Method and apparatus for encoding metadata into a digital program stream

A data encoding and metadata technology, applied in the direction of electrical digital data processing, electrical components, program control design, etc., can solve the problem of easy damage or loss of additional broadcast data

Inactive Publication Date: 2010-08-04
SONY CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the additional broadcast-related data is delivered using traditional methods through networks, cable and satellite systems, or broadcast plants, the additional broadcast data is prone to corruption or loss

Method used

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  • Method and apparatus for encoding metadata into a digital program stream
  • Method and apparatus for encoding metadata into a digital program stream
  • Method and apparatus for encoding metadata into a digital program stream

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Embodiment Construction

[0009] One aspect of the invention relates to encoding data within a digital program stream. In one embodiment, an encoding process is provided such that data can be encoded into pre-assigned data channels of a digital program stream (eg, a digital television stream). This processing may include determining an unused portion of the bandwidth of the pre-allocated channel such that metadata may be encoded into the unused portion. It will be appreciated that a program stream may have a predetermined bandwidth for carrying user data. In this way, underused bandwidth can be encoded with data. According to another embodiment, encoding data into pre-assigned data lanes may protect the data during transmission over a network, cable or satellite system without corruption or loss of data. In this way, metadata encoded in the program stream can be provided to a receiving device.

[0010] According to another aspect of the invention, digital program streams may be utilized to provide d...

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Abstract

A method and apparatus for encoding data into a digital program stream includes receiving a digital program stream having a pre-allocated data channel, where the pre-allocated data channel has a pre-defined bandwidth. In one embodiment, metadata may be received and an unused portion of the pre-defined bandwidth of the pre-allocated channel may be determined. In another embodiment, metadata may be encoded into the unused portion of the pre- defined bandwidth.

Description

technical field [0001] The present invention relates generally to methods and apparatus for encoding metadata into a digital program stream. Background technique [0002] Conventional television broadcasters have enabled additional broadcast related information to be transmitted with broadcast programs (eg, closed captioning). In analog television formats such as NTSC, additional information may be encoded in the vertical blanking interval (VBI). As the television format progressed to an all-digital system, VBI was no longer used to carry information. Additionally, the Digital Program Stream does not include VBI. With the expansion of high bandwidth networks and the adoption of digital delivery networks that provide greater amounts of information, there is a need to provide additional information along with broadcast audio and video content. The way in which existing broadcast systems provide additional information along with the broadcast medium relies on a separate tran...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F9/00H04N21/236H04N21/83
CPCH04N21/23614H04N21/23611H04N21/2385H04N21/8126H04N21/435H04N21/235
Inventor罗伯特·布兰查尔德马克·艾耶
OwnerSONY CORP