Data transmitting apparatus, data transmitting method, and program recording medium
First Claim
1. A data transmitting apparatus, comprising:
- packet generating means for generating transmitting data as a packet conforming to a communications protocol;
wherein said packet generating means performs packet generating processing by identifying an importance degree of data stored in each packet and setting priority information in accordance with said importance degree to be identified in header information.
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Accused Products
Abstract
A system capable of transmitting data in accordance with importance degree of data to be transmitted and received is provided. In the case of transmitting an IP packet of an MPEG picture, for example, as data which are transmitted by way of a network, a priority in accordance with an importance degree is set as header information by identifying which one of I picture, P picture, and B picture of an MPEG picture is contained in the packet. To put it in concretely, in the case in which the packet contains the I picture having a high importance degree at the time of reproducing MPEG, a bit is set in TOS by setting the priority, which is set in a TOS field of the IP header, as a high priority and by setting as a low priority for the case in which data in the packet are B pictures only. The possibility of disappearance and delay of the I picture having the high priority is reduced in the network, and it comes to be possible to accurately reproduce in the side of receiving.
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Citations
13 Claims
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1. A data transmitting apparatus, comprising:
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packet generating means for generating transmitting data as a packet conforming to a communications protocol;
wherein said packet generating means performs packet generating processing by identifying an importance degree of data stored in each packet and setting priority information in accordance with said importance degree to be identified in header information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A data transmitting method, comprising:
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a packet generating step for generating transmitting data as a packet conforming to a communications protocol;
wherein said packet generating step executes a procedure of identifying importance degree of data stored in each packet and setting priority information in accordance with said importance degree being identified in header information. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A program recording medium for providing a computer program for executing data transmitting processing on a computer system, said computer program comprising:
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a packet generating step for generating transmitting data as a packet conforming to a communications protocol;
wherein said packet generating step contains a step of identifying importance degree of data stored in each packet and setting priority information in accordance with the identified importance degree in header information.
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Specification