公开(公告)号：US06346927B1

公开(公告)日：2002-02-12

申请号：US09183944

申请日：1998-10-31

Applicant: Thanh T. Tran ,  David W. Engler

Inventor： Thanh T. Tran ,  David W. Engler

IPC: G09G500

CPC classification number: G09G5/006

Abstract: A monitor having multiple video input ports and connectors is provided with automatic video input detection/selection circuitry. The circuitry may automatically detect when an external source such as a computer system is driving a video input port. The circuitry, for example, may detect whether a video input port is being driven by monitoring a sync signal (vertical or horizontal) for the video input port. A video input detect signal for a video input port may be generated from the sync signal for the video input port. In response to assertion of the video input detect signal indicating a source is driving a video input port, the circuitry may select the particular video input port. A microcontroller of the circuitry may provide a video input selector signal configured to select the video input port. When a single video input port is driven, user interaction is no longer necessary to select the particular video input port. If multiple video input ports are driven, a user may manually choose a particular video input port through a video selection button provided by an on-screen display of the monitor or by the computer system.

Abstract translation: 具有多个视频输入端口和连接器的监视器具有自动视频输入检测/选择电路。 当诸如计算机系统的外部源驱动视频输入端口时，该电路可以自动检测。 例如，电路可以通过监视视频输入端口的同步信号（垂直或水平）来检测是否正在驱动视频输入端口。 视频输入端口的视频输入检测信号可以从视频输入端口的同步信号产生。 响应于表示源正在驱动视频输入端口的视频输入检测信号的断言，电路可以选择特定的视频输入端口。 电路的微控制器可以提供被配置为选择视频输入端口的视频输入选择器信号。 当单个视频输入端口被驱动时，不再需要用户交互来选择特定的视频输入端口。 如果驱动多个视频输入端口，则用户可以通过由监视器的屏幕显示或计算机系统提供的视频选择按钮手动地选择特定的视频输入端口。

公开(公告)号：US5864811A

公开(公告)日：1999-01-26

申请号：US748268

申请日：1996-11-13

Applicant: Thanh T. Tran ,  John A. Landry ,  Robert F. Watts

Inventor： Thanh T. Tran ,  John A. Landry ,  Robert F. Watts

IPC: G06F3/16 ,  G10H1/00 ,  H04S7/00 ,  G10L9/00

CPC classification number: G10H1/0058 ,  G10H2240/071

Abstract: An audio circuit for a computer includes a bidirectional modem connection, a microphone input, first and second audio output channels, and an audio synthesizing circuit arranged to produce first and second synthesized audio channels. In a first mode of operation the first synthesized audio channel is applied to the first audio output channel and the second synthesized audio channel is applied to the second audio output channel. In a second mode of operation the first and second synthesized audio channels are combined into a monotonic signal and applied to the second audio output channel, and audio signals from the bidirectional modem connection are applied to the first audio output channel.

Abstract translation: 用于计算机的音频电路包括双向调制解调器连接，麦克风输入，第一和第二音频输出通道，以及被配置为产生第一和第二合成音频通道的音频合成电路。 在第一操作模式中，将第一合成音频通道应用于第一音频输出通道，并将第二合成音频通道应用于第二音频输出通道。 在第二操作模式中，第一和第二合成音频通道被组合成单调信号并且被施加到第二音频输出通道，并且来自双向调制解调器连接的音频信号被施加到第一音频输出通道。

公开(公告)号：US5818299A

公开(公告)日：1998-10-06

申请号：US511138

申请日：1995-08-04

Applicant: Thanh T. Tran

Inventor： Thanh T. Tran

IPC: H03G3/34

CPC classification number: H03G3/348

Abstract: An apparatus is described for providing power management of a computer. The apparatus includes circuitry configured to assert a power down signal when a low power mode is to be entered and to de-assert the power down signal when the low power mode is to be exited. An audio amplifier has a power input and a mute input, and a switch is connected to the power input and configured to selectively supply power to the power input. A power down circuit is provided responsive to the power down signal and connected to the mute input and the switch such that when the power down signal is asserted, the power down circuit activates the mute input and subsequently closes the switch, and when the power down signal is de-asserted, the power down circuit open the switch and subsequently deactivates the mute input.

Abstract translation: 描述了一种用于提供计算机的电源管理的装置。 该装置包括被配置为当要输入低功率模式时断言掉电信号并且当要退出低功率模式时解除断电信号的电路。 音频放大器具有电源输入和静音输入，并且开关连接到电源输入并被配置为选择性地向电源输入供电。 断电电路响应于掉电信号被提供并连接到静音输入和开关，使得当掉电信号被断言时，掉电电路激活静音输入并随后闭合开关，并且当掉电 信号被取消置位，掉电电路打开开关，然后停用静音输入。

公开(公告)号：US5761051A

公开(公告)日：1998-06-02

申请号：US625932

申请日：1996-04-01

Applicant: Thanh T. Tran

Inventor： Thanh T. Tran

IPC: G06F1/26 ,  H05K1/00 ,  H05K1/02 ,  H05K1/11 ,  H05K1/16 ,  H05K7/02

CPC classification number: H05K1/0265 ,  G06F1/26 ,  H05K1/0216 ,  H05K1/0233 ,  H05K1/0262 ,  H05K1/0298 ,  H05K2201/044 ,  H05K2201/086 ,  H05K2201/093 ,  H05K2201/09663 ,  H05K2201/09972 ,  H05K2201/1006 ,  H05K2201/10159

Abstract: A power distribution system for a multi-layer circuit board includes a board having a component layer with signal runs formed thereon, a ground layer, an insulation layer, and a power supply system. The power supply system includes a supply bus, discrete voltage supply planes, and isolation devices mounted on the component layer, each connecting one of the discrete voltage supply planes to the supply bus. The component layer has a first area for components which perform a first function and a second area for components which perform a second function. The discrete voltage supply planes include a first supply plane corresponding to the first area and a second supply plane corresponding to the second area. The first supply plane is disposed directly beneath and is shaped substantially the same as the first area, and the second supply plane is disposed directly beneath and is shaped substantially the same as the second area. The first supply plane, the second supply plane, and the supply bus lie in a plane between the insulation layer and the component layer.

Abstract translation: 一种用于多层电路板的配电系统包括具有其上形成有信号线的部件层的基板，接地层，绝缘层和电源系统。 电源系统包括一个供电总线，分立的电压供应平面和安装在组件层上的隔离装置，每个将一个离散电压供应平面连接到电源总线。 组件层具有用于执行第一功能的组件的第一区域和用于执行第二功能的组件的第二区域。 离散电压供给平面包括对应于第一区域的第一供应平面和对应于第二区域的第二供应平面。 第一供应平面直接设置在下方并且被形成为与第一区域基本相同，并且第二供应平面直接设置在下方并且被成形为与第二区域基本相同。 第一供电面，第二供电面和供电总线位于绝缘层与构成层之间的平面内。

公开(公告)号：US5696814A

公开(公告)日：1997-12-09

申请号：US634530

申请日：1996-04-18

Applicant: Thanh T. Tran ,  Kurtis J. Bowman

Inventor： Thanh T. Tran ,  Kurtis J. Bowman

IPC: H04M1/60 ,  H04M1/62 ,  H04R5/02 ,  H04M1/00 ,  H04M9/00 ,  H04R27/00

CPC classification number: G06F3/16 ,  H04M1/6033 ,  H04M1/62 ,  H04R5/02 ,  H04R2499/15

Abstract: An audio system for multimedia computer systems and method for use are provided including an audio module having speakers, a microphone and associated circuitry. The audio module is adapted to be interposed between a monitor and a monitor pedestal such that the audio module swivels and tilts in concert with the monitor. The circuitry is adapted to drive the audio module speakers and to drive only one speaker and the microphone in a speaker phone mode.

公开(公告)号：US07478353B2

公开(公告)日：2009-01-13

申请号：US11421307

申请日：2006-05-31

Applicant: Thanh T. Tran

Inventor： Thanh T. Tran

IPC: G06F17/50

CPC classification number: G06F17/5036 ,  H01L2224/16227 ,  H01L2924/15313 ,  H01L2924/19015 ,  H01L2924/19041 ,  H01L2924/19104 ,  H01L2924/19105 ,  H01L2924/19106 ,  H05K1/0231 ,  H05K1/185 ,  H05K2201/10545 ,  H05K2201/10734 ,  H05K2203/1572

Abstract: An embodiment of the present invention includes a method of providing a non-uniform distribution of decoupling capacitors to provide a more uniform noise level across the chip. Leads on a packaged semiconductor chip are grouped into two or more regions. Types of leads needing decoupling capacitors are grouped into lead categories. For each region, there may be one or more lead categories therein. One or more decoupling capacitors are preferably assigned to each lead category in each region. Calculations may be performed to estimate a desired capacitance for each decoupling capacitor for each lead category in each region. When a chip has different components operating at different switching frequencies, different voltages, and/or different switching currents, the distribution of the decoupling capacitors will likely be non-uniform to provide a more uniform noise level across the chip, as compared to a uniform distribution of decoupling capacitors for the chip.

Abstract translation: 本发明的实施例包括提供去耦电容器的不均匀分布以在芯片上提供更均匀的噪声电平的方法。 封装的半导体芯片上的引线被分组为两个或更多个区域。 需要去耦电容器的引线类型分为引线类别。 对于每个区域，其中可以有一个或多个引线类别。 一个或多个去耦电容器优选地分配给每个区域中的每个引线类别。 可以执行计算，以估计每个区域中每个引线类别的每个去耦电容器的期望电容。 当芯片具有以不同开关频率，不同电压和/或不同开关电流工作的不同部件时，去耦电容器的分布可能不均匀，以便在整个芯片上提供更均匀的噪声电平，与均匀 芯片去耦电容的分布。

公开(公告)号：US07046308B1

公开(公告)日：2006-05-16

申请号：US09191629

申请日：1998-11-13

Applicant: Thanh T. Tran ,  Michael P. Moriarty ,  Giang H. Dao

Inventor： Thanh T. Tran ,  Michael P. Moriarty ,  Giang H. Dao

IPC: H04N7/01 ,  G06F13/16

CPC classification number: G09G5/399 ,  H04N5/0736 ,  H04N5/4401 ,  H04N21/4302 ,  H04N21/4316 ,  H04N21/44004

Abstract: A digital television/local bus interface logic supports handling of digital television (DTV) data with non-tearing. The interface logic provides a dual frame buffer DTV architecture in which a pair of DTV/local bus frame buffers alternate functions: one frame buffer stores incoming DTV data and the other frame buffer stores the outgoing DTV data. When a refresh of a display device reaches a programmed position of the display device, the interface logic determines which frame buffer is being updated by the incoming DTV data. The outgoing DTV data is then read from an opposite frame buffer and transmitted to the display device. The interface logic receives a horizontal sync signal and a vertical sync signal from the graphics controller for monitoring refresh of the display device. The interface logic also provides an architecture for transferring decoded DTV data over a local bus to the graphics controller.

Abstract translation: 数字电视/本地总线接口逻辑支持数字电视（DTV）数据的处理，而不会撕裂。 接口逻辑提供双帧缓冲器DTV架构，其中一对DTV /局部总线帧缓冲器具有交替功能：一个帧缓冲器存储输入的DTV数据，另一个帧缓冲器存储输出的DTV数据。 当显示设备的刷新达到显示设备的编程位置时，接口逻辑确定正在由输入的DTV数据更新哪个帧缓冲器。 然后从相对的帧缓冲器读出输出的DTV数据，并将其发送到显示设备。 接口逻辑从图形控制器接收水平同步信号和垂直同步信号，用于监视显示设备的刷新。 接口逻辑还提供了一种用于通过局部总线将解码的DTV数据传送到图形控制器的架构。

公开(公告)号：US6052744A

公开(公告)日：2000-04-18

申请号：US933675

申请日：1997-09-19

Applicant: Michael P. Moriarty ,  Thanh T. Tran ,  Thomas J. Bonola

Inventor： Michael P. Moriarty ,  Thanh T. Tran ,  Thomas J. Bonola

IPC: G06F13/40 ,  H04N21/4143 ,  H04N21/4363 ,  F04B15/02

CPC classification number: G06F13/4027 ,  H04N21/4363 ,  H04N21/4143

Abstract: A multimedia system including a PCI bus master controller for transferring concurrent and independent video and audio data streams to video and audio devices. The controller includes a video request and DMA channel, a video sub-picture request and DMA channel, an audio request and DMA channel, and a decompressed video DMA and posted request channel for independently and concurrently transferring the data streams from host memory to the devices. The host processor builds lists of request packets in system memory and asynchronously submits the request packets to the controller. The request packets include commands which the request channels execute. The commands may include spinning on status conditions in registers of the multimedia devices, writing to registers of the devices, or performing bus master transfers of multimedia data streams from system memory to the devices. The device register accesses are performed by the controller on local buses thereby reducing PCI bus traffic.

Abstract translation: 一种多媒体系统，包括用于将并发且独立的视频和音频数据流传输到视频和音频设备的PCI总线主控制器。 控制器包括视频请求和DMA通道，视频子图像请求和DMA通道，音频请求和DMA通道以及解压缩的视频DMA和发布的请求通道，用于独立并且同时地将数据流从主机存储器传送到设备 。 主机处理器在系统内存中构建请求数据包的列表，并将请求数据包异步地提交给控制器。 请求数据包包括请求通道执行的命令。 命令可以包括旋转多媒体设备的寄存器中的状态条件，写入设备的寄存器，或者从系统存储器到设备执行多媒体数据流的总线主传输。 设备寄存器访问由控制器在本地总线上执行，从而减少PCI总线流量。

公开(公告)号：US5764491A

公开(公告)日：1998-06-09

申请号：US799472

申请日：1997-02-13

Applicant: Thanh T. Tran

Inventor： Thanh T. Tran

IPC: G06F1/26 ,  H05K1/00 ,  H05K1/02 ,  H01R9/09 ,  H05K1/16 ,  H05K7/06 ,  H05K9/00

CPC classification number: H05K1/0265 ,  G06F1/26 ,  H05K1/0216 ,  H05K1/0233 ,  H05K1/0262 ,  H05K1/0298 ,  H05K2201/044 ,  H05K2201/086 ,  H05K2201/093 ,  H05K2201/09663 ,  H05K2201/09972 ,  H05K2201/1006 ,  H05K2201/10159

Abstract: A power distribution system for a multi-layer circuit board includes a board having a component layer with signal runs formed thereon, a ground layer, an insulation layer, and a power supply system. The power supply system includes a supply bus, discrete voltage supply planes, and isolation devices mounted on the component layer, each connecting one of the discrete voltage supply planes to the supply bus. The component layer has a first area for components which perform a first function and a second area for components which perform a second function. The discrete voltage supply planes include a first supply plane corresponding to the first area and a second supply plane corresponding to the second area. The first supply plane is disposed directly beneath and is shaped substantially the same as the first area, and the second supply plane is disposed directly beneath and is shaped substantially the same as the second area. The first supply plane, the second supply plane, and the supply bus lie in a plane between the insulation layer and the component layer.

Abstract translation: 一种用于多层电路板的配电系统包括具有其上形成有信号线的部件层的基板，接地层，绝缘层和电源系统。 电源系统包括一个供电总线，分立的电压供应平面和安装在组件层上的隔离装置，每个将一个离散电压供应平面连接到电源总线。 组件层具有用于执行第一功能的组件的第一区域和用于执行第二功能的组件的第二区域。 离散电压供给平面包括对应于第一区域的第一供应平面和对应于第二区域的第二供应平面。 第一供应平面直接设置在下方并且被形成为与第一区域基本相同，并且第二供应平面直接设置在下方并且被成形为与第二区域基本相同。 第一供电面，第二供电面和供电总线位于绝缘层与构成层之间的平面内。

公开(公告)号：US4951171A

公开(公告)日：1990-08-21

申请号：US350595

申请日：1989-05-11

Applicant: Thanh T. Tran ,  Richard E. Walker ,  Richard A. Faulk

Inventor： Thanh T. Tran ,  Richard E. Walker ,  Richard A. Faulk

IPC: G06F1/30 ,  G06F11/00 ,  H02J9/06

CPC classification number: G06F11/0754 ,  G06F1/30 ,  H02J9/061

Abstract: A computer system having a power supply monitoring arrangement employs a number of comparators for detecting whether or not various supply voltages produced by the power supply for use in the computer are above or below a reference level, or whether an overcurrent condition exists. These detected conditions are used to determine whether or not the power supply should be shut down, or during power-up to determine whether the initialization routine can be started by the CPU. Delays are included to prevent an undervoltage condition from indicating shut down of the power supply during power-up.

Abstract translation: 具有电源监视装置的计算机系统采用多个比较器，用于检测由用于计算机的电源产生的各种电源电压是否高于或低于参考电平，或者是否存在过电流状况。 这些检测条件用于确定电源是否应该关闭，或者在上电期间，以确定CPU是否可以启动初始化程序。 包括延迟以防止在上电期间电源关闭的欠电压状态。