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1. 发明授权

US5768631A Audio adapter card and method for trapping audio command and producing sound corresponding to the trapped command 失效
标题翻译：用于捕获音频命令并产生与被捕获命令对应的声音的音频适配器卡和方法
公开(公告)号：US5768631A
公开(公告)日：1998-06-16
申请号：US533487
申请日：1995-09-25
申请人： Patrick K. Kam , Robert J. Devins , Stephen Hon , Emory D. Keller
发明人： Patrick K. Kam , Robert J. Devins , Stephen Hon , Emory D. Keller
IPC分类号： G06F3/16 , G06F13/00
摘要： An audio system is provided for generating audio sound for a host computer. It includes an interface connector for connection with the host computer; an interface controller for communicating with the host computer using the interface connector; a trap adapted to trap audio instruction signals from an application running on the host, such as a game having an audio portion; a trap controller adapted to control the trap; and an audio output. The system operates with an interface communicator which is adapted to respond to a request from the interface controller to read information from the trap and send audio output instruction to the audio output to generate audio sound.
摘要翻译：提供音频系统以产生用于主计算机的音频声音。它包括用于与主机连接的接口连接器; 接口控制器，用于使用接口连接器与主机通信; 陷阱，适于从主机上运行的应用捕获音频指令信号，例如具有音频部分的游戏; 适于控制所述陷阱的陷阱控制器; 和音频输出。该系统与接口通信器一起操作，该接口通信器适于响应来自接口控制器的请求以从陷阱读取信息，并将音频输出指令发送到音频输出以产生音频声音。

2. 发明授权

US5784595A DMA emulation for non-DMA capable interface cards 失效
标题翻译：非DMA能力接口卡的DMA仿真
公开(公告)号：US5784595A
公开(公告)日：1998-07-21
申请号：US908214
申请日：1997-08-07
申请人： Robert J. Devins , Stephen Hon , Patrick Kam , Emory D. Keller
发明人： Robert J. Devins , Stephen Hon , Patrick Kam , Emory D. Keller
IPC分类号： G06F9/455 , G06F13/10 , G06F13/28 , G06F31/00 , G06F13/32
CPC分类号： G06F9/45537 , G06F13/105 , G06F13/28
摘要： A method and system are disclosed for simulating a direct memory access (DMA) function to access memory in a host computer having a DMA controller for the purpose of enabling the transfer of data between the host memory and a computer accessory data handling device not capable of DMA operation. The accessory data handling device can be operably connected to the host. The address contents of the DMA controller can be read to determine the location in the host memory where data is to be transferred from the host memory to the accessory data handling device or from the accessory data handling device to the host memory. Data is read from the host memory at the address specified in the DMA controller and written to the accessory data handling device or read from the accessory data handling device and written to the host memory at the address specified by the DMA controller, respectively. The host computer is informed that a DMA operation corresponding to the data transfer has been completed when the data transfer required has been completed.
摘要翻译：公开了一种用于模拟直接存储器访问（DMA）功能以访问具有DMA控制器的主计算机中的存储器的方法和系统，以便能够在主机存储器和不能够执行以下操作的计算机辅助数据处理设备之间传输数据 DMA操作。附件数据处理装置可以可操作地连接到主机。可以读取DMA控制器的地址内容，以确定主机存储器中要从主机存储器传输到附件数据处理设备或从附件数据处理设备传输到主机存储器的位置。数据从DMA控制器中指定的地址从主机存储器读取，并写入附件数据处理设备或从附件数据处理设备读取，并分别以DMA控制器指定的地址写入主机存储器。当完成数据传输时，主计算机通知对应于数据传输的DMA操作已经完成。

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