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2632 results about "Web environment" patented technology

Methods and apparatus for delivering 3D graphics in a networked environment

A system and method for seamlessly combining client-only rendering techniques with server-only rendering techniques. The approach uses a composite stream containing three distinct streams. Two of the streams are synchronized and transmit camera definition, video of server-rendered objects, and a time dependent depth map for the server-rendered object. The third stream is available to send geometry from the server to the client, for local rendering if appropriate. The invention can satisfy a number of viewing applications. For example, initially the most relevant geometry can stream to the client for high quality local rendering while the server delivers renderings of less relevant geometry at lower resolutions. After the most relevant geometry has been delivered to the client, the less important geometry can be optionally streamed to the client to increase the fidelity of the entire scene. In the limit, all of the geometry is transferred to the client and the situation corresponds to client-only rendering system where local graphics hardware is used to improve fidelity and reduce bandwidth. Alternatively, if a client does not have local three-dimensional graphics capability then the server can transmit only the video of the server-rendered object and drop the other two streams. In either case, the approach also permits for a progressive improvement in the server-rendered image whenever the scene becomes static. Bandwidth that was previously used to represent changing images is allocated to improving the fidelity of the server-rendered image whenever the scene becomes static.
Owner:LENOVO (SINGAPORE) PTE LTD

Method and apparatus for content protection in a personal digital network environment

In some embodiments, the invention is a personal digital network (“PDN”) including hardware (sometimes referred to as Ingress circuitry) configured to transcrypt encrypted content that enters the PDN. Typically, the transcryption (decryption followed by re-encryption) is performed in hardware within the Ingress circuitry and the re-encryption occurs before the decrypted content is accessible by hardware or software external to the Ingress circuitry. Typically, transcrypted content that leaves the Ingress circuitry remains in re-encrypted form within the PDN whenever it is transferred between integrated circuits or is otherwise easily accessible by software, until it is decrypted within hardware (sometimes referred to as Egress circuitry) for display or playback or output from the PDN. Typically, the PDN is implemented so that no secret in Ingress or Egress circuitry (for use or transfer by the Ingress or Egress circuitry) is accessible in unencrypted form to software or firmware within the PDN or to any entity external to the PDN. Other aspects of the invention are methods for protecting content in a PDN (e.g., an open computing system) and devices (e.g., multimedia graphics cards, set top boxes, or video processors) for use in a PDN.
Owner:OPTIMUM CONTENT PROTECTION

Method and apparatus for delivering 3D graphics in a networked environment using transparent video

A system and method for seamlessly combining client-only rendering techniques with server-only rendering techniques. The approach uses a composite stream containing three distinct streams. One stream is available to send geometry from the server to the client. Another stream contains video with transparent pixels that allow the client-rendered object to appear in the context of the server rendered objects. The third stream contains camera information. The invention can satisfy a number of viewing applications. For example, initially the most relevant geometry can stream to the client for high quality local rendering while the server delivers renderings of less relevant geometry at lower resolutions. After the most relevant geometry has been delivered to the client, the less important geometry can be optionally streamed to the client to increase the fidelity of the entire scene. In the limit, all of the geometry is transferred to the client and the situation corresponds to client-only rendering system where local graphics hardware is used to improve fidelity and reduce bandwidth. Alternatively, if a client does not have local three-dimensional graphics capability then the server can transmit only the video of the server-rendered object and drop the other two streams. In either case, the approach also permits for a progressive improvement in the server-rendered image whenever the scene becomes static. Bandwidth that was previously used to represent changing images is allocated to improving the fidelity of the server-rendered image whenever the scene becomes static.
Owner:NVIDIA CORP
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