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    • 1. 发明授权
    • Information medium
    • 信息媒介
    • US4641374A
    • 1987-02-03
    • US639422
    • 1984-08-10
    • Masumi Oyama
    • Masumi Oyama
    • G06F1/00G06K19/07G07C9/00G07F7/08H04B9/00
    • G06F1/00G06K19/0723G07C9/00111G07F7/0866
    • An information medium used for receiving/delivering information from/to an exterior device, which includes a receiver circuit for receiving a modulated input signal from the exterior device, a demodulator for demodulating the modulated input signal to provide specific information, a decoder for decoding the specific information to provide a decoded instruction, a memory for storing given data, a controller for controlling a write or read operation of the memory in accordance with the contents of the decoded instruction, a modulator for generating a modulated signal which corresponds to data read-out from the memory, a transmitter circuit for delivering to the exterior device a transmission signal corresponding to the modulated signal, a battery for generating electric power, and a switch circuit for selectively supplying the electric power to any of the receiver circuit, demodulator, modulator and transmitter circuit. The selection of the switch circuit for the power supply depends on the contents of the specific information.
    • 一种用于从外部设备接收/传送信息的信息介质,其包括用于从外部设备接收调制输入信号的接收机电路,用于解调调制输入信号以提供特定信息的解调器,用于解码 用于提供解码指令的特定信息,用于存储给定数据的存储器,用于根据解码指令的内容控制存储器的写入或读取操作的控制器,用于产生对应于数据读取指令的调制信号的调制器, 从存储器输出用于向外部设备传送与调制信号相对应的传输信号的发射机电路,用于产生电力的电池,以及用于选择性地将电力提供给接收机电路,解调器,调制器中的任何一个的开关电路 和发射机电路。 电源开关电路的选择取决于具体信息的内容。
    • 4. 发明授权
    • Radio-card communication system
    • 无线电卡通信系统
    • US5661757A
    • 1997-08-26
    • US405893
    • 1995-03-17
    • Yasuo TakahashiMasumi OyamaTatsuya Gunji
    • Yasuo TakahashiMasumi OyamaTatsuya Gunji
    • G06K7/00G06K17/00G06K19/07H04B1/59H04L27/18G06K1/00H04L27/22
    • G06K7/0008G06K19/0723
    • To receive a response signal from a radio card, a card reader transmits a carrier (not modulated) to the radio card. In the radio card, a phase modulator phase-modulates the a sub-carrier with a response signal, thereby generating a PSK signal, and a phase modulator phase-modulates the carrier with the PSK signal, producing a PSK-PSK signal. The PSK-PSK signal is supplied to an antenna via a signal-extracting device. The antenna sends the PSK-PSK signal toward the card reader. In the card reader, a distributor distributes the PSK-PSK signal to a synchronous detector and an orthogonal detector. The detectors performs synchronous detection by using carriers which differ in phase by 90.degree.. Low-pass filters extract sub-carrier components from the outputs of the detectors. The sub-carrier components are delayed and detected by delay detectors and added together by an adder. The level of the output of the adder is determined by a data discriminator, whereby the card reader obtains the response signal transmitted from the radio card.
    • 为了从无线电卡接收响应信号,读卡器将载波(未调制)发送到无线电卡。 在无线卡中,相位调制器利用响应信号对子载波进行相位调制,从而产生PSK信号,相位调制器利用PSK信号对载波进行相位调制,产生PSK-PSK信号。 PSK-PSK信号通过信号提取装置提供给天线。 天线向读卡器发送PSK-PSK信号。 在读卡器中,分配器将PSK-PSK信号分配给同步检测器和正交检测器。 检测器通过使用相位差90°的载波进行同步检测。 低通滤波器从检测器的输出中提取副载波分量。 子载波分量被延迟检测器延迟和检测,并由加法器相加在一起。 加法器的输出电平由数据鉴别器确定,由此读卡器获得从无线卡发送的响应信号。
    • 5. 发明授权
    • Information medium for communicating data and/or a selectable control
transfer program between the medium end and external device
    • 用于在中端和外部设备之间传送数据和/或可选控制传送程序的信息介质
    • US4792996A
    • 1988-12-20
    • US909326
    • 1986-09-19
    • Masumi Oyama
    • Masumi Oyama
    • G11C7/00G06F21/20G06K7/00G06K19/07G06K19/10G07C9/00H04B9/00
    • G07C9/00111G06K19/0723G06K7/0008
    • An information medium comprising a receiving section, a transmitting section, and a transfer-control section. The receiving section receives instructions from an external device. The transmitting section transmits data to the external device. The transfer-control means detects the ID code contained in any instruction information supplied to the receiving section, and changes the transfer program stored in memory when the ID code specifies a program-change instruction. The changed program is supplied to the external device via the transmitting section, so as to be recognized by the external device. Any instruction information supplied to the information medium has an enabling code field, an identification code field, a data field, and an end code field. The transfer-control section includes a control section and a memory unit. The control section operates in accordance with the transfer program stored in the memory unit, thereby to determine which type of instruction information is specified by the ID code written in the identifying code field. The information medium further comprises a drive section for starting and stopping the transmitting section and the control section, in accordance with the enabling code written in the enabling code field, thereby to reduce the power consumption of the medium.
    • 一种信息介质,包括接收部分,发送部分和转移控制部分。 接收部分从外部设备接收指令。 发送部分向外部设备发送数据。 传送控制装置检测包含在提供给接收部分的任何指令信息中的ID码,并且当ID码指定编程改变指令时,改变存储在存储器中的传送程序。 改变的程序通过发送部分提供给外部设备,以便被外部设备识别。 提供给信息介质的任何指令信息都具有使能码字段,识别码字段,数据字段和结束码字段。 转移控制部分包括控制部分和存储器单元。 控制部分根据存储在存储器单元中的传送程序进行操作,从而确定由识别代码字段中写入的ID码指定哪种类型的指令信息。 信息介质还包括根据写入使能码字段中的使能代码来启动和停止发送部分和控制部分的驱动部分,从而降低媒体的功耗。