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公开(公告)号:US2963685A
公开(公告)日:1960-12-06
申请号:US83977559
申请日:1959-09-14
Applicant: IBM
Inventor: LAURER GEORGE J , SOUTHARD CARL D
CPC classification number: G11C23/00
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公开(公告)号:US3919447A
公开(公告)日:1975-11-11
申请号:US45313874
申请日:1974-03-20
Applicant: IBM
Inventor: KILMER JR CHARLIE C , LAURER GEORGE J
CPC classification number: B42D25/21 , B42D25/00 , B42D25/346 , B42D25/382 , B42D25/45 , B42D2033/08 , B42D2033/18 , B42D2033/22 , B42D2033/30 , B42D2033/32 , G06K19/14 , G07F7/086 , Y10S283/904 , Y10S428/916 , Y10T428/24331 , Y10T428/24802 , Y10T428/24851 , Y10T428/24868 , Y10T428/24942
Abstract: A card suitable for use in personal and item identification; the card comprises a first film such as polyvinyl chloride with a transmission bandpass in the infra red region, and either a selectively apertured second film laminated on the first film, or, discrete areas of the second film laminated on preselected areas of the first film. The second film is opaque at a single frequency within the first film bandpass. The films may be formed from the same material but for the trace amounts of a carbonyl group in the structure of the second film polymer, the laminate otherwise being transparent and reflectively uniform in the visible light region.
Abstract translation: 适用于个人和物品识别的卡片; 卡片包括在红外区域中具有透射带通的聚氯乙烯等第一膜,以及层压在第一膜上的选择性孔径第二膜,或层压在第一膜的预选区域上的第二膜的离散区域。 在第一胶片带通中,第二胶片在单一频率处是不透明的。 膜可以由相同的材料形成,但是对于第二膜聚合物的结构中的痕量的羰基可以形成,否则层压体在可见光区域中是透明的并且反射均匀。
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公开(公告)号:US3381090A
公开(公告)日:1968-04-30
申请号:US40076864
申请日:1964-10-01
Applicant: IBM
Inventor: DORRELL CARTER E , LAURER GEORGE J
IPC: H03K5/02 , H03K19/018 , H04L25/02
CPC classification number: H04L25/02 , H03K5/02 , H03K19/01806
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14.
公开(公告)号:US3300654A
公开(公告)日:1967-01-24
申请号:US26361063
申请日:1963-03-07
Applicant: IBM
Inventor: DELANOY RICHARD L , LAURER GEORGE J
IPC: H03K3/2893
CPC classification number: H03K3/2893
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公开(公告)号:US3146429A
公开(公告)日:1964-08-25
申请号:US12106261
申请日:1961-06-30
Applicant: IBM
Inventor: LAURER GEORGE J , SOUTHARD CARL D
IPC: G11B5/004
CPC classification number: G11B5/004
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公开(公告)号:US3146423A
公开(公告)日:1964-08-25
申请号:US82367159
申请日:1959-06-29
Applicant: IBM
Inventor: LAURER GEORGE J
IPC: G06F3/08
CPC classification number: G06F3/08
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