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    • 3. 发明申请
    • Transmission method
    • 传输方式
    • US20080225927A1
    • 2008-09-18
    • US12148084
    • 2008-04-15
    • Noriaki MiyazakiToshinori SuzukiFumio Watanabe
    • Noriaki MiyazakiToshinori SuzukiFumio Watanabe
    • H04B1/707H04L27/10
    • H04J13/12H04J11/00H04J13/004H04L5/0021H04L27/206H04L27/2626
    • In a transmission method of the present invention, when transmitting an information bit from a transmitter to a receiver, an encoder of the transmitter firstly inputs and encodes the information bit, and a modulator then modulates the encoded information bit to create a modulation symbol. A spreader spreads the obtained modulation symbol using a rotation orthogonal code having a rotation angle that is appropriate to a combination of the modulation method and the coding rate, and transmits it to a transmission path. The receiver performs a reverse operation of the transmitter, and decodes the information bit. In QPSK modulation where the coding rate of an error-correction code is ½, when a rotation angle that obtains a same signal point as OFDM is 0°, spreading is performed using a rotation orthogonal code having a rotation angle of between 17° and 45°, or between −17° and −45°, thereby reducing bit error and enabling highly-reliable communication to be achieved.
    • 在本发明的传输方法中,当从发射机向接收机发送信息比特时,发射机的编码器首先对信息比特进行编码,然后调制编码的信息比特以产生调制符号。 扩展器使用具有适于调制方法和编码率的组合的旋转角度的旋转正交码扩展获得的调制符号,并将其发送到传输路径。 接收机执行发射机的反向操作,并对信息位进行解码。 在纠错码的编码率为1/2的QPSK调制中,当获得与OFDM相同的信号点的旋转角为0°时,使用旋转角度为17°〜45°的旋转正交码进行扩频 °或-17°至-45°之间,从而减少位误差并实现高度可靠的通信。
    • 4. 发明授权
    • Transmitter and receiver
    • 发射机和接收机
    • US07317747B2
    • 2008-01-08
    • US10780591
    • 2004-02-17
    • Noriaki MiyazakiToshinori Suzuki
    • Noriaki MiyazakiToshinori Suzuki
    • H04L27/00
    • H04B1/7097H04B2201/70701
    • A receiver informs a delay profile and CIR measured in an FDE or a Rake receiver, together with a bit error rate of a received signal that is required in a receiver, as quality information to a transmitter. In the transmitter, based on the delay profile and CIR contained in the notified quality information, a number of code division multiplex and a frame format are decided in a decision circuit such that a bit error rate of a received signal, which is necessary on the receiver side, can be obtained. In addition, a transmission selection switch selects one of a unique word insertion unit and a cyclic prefix insertion unit that create a frame format for FDE reception and a pilot insertion unit and a complex scrambling unit that create a frame format for Rake reception, and data is then transmitted.
    • 接收机将在FDE或Rake接收机中测量的延迟分布和CIR以及接收机中所需的接收信号的误码率作为向发射机的质量信息通知。 在发送机中,基于所通知的质量信息中包含的延迟分布和CIR,在判定电路中判定多个码分多路复用和帧格式,使得接收信号的误码率在 接收端,可以得到。 此外,发送选择开关选择创建FDE接收的帧格式的唯一字插入单元和循环前缀插入单元之一,以及创建Rake接收的帧格式的导频插入单元和复数加扰单元,以及数据 然后传输。
    • 10. 发明授权
    • Phosphor and fluorescent display device
    • 荧光显示装置
    • US06572786B2
    • 2003-06-03
    • US09839408
    • 2001-04-23
    • Kuniaki KawatsuToshinori SuzukiChiyuki Hayakawa
    • Kuniaki KawatsuToshinori SuzukiChiyuki Hayakawa
    • C09K1154
    • C09K11/025C09K11/565C09K11/623
    • A phosphor capable of preventing a deterioration in luminous characteristics thereof, particularly, high-temperature operation characteristics thereof due to a SiO2-containing pigment added thereto. The phosphor has a pigment contained therein, wherein the pigment has SiO2 added thereto and is melted, to thereby be coated with sodium glass. This permits gas generated during operation of the phosphor to be adsorbed on the phosphor as compared with a conventional phosphor to which the pigment subjected to the above-described treatment is not added, resulting in luminance retention of the phosphor after operation thereof being increased. In particular, it permits characteristics of the non-driven phosphor after the high-temperature operation test to be enhanced.
    • 能够防止发光特性劣化的荧光体,特别是由于添加了含有SiO 2的颜料而导致的高温运转特性。 荧光体中含有颜料,其中颜料添加有SiO 2并熔融,从而用钠玻璃涂覆。 与不添加进行上述处理的颜料的常规荧光体相比,能够使荧光体的工作中产生的气体吸附在荧光体上,能够使荧光体的工作后的亮度保持增加。 特别是,能够提高高温运转试验后的非驱动荧光体的特性。