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Title:
INFORMATION TRANSMISSION SYSTEM, INFORMATION COMPARISON METHOD AND INFORMATION COMPARISON APPARATUS
Document Type and Number:
Japanese Patent JP2001008239
Kind Code:
A
Abstract:

To provide an information transmission system that enhances quality of transmission information in a digital broadcast and a broadcast supervisory job can be reduced at the same time.

This information transmission system is provided with a PID provision section 39 that provides a PID to any of encoders 4-1 to 4-4, a multiplier 5 and a scrambler 6 and a packet monitor section 35, that compares the PID of transmission information with the PID of reception information between a transmitter and a receiver to monitor presence of a defect of the transmission information. The PID specific to the transmission system denoting the fact of the transmission from the transmission system is provided to each of data in a transmission stage, and only the PID of the transmission information and the PID of the reception information between the transmitter and the receiver are compared, so as to discriminate the existence of missing of the transmission information depending on the agreement or disagreement of both the PIDs, thereby automating the broadcast supervisory job in a television or radio broadcast and improving the quality of the transmission information.


Inventors:
AOKI OSAMU
Application Number:
JP1999000177153
Publication Date:
January 12, 2001
Filing Date:
June 23, 1999
Export Citation:
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Assignee:
SONY CORP
International Classes:
H04N17/00; H04H20/00; H04H20/12; H04H20/14; H04H60/04; H04H60/37; H04L12/18; H04L12/24; H04L12/26; H04L12/56; H04L12/70; H04N19/50; H04N19/70; (IPC1-7): H04N17/00; H04H1/00; H04H7/00; H04L12/18; H04L12/24; H04L12/26; H04L12/56
Attorney, Agent or Firm:
Hidekuma Matsukuma