JPH10336620A - Digital broadcast transmitter and digital broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to obtain one's own charging information. SOLUTION: When a display menu is activated by a remote controller 33 or an input means, a sub microcomputer 29 reads the characters of the display menu from an ROM 30, outputs them to an NTSC encoder 28 and the encoder 28 turns the characters to video signals and displays them on a monitor. When the own charging information or the like is specified while looking at the monitor, the sub microcomputer 29 requests the transmission of the charging information or the like to a transmission side through a modem 31 and a telephone line 3. A tuner 22 tunes high frequency (RF) signals and outputs a scrambled transport stream, descrambling is performed in a descrambler 23 and demultiplexing is performed in a demultiplexer 24. An inverse conversion circuit 32 decodes an EMM(entitlement management message) from the demultiplexer 24 and supplies the own charging information, the history of a purchased program and the data transmission history of a transmission side from the reception side to the sub microcomputer 29 and the sub microcomputer 29 reads the characters of the charging information or the like from the ROM 30, turns them to the video signals in the NTSC encoder and displays them on the monitor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a digital broadcast transmitter and a digital broadcast receiver in a digital broadcast system.

[0002]

2. Description of the Related Art Currently, in a digital broadcasting system,
Billing information, purchased program history, and data transmission history information to the transmission side for each viewer's receiver are automatically sent to the transmission side via a telephone line and stored on the transmission side.

[0003]

Conventionally, in order for a viewer to obtain information such as his / her own billing information, the history of purchased programs, and the history of data transmission to the transmission side, the viewer must make an inquiry to the transmission side by telephone or the like. There was a problem.

[0004] The present invention has been made in view of the above problems, and it is an object of the present invention to allow a viewer to obtain at least one of his or her own billing information, a history of purchased programs, and a history of data transmission to a transmission side. It is an object of the present invention to provide a digital broadcast transmitter and a digital broadcast receiver which enable the above.

[0005]

[Means for Solving the Problems]

(Digital Broadcasting Transmitter) (First Configuration Example) Communication means for receiving at least one transmission request among charging information from a digital broadcast receiving side, a history of purchased programs, and a data transmission history from a receiving side to a transmitting side. A transport stream is generated by multiplexing one or more of the billing information for each digital broadcast receiver, the history of purchased programs, and the data transmission history from the receiving side to the transmitting side, and one or more other data. And a modulating unit that modulates the transport stream from the multiplexing unit into a high-frequency signal that is a broadcast wave.

(Second Configuration Example) In addition to receiving at least one transmission request from charging information and a history of purchased programs from a digital broadcast receiving side and a data transmission history from a receiving side to a transmitting side, digital broadcast reception is performed. Communication means for transmitting at least one of billing information for each machine, history of purchased programs and data transmission history from the receiving side to the transmitting side to the digital broadcasting receiving side, and multiplexing and transporting one or more data. A multiplexing means for generating a stream; and a modulating means for modulating the transport stream from the multiplexing means to produce a high-frequency signal as a broadcast wave.

(Digital Broadcast Receiver) (First Configuration Example) One or more transmission requests from the digital broadcast transmission side of its own billing information, the history of purchased programs, and the data transmission history from the reception side to the transmission side Communication means for transmitting a broadcast stream, a selection means for selecting a predetermined frequency band from a high-frequency signal which is a broadcast wave to obtain a transport stream, and own billing information and purchased information from the transport stream from the selection means. Extracting means for extracting at least one of a program history and a data transmission history from the receiving side to the transmitting side.

(Second Configuration Example) A digital broadcast transmitting side transmits one or more transmission requests of its own billing information, a history of purchased programs and a data transmission history from a receiving side to a transmitting side, and A communication means for obtaining at least one of its own billing information from the transmitting side, a history of purchased programs and a data transmitting history from the receiving side to the transmitting side, and a predetermined frequency band from a high frequency signal which is a broadcast wave. The information processing apparatus further includes a selection unit that obtains a transport stream by selecting, and an extraction unit that extracts one or more data from the transport stream from the selection unit.

[0009]

FIG. 1 shows an outline of a digital broadcast system using a digital broadcast transmitter (hereinafter simply referred to as a transmitter) 1 and a digital broadcast receiver (hereinafter simply referred to as a receiver) 2 according to the present invention. FIG.

FIG. 2 shows the configuration of a transmitter 1 according to a first embodiment of the present invention.

FIG. 3 shows a configuration of a first embodiment of the receiver 2 of the present invention corresponding to the transmitter 1 of FIG.

As shown in FIG. 1, a receiver 2 and a transmitter 1 are connected by a communication means which is a telephone line 3, and a satellite 3 is used from the transmitter 1 to the receiver 2. They are connected by broadcasting means.

The billing information of each receiver 2, the history of purchased programs, and the data transmission history (for example, pay-per-view) from the receiving side to the transmitting side are transmitted from the plurality of receivers 2 via the telephone line 3 and the modem 16. The operation of the transmitter 1 when there is a transmission request will be described.

The authority level information, charging information, history of purchased programs, and history of data transmission from the receiving side to the transmitting side (for example, pay-per-view) are supplied to the conversion circuit 12 for each receiver 2 that has requested transmission.

The conversion circuit converts the input to an MPEG2 format according to a broadcast format called a private section.
EMM as defined in ISO / IEC 13818
(Entitlement Management M
message) and supplies it to the multiplexer 13 at the next stage.

The multiplexer 13 has, for example, an MP
EG2 compressed video data, for example MPE
A plurality of G2 compressed audio data are input. The multiplexer 13 multiplexes these inputs in packet units to generate a transport stream.

The scrambler 14 at the next stage scrambles the input to form a scrambled transport stream.

The modulation circuit 15 at the next stage includes the scrambler 1
4 is modulated to be a radio frequency (RF) signal that is a broadcast wave. This high frequency (RF) signal is transmitted to the satellite 4 via the antenna 17.

Next, the operation of the receiver 2 will be described. First, the billing information of each receiver 2, the history of purchased programs,
A procedure for requesting transmission of a data transmission history (for example, pay-per-view) from the receiving side to the transmitting side will be described.

The viewer, as shown in FIG.
The display menu is activated by the operation of 3 or the operation of an input unit (not shown) of the receiver 2 body.

The sub-microcomputer 29 reads a menu character from the ROM 30 and
To supply. The NTSC encoder 28 converts the character into a video signal and supplies the video signal to the monitor 42.

The monitor 42 displays a list of display menus as shown in FIG. When the viewer selects the third billing information, the history of the purchased program, or the data transmission history from the receiving side to the transmitting side by the remote controller 33 or the input means of the receiver 2, the sub-microcomputer 29 sets the modem 31 and its own billing information via the telephone line 3,
The transmission request is sent to the transmitter 1 for the history of the purchased program and the data transmission history from the receiving side to the transmitting side.

Next, the original operation of the receiver 2 will be described.

The antenna 21 receives a high frequency signal (R
F) Receive the signal.

The tuner 22 selects a predetermined frequency band from high frequency (RF) signals from the antenna 21 to obtain a scrambled transport stream.

A separately provided microcomputer (not shown) decodes the authority level information contained in the EMM in the scrambled transport stream from the tuner 22, generates a descramble signal, and generates a descramble signal.
Supply 3

The descrambler 23 descrambles the output from the tuner 22 and supplies the transport stream to the demultiplexer 24.

The demultiplexer 24 demultiplexes the input transport stream and decompresses the compressed audio data, the compressed video data, and the EM.
M, outputting the personal mail.

The inverse conversion circuit 32 is the conversion circuit 1 of the transmitter 1.
The sub-microcomputer 29 outputs the billing information, the history of the purchased program, and the history of data transmission from the receiving side to the transmitting side by performing the operation reverse to the operation described in 2.

The sub-microcomputer 29 reads from the ROM 30 the charging information, the history of the purchased program, and the character of the data transmission history from the receiving side to the transmitting side, and supplies the characters to the NTSC encoder 28.

The NTSC encoder 28 converts the characters of the billing information, the history of the purchased program, and the data transmission history from the receiving side to the transmitting side into video signals and supplies them to the monitor 42.

As shown in FIG. 8, the monitor 42 displays billing information, a history of purchased programs, and a history of data transmission from the receiving side to the transmitting side. As a result, the user can know his own billing information, the history of purchased programs, and the history of data transmission from the receiving side to the transmitting side.

The compressed audio data is decoded by the audio decoder 25. The decoded audio data is converted into an analog audio signal by the audio-digital-analog converter 27 at the next stage.

The compressed video data is decoded by the video decoder 26. The decoded video data is converted into a video signal by the NTSC encoder at the next stage and supplied to the monitor 42.

FIG. 4 shows a configuration of a transmitter 1 according to a second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

FIG. 5 shows a configuration of a second embodiment of the receiver 2 of the present invention corresponding to the transmitter 1 of FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

Here, only the parts different from the first embodiment will be described.

In FIG. 4, a receiver 2 that has requested transmission is shown.
The accounting information for each of the devices, the history of purchased programs, and the history of data transmission from the receiving side to the transmitting side (for example, pay-per-view) are transmitted to the receiving side using the modem 16 and the telephone line 3.

The sub-microcomputer 29 of the receiver 2 shown in FIG.
The history of the purchased program and the history of data transmission from the receiving side to the transmitting side are input.

The sub-microcomputer 29 reads out the charging information, the history of the purchased program, and the character of the data transmission history from the receiving side to the transmitting side from the ROM 30 and supplies them to the NTSC encoder 28.

The NTSC encoder 28 converts the characters of the accounting information, the history of the purchased program, and the data transmission history from the receiving side to the transmitting side into video signals and supplies them to the monitor 42.

As shown in FIG. 8, the monitor 42 displays billing information, a history of purchased programs, and a history of data transmission from the receiving side to the transmitting side. As a result, the user can know his own billing information, the history of purchased programs, and the history of data transmission from the receiving side to the transmitting side.

Note that the receiver 2 is not limited to requesting three at the same time: the billing information, the history of the purchased program, and the data transmission history from the receiving side to the transmitting side. But it is good.

Also, the transmitter 1 is not limited to sending the charging information, the history of the purchased program, and the data transmission history from the receiving side to the transmitting side simultaneously to the receiving side.
You may send one or more.

The communication is not limited to the telephone line 3 but may be another communication means.

[0046]

As described above, according to the present invention, it becomes possible for a viewer to obtain his / her own billing information, the history of purchased programs, and the history of data transmission from the receiving side to the transmitting side.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of a digital broadcast system using a digital broadcast transmitter 1 and a digital broadcast receiver 2 of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a digital broadcast transmitter 1 according to a first embodiment of the present invention.

FIG. 3 is a block diagram illustrating a configuration of a digital broadcast receiver 2 according to a first embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a digital broadcast transmitter 1 according to a second embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a digital broadcast receiver 1 according to a second embodiment of the present invention.

FIG. 6 is a diagram illustrating activation of a display menu by operation of a remote controller 33 or operation of an input unit (not shown) of the receiver 2 main body.

7 is a diagram showing a list of display menus displayed on a monitor 42. FIG.

FIG. 8 is a diagram showing billing information displayed on a monitor 42, a history of purchased programs, and a history of data transmission from the receiving side to the transmitting side (for example, pay-per-view).

[Explanation of symbols]

1 ... Digital broadcast transmitter, 2 ... Digital broadcast receiver, 3 ... Telephone line, 4 ... Satellite, 12 ...
-Conversion circuit, 13-multiplexer, 14-scrambler, 15-modulation circuit, 16-modem, 17-antenna, 21-antenna, 22-
..Tuner, 23 ... descrambler, 24 ..
.Demultiplexer, 25 ... Audio decoder,
26 video decoder 27 audio digital-analog converter 28 NTSC encoder 29 sub-microcomputer 30 ROM 3
1 Modem, 32 Inverting circuit, 33 Remote control, 41 Menu screen, 42 Monitor.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Atsushi Hirota 8 Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture Inside of Toshiba Multimedia Technology Research Laboratories (72) Eiichiro Tomonaga 8 Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Address: Toshiba Multimedia Technology Research Laboratories Co., Ltd.

Claims (6)

[Claims] Communication means for receiving at least one transmission request from billing information from a digital broadcast receiving side, history of purchased programs, and data transmission history from a receiving side to a transmitting side; Multiplexing means for multiplexing at least one of charging information, a history of purchased programs and a data transmission history from a receiving side to a transmitting side, and one or more other data to generate a transport stream; And a modulating means for modulating the transport stream from the digital camera into a high-frequency signal which is a broadcast wave. 2. Receiving a request for transmission of at least one of billing information from a digital broadcast receiving side, a history of purchased programs and a data transmission history from a receiving side to a transmitting side, and billing information for each digital broadcast receiver. Communication means for transmitting at least one of a history of purchased programs and a data transmission history from the receiving side to the transmitting side to the digital broadcasting receiving side; and a multiplexing means for multiplexing one or more data to generate a transport stream. And a modulating means for modulating the transport stream from the multiplexing means to produce a high-frequency signal as a broadcast wave. 3. A communication means for transmitting one or more transmission requests out of its own billing information, a history of purchased programs and a data transmission history from the receiving side to the transmitting side to the digital broadcasting transmitting side, and a broadcast wave. Selecting means for selecting a predetermined frequency band from the high-frequency signal to obtain a transport stream; and charging information and purchased program history from the transport stream from the selecting means and a program from the receiving side to the transmitting side. A digital broadcast receiver comprising: an extracting unit that extracts one or more data transmission histories. 4. The digital broadcast transmitting side sends out one or more transmission requests out of its own billing information, the history of purchased programs and the data transmission history from the receiving side to the transmitting side. Communication means for obtaining at least one of the following accounting information, the history of purchased programs and the history of data transmission from the receiving side to the transmitting side, and transport by selecting a predetermined frequency band from high frequency signals which are broadcast waves A digital broadcast receiver comprising: a selection unit that obtains a stream; and an extraction unit that extracts one or more data from the transport stream from the selection unit. 5. A display unit for displaying at least one of said own billing information, a history of purchased programs and a data transmission history from a receiving side to a transmitting side. 2. A digital broadcast receiver according to claim 1. 6. A remote control means or an input means, and a menu is displayed on the display means by a viewer's operation of the remote control means or the input means, and when the viewer selects from the display menu, his / her own billing information is displayed. 6. The digital communication system according to claim 5, further comprising control means for transmitting to the communication means at least one transmission request of a history of purchased programs and a data transmission history from a receiving side to a transmitting side. Broadcast receiver.