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1. 发明授权

US5701299A Method of and apparatus for switching multi-slot time division signals 失效
标题翻译：用于切换多时隙时分信号的方法和装置
公开(公告)号：US5701299A
公开(公告)日：1997-12-23
申请号：US588315
申请日：1996-01-18
申请人： Akira Umezu
发明人： Akira Umezu
IPC分类号： H04Q3/52 , H04Q11/04 , H04Q11/08
CPC分类号： H04Q11/08
摘要： To reduce memory space of a speech path memory in a switching circuit for a multi-slot time division signal, only data in effective time slots of an input signal are stored one after another in a speech path memory to be switched into different time slot of an output signal in the present invention. Recording relations between time slot number of the input signal where data to be switched are carried and an address of the speech path memory where the data are stored, a conversion table converts switching control data indicating each time slot number of the input signal of data to be switched into each time slots of the output signal to address data of the speech path memory where the data to be switched are stored, and generates an idle bit pattern inserting signal when the data to be switched are not stored. So, memory space for storing idle channel patterns can be reduced of the speech path memory, enabling economizing total memory space more than a half of memory space needed for conventional switching circuits.
摘要翻译：为了减少用于多时隙时分信号的切换电路中的语音路径存储器的存储空间，只有输入信号的有效时隙中的数据被一个接一个地存储在语音路径存储器中才能被切换到不同的时隙本发明的输出信号。记录要被切换的数据的输入信号的时隙号与存储数据的语音路径存储器的地址之间的记录关系，转换表将指示数据的输入信号的每个时隙号的切换控制数据转换为切换到输出信号的每个时隙以存储要切换的数据的语音路径存储器的数据，并且当不存储要切换的数据时产生空闲位模式插入信号。因此，用于存储空闲信道模式的存储器空间可以减少语音路径存储器，使得可以节省传统开关电路所需的存储空间的一半以上的总存储空间。

2. 发明授权

US5467340A Time division switch 失效
标题翻译：时分开关
公开(公告)号：US5467340A
公开(公告)日：1995-11-14
申请号：US180913
申请日：1994-01-12
申请人： Akira Umezu
发明人： Akira Umezu
IPC分类号： H04Q3/52 , H04Q11/04 , H04Q11/08 , H04L12/26
CPC分类号： H04M3/303 , H04Q11/08
摘要： A time division switch for digital exchange systems that includes speech data storage device to store digitally coded speech data transmitted on the data highway, control data storage device to store control data for control of input/output of speech data at the speech data storage device, address generation device to generate sequential addresses to read/write data for said speech data storage device and said control data storage device, write device to write data to said speech data storage device according to the sequential addresses generated by said address generation device, read device to read data from said speech data storage device according to the control data stored in said control data storage device and test execution device to switch between normal mode for processing of said speech data and test mode to check for any failure in said speech data storage device and said control data storage device.
摘要翻译：一种用于数字交换系统的时分交换机，包括用于存储在数据高速公路上发送的数字编码语音数据的语音数据存储装置，控制数据存储装置，用于存储用于在语音数据存储装置处控制语音数据的输入/输出的控制数据，地址产生装置，用于产生用于所述语音数据存储装置和所述控制数据存储装置的读/写数据的顺序地址，写装置，以根据由所述地址产生装置生成的顺序地址将数据写入所述语音数据存储装置，读装置根据存储在所述控制数据存储装置中的控制数据和测试执行装置从所述语音数据存储装置读取数据，以便在用于处理所述语音数据的正常模式和测试模式之间切换以检查所述语音数据存储装置中的任何故障和所述控制数据存储装置。

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