CN1738384A - Digital satellite television receiver and its method for receiving programme guide information - Google Patents
Digital satellite television receiver and its method for receiving programme guide information Download PDFInfo
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- CN1738384A CN1738384A CN 200410053898 CN200410053898A CN1738384A CN 1738384 A CN1738384 A CN 1738384A CN 200410053898 CN200410053898 CN 200410053898 CN 200410053898 A CN200410053898 A CN 200410053898A CN 1738384 A CN1738384 A CN 1738384A
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Abstract
The invention relates to a digital satellite television receiver, concretely relating to the digital satellite television receiver and the method for using it to control the storage of EPG (program guide information). The device comprises following three units: a multiplexer which receives signals and divides the digital satellite television signal operated by noise reducing and amplified in RF band into several signals to be output in every path; a main unit which inputs aforementioned output multi-path satellite signals, detunes every special channel to output in TP mode, and stores the program guide information which can be transmitted when the special sub-element applies the program guide information; and a plurality of sub-elements mounted in each independent space without satellite tuner inside which can receive the TP signal of relative channel output from aforementioned main unit and operate the decoding, detuning and playing, as well as receive the program guide information from the main unit to be searched and viewed.
Description
Technical field
The present invention relates to receive the receiver of digital satellite television.Specifically, the present invention relates to the master unit of tuning multi channel at the same time and be installed in the system of subelement of the tuning channel that has nothing in common with each other in a plurality of spaces, set the digital satellite television receiver and the performance guide information method of reseptance of each subelement EPG data by master unit respectively.
Background technology
Digital satellite television is after the 94 years U.S. develops DIRECTV (instruction TV) at first, and ground such as Europe, Japan, Asia, Africa are arrived in bamboo telegraph, and digital satellite television can both be watched in all parts of the world now.This digital satellite television is to utilize common MPEG2 specification with image/sound/additional data compression, transmits with digital form via satellite.Compare with other transmission mediums, satellite is wide because of having the covering area scope, and is irrelevant with the area, has equal rating quality, and the satellite television net is constructed characteristics such as both economical, that satellite channel is simple, is being widely used, and mainly charged the TV operator and dominates.
Be used to watch that the receiver that above-mentioned digital satellite television is relayed adopts CAS (ConditionalAccess System) to limit, make and have only application to watch that the spectators of pay TV just can receive program.
Above-mentioned CAS is that a kind of smart card (Smart Card) that uses in receiver is controlled the free satellite television of reception, basic channel charging channel (Pay Per Channel:PPC), paid TV programme that Radio, Film and Television Administration carried and the data, services signals such as (Pay Per View:PPV) accepted in addition, whether control received signal, whether management accepts the system of the service of transmitting.PPC is meant that the expense of watching of paying defined just can watch the service of the channel of being applied for, PPV is meant by the service of watching that Pgmtime is charged.CAS publisher issues smart card to the entrant, here the smart card CAM (Conditional Access Module) that is otherwise known as.
Illustrate, above-mentioned smart card is meant the channel information that the user that stores in the memory can watch under the situation of charging channel, be meant under the situation of PPV and watch quantity information.
Above-mentioned PPV service allows the user to purchase film or the sports tournament that will watch in advance, and the user can buy by smart card and watch program with compensation.
Therefore, under the situation of restriction receiving system user or receiver requirement, can extract smart card institute canned data, smart card has the function of understanding transmission signals, for the TV programme of watching transmission provides required condition.
Simultaneously, in above-mentioned digital satellite television, not only include program, but also comprised the guide information of program simultaneously, above-mentioned performance guide information is called as APG (Advanced Program Guide) in the digital satellite television as DIRECTV, be called as EPG (Electronic Program Guide) in the earthwave Digital Television.
But above-mentioned performance guide information is that bigger additional data easily is provided when seeing TV for spectators, and its existing problem is that spectators must just can obtain the program of playing and will playing in the future now by other guide medium such as newspapers.
Summary of the invention
Thereby for solving aforesaid existing problem, the present invention just arises at the historic moment.The purpose of this invention is to provide the digital satellite television receiver of the digital television receiver with a plurality of unit sets other subelements by master unit EPG data and utilizes the performance guide information method of reseptance of this receiver.
For achieving the above object, the digital satellite television receiver that designs according to a feature of the present invention has following constitutive characteristic: received signal, and will be divided into through the digital satellite television signal of the RF of low noise amplification bandwidth a plurality of, by the multiplexing unit of each path output; The multiple-link satellite signal that input is exported through each path from above-mentioned multiplexing unit, and each specific channel of tuning demodulation, with the output of TP form, adaptively storing program guide information, when particular sub-unit application program guide information, it can be transmitted master unit in the past; Be installed in each separate space respectively, inside does not have satellite tuner, receives from the TP signal of the channel correlation of above-mentioned master unit output, decodes to be in harmonious proportion and plays, obtain performance guide information from above-mentioned master unit, and it is retrieved a plurality of subelements of watching.
For achieving the above object, according to another feature of the present invention, the performance guide information method of reseptance of digital satellite television receiver of the present invention was made of following each stage: particular sub-unit sends the guide information application message stage to master unit; Read the performance guide information stage of above-mentioned particular sub-unit application from master unit performance guide information data pedestal; The above-mentioned performance guide information that reads out is transferred to above-mentioned subelement, and subelement is watched the performance guide information stage of being transmitted.
If above-mentioned master unit is to be selected point (Access Point:AP) with wireless terrestrial base station, when performance guide information upgrades, above-mentioned master unit can send to subelement with the renewal information of informing, when the subelement application should be upgraded performance guide information, the words that just send were even more ideal.
The environment set of above-mentioned subelement search performance guide information is stored in the above-mentioned master unit, and each subelement can be searched for by kind respectively.
As above illustrated the present invention has following effect: spectators can directly retrieve the program of playing and will playing in the future now, and watch under the situation that does not have other guide media such as newspaper on picture.
Description of drawings
Fig. 1 is the concept map according to multi channel digital satellite television receiver of the present invention;
Fig. 2 is the detailed components figure of master unit among Fig. 1;
The detailed components figure of each subelement among Fig. 3 Fig. 1;
Fig. 4 shows the illustration that utilizes according to digital satellite television receiver application EPG information of the present invention;
Fig. 5 is the EPGDB figure that shows according to master unit in the digital satellite television receiver of the present invention.
* accompanying drawing major part symbol description *
101: satellite antenna 102:LNB
103: multiplexing unit 110: master unit
111: multichannel tuner 112: multi channel TP distributor
113:CPU 114: modulator-demodulator
115:EPG DB 116: main signal receiving and transmitting apparatus
120: subelement 301: the subsignal receiving and transmitting apparatus
302:A/V decoding and control device 303:CAS device
304: memory 305: preceding panel
Embodiment
Below, just according to ideal case of the present invention, formation and effect are described in detail with reference to accompanying drawing.
Fig. 1 is the concept map according to multi channel digital satellite television receiver of the present invention.It is by constituting with the lower part: the antenna 101 of received RF bandwidth digital satellite television signal; To carry out the low noise amplifier (Low Noise Block:LNB) 102 of low noise amplification by the radio frequency bandwidth satellite-signal that above-mentioned antenna 101 receives; The satellite-signal of above-mentioned LNB 102 outputs is divided into a plurality of multiplexing unit 103; Import a plurality of satellite-signals that above-mentioned multiplexing unit 103 is exported, by the multichannel tuner, the channel that requires according to each subelement carries out tuningly respectively, and converts the form of transmitting data stream to, is transferred to the master unit 110 of each subelement; Be installed in each separate space respectively, import specific channel signals respectively, a plurality of subelements 120 that the mediation of decoding is play from above-mentioned master unit 110.
Fig. 2 is the detailed components figure of master unit 110 among Fig. 1.It comprises and by constituting with the lower part: receive satellite RF signals from the above-mentioned multiplexing unit 103 that is made of a plurality of tuners and demodulator 111a-111b, and the channel that requires according to each subelement respectively carry out tuning after, carry out demodulation, and with the multichannel tuner 111 of the form of TP output; For will being transferred to each subelement from the TP signal that each tuner and the demodulator of multichannel tuner 111 are exported, and the multi channel TP distributor 112 that distributes; Whole operations of control master unit, and the central processing unit (CPU) 113 of the data communication between control master unit and each subelement; The TP signal of the master unit that above-mentioned distributor is distributed is input to each subelement respectively or the signal of above-mentioned subelement output is input to CPU113 main signal receiving and transmitting apparatus 116 behind CPU113; According to the application of above-mentioned each subelement, carry out the modulator-demodulator 114 that twocouese is communicated by letter with satellite television forwarding side.
Each tuner in the above-mentioned multichannel tuner 111 and demodulator carry out demodulation to the satellite-signal of tuning in to channels in QPSK (Quadrature Phase Shift Keying) mode, convert the TP form to.
Fig. 3 is the detailed components figure of each subelement among Fig. 1.It is to accept the TP signal from above-mentioned master unit 110, sub-IRD (IntegratedReceiver and Decoder) with original digital picture and audio signal reduction, with the playback equipment of being play by the vision signal of demodulation (for example TV) is connected, it does not wherein have built-in satellite tuner.
Observe Fig. 3 as can be seen, subelement is by constituting with the lower part: receive TP signal that above-mentioned master unit 110 exported or extract the subsignal receiving and transmitting apparatus 301 of the signal that the user applied for from master unit 110; The memory 304 that constitutes by read-only memory and random asccess memory; The CAS device 303 that utilizes smart card the user to be authenticated and decode; The TP signal of above-mentioned subsignal receiving and transmitting apparatus 301 outputs is input to CAS device 303, to become audio signal and vision signal through decoded Signal Separation after decoding, and utilize memory 304 according to the A/V decoding and the control device 302 of related algorithm to audio signal after separating and decoding video signal.For transferring to master unit 110 by the user input signal of remote controller input, above-mentioned A/V decoding and control device 302 output to above-mentioned subsignal receiving and transmitting apparatus 301 with this signal.
In the above-mentioned memory 304 read-only memory shone upon is the various control programs of control sub unit, random asccess memory is the read-write of decoding bit data flow when being used for the A/V decoding, reads the motion compensation desired data, writes decoded data and reads played data.
Each subelement possesses above-mentioned CAS device 303, and the smart card that inserts above-mentioned CAS device 303 in the utilization carries out user's login and authentication, and management establishment information, and ciphered data is decoded.Here the smart card that inserts above-mentioned CAS device 303 is the unified integration smart card (family smart card) that is applicable to each sub-IRD, and this card is counted granting according to the subelement of satellite TV Companies Registry and got.Be that above-mentioned smart card can only be registered with a user name (ID) and password, also can be according to each subelement difference registered user's name and password.For example: if under the situation of only registering a user and password, any one subelement is as long as import this username and password, just can pass through authentification of user.If each subelement is registered user's name and password respectively, the correlator unit has only input its own user name and password just can obtain authentification of user, can protect the fail safe of each subelement like this.
Under the situation of using the full smart card of this system, satellite TV company can share application expenses according to the subelement number of being registered, and provides service for the applicant.
Here, above-mentioned modulator-demodulator 114 is not mounted in each subelement, but only is installed in master unit 110, and the user is to realize by the modulator-demodulator of master unit when transmission of satellite TV company and received signal.Be that above-mentioned master unit 110 is transferred to satellite TV company with the purchase signal of each subelement independently, and its result is transferred to the correlator unit again.
Therefore, each subelement there is no need to install modulator-demodulator, so also can reduce the expense of burden for users.
On the other hand, the remote control control unit that each subelement possesses (for example remote controller) can interact the user with master unit, control, the signal of above-mentioned remote control control unit input is imported into A/V decoding and control device 302 by the preceding panel 305 of each subelement.
Fig. 4 shows that application utilizes the illustration according to digital satellite television receiver EPG information of the present invention.Master unit has EPG DB storage digital program information, and each subelement application EPG information state is described as follows:
Subelement sends the information S100 from master unit application EPG data, and master unit record application EPG data history records is after a period of time, to subelement transmission EPG data S101.
When master unit upgrades the EPG data, if subelement have after the renewal watched EPG in case of necessity, master unit sends the EPG Data Update to subelement and informs information S110.
Above-mentioned subelement sends application EPG Data Update information S111 to master unit, after the master unit of receiving this information upgrades application and subelement application historical record and checks EPG, sends the EPG Data Update information S112 of necessity.
Fig. 5 is the diagram that shows according to master unit EPG DB in the digital satellite television receiver of the present invention.Each subelement EPG information retrieval environment set also is stored in master unit, and each subelement can be retrieved respectively accordingly.
For example: the 1st subelement is set at basic environment with the physical culture in the EPG information (SPORT) kind, and the 2nd subelement can be set at basic environment with news (NEWS) kind.
Each subelement can be distinguished the historical record of search result storage, and can determine the personalization function of each subelement.
By above-mentioned description, the related work personnel can carry out diversified change or modification fully under the prerequisite that does not depart from this invention technological thought scope.Therefore, the technical scope of this invention is not limited to the content that example is put down in writing, and must determine its technical scope according to the scope of patent application.
Claims (5)
1, a kind of digital satellite television receiver is characterized in that, by constituting with the lower part: received signal, and will be divided into through the digital satellite television signal of the RF of low noise amplification bandwidth a plurality of, by the multiplexing unit of each path output; The multiple-link satellite signal that input is exported through each path from above-mentioned multiplexing unit, and each specific channel of tuning demodulation, with the output of TP form, adaptively storing program guide information, when particular sub-unit application program guide information, it can be transmitted master unit in the past; Be installed in each separate space respectively, inside does not have satellite tuner, receives from the TP signal of the channel correlation of above-mentioned master unit output, decodes to be in harmonious proportion and plays, obtain performance guide information from above-mentioned master unit, and it is retrieved a plurality of subelements of watching.
2, a kind of digital satellite television receiver performance guide information method of reseptance is characterized in that, by constituting with the next stage: particular sub-unit sends the guide information application message stage to master unit; Read the performance guide information stage of above-mentioned particular sub-unit application from master unit performance guide information data pedestal; The above-mentioned performance guide information that reads out is transferred to above-mentioned subelement, and subelement is watched the performance guide information stage of being transmitted.
3, digital satellite television receiver performance guide information method of reseptance as claimed in claim 2 is characterized in that: master unit is to be selected point (Access Point:AP) with wireless terrestrial base station.
4, digital satellite television receiver performance guide information method of reseptance as claimed in claim 3, it is characterized in that: when performance guide information upgrades, above-mentioned master unit can send to subelement with the renewal information of informing, when the subelement application should be upgraded performance guide information, just sends.
5, digital satellite television receiver performance guide information method of reseptance as claimed in claim 2, it is characterized in that: the environment set information stores of above-mentioned subelement search performance guide information is in above-mentioned master unit, and each subelement can be searched for by kind respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053898 CN1738384A (en) | 2004-08-20 | 2004-08-20 | Digital satellite television receiver and its method for receiving programme guide information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053898 CN1738384A (en) | 2004-08-20 | 2004-08-20 | Digital satellite television receiver and its method for receiving programme guide information |
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| Publication Number | Publication Date |
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| CN1738384A true CN1738384A (en) | 2006-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410053898 Pending CN1738384A (en) | 2004-08-20 | 2004-08-20 | Digital satellite television receiver and its method for receiving programme guide information |
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| CN (1) | CN1738384A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491385A (en) * | 2013-09-04 | 2014-01-01 | 航天数字传媒有限公司 | Changing method of satellite user terminal storage programs |
| CN104363281A (en) * | 2014-11-11 | 2015-02-18 | 航天数字传媒有限公司 | Navigation method and system for satellite data transmission |
-
2004
- 2004-08-20 CN CN 200410053898 patent/CN1738384A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491385A (en) * | 2013-09-04 | 2014-01-01 | 航天数字传媒有限公司 | Changing method of satellite user terminal storage programs |
| CN103491385B (en) * | 2013-09-04 | 2016-09-14 | 航天数字传媒有限公司 | A kind of satellite user terminal storage column purpose change method |
| CN104363281A (en) * | 2014-11-11 | 2015-02-18 | 航天数字传媒有限公司 | Navigation method and system for satellite data transmission |
| CN104363281B (en) * | 2014-11-11 | 2017-12-29 | 航天数字传媒有限公司 | Satellite transmits the air navigation aid and navigation system of data |
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