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    Passive RFID tag that retains state after temporary loss of power
    21.
    发明申请
    Passive RFID tag that retains state after temporary loss of power 有权
    被动RFID标签在暂时丧失电源后保持状态

    公开(公告)号：US20030137400A1

    公开(公告)日：2003-07-24

    申请号：US10056398

    申请日：2002-01-23

    Applicant: Intermec IP Corp.

    Inventor： Harley Kent Heinrich ,  Vijay Pillai ,  David E. Dieska

    IPC: H04Q001/30

    CPC classification number: G06K19/0701 ,  G06K19/0723 ,  G06K19/073

    Abstract: The present invention provides an RFID transponder that includes a state holding cell that maintains the present state of the RFID transponder during temporary losses of power. After power is restored to the RFID transponder, the state holding cell restores the present state to the RFID transponder so that transactions with an RFID interrogator can continue without having re-transmit redundant commands. The RFID transponder further comprises an RF front end adapted to receive an interrogating RF signal. An analog circuit is coupled to the RF front end and is adapted to recover analog signals from the received interrogating RF signal. The analog circuit provides state information defining a desired state of the RFID transponder corresponding to the analog signals. A digital state machine is coupled to the analog circuit and adapted to execute at least one command in accordance with the state information. A memory is coupled to the digital state machine and is adapted to store and retrieve digital data responsive to the at least one command executed by the digital state machine. A power capacitor is coupled to the RF front end and derives a voltage rectified from the interrogating RF signal to charge the power capacitor. The power capacitor thereby provides electrical power for the analog circuit, the digital state machine and the memory. The state holding cell is coupled to the analog circuit and the digital state machine and is adapted to maintain the state information during a loss in power provided by the power capacitor due to lapse in receipt of the interrogating RF signal by the RF front end.

    Abstract translation: 本发明提供一种RFID应答器，其包括状态保持单元，其在暂时的功率损耗期间保持RFID应答器的当前状态。 在将电力恢复到RFID应答器之后，状态保持单元将当前状态恢复到RFID应答器，使得与RFID询问器的交易可以在不重新传输冗余命令的情况下继续进行。 RFID应答器还包括适于接收询问RF信号的RF前端。 模拟电路耦合到RF前端，并且适于从接收的询问RF信号中恢复模拟信号。 模拟电路提供定义对应于模拟信号的RFID应答器的期望状态的状态信息。 数字状态机耦合到模拟电路并且适于根据状态信息执行至少一个命令。 存储器耦合到数字状态机，并且适于响应于由数字状态机执行的至少一个命令来存储和检索数字数据。 功率电容器耦合到RF前端，并导出从询问RF信号整流的电压，以对功率电容器充电。 因此，电力电容器为模拟电路，数字状态机和存储器提供电力。 状态保持单元耦合到模拟电路和数字状态机，并且适于在由RF前端接收到询问RF信号的过程中由功率电容器提供的功率损耗期间维持状态信息。

    METHODS, APPARATUSES, AND SYSTEMS FOR POWER CONTROL ON VEHICLE MOUNTED RFID SYSTEM
    22.
    发明申请
    METHODS, APPARATUSES, AND SYSTEMS FOR POWER CONTROL ON VEHICLE MOUNTED RFID SYSTEM 有权

    公开(公告)号：US20230053396A1

    公开(公告)日：2023-02-23

    申请号：US18045771

    申请日：2022-10-11

    Applicant: INTERMEC IP CORP.

    Inventor： Bruce MORTON ,  Rene MARTINEZ ,  Richard BLAIR

    IPC: G06K7/10 ,  B60R16/033 ,  B60R16/04

    Abstract: Vehicle mounted Radio Frequency Identification (RFID) systems and associated methods are provided. An example vehicle mounted RFID system is configured to operate an RFID system in a high-power mode. The example vehicle mounted RFID system is further configured to determine that an operating state of a vehicle switched from an active charging state to an inactive state. The example vehicle mounted RFID system is further configured to, in response to determine that the operating state of the vehicle switched from the active charging state to the inactive state, initialize a timer for a period of time. The example vehicle mounted RFID system is further configured to, in response to an elapse of the period of time, switch the RFID system to a low-power mode.

    Volume dimensioning system calibration systems and methods
    24.
    发明授权
    Volume dimensioning system calibration systems and methods 有权

    公开(公告)号：US10321127B2

    公开(公告)日：2019-06-11

    申请号：US13786131

    申请日：2013-03-05

    Applicant: Intermec IP Corp.

    Inventor： Franck Laffargue ,  Serge Thuries ,  H. Sprague Ackley

    IPC: G01F17/00 ,  G01F25/00 ,  H04N17/00

    Abstract: Various corporate, industry, and regulatory guidelines, best practices and standards are used in establishing acceptable levels of accuracy for volume dimensioning systems used in commerce. A volume dimensioning system can determine at least one distortion value that is indicative of an amount of distortion present in the system and responsive to the amount of distortion, autonomously alter or adjust the units of accuracy of information reported by the system. Such alteration or adjustment of units of accuracy may be performed based on an assessment of the distortion relative to a number of distortion thresholds. Responsive to the assessment, the volume dimensioning system can adjust a unit of accuracy in a representation of volume dimensioning related information.

    Finding sensor data in an RFID network
    25.
    发明授权
    Finding sensor data in an RFID network 有权

    公开(公告)号：US10275618B2

    公开(公告)日：2019-04-30

    申请号：US14462003

    申请日：2014-08-18

    Applicant: INTERMEC IP CORP.

    Inventor： H. Sprague Ackley

    IPC: G06K7/10 ,  H04Q9/00 ,  G08C17/02

    Abstract: A system and method of selectively reading sensor data from a memory device is able to search the memory device for an indicator that identifies the sensor data, and read only the sensor data identified by the indicator from the memory device. In this way, interrogating devices are able to sort through sensor data stored in a network of memory devices, such as an RFID network, and report specific data of interest despite the existence of a variety of data types in the network. In some embodiments, flags are stored and associated with specific types of data, such as various sensor data, thereby allowing numerous memory devices and sensors to operate and be read efficiently in the same environment.

    Modulation index (depth) based grouping, addressing, and fingerprinting RFID tags
    26.
    发明授权
    Modulation index (depth) based grouping, addressing, and fingerprinting RFID tags 有权

    公开(公告)号：US09996716B2

    公开(公告)日：2018-06-12

    申请号：US15665798

    申请日：2017-08-01

    Applicant: INTERMEC IP CORP.

    Inventor： Pavel Nikitin ,  Stephen J. Kelly

    IPC: G06K7/00 ,  G06K7/10

    CPC classification number: G06K7/10227 ,  G06K7/10039 ,  G06K7/10108

    Abstract: A method of addressing one or more RFID devices within a group of RFID devices includes transmitting a command to respond to the group at a first modulation depth. The method further includes receiving a response from a first sub-group of RFID devices in the group that have a minimum modulation depth less than or equal to the first modulation depth. The method further includes transmitting the command to respond to the group at a second modulation depth higher than the first modulation depth. The method further includes receiving a response from a second sub-group of RFID devices within the group that have a minimum modulation depth less than or equal to the second modulation depth. The method is also directed to authenticating RFIDs by comparing a measured minimum modulation depth to a known minimum modulation depth.

    Modulation index (depth) based grouping, addressing, and fingerprinting RFID tags
    28.
    发明授权
    Modulation index (depth) based grouping, addressing, and fingerprinting RFID tags 有权

    公开(公告)号：US09727763B2

    公开(公告)日：2017-08-08

    申请号：US14587772

    申请日：2014-12-31

    Applicant: INTERMEC IP CORP.

    Inventor： Pavel Nikitin ,  Stephen J. Kelly

    IPC: G06K7/00 ,  G06K7/10

    CPC classification number: G06K7/10227 ,  G06K7/10039 ,  G06K7/10108

    Abstract: A method of addressing one or more RFID devices within a group of RFID devices includes transmitting a command to respond to the group at a first modulation depth. The method further includes receiving a response from a first sub-group of RFID devices in the group that have a minimum modulation depth less than or equal to the first modulation depth. The method further includes transmitting the command to respond to the group at a second modulation depth higher than the first modulation depth. The method further includes receiving a response from a second sub-group of RFID devices within the group that have a minimum modulation depth less than or equal to the second modulation depth. The method is also directed to authenticating RFIDs by comparing a measured minimum modulation depth to a known minimum modulation depth.

    Communication protocol and system for network communications
    30.
    发明授权
    Communication protocol and system for network communications 有权

    公开(公告)号：US09641647B2

    公开(公告)日：2017-05-02

    申请号：US15048558

    申请日：2016-02-19

    Applicant: Intermec IP Corp.

    Inventor： Jaroslav Hala ,  Petr Franek

    IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08

    CPC classification number: H04L69/18 ,  H04L12/66 ,  H04L67/14 ,  H04L67/34 ,  H04L67/42 ,  H04W4/60

    Abstract: A communication protocol and system is disclosed for network communications between a data service residing on a client that provides network communications between one or more mobile applications on a mobile computing device and a network based on a process number. The shared data service communicates with a data service plug-in on the server side associated with the process number, in order to handle requests from the mobile applications that access a plug-in associated with the process number through the data service. The communication connection between the mobile application and the data plug may be managed by a set of rules defined for that network communication.

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