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

A communication system and data description technology, applied in the field of communication systems, can solve problems such as not being able to obtain data immediately, communication channel saturation, etc.

Inactive Publication Date: 2002-03-13
KONINKLIJKE 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

[0027] Embodiment of the invention

[0028] 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.

[0029] Transmitters include:

[0030] - Data source 104 for generating various data signals such as audio, video, text and image data.

[0031] - Analyzing means 105 for analyzing the data 104 and dividing 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 107. 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 multipl...

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PUM

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Abstract

The invention relates to a communication system between a transmitter and a receiver, where the transmitter transmits digital data and data descriptor via a communication channel to the receiver. Such a communication system provides an identification of the data which are capable of a multiple-use at the level of the transmitter by means of data descriptors inserted in the data flow sent from the transmitter to the receiver. The data flow received at the receiver end is then analyzed so as to detect the presence of data descriptors indicating the presence of multiple-use data. Whenever such a descriptor is detected, it is locally stored at the level of the receiver together with the data to which it relates. The multiple-use data thus stored may then be used not only immediately after their reception at the receiver end, but also subsequently without the necessity of requesting them from 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 Applications(China)
IPC IPC(8): H04N7/08H04L12/18H04N7/081H04N7/12H04N7/24
CPCH04N21/235H04N21/63H04N21/435H04N7/12
Inventor L·赫尔曼
Owner KONINKLIJKE PHILIPS ELECTRONICS NV