CN105898497A - Digital television signal processing device and multimedia playback device - Google Patents
Digital television signal processing device and multimedia playback device Download PDFInfo
- Publication number
- CN105898497A CN105898497A CN201510810329.9A CN201510810329A CN105898497A CN 105898497 A CN105898497 A CN 105898497A CN 201510810329 A CN201510810329 A CN 201510810329A CN 105898497 A CN105898497 A CN 105898497A
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- CN
- China
- Prior art keywords
- digital television
- signal
- television signal
- signal processing
- processing means
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 claims description 34
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a digital television signal processing device and a multimedia playback device. Any multimedia playback device can watch a digital television. The digital television signal processing device comprises a signal receiving module and a signal processing module. The signal receiving module is used for receiving a digital television signal, carrying out frequency reducing on the received digital television signal, and outputting the digital television signal after frequency reducing. The signal processing module is used for receiving the digital television signal after frequency reducing, and outputting a pre-formatted signal to the multimedia playback device for playback based on the received digital television signal after frequency reducing, wherein the digital television signal after frequency reducing is output by the signal receiving module.
Description
Technical field
The present embodiments relate to signal processing field, particularly relate to a kind of digital television signal processing means
And multimedia play equipment.
Background technology
In prior art, only TV can play digital television program, some other multimedias
Equipment, as having the intelligent sound equipment of display screen, computer etc., does not the most possess the merit watching DTV
Can, it is clear that these multimedia play equipments can application scenarios limited.
Summary of the invention
The embodiment of the present invention provides a kind of digital television signal processing means and multimedia play equipment, in order to
Solve multimedia play equipment in prior art and cannot watch the defect of DTV.
The embodiment of the present invention provides a kind of digital television signal processing means, including:
Signal receiving module, is used for receiving digital television signal, and enters the digital television signal received
Row down conversion process, the digital television signal after output down conversion process；
Signal processing module, the DTV letter after the down conversion process receiving signal receiving module output
Number, and based on the digital television signal after the down conversion process received, export preset format signal at most matchmaker
Body playback equipment plays out.
The embodiment of the present invention also provides for a kind of multimedia play equipment, in the connection of described multimedia play equipment
State digital television signal processing means.
The digital television signal processing means of embodiment of the present invention offer and multimedia play equipment, receive number
Word TV signal carries out a series of process, and final output preset format signal is carried out to multimedia play equipment
Play；Therefore, connect, when any multimedia play equipment, the digital television signal that the embodiment of the present invention provides
During processing means, this multimedia play equipment can watch DTV, the function of multimedia play equipment
Extended.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under,
Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is one of digital television signal processing means example structure schematic diagram of the present invention；
Fig. 2 is the two of digital television signal processing means example structure schematic diagram of the present invention；
Fig. 3 is the three of digital television signal processing means example structure schematic diagram of the present invention；
Fig. 4 is the four of digital television signal processing means example structure schematic diagram of the present invention；
Fig. 5 is the five of digital television signal processing means example structure schematic diagram of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
A kind of digital television signal processing means that the embodiment of the present invention provides is as it is shown in figure 1, the most permissible
Including such as lower module:
Signal receiving module 101, is used for receiving digital television signal, and to the DTV letter received
Number carry out down conversion process, the digital television signal after output down conversion process；
Signal processing module 102, the number after the down conversion process receiving signal receiving module 101 output
Word TV signal, and based on the digital television signal after the down conversion process received, output preset format letter
Number play out to multimedia play equipment.
I.e. use the digital television signal processing means that the embodiment of the present invention provides, multimedia play equipment energy
Enough watch DTV.
The digital television signal processing means that the embodiment of the present invention provides specifically can apply to have display screen
Intelligent sound equipment, the multimedia play equipment such as computer, it is also possible to be applied to other various multimedias
Playback equipment, this is not especially limited by the embodiment of the present invention.
Generally, the digital television signal that digital television signal source sends is high-frequency signal, and above-mentioned signal receives
Module 101 can carry out down conversion process, the DTV of output intermediate frequency to the digital television signal of this high frequency
Signal.
Therefore, during actual enforcement, as in figure 2 it is shown, signal receiving module 101, IF can specifically be passed through
(Intermediate Frequency, intermediate frequency) interface is after signal processing module 102 exports down conversion process
Digital television signal.
Owing to current various multimedia play equipments the most all can arrange USB (Universal Serial
Bus, USB (universal serial bus)) interface, therefore, during actual enforcement, as in figure 2 it is shown, above-mentioned signal processing
Module 102, specifically can export preset format signal by USB interface to multimedia play equipment.
It should be noted that the embodiment of the present invention does not limit the concrete form of this USB interface, Ke Yishi
Standard USB interface, it is also possible to be the USB interface of other forms such as MINI USB interface.
When signal processing module 102 exports preset format especially by USB interface to multimedia play equipment
During signal, this preset format signal can be USB2.0 signal, it is also possible to for USB3.0 signal, this
This is also not especially limited by bright embodiment.
In one particular embodiment of the present invention, signal processing module 102 is as it is shown on figure 3, specifically may be used
To include:
Signal demodulation submodule 1021, the digital television signal after receiving down conversion process, to receiving
Down conversion process after digital television signal be demodulated process, output demodulation process after DTV letter
Number；
Signal transform subblock 1022, for the demodulation process of receiving signal demodulation submodule 1021 output
After digital television signal, the digital television signal after the demodulation process that will receive is converted to preset format
Signal exports.
During actual enforcement, as shown in Figure 4, signal receiving module 101, specifically can pass through IF
(Intermediate Frequency, intermediate frequency) interface signal demodulation submodule in signal processing module 102
Block 1021 exports the digital television signal after down conversion process；
In signal processing module 102, signal demodulation submodule 1021, specifically can pass through TS (Transport
Stream, transmits stream) interface DTV letter after signal transform subblock 1022 exports demodulation process
Number；
Signal transform subblock 1022 in signal processing module 102, specifically can by USB interface to
Multimedia play equipment output preset format signal.
It is also preferred that the left the signal transform subblock 1022 in signal processing module 102, it is also possible to as signal
Receiver module 101 and the control module of signal demodulation submodule 1021.
Concrete, signal transform subblock 1022 receives the control instruction of multimedia play equipment, based on many
The control instruction of apparatus for media playing, the output control signal to signal receiving module 101, control signal
Which digital television signal receiver module 101 specifically receive；And it is based on multimedia play equipment
Control instruction, exports the control signal to signal demodulation submodule 1021, control signal demodulation submodule
The signal demodulating process of 1021.
During actual enforcement, as it is shown in figure 5, signal transform subblock 1022, specifically can pass through USB
The control instruction of interface multimedia play equipment, by I2C (Inter-Integrated Circuit, collection
Become circuit bus) the interface output control signal to signal receiving module 101, and to signal solution tune
The control signal of module 1021.
Concrete, signal transform subblock 1022, by an I2C interface output, signal can be received
The control signal of module 101, by another I2C interface output control to signal demodulation submodule 1021
Signal processed；Signal transform subblock 1022, it is also possible to signal is received by the output of same I2C interface
The control signal of module 101, and the control signal to signal demodulation submodule 1021.
It should be noted that signal processing mould in digital television signal processing means shown in above-mentioned Fig. 3-Fig. 5
The specific implementation of block 102 is merely illustrative, in other specific embodiment of the present invention, and signal processing
Module 102 can also use alternate manner to realize, detailed description of no longer illustrating at this.
The digital television signal processing means that the embodiment of the present invention provides, when implementing, can make class
Product form like USB flash disk, it is simple to connect various multimedia play equipment, as having the intelligent sound of display screen
Ring the multimedia play equipment such as equipment, computer.
The embodiment of the present invention additionally provides a kind of multimedia play equipment, in the connection of this multimedia play equipment
State the arbitrary shown digital television signal processing means of Fig. 1-Fig. 5.This anolog TV signals processing means can
To be connected with multimedia equipment by interfaces such as USB, VGA.
It is connected to the multimedia play equipment of the digital television signal processing means that the embodiment of the present invention provides,
DTV can be watched, it is clear that the function of multimedia play equipment is extended, and then make many matchmakers
The application scenarios of body playback equipment is extended, and improves the experience of user.
Device embodiment described above is only schematically, wherein said illustrates as separating component
Unit can be or may not be physically separate, the parts shown as unit can be or
Person may not be physical location, i.e. may be located at a place, or can also be distributed to multiple network
On unit.Some or all of module therein can be selected according to the actual needs to realize the present embodiment
The purpose of scheme.Those of ordinary skill in the art are not in the case of paying performing creative labour, the most permissible
Understand and implement.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive each reality
The mode of executing can add the mode of required general hardware platform by software and realize, naturally it is also possible to by firmly
Part.Based on such understanding, the portion that prior art is contributed by technique scheme the most in other words
Dividing and can embody with the form of software product, this computer software product can be stored in computer can
Read in storage medium, such as ROM/RAM, magnetic disc, CD etc., including some instructions with so that one
Computer equipment (can be personal computer, server, or the network equipment etc.) performs each to be implemented
The method described in some part of example or embodiment.
Last it is noted that above example is only in order to illustrate technical scheme, rather than to it
Limit；Although the present invention being described in detail with reference to previous embodiment, the ordinary skill of this area
Personnel it is understood that the technical scheme described in foregoing embodiments still can be modified by it, or
Person carries out equivalent to wherein portion of techniques feature；And these amendments or replacement, do not make corresponding skill
The essence of art scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. a digital television signal processing means, it is characterised in that including:
Signal receiving module, is used for receiving digital television signal, and enters the digital television signal received
Row down conversion process, the digital television signal after output down conversion process；
Signal processing module, the DTV letter after the down conversion process receiving signal receiving module output
Number, and based on the digital television signal after the down conversion process received, export preset format signal at most matchmaker
Body playback equipment plays out.
Digital television signal processing means the most according to claim 1, it is characterised in that described letter
Number processing module, specifically includes:
Signal demodulation submodule, the digital television signal after receiving down conversion process, to the fall received
Digital television signal after frequency processes is demodulated processing, the digital television signal after output demodulation process；
Signal transform subblock, the numeral electricity after the demodulation process of receiving signal demodulation submodule output
Depending on signal, the digital television signal after the demodulation process that will receive is converted to the output of preset format signal.
Digital television signal processing means the most according to claim 2, it is characterised in that described letter
Number transform subblock, is additionally operable to control instruction based on multimedia play equipment, and described signal is connect by output
Receive the control signal of module.
Digital television signal processing means the most according to claim 2, it is characterised in that described letter
Number transform subblock, is additionally operable to control instruction based on multimedia play equipment, and output is to described signal solution
The control signal of tune module.
Digital television signal processing means the most according to claim 1, it is characterised in that described letter
Number receiver module, especially by the digital television signal after medium-frequency IF interface output down conversion process.
Digital television signal processing means the most according to claim 1, it is characterised in that described letter
Number processing module, exports preset format signal especially by general-purpose serial bus USB interface.
Digital television signal processing means the most according to claim 6, it is characterised in that described pre-
If format signal is USB2.0 signal.
Digital television signal processing means the most according to claim 2, it is characterised in that described letter
Number demodulation submodule, especially by transmit stream TS interface output demodulation process after digital television signal.
Digital television signal processing means the most according to claim 3, it is characterised in that described letter
Number transform subblock, exports described signal receiving module especially by IC bus I2C interface
Control signal.
Digital television signal processing means the most according to claim 4, it is characterised in that described
Signal transform subblock, demodulates submodule especially by the output of IC bus I2C interface to described signal
The control signal of block.
11. 1 kinds of multimedia play equipments, it is characterised in that described multimedia play equipment connects right
Require the arbitrary described digital television signal processing means of 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810329.9A CN105898497A (en) | 2015-11-20 | 2015-11-20 | Digital television signal processing device and multimedia playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810329.9A CN105898497A (en) | 2015-11-20 | 2015-11-20 | Digital television signal processing device and multimedia playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105898497A true CN105898497A (en) | 2016-08-24 |
Family
ID=57002349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510810329.9A Pending CN105898497A (en) | 2015-11-20 | 2015-11-20 | Digital television signal processing device and multimedia playback device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105898497A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120993A (en) * | 2018-09-30 | 2019-01-01 | Tcl通力电子（惠州）有限公司 | Audio recognition method, intelligent terminal, speech recognition system and readable storage medium storing program for executing |
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| CN1574919A (en) * | 2003-06-12 | 2005-02-02 | 三星电子株式会社 | TV signal receiving module and portable computer having the same |
| US20070139555A1 (en) * | 2005-12-16 | 2007-06-21 | Animation Technologies Inc. | TV signal processor |
| CN101296332A (en) * | 2007-04-27 | 2008-10-29 | 深圳Tcl新技术有限公司 | TV signal receiver |
| CN201450547U (en) * | 2009-06-30 | 2010-05-05 | 青岛海信电器股份有限公司 | Digital television receiving device |
| CN202077152U (en) * | 2011-05-05 | 2011-12-14 | 四川长虹电器股份有限公司 | Digital television terrestrial multimedia broadcasting (DTMB) digital television |
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2015
- 2015-11-20 CN CN201510810329.9A patent/CN105898497A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1574919A (en) * | 2003-06-12 | 2005-02-02 | 三星电子株式会社 | TV signal receiving module and portable computer having the same |
| US20070139555A1 (en) * | 2005-12-16 | 2007-06-21 | Animation Technologies Inc. | TV signal processor |
| CN101296332A (en) * | 2007-04-27 | 2008-10-29 | 深圳Tcl新技术有限公司 | TV signal receiver |
| CN201450547U (en) * | 2009-06-30 | 2010-05-05 | 青岛海信电器股份有限公司 | Digital television receiving device |
| CN202077152U (en) * | 2011-05-05 | 2011-12-14 | 四川长虹电器股份有限公司 | Digital television terrestrial multimedia broadcasting (DTMB) digital television |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120993A (en) * | 2018-09-30 | 2019-01-01 | Tcl通力电子（惠州）有限公司 | Audio recognition method, intelligent terminal, speech recognition system and readable storage medium storing program for executing |
| CN109120993B (en) * | 2018-09-30 | 2021-12-03 | Tcl通力电子（惠州）有限公司 | Voice recognition method, intelligent terminal, voice recognition system and readable storage medium |
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Application publication date: 20160824 |
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