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    • 2. 发明授权
    • Method and apparatus for system selection
    • 系统选择的方法和装置
    • US5983092A
    • 1999-11-09
    • US855376
    • 1997-05-13
    • Nicholas WhinnettWilliam RobinsonJonathan GibbsAnthony Van Den Heuvel
    • Nicholas WhinnettWilliam RobinsonJonathan GibbsAnthony Van Den Heuvel
    • H04M15/00H04W4/24H04W48/18
    • H04W48/18H04M15/00H04M15/8044H04M15/83H04W4/24H04M2215/32H04M2215/42H04M2215/745H04M2215/82
    • A method and apparatus enables selection a communication system when a user of a mobile unit is away from a home system to which it is registered. According to one novel aspect, the visited communication system broadcasts (402) a list of standardized type services including tariff information, which is used by the mobile unit to select a system. According to another novel aspect, the mobile initiates an outgoing call of a non-standardised type service by accessing (502) a candidate system and informing it of the location of the home network and desired service identifier. The candidate system obtains (504) the service information on this service from the home network, and then provides (546) a quotation for a required service. Also, a communication system according to the present invention minimises incoming call costs to the user wherein the home system polls (606) the communication systems within range of the mobile unit to select the best system to provide service.
    • 当移动单元的用户远离其登记的家庭系统时,方法和装置能够选择通信系统。 根据一个新颖的方面,被访问的通信系统广播(402)包括资费信息的标准化类型服务的列表,由移动单元用于选择系统。 根据另一个新颖的方面,移动通过访问(502)候选系统并通知其家庭网络的位置和期望的服务标识符来发起非标准化类型服务的呼出。 候选系统从家庭网络获取(504)该服务的服务信息,然后提供(546)所需服务的报价。 此外,根据本发明的通信系统使到达用户的来话成本最小化,其中家庭系统轮询(606)移动单元的范围内的通信系统,以选择提供服务的最佳系统。
    • 4. 发明申请
    • Hybrid volume rendering in computer implemented animation
    • 计算机实现动画中的混合体绘制
    • US20090040220A1
    • 2009-02-12
    • US12012626
    • 2008-02-01
    • Jonathan GibbsJonathan Dinerstein
    • Jonathan GibbsJonathan Dinerstein
    • G06T15/00
    • G06T13/60G06T15/06G06T15/08G06T15/50G06T2210/56
    • In the field of computer graphics and more specifically computer implemented animation, two known alternative methods for rendering objects which have volume (fire, smoke, clouds, etc.) are ray marching and splatting (i.e. particle-based rendering). These methods have contrasting strengths and weaknesses. The present volume rendering method and associated apparatus combine these methods, drawing on the strengths of each. The ray marches a volume but, rather than merely accumulating the samples along the ray, a distinct particle is generated for each sample. Each particle captures the volume's local attributes. The particles are then rendered through splatting. Thus the method has the strengths of splatting e.g., fast 3D motion blur and hardware rendering, and the strengths of ray marching e.g., volume sampling density corresponds with camera proximity since rays disperse, thereby focusing computer processing time on important volume detail and minimizing noise. The present method is useful in production of animated feature films, providing fast high-quality volume rendering with true 3D motion blur.
    • 在计算机图形领域,更具体地说是计算机实现的动画,用于渲染具有体积(火,烟,云等)的物体的两种已知的替代方法是射线行进和拼接(即,基于粒子的渲染)。 这些方法具有对比的优点和缺点。 本体积渲染方法和相关设备结合了这些方法,借鉴了每一种的优点。 光线射出一个体积,但是不是仅沿着光线累积样品,而是为每个样品产生不同的颗粒。 每个粒子捕获卷的本地属性。 然后通过熔化使颗粒呈现。 因此,该方法具有例如快速3D运动模糊和硬件渲染的优点,并且诸如体积采样密度的射线行进的强度对应于相机接近度,因为射线分散,从而将计算机处理时间聚焦在重要的体积细节上并使噪声最小化。 本方法在生产动画短片方面非常有用,可以通过真实的3D运动模糊提供快速高质量的体绘制。