JP2001309187A - Receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital broadcast receiver that can print out an EPG menu. SOLUTION: The digital broadcast receiver applies facsimile coding to EPG pixel data and allows a modem circuit to transmit facsimile data to a connected facsimile terminal while controlling a subscriber circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver for receiving a digital broadcast and displaying a program, and in particular, to an EPG (Elephone).
The present invention relates to a receiver having a ctronic program guide) function.

[0002]

2. Description of the Related Art Digital multi-channel broadcasting using satellites is currently being called CS digital broadcasting.

[0003] This broadcast is described in the Ministry of Posts and Telecommunications Ordinance No. 57, June 11, 1998, "Ministry Ordinance for Revision of All Standard Transmission Methods for Digital Broadcasting Among Standard Television Broadcasts" and the Ministry of Posts and Telecommunications No. 260. Be compliant. (Of the standard television broadcasting, etc., the third chapter of the standard method of transmission related to digital broadcasting is described as “Over 12.2 GHz, 12.7 G
It corresponds to digital broadcasting among standard television broadcasting, ultra-high frequency broadcasting, and data broadcasting performed by a broadcasting satellite station using radio waves of frequencies below Hz. " In this digital broadcast, the program guide is multiplexed with video and audio signals and transmitted.
An EPG (Electronic
Program Guide) method.

Further, this digital broadcast receiver uses a PSTN (Public Subscriber Tel) for transmitting billing information relating to a pay program to the center equipment of a broadcaster.
phone Network) communication function.

[0005]

In this type of conventional receiver, in order to display the EPG screen, the viewing of the program must be temporarily interrupted. For this reason, the same information as the EPG screen is displayed. There is a request to print on paper.

[0006] In response to this request, the conventional receiver cannot respond to the need of the viewer to print the EPG screen on paper and read it.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and aims at connecting a currently used facsimile to a receiver so that the EPG can be used as a facsimile as before. An object of the present invention is to provide a receiver capable of transmitting a screen to a facsimile and printing the image by facsimile.

[0008]

In order to solve the above-mentioned problems, a receiver according to the present invention receives and demodulates a broadcast / communication signal in which video, audio, data and the like are encoded, multiplexed and modulated. Receiving means; demultiplexing means for separating a desired signal from a signal demodulated by the receiving means; decoding means for decoding video and audio signals separated by the demultiplexing means; and processing of input from a user User input processing means, control means for controlling them, color data conversion means for performing color data conversion of the output of the decoding means, image data storage means for storing image data after color data conversion,
Facsimile coding means for performing facsimile coding on the output of the color data conversion means, a first telephone line terminal, a second telephone line terminal, an output of the facsimile coding means, etc. A telephone modulating / demodulating means for modulating and demodulating an input signal from the first telephone line terminal, a first telephone subscriber circuit, a second telephone subscriber circuit, Subscriber circuit control means for controlling a second telephone subscriber circuit, and an input / output signal for the telephone modem,
First switching means for switching to the first telephone subscriber circuit, and input / output signals to / from the second telephone line terminal;
A second switching unit for switching between the first telephone line terminal and the second telephone subscriber circuit, wherein the control unit performs color data conversion and image data conversion based on a signal from the user information processing unit; And facsimile coding and modulation of the coded data are performed at the same time, the first switching means is switched to the first subscriber circuit side, and the second switching is performed. Switching means is switched to the second subscriber circuit side, and the subscriber circuit control means transmits a signal from the first subscriber circuit to the second subscriber circuit according to a signal from the user information processing means. Control to transmit.

In order to solve the above-mentioned problem, a receiver according to the present invention further combines an OSD data generating means for generating OSD data, an output of the decoding means, and an output of the OSD data generating means. Having OSD synthesis means,
The OSD data generating means generates OSD data serving as a program guide from the service information separated by the demultiplexing means, and the OSD synthesizing section outputs the OSD data according to a signal from the user information processing means. To display the program guide.

[0010]

Embodiments of the present invention will be described below.

FIG. 1 is a diagram showing an embodiment of a digital broadcast receiver.

In FIG. 1, 10 is a digital broadcast receiver, 11 is an antenna input terminal, 12 is a tuner, 13
Is a demultiplexer, 14 is a video decoder, 30 is an OSD
A data generation unit, 31 an OSD synthesis unit, 15 a display output unit, 16 a CRT, 17 a CPU, 18 a memory,
2 is a user input processing unit, 19 is a color data conversion unit, 20 is a memory, 21 is a facsimile encoding unit, 23 is a modem circuit, 32 and 40 are modular jacks, 35 is a telephone line, 33 and 39 are switches, and 34 is Load circuit, 36, 3
8 is a subscriber circuit, and 37 is a subscriber circuit control unit.

In FIG. 1, a BS-IF signal input from an antenna input terminal 11 is demodulated by a tuner 12, and is output from an MPEG (Moving Picture Expert Group, ISO / IEC1).
3818-1, 2, 3, 7) TS (Transport Stream) packets are output.

[0014] The TS packet is separated into a video stream and service information by the demultiplexer 13 and output to the video decoder 14 and the OSD data generator 30. The video stream is decoded by the video decoder 14 into pixel data, while the service information is converted by the OSD data generation unit 30 into OSD data serving as a program guide. The OSD synthesizing unit 31 normally outputs the pixel data to the display output unit 15 as it is. The display output unit 15
By outputting the drive signal and the video signal to the CRT 16, the viewer can watch the program. Modular jack 32
Is connected to the telephone line 35, and the digital broadcast receiver 10 transmits, to the charging management center, charging information and the like when the viewer views the pay program. For this reason,
The modem circuit side contact in the switch 33 is connected to the modular jack 32 side, and the modem circuit 23 is connected to the telephone line 35.
The load circuit side contact is not connected to the modular jack 32 side, but is not connected. The load circuit 34 is a load for the telephone line 35 equivalent to an off-hook state of the telephone. To the modular jack 40, any of a facsimile at home, an answering machine, and the like is connected. For this reason, normally, the switch 39 is
Connected to the modular jack 32 side, a facsimile or the like can be used. When a signal requesting display of a program guide is input from the user input processing unit 22 to the CPU 17 by a viewer's remote control operation, the CPU 17
The OSD data generation unit 30 sends the OSD
The SD data is combined with the pixel data. As a result, the viewer can see the program guide on the CRT. This function can be used in electronic program guides (EPG, Electronic Program Guide).
ide).

FIG. 2 shows an example of the EPG screen.

In FIG. 2, 50 is an EPG screen, 51 is a 200-channel program table, 52 is a 201-channel program table, 53 is a 210-channel program table, and 54 is a 21-channel program table.
55 is a 220-channel program table.

A program table as shown in FIG. 2 is displayed by the EPG function. To display the EPG screen,
You have to stop watching the program once.
There is a request to print the same information as the EPG screen on paper. If you can print, you can watch the program table while watching the program.

FIG. 3 shows an example of the remote controller.

In FIG. 3, reference numeral 70 denotes a remote control, 72 denotes a menu button, 79 denotes a program guide button, 71 denotes an enter button, 73 denotes an up / down button, 74 denotes a left / right button, 77 denotes a return button, 75 denotes a numeric keypad, and 76 denotes a capture button. It is.

The operation for displaying the EPG screen is as follows.
This is done by pressing the program guide button 79. In FIG. 1 again, while the EPG screen 50 of FIG. 2 is displayed on the CRT 16, the viewer presses the capture button 76 of the remote controller of FIG.
When a signal requesting capture of a display image is input to the color data conversion unit 19, the color data conversion unit 19 stores the image signal for one frame from the OSD synthesis unit 31 in the memory 19.
To memorize.

Next, when a signal requesting printing is input from the user input processing unit 22 to the color data conversion unit 19 and the facsimile encoding unit 21 by a viewer's remote control operation, the color data conversion unit 19 The luminance / color difference data (Y, C data) for one frame stored in the memory 20 is converted into monochrome binary image data. The facsimile encoding unit 21 encodes the binary image data according to a facsimile encoding procedure, and outputs the encoded data to the modem circuit 23. This encoding is performed, for example, by using the terminal characteristics of a group 3 facsimile apparatus (CCITT SGVIII T.4 recommendation, 1
988). Modem circuit 23
Transmits the facsimile data of the facsimile encoding unit 21 in a procedure according to the facsimile transmission procedure. This procedure is, for example, a document facsimile transmission procedure in the general switched telephone network (CCITT SGVIII T.30 Recommendation, 1
988). Further, the modem circuit 23 modulates the facsimile data and outputs it to the switch 33.

Here, the contact of the switch 33 on the modem circuit side is switched from the normal state to the subscriber circuit 36 side, and the modulated signal is input to the subscriber circuit 36, and the telephone line 35 is connected to the load circuit 34. Connected, the load circuit side contact switches from the steady state to the modular jack 32 side,
At the same time, the switch 39 switches the subscriber circuit 3 from the normal state.
Switch to 8 side. The subscriber circuits 36 and 38 are connected to the telephone, supply DC current to the telephone, detect off-hook and on-hook of the telephone, generate a call signal to the telephone, and
This is a circuit that performs line / four-line conversion. More specifically, an LSI which can be used as an analog subscriber circuit for a private branch exchange can be used. The subscriber circuit 36 detects that the modem circuit 23 has gone off-hook, changes from the standby state to the closed loop state, and notifies the subscriber circuit controller 37 of the off-hook detection. The subscriber circuit controller 37 controls the subscriber circuit 38 to generate a call signal. Thus, the facsimile connected to the modular jack 40 is called. When the facsimile responds, the subscriber circuit 38 detects off-hook and notifies the subscriber circuit controller 37. Subscriber circuit controller 37
Causes the subscriber circuits 36 and 38 to perform two-wire / four-wire conversion, so that the modem circuit 23 and a facsimile connected to the modular jack 40 can communicate with each other. As a result, the EPG screen 50 is printed by facsimile. When the printing is completed, the facsimile and the modem circuit 23 end the transmission according to the transmission control procedure. The subscriber circuit controller 37 receives the on-hook detection signal from each of the subscriber circuits 36 and 38,
38 is changed from the closed loop state to the standby state. Then, the subscriber circuit controller 37 notifies the CPU 17 of the completion of the data transmission, and the CPU 17 returns the switches 33 and 39 to the normal state.

With the above operation, the EPG screen can be printed by facsimile.

In the above description, the transmission of an EPG screen to a facsimile has been described. However, it is also possible to capture an image of a video in a normal program and transmit it as a black and white still image to the facsimile. Keep it.

Also, while the modem circuit 23 and the facsimile in the above operation are in a communication state, a load circuit 34 is connected to the modular jack 32, and the telephone line side is in a busy state. ing. Therefore, even if the modem circuit 23 transmits a call to the facsimile while the EPG screen is being transmitted to the facsimile, the call is processed as busy and no call loss occurs.

Hereinafter, a second embodiment of the present invention will be described.

FIG. 4 is a diagram showing one embodiment of the digital broadcast receiver.

In FIG. 4, 10 is a digital broadcast receiver, 11 is an antenna input terminal, 12 is a tuner, 13
Is a demultiplexer, 14 is a video decoder, 30 is an OSD
A data generation unit, 31 an OSD synthesis unit, 15 a display output unit, 16 a CRT, 17 a CPU, 18 a memory,
2 is a user input processing unit, 42 is a color data conversion unit, 20 is a memory, and 43 is a JPEG (Joint Photographic coding).
Expert Group) encoding unit, 41 is a color facsimile encoding unit, 23 is a modem circuit, 32 and 40 are modular jacks, 35 is a telephone line, 33 and 39 are switches, 34
Is a load circuit, 36 and 38 are subscriber circuits, and 37 is a subscriber circuit control unit.

The difference from the first embodiment will be described. A color facsimile is connected to the modular jack 40 of the digital broadcast receiver 10 so that it can be used. Then, the viewer's digital broadcast receiver 10
When a signal requesting printing is input from the user input processing unit 22 to the color data conversion unit 42 and the color facsimile encoding unit 41 by a remote control operation on the color data conversion unit 42, the color data conversion unit 42 One frame of luminance / color difference data (Y, C data) is converted to color print data (for example, CMY data,
(Cyan, Magenta, Yellow). The JPEG encoder 43 compresses the color print data because it is too large for the bit transmission speed of the public telephone network. This encoding algorithm is based on ITU-TT. 81
Compliant. The color facsimile encoding unit 41
According to the facsimile encoding procedure, JPEG data is
It is encoded and output to the modem circuit 23. This encoding is a G3 facsimile encoding procedure, ITU-T
T. 30 AnnexE and T.I. 4 Annex I (1
(September 994). (In the case of G4 facsimile, ITU-T T.503 Annex B) Because of this operation, it is possible to print the EPG screen on a color facsimile.

In the above description, transmission of an EPG screen to a facsimile has been described. However, it is possible to capture an image of a video in a normal program and transmit it as a color still image to a color facsimile. I will add it.

[0031]

According to the present invention, an EPG screen can be printed by a facsimile at home, so that a receiver capable of printing the latest program information without requiring a special printing device can be provided.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing an EPG screen according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a remote controller according to the first embodiment of the present invention.

FIG. 4 is a block diagram illustrating a configuration of a digital broadcast receiver according to a second embodiment of the present invention.

[Explanation of symbols]

10 digital broadcast receiver, 11 antenna input terminal,
12 Tuner, 13 Demultiplexer, 14 Video decoder, 30 OSD data generator, 31 OSD synthesizer, 15 Display output unit, 16 CRT, 17 CP
U, 18: memory, 22: user input processing unit, 19:
Color data converter, 20 memory, 21 facsimile encoder, 23 modem circuit, 32, 40 modular jack, 35 telephone line, 33, 39 switch, 3
4 ... Load circuit, 36, 38 ... Subscriber circuit, 37 ... Subscriber circuit control unit,

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) H04N 5/44 H04N 5/445 Z 5C075 7/14 5C077 5/445 1/46 Z 5C079 7/025 1 / 40 D 7/03 7/08 A 7/035 7/14 (72) Inventor Shigeru Yoneda 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Japan Digital Media Development Division, Hitachi, Ltd. (72) Inventor Takahiro Sato Kanagawa 292 Yoshida-cho, Totsuka-ku, Yokohama, Japan Inside Digital Media Development Division, Hitachi, Ltd. (72) Inventor Kenji Katsuta 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture 5B057 AA20 BA28 CA01 CA02 CA06 CB01 CB02 CB06 CC01 CE16 CE18 CH18 5C025 BA14 BA25 CA09 CA15 CB05 CB06 DA01 5C056 AA05 BA02 EA05 5C063 AB0 3 AC02 CA23 CA29 CA34 DA03 DA09 EB03 EB33 EB43 5C064 AA01 AC08 AC12 AD02 AD08 AD09 AD14 5C075 AB06 BA05 CF09 5C077 MP08 NP02 PP31 PP33 PP34 PQ01 RR21 SS06 5C079 HA02 HB02 HB04 HB11 LA27 LA01 LA40

Claims (8)

[Claims] And receiving encoded and modulated video data.
Receiving means for demodulating, decoding means for decoding video data received and demodulated by the receiving means, and performing color data conversion or color and luminance data conversion on the video data decoded by the decoding means Color data conversion means, coding means for performing coding in a predetermined format on video data converted by the color data conversion means, video data coded in a predetermined format by the coding means A transmission means for transmitting the data to an external terminal according to a predetermined transmission procedure. 2. The receiver according to claim 1, further comprising display means for displaying the video data decoded by said decoding means. 3. The method according to claim 1, wherein the predetermined method is a facsimile method, the predetermined transmission procedure is a facsimile transmission procedure, and the external terminal is a facsimile apparatus. The receiver described. 4. The receiver according to claim 1, wherein the video data is data relating to a program guide. 5. A receiving means for receiving and demodulating a broadcast / communication signal in which video, audio, data, etc. are encoded and multiplexed, and separating a desired signal from the signal demodulated by said receiving means. Demultiplexing means; decoding means for decoding the video and audio signals separated by the demultiplexing means; user input processing means for processing input from a user; control means for controlling these; and output of the decoding means Color data conversion means for performing color data conversion or color and luminance data conversion, image data storage means for storing image data after color data conversion by the color data conversion means, and for the output of the color data conversion means, Facsimile coding means for performing facsimile coding, a first telephone line terminal, a second telephone line terminal, and an output of the facsimile coding means. Telephone modulating / demodulating means for modulating according to a facsimile transmission procedure and demodulating an input signal from the first telephone line terminal; a first telephone subscriber circuit; a second telephone subscriber circuit; And a subscriber circuit control means for controlling a second telephone subscriber circuit; and an input / output signal to / from the telephone modem means for switching between the first telephone line terminal and the first telephone subscriber circuit. A switching means for switching the input / output signal to / from the second telephone line terminal to the first telephone line terminal or the second telephone subscriber circuit. The control unit may perform color data conversion, storage of image data in the image data storage unit, facsimile encoding, and modulation of encoded data by a signal from the user input processing unit. same Sometimes, the first switching means is switched to the first subscriber circuit side, and the second switching means is switched to the second subscriber circuit side. A receiver for controlling transmission of a signal from the first subscriber circuit to the second subscriber circuit by a signal from the means. 6. The receiver according to claim 5, further comprising: OSD data generating means for generating OSD data; and OSD synthesizing means for synthesizing an output of said decoding means and an output of said OSD data generating means, The OSD data generating unit generates OSD data serving as a program guide from the service information separated by the demultiplexing unit, and the OSD synthesizing unit outputs the OSD data according to a signal from the user input processing unit. A receiver characterized by displaying a program guide. 7. A receiving means for receiving and demodulating a broadcast / communication signal in which video, audio, data, etc. are encoded and multiplexed, and separating a desired signal from the signal demodulated by said receiving means. Demultiplexing means; decoding means for decoding the video and audio signals separated by the demultiplexing means; user input processing means for processing input from a user; control means for controlling these; and output of the decoding means Color data conversion means for performing color data conversion or color and luminance data conversion, image data storage means for storing image data after color data conversion by the color data conversion means, and for the output of the color data conversion means, Image processing means for compressing image information, color facsimile encoding means for performing color facsimile encoding on the output of the image processing means, 1 of the telephone line terminal and a second telephone line terminal, the output or the like of the color facsimile encoding means, according to the procedure of transmitting color facsimile, and modulation, and the first
Telephone modem means for demodulating an input signal from a telephone line terminal of a first telephone subscriber circuit, a second telephone subscriber circuit, and a subscriber controlling the first and second telephone subscriber circuits. Circuit control means; first switching means for switching an input / output signal to the telephone modulation / demodulation means between the first telephone line terminal and the first telephone subscriber circuit; and the second telephone line terminal A second switching unit for switching an input / output signal to the first telephone line terminal or the second telephone subscriber circuit, wherein the control unit includes the user input processing unit. , Color data conversion, storage of image data in the image data storage means, image information compression, color facsimile coding, and modulation of the coded data, and the first switching means. To Switching to the first subscriber circuit side, switching the second switching means to the second subscriber circuit side, the subscriber circuit control means responding to a signal from the user input processing means, A receiver for transmitting a signal from said subscriber circuit to said second subscriber circuit. 8. The receiver according to claim 7, further comprising: OSD data generation means for generating OSD data; and OSD synthesis means for synthesizing an output of said decoding means and an output of said OSD data generation means. The OSD data generating unit generates OSD data serving as a program guide from the service information separated by the demultiplexing unit, and the OSD synthesizing unit outputs the OSD data according to a signal from the user input processing unit. A receiver characterized by displaying a program guide.