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1. 发明授权

US5946361A Viterbi decoding method and circuit with accelerated back-tracing and efficient path metric calculation 失效
标题翻译：维特比解码方法和具有加速回溯和有效路径度量计算的电路
公开(公告)号：US5946361A
公开(公告)日：1999-08-31
申请号：US489933
申请日：1995-06-13
申请人： Satoru Araki , Yoshihito Shimazaki , Shigeru Ono
发明人： Satoru Araki , Yoshihito Shimazaki , Shigeru Ono
IPC分类号： H03M13/23 , G06F11/10 , H03M13/41 , H04L27/06 , H04Q7/20
CPC分类号： H03M13/4169
摘要： In a first aspect of the invention, a Viterbi decoding circuit stores comparison result bits in a bit-accessible path memory unit. A back-trace is performed by setting a state value in a shift register, then shifting comparison result bits from the path memory unit into the shift register. A certain number of bits at the shift-in end of this register are supplied as read address bits to the path memory unit. In a second aspect of the invention, a Viterbi decoding circuit has selectors that first select old path metric values and branch metric values, which are added or subtracted to produce candidate path metric values, then select the candidate path metric values, which are subtracted to produce a comparison result bit representing the sign of their difference. These additions and subtractions are performed by the same arithmetic unit.
摘要翻译：在本发明的第一方面，维特比解码电路将比较结果位存储在位可访问路径存储单元中。通过设置移位寄存器中的状态值，然后将比较结果位从路径存储器单元移位到移位寄存器来执行后跟踪。该寄存器的移入端的一定数量的位作为读地址位提供给路径存储单元。在本发明的第二方面，维特比解码电路具有选择器，其首先选择旧路径量度值和分支量度值，其被相加或相减以产生候选路径度量值，然后选择候选路径量度值，其被减去产生一个表示它们差异的符号的比较结果位。这些加法和减法由相同的算术单元执行。

2. 发明授权

US5648921A Digital operational circuit with pathmetrics calculating steps simplified 失效
标题翻译：具有简化计算步骤的数字运算电路
公开(公告)号：US5648921A
公开(公告)日：1997-07-15
申请号：US495271
申请日：1995-06-27
申请人： Satoru Araki , Yoshihito Shimazaki , Kenichiro Hosoda
发明人： Satoru Araki , Yoshihito Shimazaki , Kenichiro Hosoda
IPC分类号： G06F9/30 , G06F11/10 , G06F17/10 , H03H17/02 , H03M13/23 , H03M13/39 , G06F7/38
CPC分类号： H03M13/39
摘要： Digital operational circuitry includes a first adder/subtractor for adding a first pathmetric to a first branchmetric to develop a first value of pathmetric, and a second adder/subtractor for subtracting the first branchmetric from a second pathmetric to develop a second value of pathmetric. The addition and subtraction are performed by the first and second adder/subrtactors complementarily to each other. The first and second values of pathmetric are compared in likelihood to each other, and in response to the results from the comparison, either of the first and second values of pathmetric is selected and stored in a storage. The circuitry also includes a third adder/subtractor for adding the pathmetric read out from the storage to a second branchmetric to develop a third value of pathmetric, and a fourth adder/subtractor for subtracting the second branchmetric from the pathmetric read out from the storage to develop a fourth value of pathmetric. The third and fourth values of pathmetric are compared in likelihood, and in response to the comparison results either of the third and fourth values of pathmetric is developed as a pathmetric.
摘要翻译：数字操作电路包括第一加法器/减法器，用于将第一路径测量值添加到第一分支测量值以开发第一路径测量值;以及第二加法器/减法器，用于从第二路径测量法减去第一分支测量值以开发第二路径测量值。加法和减法由第一和第二加法器/子载波彼此互补地执行。路径测量的第一和第二值在可能性之间相互比较，并且响应于比较的结果，选择第一和第二值的路径测量值并将其存储在存储器中。所述电路还包括第三加法器/减法器，用于将从存储器读出的路径测量值加到第二分支测量值，以产生第三值测量值;以及第四加法器/减法器，用于从从存储器读出的路径测量值中减去第二分支测量值开发第四个路径值。在可能性中比较了路径测量的第三和第四值，并且响应于比较结果，路径测量的第三和第四值之一被发展为路径测量。

3. 发明授权

US08274762B2 Methods and systems for using resistivity of sensor film in an element shunt 有权
标题翻译：在元件分流中使用传感器膜电阻率的方法和系统
公开(公告)号：US08274762B2
公开(公告)日：2012-09-25
申请号：US12130389
申请日：2008-05-30
申请人： Satoru Araki , Ying Hong , Edward Hin Pong Lee , Tsann Lin , David John Seagle
发明人： Satoru Araki , Ying Hong , Edward Hin Pong Lee , Tsann Lin , David John Seagle
IPC分类号： G11B5/33
CPC分类号： G01R33/18 , G01R33/0023 , G11B5/3929
摘要： A system in one approach includes a sensor stack formed of a plurality of thin film layers; a shunt formed of at least some of the same layers as the sensor stack, the shunt being spaced from the sensor stack; a first lead coupled to the sensor stack and the shunt; and a second lead coupled to the sensor stack and the shunt. A method in one embodiment includes forming a plurality of thin film layers; removing a portion of the thin film layers for defining at least a portion of a sensor stack and at least a portion of a shunt spaced front the sensor stack; forming a first lead coupled to the at least a portion of the sensor stack and the at least a portion of the shunt and a second lead coupled to the at least a portion of the sensor stack and the at least a portion of the shunt. Additional systems and methods are also presented.
摘要翻译：一种方法的系统包括由多个薄膜层形成的传感器堆叠; 由与所述传感器堆叠的至少一些相同层形成的分流器，所述分流器与所述传感器堆叠间隔开; 耦合到传感器堆叠和分流器的第一引线; 以及耦合到传感器堆叠和分流器的第二引线。一个实施例中的方法包括形成多个薄膜层; 去除用于限定传感器堆叠的至少一部分的薄膜层的一部分和与传感器堆叠间隔开的分流器的至少一部分; 形成耦合到传感器堆叠的至少一部分和分流器的至少一部分的第一引线和耦合到传感器堆叠的至少一部分和分流器的至少一部分的第二引线。还介绍了其他系统和方法。

4. 发明申请

US20120068454A1 PIPE JOINT 有权
标题翻译：管接头
公开(公告)号：US20120068454A1
公开(公告)日：2012-03-22
申请号：US13320145
申请日：2010-05-07
申请人： Tamaki Hamaguchi , Tomoyuki Minami , Fumitaka Satoh , Takaaki Inotani , Fumikazu Ishibe , Satoru Araki , Youichi Uchiumi , Takuji Okiayu , Akihiro Hattori
发明人： Tamaki Hamaguchi , Tomoyuki Minami , Fumitaka Satoh , Takaaki Inotani , Fumikazu Ishibe , Satoru Araki , Youichi Uchiumi , Takuji Okiayu , Akihiro Hattori
IPC分类号： F16L55/00 , F16L19/00 , F16L21/00
CPC分类号： F16L25/0045 , F16L37/088 , F16L2201/10
摘要： A pipe joint comprising a pressing nut into which a flexible pipe is inserted, a joint body into which the pressing nut is partially inserted, a resilient means unlocked when pushed by a tip end of the flexible pipe, a sealing member, a retainer engaging the flexible pipe, and an engaging mechanism keeping the pressing nut at a predetermined position in the joint body; the engaging mechanism comprising a stop ring, an annular groove formed on an outer surface of the pressing nut for receiving the stop ring, pluralities of engaging grooves formed on an inner surface of the joint body for receiving the stop ring and communicating with each other; the stop ring engaging both of the annular groove and the first engaging groove before the connection of the flexible pipe is completed; and when the flexible pipe is pulled after completing the connection, the stop ring moving from the first engaging groove to the second engaging groove to draw the pressing nut from the joint body, so that the normal connection of the flexible pipe can be confirmed.
摘要翻译：一种管接头，包括一个柔性管插入其中的一个按压螺母，一个接合体，该压紧螺母部分插入该接头体中，一个由柔性管的顶端推动时解锁的弹性装置，一个密封件，柔性管，以及将按压螺母保持在接头体内的预定位置的接合机构; 所述接合机构包括止动环，形成在所述按压螺母的外表面上的用于接收所述止动环的环形槽，形成在所述接头本体的内表面上的用于接收所述止动环并且彼此连通的多个接合槽; 在柔性管连接之前完成环形槽与第一接合槽啮合的止动环; 并且当完成连接之后拉动柔性管时，止动环从第一接合槽移动到第二接合槽，以从接头本体拉出按压螺母，从而可以确认柔性管的正常连接。

5. 发明授权

US07852072B2 Test-device system for independent characterization of sensor-width and sensor-stripe-height definition processes 有权
标题翻译：用于传感器宽度和传感器条纹高度定义过程的独立表征的测试设备系统
公开(公告)号：US07852072B2
公开(公告)日：2010-12-14
申请号：US12006323
申请日：2007-12-31
申请人： Satoru Araki , Robert S. Beach , Ying Hong , David J. Seagle
发明人： Satoru Araki , Robert S. Beach , Ying Hong , David J. Seagle
IPC分类号： G01R33/12
CPC分类号： G11B5/455
摘要： A test-device system and method for deconvoluting measurements of effects of a sensor-width definition process from measurements of effects of a sensor-stripe-height-definition process in a manufacture of a magnetic sensor. The test-device system comprises a first test device for generating data to characterize a sensor-width-definition process. The test-device system also comprises a second test device for generating data to characterize a sensor-stripe-height-definition process. The test-device system allows independent characterization of a sensor-width parameter and a sensor-stripe-height parameter.
摘要翻译：一种测试装置系统和方法，用于对传感器宽度定义处理的影响进行解卷积测量，所述测量来自传感器条纹高度清晰度过程在制造磁传感器中的影响。测试设备系统包括用于产生数据以表征传感器宽度定义过程的第一测试设备。测试设备系统还包括用于生成数据以表征传感器条纹高度清晰度过程的第二测试设备。测试设备系统允许对传感器宽度参数和传感器条纹高度参数进行独立表征。

6. 发明授权

US07342752B1 Magnetoresistive read head having a bias structure with at least one dusting layer 有权
标题翻译：具有至少一个除尘层的偏置结构的磁阻读取头
公开(公告)号：US07342752B1
公开(公告)日：2008-03-11
申请号：US10769239
申请日：2004-01-31
申请人： Wei Zhang , Yingjian Chen , Satoru Araki , Mohamad T Krounbi
发明人： Wei Zhang , Yingjian Chen , Satoru Araki , Mohamad T Krounbi
IPC分类号： G11B5/39
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3163 , G11B5/3932 , G11B2005/3996
摘要： A magnetoresistive read head includes a magnetoresistive sensor and a bias structure adjacent to the magnetoresistive sensor. The bias structure provides a magnetostatic bias field for the magnetoresistive sensor. The bias structure includes an underlayer, a bias layer over the underlayer, and at least one dusting layer directly below at least one of the underlayer or the bias layer.
摘要翻译：磁阻读取头包括磁阻传感器和与磁阻传感器相邻的偏置结构。偏置结构为磁阻传感器提供静磁偏置场。偏置结构包括底层，底层上的偏置层，以及直接位于底层或偏置层中的至少一个的至少一个除尘层。

7. 发明授权

US07309061B2 Diaphragm-type carburetors 有权
标题翻译：隔膜式化油器
公开(公告)号：US07309061B2
公开(公告)日：2007-12-18
申请号：US11484702
申请日：2006-07-12
申请人： Satoru Araki
发明人： Satoru Araki
IPC分类号： F02M17/04
CPC分类号： F02M17/04 , Y10S261/19 , Y10S261/81
摘要： The carburetor prevents an air-fuel mixture from becoming excessively lean and prevents a fuel pressure from becoming unstable, thereby making it possible to stably supply a fuel to an engine, in a diaphragm-type carburetor with a pressure regulator. A diaphragm-type carburetor includes a fuel pump using a pulsation pressure generated in a crank chamber of an engine or an intake pipe as a driving force, and a metering chamber having a diaphragm and a lever mechanism and provided with fuel at a desired constant pressure. The diaphragm-type carburetor includes a bubble discharge path connecting the metering chamber to other predetermined discharge portions and with a check valve in each of an inlet side and an outlet side. A bubble removing pump is connected to the bubble discharge path, withdraws the bubble to the bubble discharge path from the metering chamber in conjunction with a closing or opening operation of a throttle shaft by a driver or operator and discharging the withdrawn bubble to the discharge portion in conjunction with an opening or closing operation of the throttle shaft.
摘要翻译：化油器防止空气燃料混合物变得过度稀薄并且防止燃料压力变得不稳定，从而可以在具有压力调节器的隔膜式化油器中稳定地向发动机供应燃料。隔膜式化油器包括使用在发动机或进气管的曲柄室中产生的脉动压力作为驱动力的燃料泵，以及具有隔膜和杠杆机构并具有期望的恒定压力的燃料的计量室。隔膜式化油器包括将计量室连接到其它预定排出部分的气泡排出路径，以及在入口侧和出口侧各自具有止回阀。气泡去除泵连接到气泡排放路径，结合由驾驶员或操作者关闭或打开操作节流轴的气泡，将气泡从计量室中取出到气泡排放通道，并将抽出的气泡排出到排放部分结合节流轴的打开或关闭操作。

8. 发明授权

US07286329B1 GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers 失效
标题翻译： GMR传感器具有与自由传感器层对准的浅连续结和偏置层
公开(公告)号：US07286329B1
公开(公告)日：2007-10-23
申请号：US10788656
申请日：2004-02-27
申请人： Yingjian Chen , Wei Zhang , Mohamad T. Krounbi , Satoru Araki , Jinqiu Zhang
发明人： Yingjian Chen , Wei Zhang , Mohamad T. Krounbi , Satoru Araki , Jinqiu Zhang
IPC分类号： G11B5/39
CPC分类号： G01R31/318357 , G11B5/3932
摘要： A magnetic sensor is disclosed having a shallow contiguous junction. Such a sensor is can greatly increase yield for mass-produced heads, especially for large wafers. The magnetic bias layers can be aligned with a free layer of the sensor, improving performance. Milling may be terminated prior to penetration of an antiferromagnetic layer, so that for example the antiferromagnetic layer may extend significantly beyond the free and pinned layers of the sensor.
摘要翻译：公开了一种具有浅连续结的磁传感器。这种传感器可以大大提高批量生产头部的产量，特别是对于大型晶片。磁偏置层可以与传感器的自由层对准，从而提高性能。铣削可以在穿透反铁磁层之前终止，使得例如反铁磁层可以显着地延伸超过传感器的自由和固定层。

9. 发明申请

US20070177305A1 Pad slider design for on-slider ELGs 有权
标题翻译：滑块ELG滑块设计
公开(公告)号：US20070177305A1
公开(公告)日：2007-08-02
申请号：US11340888
申请日：2006-01-27
申请人： Satoru Araki , Alexander Driskill-Smith , David Seagle , Xiao Wu
发明人： Satoru Araki , Alexander Driskill-Smith , David Seagle , Xiao Wu
IPC分类号： G11B5/60
CPC分类号： G11B5/3173 , G11B5/3166 , G11B5/3169 , G11B5/6005
摘要： One embodiment of the present invention provides a slider including a slider body, a magnetic reader disposed on the slider body, a magnetic writer disposed on the slider body, and an electronic lapping guide disposed on the slider body. The slider also includes a first row of contact pads disposed on the slider body and coupled to the magnetic reader and the magnetic writer and a second row of contact pads disposed on the slider body and coupled to the electronic lapping guide. The electronic lapping guide may be electrically isolated from the magnetic reader and magnetic writer.
摘要翻译：本发明的一个实施例提供了一种滑块，其包括滑块体，设置在滑块主体上的磁读取器，设置在滑块体上的磁记录器，以及设置在滑块体上的电子研磨导轨。滑块还包括设置在滑块主体上并耦合到磁性读取器和磁性写入器的第一排接触焊盘，以及布置在滑块主体上并耦合到电子研磨导轨的第二排接触焊盘。电子研磨导轨可以与磁性读写器和磁性写入器电隔离。

10. 发明申请

US20060256482A1 Method to fabricate side shields for a magnetic sensor 失效
公开(公告)号：US20060256482A1
公开(公告)日：2006-11-16
申请号：US11126508
申请日：2005-05-10
申请人： Satoru Araki , Robert Beach , Marie-Claire Cyrille , Wipul Jayasekara , Quang Le , Jui-Lung Li , David Seagle , Howard Zolla
发明人： Satoru Araki , Robert Beach , Marie-Claire Cyrille , Wipul Jayasekara , Quang Le , Jui-Lung Li , David Seagle , Howard Zolla
IPC分类号： G11B5/33
CPC分类号： G11B5/3909 , B82Y10/00 , G11B5/112 , G11B5/3169 , G11B5/3906 , Y10T29/49041 , Y10T29/49044 , Y10T29/49046
摘要： A method for fabricating magnetic side shields for an MR sensor of a magnetic head. Following the deposition of MR sensor layers, a first DLC layer is deposited. Milling mask layers are then deposited, and outer portions of the milling mask layers are removed such that a remaining central portion of the milling mask layers is formed having straight sidewalls and no undercuts. Outer portions of the sensor layers are then removed such that a relatively thick remaining central portion of the milling mask resides above the remaining sensor layers. A thin electrical insulation layer is deposited, followed by the deposition of magnetic side shields. A second DLC layer is deposited and the remaining mask layers are then removed utilizing a chemical mechanical polishing (CMP) liftoff step. Thereafter, the first DLC layer and the second DLC layer are removed and a second magnetic shield layer is then fabricated thereabove.

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