Europäisches Patentamt
g   _    eufopean patent ofr_ce         O publication number.     O 1 79 29 1
.   .   ofrice europeen des brevets                    .    B 1
.        __               EUROPEAN PATENT SPECIFICATION
g D,t,,f,,bJ;,_,t;,, or patent spec;fication; 17.ol.9o    _ lnt. cl.5. H 04 N 1 141 1
_ Appl.;cation number. 851 12091.5
_.._       _ Date offiling. 2q.o9.85                                         .         .
_ pre_processing of bi_le_el image data.                  _                        ...
_ _FìoF_;_. __.__.__ __ ________             _ _ propr.ietor. Intefnational Business Machines
Corporation                      .
g                                 Old Orchard Road
Date Of PUblication of appl__cat__on.              Armonk, N.Y. I05oq (US)
30.04.86 Bulletin 86118
g                               _ lnventor. Asano, Hideo
PUbl_ICat_On Ofthe gfant Ofthe patent.            353_5 Ohkura_cho
17.01.90 Bulletin _OI03                    Machida_shi Tokyo (JP)
Inventor. Kanzaki, Eisuke
_                                 B_I01 Watauchi Heights 283_6 Watauchi
DeSignated COnt Fa Ctin9 StateS.          .      Fujisawa_shi Kanagawa_ken (JP)
DE FR _8 IT                          lnventor. Shimizu, Yutaka
.                                         8_303 Komayose_danchi 5450 Ohba
_                                 FUjiSaWa_Shi KanagaWa_ken (JP)
ReferenCeS C.lted.
_         _E_A_2 45o o73
__          US_A_ 229 768                      _ Representative. Barth, Carl otto et al
US_A_ 291 339                        IBM Deutschland _mbH Patentabteilung
,.    _                                    Schönaicher Strasse 220
__    EO                                    D_7030 BÖblin9en IDE)
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_   Note. With__n nine months from the Publication of the ment.ion of the grant of the European Patent, anV Person maY
gi Ve n OtiCe tO the EUrOPea' Patent Off.ICe Of OppOSitiOn tO the EUFOpea' paten_t gfa'ted. NOt_ICe Of OpPOSitiO_ Shall
_    be.f_le(dA __n gagw(_ri)tteen reasoned statement. l.t s) all not be deemed to have been filed unt_il the oPPosition fee haS been
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Courier Press, Leam__ngton Spa, England.           .         _