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Providing Video Content to a Subscriber While Minimizing Transmission Channel Capacity

a technology of video content and transmission channel capacity, applied in the field of ip television and bandwidth management, can solve the problems of inability to provide bandwidth to users, inability to reduce bitrate, and inability to always be suitable for alternativ

Inactive Publication Date: 2008-11-13
CISCO TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to managing and optimizing the data rate for video services over a broadband network, such as DSL. The invention addresses the challenge of delivering video over IP networks, which require significant bandwidth for transmission. The invention provides a solution for individualizing the video data rate for each television or device in a subscriber premises, by managing and optimizing the bandwidth allocation for video services. This helps to maintain high-quality video delivery and minimize the impact of network congestion. The invention also addresses the issue of oversubscribed bandwidth, which can cause video to be dropped and become corrupt due to packets being dropped. The invention provides a solution for managing and optimizing the data rate for video services over a broadband network, ensuring better video quality and efficient use of network infrastructure.

Problems solved by technology

Delivering video over IP is bandwidth intensive and, therefore, bandwidth to the home is a precious commodity due to the fact that broadband-quality video consumes a significant portion of a communication channel's data transmission capacity.
Oversubscribing bandwidth means the bandwidth a user subscribes to is not always available to them.
Therefore, audio and video becomes corrupt due to packets being dropped when a link to a subscriber is oversubscribed.
However, services delivered to the home must be perceived to be of high quality and, thus, bit-rate reduction may not always be a suitable alternative.

Method used

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  • Providing Video Content to a Subscriber While Minimizing Transmission Channel Capacity
  • Providing Video Content to a Subscriber While Minimizing Transmission Channel Capacity
  • Providing Video Content to a Subscriber While Minimizing Transmission Channel Capacity

Examples

Experimental program
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Effect test

first embodiment

[0034]In a first embodiment, according to the characteristic or set of characteristics of a first display device coupled to a first STB 20, a first instance of a first video program is transmitted to the first STB 20. The first instance of the first video program exhibits one or more compression characteristics corresponding to one or more characteristics of the first display device. In particular, the compression characteristics of the first instance of the first video program are such that the spatial picture resolution, picture rate, or picture scan format, or any combination thereof, are modified from their corresponding original form at the time the video was created or imaged, in order to reduce the amount of information that must be compressed and transmitted to STB 20. The result is that the first instance of the first video program exhibits an increased amount of compression, or, equivalently, a lower bit-rate in its real-time transmission. However, the amount of modificati...

second embodiment

[0046]In a second embodiment, a first display device is coupled to a first STB 20 and a second display device is coupled to a second STB 20 (not shown). The first STB 20 is coupled to a first loop 16 and second STB 20 is coupled to a second loop 16. A first request for the first video program (e.g., effected by a television channel change or as a movie purchase) is generated from the first STB 20 and a second request for the first video program is generated from the second STB 20. Responsive to the first request for the first video program, a first instance of the first video program is transmitted to the first STB 20 and responsive to the second request for the first video program, a second instance of the first video program is transmitted to the second STB 20, the compression characteristics of the first instance of the first video program in compressed form being different than the compression characteristics of the second instance of the first video program in compressed form. ...

third embodiment

[0047]In a third embodiment, the first and second instance of the first video program in compressed form differ only when transmitting the first video program, or any portions thereof, simultaneously in real-time to the first STB 20 and the second STB 20.

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Abstract

A method for providing video content to a subscriber while minimizing transmission channel capacity that includes acquiring information corresponding to factors contributing to a perceived picture quality at a display device in communication with a set-top box, compressing video content based on the acquired information, and transmitting over a local loop the compressed video content at a bit rate based on the acquired information, the bit rate corresponding to the perceived picture quality of the video content capable of being provided by an ensemble comprised of the display device, the set-top box, and the local loop.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation of copending U.S. Utility application entitled, “Optimizing Bandwidth Utilization to a Subscriber Premises,” having Ser. No. 11 / 162,345, filed Sep. 7, 2005, which is entirely incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to IP television and bandwidth management. More particularly, the present invention relates to individualizing the video data rate for a particular television.BACKGROUND OF THE INVENTION[0003]The advent of higher-bandwidth Internet services over existing communication networks has created an alternative method to deliver video programming. However, Internet Protocol, or IP, based digital video distribution is capable of utilizing network infrastructures other than those used by the traditional Internet services. IP video or IP television (IPTV) is the transmission of television signals (digital video and audio) through data networks such as, for examp...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N7/173
CPCH04N7/17318H04N21/2402H04N21/25808H04N21/25825H04N21/2662H04N21/4122H04N21/4334H04N21/6373
Inventor MCDONALD, JAMES F.AVILA, LUISRODRIGUEZ, ARTURO A.WALL, WILLIAM E.
Owner CISCO TECH INC
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