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    • 2. 发明授权
    • Solid state memory device having optical data connections
    • 具有光学数据连接的固态存储器件
    • US5274584A
    • 1993-12-28
    • US696357
    • 1991-05-06
    • Watson R. HendersonMichael S. KellyMichael L. LeonhardtFloyd G. PaurusArchibald W. SmithStanley R. Szerlip
    • Watson R. HendersonMichael S. KellyMichael L. LeonhardtFloyd G. PaurusArchibald W. SmithStanley R. Szerlip
    • G11C5/00G11C5/14G11C7/00G11C5/06
    • G11C5/141G11C5/00G11C7/005
    • The solid state memory device consists of a circuit board based system which is mounted in a 3480 type magnetic tape cartridge form factor housing to make this media physically compatible with the 3480 type magnetic tape cartridges. The interconnection of the solid state memory device with the read/write device is by an optical connections which transfer data between the solid state memory device and the associated read/write device. A plurality of batteries in the solid state memory device provide power for the memory retention capability required of the volatile solid state memory devices. The batteries are recharged by the use of a pair of power rails that are incorporated into the exterior housing of the 3480 form factor cartridge. Thus, the associated read/write device applies power to the solid state memory via these power rails when the 3480 form factor cartridge is placed in the associated read/write device. Likewise, an associated manual or automated cartridge storage system supplies power when the cartridge is offline, in storage.
    • 固态存储器件由基于电路板的系统组成,该系统安装在3480型磁带盒形状因数外壳中,以使该介质与3480型磁带盒物理兼容。 固态存储器件与读/写器件的互连是通过在固态存储器件和相关的读/写器件之间传输数据的光学连接。 固态存储器件中的多个电池为挥发性固态存储器件所需的存储器保持能力提供电力。 电池通过使用一对电源轨进行再充电,这些电源导轨结合到3480外形尺寸盒的外壳中。 因此,当3480形状因子盒被放置在相关联的读/写设备中时,相关联的读/写设备通过这些电源轨将电力施加到固态存储器。 同样,相关的手动或自动化盒式磁带存储系统在存储器中脱机时提供电力。
    • 4. 发明授权
    • Mechanical trip device for a circuit breaker
    • 断路器的机械跳闸装置
    • US4238750A
    • 1980-12-09
    • US054454
    • 1979-07-03
    • Archibald W. Smith
    • Archibald W. Smith
    • H01H71/50H01H75/10H01H9/20
    • H01H71/505H01H2003/3089H01H2071/506H01H2071/508
    • In a power circuit breaker a trip mechanism is provided normally to oppose the large opening forces associated with the separable contacts of the breaker and to hold the contacts closed. The trip mechanism in response to overload current conditions collapses and trips open the breaker contacts. Forces related to the opening force of the breaker contacts are present throughout the trip mechanism when the contacts are closed. The trip mechanism provides two eccentric latch mechanisms in series each of which reduce the magnitude of the forces acting in the trip mechanism that are related to the opening force. The two latch mechanisms are each mounted to a pivot for rotation therewith. A force related to the opening force is applied against each latch mechanism. Because the pivot for each latch mechanism is eccentric to the line of force acting against the latch mechanism, the force translates into a rotational force that tends to rotate the latch mechanism and pivot. The rotational force is considerably smaller in magnitude than the force acting against the latch mechanism. By utilizing the two eccentric latch mechanisms connected in series, the trip mechanism becomes a relatively simple and inexpensive device.
    • 在电力断路器中,通常提供跳闸机构以与与断路器的可分离触点相关联的大的开启力相对,并且将触点保持闭合。 响应过载电流条件的跳闸机制塌陷并跳闸打开断路器触点。 当触点闭合时,与断路器触点的打开力相关的力存在于整个跳闸机构中。 跳闸机构提供两个串联的偏心闩锁机构,每个偏心闩锁机构减小了作用在跳闸机构中的与开启力相关的力的大小。 两个闩锁机构各自安装到枢轴以与其一起旋转。 对每个锁定机构施加与开启力相关的力。 因为每个闩锁机构的枢轴对于作用在闩锁机构上的力线是偏心的,所以力转化成倾向于使闩锁机构旋转的旋转力。 旋转力的大小要比施加在闩锁机构上的力小得多。 通过利用串联连接的两个偏心闩锁机构,脱扣机构成为相对简单且便宜的装置。
    • 5. 发明授权
    • Compact optical tracking system for magnetic tape
    • 紧凑的磁带跟踪系统
    • US07082006B1
    • 2006-07-25
    • US09371588
    • 1999-08-10
    • Archibald W. Smith
    • Archibald W. Smith
    • G11B5/58G11B5/584G11B5/596
    • G11B5/5504G11B5/584
    • A compact optical tracking system for magnetic tape is disclosed which is independent of the magnetic format and head structure which can generate a position error signal without encoding on the servo track. A plurality of optical servo modules is arranged in a linear array. Each optical servo module contains an optical beam source, preferably a laser, an optical beam interference composite hologram for producing a predetermined pattern on a target and at least one detector for detecting an optical beam reflection. A position correction signal is generated by one or all of the optical servo modules for re-positioning a magnetic head, which reduces the error in the correction signal from tape degradation and dimensional changes. Reference grating may be added to provide further position calibration prior to the tape being positioned over the head. Refinements to the tracking system include outboard heads which are added for additional position references and which may include index marks for initial positioning in association with a desired servo track.
    • 公开了一种用于磁带的紧凑型光学跟踪系统,其独立于可以在伺服轨道上编码而不产生位置误差信号的磁格式和磁头结构。 多个光学伺服模块以线性阵列布置。 每个光学伺服模块包括光束源,优选地是激光器,用于在目标上产生预定图案的光束干涉复合全息图和用于检测光束反射的至少一个检测器。 位置校正信号由用于重新定位磁头的光学伺服模块中的一个或全部产生,这降低了校正信号中的误差从磁带劣化和尺寸变化。 可以在磁带定位在头部之前,添加参考光栅以提供进一步的位置校准。 对跟踪系统的改进包括附加的用于附加位置参考的外侧头部,并且可以包括与期望的伺服轨迹相关联的用于初始定位的索引标记。
    • 7. 发明授权
    • Q-switching injection laser with oxygen implanted region
    • 具有氧注入区域的Q开关注入激光器
    • US4055815A
    • 1977-10-25
    • US643972
    • 1975-12-24
    • Archibald W. Smith
    • Archibald W. Smith
    • H01S5/00H01S5/042H01S5/06H01S5/10H01S5/20H01S3/19
    • H01S5/20H01S5/0601H01S5/0615H01S5/1021H01S5/2059
    • A Q-switching injection laser is disclosed which includes integral emitter and saturable absorber sections of the semiconductive body. In one embodiment the emitter and absorber sections are separated by an interface region implanted with ions of a type and amount to significantly increase the resistivity at the interface. Preferably, the implanted ions have energy levels spaced far enough from the conduction and valence bands of the semiconductive body such that charge carriers cannot be thermally excited between the conduction or valence bands and the energy level of the implanted ions. In another preferred embodiment, the saturable absorber section includes implanted ions of type and amount to increase the resistivity of the region, as compared to the emitter region, so as to give saturable absorber characteristic under available pumping conditions. Likewise, preferably the implanted ion is selected such that its energy levels are sufficiently separated from the valence and conduction bands so as to prevent thermal excitation from transferring charge carriers between valance and conduction bands and the energy levels of the implanted ion. In a specific embodiment, in a GaAs injection laser doped with Ge or Si, the implanted ion may be selected from the group including O, Cr and Fe.
    • 公开了一种Q切换注入激光器,其包括半导体的集成发射极和可饱和吸收体部分。 在一个实施例中,发射极和吸收体部分被注入类型的离子的界面区域分开,并且量显着增加界面处的电阻率。 优选地,注入的离子具有与半导电体的导电带价和价带间隔足够远的能级,使得电荷载流子不能在导电或价带之间和注入离子的能级之间被热激发。 在另一个优选实施例中,与发射极区域相比,可饱和吸收器部分包括类型和数量增加该区域的电阻率的注入离子,以便在可用的泵送条件下给出饱和吸收器特性。 类似地,优选地,选择注入离子使得其能级与价带和导带充分分离,以防止热激发在价带和导带之间转移电荷载流子和注入离子的能级。 在具体实施例中,在掺杂Ge或Si的GaAs注入激光器中,注入离子可以选自O,Cr和Fe。
    • 8. 发明授权
    • Integrated optical tracking system for magnetic media
    • 用于磁性介质的集成光学跟踪系统
    • US06563662B2
    • 2003-05-13
    • US09880285
    • 2001-06-12
    • Archibald W. Smith
    • Archibald W. Smith
    • G11B5596
    • G11B21/088G11B5/5504G11B5/5526G11B5/584G11B5/596
    • An improved servo system having an optical head array integrated into the magnetic head, and optical servo tracks incorporated on the magnetic side of a medium. The optical head array includes a light source array that individually illuminates the optical servo tracks through a beam splitter array and a lens array. Light beams incident on the optical servo tracks are individually reflected back through the lens array and beam splitter array to respective bi-cell photo detectors. The signals from the bi-cell photo detector are amplified by respective differential amplifiers to produce error signals indicative of the alignment of the magnetic head with the optical servo tracks. The error signals are combined by a circuit to produce a position error signal.
    • 一种改进的伺服系统,其具有集成在磁头中的光学头阵列,以及并入介质磁性侧的光学伺服磁道。 光头阵列包括通过分束器阵列和透镜阵列分别照亮光学伺服轨道的光源阵列。 入射到光学伺服磁道上的光束通过透镜阵列和分束器阵列被单独反射回到相应的双电池光电检测器。 来自双电池光电检测器的信号由相应的差分放大器放大,以产生指示磁头与光学伺服磁道对准的误差信号。 误差信号由电路组合以产生位置误差信号。
    • 10. 发明授权
    • Integrated optical tracking system for magnetic media
    • 用于磁性介质的集成光学跟踪系统
    • US06275349B1
    • 2001-08-14
    • US09203784
    • 1998-12-02
    • Archibald W. Smith
    • Archibald W. Smith
    • G11B5596
    • G11B21/088G11B5/5504G11B5/5526G11B5/584G11B5/596
    • An improved servo system having an optical head array integrated into the magnetic head, and optical servo tracks incorporated on the magnetic side of a medium. The optical head array includes a light source array that individually illuminates the optical servo tracks through a beam splitter array and a lens array. Light beams incident on the optical servo tracks are individually reflected back through the lens array and beam splitter array to respective bi-cell photo detectors. The signals from the bi-cell photo detector are amplified by respective differential amplifiers to produce error signals indicative of the alignment of the magnetic head with the optical servo tracks. The error signals are combined by a circuit to produce a position error signal.
    • 一种改进的伺服系统,其具有集成在磁头中的光学头阵列,以及并入介质磁性侧的光学伺服磁道。 光头阵列包括通过分束器阵列和透镜阵列分别照亮光学伺服轨道的光源阵列。 入射到光学伺服磁道上的光束通过透镜阵列和分束器阵列被单独反射回到相应的双电池光电检测器。 来自双电池光电检测器的信号由相应的差分放大器放大,以产生指示磁头与光学伺服磁道对准的误差信号。 误差信号由电路组合以产生位置误差信号。