公开(公告)号：US06714531B1

公开(公告)日：2004-03-30

申请号：US09160605

申请日：1998-09-25

申请人： Kenichi Oide ,  Satoru Abe

发明人： Kenichi Oide ,  Satoru Abe

IPC分类号： H04J324

CPC分类号： H04J3/1611 ,  H04J3/0623 ,  H04J2203/0035 ,  H04J2203/006

摘要： A method of preventing an error of a pointer process in an SDH radio device which receives an STM frame having a section overhead and a payload therein includes the steps of distributing a pointer to unused bytes or undefined bytes in the section overhead of the STM frame, the pointer indicating a start position of multiplex data in the payload of the STM frame, and transmitting the STM frame to the SDH radio device.

摘要翻译： 一种在接收具有扇区开销和有效载荷的STM帧的SDH无线电设备中防止指针进程错误的方法包括在STM帧的部分开销中分配指向未使用字节或未定义字节的指针的步骤， 该指针指示STM帧的有效载荷中的复用数据的开始位置，并将STM帧发送到SDH无线电设备。

公开(公告)号：US5687164A

公开(公告)日：1997-11-11

申请号：US492989

申请日：1995-06-21

申请人： Kohji Takahashi ,  Tadashi Nakamura ,  Kenichi Oide

发明人： Kohji Takahashi ,  Tadashi Nakamura ,  Kenichi Oide

IPC分类号： H04L27/00 ,  H03M13/23 ,  H03M13/41 ,  H04L25/08 ,  H04L27/38 ,  H04L1/00 ,  H03M13/00 ,  H04L27/34

CPC分类号： H03M13/6502 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/4107

摘要： A Viterbi decoder decodes a received signal having Ich and Qch components obtained by modulating a convolutional coded multi-valued QAM signal. The Viterbi decoder includes a first unit which inputs the received signal having the Ich and Qch components, a second unit which finds Euclidean distance between a predetermined signal point, which is one of a plurality of predetermined signal points allocated on a plane formed of Ich and Qch axes orthogonally crossed, and a signal point of the received signal, and a third unit which performs a Viterbi decoding based on the Euclidean distance obtained by the second unit.

摘要翻译： 维特比解码器对通过调制卷积编码多值QAM信号而获得的具有Ich和Qch分量的接收信号进行解码。 维特比解码器包括输入具有Ich和Qch分量的接收信号的第一单元，第二单元，其在预定信号点之间找到欧几里德距离，预定信号点是分配在由Ich形成的平面上的多个预定信号点中的一个， 正交交叉的Qch轴和接收信号的信号点，以及第三单元，其基于由第二单元获得的欧几里得距离执行维特比解码。

公开(公告)号：US5809406A

公开(公告)日：1998-09-15

申请号：US522021

申请日：1995-08-31

申请人： Yoshihiko Taki ,  Kenichi Oide

发明人： Yoshihiko Taki ,  Kenichi Oide

IPC分类号： H04B1/16 ,  H04B1/74 ,  H04B7/08

CPC分类号： H04B1/74 ,  H04B1/16

摘要： Herein disclosed are a radio receiving apparatus and a receiving system switching control method used in the radio receiving apparatus. The radio receiving apparatus has an active receiving system and a standby receiving system including respective equalizers, and a changeover switch for performing a switching between the active receiving system and the standby receiving system. The radio receiving apparatus further includes an alarm predicting information predicting means for detecting alarm predicting information in each of the equalizers and a switching control means for controlling a switching condition of the changeover switch on the basis of the alarm predicting information detected by the alarm predicting information detecting means, where the alarm predicting information as internal information of the equalizers is monitored to predict a malfunction of a receiving circuit to switch the circuit before the circuit is hit. It is therefore possible to reduce a hit rate of the circuit.

摘要翻译： 这里公开的是在无线接收装置中使用的无线接收装置和接收系统切换控制方法。 无线接收装置具有主动接收系统和包括各自的均衡器的备用接收系统，以及用于在主动接收系统和备用接收系统之间进行切换的切换开关。 无线电接收装置还包括用于检测每个均衡器中的报警预测信息的报警预测信息预测装置，以及用于根据由报警预测信息检测到的报警预测信息来控制转换开关的切换状态的切换控制装置 检测装置，其中监视报警预测信息作为均衡器的内部信息，以预测在电路被击中之前接收电路的故障以切换电路。 因此，可以降低电路的命中率。

公开(公告)号：US4672631A

公开(公告)日：1987-06-09

申请号：US754125

申请日：1985-07-12

申请人： Eiji Suzuki ,  Yoshihiro Nozue ,  Kenichi Oide

发明人： Eiji Suzuki ,  Yoshihiro Nozue ,  Kenichi Oide

IPC分类号： H04L7/00 ,  H04B7/005 ,  H04L27/01 ,  H04L27/06 ,  H04L27/38 ,  H03H7/30

CPC分类号： H04L27/066 ,  H04L27/01 ,  H04L27/38

摘要： A radio receiver gradually changes the phase of a regenerated clock when an abnormal receiving condition is detected. Since clock phase changes gradually, an equalizer which reduces receiving distortion and a discriminator are periodically synchronized. As a result, if receiving distortion is reduced at this time, the operation of the equalizer and discriminator are normalized and the normal receiving condition can be recovered quickly.

摘要翻译： 当检测到异常接收条件时，无线电接收机逐渐改变再生时钟的相位。 由于时钟相位逐渐变化，因此周期性地同步减少接收失真的均衡器和鉴频器。 结果，如果此时接收到失真减小，则均衡器和鉴频器的操作被归一化，并且可以快速恢复正常的接收条件。

公开(公告)号：US09536515B2

公开(公告)日：2017-01-03

申请号：US13556450

申请日：2012-07-24

申请人： Kenichi Oide

发明人： Kenichi Oide

IPC分类号： G10K11/178 ,  H04R1/10 ,  H04R3/00

CPC分类号： G10K11/178 ,  G10K11/17885 ,  G10K2210/1081 ,  G10K2210/3026 ,  H04R1/1083 ,  H04R3/005

摘要： There is provided a headphone device including a first housing and a second housing; a headband connected to the first and second housings; a first headphone unit and a second headphone unit disposed in the first and second housings, respectively; a first microphone and a second microphone arranged in the vicinity of the first and second headphone units; and a signal processing unit disposed in the first housing for processing input audio signals from the outside and microphone signals detected by the first and second microphones, and generating first and second noise-canceled audio signals to be supplied to the first and second headphone units.

摘要翻译： 提供了一种耳机装置，包括第一壳体和第二壳体; 连接到所述第一和第二壳体的头带; 分别设置在第一和第二壳体中的第一耳机单元和第二耳机单元; 布置在第一和第二耳机单元附近的第一麦克风和第二麦克风; 以及信号处理单元，设置在第一壳体中，用于处理来自外部的输入音频信号和由第一和第二麦克风检测的麦克风信号，以及产生要提供给第一和第二耳机单元的第一和第二噪声消除音频信号。

公开(公告)号：US20130039506A1

公开(公告)日：2013-02-14

申请号：US13556450

申请日：2012-07-24

申请人： Kenichi Oide

发明人： Kenichi Oide

IPC分类号： G10K11/16

CPC分类号： G10K11/178 ,  G10K11/17885 ,  G10K2210/1081 ,  G10K2210/3026 ,  H04R1/1083 ,  H04R3/005

摘要： There is provided a headphone device including a first housing and a second housing; a headband connected to the first and second housings; a first headphone unit and a second headphone unit disposed in the first and second housings, respectively; a first microphone and a second microphone arranged in the vicinity of the first and second headphone units; and a signal processing unit disposed in the first housing for processing input audio signals from the outside and microphone signals detected by the first and second microphones, and generating first and second noise-canceled audio signals to be supplied to the first and second headphone units.

摘要翻译： 提供了一种耳机装置，包括第一壳体和第二壳体; 连接到所述第一和第二壳体的头带; 分别设置在第一和第二壳体中的第一耳机单元和第二耳机单元; 布置在第一和第二耳机单元附近的第一麦克风和第二麦克风; 以及信号处理单元，设置在第一壳体中，用于处理来自外部的输入音频信号和由第一和第二麦克风检测的麦克风信号，以及产生要提供给第一和第二耳机单元的第一和第二噪声消除音频信号。