Selection compression

• US 20060184982A1
• Filed: 04/11/2006
• Published: 08/17/2006
• Est. Priority Date: 07/27/1999
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Paz, Ofir, Fenster, Maier, Keren, Avishai, Feder, Meir
• Granted Patent: US 8,189,662 B2
• Time in Patent Office: Days
• US Class Current: 725/88
• CPC Class Codes: G06F 9/451 Execution arrangements for user interfaces
• CPC Class Codes: G06Q 30/0251 Targeted advertisements
• CPC Class Codes: G06Q 30/0254 based on statistics
• CPC Class Codes: G06Q 30/0269 based on user profile or attribute
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04N 19/625 using discrete cosine transform [DCT]
• CPC Class Codes: H04N 21/23439 for generating different versions
• CPC Class Codes: H04N 21/25891 being end-user preferences retrieval of video data in a video database based on user preferences G06F16/739; arrangements for recognizing users' preferences H04H60/46; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/2668 Creating a channel for a dedicated end-user group, e.g. insertion of targeted commercials based on end-user profiles information retrieval from the Internet by querying with filtering and personalisation G06F16/9535; arrangements for replacing or switching information during the broadcast H04H20/10; push services over packet-switching network H04L12/1859; adaptation of message content in packet-switching networks H04L51/063
• CPC Class Codes: H04N 21/4113 PC
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/422 Input-only peripherals , i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] input devices also receiving signals from specially adapted client devices H04N21/4104
• CPC Class Codes: H04N 21/478 Supplemental services, e.g. displaying phone caller identification, shopping application
• CPC Class Codes: H04N 21/6587 Control parameters, e.g. trick play commands, viewpoint selection
• CPC Class Codes: H04N 7/17336 Handling of requests in head-ends

Abstract

A method of generating a compressed video stream, comprising: providing a plurality of display commands which represents a display; generating a plurality of quantized transform coefficients from said display commands, wherein said quantization is different for different display commands; and creating a compressed video stream utilization said coefficients.

Claims

1. In a server connected to a client over a network, a method of generating a compressed video stream of a user interface in order to provide said client with remote access to one or more computer programs running at said server, said method comprising:

executing a computer program at a server, said computer program providing a plurality of display commands which represent a user interface for said computer program;

drawing at least a portion of said user interface for said program on a virtual display at said server;

prior to compressing said user interface for remote display at said client, setting at least one compression parameter to different values for different ones of said display commands;

creating a compressed video stream of said user interface by utilizing said at least one compression parameter for said commands;

sending said compressed video stream to said client for remotely displaying said user interface at said client as a video stream as opposed to said plurality of display commands provided by said program; and

receiving user input from said client that is directed to said user interface and

based on the received user input from said client, sending a second compressed video stream to said client for remotely displaying a modified version of said user interface of said computer program.

2. A method according to claim 1, wherein said at least one compression parameter comprises a spatial quantization parameter.

3. A method according to claim 1, wherein said at least one compression parameter comprises a refresh rate.

4. A method according to claim 1, wherein said at least one compression parameter comprises a spectral quantization parameter.

5. A method according to claim 1, wherein said at least one compression parameter comprises an intensity quantization parameter.

6. A method according to claim 1, comprising broadcasting said generated video stream to a plurality of users, using a compressed video transport system.