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    • 52. 发明授权
    • Pulse-width modulating device
    • 脉宽调制装置
    • US5686869A
    • 1997-11-11
    • US694116
    • 1996-08-08
    • Tetsuya NaruseTakehiro SugitaTomoya Yamaura
    • Tetsuya NaruseTakehiro SugitaTomoya Yamaura
    • H03K7/08H03M1/82H04B1/7087H04B14/02H04J13/00H04L25/49H03D3/00H04L27/22
    • H03M1/827H04B14/026H04L25/4902
    • A pulse-width modulating device comprises: a counter for generating a plurality of counter signals of n-bit, where n is an integer of 2 or more; a fundamental waveform generator for outputting a signal for the least significant bit of the count signal as the most significant bit of a fundamental waveform signal, obtaining a first product of inverted signals of all of the count signals for higher order bits than LSB, obtaining a second product of the first product and the count signal for a certain bit, carrying out this for every bit, and outputting n-bit fundamental waveform signals extending from the upper order bits to the lower order bits; and a pulse-width modulator for obtaining a product sum total for each bit of the n-bit data signal and each of the n-bit of fundamental waveform signals corresponding to the each bits of n-bit data and generating a pulse-width modulated signal, configured in such a manner that a pulse-width modulating signal having a pulse-width corresponding to the data signal and having a spectrum of a high frequency can be obtained.
    • 脉冲宽度调制装置包括:计数器,用于产生n位的多个计数器信号,其中n是2或更大的整数; 基本波形发生器,用于将用于计数信号的最低有效位的信号作为基波形信号的最高有效位输出,获得比LSB高的高位的所有计数信号的反相信号的第一乘积,得到 第一产品的第二乘积和某位的计数信号,对每一位进行这一操作,并输出从高阶位到低位的n位基波形信号; 以及脉冲宽度调制器,用于获得n比特数据信号的每个比特的乘积和总和与n比特数据的每个比特对应的n比特基波形信号,并产生脉冲宽度调制 信号,可以获得具有对应于该数据信号并具有高频谱的脉冲宽度的脉冲宽度调制信号。
    • 59. 发明授权
    • Radio-communication device and radio-communication method
    • 无线电通信设备和无线电通信方法
    • US08111608B2
    • 2012-02-07
    • US11914391
    • 2007-02-16
    • Hiroaki TakahashiRyo SawaiTomoya YamauraTakushi KunihiroHiroaki Takano
    • Hiroaki TakahashiRyo SawaiTomoya YamauraTakushi KunihiroHiroaki Takano
    • H04W52/00H04W80/00
    • H04L27/2613H04L1/0045H04L1/0061H04L1/0072H04L27/2647H04L27/38
    • A radio-communication device performs processing in a communication environment in which an OFDM (Orthogonal Frequency Division Multiplexing) modulation method is used. The radio-communication device includes a signal-reception unit that receives a MIMO (Multi Input Multi Output) signal, a data-decoding unit that decodes the MIMO signal, and a data-processing unit that processes data decoded by the data-decoding unit. The radio-communication device also includes a format-determination unit that determines, based on a relative phase difference between a previous packet field and a subsequent packet field adjacent to the previous packet field, a packet format of the MIMO signal. Further, the radio-communication device includes a control unit that stops an operation of the data-decoding unit when the data-processing unit does not support the packet format, which is determined by the format-determination unit. The operation is performed in a field that comes after a field at which the format-determination unit determines the packet format.
    • 无线通信装置在使用OFDM(正交频分复用)调制方式的通信环境中进行处理。 无线电通信装置包括:接收MIMO(多输入多输出)信号的信号接收单元,对MIMO信号进行解码的数据解码单元;以及处理由数据解码单元解码的数据的数据处理单元 。 无线电通信设备还包括格式确定单元,其基于先前分组字段和与先前分组字段相邻的后续分组字段之间的相对相位差来确定MIMO信号的分组格式。 此外,无线电通信装置包括控制单元,当数据处理单元不支持由格式确定单元确定的分组格式时,停止数据解码单元的操作。 该操作在格式确定单元确定分组格式的字段之后的字段中执行。
    • 60. 发明申请
    • RADIO COMMUNICATION DEVICE, RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, AND PROGRAM
    • 无线电通信设备,无线电通信系统,无线电通信方法和程序
    • US20110122835A1
    • 2011-05-26
    • US12907351
    • 2010-10-19
    • Masahiko NaitoKatsutoshi ItohHideyuki SuzukiErika SaitoTomoya YamauraNatsuki Itaya
    • Masahiko NaitoKatsutoshi ItohHideyuki SuzukiErika SaitoTomoya YamauraNatsuki Itaya
    • H04W40/00
    • H04W76/15H04W8/005H04W76/14H04W76/23
    • There is provided a radio communication device including a reception unit which receives information indicating a connection state or a communication capability of another radio communication device which the radio communication device attempts to connect to, and a selection unit which selects, depending on the information received by the reception unit, which communication is to be performed from among first communication in which a direct connection to such other radio communication device is established and direct communication with such other radio communication device is performed, second communication in which a connection to such other radio communication device via a base station is established and direct communication with such other radio communication device is performed, and third communication in which a connection to such other radio communication device via the base station is established and indirect communication with such other radio communication device via the base station is performed.
    • 提供了一种无线电通信装置,其包括:接收单元,其接收指示无线电通信设备尝试连接的另一无线电通信装置的连接状态或通信能力的信息;以及选择单元,其根据由 在与其他无线通信装置建立直接连接的第一通信和与其他无线通信装置的直接通信的第一通信中进行通信的接收部,进行与其他无线通信的连接的第二通信 通过基站建立设备,并且执行与这种其他无线电通信设备的直接通信,以及第三通信,其中经由基站与这种其他无线电通信设备的连接被建立,并且经由基站与这种其他无线电通信设备的间接通信 站执行。