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公开(公告)号：US11800266B2
公开(公告)日：2023-10-24
申请号：US17332148
申请日：2021-05-27
发明人： Ioannis (Giannis) Patronas , Paraskevas Bakopoulos , Elad Mentovich , Barak Gafni , Adam V. Richards
CPC分类号： H04Q11/0071 , H04L45/04 , H04Q11/0005 , H04Q2011/009 , H04Q2011/0052 , H04Q2213/003 , H04Q2213/322
摘要： A device for a network switch comprises N input ports, and an electrical block including a plurality of electrical switches configured to route signals in an electrical domain. Each electrical switch includes M input ports, and the device further comprises an optical block coupled to the electrical block. The optical block is configured to route signals in an optical domain. A configuration of the optical block and a configuration of the electrical block are based on at least a number of the N input ports.
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公开(公告)号：US5450412A
公开(公告)日：1995-09-12
申请号：US799161
申请日：1991-11-27
申请人： Tomoyoshi Takebayashi , Toshihiro Azami , Ryuichi Matsukura , Hiroki Hasegawa , Satoshi Okuyama
发明人： Tomoyoshi Takebayashi , Toshihiro Azami , Ryuichi Matsukura , Hiroki Hasegawa , Satoshi Okuyama
CPC分类号： H04Q11/0471 , H04Q2213/093 , H04Q2213/103 , H04Q2213/13031 , H04Q2213/13034 , H04Q2213/1309 , H04Q2213/13093 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13174 , H04Q2213/13176 , H04Q2213/13199 , H04Q2213/13202 , H04Q2213/13209 , H04Q2213/13214 , H04Q2213/1327 , H04Q2213/13271 , H04Q2213/13292 , H04Q2213/13297 , H04Q2213/13299 , H04Q2213/1332 , H04Q2213/13322 , H04Q2213/1336 , H04Q2213/214 , H04Q2213/292 , H04Q2213/32 , H04Q2213/322 , H04Q2213/36
摘要： An ISDN interface unit interconnects a data processing unit, an ISDN, and an analog telephone and includes a DMA request signal generation circuit for generating a DMA request signal from an 8 kHz clock signal from an ISDN line. In accordance with the request signal, PCM coded data input from the ISDN line is transferred, using DMA, to a memory of the data processing unit or vice versa, or the ISDN interface unit includes a code conversion circuit, data stored in the data processing unit are converted to nonlinear PCM coded data and transmitted to the ISDN line or vice versa. Further, the ISDN interface unit includes communication functions for the digital signal and for the voice band signal, a control channel signal sent from the ISDN line is interpreted, and one of the communication functions can be selected.
摘要翻译： ISDN接口单元将数据处理单元，ISDN和模拟电话互连，并且包括用于从ISDN线路的8kHz时钟信号产生DMA请求信号的DMA请求信号生成电路。 根据请求信号，从ISDN线输入的PCM编码数据使用DMA传送到数据处理单元的存储器，反之亦然，或者ISDN接口单元包括代码转换电路，存储在数据处理中的数据 单元转换为非线性PCM编码数据并传输到ISDN线路，反之亦然。 此外，ISDN接口单元包括用于数字信号的通信功能，并且对于语音频带信号，解释从ISDN线路发送的控制信道信号，并且可以选择通信功能之一。
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公开(公告)号：US5563943A
公开(公告)日：1996-10-08
申请号：US426383
申请日：1995-04-21
申请人： Tomoyoshi Takebayashi , Toshihiro Azami , Ryuichi Matsukura , Hiroki Hasegawa , Satoshi Okuyama
发明人： Tomoyoshi Takebayashi , Toshihiro Azami , Ryuichi Matsukura , Hiroki Hasegawa , Satoshi Okuyama
CPC分类号： H04Q11/0471 , H04Q2213/093 , H04Q2213/103 , H04Q2213/13031 , H04Q2213/13034 , H04Q2213/1309 , H04Q2213/13093 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13174 , H04Q2213/13176 , H04Q2213/13199 , H04Q2213/13202 , H04Q2213/13209 , H04Q2213/13214 , H04Q2213/1327 , H04Q2213/13271 , H04Q2213/13292 , H04Q2213/13297 , H04Q2213/13299 , H04Q2213/1332 , H04Q2213/13322 , H04Q2213/1336 , H04Q2213/214 , H04Q2213/292 , H04Q2213/32 , H04Q2213/322 , H04Q2213/36
摘要： An ISDN interface unit interconnects a data processing unit, an ISDN, and an analog telephone and includes a ring sound controller for supplying a control signal to designate a generation of a ring of the analog telephone through a modular jack; a ring signal generator generating a ring sound; a switch selecting one of the ring sounds generated and supplying the ring sound to the analog telephone. Further, the ISDN interface unit comprises communication functions for the digital signal and for the voice band signal, a control channel signal sent from the ISDN line is interpreted, and one of the communication functions can be selected.
摘要翻译： ISDN接口单元互连数据处理单元，ISDN和模拟电话，并且包括环形声音控制器，用于通过模块化插孔提供控制信号以指定模拟电话环的生成; 产生环形声的环形信号发生器; 选择生成的环形声音之一并将振铃声提供给模拟电话。 此外，ISDN接口单元包括用于数字信号的通信功能，并且对于语音频带信号，解释从ISDN线路发送的控制信道信号，并且可以选择通信功能之一。
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公开(公告)号：US5638373A
公开(公告)日：1997-06-10
申请号：US402204
申请日：1995-03-10
申请人： Tomoyoshi Takebayashi , Toshihiro Azami , Ryuichi Matsukura , Hiroki Hasegawa , Satoshi Okuyama
发明人： Tomoyoshi Takebayashi , Toshihiro Azami , Ryuichi Matsukura , Hiroki Hasegawa , Satoshi Okuyama
CPC分类号： H04Q11/0471 , H04Q2213/093 , H04Q2213/103 , H04Q2213/13031 , H04Q2213/13034 , H04Q2213/1309 , H04Q2213/13093 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13174 , H04Q2213/13176 , H04Q2213/13199 , H04Q2213/13202 , H04Q2213/13209 , H04Q2213/13214 , H04Q2213/1327 , H04Q2213/13271 , H04Q2213/13292 , H04Q2213/13297 , H04Q2213/13299 , H04Q2213/1332 , H04Q2213/13322 , H04Q2213/1336 , H04Q2213/214 , H04Q2213/292 , H04Q2213/32 , H04Q2213/322 , H04Q2213/36
摘要： An ISDN interface unit interconnects a data processing unit, an ISDN, and an analog telephone and includes a DMA request signal generation circuit for generating a DMA request signal from an 8 kHz clock signal from an ISDN line. In accordance with the request signal, PCM coded data input from the ISDN line is transferred, using DMA, to a memory of the data processing unit or vice versa. Alternatively, the ISDN interface unit includes a code conversion circuit. Data stored in the data processing unit are converted to nonlinear PCM coded data and transmitted to the ISDN line or vice versa. Further, the ISDN interface unit includes communication functions for the digital signal and for the voice band signal, a control channel signal sent from the ISDN line is interpreted, and one of the communication functions can be selected.
摘要翻译： ISDN接口单元将数据处理单元，ISDN和模拟电话互连，并且包括用于从ISDN线路的8kHz时钟信号产生DMA请求信号的DMA请求信号生成电路。 根据请求信号，从ISDN线输入的PCM编码数据使用DMA传送到数据处理单元的存储器，反之亦然。 或者，ISDN接口单元包括代码转换电路。 存储在数据处理单元中的数据被转换成非线性PCM编码数据并被发送到ISDN线路，反之亦然。 此外，ISDN接口单元包括用于数字信号的通信功能，并且对于语音频带信号，解释从ISDN线路发送的控制信道信号，并且可以选择通信功能之一。
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公开(公告)号：US5199064A
公开(公告)日：1993-03-30
申请号：US589327
申请日：1990-12-03
CPC分类号： H04M9/08 , H04M1/253 , H04M1/6033 , H04Q11/0471 , H04Q2213/096 , H04Q2213/322
摘要： A single integrated circuit forms a hands-free telephone unit for use in a digital telephone network and in association with an external keypad, an external microprocessor, an external microphone, and an external speaker. The integrated circuit includes a keypad monitor arranged to provide digital key code signals, an audio processor for supporting hands-free operation, and a digital interface to provide a digital interface between the integrated circuit and the digital network and the external microprocessor.
摘要翻译： 单个集成电路形成用于数字电话网络并与外部键盘，外部微处理器，外部麦克风和外部扬声器相关联的免提电话单元。 集成电路包括布置成提供数字键码信号的键盘监视器，用于支持免提操作的音频处理器和用于在集成电路与数字网络和外部微处理器之间提供数字接口的数字接口。
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公开(公告)号：US4860285A
公开(公告)日：1989-08-22
申请号：US111475
申请日：1987-10-21
申请人： Merle L. Miller , Dale E. Gulick
发明人： Merle L. Miller , Dale E. Gulick
CPC分类号： H04J3/0688 , H04Q11/0442 , H04Q11/0471 , H04J3/0691 , H04Q2213/292 , H04Q2213/299 , H04Q2213/322 , H04Q2213/36 , H04Q2213/391
摘要： A synchronizer (100, 102, 104, 106) is disclosed operable in a variety of modes. In a Master/Slave mode the synchronizer receives synchronizing clock signals from a device to which it is a "slave" and generates therefrom synchronizing clock signals to a device to which it is a "master". In a Slave/Slave mode the synchronizer receives synchronizing clock signals from two devices to which it is a slave. In this mode the synchronizer can buffer misalignment between the clocks and report their phase difference for corrective action. In a Slave mode, the synchronizer only receives a synchronizing clock signal. A data-routing multiplexer (50, 108, 110) is employed in conjunction with the synchronizer which allows five devices to be connected to the synchronizer. Signals may be routed between any of the devices. Buffers (112, 120, 122) internal to the data-routing multiplexer perform the frame alignment function.
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