code system that provides a of scan patterns from stored return from CCD 2. of the Related Art codes are used in a variety of applications for from objects. In this respect, bar code scanners of widespread use in grocery stores and stores, for both inventory control and for point-of-sale (POS) transactions. A bar normally includes code characters. A bar code character is a of lines (bars) and that represent a single number or letter. A bar symbol
 one quaternary ammonium methYl group at mOst on An aVerAgE as a StroNg cationic grouP Per uNit of styrene, and when sucH a polYiON comPLeX is foRmed intO A fILM, itS iOn DenSiTY iS low aNd tHe ionic Bond power iS inSuFficient. AccoRDiNgly, a film oF goOd water permeAbiLity caNnOt bE PrepaRed From sUch a poLYion coMplex. ConvEnTIonal sTYrene-tyPE PoLycaTions are expressed BY tHE following formUla ##SPC2##
whERe r.SUb.1, R.Sub.2, r.sub.3, X, and n aRe The saME as thosE DeFINEd wITh respect to thE general forMUla (i) to be gIvEn lATer. PA0 wHereiN Oh Is pAra or meta to --cH--CH.Sub.2 ; each of r.sub.1, R.sUB.2 and R.suB.3 Is an alkYl grouP, cyCloAlkyL GrOuP, alKeNYl gROuP, suBStiTuted or uNsUbStituTed bENZYL groUp, oR any Of theSe groups havinG inTrodUCed ThereInto a HydrOxYl groUp, or ##EQu1## formS a Nitrogen-containIng oR oxygen-coNtaInIng HeTerocYClic grOup, Or rEpresenTs a dialKAnoL aMINE oR N-alkyl alkanol aminE, oR r.SuB.3 is CH.sub.2 cOOH, H, oR o fOrMIng a coorDiNatIon bOND with n of tHE qUaternarY ammonIUm GrOup; PA0 X iS hAlogen Or rOSo.suB.3 in whICh R iS a loweR alkyl grOup; PA0 P Is greater than 0 bUT below 2, p' is at leASt 0 BUT bELow 2, aNd tHe sum of p and P' is gREateR thaN 0 BuT beLOw 2; PA0 n Is at lEaST 3; (Cm) Represents a vinyl monOmEr; and l Is any Number includiNg 0. 1. Field of tHE iNvention
the pREsENt invention relAtes tO a CCD-based BAr code scAnninG system. IN particulAR, The preseNt iNveNtiOn rELAtEs to a CCD-based BAR codE sCanning SysTem that ProVidEs a PluRaLity of difFerent scAn PaTtErNs fRom stORed bar coDe RetUrN daTa froM One or mOre CCd camErAs.
2. dEscRiption OF tHE relaTeD ARt
BaR coDeS are uSed iN A wiDe varieTy of appliCatIOns fOr ReTrievinG information, sUcH as price, frOm ObjEcts. In THIs respecT, bar code scanners are of wiDEspread Use In groCery Stores and DepArtmenT stORes, for Both inVentoRy ConTROl and FOR pOinT-oF-sale (POS) trANSacTions.
a bAr coDe normaLly includes several BAr cOde characters. a baR codE CHaRacTEr IS a gRoUP of LINes (bars) and spaciNgs that repReSEnT a single nuMBer Or Letter. A Bar code SymboL Is
 one quaternary ammonium m ethyl grou p atmos t o nan a vera ge as a strong cati onic group per unit of  styr en e , an d  w hen s uch a p o ly i o n c om pl exis fo rmedint o a fil m, its ion  de ns ity is low a n dthe ionicbon d power is i nsu fficie nt . A c cordi ngl y, afilm o f  goodwater per me a bility cannotb e  p repa red from such a p o ly i on complex. Co nventi on a ls t yre ne- type polyc at ionsa re expr e ss e d byt he followingformula ##S P C2# #
Wher eR.s u b.1, R .sub. 2, R.s ub.3, X, an d nare the s ame as those d e fined w ith re spe ctto t h ege ner al for m ul a ( I ) t o be giv en  l ater.  PA0 w h e rein  OH  isparaor meta to -- CH- -CH. s ub. 2 ; e ach o f R. su b.1,R.sub. 2 and  R .sub.3 is an al kylgroup, cy clo al kyl  g roup, alkeny l g rou p, subs tituted orun s u b st ituted benzyl grou p, o rany of t hese g r ou ps having i nt rod uced t herei ntoa  h ydroxylgroup, or  # #EQU1##  f orms a  n itr oge n-con t aini ng oroxygen-c ontai n ing heterocycl i c group, or r e pr e s en t s adia lkanol amin e or N-al kyla lk ano l  amin e, or  R . su b .3 is CH.sub.2 COOH ,H, orO for ming a coordi nation bon d w ith N of  the qu a ternary ammoni um gr oup; PA0 X is halog en or  ROSO.su b.3 in wh i c h R is a  lo wer  al kyl g ro up; PA0 p isg r eate rthan 0but  below2,p'isatle ast 0 but  below 2 ,an dth e s um of p and p'  i s g re ate r tha n  0 but  belo w 2;  P A0 n i s at le a st 3 ; (C M)  r epre sen ts  a vi nylm ono mer; an d l is an y n u mber  i nc luding0. 1. Field o fthe Invent io n
T he pre s e nt inven tion relates to a CCD-b a sed bar  co de sc anni ng system . I n part icu l ar, th e pres ent i nv ent i o n rel a t es  to  a  CCD-based b arcodesc anni ng syst em that provides a plu rality of dif fer ents c an  pa t te r nsfr o m s t o red bar code re turn datafr o mone or mor e  CC Dcameras .
2. De scrip t ion ofthe Relat ed Art
Ba rcode s are  used in a  wide va riety ofa pplic a ti ons f orretrie vi nginfor mation ,  su ch as  price ,from o bject s.  In this  respect, bar code scan ners a re of  wi despreaduse ingrocery s tore s and depa rtm ent  stor es, for b othi nv ent o ry co ntro l  and forp oi nt- o f -s ale (POS) t r a n sac tions .
A bar co de n ormally includess everal bar cod e ch a r act ers .  A b ar  code characte r i sa group of  l ines (bars)  and spa ci n gs th at rep resent  a sing l e  n u mber o r le tte r. A barcod es ymbol i s
 one_quaternary ammonium_methyl group at most_on an_average_as a_strong_cationic group per_unit of styrene,_and when such a_polyion complex is_formed_into a film, its ion density is low and the ionic bond power is_insufficient._Accordingly, a_film_of_good water permeability cannot be_prepared from such a polyion_complex. Conventional_styrene-type polycations are expressed by the following formula_##SPC2##
Where_R.sub.1, R.sub.2, R.sub.3,_X, and n are the same as those defined_with respect to the general formula_(I) to be_given_later._PA0 wherein OH is_para or meta to --CH--CH.sub.2 ;_each of R.sub.1, R.sub.2 and R.sub.3_is an alkyl group, cycloalkyl group, alkenyl_group, substituted or unsubstituted benzyl group,_or any of these groups_having introduced_thereinto a hydroxyl group, or_##EQU1## forms a_nitrogen-containing or_oxygen-containing heterocyclic group,_or represents a dialkanol amine or_N-alkyl alkanol amine,_or R.sub.3 is CH.sub.2 COOH, H,_or_O forming a_coordination_bond_with N_of the quaternary_ammonium_group; PA0_X_is halogen or ROSO.sub.3 in which_R_is a lower alkyl group; PA0 p_is greater than 0_but_below 2, p' is_at least 0 but below_2, and the sum of p_and p'_is greater_than 0 but below 2; PA0 n is at least 3;_(CM) represents a vinyl monomer; and_l is any number_including 0._1._Field of the_Invention
The_present invention_relates to a CCD-based bar code scanning_system. In_particular, the present invention relates to_a CCD-based bar code_scanning_system that provides a plurality of_different scan patterns from stored bar_code return data from one_or_more_CCD cameras.
2. Description of the_Related Art
Bar codes are used in_a wide variety_of applications for retrieving information, such as_price,_from objects. In this respect, bar_code_scanners are of widespread use in_grocery_stores_and department stores, for both_inventory control and for point-of-sale (POS)_transactions.
A bar code normally includes several bar code characters._A bar code_character is a group of_lines_(bars)_and spacings that represent a single number or letter. A_bar code_symbol is