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Communication system, transmitting machine, receiver and method for using data storage express symbols

A technology of data description and communication system, applied in the field of communication system, can solve the problems of inability to obtain data immediately, saturation of communication channels, etc.

Inactive Publication Date: 2005-07-13
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of data that is not stored locally and that data is important to the user and the user wants to consult it, the sender needs to resend the data, thus risking saturation of the communication channel and the risk of not being able to obtain the data immediately

Method used

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  • Communication system, transmitting machine, receiver and method for using data storage express symbols
  • Communication system, transmitting machine, receiver and method for using data storage express symbols
  • Communication system, transmitting machine, receiver and method for using data storage express symbols

Examples

Experimental program
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Embodiment Construction

[0041] figure 1 A communication system of the present invention is described, the system includes a transmitter 101 and a receiver 102, which communicate through a communication channel 103.

[0042] Transmitters include:

[0043] - Data source 104 for generating various data signals such as audio, video, text and image data.

[0044] - Analyzing means 105 for analyzing the data 104 and separating them into two types, one type is multi-use data 106 which can be used multiple times at the receiving end 102, and the other type is single-use data which is only used once at the receiving end data107. The multi-use data is detected based on, for example, the type of the multi-use data or other identification parameters pre-selected. The sorting is performed on the basis of a prior request of the user present at the receiving end 102, for example. For example, if data 104 is a video trailer of a TV program, these data are likely to be used multiple times at the receiving end, so...

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PUM

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Abstract

The invention relates to a communication system between a transmitter and a receiver, said transmitter sending digital data and data descriptors to the receiver over a communication channel. The described communication system indicates multiple use data by inserting a data descriptor at the transport layer into a data stream sent from a transmitter to a receiver. The data received at the receiving end is analyzed to detect the presence of data descriptors indicating the presence of multiple usage data. If a data descriptor is detected, the multi-use data and its descriptor are stored locally at the receive layer. Stored multi-use data can be used immediately after receipt or later without retransmission by the transmitter.

Description

technical field [0001] The invention relates to a communication system between a transmitter and a receiver, said transmitter sending digital data and data descriptors to the receiver via a communication channel. Background technique [0002] There are many applications for multimedia data communication systems in a point-to-point architecture or more commonly in a client / server architecture. [0003] PCT document published under number WO98 / 03016 describes a method and system for transmitting digital data from a transmitter to a receiver over an undirectional communication channel. The digital data received by the receiver is collected and locally stored on a standard basis reflecting the user profile so that the user at the receiving end can subsequently use the stored data. [0004] The storage methods used in the prior art for storing data transmitted by a transmitter suffer from a number of drawbacks. [0005] First of all, the selection of data to be stored in the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/015H04N7/14H04N7/16H04N5/38H04N5/44H04N7/08H04L12/18H04N7/081H04N7/12H04N7/24
CPCH04N21/235H04N21/435H04N21/63H04N7/12
Inventor L·赫尔曼
Owner KONINK PHILIPS ELECTRONICS NV