JP2001275063A - Receiving device and system using the same - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A plurality of persons can share a digital broadcast receiver from different places, and a plurality of persons can enjoy a video program or a data broadcasting service at their own preference and anywhere. To be seen. A receiving unit that receives a broadcast signal, a recording and reproducing unit that records and reproduces the broadcast signal received by the receiving unit, and an interface that converts and outputs the broadcast signal reproduced by the recording and reproducing unit Unit, the interface unit distributes the broadcast signal to a plurality of external devices, and receives a request from a plurality of external devices, the recording and reproducing unit performs recording according to the request, and the A receiving device that reproduces according to a request, and receives a desired signal from broadcast signals distributed from the interface unit,
A plurality of external devices for sending a request to the interface unit are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital broadcast receiving apparatus, and more particularly to a digital broadcast receiving apparatus capable of receiving different broadcasts from different places at different times, and a system using the same. Get involved.

[0002]

2. Description of the Related Art In BS digital broadcasting scheduled for 2000, in addition to a broadcasting service for providing a video program of 7 channels of digital HDTV or 24 channels of digital programs of normal broadcast quality using eight channel carriers from satellites, A data broadcasting service that provides information related to a video program and an independent data information screen not related to the video program is planned.

[0003]

The present data broadcast is inserted between video program data packets, and is similar to the data broadcast inserted during the vertical retrace period of analog television broadcasting. For a small data amount of 30 to 40 kbps, this data broadcast is 1.5 to 4 Mbps.
It is a high-speed and large-volume data service that is about 100 times as fast as ps, and provides a high-quality display on the data screen using BML or XML, which exceeds the HTML often used on the Internet.

That is, a viewer receives and views many data services in addition to many channel video programs. But,
This service is broadcasting, and provides a large amount of data in one direction from satellites to many homes at low cost in real time. Most services are transient and are overlooked and disappear. Data broadcasting services include those that are repeatedly transmitted, but these are also changed every day or every week, so if they are not caught well, they will be overlooked.

[0005] Therefore, a receiver has a large-capacity recording device to record a video program or to record a desired data broadcast for later viewing. However, the family's wishes for many programs and many services have become diverse, making it difficult to watch many recordings and many data records at the time of each family member's favorite, and expensive receivers have been installed at home. There is a problem that requires multiple units.

[0006]

In order to solve the above problems, a system according to the present invention comprises a receiving section for receiving a broadcast signal, and a recording / reproducing section for recording and reproducing the broadcast signal received by the receiving section. And an interface unit for converting and outputting the broadcast signal reproduced by the recording / reproducing unit, the interface unit distributing the broadcast signal to a plurality of external devices, and requesting from a plurality of external devices. Receiving, the recording and reproducing unit performs recording according to the request, and receives a desired signal from broadcast signals distributed from the interface unit, and a receiving device that reproduces according to the request, A plurality of external devices for sending a request to the interface unit are provided.

According to the present system, a plurality of persons can share a digital broadcast receiver from different places, and a plurality of persons can watch a video program or a data broadcasting service every time when they want to watch the program according to their preferences. Become like

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing a receiver according to the present invention and its home configuration. The receiver 1 includes a BS digital receiving unit 2, a storage unit 3 having a hard disk for storing and recording (hereinafter abbreviated as HDD), an output interface unit 4, an overall control unit 5, and a modem 6 used for an uplink line or the like. Furthermore, by connecting the first television 11, the second television 16, and the first PC 17 as external devices to the receiver 1, the system of the present invention is established. Note that the second television 16 and the first PC 17 have terminals 12 and 13 for transmitting and receiving information bidirectionally with the receiver 1, respectively.

The BS digital signal received by the antenna 7 is selected, demodulated and decoded by the BS digital receiver 2 of the receiver 1 to obtain a desired video program and data broadcast content. It is transmitted to the first television 11 and viewed.

A plurality of video programs and a plurality of data broadcast contents decoded by the BS digital receiving section 2 are recorded and stored in the HDD of the storage section 3, and the plurality of video programs are transmitted from the HDD in response to a desired reproduction request. And high-speed playback of multiple data broadcast contents. The reproduction signal data is transmitted from the output terminals 9 and 10 to the terminals 12 and 13 via the optical fibers 14 and 15 via the connection interface unit 4. The terminal 12 extracts a desired video program or data broadcast content from the reproduction signal data, converts it into a television signal, and views it on the second television 16. The terminal 13 extracts a desired video program or data broadcast content from the reproduced signal data, converts the content into a desired video signal or data, and views the same on the first PC 17. Each of the terminals 12 and 13 receives a request for reservation and reproduction of a program or content data to be watched, transmits the request to the receiver 1 via the optical fibers 14 and 15, and the control unit 5 of the receiver 1 sets the reception reservation. , And controls recording reservation and reproduction output. Also, the first television viewer sends a reservation recording or reproduction request to the control unit of the receiver 1 directly from the remote controller 18, and the switching means 19 receives the request for directly viewing the BS digital broadcast as an input to the output terminal 8. By switching between the signal and the reproduction signal from the storage unit 3, the viewer of the first television 11 can freely view and listen to direct reception and reservation recording / reproduction. On the other hand, the second television 16 and the first P
The viewer at C17 can freely watch the recording / reproduction. Although the viewers of the second television 16 and the first PC 17 cannot directly receive and view the BS digital broadcast,
By using scheduled recording / playback, playback can be performed instantaneously from the start of recording, and playback can be performed while recording, so that viewing can be performed in almost the same environment as when receiving directly, and free viewing such as pause can be performed.

The receiver 1 is connected to the public line 20 via the modem 6, and each viewer issues a request from the remote controller 18 or the terminals 12 and 13 to participate in shopping for data broadcasting and voting for video programs. You can also participate in interactive services such as. Thereby, not only the first television 11 connected to the receiver 1 but also the second television 16 and the first PC 17
But you can enjoy the latest digital broadcasts anytime, anywhere in your home.

That is, the present receiver includes: a recording / reproducing means for recording and accumulating at least received video program and data broadcast content data, and reading and reproducing a plurality of video programs and data broadcast content data at a high speed; A connection interface means for transmitting data recorded and reproduced at high speed to a plurality of televisions and PCs is required. The connection interface means has a function of receiving requests for reservation recording / reproduction from a plurality of terminals into a receiver, that is, a bidirectional function. It is necessary to have the function of

This is similar to the video-on-demand mechanism for delivering an arbitrary recorded program from the storage means to each room, but is a home-use receiver, and uses a receiver for pre-recording and direct-viewing. It is completely different in that it has an output terminal that can be used for both the function and the function of recording / playback. A receiver having an analog TV broadcast receiver, a hard disk, and a modem is also considered, but it has the function of simultaneously playing back multiple videos, the function of distributing it to a TV or PC, and the use of multiple external terminals for scheduled recording and scheduling. There is no function to accept playback and communication.

FIG. 2 is a diagram showing a detailed configuration of the receiver shown in FIG. The BS digital receiving unit 2 may decode the received video program and output the decoded video program to the first television 11 or may output the decoded video program to the storage unit 3. The storage unit 3 includes a file management unit 22 for controlling recording and an HDD 23 as a recording medium. HDD
When the video recording format for the TS 23 is a transport stream (hereinafter abbreviated as TS), the received signal from the BS digital receiving unit 2 is directly written to the HDD 23 via the file management unit 22 of the storage unit 3. On the other hand, the HDD 23
If the video recording format to the is a program stream (hereinafter abbreviated as PS), the signal decoded by the BS digital receiving unit 2 is converted to the PS format by the MPEG encoder 21 and recorded by the storage unit 3. The data broadcast information is transmitted from the BS digital receiving unit 2 to the control unit 5, is supplied as screen information from the control unit 5 to the file management unit 22 of the storage unit 3, and is recorded on the HDD 23. The video program data and data broadcast information data read from the storage unit 3 are output to the connection interface unit 4. Here, IEEE 1394 is used as the connection interface format. In the IEEE 1394 format, video data is handled in the TS format. Therefore, if the storage format of the HDD 23 is TS, the data read from the storage unit 3 is directly converted to the IEEE 1394 format by the 1394 conversion unit 25, and further, the optical / electrical conversion unit. The signal is modulated at 26 and output. HDD
If the storage format of the H.23 is PS, 1394
Before the conversion by the conversion unit 25, the conversion from PS to TS by the format conversion unit 24 is required. The optically / electrically converted data is transmitted to the terminal 12 via the optical fibers 14A and 15A.
And 13 are transmitted. Here, since IEEE1394 is a bidirectional format, a pair of fibers A and B is used for the optical fibers 14 and 15, respectively. On the other hand, the request information from the terminals 12 and 13 is
Via B, it is transmitted to the 1394 converter 25 via the optical / electrical converter 26 and is sent to the controller 5 from here. The control unit 5 sets the BS according to the request information.
By controlling the digital receiving unit 2, the modem 6, the file management unit 22 of the storage unit 3, and the like, reservation, recording and reproduction of desired programs and data and communication using the modem are performed. In this figure, the connection of control from the control unit 5 to the BS digital receiving unit 2, the modem 6, the MPEG encoder 21, the MPEG decoder 27, the switching unit 19, and the like is omitted for the sake of simplicity. I do. In addition, in the first television 11, in addition to the viewing of the directly received program, the 1394 conversion unit 25 sends the MPE
A recording / playback television signal is supplied to the switching unit 19 via the G decoder 27.

FIG. 3 is a diagram showing a detailed configuration of the terminal of the present invention. The video program and the content data of the data broadcast transmitted to the terminal 12 via the optical fiber 14A are input light /
The optical / electrical conversion is performed by the electric conversion unit 28 and the IEEE 1394
It becomes an electric signal of the format, and 13
The 94 converter 29 takes in only the data related to the terminal itself. The video program data is stored in the MPEG decoder 3
0, it is decoded into a TV signal and transmitted to a TV or PC,
The screen information data of the data broadcast is added to the output of the MPEG decoder 30 via the control unit 31 or the output of the MPEG decoder 30 is switched to change the TV or PC
Is transmitted to Further, information on reservation, recording, reproduction and transmission from the remote controller 32 of the terminal 12 is transmitted from the control unit 31 to the receiver via the 1394 conversion unit 29, the optical / electrical conversion unit 28, and the optical fiber 14B. That is, the optical / electrical converter 28 and the 1394 converter 29 have a bidirectional function. As described above, by using the receiver shown in FIG. 2 and the terminal shown in FIG. 3, it is possible to construct a system in which reservation, recording, reproduction, and communication can be performed in real time from a plurality of external devices, and a favorite program can be viewed anytime and anywhere. .

FIG. 4 is a diagram showing another receiver of the present invention and its home configuration. Television reception environments at home include not only satellites but also terrestrial broadcasting and CATV. Therefore, this receiver is provided with a terrestrial broadcast receiving unit 33,
CATV set-top box (hereinafter abbreviated as STB)
34, a system for receiving all broadcasts at home can be constructed. Here, a remote control conversion unit 35 is arranged near the remote control light receiving unit of the external STB 34 and can be controlled in the same manner as the built-in receiver by controlling with the controller 5 of the receiver.

FIG. 5 is a diagram showing a detailed configuration of the receiver shown in FIG. If the video program signal of the BS digital receiving unit 2, the video program signal of the terrestrial broadcast receiving unit 33, and the video program signal from the CATV STB are converted into a unified format by the MPEG encoder 21, reserved recording of each broadcast can be performed.

Here, since there is only one BS digital receiving unit 2, recording reservation cannot be made in the time zone in which the BS digital broadcast is received and directly viewed, and even in the case of not directly viewing, the reservation in the same time zone is one. Limited to programs. In order to solve this, a configuration may be adopted in which a back-end recording can be performed by adding a BS digital receiving unit. It is also effective to increase the number of HDDs by increasing the recording time. For the present invention, BS
Although the application to digital broadcasting has been mainly described, the invention is not limited to this, and application to digital broadcasting in general is possible. For example, digital broadcasting is also planned in terrestrial broadcasting, and even in a receiver having only a terrestrial digital broadcasting receiving unit,
It is clear that a receiver having a satellite and a terrestrial digital broadcast receiving unit has the same effect with the same configuration.

Further, in the above embodiment, an optical fiber by optical conversion is used for output distribution. However, the present invention is not limited to this, and a configuration as shown in FIGS. 6 and 7 can be adopted. That is, as shown in FIG. 6, the receiver uses a wireless RF conversion / reception unit 36 and an antenna 37 instead of the output optical / electric conversion unit, and as shown in FIG. , Antenna 4 instead of the input optical / electrical converter
The same effect can be obtained by using 0 and the RF reception / conversion unit 41. F1 for RF output from receiver
, And the RF output from the terminal uses frequencies f2 and f3 different from f1 to easily realize two-way communication.

If f1, f2, and f3 are used in frequency hopping and spread spectrum, they can be used in the same frequency band.

In the present invention, an HDD is used as a storage medium of the receiver. This is the only medium at present that can realize this receiver and this home system, but it is not limited to this, and if the recording capacity increases and high-speed write / read drive becomes possible, it can also be recorded in semiconductor memory. It can be applied to a recording medium such as a simple DVD.

[0022]

By using the receiving apparatus of the present invention and a system using the same, different people can obtain digital broadcasting data anytime and anywhere according to their preferences.

[Brief description of the drawings]

FIG. 1 is a diagram showing a receiver according to the present invention and its home configuration.

FIG. 2 is a diagram illustrating a detailed configuration of the receiver in FIG. 1;

FIG. 3 is a diagram showing a detailed configuration of a terminal of the present invention.

FIG. 4 is a diagram showing another receiver of the present invention and its home configuration.

FIG. 5 is a diagram illustrating a detailed configuration of the receiver in FIG. 4;

FIG. 6 is a diagram showing a detailed configuration of a receiver according to the present invention.

FIG. 7 is a diagram showing a detailed configuration of a terminal of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Receiver, 2 ... BS digital receiving part, 3 ... Storage part, 4 ... Connection interface part, 5, 31 ... Control part, 6 ... Modem, 7 ... Antennas, 8, 9, 10
... Output terminals, 11, 16 ... TV, 17 ... PC, 1
2, 13, 38, 39 ... terminal, 14, 15 ... optical fiber, 18, 32 ... remote control, 19 ... switching unit, 20
... Public network, 21 ... MPEG encoder, 22 ... File management unit, 23 ... HDD, 24 ... Format conversion unit, 25, 29 ... 1394 conversion unit, 26, 28 ... ·light/
Electrical converter, 27, 30 ... MPEG decoder, 33 ...
Terrestrial broadcast receiving unit, 34 CATV-STB, 35 remote control conversion unit, 36, 41 RF conversion / receiving unit, 3
7, 40 ... antenna

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/781 H04N 5/92 H 5/92 7/08 A 7/025 7/03 7/035 F term (Reference) 5C025 AA23 AA28 BA01 BA28 CA09 CB03 CB05 CB08 CB09 DA04 DA08 5C052 AA01 AB04 AC08 DD04 DD10 EE02 5C053 FA20 FA23 FA29 FA30 GB06 GB12 HA29 JA16 KA05 LA06 LA07 LA14 5C063 AB03 AC01 AC10 DA03 DA13

Claims (7)

[Claims] A receiving unit that receives a broadcast signal; a recording / reproducing unit that records and reproduces the broadcast signal received by the receiving unit; and a broadcast signal that is reproduced by the recording / reproducing unit is output. An interface unit, the interface unit distributes the broadcast signal to a plurality of external devices, receives a request from a plurality of external devices, the recording / reproducing unit performs recording according to the request, and A receiving device that reproduces data according to the request. 2. The receiving device according to claim 1, wherein said interface unit comprises a format converter, a 1394 converter, and an optical / electrical converter. 3. The receiving apparatus according to claim 1, wherein said interface unit comprises a format conversion unit, a 1394 conversion unit, and a radio conversion unit. 4. The receiving device according to claim 1, wherein a hard disk is used for said recording / reproducing unit. 5. The receiving device according to claim 1, wherein the broadcast signal is output from the receiving unit or output from the recording / reproducing unit. 6. A receiving section for receiving a broadcast signal, a recording / reproducing section for recording and reproducing the broadcast signal received by the receiving section, and converting and outputting the broadcast signal reproduced by the recording / reproducing section. An interface unit, the interface unit distributes the broadcast signal to a plurality of external devices, and receives a request from a plurality of external devices, the recording and reproducing unit performs recording in accordance with the request, and A receiving device that reproduces in accordance with the request; and a plurality of external devices that receive a desired signal from broadcast signals distributed from the interface unit and that send a request to the interface unit. A system using a receiving device as a feature. 7. An external device according to claim 1, wherein said plurality of external devices are IEEE 139.
7. The system according to claim 6, further comprising a quadrature converter, an MPEG decoder, and a controller.