CN100421460C - Player and playing method - Google Patents
Player and playing method Download PDFInfo
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- CN100421460C CN100421460C CNB2005100704496A CN200510070449A CN100421460C CN 100421460 C CN100421460 C CN 100421460C CN B2005100704496 A CNB2005100704496 A CN B2005100704496A CN 200510070449 A CN200510070449 A CN 200510070449A CN 100421460 C CN100421460 C CN 100421460C
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Abstract
The present invention relates to a player which is used for processing input signals. The present invention comprise a first decoding device, a first encoding device, a storage device and an image processor, wherein the first decoding device decodes the input signals into first decoding signals by a first algorithm; the first encoding device is connected with the first decoding device; the storage device is connected with the first encoding device; the image processor is used for receiving the first decoding signals and outputting playing signals through processing. When the image processor stops playing, the first encoding device encodes the first decoding signals into storage signals by a second algorithm and storing the storage signals in the storage device.
Description
Technical field
The invention relates to a kind of playing device and method, especially refer to a kind of playing device and the method that can reply the broadcast real-time signal.
Background technology
Along with the progress of science and technology, many electronic products also engender the demand that satisfies people.Wherein TV is especially because of the development of pluralistic society and popularizing of cable TV, and the indispensable product of family almost gets married.
See also Fig. 1, this is the structure chart of general TV.TV and Radio Corporation can set up transmitting station 11 on the highland usually, to send TV signal 10.Television set needs a reception antenna 12 usually, behind received television signal 10.Television set itself includes a graphics processing unit 13 and a display unit 14, graphics processing unit 13 is handled the TV signal 10 that is received, such as strengthening TV signal, and embark on journey in display unit 14 scanning by a luminous point, row is arranged in face, according to (the National Television System Committee of NTSC, NTSC) television image of Zhi Dinging is broadcast standard, every width of cloth picture must possess 525 scan lines, and must broadcast 30 width of cloth pictures each second.It so is the being seen TV continuous pictures of user.
Yet for common people, TV programme is exactly its not reversibility least easily.In a single day just miss, miss exactly, have no idea to play once more.When viewing and admiring TV programme, mobile phone sounds and sight line must be left display unit for instance, often will miss and reverse the homerun or the plot of film excellence, sighs and make us gripping.
Therefore, in U.S. Patent Publication No. 20020174445, just provide a kind of device that can recall broadcast (playback) to solve above-mentioned problem, yet such system can only solve the traditional analog television system, is not suitable for following main flow: digital television system.How the apparatus for temporary storage finite capacity utilizes apparatus for temporary storage more efficiently in addition, becomes an important topic especially, therefore need a kind ofly design at digital television system, and effectively uses the playing device and the method for apparatus for temporary storage.
Summary of the invention
Main purpose of the present invention provides a kind of playing device, has playback function in order to play in digital television system.
Secondary objective of the present invention provides a kind of playing device, its storage device of more efficient use.
For reaching above-mentioned purpose, the invention provides a kind of playing device in order to handle an input signal, include:
One first decoding device (decoder) is decoded into one first decoded signal with one first algorithm with this input signal;
One first code device (encoder) connects this first decoding device;
One storage device connects this first code device; And
One image processor is exported a play signal after treatment in order to receive this first decoded signal;
Wherein, when this image processor suspended broadcast, this first code device was encoded into a storage signal with one second algorithm with this first decoded signal and is stored in this storage device.
Description of drawings
Fig. 1 is the structure chart of general TV
Fig. 2 is the structure chart of playing device of the present invention
Fig. 3 is the flow chart of player method of the present invention
The figure number explanation:
The 10-TV signal
The 11-transmitting station
The 12-reception antenna
The 13-graphics processing unit
The 14-display unit
The 20-input signal
The 22-antenna
The 23-image processor
The 24-display unit
25-first decoding device
26-first code device
The 27-storage device
28-second decoding device
The 29-control device
The 230-play signal
250-first decoded signal
The 260-storage signal
280-second decoded signal
The flow process of 51-56-player method of the present invention
Embodiment
For making the auditor further cognitive and understanding be arranged to feature of the present invention, purpose and function, conjunction with figs. describes in detail as the back now:
See also Fig. 2, this is for the structure chart of playing device of the present invention.Playing device of the present invention includes in order to handle an input signal 20: one first decoding device 25, an image processor 23, one first code device 26, a storage device 27 and one second decoding device 28.In one embodiment, input signal 20 can be the wireless digital broadcasting signal that receives of home-use antenna or; In cable TV embodiment, input signal 20 can be the cabled digital broadcast singal that cable television operators transmit.First decoding device 25 is with the input signal that is received, after with one first algorithm this input signal 20 being decoded into one first decoded signal 250, when input signal is a compressed digit signals, it for example is the signal that MPEG2 or MPEG4 compressed, algorithm herein is the relative signal that decompresses, if and the input signal modulation signal, then calculation rule herein is a restituted signal; Send this first decoded signal 250 to image processor 23, after image processor 23 is done necessary the processing with first decoded signal 250, for example synchronously, image zoom etc., export a play signal 230 to one display units 24, by display unit 24 signal 230 that displays the play.First code device 26 connects this first decoding device 25, storage device 27 connects this first code device 26, second decoding device 28 connects this storage device 27 and this image processor 23, when these image processing 23 devices suspended broadcast, this first code device 26 was encoded into a storage signal 260 with one second algorithm with this first decoded signal 250 and is stored in this storage device 27.When image processor 23 recovers to play, second decoding device 28 is decoded into one second decoded signal 280 with second algorithm with this storage signal 260, this image processor 23 receives this second decoded signal 280, export this play signal 230 after treatment, handle the storage signal 260 that is stored in storage device 27 but also can design storage signal 260 fragments store, quickening broadcast, the slow play that will partly be stored in storage device 27 herein and fix to like according to the user.In one embodiment, when storage device 27 not during this storage signal 260, image processor 23 is processed into play signal 230 with first decoded signal 250, and when storage device 27 had this storage signal 260, image processor was processed into play signal 230 with second decoded signal 280.
Receiving the wireless digital TV-set signal with family is example, after the user of family utilizes antenna 22 to receive the input signal 20 of TV station with MPEG2 algorithm coding, with the MPEG2 decoding algorithm input signal 20 is decoded into first decoded signal 250 by first decoding device 25, and be sent to after image processor 23 is for further processing, show that by display unit 24 this is general TV functions.When the user need leave the seat, the user can require image processor 23 to suspend broadcast, and at this moment, first code device 26 is encoded into a storage signal 260 with one second algorithm with this first decoded signal 250 and is stored in this storage device 27.Second algorithm can be MPEG2 or other audio-visual compression algorithm.When the user gets back to the seat, and when requiring image processor 23 to recover to play, second decoding device 28 is decoded into behind second decoded signal 280 according to second algorithm with this storage signal 260, delivers to image processor 23 and handles the back and play.So just can reach the function of digital television system playback.
In addition, the present invention also comprises a control device 29, connects first code device 26, storage device 27, this second decoding device 28, and this control device can be adjusted the resolution of this second algorithm according to the storage present situation of this storage device 27.Usually, the decoding method of corresponding one first resolution of first algorithm.The decoding method of corresponding one second resolution of second algorithm, first resolution is greater than or equal to second resolution.Such as: but when storage device 27 memory capacity greater than two/for the moment, the expression memory capacity enough, second resolution will equal first resolution.But when storage device 27 memory capacity less than two/for the moment, control device will be adjusted the resolution of second algorithm, makes to be lower than first resolution, to increase memory time.But when storage device 27 memory capacity less than four/for the moment, control device is further adjusted second resolution again, and increased memory time again.So, just can take into account image quality and time out, increase storage device 27 service efficiencies.
See also Fig. 3, this is for the flow chart of player method of the present invention.Player method of the present invention is in order to handle a digital input signals, and as digital broadcast singal, digital television signal, the inventive method includes following steps:
Step 51: this input signal is decoded into one first decoded signal with one first algorithm;
Step 52: whether require to stop to export a play signal.If yes, execution in step 53; If not, execution in step 56.
Step 53: this first decoded signal is encoded into a storage signal with one second algorithm;
Step 54: store this storage signal;
Step 55: this storage signal is decoded into one second decoded signal with this second algorithm; And
Step 56: handling this first decoded signal or second decoded signal is a play signal.
Wherein, first algorithm is one first resolution decoding method.Second algorithm is one second resolution decoding method, and wherein this first resolution is greater than or equal to this second resolution.
In addition, step 53 also comprises the situation according to storage device, changes the resolution of this second algorithm.But, turn down the resolution of this second algorithm, to increase the temporary time as when storage device memory capacity during less than a preset value.
Architectural feature of the present invention and each embodiment disclose all in detail, and can fully demonstrate the present invention's progressive that all dark tool is implemented on purpose and effect, the value that has industry, and be utilization not seen before on the market at present, spiritual described according to Patent Law, the present invention meets the important document of patent of invention fully.
The above only is preferred embodiment of the present invention, can not with the scope implemented of qualification the present invention, i.e. the equivalence of carrying out according to claim of the present invention changes and revises, and all should still belong in the scope that the present invention contains.
Claims (12)
1. playing device in order to handle an input signal, includes:
One first decoding device is decoded into one first decoded signal with one first algorithm with this input signal;
One first code device connects this first decoding device;
One storage device connects this first code device; And
One image processor is exported a play signal after treatment in order to receive this first decoded signal;
Wherein, when this image processor suspends when playing, this first code device with one second algorithm with this first decoded signal be encoded into a storage signal be stored in this storage device and
Wherein, this first algorithm is one first resolution decoding method;
This second algorithm is one second resolution decoding method, and wherein, this first resolution is higher than this second resolution.
2. playing device as claimed in claim 1 also comprises:
One second decoding device, connect this storage device and this image processor, when this image processor recovers to play, this second decoding device is decoded into one second decoded signal with this second algorithm with this storage signal, and this image processor receives this second decoded signal and exports this play signal after treatment.
3. playing device as claimed in claim 2, wherein, this first code device continues with this second algorithm this first decoded signal to be encoded into this storage signal and is stored in this storage device.
4. playing device as claimed in claim 2, wherein, when this storage device not during this storage signal, this image processor switches and receives this first decoded signal and exports this play signal after treatment.
5. playing device as claimed in claim 1 also includes a display unit, connects this image processor, in order to show this play signal.
6. playing device as claimed in claim 1, also include a control device, connect this first code device, this storage device, with this second decoding device, this control device can be adjusted the resolution of this second algorithm according to the storage present situation of this storage device.
7. playing device as claimed in claim 6 wherein, but when this storage device memory capacity during less than a preset value, is turned down the resolution of this second algorithm.
8. player method in order to handle an input signal, includes following steps:
Steps A: with one first algorithm this input signal is decoded into one first decoded signal, this first algorithm is one first resolution decoding method;
Step B: with one second algorithm this first decoded signal is encoded into a storage signal, this second algorithm is one second resolution decoding method, and wherein, this first resolution is higher than this second resolution;
Step C: store this storage signal; And
Step D: handling this first decoded signal is a play signal.
9. player method as claimed in claim 8 also comprises a step C1: with this second algorithm this storage signal is decoded into one second decoded signal.
10. player method as claimed in claim 9, wherein, step D: handle this first decoded signal and this second decoded signal is a play signal.
11. player method as claimed in claim 8 also comprises a step B1: according to the situation of a storage device, change the resolution of this second algorithm.
12. player method as claimed in claim 11, wherein, but this storage device memory capacity is turned down the resolution of this second algorithm during less than a preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100704496A CN100421460C (en) | 2005-05-09 | 2005-05-09 | Player and playing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100704496A CN100421460C (en) | 2005-05-09 | 2005-05-09 | Player and playing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1863284A CN1863284A (en) | 2006-11-15 |
| CN100421460C true CN100421460C (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100704496A Expired - Fee Related CN100421460C (en) | 2005-05-09 | 2005-05-09 | Player and playing method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267554B (en) * | 2007-03-16 | 2012-05-23 | 瑞昱半导体股份有限公司 | Digital video device for playing and recording and its method |
| TWI382760B (en) * | 2007-03-16 | 2013-01-11 | Realtek Semiconductor Corp | Digital video apparatus and method thereof for video playing and recording |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212568A (en) * | 1998-08-13 | 1999-03-31 | Tcl王牌电子(深圳)有限公司 | Video instant playback system |
| CN1221284A (en) * | 1997-12-20 | 1999-06-30 | 三星电子株式会社 | Digital recording and playback apparatus having MPEG code decoder and method therefor |
| CN1419785A (en) * | 2000-03-31 | 2003-05-21 | 联合视频制品公司 | Interactive media system and method for presenting pause-time content |
| US20040244042A1 (en) * | 2001-02-20 | 2004-12-02 | Billmaier James A. | System and method for delivering radio programs and related schedule information |
| CN1592382A (en) * | 2003-08-27 | 2005-03-09 | 汤姆森特许公司 | Method for a time shift display of a video signal and apparatus therefore |
-
2005
- 2005-05-09 CN CNB2005100704496A patent/CN100421460C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221284A (en) * | 1997-12-20 | 1999-06-30 | 三星电子株式会社 | Digital recording and playback apparatus having MPEG code decoder and method therefor |
| CN1212568A (en) * | 1998-08-13 | 1999-03-31 | Tcl王牌电子(深圳)有限公司 | Video instant playback system |
| CN1419785A (en) * | 2000-03-31 | 2003-05-21 | 联合视频制品公司 | Interactive media system and method for presenting pause-time content |
| US20040244042A1 (en) * | 2001-02-20 | 2004-12-02 | Billmaier James A. | System and method for delivering radio programs and related schedule information |
| CN1592382A (en) * | 2003-08-27 | 2005-03-09 | 汤姆森特许公司 | Method for a time shift display of a video signal and apparatus therefore |
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| Publication number | Publication date |
|---|---|
| CN1863284A (en) | 2006-11-15 |
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Granted publication date: 20080924 |