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    • 11. 发明授权
    • Method and device to prevent refill of cartridge
    • 防止墨盒重新填充的方法和装置
    • US07611235B2
    • 2009-11-03
    • US12075717
    • 2008-03-13
    • Thomas Richards
    • Thomas Richards
    • B41J2/175
    • B41J2/17506B41J2/17513G03G15/0894
    • A method and device to prevent the refill of cartridges, including inject and laser printer cartridges. The device includes a cage made of hardened drill resistant material inserted within the central reservoir of the cartridge to prevent drilling into the cartridge. The device also includes a bit grabbing mesh designed to grab or catch any drill bit able to penetrate the drill resistant cage, thus impeding the ability of a refiller to drill holes into the central reservoir. The device also includes at least two pressure sensitive check valves that close if a refiller attempts to introduce refill ink either by forcing it in under pressure or by drawing it in by means of a vacuum created within the central reservoir. Finally, the device includes a number of packets containing an ink altering material that would be released and foul any refill ink during an attempt to refill the cartridge.
    • 一种防止墨盒重新填充的方法和装置,包括注射和激光打印机墨盒。 该装置包括由硬化的耐磨材料制成的保持架,该保持架插入在该卡盘的中央容器内,以防止钻入墨盒中。 该装置还包括一个抓地网,其设计用于抓取或抓住任何能够穿透耐钻孔笼的钻头,从而阻止再填充钻孔进入中央储存器的能力。 该装置还包括至少两个压力敏感的止回阀,如果再填充物试图通过迫使其处于压力下或通过在中央储存器内产生的真空进行抽吸而引入再填充墨水,该止回阀就会关闭。 最后,该设备包括多个包含改变油墨的分组,其将被释放并在尝试重新填充墨盒期间弄脏任何再填充墨。
    • 12. 发明申请
    • Detection of an electromagnetic signal
    • 检测电磁信号
    • US20050254826A1
    • 2005-11-17
    • US10518032
    • 2004-11-01
    • Martyn JenningsThomas Richards
    • Martyn JenningsThomas Richards
    • G01S3/783G01S7/48G01S7/481H04B10/00
    • G01S7/4818G01S3/783G01S7/4804
    • A signal detector system (10) comprises a single signal detector (11) having a limited on-time during which any received electromagnetic signal can be assessed. The signal detector (11) receives electromagnetic signals from a single direction in space (D) through a single optical fibre (12), a signal splitter 13 which splits the collected signal between three optical paths (20, 30 and 40), and a signal combiner (14) which combines the portions of the signal transmitted by the three optical paths (20, 30 and 40) and transmits the combined signal to a signal detector input (15). Each of the optical paths (20, 30 and 40) includes a respective optical delay (21, 31 and 41) designed to delay transmission of any received signal towards the signal detector (11). In this manner the signal detector (11) will receive any signals that arrived at the optical fibre (12) during three separate periods of time.
    • 信号检测器系统(10)包括具有有限的导通时间的单个信号检测器(11),在该信号检测器(11)期间可以评估任何接收的电磁信号。 信号检测器(11)通过单个光纤(12)从空间(D)中的单个方向接收电磁信号,信号分离器13将收集的信号分成三个光路(20,30和40)和 信号组合器(14),其组合由三个光路(20,30和40)发送的信号的部分,并将组合的信号发送到信号检测器输入端(15)。 每个光路(20,30和40)包括相应的光学延迟(21,31和41),其设计成将任何接收信号的发射延迟到信号检测器(11)。 以这种方式,信号检测器(11)将在三个分开的时间段期间接收到达光纤(12)的任何信号。
    • 18. 发明申请
    • Switchable coupling
    • 可切换耦合
    • US20060104567A1
    • 2006-05-18
    • US10518898
    • 2004-10-08
    • Christopher GreenwayThomas Richards
    • Christopher GreenwayThomas Richards
    • G02B6/26
    • G02F1/1326G02F1/315G02F2203/06
    • A switchable coupler (10) has a first waveguide (15) defining an inlet port (31) for a first unpolarised light input (A) and a first outlet port (32), and also a second waveguide (16) defining an inlet port (41) for a second unpolarised light input (13) and a second outlet port (42). Polarisation splitter devices (11, 12) and two electro-optical switches (13,14) are sandwiched between the waveguides (15, 16). The polarisation splitter devices (11, 12) are positioned to split the light inputs (A and B) into respective refracted and reflected polarised components (AL and AF; BL and BF), and the electro-optical switch (13) is operable by the application across it of a potential difference (+V) to recombine the polarised components (BL, BF) and to couple them with the light output AT through the first outlet port (32). As shown in FIG. (7), the electro-optical switch (14) is alternatively operable by the application across it of the potential difference (+V) to recombine the polarised components (AL, AF) and to couple them with the light output BT through the second outlet port (42).
    • 可切换耦合器(10)具有限定用于第一未偏振光输入(A)和第一出口(32)的入口(31)的第一波导(15),以及限定入口 (41)和第二出口(42)的第二无偏光输入(13)。 偏振分离器装置(11,12)和两个电光开关(13,14)夹在波导(15,16)之间。 偏振分离器装置(11,12)被定位成将光输入(A和B)分裂成各自的折射和反射偏振分量(A L1和A B; B 并且电光开关(13)可通过其上的应用电位差(+ V)进行操作,以将极化分量( 并且通过第一出口(32)将它们与光输出端A T 1耦合。 如图所示。 (7)中,电光开关(14)可交替地通过其上的应用电位差(+ V)进行操作,以将极化分量(A L1,L, / SUB>),并通过第二出口(42)将它们与光输出B SUB连接。