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公开(公告)号:US08494089B2
公开(公告)日:2013-07-23
申请号:US13029422
申请日:2011-02-17
IPC分类号: H04L27/00
CPC分类号: H04L25/0226 , H03G3/3052 , H04B7/04 , H04W52/52 , H04W84/12
摘要: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
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公开(公告)号:US08107556B2
公开(公告)日:2012-01-31
申请号:US12604712
申请日:2009-10-23
申请人: Tsuguhide Aoki , Ichiro Seto , Daisuke Takeda , Takehiko Toyoda , Ren Sakata
发明人: Tsuguhide Aoki , Ichiro Seto , Daisuke Takeda , Takehiko Toyoda , Ren Sakata
CPC分类号: H04L27/2611 , H04B7/06 , H04B7/0617 , H04B7/08 , H04B7/10 , H04J11/0036 , H04L1/1829 , H04L5/0023 , H04L5/0048 , H04L5/023 , H04L25/0226 , H04L27/2613 , H04L27/2626 , H04L27/2647 , H04W84/12
摘要: An orthogonal frequency division multiplexing (OFDM) signal transmission apparatus which transmits OFDM signals by using a plurality of transmission antennas includes a subcarrier setting device which sets signals for subcarriers so as to use some of the subcarriers of the OFDM signals as pilot subcarriers to transmit pilot signals and use the remaining subcarriers as data subcarriers to transmit data signals, the subcarrier setting device changing polarities of signals for the pilot subcarriers for each transmission antenna.
摘要翻译: 通过使用多个发送天线发送OFDM信号的正交频分多路复用(OFDM)信号发送装置包括:副载波设定装置,其对副载波设定信号,使用OFDM信号的一部分副载波作为导频子载波,发送导频 信号,并且使用剩余的子载波作为数据子载波来发送数据信号,副载波设置装置改变每个发射天线的导频子载波的信号的极性。
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公开(公告)号:US20110110046A1
公开(公告)日:2011-05-12
申请号:US13002806
申请日:2009-05-07
申请人: Kohji Itoh , Shinji Suminoe , Masato Onoue , Daisuke Takeda
发明人: Kohji Itoh , Shinji Suminoe , Masato Onoue , Daisuke Takeda
IPC分类号: H05K7/20
CPC分类号: H05K7/20963 , G02F1/133308 , G02F2001/133628 , G02F2203/60
摘要: Disclosed is a reinforcement frame (38) fixed to an outer package (37) of a heated component unit in a display (69), wherein a first heat dissipation fin is included in the reinforcement frame (38). With such an arrangement, even when heat generated when a component unit (such as a backlight unit in a liquid crystal display) is driven, e.g. driving heat of various elements included in the component unit, is transmitted to the outer package (37) of the component unit, the driving heat is further transmitted to the reinforcement frame (38) which is in contact with the outer package (37) and dissipated by means of the first heat dissipation fin. Consequently, the various elements in the component unit are not impaired by driving heat.
摘要翻译: 公开了一种固定在显示器(69)中的加热部件单元的外包装(37)上的加强框架(38),其中第一散热片包括在加强框架(38)中。 通过这样的布置,即使当驱动组件单元(诸如液晶显示器中的背光单元)时产生的热量,例如, 包括在部件单元中的各种元件的驱动热量传递到部件单元的外包装(37),驱动热量进一步传递到与外包装(37)接触的加强框架(38)和 通过第一散热片消散。 因此,组件单元中的各种元件不受驱动热的影响。
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公开(公告)号:US20110109655A1
公开(公告)日:2011-05-12
申请号:US12737406
申请日:2009-07-31
申请人: Daisuke Takeda
发明人: Daisuke Takeda
CPC分类号: G02F1/133603 , G02F1/133602 , G02F2001/133612 , G02F2001/133628 , G09G3/3426 , G09G2320/0233 , G09G2320/041
摘要: A backlight is provided that can prevent light emitting elements and other circuit components from undergoing degradation due to temperature elevation during backlight operation. A display device utilizing the backlight is also provided. In at least one example embodiment, the backlight is a backlight that is provided on the rear side of a display unit and projects illumination used for displaying images onto the display unit, the backlight including: multiple light emitting elements arranged in a single plane; a light source driving circuit having a light source control unit that defines the value of the drive power applied to each light emitting element and a light source driver unit that applies drive power corresponding to the value defined by the light source control unit to the light emitting elements; and temperature sensors that detect the ambient temperature of the regions where the light emitting elements that attain the highest temperatures during operation are disposed, wherein the light source control unit reduces the drive power applied to the light emitting elements that attain the highest temperatures during operation when the output values of the temperature sensors exceed a predetermined threshold value.
摘要翻译: 提供了可以防止发光元件和其他电路部件在背光操作期间由于温度升高而劣化的背光。 还提供了利用背光的显示装置。 在至少一个示例性实施例中,背光是设置在显示单元的后侧的背光源,并且将用于将图像显示在显示单元上的投射照明,所述背光包括:布置在单个平面中的多个发光元件; 光源驱动电路,其具有限定施加到每个发光元件的驱动功率的值的光源控制单元和将与由光源控制单元定义的值对应的驱动功率施加到发光元件的光源驱动器单元 元素 以及温度传感器,其检测在操作期间达到最高温度的发光元件的区域的环境温度,其中光源控制单元降低施加到在操作期间达到最高温度的发光元件的驱动功率, 温度传感器的输出值超过预定的阈值。
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公开(公告)号:US07675991B2
公开(公告)日:2010-03-09
申请号:US12543126
申请日:2009-08-18
IPC分类号: H04B7/02
CPC分类号: H04L25/0226 , H03G3/3052 , H04B7/04 , H04W52/52 , H04W84/12
摘要: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
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公开(公告)号:US20090304107A1
公开(公告)日:2009-12-10
申请号:US12543126
申请日:2009-08-18
CPC分类号: H04L25/0226 , H03G3/3052 , H04B7/04 , H04W52/52 , H04W84/12
摘要: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
摘要翻译: 一种用于经由多个天线在发射设备和无线接收设备之间的无线分组通信中使用的无线设备,方法和信号,其中信号发生器生成包括用于第一自动增益控制的短前同步码序列的无线分组 (AGC),第一长前导码序列,用于传送无线分组的长度的信号字段,用于在第一AGC之后执行的第二AGC的AGC前同步码序列,第二长前导序列和 数据字段传送数据。 AGC前同步码序列由多个天线并行发送。
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公开(公告)号:US07587002B2
公开(公告)日:2009-09-08
申请号:US12239435
申请日:2008-09-26
IPC分类号: H04L27/00
CPC分类号: H04L25/0226 , H03G3/3052 , H04B7/04 , H04W52/52 , H04W84/12
摘要: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
摘要翻译: 一种用于经由多个天线在发射设备和无线接收设备之间的无线分组通信中使用的无线设备,方法和信号,其中信号发生器生成包括用于第一自动增益控制的短前同步码序列的无线分组 (AGC),第一长前导码序列,用于传送无线分组的长度的信号字段,用于在第一AGC之后执行的第二AGC的AGC前同步码序列,第二长前导序列和 数据字段传送数据。 AGC前同步码序列由多个天线并行发送。
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公开(公告)号:US07583746B2
公开(公告)日:2009-09-01
申请号:US11018251
申请日:2004-12-22
IPC分类号: H04B7/02
CPC分类号: H04L25/0226 , H03G3/3052 , H04B7/04 , H04W52/52 , H04W84/12
摘要: A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
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公开(公告)号:US07405252B2
公开(公告)日:2008-07-29
申请号:US10581923
申请日:2004-10-28
IPC分类号: C08K3/32
摘要: A vinyl chloride resin composition comprising 100 parts by mass of a vinyl chloride resin and a co-ground mixture of (a) 0.001 to 10 parts by mass of at least one member selected from the group consisting of an organic phosphoric ester compound and a metal salt thereof and (b) 0.001 to 10 parts by mass of a grinding aid. The composition is excellent in transparency, heat stability, and heat discoloration resistance.
摘要翻译: 一种氯乙烯树脂组合物,其包含100质量份氯乙烯树脂和(a)0.001〜10质量份选自有机磷酸酯化合物和金属中的至少一种的共混混合物 盐和(b)0.001〜10质量份的研磨助剂。 该组合物的透明性,热稳定性和耐热变色性优异。
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公开(公告)号:US07319885B2
公开(公告)日:2008-01-15
申请号:US10392866
申请日:2003-03-21
CPC分类号: H04W8/245
摘要: A radio communication apparatus compatible with a plurality of communication systems and application services comprises a radio transmitting/receiving unit for transmitting and receiving a radio signal, signal processing circuit for executing part of digital signal processing which may be executed when a radio signal is transmitted or received, first processors connected to the signal processing circuit for at least executing communication control related to connection between the radio communication apparatus and the communication systems, and an application program related to the application services, and second processors connected to the signal processing circuit for at least executing another part of the digital signal processing, and control of the signal processing circuit, the amount of processing of the second processors being greater than the amount of processing of the first processors, the processing concerning the executing unit.
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