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Flow transmitting device and flow receiving device, flow receiving/transmitting device and network system control method

A technology for a receiving device and a transmitting device, which is applied to transmission systems, two-way working systems, digital transmission systems, etc., can solve the problems of improving the reliability and quality of receiving control without special consideration, and achieves preventing the reduction of receiving quality, preventing quality deterioration, The effect of improving quality

Inactive Publication Date: 2005-12-07
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned prior art aims to use a plurality of streams at the same time, and does not particularly consider improving the reliability of reception control of each received stream and improving the quality of received stream data.

Method used

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  • Flow transmitting device and flow receiving device, flow receiving/transmitting device and network system control method
  • Flow transmitting device and flow receiving device, flow receiving/transmitting device and network system control method
  • Flow transmitting device and flow receiving device, flow receiving/transmitting device and network system control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Use below Figure 1 to Figure 7 Embodiment 1 of the present invention will be described.

[0034] figure 1 It is the same configuration diagram showing the configuration of a stream transmission and reception system composed of a stream transmission device, a stream reception device, and a gateway device for controlling access to other networks according to the present invention. figure 2 It is a hardware block diagram showing the hardware configuration of the stream receiving device or the stream transmitting device of the present invention. image 3 is a block diagram showing the functional configuration of the stream receiving device, Figure 4 is a block diagram showing the functional configuration of the streaming distribution device, Figure 5 is a block diagram representing the flow of stream data received by the stream receiving device, Image 6 is a sequence diagram showing the processing flow of the stream selection unit and the stream management unit, ...

Embodiment 2

[0055] Use below Figure 8 , 9 Embodiment 2, which is another embodiment of the present invention, will be described.

[0056] Figure 8 is a block diagram showing the configuration of the stream receiving device of this embodiment, Figure 9 It is a sequence diagram showing the processing flow of the received stream coordinating unit of the stream receiving device.

[0057] exist Figure 8 Among them, 801 is the stream receiving device of this embodiment; 802 is sending and receiving data from the network; 803 is external input such as user's input to the device control unit 804; 804 is the device control unit for controlling the whole stream receiving device; 806 is A communication functional unit for sending and receiving data with other devices through the network; 807 is a stream switching unit for switching the stream data input to the stream control unit 808 in response to receiving an instruction from the stream cooperation unit 809; 808 is a stream switching unit ...

Embodiment 3

[0070] Next, use Figure 10 , 11 , 12 to describe Embodiment 3 which is another embodiment of the present invention. Figure 10 is a block diagram showing the configuration of the stream transmission device of this embodiment, Figure 11 is a block diagram showing the configuration of a stream receiving device, Figure 12 is a sequence diagram showing the processing flow of the transmission stream coordinating unit of this embodiment.

[0071] exist Figure 10 Among them, 1001 is the stream sending device of this embodiment; 1003 is sending and receiving data from the network; 1002 is external input such as user's input to the device control unit 1005; 1004 is stream data input from an external stream providing unit such as broadcasting station equipment 1005 is a device control unit for overall control of the stream transmission device; 1006 is a stream management unit for management such as selection of stream data to be sent; Stream recording unit; 1009 is a stream sel...

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PUM

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Abstract

In a network system including a stream transmitter and a stream receiver, continuous use can be made of stream data that is the same as or similar to stream data subjected to reception or transmission interruption. The stream receiver includes stream selection unit capable of selecting stream data that is the same as or similar to stream data being received, communications function unit capable of switching to stream data selected by the stream selection unit, and stream switching unit.

Description

technical field [0001] The present invention relates to an information processing device such as a home appliance or a personal computer connected to a network, and particularly relates to a stream transmission device that transmits streaming data such as animation and sound, and when receiving and transmitting the stream and reproducing animation, In a network constituted by stream receiving devices of audio information, a method for controlling sending and receiving of stream data and a device for sending and receiving streams. Background technique [0002] As a conventional stream data control method, it has been proposed to transmit and receive video and sound (audio) information as stream data between a stream sending device and a stream receiving device using MPEG2 transport streams widely used in various digital broadcasting. data format and control method. [0003] In addition, regarding the method of simultaneously receiving a plurality of stream data by using one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/00H04L12/00H04L45/243H04N7/173H04N21/432H04N21/4425H04N21/472
CPCH04L65/4076H04L29/0651H04L29/06027H04L65/607H04L29/06455H04L65/611H04L65/70H04L65/1101
Inventor 大條成人
Owner HITACHI LTD