The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 17, 2004

Filed:

Jun. 07, 1999
Applicant:
Inventors:

Katsumi Oishi, Tokyo, JP;

Masakatsu Toyoshima, Kanagawa, JP;

Keiji Fukuzawa, Chiba, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 7/20 ;
U.S. Cl.
CPC ...
H04N 7/20 ;
Abstract

The MPEG2TS packet S as the digital broadcast data is obtained from the ECC decoder. The NIT detecting circuit detects NIT from this packet S , changes the transmitting frequency information and deletes the information (service information) of the program to be limited for viewing, thereby to obtain the table NITb. The NIT replacing circuit detects NIT from the packet S and replaces it to the table NITb, thereby to obtain the MPEG2TS packet S as the digital broadcast data in CATV. The digital broadcast signal BS for CATV can be obtained by executing the error correction code adding process, modulating process and frequency-converting process to the packet S . The receiving apparatus for receiving the predetermined program on the basis of the program information of NIT can no longer receive the program in relation to the program information deleted by NIT.


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