JP2002044616A - Real-time digital broadcasting/analog broadcasting subtitle data converting and sending system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute generation and sending of a subtitle program, by automatically data converting the subtitle data of digital television data broadcasting into a multiplexed text broadcasting which is matched to analog television broadcasting. SOLUTION: A real-time digital broadcasting/analog broadcasting subtitle data converting and sending system comprises the steps of executing the subtitle data of the digital television data broadcasting by data analysis, nonstandard character processing, layout conversion processing, multiplexed text broadcasting type conversion processing, managing information addition processing and packeting processing with software processing by a processing unit (computer), converting the subtitle data into subtitle program data, superimposing the subtitle program data on an analog television video signal by a bits inserter, automatically generating and sending the multiplexed text broadcasting subtitle program on real-time basis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically generating and transmitting subtitle program material for analog television teletext from subtitle data of digital television data broadcasting.
The present invention relates to a caption data conversion and transmission system.

[0002]

2. Description of the Related Art Conventionally, in the production of a subtitle program of text multiplex broadcasting, when the same program is broadcasted with subtitles on digital television and analog television, subtitle data is separately produced, and the produced materials are managed separately.・ We had to operate. For this reason, the production of subtitle materials required labor and time, and was not efficient.
Further, when it is necessary to change the display format from the HD screen to the SD screen, there is a problem that the layout must be manually rearranged for each screen.

[0003]

As described above, producing a subtitle program material for data broadcasting for digital television and text multiplex broadcasting for analog television requires extremely complicated work even for the same program. Yes, it took time. SUMMARY OF THE INVENTION It is an object of the present invention to automatically convert real-time subtitle data of a digital television into a teletext format adapted to an analog television in real time to generate and transmit a subtitle program.

[0004]

Means for Solving the Problems One of the data broadcast data extracted by a decoder from the output distributor of a broadcasting station, a program material reproducing device, or a broadcast wave receiver output is processed by a processing device (computer). Analyze and extract subtitle data. If there is an external character, convert the 2nd level kanji to DJCS and convert the dot figure to DRCS.
Performs software-based layout conversion processing such as changing the character size and display position for the D screen, text multiplex broadcast format conversion processing, management information addition processing, and packetization processing, and converts it into subtitle program data. It is characterized in that a subtitle program data is superimposed, a text multiplex broadcast subtitle program is generated and transmitted in real time, and the process from material generation to transmission is automated.

[0005]

With the above features, the present system can automatically cope with the transmission of subtitle programs for analog television text multiplex broadcasting by preparing subtitle data for digital television broadcasting. Because of the real-time processing, captions during simulcasting can be automatically performed without any special work.
Further, the present invention can be similarly applied to a case where digital television program material including subtitle data is broadcast on analog television. In a cable TV facility, when digital-to-analog conversion from digital television to analog television is performed and retransmitted, by using this system, the drop-in line to the supply destination is superimposed on the subtitles of teletext broadcasting while the analog cable remains the same. A program can be distributed, and a subtitle program can be supported. This system can handle not only subtitles of ordinary language supermarkets but also digital data flashes, so that it is possible to simultaneously transmit socially urgent information to analog television broadcast viewers.

[0006]

FIG. 1 is a block diagram of a real-time digital broadcast / analog broadcast subtitle data conversion / transmission system according to the present invention. One of the data broadcasting data extracted by the decoder 4 from the broadcasting distributor 1, the program material reproducing device 2, or the broadcast wave receiver 3 is subjected to data analysis, external character processing, and processing by the processing device (computer) 5. Layout conversion processing, teletext broadcasting format conversion processing, management information addition processing,
Capturing program data is converted into subtitle program data by software, and the subtitle program data is superimposed on the analog video signal by the bit-in-seater 6 to transmit the subtitle program of the teletext multiplex broadcasting in real time, so that the process from material generation to transmission can be automated. .

[0007]

As described above, if the subtitle data conversion / transmission system according to the present invention is used, the digital television data broadcast data including the subtitle program can be directly sent to the present system, and the character multiplexing of the analog television broadcast can be performed. This has the effect of automating a series of processes up to the transmission of a broadcast subtitle program. No special operation is required, and efficient real-time conversion can be performed with an economical equipment configuration.
As a result, a large number of text multiplex broadcast subtitle programs can be transmitted, which also contributes to correction of information disparity of hearing-impaired persons. In addition, since the new digital media that emerges from the rapid progress of information and communication related technology can be used immediately and at low cost, it can respond to the existing old media that is required,
It also contributes to the development of the entire broadcast.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a real-time digital broadcast / analog broadcast subtitle data conversion / transmission system according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transmission distributor of broadcast station 2 Reproducer of program material 3 Receiver of broadcast wave 4 Decoder 5 Processing unit (computer) 6 Bit twin starter

Claims (1)

[Claims] An output of a broadcast distributor including subtitle data of a digital television data broadcast, an output of a reproducer of a program material such as a digital VTR, or a decoder for decoding a signal of a broadcast wave receiver. Either output broadcast data is analyzed by a processor equipped with software to convert subtitle data, and subtitle data is extracted. If there is a second-level kanji, external character processing is performed, layout conversion processing, text multiplex broadcast format conversion processing , Performs management information addition processing, further converts the converted subtitle data into a transmission format, and superimposes the packetized subtitle program data on an analog video signal by a bit-in-seater to obtain character multiplexing of analog television. Subtitle data conversion and transmission characterized by automatically generating and transmitting broadcast subtitle programs in real time Stem.