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    • 1. 发明授权
    • Apparatus and method for transmitting or receiving data
    • 用于发送或接收数据的装置和方法
    • US08023585B2
    • 2011-09-20
    • US10582615
    • 2004-12-22
    • Taichi Majima
    • Taichi Majima
    • H04L27/00
    • H04L1/0009H04L1/0014
    • A bit adding part acquires RSSI as measured by an RSSI measuring part, and adds “1” to each bit of protected audio data of an audio vocoder, if the acquired RSSI is smaller than a predetermined threshold value. If the acquired RSSI is equal to or greater than the predetermined threshold value, the bit adding part adds the bits of additional data to the respective bits of the protected data of the audio vocoder. A frame recovery part separates upper and lower order bits of deinterleaved data, and determines, based on CRC, whether eight data parts as obtained by combining the lower order bits as separated are valid. If so, the frame recovery part combines the eight data parts as the additional data to recovery additional information. In this way, additional data can be efficiently transmitted, while error correction being performed in accordance with communication environment.
    • 比特增加部分获取由RSSI测量部分测量的RSSI,并且如果所获取的RSSI小于预定阈值,则将“1”添加到音频声码器的受保护音频数据的每个比特。 如果获取的RSSI等于或大于预定阈值,则比特添加部分将附加数据的比特添加到音频声码器的受保护数据的各个比特。 帧恢复部分分离解交织数据的高位和低位,并且基于CRC确定通过组合分离的低阶位获得的八个数据部分是否有效。 如果是,则帧恢复部分将作为附加数据的八个数据部分组合到恢复附加信息。 以这种方式,可以有效地发送附加数据,同时根据通信环境进行纠错。
    • 2. 发明授权
    • Device and method for generating a base band signal and program causing computer to execute the method
    • 用于产生基带信号的装置和方法以及使计算机执行该方法的程序
    • US07823047B2
    • 2010-10-26
    • US10594984
    • 2005-03-30
    • Taichi Majima
    • Taichi Majima
    • H03M13/00
    • H04L1/0003H03M13/35H04L1/007H04L27/14
    • There is disclosed a base band signal generation device and others for processing transmission data so that a reception side can restored the data without recognizing whether the data has been subjected to a processing and transmitting the data with an appropriate efficiency corresponding to the communication quality. A transmission device T judges the communication quality of a transmission path L. When the communication quality is preferable, a four-value FSK symbol is generated from the bit of the most significant part of the encoded voice data and the bit of the least significant part. When the communication quality is not preferable, a four-value FSK symbol is generated from the bit of the most significant part of the encoded voice data and a redundant bit of “0”. However, a symbol containing a redundant bit is set to the maximum value or the minimum value of the four values which the symbol value may have. Moreover, each bit of the encoded voice data has a value “0” when indicating that no component corresponding to the bit is present.
    • 公开了一种用于处理发送数据的基带信号生成装置等,使得接收侧可以在不识别数据是否经过处理并且以与通信质量对应的适当效率来发送数据的情况下恢复数据。 发送装置T判断传输路径L的通信质量。当优选通信质量时,从编码语音数据的最重要部分的比特和最低有效部分的比特生成四值FSK符号 。 当通信质量不是优选时,从编码语音数据的最重要部分的位和冗余位“0”生成四值FSK符号。 然而,包含冗余位的符号被设置为符号值可能具有的四个值的最大值或最小值。 此外,当指示不存在与该位相对应的分量时,编码语音数据的每个比特都具有值“0”。
    • 3. 发明申请
    • SCRAMBLER, SCRAMBLE PROCESSING METHOD, AND PROGRAM
    • SCRAMBLER,SCRAMBLE PROCESSING METHOD,AND PROGRAM
    • US20090202066A1
    • 2009-08-13
    • US12420313
    • 2009-04-08
    • Taichi MAJIMA
    • Taichi MAJIMA
    • H04L9/28H04K1/04
    • H04K1/00H04L1/0003H04L1/0017H04L25/03866H04L27/0008H04L27/10H04L2001/0098
    • A multiplication value decision unit (12) decides a multiplication value which is a positive value or a negative value corresponding to a bit value of each bit contained in a binary bit string constituting a scramble pattern generated in a pattern generation unit (11). A multiplication processing unit (13) multiplies symbol data representing each symbol value in the symbol data string formed by the multinary symbol containing a predetermined pair of a positive value and a negative value having an identical absolute value, in the value area, by the multiplication value decided by the multiplication value decision unit (12). Here, the multiplication processing unit (13) successively executes the multiplication between the symbol data for one symbol and the multiplication value decided corresponding to the bit value of the one bit contained in the scramble pattern until the number of symbols expressed by the symbol data string is reached. The present invention scrambles the data string by a simple operation and performs scramble by a simple processing even when the function channel content is changed.
    • 乘法值决定单元(12)确定作为构成在图案生成单元(11)中生成的加扰模式的二进制位串中包含的每个位的位值的正值或负值的乘法值。 乘法处理单元(13)将表示每个符号数据的符号数据乘以由包含正值的正规值和具有相同绝对值的负值的多值符号形成的符号数据串中的每个符号数据在值区域中乘以乘法 值由乘法值决定单元(12)决定。 这里,乘法处理单元(13)依次执行一个符号的符号数据和与包含在加扰模式中的一位的位值相对应地确定的乘法值之间的乘法,直到由符号数据串表示的符号数 到达了。 本发明通过简单的操作对数据串进行加扰,即使当功能通道内容被改变时也通过简单的处理进行加扰。
    • 6. 发明授权
    • Communication method, transmitting method and apparatus, and receiving method and apparatus
    • 通信方法,发送方法和装置,以及接收方法和装置
    • US08213341B2
    • 2012-07-03
    • US10594456
    • 2005-03-30
    • Taichi Majima
    • Taichi Majima
    • H04L12/16
    • H04M11/064H04M2203/2044
    • In a mobile telephone terminal at the transmitting end, voice data to be transmitted are sequentially inputted, and it is determined whether the inputted voice data are silent. The voice data regarded as silent voice are replaced by group numbers, while the voice data indicative of sonant voice as well as the group numbers as replaced are transmitted by wireless. On the other hand, in a mobile telephone terminal at the receiving end, the signals transmitted by wireless are received, and the voice data and group numbers of the received signals are discriminated. The voice data are reproduced as they are, while the group numbers are reproduced as silent, and further processings based on the group numbers are executed. This allows predetermined data to be repetitively transmitted with a high efficiency without degrading communication quality very much. This also facilitates a follow-up participation in a group call.
    • 在发送端的移动电话终端中,顺序地输入要发送的语音数据,并且确定输入的语音数据是否静音。 视为静音的语音数据被组号代替,而表示声音的语音数据以及被替换的组号由无线发送。 另一方面,在接收端的移动电话终端中,接收通过无线发送的信号,并且识别接收到的信号的语音数据和组号。 语音数据原样再现,而组号被无声地再现,并且执行基于组号的进一步的处理。 这允许预先确定的数据以高效率重复发送,而不会非常降低通信质量。 这也有助于后续参与集团电话。
    • 7. 发明申请
    • Communication Method, Transmitting Method And Apparatus, And Receiving Method And Apparatus
    • 通信方法,发送方法和装置,以及接收方法和装置
    • US20070206624A1
    • 2007-09-06
    • US10594456
    • 2005-03-30
    • Taichi Majima
    • Taichi Majima
    • H04J3/17
    • H04M11/064H04M2203/2044
    • In a mobile telephone terminal at the transmitting end, voice data to be transmitted are sequentially inputted, and it is determined whether the inputted voice data are silent. The voice data regarded as silent voice are replaced by group numbers, while the voice data indicative of sonant voice as well as the group numbers as replaced are transmitted by wireless. On the other hand, in a mobile telephone terminal at the receiving end, the signals transmitted by wireless are received, and the voice data and group numbers of the received signals are discriminated. The voice data are reproduced as they are, while the group numbers are reproduced as silent, and further processings based on the group numbers are executed. This allows predetermined data to be repetitively transmitted with a high efficiency without degrading communication quality very much. This also facilitates a follow-up participation in a group call.
    • 在发送端的移动电话终端中,顺序地输入要发送的语音数据,并且确定输入的语音数据是否静音。 视为静音的语音数据被组号代替,而表示声音的语音数据以及被替换的组号由无线发送。 另一方面,在接收端的移动电话终端中,接收通过无线发送的信号,并且识别接收到的信号的语音数据和组号。 语音数据原样再现,而组号被无声地再现,并且执行基于组号的进一步的处理。 这允许预先确定的数据以高效率重复发送,而不会非常降低通信质量。 这也有助于后续参与集团电话。
    • 8. 发明授权
    • Mobile wireless communication apparatus, wireless communication apparatus and communication processing method
    • 移动无线通信装置,无线通信装置及通信处理方法
    • US08457102B2
    • 2013-06-04
    • US12420322
    • 2009-04-08
    • Taichi Majima
    • Taichi Majima
    • H04J3/06
    • H04L7/10H04B7/2681H04J3/0605H04W56/0085
    • Both a pre-word (PW) and a sync word (SW) are used to establish a synchronization or only the sync word (SW) is used to establish a synchronization in accordance with an operational status related to the synchronization in a mobile wireless communication apparatus. For example, during an initial synchronization with a control channel (110) being received, both the pre-word (PW) and the sync word (SW) are used to establish a synchronization when a calculation result in a synchronization calculating part exceeds a predetermined threshold value only once. During an initial synchronization with a direct communication channel (112) being received, both the pre-word (PW) and the sync word (SW) are used to establish a synchronization when the calculation result exceeds the predetermined threshold value once; or alternatively, only the sync word (SW) is used to establish a synchronization when the calculation result successively exceeds the predetermined threshold value twice. According to the present invention, the sync word is shortened so as to quickly establish a communication link, and the sync detection can be performed with high precision.
    • 前置字(PW)和同步字(SW)都用于建立同步,或者仅使用同步字(SW)来根据与移动无线通信中的同步相关的操作状态来建立同步 仪器。 例如,在与正在接收的控制信道(110)的初始同步期间,当同步计算部分的计算结果超过预定的时间时,前置字(PW)和同步字(SW)都用于建立同步 阈值只有一次。 在与正在接收的直接通信信道(112)的初始同步期间,当计算结果超过预定阈值一次时,预字(PW)和同步字(SW)都用于建立同步; 或者可选地,当计算结果连续超过预定阈值两次时,仅使用同步字(SW)建立同步。 根据本发明,同步字被缩短以便快速建立通信链路,并且可以高精度地执行同步检测。
    • 10. 发明授权
    • Soft decision device and soft decision method
    • 软决策设备和软判决方法
    • US08335972B2
    • 2012-12-18
    • US12600718
    • 2008-05-20
    • Taichi Majima
    • Taichi Majima
    • H03M13/00
    • H04L27/22H04L25/067H04L27/38
    • A soft decision device and method for obtaining a soft decision value as a value expressing a probability as near the actual probability as possible by simple processing. The soft decision device and method are used to output a soft decision value for each bit of each symbol used for decoding the each symbol as a value corresponding to the function value obtained by applying a predetermined function for each bit to the sampled value of the each symbol according to the demodulated signal such that the probability distribution of the sampled value in each symbol point is the Gauss distribution. The function for each bit is approximated to a curve expressing the probability that each bit is 1 or 0 for the sampled value of each symbol of the demodulated signal and defined by using a quadratic function.
    • 一种软判决装置和方法,用于通过简单处理来获得软判决值作为表示尽可能接近实际概率的概率的值。 软判决装置和方法用于输出用于解码每个符号的每个符号的每个比特的软判决值,作为与通过对每个比特应用预定函数而获得的函数值相对应的值, 符号,使得每个符号点中的采样值的概率分布是高斯分布。 每个位的功能近似于表示对于解调信号的每个符号的采样值并且通过使用二次函数定义的每个位为1或0的概率的曲线。