METHOD, APPARATUS, AND SYSTEM FOR DETERMINING A FRAUDULENT ITEM
    1.
    发明公开
    METHOD, APPARATUS, AND SYSTEM FOR DETERMINING A FRAUDULENT ITEM 审中-公开
    步骤,装置及systme用于确定欺诈POST

    公开(公告)号:EP1661051A2

    公开(公告)日:2006-05-31

    申请号:EP04778045.7

    申请日:2004-07-13

    申请人: MOTOROLA, INC.

    IPC分类号: G06K1/00

    摘要: In order to address the need for detection of fraudulent items, a method, apparatus, and system for detection of fraudulent items is provided herein. Special anti-forgery Radio-Frequency identification (RFID) tags are utilized with additional measures to thwart would-be forgers. Each anti-forgery RFID tag comprises a unique, or semi-unique number that, along with a private key possessed by only the legitimate product manufacturer, determines a signature that is preferably printed on the product packaging. Utilizing the unique number on the anti-forgery RFID and a public key corresponding to the private key, the signature is verified by standard public-key cryptographic methods. The validation of the signature identifies the product's authenticity.

    USE OF A SUBCARRIER IN AN ORGANIC SEMICONDUCTOR RADIO FREQUENCY IDENTIFICATION SYSTEM
    2.
    发明公开
    USE OF A SUBCARRIER IN AN ORGANIC SEMICONDUCTOR RADIO FREQUENCY IDENTIFICATION SYSTEM 审中-公开
    子载波在有机半导体射频识别系统中的应用

    公开(公告)号:EP1629444A2

    公开(公告)日:2006-03-01

    申请号:EP04750933.6

    申请日:2004-04-29

    申请人: MOTOROLA, INC.

    IPC分类号: G08B13/14

    CPC分类号: G06K19/0723 H04L27/38

    摘要: A radio frequency identification system (20) comprising a radio reader circuit (30) operable to emit a radio frequency carrier signal (60) modulated with a subcarrier, which has a subcarrier modulation rate. The radio frequency identification tag circuit (70) is operable to extract the subcarrier from the emitted radio frequency carrier signal (60) and the extracted subcarrier then functions as a clock, which operates to assist in the transfer of a modulated backscattered signal (66) to the radio frequency identification reader circuit (70). The radio frequency identification reader circuit (70) decodes the modulated backscattered signal (66) and the data encoded in the radio frequency identification tag circuit (70) is obtained.

    摘要翻译: 一种包括无线电读取器电路(30)的无线电频率识别系统(20),所述无线电读取器电路(30)可操作以发射利用副载波调制的无线电载波信号(60),副载波具有副载波调制速率。 射频识别标签电路(70)用于从发射的射频载波信号(60)中提取副载波,并且提取的副载波然后用作时钟,该时钟用于帮助调制后向散射信号(66)的传输, 到射频识别读取器电路(70)。 射频识别读取器电路(70)对调制后向散射信号(66)进行解码并获得在射频识别标签电路(70)中编码的数据。

    LOW POWER TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR
    4.
    发明公开
    LOW POWER TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR 失效
    温度补偿型晶体振荡器低消耗

    公开(公告)号:EP0741930A1

    公开(公告)日:1996-11-13

    申请号:EP95933059.0

    申请日:1995-09-08

    申请人: MOTOROLA INC.

    IPC分类号: H03L1 H03B5

    CPC分类号: H03L1/023

    摘要: A low power temperature compensated crystal oscillator (10) is disclosed. The temperature compensated crystal oscillator (10) has a crystal oscillator circuit (12), a voltage controlled reactance element (30), a temperature compensation network (50), and a programmable DC-DC converter network (60) having an output (62) connected to the voltage controlled reactance element (30), the temperature compensation network (50) or both. Much of this structure is adapted for use in an integrated circuit, and provides the advantage of minimizing power and current consumption.