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公开(公告)号：US6069878A
公开(公告)日：2000-05-30
申请号：US769965
申请日：1996-12-19
摘要： A time division multiplexing ("TDM") digital matrix intercom system for connecting intercom stations. The system includes a digital switching system receiving audio input communications signals from at least some of the intercom stations, and sending audio input communications signals to at least some of the intercom stations. The digital switching system includes a TDM system for broadcasting on a TDM bus multiple digital communications signals including such digital audio input signals. The TDM system includes one or more interfaces connecting intercom stations with the TDM bus. The system also includes a signal mixer which is capable of receiving from the TDM bus selected ones of the digital audio input signals, and creating and broadcasting on the TDM bus a custom mixed digital audio output communications signal which is a loudness weighted mix of such selected digital audio input signals which at least one of such selected signals optionally being given a larger weight corresponding to a louder volume than others of the selected signals. A custom mixed digital audio output signal thus may be routed to a selected one of the intercom stations as an audio output communications signal. Preferably the system includes an integrated circuit for producing custom output mix signals.
摘要翻译： 用于连接对讲电台的时分复用（“TDM”）数字矩阵对讲系统。 该系统包括数字交换系统，其接收来自至少一些对讲站的音频输入通信信号，以及向至少一些对讲电台发送音频输入通信信号。 数字交换系统包括用于在TDM总线上广播包括这种数字音频输入信号的多个数字通信信号的TDM系统。 TDM系统包括将对讲站与TDM总线相连接的一个或多个接口。 该系统还包括信号混合器，其能够从TDM总线接收所选择的数字音频输入信号，以及在TDM总线上创建和广播一个定制的混合数字音频输出通信信号，其是这种选择的响度加权混合 数字音频输入信号，其中所选择的信号中的至少一个可选地被给予对应于比所选择的信号中的其他信号更大的音量的较大的权重。 因此，定制的混合数字音频输出信号可以作为音频输出通信信号被路由到所选择的一个对讲电台。 优选地，该系统包括用于产生定制输出混合信号的集成电路。
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2.发明授权
公开(公告)号：US5883804A
公开(公告)日：1999-03-16
申请号：US687804
申请日：1996-07-19
CPC分类号： H04H60/04
摘要： A system for recording, editing, processing and playing digital audio in a real-time, non-linear, non-destructive fashion. The system comprises a collection of the following modules: a disk controller for reading and writing disk-based media: an I/O processor for moving data between the disk controllers, I/O devices and connection bus, a DSP processor for processing data that exists on the connection bus, and a sample playback processor for performing memory-based polyphonic digital playback attached to the connection bus. The system's modules are connected via a connection bus that allows the transfer of multiple channels of information simultaneously in synchronism with the system's variable sample clock.
摘要翻译： 用于以实时，非线性，非破坏性方式记录，编辑，处理和播放数字音频的系统。 该系统包括以下模块的集合：用于读取和写入基于磁盘的媒体的磁盘控制器：用于在磁盘控制器，I / O设备和连接总线之间移动数据的I / O处理器，用于处理数据的数据的DSP处理器 存在于连接总线上，以及用于执行附加到连接总线的基于存储器的复音数字回放的样本重放处理器。 系统的模块通过连接总线连接，允许与系统的可变采样时钟同步同时传输多个信道。
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公开(公告)号：US20090282962A1
公开(公告)日：2009-11-19
申请号：US12119601
申请日：2008-05-13
IPC分类号： G10F1/02
CPC分类号： G10H1/344 , G10H2220/305
摘要： A piano includes a plurality of keys having forward and rearward ends and an emitter and a detector both disposed adjacent the rearward end of each key. The emitter emits a signal directed toward a surface of the rearward end of the key. The detector receives a signal reflected from the surface of the rearward end of the key. A controller is in communication with the emitter and the detector and processes detection signals received from the detector to determine key movement.
摘要翻译： 钢琴包括具有前端和后端的多个键和发射器和检测器，两者都邻近每个键的后端设置。 发射器发射指向键的后端的表面的信号。 检测器接收从键的后端的表面反射的信号。 控制器与发射器和检测器通信，并且处理从检测器接收的检测信号以确定键移动。
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公开(公告)号：US5483528A
公开(公告)日：1996-01-09
申请号：US321428
申请日：1994-10-11
摘要： A time division multiplexing ("TDM") digital matrix intercom system for connecting intercom stations. The system includes a digital switching system receiving audio input communications signals from at least some of the intercom stations, and sending audio input communications signals to at least some of the intercom stations. The digital switching system includes a TDM system for broadcasting on a TDM bus multiple digital communications signals including such digital audio input signals. The TDM system includes one or more interfaces connecting intercom stations with the TDM bus. The system also includes a signal mixer which is capable of receiving from the TDM bus selected ones of the digital audio input signals, and creating and broadcasting on the TDM bus a custom mixed digital audio output communications signal which is a loudness weighted mix of such selected digital audio input signals with at least one of such selected signals optionally being given a larger weight corresponding to a louder volume than others of the selected signals. A custom mixed digital audio output signal thus may be routed to a selected one of the intercom stations as an audio output communications signal. Preferably the system includes an integrated circuit for producing custom output mix signals.
摘要翻译： 用于连接对讲电台的时分复用（“TDM”）数字矩阵对讲系统。 该系统包括数字交换系统，其接收来自至少一些对讲站的音频输入通信信号，以及向至少一些对讲电台发送音频输入通信信号。 数字交换系统包括用于在TDM总线上广播包括这种数字音频输入信号的多个数字通信信号的TDM系统。 TDM系统包括将对讲站与TDM总线相连接的一个或多个接口。 该系统还包括信号混合器，其能够从TDM总线接收所选择的数字音频输入信号，以及在TDM总线上创建和广播一个定制的混合数字音频输出通信信号，其是这种选择的响度加权混合 数字音频输入信号具有这样的选择信号中的至少一个，可选地给予对应于比所选择的信号中的其他信号更大的音量的更大的权重。 因此，定制的混合数字音频输出信号可以作为音频输出通信信号被路由到所选择的一个对讲电台。 优选地，该系统包括用于产生定制输出混合信号的集成电路。
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公开(公告)号：US06212197B1
公开(公告)日：2001-04-03
申请号：US08556442
申请日：1995-11-09
IPC分类号： H04L1266
CPC分类号： H04M3/561
摘要： An apparatus and method for transferring data among clients of a time division multiplexed network is provided. In one aspect of the preset invention the apparatus includes clock circuits that allow for a variable number of time slots and a variable bus cycle of the network. In another aspect of the present invention a network interface module includes an indirection register that contains relationships between memory storage locations and channels of a time domain multiplexed network. In yet another aspect of the present invention, a network interface module is provided that comprises a memory, and first and second registers. In one mode of operation of the network interface module, data from the memory for a client is pre-fetched from the memory, prior to the start of a bus cycle and is stored in the registers to minimize memory access delays in the system.
摘要翻译： 提供了一种用于在时分复用网络的客户端之间传送数据的装置和方法。 在本发明的一个方面中，该装置包括允许可变数量的时隙和网络的可变总线周期的时钟电路。 在本发明的另一方面，网络接口模块包括间接寄存器，该间接寄存器包含时域复用网络的存储器存储位置和信道之间的关系。 在本发明的另一方面，提供一种网络接口模块，其包括存储器以及第一和第二寄存器。 在网络接口模块的一种操作模式中，在总线周期开始之前，从存储器中取出来自客户机的存储器的数据，并将其存储在寄存器中以最小化系统中的存储器访问延迟。
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公开(公告)号：US6072796A
公开(公告)日：2000-06-06
申请号：US490461
申请日：1995-06-14
CPC分类号： H04M3/561
摘要： An apparatus and method for transferring data among clients of a time division multiplexed network is provided. In one aspect of the preset invention the apparatus includes clock circuits that allow for a variable number of time slots and a variable bus cycle of the network. In another aspect of the present invention a network interface module includes an indirection register that contains relationships between memory storage locations and channels of a time domain multiplexed network. In yet another aspect of the present invention, a network interface module is provided that comprises a memory, and first and second registers. In one mode of operation of the network interface module, data from the memory for a client is pre-fetched from the memory, prior to the start of a bus cycle and is stored in the registers to minimize memory access delays in the system.
摘要翻译： 提供了一种用于在时分复用网络的客户端之间传送数据的装置和方法。 在本发明的一个方面中，该装置包括允许可变数量的时隙和网络的可变总线周期的时钟电路。 在本发明的另一方面，网络接口模块包括间接寄存器，该间接寄存器包含时域复用网络的存储器存储位置和信道之间的关系。 在本发明的另一方面，提供一种网络接口模块，其包括存储器以及第一和第二寄存器。 在网络接口模块的一种操作模式中，在总线周期开始之前，从存储器中取出来自客户机的存储器的数据，并将其存储在寄存器中以最小化系统中的存储器访问延迟。
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