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21. 发明授权

US07475418B2 Digital broadcasting system and method for automatically locating programs after relocation 有权
标题翻译：移动后自动定位程序的数字广播系统及方法
公开(公告)号：US07475418B2
公开(公告)日：2009-01-06
申请号：US10089282
申请日：2001-07-30
申请人： Tamotsu Ikeda , Shinji Negishi
发明人： Tamotsu Ikeda , Shinji Negishi
IPC分类号： H04N7/20 , H04B7/00 , H04B1/18 , H04B1/10 , H03K9/00 , H03D1/04 , G06F15/16
CPC分类号： H04N21/435 , H04H20/30 , H04H60/13 , H04N7/163 , H04N21/235 , H04N21/2362 , H04N21/41422 , H04N21/4383 , H04N21/44209 , H04N21/4524 , H04N21/858
摘要： A broadcasting station transmits a program of continuous sequence of events as a transport stream so as to be received by at least a mobile receiver. The broadcasting station provides the transport stream with link information showing the links between the transport stream it transmits in its own service area and the programs being transmitted in adjacent service areas. With this arrangement, the mobile receiver can receive the program it is receiving continuously in an adjacent service area by referring to the link information if it moves from the original service area into the adjacent service area.
摘要翻译：广播电台将作为传输流的连续事件序列发送到至少由移动接收机接收的节目。广播站向传输流提供链路信息，链路信息表示其在其自己的服务区域中传输的传输流与在相邻服务区域中传送的节目之间的链路。通过这种布置，如果移动接收机从原始服务区域移动到相邻的服务区域中，则可以通过参考链路信息，在相邻服务区域中连续接收正在接收的程序。

22. 发明授权

US06973118B1 Digital broadcasting apparatus 有权
标题翻译：数字广播设备
公开(公告)号：US06973118B1
公开(公告)日：2005-12-06
申请号：US09914131
申请日：2000-02-25
申请人： Yasunari Ikeda , Toshihisa Hyakudai , Takahiro Okada , Tamotsu Ikeda , Toru Kuroda , Naohiko Iai , Kenichi Tsuchida , Makoto Sasaki
发明人： Yasunari Ikeda , Toshihisa Hyakudai , Takahiro Okada , Tamotsu Ikeda , Toru Kuroda , Naohiko Iai , Kenichi Tsuchida , Makoto Sasaki
IPC分类号： H04H20/72 , H04L27/26 , H04B1/69 , H04J11/00 , H04N5/94
CPC分类号： H04L27/2618 , H04B2201/70706 , H04H20/72
摘要： A frequency interleaving circuit frequency-interleaves main signals generated according to sound data by parameters set according to frequencies of transmission channels. A sub-signal generating circuit generates sub-signals for transmission control including pilot signals. Mapping circuits modulate the sub-signals by using pseudo-random sequences generated based on initial values of random codes set according to frequencies of transmission channels. The frequency-interleaved main signals and the sub-signals modulated by the mapping circuits are OFDM-modulated. Then, they are converted to the frequencies of the transmission channels. An increase of a dynamic range of transmission signals can be suppressed by controlling the initial values of random codes set.
摘要翻译：频率交织电路按照根据传输信道的频率设置的参数，根据声音数据对由主要信号进行频率交织。子信号发生电路产生用于包括导频信号的传输控制的子信号。映射电路通过使用基于根据传输信道的频率设置的随机码的初始值生成的伪随机序列来调制子信号。频率交织的主信号和由映射电路调制的子信号被OFDM调制。然后，它们被转换成传输信道的频率。可以通过控制随机码集的初始值来抑制传输信号的动态范围的增加。

23. 发明申请

US20050147186A1 Ofdm demodulation apparatus 审中-公开
标题翻译： Ofdm解调装置
公开(公告)号：US20050147186A1
公开(公告)日：2005-07-07
申请号：US10505794
申请日：2003-12-18
申请人： Kazuhisa Funamoto , Takahiro Okada , Tamotsu Ikeda , Atsushi Yajima , Yasunari Ikeda
发明人： Kazuhisa Funamoto , Takahiro Okada , Tamotsu Ikeda , Atsushi Yajima , Yasunari Ikeda
IPC分类号： H04J11/00 , H04L7/08 , H04L27/14 , H04L27/26
CPC分类号： H04L27/2605 , H04L27/2657 , H04L27/2662 , H04L27/2676
摘要： An OFDM demodulation (1) is provided which includes a guard correlation/peak time detection circuit (12) to generate a peak timing Np of a guard interval correlation value, and a timing synchronization circuit (13) to estimate a symbol-boundary time Nx from the peak timing Np. The timing synchronization circuit (13) calculates the symbol-boundary time Nx by filtering the peak time Np by a DLL (delay locked loop) filter (43). Further, the DLL filter (43) includes a limiter (52) to limit the range of phase-error component and an asymmetric gain circuit (53) to change the magnitude of the gain correspondingly to the polarity of the phase error to prevent the timing from being pulled out due to a fading or multipath.
摘要翻译：提供了一种OFDM解调（1），其包括：保护相关/峰值时间检测电路（12），用于产生保护间隔相关值的峰值定时Np;以及定时同步电路（13），用于估计符号边界时间Nx 从峰值时刻Np。定时同步电路（13）通过DLL（延迟锁定环）滤波器（43）对峰值时间Np进行滤波来计算符号边界时间Nx。此外，DLL滤波器（43）包括限制相位误差分量范围的限幅器（52）和非对称增益电路（53），以相应于相位误差的极性改变增益的幅度，以防止定时由于衰落或多路径而被拉出。

24. 发明授权

US06327316B1 Data receiver using approximated bit metrics 失效
标题翻译：数据接收器使用近似比特度量
公开(公告)号：US06327316B1
公开(公告)日：2001-12-04
申请号：US08924415
申请日：1997-08-27
申请人： Tamotsu Ikeda
发明人： Tamotsu Ikeda
IPC分类号： H03D100
CPC分类号： H04L1/0069 , H04L1/0054
摘要： A data receiver for receiving data including multi-component signals representing symbols selected from a set of multi-component, multi-value symbols such as 16-QAM, 64-QAM or 256-QAM symbols. Each component of the signals denotes values for a plurality of bits, each bit being associated with one component of the signal. The receiver is arranged to set a value of a bit metric for each bit denoted by each signal based upon the value of the signal component associated with that bit. The bit metrics are selected so that when the signal component is in a first range, the bit metric is at a maximum; when the signal component is in a second range, the bit metric is at a minimum, whereas the signal component is in a third range, the bit metric has an intermediate value between the minimum and maximum values. The bit metric represents the probability that the receive signal represents a symbol denoting a particular value of the bit. The bit metrics can be subjected to bit-level processes such as bit insertion and bit diffusion reversal and the sequences of bit metrics can be subjected to maximum likelihood decoding schemes such as Viterbi decoding to deconvolute a convolutional code.
摘要翻译：一种用于接收数据的数据接收器，包括表示从诸如16-QAM，64-QAM或256-QAM符号的一组多分量多值符号中选出的符号的多分量信号。信号的每个分量表示多个位的值，每个位与信号的一个分量相关联。接收器被设置为基于与该位相关联的信号分量的值来为每个信号表示的每个位设置比特度量的值。选择比特度量，使得当信号分量处于第一范围时，比特度量处于最大值; 当信号分量处于第二范围时，比特度量处于最小值，而信号分量处于第三范围内，比特度量具有最小值和最大值之间的中间值。比特度量表示接收信号表示表示比特的特定值的符号的概率。比特度量可以进行比特级处理，例如比特插入和比特扩散反转，并且比特度量的序列可以经受最大似然解码方案，例如维特比解码以对卷积码进行解卷积。

25. 发明授权

US06169768A Receiving apparatus and method 失效
标题翻译：接收装置和方法
公开(公告)号：US06169768A
公开(公告)日：2001-01-02
申请号：US09070206
申请日：1998-04-30
申请人： Takahiro Okada , Osamu Ito , Tamotsu Ikeda
发明人： Takahiro Okada , Osamu Ito , Tamotsu Ikeda
IPC分类号： H04L2706
CPC分类号： H04L25/06 , H04L1/08 , H04L27/2647
摘要： A multiplication circuit is removed from a receiving apparatus which receives an orthogonally modulated information sequence. The real-number part and the imaginary-number part of a transmission parameter converted into a frequency range are input to hard determination circuits, respectively. The hard determination circuits convert the respective components into 1-bit data in accordance with a predetermined threshold value. Differential decoding circuits differentially decode the real-number part and the imaginary-number part which are converted into 1-bit data, respectively, and output the obtained data to cumulative addition circuits. The cumulative addition circuits cumulatively add the differentially demodulated data and supply it to identification-distance measurement circuits, respectively, and also to a selector. The identification-distance measurement circuits determine the identification distance, cause the selector to select the components with a greater distance and to supply them to a majority decision circuit. The majority decision circuit makes a majority decision of the data selected by the selector.
摘要翻译：从接收正交调制信息序列的接收装置移除乘法电路。转换成频率范围的传输参数的实数部分和虚数部分分别输入到硬判定电路。硬确定电路根据预定阈值将各个分量转换成1位数据。差分解码电路分别对分别转换成1位数据的实数部分和虚数部分进行差分解码，并将获得的数据输出到累积加法电路。累积加法电路分别累加差分解调数据，并将其分别提供给识别距离测量电路，并将其提供给选择器。识别距离测量电路确定识别距离，使得选择器选择具有更大距离的组件并将其提供给多数决定电路。多数决定电路对选择器选择的数据作出多数决定。

26. 发明授权

US6041432A Apparatus and method for detecting signal points using signal point-mapping 失效
标题翻译：使用信号点映射检测信号点的装置和方法
公开(公告)号：US6041432A
公开(公告)日：2000-03-21
申请号：US780347
申请日：1997-01-08
申请人： Tamotsu Ikeda
发明人： Tamotsu Ikeda
IPC分类号： H03M13/23 , H03M13/25 , H04L27/34 , H04L27/38 , G06F11/10 , H03M13/12
CPC分类号： H03M13/256 , H03M13/25 , H03M13/3961 , H03M13/4107 , H04L27/3416 , H04L27/3872
摘要： An apparatus and method for detecting signal points transmitted over a transmission line. A data transmitter encodes input data and maps this data in accordance with a Trellis Code Modulation technique. The mapped data is then modulated onto a particular carrier wave, and transmitted to a data receiver. The data receiver compensates for any detected phase shift in the carrier wave, and decodes the phase-corrected data to quickly detect parallel path information of the received data.
摘要翻译：一种用于检测通过传输线传输的信号点的装置和方法。数据发射机对输入数据进行编码，并根据网格码调制技术映射该数据。然后将映射的数据调制到特定载波上，并发送到数据接收器。数据接收器补偿载波中的任何检测到的相移，并对相位校正数据进行解码，以快速检测接收数据的并行路径信息。

27. 发明授权

US12025930B2 Fixing device including a pressure rotator setting an exit guide angle and image forming apparatus incorporating same 有权
公开(公告)号：US12025930B2
公开(公告)日：2024-07-02
申请号：US18063326
申请日：2022-12-08
申请人： Tamotsu Ikeda , Toshio Ogiso
发明人： Tamotsu Ikeda , Toshio Ogiso
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2064 , G03G15/2053 , G03G2215/2061
摘要： A fixing device includes a fixing rotator, a pressure rotator, a pressure plate, a pressing force adjuster, an entrance guide, an exit guide, and a guide. The pressure rotator presses the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The pressure plate rotates about a fulcrum to press the pressure rotator. The pressing force adjuster adjusts a pressing force of the pressure rotator. The entrance guide guides a recording medium entering the nip. The exit guide guides the recording medium ejected from the nip. The guide guides the pressure rotator in a direction inclined from a line connecting a rotation center of the fixing rotator and a rotation center of the pressure rotator toward downstream in a conveyance direction of the recording medium.

28. 发明授权

US10036987B2 Removable fixing device having a convex guide and image forming apparatus 有权
公开(公告)号：US10036987B2
公开(公告)日：2018-07-31
申请号：US15675827
申请日：2017-08-14
申请人： Shigeo Nanno , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
发明人： Shigeo Nanno , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2017 , G03G15/2032 , G03G15/2053 , G03G21/1685 , G03G2215/2035
摘要： A fixing device is removably installed inside an apparatus body including an apparatus guide. The fixing device includes a convex guide guided along the apparatus guide and a heater to heat a recording medium to fix a toner image on the recording medium. The heater includes a lateral end in a longitudinal direction of the heater. The lateral end is disposed inside the convex guide.

29. 发明申请

US20160313684A1 HEATER, FIXING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：加热器，固定装置和图像形成装置
公开(公告)号：US20160313684A1
公开(公告)日：2016-10-27
申请号：US15092206
申请日：2016-04-06
申请人： Tamotsu Ikeda
发明人： Tamotsu Ikeda
IPC分类号： H05B3/00 , G03G15/20
CPC分类号： G03G15/2057
摘要： A heater includes a tubular bulb and a filament disposed inside the bulb and extended in a longitudinal direction of the bulb. A first metallic foil is coupled to one lateral end of the filament in the longitudinal direction of the bulb. A second metallic foil is coupled to another lateral end of the filament in the longitudinal direction of the bulb. A first wire is coupled to the first metallic foil at a first contact. The first wire extends from the first contact in an intersecting direction intersecting the longitudinal direction of the bulb. A second wire is coupled to the second metallic foil at a second contact.
摘要翻译：加热器包括管状灯泡和布置在灯泡内部并沿灯泡的纵向方向延伸的灯丝。第一金属箔在灯泡的纵向连接到灯丝的一个横向端。第二金属箔在灯泡的纵向连接到灯丝的另一个侧端。第一线在第一接触处耦合到第一金属箔。第一线从与灯泡的纵向交叉的交叉方向从第一接触部延伸。第二线在第二接触处联接到第二金属箔。

30. 发明授权

US08874021B2 Media guide mechanism, fixing device and image forming apparatus incorporating same 有权
标题翻译：介质引导机构，固定装置和结合其的图像形成装置
公开(公告)号：US08874021B2
公开(公告)日：2014-10-28
申请号：US13535931
申请日：2012-06-28
申请人： Kohta Sakaya , Yasuhide Ohkubo , Tamotsu Ikeda , Yoshiharu Takahashi , Chikara Hiraoka , Toshio Ogiso
发明人： Kohta Sakaya , Yasuhide Ohkubo , Tamotsu Ikeda , Yoshiharu Takahashi , Chikara Hiraoka , Toshio Ogiso
IPC分类号： G03G15/20 , B65H5/36 , B65H5/06
CPC分类号： G03G15/2028 , B65H5/062 , B65H5/36 , B65H2402/24 , B65H2511/212 , B65H2515/81 , B65H2220/01 , B65H2220/08 , B65H2220/11
摘要： A mechanism for guiding a recording medium into a nip formed between a first rotary member subjected to heating, and a second rotary member pressed against the first rotary member includes a guide member and a biasing member. The guide member is disposed upstream from the nip to guide the recording medium therealong. The biasing member is connected to the guide member to mechanically bias the guide member. The guide member is subjected to a constant biasing force from the biasing member and to a pressure force from the recording medium. The pressure force is opposite the biasing force and variable with a stiffness of the recording medium being guided. The guide member is movable to different operational positions depending on the biasing and pressure forces acting thereon.
摘要翻译：用于将记录介质引导到形成在经受加热的第一旋转构件之间的辊隙中的机构和被压靠在第一旋转构件上的第二旋转构件包括引导构件和施力构件。引导构件设置在辊隙的上游，以在其上引导记录介质。偏置构件连接到引导构件以机械地偏置引导构件。引导构件受到来自偏压构件的恒定的偏压力和来自记录介质的压力。压力与偏压力相反，并且随着记录介质的刚度被引导而变化。引导构件可以根据作用在其上的偏压和压力而移动到不同的操作位置。

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