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1. 发明授权

US08419575B2 Ball-type tensioner 有权
标题翻译：球型张紧器
公开(公告)号：US08419575B2
公开(公告)日：2013-04-16
申请号：US13081124
申请日：2011-04-06
申请人： Osamu Yoshida , Yuji Kurematsu , Atsushi Hayami
发明人： Osamu Yoshida , Yuji Kurematsu , Atsushi Hayami
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： A tensioner for a chain or similar power transmission medium comprises a spring-biased plunger having annular rack teeth with gradually sloping forward surfaces and steeper rearward surfaces. The teeth are engaged by radially movable balls received in inclined grooves in an axially movable annular ball seat disposed in an annular groove formed in the wall of a plunger-accommodating hole in a tensioner housing. The bottoms of the inclined grooves face a steep rearward surface of a rack tooth, and the annular ball seat is axially movable in the annular groove and biased in the plunger protruding direction by a spring that exerts a biasing force greater than the biasing force exerted on the plunger. The balls and the movable annular ball seat block retraction of the plunger on engine start-up, but permit retraction when excessive force is imparted to the plunger while the plunger is in a protruding condition.
摘要翻译：用于链式或类似动力传递介质的张紧器包括具有环形齿条齿的弹簧偏置柱塞，其具有逐渐倾斜的前表面和更陡的后表面。这些齿通过容纳在设置在形成在张紧器壳体中的柱塞容纳孔的壁中的环形槽中的可轴向移动的环形球座中的倾斜槽中接收。倾斜槽的底部面向齿条齿的陡峭的后表面，并且环形球座可在环形槽中轴向移动，并通过弹簧施加偏压力，该弹簧施加在柱塞突出方向上，该弹簧施加大于施加在柱塞。球和可动环形球座座在发动机启动时柱塞缩回，但是当柱塞处于突出状态时，当柱塞施加过大的力时允许回缩。

2. 发明申请

US20120295747A1 STATIONARY CHAIN GUIDE 审中-公开
标题翻译：国际链指南
公开(公告)号：US20120295747A1
公开(公告)日：2012-11-22
申请号：US13468073
申请日：2012-05-10
申请人： Yuichiri Ishikawa , Atsushi Hayami , Tadashi Shintani
发明人： Yuichiri Ishikawa , Atsushi Hayami , Tadashi Shintani
IPC分类号： F16H7/18
CPC分类号： F16H7/18 , F16H2007/0872
摘要： An elongated stationary guide for a traveling transmission chain in an engine such as a timing chain has a narrow reinforcing groove formed along the longitudinal direction of a metal base plate of the guide by surface-pressing, whereby the base plate exhibits plastic deformation. The narrow reinforcing groove extends toward the ends of the base plate past the locations at which the base plate is mounted on an engine block by mounting bolts.
摘要翻译：用于诸如正时链条的发动机中的行进传动链的细长固定引导件具有通过表面压制沿着引导件的金属基板的纵向方向形成的窄的加强槽，由此基板呈现塑性变形。狭窄的加强槽通过安装螺栓朝基板的端部延伸穿过基板安装在发动机缸体上的位置。

3. 发明申请

US20110021298A1 CHAIN TENSIONER 有权
标题翻译：链条张紧器
公开(公告)号：US20110021298A1
公开(公告)日：2011-01-27
申请号：US12829706
申请日：2010-07-02
申请人： Yuji Kurematsu , Atsushi Hayami
发明人： Yuji Kurematsu , Atsushi Hayami
IPC分类号： F16H7/08
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0812 , F16H2007/0853 , F16H2007/0855 , F16H2007/0859 , F16H2007/0891
摘要： In a chain tensioner, an expansible ring is disposed in an internal groove formed in the inner wall of a plunger-accommodating hole near an open end thereof. The ring cooperates with grooves formed on the plunger to exert a ratchet action. The relationship between the angles of the surfaces of the internal groove and the grooves on the plunger allows the plunger to protrude, restricts retraction of the plunger on start-up of a chain transmission, but allows retraction when chain tension becomes excessive. In one embodiment, in which the ring is a C-ring, the tensioner housing can be formed with external threads for mounting in a threaded hole on a timing chain cover or other engine part. In other embodiments, the ring can have externally protruding levers for manipulation of the ring.
摘要翻译：在链条张紧器中，可膨胀的环设置在形成在其开口端附近的柱塞容纳孔的内壁中的内槽中。环与形成在柱塞上的凹槽配合以施加棘轮动作。内槽的表面和柱塞上的槽之间的关系允许柱塞突出，限制链条传动装置启动时柱塞的缩回，但当链张力过大时允许缩回。在其中环是C形环的一个实施例中，张紧器壳体可以形成有外螺纹，用于安装在正时链盖或其它发动机部件上的螺纹孔中。在其他实施例中，环可以具有用于操纵环的外部突出的杠杆。

4. 发明申请

US20090036242A1 CHAIN GUIDE FOR USE IN ENGINE 有权
标题翻译：用于发动机的链指南
公开(公告)号：US20090036242A1
公开(公告)日：2009-02-05
申请号：US12128175
申请日：2008-05-28
申请人： Atsushi Hayami , Tomoya Iwata
发明人： Atsushi Hayami , Tomoya Iwata
IPC分类号： F16H7/08
CPC分类号： F16H7/18 , F16H2007/0872
摘要： A chain guide is composed of a resin shoe engageable with an aluminum base frame. The shoe has a hook formed at a chain entry end for engagement with a chain entry end of the base frame, and a C-shaped hook at the chain exit end engageable with a side edge of the base frame. The shoe is engaged with the base by first engaging the C-shaped hook with the side edge of the base frame, then flexing the chain entry end of the shoe until the hook at the chain entry end can receive the chain entry end of the base. The shoe is moved a short distance toward the chain exit end of the base until a projection formed on a back surface of the shoe near the chain entry end snaps into a depression formed on a front surface of the base frame, locking the shoe and base together.
摘要翻译：链条引导件由可与铝基框架接合的树脂靴构成。鞋具有形成在链条入口端处的钩子，用于与基部框架的链条进入端接合，并且在链条出口端处的C形钩可与基部框架的侧边缘接合。通过首先使C形钩与基座的侧边缘接合，然后使鞋的链条进入端弯曲，直到链条进入端的钩子可以接收底座的链条进入端，鞋与底座接合。鞋子朝向基座的链条出口端移动很短的距离，直到形成在靠近链条进入端的鞋的后表面上的突起卡入形成在基座框架的前表面上的凹陷中，锁定鞋和底座一起。

5. 发明授权

US07468012B2 Ratchet type tensioner 有权
标题翻译：棘轮式张紧器
公开(公告)号：US07468012B2
公开(公告)日：2008-12-23
申请号：US11319352
申请日：2005-12-28
申请人： Atsushi Hayami , Toshifumi Sato
发明人： Atsushi Hayami , Toshifumi Sato
IPC分类号： F16H7/08
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0853 , F16H2007/0859
摘要： In a ratchet tensioner, a pawl, pivoted on a shaft in the tensioner housing, engages teeth on a plunger protruding from the housing to allow protruding movement of the plunger, while limiting retracting movement to a backlash distance. The pawl is biased into contact with the teeth on the plunger by a spring disposed in a hole in the housing and acting, through a piston slidable in the same hole, against a convexly curved surface of the pawl. The piston has a reduced portion in engagement with the pawl, which allows the pawl to be miniaturized without excessively reducing the radial dimensions of the portion of the pawl surrounding the pivot shaft.
摘要翻译：在棘轮张紧器中，枢转在张紧器壳体中的轴上的棘爪接合从壳体突出的柱塞上的齿，以允许柱塞突出移动，同时将缩回运动限制到间隙距离。棘爪通过设置在壳体中的孔中的弹簧偏置成与柱塞上的齿接触，并且通过可在同一孔中滑动的活塞抵抗棘爪的凸形弯曲表面。活塞具有与棘爪接合的减小部分，其允许棘爪小型化，而不会过度地减小围绕枢转轴的棘爪的部分的径向尺寸。

6. 发明授权

US07016286B2 Digital signal modulation method, digital signal modulation apparatus, encoding method, encoding apparatus, storage medium, transmission apparatus and program 失效
公开(公告)号：US07016286B2
公开(公告)日：2006-03-21
申请号：US10178619
申请日：2002-06-25
申请人： Atsushi Hayami , Tsuyoshi Oki , Toshio Kuroiwa
发明人： Atsushi Hayami , Tsuyoshi Oki , Toshio Kuroiwa
IPC分类号： G11B5/09
CPC分类号： H03M5/145 , G11B20/1426
摘要： First and second synchronous words having respective numbers of times of inversion different from each other in NRZI conversion are generated in a synchronous word generation portion, and first and second code word series data are generated by arranging code word data generated making reference to a run-length coding table after these two synchronous words. With respect to the first and second code word series data, DSV calculation results stored in two DSV calculation peak value memories corresponding to these data are compared with each other by a peak value comparison portion. Based on a comparison result, the code word series data having a smaller direct-current component generated in NRZI conversion is selected.

7. 发明授权

US06853320B2 Modulation system 有权
标题翻译：调制系统
公开(公告)号：US06853320B2
公开(公告)日：2005-02-08
申请号：US10005247
申请日：2001-12-07
申请人： Atsushi Hayami , Takayuki Sugahara
发明人： Atsushi Hayami , Takayuki Sugahara
IPC分类号： G11B20/00 , G11B20/14 , H03M5/14 , H03M3/00
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/00115 , G11B20/00144 , G11B20/00181 , G11B20/00195 , G11B20/00268 , G11B20/1426 , G11B2020/143 , H03M5/145
摘要： A 6-bit output code word is generated in response to every 4-bit input code word by referring to a set of encoding tables. The encoding tables contain output code words assigned to input code words, and contain encoding-table designation information accompanying each output code word. The encoding-table designation information designates an encoding table among the encoding tables which is used next to generate an output code word immediately following the output code word accompanied with the encoding-table designation information. The generated output code words are sequentially connected into a sequence which follows run length limiting rules. The run length limiting rules are changed between RLL(1, 7) and RLL(1, 8) in response to auxiliary information to superimpose the auxiliary information on the sequence of the generated output code words.
摘要翻译：通过参考一组编码表，响应于每个4位输入代码字产生6位输出代码字。编码表包含分配给输入代码字的输出代码字，并且包含伴随每个输出代码字的编码表指定信息。编码表指定信息指定编码表中的编码表，该编码表接下来用于生成紧跟在与编码表指定信息相关的输出代码字之后的输出代码字。所生成的输出码字被顺序地连接到跟随游程长度限制规则之后的序列中。响应于辅助信息在RLL（1,7）和RLL（1,8）之间改变运行长度限制规则，以将辅助信息叠加在所生成的输出码字的序列上。

8. 发明授权

US06819724B2 Viterbi decoder and Viterbi decoding method 有权
标题翻译：维特比解码器和维特比解码方法
公开(公告)号：US06819724B2
公开(公告)日：2004-11-16
申请号：US09737597
申请日：2000-12-18
申请人： Atsushi Hayami , Tsuyoshi Oki
发明人： Atsushi Hayami , Tsuyoshi Oki
IPC分类号： H04D100
CPC分类号： H03M13/6331 , G11B20/10009 , H03M13/3961 , H03M13/41 , H03M13/6343
摘要： A data estimating circuit outputs estimation data which estimates input data at a time earlier by a predetermined bit cycle than the input data based on decoded data series outputted from a path memory. A target value computing circuit corrects the target value with a difference between the estimation data and input data as a target value error and outputs obtained plural first target values to a branchmetric operating circuit as plural target values. Because the branchmetric operating circuit can conduct branchmetric operation based on plural first target values near plural averages having the highest incidence (having peaks in histogram), decoding performance can be improved more as compared to using fixed target values.
摘要翻译：数据估计电路输出基于从路径存储器输出的解码数据序列，输出预测数据比预定的位周期预测输入数据的估计数据。目标值计算电路用估计数据和输入数据之间的差作为目标值误差来校正目标值，并将获得的多个第一目标值作为多个目标值输出到分支操作电路。由于分支操作电路可以基于具有最高入射角（具有直方图峰值）的多个平均值附近的多个第一目标值进行支路测量操作，所以与使用固定目标值相比，可以更好地提高解码性能。

9. 发明授权

US06670896B2 Method and apparatus for modulating and demodulating digital data 有权
标题翻译：用于调制和解调数字数据的方法和装置
公开(公告)号：US06670896B2
公开(公告)日：2003-12-30
申请号：US10355115
申请日：2003-01-31
申请人： Atsushi Hayami
发明人： Atsushi Hayami
IPC分类号： H03M700
CPC分类号： G11B20/10 , G11B20/1426 , G11B2020/1457 , G11B2020/1461 , G11B2020/1465 , H03M5/145 , H03M7/46
摘要： Main encoding tables are normally used in modulating “p”-bit input data words into “q”-bit output code words. First and second substitution encoding tables are periodically used instead of the main encoding tables in the modulation. Regarding the modulation using the first and second substitution encoding tables, “r” connection bits are added to every resultant “q”-bit output code word to get a “q+r”-bit output code word. An output-code-word sequence is generated by connecting “q”-bit output code words produced by the modulation using the main encoding tables, and “q+r”-bit output code words caused by the modulation using the first and second substitution encoding tables. The main encoding tables are designed to enable DSV control to be executed when a current input data word is equal to one of prescribed input data words. The first and second substitution encoding tables are designed to enable DSV control to be executed.
摘要翻译：主编码表通常用于将“p”位输入数据字调制成“q”位输出码字。周期性地使用第一和第二替换编码表，而不是调制中的主编码表。关于使用第一和第二替代编码表的调制，将“r”个连接位相加到每个结果“q”位输出码字以得到“q + r”位输出码字。通过使用主编码表连接由调制产生的“q”位输出码字和使用第一和第二取代由调制引起的“q + r”位输出码字来产生输出码字序列编码表。主编码表被设计为当当前输入数据字等于规定的输入数据字之一时，执行DSV控制。第一和第二替代编码表被设计成使得能够执行DSV控制。

10. 发明授权

US08568258B2 Chain tensioner 有权
标题翻译：链张紧器
公开(公告)号：US08568258B2
公开(公告)日：2013-10-29
申请号：US13097468
申请日：2011-04-29
申请人： Atsushi Hayami , Osamu Yoshida , Yuji Kurematsu
发明人： Atsushi Hayami , Osamu Yoshida , Yuji Kurematsu
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0855 , F16H2007/0859
摘要： In a tensioner having a ratchet mechanism composed of annular teeth on a plunger and an expansible resilient ring disposed in a groove formed in the inner peripheral surface of a plunger-accommodating hole in a tensioner housing, the rear surfaces of the annular teeth have a steep slope, and the front surfaces of the annular teeth have a gradual slope with a convex curvature such that the rate of change of the slope decreases proceeding in the direction of retraction of the plunger.
摘要翻译：在具有由柱塞上的环形齿构成的棘轮机构的张紧器和设置在形成在张紧器壳体中的柱塞容纳孔的内周面的槽中的可膨胀弹性环的情况下，环形齿的后表面具有陡峭斜面，并且环形齿的前表面具有具有凸曲率的渐变斜率，使得斜面的变化率在柱塞的缩回方向上减小。

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