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1. 发明授权

US07071945B2 Graphics system interface 有权
公开(公告)号：US07071945B2
公开(公告)日：2006-07-04
申请号：US10716494
申请日：2003-11-20
申请人： Vimal Parikh , Robert Moore , Howard Cheng
发明人： Vimal Parikh , Robert Moore , Howard Cheng
IPC分类号： G06T1/00 , G06F13/14
CPC分类号： G06T15/005 , G06T17/00
摘要： An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.

2. 发明授权

US06947375B2 System and method for network card switchovers in an IP network 失效
标题翻译： IP网络中网卡切换的系统和方法
公开(公告)号：US06947375B2
公开(公告)日：2005-09-20
申请号：US10353196
申请日：2003-01-27
申请人： Vimal Parikh , Amar Gupta , Chi Fai Ho
发明人： Vimal Parikh , Amar Gupta , Chi Fai Ho
IPC分类号： G06F20060101 , H04L1/00 , H04L12/28 , H04L12/56
CPC分类号： H04L49/30 , H04L49/3027 , H04L49/3045 , H04L49/552
摘要： The system provides an IP network card that comprises a redundancy configuration register; an interface; and redundancy mapping logic. The redundancy configuration register stores card configuration data. The interface receives slot active signals from other cards. The redundancy mapping logic is communicatively coupled to the register and interface. The logic maps a packet to a slot having an active card based on the data in the register, an address in the packet, and received slot active signals.
摘要翻译：该系统提供包括冗余配置寄存器的IP网卡; 界面; 和冗余映射逻辑。冗余配置寄存器存储卡配置数据。该接口从其他卡接收槽活动信号。冗余映射逻辑通信地耦合到寄存器和接口。该逻辑基于寄存器中的数据，分组中的地址和接收到的时隙活动信号，将分组映射到具有活动卡的时隙。

3. 发明授权

US06489963B2 Application program interface for a graphics system 有权
公开(公告)号：US06489963B2
公开(公告)日：2002-12-03
申请号：US09885949
申请日：2001-06-22
申请人： Vimal Parikh , Robert Moore , Howard Cheng
发明人： Vimal Parikh , Robert Moore , Howard Cheng
IPC分类号： G06T1500
CPC分类号： G06F12/0875 , A63F2300/203 , G06T15/005 , G06T15/04 , G06T2210/32
摘要： An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.

4. 发明授权

US06456290B2 Application program interface for a graphics system 有权
公开(公告)号：US06456290B2
公开(公告)日：2002-09-24
申请号：US09886278
申请日：2001-06-22
申请人： Vimal Parikh , Robert Moore , Howard Cheng
发明人： Vimal Parikh , Robert Moore , Howard Cheng
IPC分类号： G06T1500
CPC分类号： G06F12/0875 , A63F2300/203 , G06T15/005 , G06T15/04 , G06T2210/32
摘要： An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.

5. 发明授权

US07400325B1 Culling before setup in viewport and culling unit 有权
标题翻译：在视口和拣选单元中设置之前进行剔除
公开(公告)号：US07400325B1
公开(公告)日：2008-07-15
申请号：US10913667
申请日：2004-08-06
申请人： Robert W. Gimby , Henry Packard Moreton , Thomas M. Ogletree , David C. Tannenbaum , Andrew D. Bowen , Christopher J. Goodman , Vimal Parikh , Craig M. Wittenbrink
发明人： Robert W. Gimby , Henry Packard Moreton , Thomas M. Ogletree , David C. Tannenbaum , Andrew D. Bowen , Christopher J. Goodman , Vimal Parikh , Craig M. Wittenbrink
IPC分类号： G06T15/40
CPC分类号： G06T15/40 , G06T11/40
摘要： The VPC unit and setup unit of a graphics processing subsystem perform culling operations. The VPC unit performs culling operations on geometric primitives falling within a specific criteria, such as having a property within of a numerical range limit. This limit reduces the complexity of the VPC unit. As increasing rendering complexity typically produces a large number of small primitives, the VPC unit culls many primitives despite its limitations. The VPC unit also includes a cache for storing previously processed vertices in their transformed form, along with previously computed culling information. This increases the VPC unit throughput by reducing the number of memory accesses and culling operations to be performed. The setup unit performs culling operations on any general primitive that cannot be culled by the VPC unit. By performing a first series of culling operations in the VPC unit, the processing burden on the setup unit is decreased.
摘要翻译：图形处理子系统的VPC单元和设置单元执行剔除操作。 VPC单元对属于特定标准的几何图元执行淘汰操作，例如具有数值范围限制内的属性。这个限制降低了VPC单元的复杂性。随着渲染复杂度的增加，通常会产生大量的小图元，尽管存在局限性，但是VPC单元剔除了许多图元。 VPC单元还包括用于以先前计算的剔除信息存储先前处理的顶点的转换形式的高速缓存。这通过减少要执行的存储器访问和剔除操作的数量来增加VPC单元吞吐量。设置单元对不能被VPC单元剔除的任何一般原语执行剔除操作。通过在VPC单元中执行第一系列的淘汰操作，降低了设置单元的处理负担。

6. 发明申请

US20060250403A1 Graphics system interface 有权
公开(公告)号：US20060250403A1
公开(公告)日：2006-11-09
申请号：US11390237
申请日：2006-03-28
申请人： Vimal Parikh , Robert Moore , Howard Cheng
发明人： Vimal Parikh , Robert Moore , Howard Cheng
IPC分类号： G06T15/00
CPC分类号： G06T15/005 , G06T17/00
摘要： An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.

7. 发明授权

US06175367B1 Method and system for real time illumination of computer generated images 失效
标题翻译：计算机生成图像的实时照明方法和系统
公开(公告)号：US06175367B1
公开(公告)日：2001-01-16
申请号：US08839035
申请日：1997-04-23
申请人： Vimal Parikh , Carroll Philip Gossett
发明人： Vimal Parikh , Carroll Philip Gossett
IPC分类号： G06T1550
CPC分类号： G06T15/506 , G06T15/80
摘要： The present invention provides a method for shading an image comprised of polygons in a graphics system. Each vertex of a polygon has x, y, and z coordinates, a normalized light source vector (L), a normalized surface normal vector (N), a normalized half-angle vector (H), and a specular exponent (s). The present invention selects a polygon and computes the angles between vectors N and L for each of the vertices. It also computes the difference terms between vectors N and H for each of the vertices. Then, the method of the present invention selects a pixel in the polygon to shade. It interpolates an angle between vectors N and L for the pixel based on the angles evaluated for the vertices. Based on the interpolated angle, a diffuse term for the pixel is determined. The present invention also determines a specular term for the selected pixel. It first interpolates a difference term between vectors N and H for the pixel based difference terms for each of the vertices. The specular term for the pixel is then determined from the difference term at the pixel. The method of the present invention then determines a color for the pixel by incorporating the diffuse term and the specualar term according to a Phong lighting equation.
摘要翻译：本发明提供了一种在图形系统中遮蔽由多边形组成的图像的方法。多边形的每个顶点具有x，y和z坐标，归一化光源矢量（L），归一化表面法线向量（N），归一化半角矢量（H）和镜面指数。本发明选择多边形，并且为每个顶点计算向量N和L之间的角度。它还为每个顶点计算向量N和H之间的差异项。然后，本发明的方法选择多边形中的像素进行遮蔽。它基于针对顶点评估的角度来内插像素的向量N和L之间的角度。基于内插角度，确定像素的漫反射项。本发明还确定所选择的像素的镜面项。它首先内插矢量N和H之间的差分项，以用于每个顶点的基于像素的差分项。然后从像素处的差分项确定像素的镜面项。然后，本发明的方法通过根据Phong照明方程并入扩散项和specualar项来确定像素的颜色。

8. 发明授权

US06466218B2 Graphics system interface 有权
标题翻译：图形系统界面
公开(公告)号：US06466218B2
公开(公告)日：2002-10-15
申请号：US09886277
申请日：2001-06-22
申请人： Vimal Parikh , Robert Moore , Howard Cheng
发明人： Vimal Parikh , Robert Moore , Howard Cheng
IPC分类号： G06T1500
CPC分类号： G06F12/0875 , A63F2300/203 , G06T15/005 , G06T15/04 , G06T2210/32
摘要： An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.
摘要翻译：图形系统的界面包括简单但功能强大的构造，易于应用程序员使用和学习。特征包括唯一的顶点表示，允许图形管道保留顶点状态信息并混合索引和直接顶点值和属性; 投影矩阵值设置命令; 显示列表调用对象命令; 和一个嵌入式帧缓冲区清除/设置命令。

9. 发明授权

US06421058B2 Graphics command stream for calling a display object in a graphics system 有权
标题翻译：用于在图形系统中调用显示对象的图形命令流
公开(公告)号：US06421058B2
公开(公告)日：2002-07-16
申请号：US09886047
申请日：2001-06-22
申请人： Vimal Parikh , Robert Moore , Howard Cheng
发明人： Vimal Parikh , Robert Moore , Howard Cheng
IPC分类号： G06F1516
CPC分类号： G06F12/0875 , A63F2300/203 , G06T15/005 , G06T15/04 , G06T2210/32
摘要： An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.
摘要翻译：图形系统的界面包括简单但功能强大的构造，易于应用程序员使用和学习。特征包括唯一的顶点表示，允许图形管道保留顶点状态信息并混合索引和直接顶点值和属性; 投影矩阵值设置命令; 显示列表调用对象命令; 和一个嵌入式帧缓冲区清除/设置命令。

10. 发明授权

US06697074B2 Graphics system interface 有权
标题翻译：图形系统界面
公开(公告)号：US06697074B2
公开(公告)日：2004-02-24
申请号：US10207120
申请日：2002-07-30
申请人： Vimal Parikh , Robert Moore , Howard Cheng
发明人： Vimal Parikh , Robert Moore , Howard Cheng
IPC分类号： G06T1500
CPC分类号： G06T15/005 , G06T17/00
摘要： An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.
摘要翻译：图形系统的界面包括简单但功能强大的构造，易于应用程序员使用和学习。特征包括唯一的顶点表示，允许图形管道保留顶点状态信息并混合索引和直接顶点值和属性; 投影矩阵值设置命令; 显示列表调用对象命令; 和一个嵌入式帧缓冲区清除/设置命令。

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