A description is given of an identification card having an intelligent memory chip and means for contactless data exchange, an optical sensor being integrated in the card and, in the absence of optical action, blocking or limiting the data exchange.
申请公布号
DE4311385(A1)
申请公布日期
1994.10.13
申请号
DE19934311385
申请日期
1993.04.07
申请人
HOLZER, WALTER, SENATOR H.C. DR. H.C. ING., 88709 MEERSBURG, DE
发明人
HOLZER, WALTER, SENATOR H.C. DR. H.C. ING., 88709 MEERSBURG, DE
