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    • 31. 发明授权
    • Viterbi decoding method and decoder capable of eliminating phase
indeterminacy
    • 维特比解码方法和能够消除相位不确定性的解码器
    • US5724394A
    • 1998-03-03
    • US503942
    • 1995-07-19
    • Tamotsu IkedaYasunari IkedaTakahiro Okada
    • Tamotsu IkedaYasunari IkedaTakahiro Okada
    • H04L27/00C04B28/18H03M13/23H03M13/25H03M13/41H04L25/08H04L27/38H04L87/06
    • H03M13/41H03M13/25H03M13/6325H03M13/6502
    • In a Viterbi decoder and a Viterbi decoding method, a modulating method and a phase of a carrier wave, employed in a transmitter apparatus can be automatically followed up in a receiver apparatus. The Viterbi decoder is comprised of a phase shifting circuit for shifting a phase of a reproduced carrier wave of a reception signal in response to a phase-shift control signal, thereby producing a phase-shifted signal; a distance calculating circuit for receiving the phase-shifted signal to calculate a square Euclidean distance between a signal point of the phase-shifted signal and a signal point defined in a predetermined modulating method; path metric calculator for calculating a path metric with respect to each of the phases from the calculated square Euclidean distance value; a selector means for selecting a minimum value of the path metric for each of the phases; and a phase-shift control signal producing circuit for producing the phase-shift control signal used to control the phase shifting means in such a manner that the phase of the reproduced carrier wave of the reception signal is set to a phase corresponding to the minimum path metric value.
    • 在维特比解码器和维特比解码方法中,可以在接收机装置中自动跟踪在发送装置中采用的载波的调制方法和相位。 维特比解码器包括一个移相电路,用于响应于相移控制信号移位一个接收信号的再生载波的相位,从而产生相移信号; 距离计算电路,用于接收相移信号以计算相移信号的信号点与以预定调制方法定义的信号点之间的平方欧几里德距离; 路径度量计算器,用于根据所计算的平方欧几里德距离值计算相对于每个相位的路径度量; 选择器装置,用于选择每个相位的路径度量的最小值; 以及相移控制信号产生电路,用于产生用于控制相移装置的相移控制信号,使得接收信号的再现载波的相位被设置为与最小路径相对应的相位 度量值。
    • 33. 发明授权
    • OFDM demodulation device and method
    • OFDM解调装置及方法
    • US08406322B2
    • 2013-03-26
    • US12278709
    • 2007-02-06
    • Takuya OkamotoTaku YamagataTakahiro Okada
    • Takuya OkamotoTaku YamagataTakahiro Okada
    • H04L27/28
    • H04L27/2657H04L5/0007H04L5/0048H04L27/261H04L27/2675
    • An orthogonal frequency division multiplexed (OFDM) demodulation device for demodulating an OFDM signal is disclosed. The device includes a means that demodulates the OFDM signal to produce a baseband OFDM signal. The device also includes a means that detects a carrier frequency offset amount that is a shift amount of a center frequency of the baseband OFDM signal, based on correlation of subcarriers to which a predetermined signal is inserted. Additionally, the device includes a means that controls a frequency of the carrier signal depending on the carrier frequency offset amount. The means that detects the carrier frequency offset amount divides subcarriers into a plurality of groups, calculates a correlation value with respect to an adjacent transmission symbol for each of the groups, adds the correlation values to each other for all the groups, and defines an offset amount assumed when a maximum addition-result value is obtained as the carrier frequency offset amount.
    • 公开了一种用于解调OFDM信号的正交频分复用(OFDM)解调装置。 该装置包括解调OFDM信号以产生基带OFDM信号的装置。 该装置还包括基于插入了预定信号的子载波的相关性来检测作为基带OFDM信号的中心频率的移位量的载波频率偏移量的装置。 另外,该装置包括根据载波频率偏移量来控制载波信号的频率的装置。 检测载波频率偏移量的装置将副载波分成多个组,针对每个组计算相对于相邻传输符号的相关值,将所有组的相关值相加,并且定义偏移量 当获得最大相加结果值作为载波频率偏移量时,假定该量。
    • 34. 发明申请
    • ROLLING BEARING
    • 滚动轴承
    • US20130016938A1
    • 2013-01-17
    • US13637369
    • 2011-03-18
    • Takahiro OkadaKatsunori Mineno
    • Takahiro OkadaKatsunori Mineno
    • F16C33/34F16C33/62F16C33/32
    • F16C33/32F16C19/06F16C33/62F16C33/64F16C2204/70F16C2361/61
    • A rolling bearing is disclosed of which the lifespan is increased by reducing brittle flaking and impression-induced flaking on the raceways of inner and outer races and the rolling elements. Steel containing 1.80-1.89% by weight of chrome (brittle flaking-resistant steel) is subjected to carbonitriding and then to hardening and tempering. The chrome reduces generation of white layers which are aggregates of carbon, thus reducing brittle flaking on e.g. the raceways (1a, 4a) due to the white layers. A residual austenite region (5) that forms when the steel is hardened and tempered increases toughness of the steel surface, thus reducing impression-induced flaking due to foreign matter such as wear dust. By reducing both brittle flaking and impression-induced flaking, it is possible to extend the lifespan of the bearing, and reduce maintenance cost such as the cost for changing lubricating oil.
    • 公开了一种滚动轴承,其寿命通过减少内圈和外圈和滚动元件的滚道上的脆性剥落和压印引起的剥落而增加。 将含有1.80-1.89重量%的铬(耐脆性耐剥离钢)的钢进行碳氮共渗,然后进行硬化和回火。 铬减少产生作为碳的聚集体的白色层,从而减少例如玻璃的脆性剥落。 由于白色层,导轨(1a,4a)。 当钢被硬化和回火时形成的残余奥氏体区域(5)增加钢表面的韧性,从而减少由于诸如磨损粉尘等异物引起的压痕引起的剥落。 通过减少脆性剥落和压印引起的剥落,可以延长轴承的寿命,并降低维护成本,例如改变润滑油的成本。
    • 35. 发明授权
    • Steering lock apparatus
    • 转向锁装置
    • US08001814B2
    • 2011-08-23
    • US12312084
    • 2007-11-08
    • Takahiro OkadaKenjirou HayashiRyuichi Yoshida
    • Takahiro OkadaKenjirou HayashiRyuichi Yoshida
    • B60R25/02
    • B60R25/02153B60R21/05Y10T70/5659Y10T70/5664Y10T70/5956
    • A motor unit (9) and the like are arranged on a frame body (3) covered with a cover (6). A rod guide portion (4) is protruded from the frame body (3). A lock rod (14) is disposed in this rod guide portion (4) so as to be freely movable. Weak portions (17, 18) are provided on the rod guide portion (4) and the lock rod (14), respectively. A deadlock mechanism (30) is disposed closer to a tip end side of the rod guide portion (4) than the guide-side weak portion (17) thereof. The deadlock mechanism (30) includes: a lock pin (31) urged to a deadlock engagement position where a region of the lock rod (14), which is closer to the tip end side than the rod-side weak portion (18), is locked; and a lock control member (33) that inhibits movement of the lock pin (31) to a locked position thereof before the weak portions (17, 18) are cut off, and releases such regulation to the lock pin (31) after the weak portion (17, 18) are cutoff. The lock control member (33) is disposed in a region where the movement of the lock pin (31) is regulated by assembling force between the cover (6) and the frame body (3). When the cover (6) is detached from the frame body (3), the lock control member (33) positionally shifts in a direction of releasing the regulation of the movement of the lock pin (31).
    • 马达单元(9)等布置在覆盖有盖(6)的框体(3)上。 杆引导部分(4)从框体(3)突出。 锁杆(14)设置在该杆引导部分(4)中以便可自由移动。 弱杆部分(17,18)分别设置在杆引导部分(4)和锁定杆(14)上。 死杆机构(30)比其导向侧弱部(17)更靠近杆引导部(4)的前端侧设置。 所述死锁机构(30)包括:被锁定到死锁接合位置的锁定销(31),其中所述锁定杆(14)的比所述杆侧弱部(18)更靠近所述前端侧的区域, 被锁定 以及在所述弱部(17,18)被切断之前禁止所述锁定销(31)向其锁定位置移动的锁定控制构件(33),并且在所述弱定位件 部分(17,18)被切断。 锁定控制构件(33)设置在通过盖(6)和框架体(3)之间的组装力来调节锁定销(31)的移动的区域。 当盖(6)从框架体(3)拆下时,锁定控制构件(33)沿释放锁定销(31)的运动的方向的位置移动。
    • 38. 发明申请
    • STEERING LOCK DEVICE
    • 转向锁定装置
    • US20110132048A1
    • 2011-06-09
    • US13057060
    • 2009-08-03
    • Takahiro Okada
    • Takahiro Okada
    • B60R25/02
    • B60R25/02Y10T70/5646Y10T70/565Y10T70/5681Y10T70/569Y10T70/5765Y10T70/5889Y10T70/5898Y10T70/5956Y10T70/596Y10T70/5965Y10T292/0976
    • A steering lock device includes a lock member that is slidable between a lock position and an unlock position, and a slider that is disposed slidably in a direction perpendicular to a moving direction of the lock member. A sloped portion that is linearly sloped toward the steering shaft along a slide direction of the slider is provided on at least one of the lock member and the slider. The lock member is shifted between the lock position and the unlock position by the sloped portion in response to sliding of the slider. According to the steering lock device, downsizing can be brought due to its short height along a stroke direction of the lock member and cost reduction by commoditization of its main components can be achieved.
    • 转向锁定装置包括可在锁定位置和解锁位置之间滑动的锁定构件以及在与锁定构件的移动方向垂直的方向上可滑动地设置的滑块。 在锁定构件和滑块中的至少一个上设置有沿着滑块的滑动方向朝向转向轴线性倾斜的倾斜部分。 响应于滑块的​​滑动,锁定构件在锁定位置和解锁位置之间由倾斜部分移动。 根据转向锁定装置,由于其沿着锁定构件的行程方向的短的高度可以实现小型化,并且可以实现其主要部件的商品化的成本降低。
    • 39. 发明申请
    • STEERING LOCK APPARATUS (AS AMENDED)
    • 转向装置(已修改)
    • US20100064742A1
    • 2010-03-18
    • US12312084
    • 2007-11-08
    • Takahiro OkadaKenjirou HayashiRyuichi Yoshida
    • Takahiro OkadaKenjirou HayashiRyuichi Yoshida
    • B60R25/02
    • B60R25/02153B60R21/05Y10T70/5659Y10T70/5664Y10T70/5956
    • A motor unit (9) and the like are arranged on a frame body (3) covered with a cover (6). A rod guide portion (4) is protruded from the frame body (3). A lock rod (14) is disposed in this rod guide portion (4) so as to be freely movable. Weak portions (17, 18) are provided on the rod guide portion (4) and the lock rod (14), respectively. A deadlock mechanism (30) is disposed closer to a tip end side of the rod guide portion (4) than the guide-side weak portion (17) thereof. The deadlock mechanism (30) includes: a lock pin (31) urged to a deadlock engagement position where a region of the lock rod (14), which is closer to the tip end side than the rod-side weak portion (18), is locked; and a lock control member (33) that inhibits movement of the lock pin (31) to a locked position thereof before the weak portions (17, 18) are cut off, and releases such regulation to the lock pin (31) after the weak portion (17, 18) are cutoff. The lock control member (33) is disposed in a region where the movement of the lock pin (31) is regulated by assembling force between the cover (6) and the frame body (3). When the cover (6) is detached from the frame body (3), the lock control member (33) positionally shifts in a direction of releasing the regulation of the movement of the lock pin (31).
    • 马达单元(9)等布置在覆盖有盖(6)的框体(3)上。 杆引导部分(4)从框体(3)突出。 锁杆(14)设置在该杆引导部分(4)中以便可自由移动。 弱杆部分(17,18)分别设置在杆引导部分(4)和锁定杆(14)上。 死杆机构(30)比其导向侧弱部(17)更靠近杆引导部(4)的前端侧设置。 所述死锁机构(30)包括:被锁定到死锁接合位置的锁定销(31),其中所述锁定杆(14)的比所述杆侧弱部(18)更靠近所述前端侧的区域, 被锁定 以及在所述弱部(17,18)被切断之前禁止所述锁定销(31)向其锁定位置移动的锁定控制构件(33),并且在所述弱定位件 部分(17,18)被切断。 锁定控制构件(33)设置在通过盖(6)和框架体(3)之间的组装力来调节锁定销(31)的移动的区域。 当盖(6)从框架体(3)拆下时,锁定控制构件(33)沿释放锁定销(31)的运动的方向的位置移动。