RF tagging system with multiple decoding modalities
    1.
    发明授权
    RF tagging system with multiple decoding modalities 失效
    具有多种解码方式的RF标签系统

    公开(公告)号:US5604486A

    公开(公告)日:1997-02-18

    申请号:US67923

    申请日:1993-05-27

    IPC分类号: G08B13/24 G08B13/14

    摘要: An RF tagging system includes an RF tag (10, 30) and an RF tag reader 80. The RF tag includes a plurality of RF resonant circuits. Each RF resonant circuit is resonant at a given RF frequency. A group of decoder RF resonant circuits (12, 32) have resonant frequencies defining one of a plurality of predetermined decoding modalities. A group of data RF resonant circuits (14, 34) have resonant frequencies corresponding to a predetermined identification code when the resonant frequencies of the data RF resonant circuits are decoded in accordance with the one decoding modality. The RF tag reader detects the resonant frequencies of the decoder RF resonant circuits and determines the one decoding modality. The RF tag reader is operative in each of the plurality of predetermined decoding modalities, detects the resonant frequencies of the group of data RF resonant circuits, and decodes the resonant frequencies of the group of data RF resonant circuits in accordance with the one decoding modality to provide the identification code. The decoder RF resonant circuits may also indicate the number of data RF resonant circuits on the RF tag. The RF tag reader determines the predetermined number from the decoder RF resonant circuits to confirm the accurate detection of the data RF resonant circuits. The RF tag reader, when selecting a decoding modality in accordance with the detected resonant frequencies of the decoder RF resonant circuits, determines various frequency bands and alters the RF tag reader frequency detection operation for accurate detection of the data RF resonant circuits.

    摘要翻译: RF标签系统包括RF标签(10,30)和RF标签读取器80.RF标签包括多个RF谐振电路。 每个RF谐振电路在给定的RF频率下谐振。 一组解码器RF谐振电路(12,32)具有定义多个预定解码模态之一的谐振频率。 当数据RF谐振电路的谐振频率根据一种解码模式解码时,一组数据RF谐振电路(14,34)具有对应于预定识别码的谐振频率。 RF标签读取器检测解码器RF谐振电路的谐振频率并确定一种解码模式。 RF标签读取器在多个预定解码模式中的每一个中操作,检测数据RF谐振电路的谐振频率,并且根据一个解码模式对数据RF谐振电路组的谐振频率进行解码, 提供识别码。 解码器RF谐振电路还可以指示RF标签上的数据RF谐振电路的数量。 RF标签读取器从解码器RF谐振电路确定预定数量,以确认数据RF谐振电路的精确检测。 RF标签读取器在根据检测到的解码器RF谐振电路的谐振频率选择解码模式时,确定各种频带并改变RF标签读取器频率检测操作,以准确检测数据RF谐振电路。

    Portable power source and RF tag utilizing same
    2.
    发明授权
    Portable power source and RF tag utilizing same 失效
    便携式电源和RF标签

    公开(公告)号:US5457447A

    公开(公告)日:1995-10-10

    申请号:US40969

    申请日:1993-03-31

    摘要: An RF tag (10) includes an RF receiver (16) and an RF transmitter (18). A power source (12) provides power to the receiver and transmitter. The power source includes a plurality of energy converters (22, 24, 26, 28, 30, and 32). Each energy converter is responsive to a predetermined form of incident energy for converting its respective predetermined form of incident energy to electrical current. At least two of the energy converters are responsive to respective different predetermined forms of incident energy for providing electrical current. A storage capacitor (54) stores the electrical current provided by the energy converters and is coupled to the RF receiver and RF transmitter. A plurality of RF tags (10, 110, 140, 160) utilizing the power source 12 are also described.

    摘要翻译: RF标签(10)包括RF接收器(16)和RF发射器(18)。 电源(12)向接收器和发射器提供电力。 电源包括多个能量转换器(22,24,26,28,30和32)。 每个能量转换器响应于预定形式的入射能量,以将其各自的预定形式的入射能量转换成电流。 至少两个能量转换器响应于各自不同的预定形式的入射能量以提供电流。 存储电容器(54)存储由能量转换器提供的电流并且耦合到RF接收器和RF发射器。 还描述了利用电源12的多个RF标签(10,110,140,​​160)。

    Tagging system having resonant frequency shift compensation
    3.
    发明授权
    Tagging system having resonant frequency shift compensation 失效
    具有谐振频移补偿的标签系统

    公开(公告)号:US5473330A

    公开(公告)日:1995-12-05

    申请号:US153450

    申请日:1993-11-17

    摘要: A tagging system (20) compensates for both resonant frequency spatial dependent shifts and resonant frequency dependent shifts for detecting data resonant circuits (DC1-DC6) on an RF tag 10 which is carried by a tagged object (34). The system includes at least one transmitter (26) and at least one receiver (28) for determining the actual resonant frequencies of reference resonant circuits (SC1-SC5, FC1-FC4) on the tag 10. A microprocessor controller (22), in response to the frequency difference between the undisturbed resonant frequencies of the reference resonant circuits and the actual resonant frequencies of the reference resonant circuits, provides compensating factors to compensate for the spatial and frequency effects of the resonant frequencies of the resonant circuits on the tag (10). The transmitter and receiver determine the actual resonant frequency of each data resonant circuit (DC1-DC6) on the tag (10). The microprocessor controller (22) then determines the undisturbed resonant frequencies of the data resonant circuits on tag (10) from the actual resonant frequencies of the data resonant circuits and the compensation factors.

    摘要翻译: 标签系统(20)补偿由标签对象(34)携带的RF标签10上的数据谐振电路(DC1-DC6)的共振频率空间相关移位和谐振频率相关移位。 该系统包括用于确定标签10上的参考谐振电路(SC1-SC5,FC1-FC4)的实际谐振频率的至少一个发射器(26)和至少一个接收器(28)。一种微处理器控制器(22) 响应于参考谐振电路的未受干扰的谐振频率与参考谐振电路的实际谐振频率之间的频率差提供补偿因素以补偿谐振电路在标签(10)上的谐振频率的空间和频率效应 )。 发射机和接收机确定标签(10)上每个数据谐振电路(DC1-DC6)的实际谐振频率。 微处理器控制器(22)然后根据数据谐振电路的实际谐振频率和补偿因子来确定标签(10)上的数据谐振电路的未受干扰的谐振频率。

    RF identification tag configurations and assemblies
    4.
    发明授权
    RF identification tag configurations and assemblies 失效
    RF识别标签配置和组件

    公开(公告)号:US5604485A

    公开(公告)日:1997-02-18

    申请号:US49804

    申请日:1993-04-21

    摘要: An RF tag (10) includes a plurality of RF resonant circuits (14, 18, 22) which are disposed in a three-dimensional array within a body (30) of solid material. Selected ones of the RF resonant circuits are coated with a conductive ink (36) for programming the RF tag. Non-planar RF resonant circuits (40, 50) provide enhanced directivity. The RF resonant circuits (14, 40, 50) are disposed within an elongated body (72, 82, 94) in spaced apart and substantially axially aligned relation to provide elongated RF tag configurations. An RF tag assembly (110) includes attachment mechanisms (116, 118) for attaching an RF tag (128) to a carrier. A dual mode RF tag assembly (140) is also provided which includes a passive RF circuit (144) and an active RF circuit (142).

    摘要翻译: RF标签(10)包括在固体材料的主体(30)内以三维阵列设置的多个RF谐振电路(14,18,22)。 所选择的RF谐振电路被涂覆有用于编程RF标签的导电油墨(36)。 非平面RF谐振电路(40,50)提供增强的方向性。 RF谐振电路(14,40,50)以间隔和基本轴向对准的关系设置在细长主体(72,82,94)内,以提供细长的RF标签配置。 RF标签组件(110)包括用于将RF标签(128)附接到载体的附接机构(116,118)。 还提供了包括无源RF电路(144)和有源RF电路(142)的双模RF标签组件(140)。

    Battery-powered RF tags and apparatus for manufacturing the same
    5.
    发明授权
    Battery-powered RF tags and apparatus for manufacturing the same 失效
    电池供电的RF标签及其制造设备

    公开(公告)号:US5495250A

    公开(公告)日:1996-02-27

    申请号:US143583

    申请日:1993-11-01

    摘要: An RF tag (20) includes a low profile battery power source (22). The RF tag includes an electrically insulating substrate 21, an RF transmitter (24) on the substrate for transmitting a predetermined identification code, and the battery (22). The battery includes a first pattern of conductive material to form a planar anode structure (48) and a second pattern of conductive material on the substrate to form a cathode structure (50). A protective layer (92) overlies the substrate. The protective layer includes an opening (94) to expose the anode and cathode of the battery to permit an electrolyte to be applied to the anode and cathode for completing the formation of the battery and to provide electrical energy to the RF transmitter. A manufacturing apparatus (60) is also described which permits the RF tags to be manufactured in a low cost, reel-to-reel, basis. Also described is a dispenser (100) for activating and dispensing the RF tags one at a time at a point of use.

    摘要翻译: RF标签(20)包括薄型电池电源(22)。 RF标签包括电绝缘基板21,用于发送预定识别码的基板上的RF发射器(24)和电池(22)。 电池包括导电材料的第一图案,以在衬底上形成平面阳极结构(48)和第二导电材料图案以形成阴极结构(50)。 保护层(92)覆盖在基板上。 保护层包括用于暴露电池的阳极和阴极的开口(94),以允许将电解质施加到阳极和阴极以完成电池的形成并向RF发射器提供电能。 还描述了一种制造设备(60),其允许以低成本,卷到盘的方式制造RF标签。 还描述了一种用于在使用点一次一个地激活和分配RF标签的分配器(100)。

    RF tagging system and RF tags and method
    6.
    发明授权
    RF tagging system and RF tags and method 失效
    RF标签系统和RF标签和方法

    公开(公告)号:US5381137A

    公开(公告)日:1995-01-10

    申请号:US966653

    申请日:1992-10-26

    摘要: RF tagging system (10) has a plurality of resonant circuits (13) on a tag (12). When the tag (12) enters a detection zone (14), the system determines the resonant frequency of each of the resonant circuits (13) and produces a corresponding code. Preferably, resonant frequency detection is implemented by simultaneously radiating signals at each possible resonant frequencies for the tag circuits (13). The system is useful for coding any articles such as baggage or production inventory. Preferably, the radiated signals are phase shifted during the detection process, and signals received by receiver antennas, besides transmitter signals, may be monitored to improve the reliability of detecting the resonant circuits (13). Also, a preferred step adjustment configuration for capacitive metalizations (106, 110) of the resonant circuits is described. For radiating signals into the detection zone (14), focused beam antennas (201) may be used such that each resonant circuit location on the tag can be separately monitored. Also, an apparatus (300) for producing customized resonant circuit tags in accordance with a specified input code is described.

    摘要翻译: RF标签系统(10)在标签(12)上具有多个谐振电路(13)。 当标签(12)进入检测区域(14)时,系统确定每个谐振电路(13)的谐振频率并产生相应的代码。 优选地,谐振频率检测通过以标签电路(13)的每个可能谐振频率同时辐射信号来实现。 该系统对于诸如行李或生产库存等物品进行编码很有用。 优选地,辐射信号在检测过程中被相移,并且除了发射机信号之外,接收机天线接收的信号可以被监测,以提高检测谐振电路(13)的可靠性。 此外,描述了用于谐振电路的电容金属化(106,110)的优选的步调调整配置。 为了将信号辐射到检测区域(14)中,可以使用聚焦光束天线(201),使得可以分别监视标签上的每个谐振电路位置。 此外,描述了用于根据指定的输入代码产生定制的谐振电路标签的装置(300)。

    Electronic direction finder
    7.
    发明授权
    Electronic direction finder 失效
    电子测向仪

    公开(公告)号:US5146231A

    公开(公告)日:1992-09-08

    申请号:US770850

    申请日:1991-10-04

    CPC分类号: G01C17/30 G01C21/20

    摘要: An electronic direction finder (10), having a housing (11) with a major axis (18), has a GPS receiver (28) and directional (31) and omnidirectional (30) antennas and provides an electrical signal (angle A) indicative of the direction of the housing axis (18) with respect to a predetermined compass heading (North). The electrical signal (angle A) is provided by using determined positions of the GPS receiver (28) and one GPS satellite to calculate a compass bearing from the receiver (28) to the one satellite and using the directional antenna (31) to determine the orientation of the housing axis (18) with respect to the satellite. This eliminates using electrical output terrestrial magnetism sensing devices to sense direction finder/receiver orientation with respect to compass direction, and therefore avoids the inaccuracies and costs associated with such magnetism sensing devices.

    RF tagging system including RF tags with variable frequency resonant
circuits
    8.
    发明授权
    RF tagging system including RF tags with variable frequency resonant circuits 失效
    RF标签系统包括具有可变频率谐振电路的RF标签

    公开(公告)号:US5446447A

    公开(公告)日:1995-08-29

    申请号:US195681

    申请日:1994-02-16

    摘要: An RF tagging system which provides a large number of potential identification codes without increasing the physical size of RF tags used therein includes a plurality of RF tags (20, 90, 140, 230, 250) and an external reader (200). Each RF tag includes at least one resonant circuit (22, 92, 142, 231, 251) which is resonant at any one of a plurality of different frequencies, a receiver (34, 102, 152,244, 264) for receiving an interrogation signal, and a control (36,104,154,246, 266) responsive to receipt of an interrogation signal for causing its at least one resonant circuit to be resonant at selected ones of the different frequencies in a predetermined time sequence corresponding to a predetermined identification code. The external reader includes a detector (216, 218, 220, 222) for detecting the selected resonant frequencies of the RF tags and a decoder (226) for decoding the time sequence of the selected resonant frequencies for recovering the predetermined identification code.

    摘要翻译: 提供大量潜在识别码而不增加其中使用的RF标签的物理尺寸的RF标签系统包括多个RF标签(20,90,140,​​230,250)和外部读取器(200)。 每个RF标签包括在多个不同频率中的任何一个谐振的至少一个谐振电路(22,92,142,231,251),用于接收询问信号的接收器(34,102,152,244,264) 以及控制器(36,104,154,246,266),其响应于接收到询问信号,以使其至少一个谐振电路在对应于预定识别码的预定时间序列中以选定的不同频率谐振。 外部读取器包括用于检测所选择的RF标签的谐振频率的检测器(216,218,220,222)和用于解码所选择的谐振频率的时间序列以用于恢复预定识别码的解码器(226)。