摘要:
A portable display device, such as a contactless IC card, comprising, for example, cholesteric liquid crystal with a memory capability and having an improved mechanical durability. The display device has two opposed substrates (1) and display portion (liquid crystal) (2) interposed between the substrates (1). The display device further has a wall member (3) which is a wall structure holding the substrates at portions other than the display portion (2). The walls are perpendicular to the substrates (1), and the surfaces perpendicular to the walls are adhered to the substrates (1). The area of the surfaces adhered to the substrates (1) is larger than that of the surfaces of the display portion (2) opposing the substrates (1).
摘要:
An IC card for transmitting information to an external device and/or receiving information from an external device, capable of displaying information effectively making the most use of the characteristics of cholesteric liquid crystal. The IC card comprises information display means for displaying predetermined information by transmitting/reflecting light by a method in which a stack of cholesteric liquid crystal layers (631, 632) reflecting red light while in the planar state and a cholesteric liquid crystal layer (633) reflecting blue light, and voltages are applied to the stacked cholesteric liquid crystal layers (631, 632, 633)respectively to change the aligned state of cholesteric liquid crystal molecules between the planar and focal conic states.
摘要:
A management PC (11) is provided with a polling combination table (11a) for storing the data (or combination data), which is set with such a combination of reader/writers as raises no problem even with simultaneous polling, and a polled flag. A management PC (10) refers, in the polling processing of reader/writers (13), to a polling combination table (11a) sequentially from the leading line, and examines the combination data of individual lines. One or more reader/writers (13) set in the combination data are polled in parallel. The polled flag of the polled reader/writer is set to '1'. The management PC clears, when it refers to the last line of the polling combination table, the polled flags of all lines of the polling combination table to '0', and repeats the aforementioned series of operations.
摘要:
An RFID tag section (10) is constructed from a seal material section (11), a substrate material section (12) formed in a layered manner on the seal material section (11), and a printing material section (13) formed in a layered manner on the substrate material section (12). On the surface of the substrate material section (12) is formed an RFID tag composed of an LSI chip (21), an antenna (22), and an impedance regulation section (23). Those portions of the seal material section (11) and the substrate material section (12) that are located below the impedance regulation section (23) are cut out, and an impedance regulation section cutout section (30) is provided in the cutout region. When the impedance regulation section cutout section (30) is cut out from the RFID tag section (10), the impedance regulation section (23) connected to the antenna (22) is separated from the RFID tag.
摘要:
An IC card reading apparatus supporting different communication standards and providing users with excellent usability. Based on an instruction from a CPU, a linear power amplifier supplies, in a case of transmitting a radio signal of Type A, an antenna circuit with a power supply voltage of Type A supplied from a power supply switch circuit, and supplies, in a case of transmitting a radio signal of Type B, the antenna circuit with a power supply voltage of Type B supplied from the power supply switch circuit. In this way, both an IC card of Type A and an IC card of Type B can be read.
摘要:
There is provided a small antenna for induction reader/writer capable of increasing the communication distance even when the antenna area or power supply to the antenna is restricted. The small antenna for induction reader/writer has a two-layer structure of loop antennas arranged at a predetermined interval and each comprising a printed board (2) for forming a loop pattern (1), the loop pattern (1) formed by etching the printed board (2), and a start terminal (3) and an end terminal (4) for supplying signal transmission power and outputting a received signal.
摘要:
The IC card processor comprises an MPU (51) for access control on an IC (22) for holding card side security code and card information, a keyboard (58A) for input of apparatus side security code used in collation with card side security code, and a nonvolatile memory (59) for storing the apparatus side security code. The MPU (51) reads out the apparatus side security code from the nonvolatile memory (59) when referring to the card information, and issues it to the IC (22). The IC (22) collates the entered apparatus side security code and the held card side security code, and when matched, being set in accessible state from the MPU (51), the MPU (51) accesses and reads the card information, and processes it as specified.
摘要:
A portable card unit handler is adapted to receive a card unit provided with memory so as to handle the card unit. The handler comprises communication sections (23, 243) for the card unit, a connector section (14) connectable detachably with an external device, communication sections (24, 244) for an external device, a display section (13), and a control section (20). When an external device is connected to the connector section (14), the control section (20) controls the communication sections (23, 243) and the communication sections (24, 244) so that data can be transferred between a card unit and the external device. When no external device is connected to the connector section (14), on the other hand, the control section (20) controls communication sections (23, 243) so that data can be read from the memory in the card unit and displayed on the display section (13). This handler functions as an information display device for card units and as a read/write device for card units.