公开(公告)号：US07761866B2

公开(公告)日：2010-07-20

申请号：US10545869

申请日：2004-02-16

申请人： Katsuaki Abe ,  Takenori Sakamoto

发明人： Katsuaki Abe ,  Takenori Sakamoto

IPC分类号： G06F9/445 ,  G06F9/44

CPC分类号： H04W8/245 ,  G06F8/65 ,  H04B1/0003 ,  H04W8/22

摘要： A radio communication apparatus to be changed in function by software, when downloading software from a download server, first downloads software limited in operation and then configures a software radio section. After the configuration and the operation confirmation have been normally completed, execution-allowing key information is requested and received. Using it, reconfiguration is carried out in part thereby enabling all the operations. Accordingly, it is possible to safely carry out a download and a setting update of software to the radio communication apparatus.

摘要翻译： 通过软件功能改变的无线电通信装置当从下载服务器下载软件时，首先下载在操作中限制的软件，然后配置软件无线电部分。 在配置和操作确认已经正常完成之后，请求和接收执行允许密钥信息。 使用它，部分地执行重新配置，从而实现所有操作。 因此，可以安全地向无线通信装置执行软件的下载和设置更新。

公开(公告)号：US07738590B2

公开(公告)日：2010-06-15

申请号：US11336956

申请日：2006-01-23

申请人： Yutaka Murakami ,  Shinichiro Takabayashi ,  Katsuaki Abe ,  Masayuki Orihashi ,  Akihiko Matsuoka

发明人： Yutaka Murakami ,  Shinichiro Takabayashi ,  Katsuaki Abe ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC分类号： H04L25/49 ,  H04L27/36 ,  H04L27/20

CPC分类号： H04L27/3405 ,  H03F1/02 ,  H03F3/24 ,  H04B1/0475 ,  H04B2001/0416 ,  H04B2001/045 ,  H04L1/0003 ,  H04L27/2082 ,  H04L27/2601 ,  H04L27/34 ,  H04L27/3494 ,  H04L2203/00

摘要： A radio communication apparatus capable of switching modulation schemes includes a QPSK modulation signal generator configured to modulate transmission data by a QPSK modulation scheme and to output a QPSK modulation signal. A 64QAM modulation signal generator is configured to modulate transmission data by a 64QAM scheme and to output a 64QAM modulation signal. A radio processor is configured to receive, as an input, the QPSK modulation signal or the 64 QAM modulation signal and to output a transmission signal. A transmission power amplifier is configured to amplify a power of the transmission signal. The QPSK modulation signal generator and the 64QAM modulation signal generator perform gain control so as to make an average transmission power of the 64QAM modulation signal smaller than an average transmission power of the QPSK modulation signal.

摘要翻译： 能够切换调制方式的无线通信装置包括：QPSK调制信号发生器，被配置为通过QPSK调制方式调制发送数据并输出QPSK调制信号。 64QAM调制信号发生器被配置为通过64QAM方式调制发送数据并输出64QAM调制信号。 无线电处理器被配置为接收QPSK调制信号或64QAM调制信号作为输入，并输出发送信号。 发送功率放大器被配置为放大发送信号的功率。 QPSK调制信号发生器和64QAM调制信号发生器执行增益控制，使得64QAM调制信号的平均发送功率小于QPSK调制信号的平均发送功率。

公开(公告)号：US20090116594A1

公开(公告)日：2009-05-07

申请号：US12094993

申请日：2006-11-21

申请人： Katsuaki Abe ,  Akihiko Matsuoka ,  Kentaro Miyano

发明人： Katsuaki Abe ,  Akihiko Matsuoka ,  Kentaro Miyano

IPC分类号： H04B1/10

CPC分类号： H04B1/28 ,  H04B1/0007

摘要： A radio receiver including a reception processing system that uses a discrete-time frequency conversion to acquire a signal having a sampling rate corresponding to a local frequency, wherein the reception characteristic is improved when the reception processing system is applied to a system having a wide reception channel band. The radio receiver (100) comprises a discrete-time frequency converting part (130) that uses a local frequency signal to sample a received signal in a discrete-time manner, thereby performing a frequency conversion and a thinning process to output a discrete-time analog signal of a sampling rate in accordance with the local frequency; an A/D converting part (150) that quantizes the discrete-time analog signal to a digital value to output a received digital signal; a channel selection filtering part (161) that uses a tap coefficient value to perform a digital filtering process of the received digital signal; and a frequency response characteristic correcting part (162) that generates the tap coefficient in accordance with the sampling rate.

摘要翻译： 一种无线电接收机，包括使用离散时间频率转换来获取具有与本地频率对应的采样率的信号的接收处理系统，其中当接收处理系统应用于具有广泛接收的系统时，接收特性得到改善 通道带。 无线电接收机（100）包括离散时间频率转换部分（130），其使用本地频率信号以离散时间方式对接收到的信号进行采样，从而执行频率转换和稀疏处理以输出离散时间 模拟信号采样率按照本地频率; A / D转换部分，其将离散时间模拟信号量化为数字值以输出接收到的数字信号; 使用抽头系数值对所接收的数字信号进行数字滤波处理的频道选择滤波部分（161）; 以及根据采样率生成抽头系数的频率响应特性校正部分（162）。

公开(公告)号：US20090104880A1

公开(公告)日：2009-04-23

申请号：US12066064

申请日：2006-08-29

申请人： Katsuaki Abe ,  Akihiko Matsuoka ,  Kentaro Miyano ,  Takenori Sakamoto ,  Tomoya Urushihara

发明人： Katsuaki Abe ,  Akihiko Matsuoka ,  Kentaro Miyano ,  Takenori Sakamoto ,  Tomoya Urushihara

IPC分类号： H04B1/38

CPC分类号： H04W8/22 ,  H04B2201/7071

摘要： A wireless communication apparatus and a communication control method wherein even if there occurs a change in communication control information due to a function change, an appropriate correction is implemented to improve the communication quality. A wireless communication apparatus (100) comprises a plurality of reconfigurable function parts (reconfigurable function modules (1031)) that reconfigure functions related to communication to perform digital signal processings according to a plurality of communication formats; and a communication operation control function part that controls the communication operation. Each of the reconfigurable function parts includes a property register (10311) in which the communication control information is written. The communication operation control function part includes a reconfiguration control section (107) that overwrites the communication control information in the property register each time the communication function is reconfigured; and a communication control section (104) that performs a communication control based on the communication control information held in the property register.

摘要翻译： 一种无线通信装置和通信控制方法，其中即使由于功能改变而导致通信控制信息发生变化，也实施适当的校正以提高通信质量。 无线通信装置（100）包括重新配置与通信有关的功能的多个可重新配置功能部件（可重构功能模块（1031）），以根据多种通信格式执行数字信号处理; 以及控制通信操作的通信操作控制功能部。 每个可重构功能部件包括写入通信控制信息的属性寄存器（10311）。 通信操作控制功能部包括重新配置控制部（107），每当重新配置通信功能时，覆盖属性寄存器中的通信控制信息; 以及基于所述属性寄存器中保存的通信控制信息进行通信控制的通信控制部（104）。

公开(公告)号：US20090103516A1

公开(公告)日：2009-04-23

申请号：US11995841

申请日：2006-07-19

申请人： Kentaro Miyano ,  Katsuaki Abe ,  Akihiko Matsuoka

发明人： Kentaro Miyano ,  Katsuaki Abe ,  Akihiko Matsuoka

IPC分类号： H04J3/06 ,  H04L7/00

CPC分类号： H04B1/406 ,  H04B1/7075 ,  H04L7/00 ,  H04L7/042 ,  H04W56/0085 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/40

摘要： Multimode wireless communication apparatus supports plural wireless communication methods and includes synchronization detecting part. Digital signals output from first A/D part and second A/D part are combined by synchronization detecting part. Synchronization detecting part converts sampling frequencies of respective digital signals and performs other processes when combining digital signals. Synchronization detecting part detects synchronization timing for plural wireless communication methods by plurally performing correlation operation corresponding to respective wireless communication methods for digital signals combined, thereby providing a multimode wireless communication apparatus with its size and power consumption reduced.

摘要翻译： 多模无线通信装置支持多种无线通信方式，包括同步检测部。 从第一A / D部分和第二A / D部分输出的数字信号由同步检测部分组合。 同步检测部分转换各数字信号的采样频率，并在组合数字信号时进行其它处理。 同步检测部分通过对与组合的数字信号的各种无线通信方法相对应的多个执行相关操作来检测多个无线通信方法的同步定时，从而提供其尺寸和功耗降低的多模无线通信设备。

公开(公告)号：US20090051422A1

公开(公告)日：2009-02-26

申请号：US12295939

申请日：2007-04-06

申请人： Akihiko Matsuoka ,  Kentaro Miyano ,  Katsuaki Abe

发明人： Akihiko Matsuoka ,  Kentaro Miyano ,  Katsuaki Abe

IPC分类号： H03K5/00

CPC分类号： H03H19/004 ,  H03H15/00

摘要： Provided is a switched capacitor type filter device having a steep characteristic with a small number of taps. The filter device includes positive polarity selecting switches (1311 to 1354), negative polarity selecting switches (1411 to 1454), positive read-out switches (1711 to 1754), negative polarity read-out switches (1811 to 1854), and a timing control unit (5). Thus, it is possible to read out a negative charge by controlling the polarity upon write-in and the polarity upon read-out to be identical or different. Accordingly, it is possible to set a negative coefficient as a filter weighting coefficient. This can realize an FIR filter having a steep characteristic.

摘要翻译： 本发明提供一种开关电容式滤波装置，其特征在于具有少量抽头。 滤波器装置包括正极性选择开关（1311至1354），负极性选择开关（1411至1454），正读出开关（1711至1754），负极性读出开关（1811至1854）和定时 控制单元（5）。 因此，通过控制写入时的极性和读出时的极性相同或不同，可以读出负电荷。 因此，可以设定负系数作为滤波器加权系数。 这可以实现具有陡峭特性的FIR滤波器。

公开(公告)号：US07328389B2

公开(公告)日：2008-02-05

申请号：US11413155

申请日：2006-04-28

申请人： Yutaka Murakami ,  Katsuaki Abe ,  Masayuki Orihashi ,  Akihiko Matsuoka

发明人： Yutaka Murakami ,  Katsuaki Abe ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC分类号： G06F11/00 ,  G08C25/00

CPC分类号： H04L1/0041 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0039 ,  H04L1/0058 ,  H04L1/0079 ,  H04L1/0083 ,  H04L1/08 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/20 ,  H04L27/2608 ,  Y02D50/10

摘要： A transmitting apparatus controls, for each transmit frame, at least one of a modulation method and an error correction method. The transmitting apparatus forms an information symbol and transmits the information symbol using multiple subcarriers. A modulation method information signal generator generates an information signal relating to a modulation method of the information symbol. An error correction method information signal generator generates an information signal relating to an error correction method of the information symbol. A frame former forms a transmit frame by repeating and discretely arranging at least one of the same modulation method information signal and the same error correction method information signal at the same time within the same frame, and a transmitter transmits the transmit frame.

摘要翻译： 发送装置对于每个发送帧控制调制方法和纠错方法中的至少一个。 发送装置形成信息符号并使用多个子载波发送信息符号。 调制方式信息信号发生器产生与信息符号的调制方法相关的信息信号。 纠错方法信息信号发生器产生与信息符号的纠错方法相关的信息信号。 帧前体通过在同一帧内同时重复和离散地布置相同的调制方式信息信号和相同的纠错方法信息信号中的至少一个来形成发送帧，并且发送器发送发送帧。

公开(公告)号：US07123659B2

公开(公告)日：2006-10-17

申请号：US09813856

申请日：2001-03-22

申请人： Masayuki Orihashi ,  Katsuaki Abe ,  Job Cleopa Msuya ,  Shinichiro Takabayashi

发明人： Masayuki Orihashi ,  Katsuaki Abe ,  Job Cleopa Msuya ,  Shinichiro Takabayashi

IPC分类号： H04B14/04

CPC分类号： H03D3/006 ,  H04L27/2647

摘要： A digital reception apparatus includes a receiver that processes a received signal and a distortion corrector that corrects a non-linear distortion of the processed received signal, introduced by the receiver. The receiver may include an amplifier, a quadrature demodulator and/or a quantizer. The distortion corrector includes a distortion estimator that estimates the distortion and outputs a correcting signal based on an inverse distortion characteristic of the receiver, and a distortion compensator that multiplies the received signal and the correcting signal to remove the non-linear distortion from the received signal, to obtain a corrected received signal. The corrected signal is output to a demodulator, which performs demodulation processing on the corrected signal, and thereby obtains a demodulated signal.

摘要翻译： 数字接收装置包括处理接收信号的接收机和校正由接收机引入的经处理的接收信号的非线性失真的失真校正器。 接收机可以包括放大器，正交解调器和/或量化器。 失真校正器包括估计失真的失真估计器，并且基于接收机的逆失真特性输出校正信号;以及失真补偿器，其将接收信号和校正信号相乘以从接收信号中去除非线性失真 ，以获得校正的接收信号。 校正后的信号被输出到对校正信号进行解调处理的解调器，从而得到解调信号。

公开(公告)号：US06999440B2

公开(公告)日：2006-02-14

申请号：US10267990

申请日：2002-10-10

申请人： Katsuaki Abe ,  Makoto Hasegawa ,  Kenichi Takahashi

发明人： Katsuaki Abe ,  Makoto Hasegawa ,  Kenichi Takahashi

IPC分类号： H04B7/216 ,  H04J3/06

CPC分类号： H04W56/0045 ,  H04B7/2681 ,  H04J3/0682

摘要： A TDMA radio terminal comprises a transmitter portion and a receiver portion. A reference signal is launched in the transmitter portion while tuning the receiver portion. At the same time, an internal delay counter is started. The counter counts clock pulses till the reference signal returns through the receiver portion. Letting this pulse count be Nd, a transmission wait time is Nt−Nd. Nt is a transmit timing at the antenna. The Nd counting operation may be triggered by a power on or a signal from a controller. Method for determining the transmission wait time in the production site is also disclosed.

公开(公告)号：US20050185722A1

公开(公告)日：2005-08-25

申请号：US10517178

申请日：2003-12-02

申请人： Katsuaki Abe ,  Takenori Sakamoto

发明人： Katsuaki Abe ,  Takenori Sakamoto

IPC分类号： H04L27/20 ,  H04L27/00 ,  H04L27/22 ,  H04L27/34 ,  H04L27/36 ,  H04L27/38

CPC分类号： H04L1/0003 ,  H04L1/0078 ,  H04L27/0008 ,  H04L27/34

摘要： When data is transmitted on a burst basis, a symbol having a higher modulation level is inserted into parts of a burst on a symbol basis and this burst is transmitted. When the data including this burst is received on a burst basis, it is determined which symbol positions are inserted by the symbols having the higher modulation level and which symbol positions are inserted by the other symbols. This method allows increasing a communication capacity while retaining the reliability of the communication.

摘要翻译： 当以突发为基础发送数据时，将具有较高调制级别的符号以符号为基础插入到突发的部分中，并且发送该突发。 当以突发为基础接收到包含这个突发的数据时，确定哪些符号位置被具有较高调制级别的符号插入，哪些符号位置被其他符号插入。 该方法允许增加通信容量，同时保持通信的可靠性。