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公开(公告)号：KR1019910008433B1
公开(公告)日：1991-10-15
申请号：KR1019890008242
申请日：1989-06-15
Applicant: 한국전자통신연구원 , 전화기산업기술연구조합 , 주식회사KDC상사
IPC: G06K15/00
Abstract: The method for reading the permanent code written on the magnetic layer of the card comprises steps: a) amplifying the signal read by the magnetic head and filtering the high frequency noise; b) differentiating the filtered signal; c) detecting the zero point from the differentiated signal and providing pulse; and d) reproducing the information signal with the pulse.
Abstract translation: 读取写在卡的磁性层上的永久代码的方法包括步骤：a）放大由磁头读取的信号并滤除高频噪声; b）区分滤波信号; c）从微分信号检测零点并提供脉冲; 以及d）用脉冲再现信息信号。
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公开(公告)号：KR1019910008424B1
公开(公告)日：1991-10-15
申请号：KR1019890008514
申请日：1989-06-20
Applicant: 한국전자통신연구원 , 전화기산업기술연구조합 , 주식회사KDC상사
IPC: G06K7/10
Abstract: A system is designed to improve card deformation and slipping in the roller-used system and torgue and tension problems in the belt- driven system. So the system features removing speed changing mechanism, easy installation of idle roller, compact size by placing roller around circular drum and saving manufacturing cost. This equipment is composed of magnetic card in/outlet (8), circular drum (1) operating by motor, idle rolling of at least one idle roller (3a,3a',...,3d,3d'), guider (2) to prevent derailing card and magnetic head to read information of card or to write data on it. The magnetic card (12) is inserted in between drum and idle roller and is guided to rotate by priction force.
Abstract translation: 系统设计用于改善滚筒使用系统中的卡片变形和滑动以及皮带驱动系统中的扭矩和张力问题。 因此，该系统具有去除变速机构，易于安装空转辊，通过将滚筒放置在圆形滚筒周围，缩小尺寸，节省制造成本。 该设备由磁卡进/出（8），由电动机操作的圆筒（1），至少一个空转辊（3a，3a'，...，3d，3d'）的怠速滚动，导向器（2） ）以防止出轨卡和磁头读取卡的信息或写入数据。 磁卡（12）插入滚筒和空转辊之间，通过摩擦力被引导转动。
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Patent Agency Ranking
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公开(公告)号：KR1019920005875B1
公开(公告)日：1992-07-23
申请号：KR1019890008241
申请日：1989-06-15
Applicant: 한국전자통신연구원 , 전화기산업기술연구조합 , 주식회사KDC상사
IPC: G11B20/08
Abstract: Magnetic material having high permiability is printed on a base film and a magnetic material having normal permiability is sprayed on the printed region flatly to record forgery prevention data. A reader detects the residual magnetism difference between the printed region and non-printed region to discriminate the forgery. The method includes: (A) detecting the residual magnetism using a magnetic head, amplifying the detected signal and eliminating noise having high frequency; (B) detecting the variation of the residual magnetic density; (C) modulating the digital signal having TTL level; and (E) reproducing the forgery protecting data.
Abstract translation: 具有高容许性的磁性材料被印刷在基膜上，并且具有正常可容性的磁性材料被平坦地喷涂在印刷区域上以记录防伪数据。 读取器检测打印区域和非印刷区域之间的残余磁差，以区分伪造。 该方法包括：（A）使用磁头检测剩磁，放大检测信号，消除高频噪声; （B）检测残留磁密度的变化; （C）调制具有TTL电平的数字信号; 和（E）再现伪造保护数据。
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公开(公告)号：KR1019910008423B1
公开(公告)日：1991-10-15
申请号：KR1019890008513
申请日：1989-06-20
Applicant: 한국전자통신연구원 , 전화기산업기술연구조합 , 주식회사KDC상사
IPC: G06K7/10
Abstract: Features of this system are constant transporting speed, easy installation of idle roller, automatic belt tension control, compact size and saving the manufacturing cost by reducing components of card reader system. There was card deformation and slipping phenomenon on roller used system and tension control problem in belt driven system. This system is equipped with magnetic card in/out let (8), circular drum (1) operating by motor(4), at least two idle pulley (3a,3a',... 3d,3d'), idle belt (2,2'), tension controller (12) to supply proper tension to idle belt and to carry card attached with drum and magnetic head (6) reading information of card or writing data. Magnetic card is inserted in between drum and belt and is transporting with rotating drum.
Abstract translation: 该系统的特点是输送速度恒定，易于安装惰辊，自动皮带张力控制，体积小巧，通过减少读卡器系统的部件节省制造成本。 皮带驱动系统中辊子使用系统和张力控制问题存在卡片变形和滑动现象。 该系统配备有磁卡进/出（8），由电动机（4）操作的圆筒（1），至少两个惰轮（3a，3a'，... 3d，3d'），空转带 2,2'），张力控制器（12），为空转带提供适当的张力，并携带附有鼓和磁头的卡片（6）读取卡片或数据的信息。 磁卡插入滚筒和皮带之间，并用旋转滚筒传送。
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