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Data receiving method and data receiving unit for said method

A data receiving method and technology of a receiving unit, applied in the field of satellite data release system and communication service system, to achieve the effects of reducing computer errors, preventing errors, and reducing computer load

Inactive Publication Date: 2005-05-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no data receiving system has this capability

Method used

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  • Data receiving method and data receiving unit for said method
  • Data receiving method and data receiving unit for said method
  • Data receiving method and data receiving unit for said method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The invention will now be described with reference to the accompanying drawings.

[0018] First, refer to figure 1 , describes a system configuration of a satellite data broadcast / communication service in which a data receiving unit according to an embodiment of the present invention is used.

[0019] Such as figure 1 As shown, the satellite data broadcasting / communication service includes a plurality of information providers 1a to 1n and a service operating company 2 that transmits information sent from the information providers 1a to 1n to a communication satellite 3 in the form of broadcast data. The data relayed by the communication satellite 3 is received by the data receiving units of the paying users 4a to 4n. The data receiving units of the paying users 4a to 4n are connected to the service operating company 2 through a wired transmission channel 5 such as a public circuit network or a dedicated line, and information can be sent by each paying user. The servi...

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PUM

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Abstract

A data receiving method and unit extracts required data from received digital signal data, and decodes the extracted data using a predetermined decoding key. In the method and unit, it is determined whether the decoded data is normal. If it is determined that decoding is not normally performed, the corresponding data is deleted.

Description

technical field [0001] The invention relates to a satellite data distribution system and a communication service system, in particular to a data receiving method and unit suitable for receiving computer data electronically distributed to individuals. Background technique [0002] The Moving Pictures Experts Group Phase 2 (MPEG-2) standard is a coding method applied to current broadcasting, high-definition television, audio-visual equipment, and the like. By realizing broadcasting services using digital broadcasting signals encoded in the MPEG-2 standard, the number of channels can be increased in conventional analog broadcasting, and the cost per channel can be reduced. This enables, for example, to broadcast not only images and sounds but also various types of data. [0003] In multi-channel digital broadcasting, various data broadcasts utilize the high transmission speed of satellites (for example, a maximum of 30 Mbps in the case of a 27 MHz transponder). Data broadcast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04H20/00H04H60/15H04H60/23H04L1/00H04L9/36H04L12/22H04L12/56H04L12/70H04L12/701H04L29/06H04N7/16H04N7/167H04N7/20H04N21/4335H04N21/4623
CPCH04H60/15H04H60/16H04H60/23H04L63/0428H04L63/10H04N7/1675H04N21/235H04N21/435H04N21/43853H04N21/4425H04N21/434
Inventor 石井真
Owner SONY CORP