CN1893612B - Time shifting method of programe signal receiver - Google Patents
Time shifting method of programe signal receiver Download PDFInfo
- Publication number
- CN1893612B CN1893612B CN2005100274500A CN200510027450A CN1893612B CN 1893612 B CN1893612 B CN 1893612B CN 2005100274500 A CN2005100274500 A CN 2005100274500A CN 200510027450 A CN200510027450 A CN 200510027450A CN 1893612 B CN1893612 B CN 1893612B
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- channel
- tuner
- time
- demodulators
- programme signal
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Abstract
The time shift method for device of receiving program signal includes situations: for command of holding time shift for channel program signal, it is not related to channel change so as to continue storing transmission stream; for command of switching channel with time shift maintained, the method executes function of time shift, stores transmission stream of channel A received by tuner/demodulator; when inputting command of holding time shift, then the method stops tune of first tuner/demodulator, receives program signal through channel A by second tuner/demodulator, stores transmission stream of channel A right along, and executes function of time shift; when switching to channel B without command of holding time shift, first tuner/demodulator tunes program signal in channel B with available video and audio, second tuner/demodulator tunes channel A right along, and storing transmission stream; when inputting command for switching to channel A, the method executes related operations.
Description
[technical field]
The invention relates to the time shift method of programme signal receiver, say in more detail, for being equipped with the programme signal that receives two channels from the 1st and the 2nd tuner, and program signal receivers such as the set-top box of the PVR of memory image and voice signal and digital television receiver, programme signal transport stream with certain channel is stored to hard disk in real time, can be by playing and audiovisual against broadcast and times speed broadcast etc.
[background technology]
Adapt with the development of digital technology, in the programme signal receiver, be built-in with PVR.
Above said PVR be equipped with hard disk drive as the storage means usually, various images and voice signal are stored to the hard disk of hard disk drive, and play, and then the user can carry out audiovisual.
Recently, the time shift function that provides is with the programme signal transport stream real-time storage of the present audiovisual channel of the user hard disk to PVR, and plays, thus for impromptu program can by contrary play and doubly speed play audiovisual.
The receiving equipment of programme signal in the past that the is equipped with this time shift function only channel program signal in present receiving said audiovisual provides the time shift function, does not then provide the time shift function for the channel program signal that does not have audiovisual.
For instance, the programme signal receiving equipment that distributes about 30 minutes time shift buffering area to hard disk, fixing present channel A receives present programme signal more than 30 minutes, for present channel A time shift when in service, the transport stream of about 30 minutes programme signal that channel A will receive is stored to the time shift buffer, so from now on, can carry out contrary the broadcast and doubly fast the broadcast for former about 30 minutes programme signal transport stream, and then audiovisual.
In the identical therewith state, if change to channel B, the programme signal transport stream that is stored to the channel A of time shift buffer is all deleted, can not carry out contrary the broadcast and doubly fast the broadcast, begin the programme signal transport stream of channel B is stored to the time shift buffer, according to the process of time, can to the transport stream of the channel B programme signal that is stored to time buffer carry out contrary play and doubly speed play.
Simultaneously, if be channel A with the channel alteration that receives once more, the transport stream that is stored to the channel B programme signal of time shift buffer is all deleted, begin the programme signal transport stream of channel A is stored to the time shift buffer, according to the process of time, can to the transport stream of the channel A programme signal that is stored to the time shift buffer carry out contrary play and doubly speed play.
Promptly, the programme signal receiving system of time shift function in the past is equipped with, to receive now and the channel alteration of audiovisual when being other channel, the time shift buffer of hard disk drive is all deleted the transport stream of storing in original channel program signal, storage is the programme signal transport stream of change channel now, the time of implementation shift function.
So behind the change channel, just can't carry out contrary the broadcast to the programme signal of former storage and play audiovisual with times speed, in addition, channel program signal for the present audiovisual of change channel, extremely a certain amount of transport stream is stored to till the time shift buffer, should pass through time of implementation regular hour shift function.
[summary of the invention]
So the main purpose of the time shift method of programme signal receiving equipment provided by the invention is exactly for now just in the programme signal of certain channel of audiovisual, the user sends when holding time shift command, irrelevant with the conversion of channel, to the hold time channel program transport stream signal of shift command of continuation is stored to the time shift buffer, thus, when being converted to time shift once more and keeping the channel of order, but also time of implementation shift function.
Another purpose of time shift method of programme signal receiving equipment of the present invention is, from the channel switch of the shift command of holding time to another channel, during the corresponding programme signal of audiovisual, the programme signal transport stream of another channel is stored to the time shift buffer, according to the process of time, come the time of implementation shift function.
For realizing this purpose, the time shift method of programme signal receiving equipment of the present invention is: the transport stream of the channel A that the 1st tuner/demodulators is received is stored in the time shift buffering area of hard disk drive, the time of implementation shift function, pass through command input device, PVR set-top box processes device judges whether the shift command of holding time is imported, the result who judges is, when the order that is shifted is held time in input, stop the tuning of the 1st tuner/demodulators, the programme signal of the 2nd tuner/demodulators receiving channels A, continue storage and receive the transport stream of channel A programme signal to the time shift buffering area, while time of implementation shift function, judge whether to import order to the channel B of the shift command of not holding time converted channel, when channel change command is imported, the programme signal of the 1st tuner/demodulators tuning in to channels B, and audiovisual, the 2nd tuner/demodulators continues the programme signal of tuning in to channels A, transport stream is stored to the time shift buffering area, judge whether to import order simultaneously to channel A converted channel, when input during to the order of channel A converted channel, stop the tuning of the 1st tuner/demodulators, the programme signal of the 2nd tuner/demodulators receiving channels A, the transport stream that receives channel A programme signal is stored to the time shift buffering area, the time of implementation shift function.
Simultaneously, in the 1st tuner/demodulators tuning in to channels B programme signal, and during audiovisual, the programme signal transport stream of channel B is stored to the time shift buffering area, the time of implementation shift function.
Identical with the above, the channel program signal that the present invention holds time and is shifted for order, irrelevant with channel alteration, continue the storage transport stream, return back to order hold time the displacement channel the time, can carry out contrary the broadcast and the doubly fast equal time shift function of playing for the transport stream of corresponding channel, in addition, for the channel program signal that does not have order to hold time and be shifted, when the programme signal of reception corresponding channel is carried out audiovisual, the storage transport stream can be carried out the contrary equal time shift function of playing and doubly also play according to the process of time.
[description of drawings]
Fig. 1 is the formation piece figure according to the suitable programme signal receiving system of time shift method of the present invention;
Fig. 2 is the signal flow graph according to time shift method of the present invention.
[embodiment]
Time shift method to programme signal receiving equipment of the present invention is elaborated below with reference to accompanying drawings.
Fig. 1 is the formation piece figure according to the programme signal receiving equipment of time shift method of the present invention.With identical shown in the figure, its formation comprises as lower device: receive the programme signal of certain channel separately, carry out demodulation, and the 1st tuner/demodulators 100 of output transport stream and the 2nd tuner/demodulators 110; Control is from the storage and the processing of the transport stream of the 1st and the 2nd tuner/demodulators 100,110 output, but and the PVR set-top box processes device 120 of audiovisual; To input to the command input device 130 of PVR set-top box processes device 120 according to the operational order of user's operation; Distribute the time shift buffering area, and the output signal storage of the 1st, the 2nd tuner/demodulators that will provide according to PVR set-top box processes device 120 exports the hard disk drive 140 of time shift buffer to; The output signal of the 1st, the 2nd tuner/demodulators that processing provides according to PVR set-top box processes device 120 and the play signal of hard disk drive 140, but and the image/sound processing unit 150 of audiovisual.
The programme signal receiving system of this formation is according to the user's order by command input device 130 inputs, the 1st tuner/demodulators 100 and the 2nd tuner/demodulators 110 receive certain separately channel program signal respectively, and demodulation, output, the signal of the 1st tuner/demodulators 100 and 110 outputs of the 2nd tuner/demodulators is handled back output in image/sound processing unit 150, but the programme signal of the certain channel of user's audiovisual.
In addition from the 1st tuner/demodulators 100 and the 2nd tuner/demodulators 110 output certain channel program signal, be the control of transport stream according to PVR set-top box processes device 120, be stored in the hard disk time shift buffering area, according to user's order by command input device 130 inputs, broadcast is stored in the transport stream of time shift buffering area, in image/sound processing unit 150, handle back output, but user's audiovisual is stored in the transport stream of hard disk drive.
The time shift method of the present invention that is applicable to this formation programme signal receiving equipment is same as shown in Figure 2, in step 200 according to the control of PVR set-top box processes device 120, the 1st tuner/demodulators 100, the programme signal of receiving channels A for example, the programme signal transport stream that receives is stored to hard disk drive 140, the transport stream of storage is carried out contrary the broadcast or doubly speed broadcast according to user's order, and the user can carry out audiovisual.
In next step 202, the user is by command input device 130, order the shift function of holding time, PVR set-top box processes device 120 is controlled the 1st tuner/demodulators 100 in step 204, the programme signal of the certain channel of untuned adapts therewith, the programme signal of the 2nd tuner/demodulators 110 receiving channels A, the programme signal transport stream that receives is stored in the hard disk drive 140, the contrary broadcast or the doubly fast transport stream of playing storage, the user can audiovisual.
In next step 206, PVR set-top box processes device 120 judges whether to import the transformation order of certain channel by command input device 130, whether the reception order of the programme signal of channel B is imported for instance, programme signal at channel B receives under the situation of order input, PVR set-top box processes device 120 makes the programme signal of 100 receptions of the 1st tuner/demodulators, demodulation and output channel B in step 208, transport stream input with channel B programme signal simultaneously is stored to hard disk drive 140, carries out the time shift function of channel B programme signal transport stream simultaneously.In addition, above said the 2nd tuner/demodulators 110 continue the programme signal of receiving channels A, the transport stream that continues the channel A programme signal that will receive is stored in the time shift buffering area of hard disk drive.
In identical therewith state, in step 210, the user is converted to channel A by command input device 130 with receiving channels, PVR set-top box processes device 120 is in step 212, control the 1st tuner/demodulators 100, stop the tuning of channel B, the 2nd tuner/demodulators 110 receives order continue the to hold time programme signal of channel A of shift function, the transport stream of the channel A programme signal that the 2nd tuner/demodulators 110 is received inputs to hard disk drive 140, be stored to the time shift buffer simultaneously, come the time of implementation shift function according to user's order.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to interest field.
Claims (2)
1. the time shift method of programme signal receiving equipment comprises:
First step: the transport stream of the channel A that the 1st tuner/demodulators is received is stored in the time shift buffering area of hard disk drive, the time of implementation shift function, personal video record PVR set-top box processes device judges by command input device whether the shift command of holding time is imported;
Second step: when the order that is shifted is held time in input in the first step, stop the tuning of the 1st tuner/demodulators, the programme signal of the 2nd tuner/demodulators receiving channels A, continue storage and receive the transport stream of channel A programme signal to the time shift buffering area, the time of implementation shift function judges whether to import the order to the channel B of the shift command of not holding time converted channel simultaneously;
Third step: in second step when channel change command is imported, the programme signal of the 1st tuner/demodulators tuning in to channels B, and audiovisual, the 2nd tuner/demodulators continues the programme signal of tuning in to channels A, transport stream is stored to the time shift buffering area, judges whether to import order simultaneously to channel A converted channel;
The 4th step: when input during to the order of channel A converted channel, stop the tuning of the 1st tuner/demodulators, the programme signal of the 2nd tuner/demodulators receiving channels A is stored to the time shift buffering area with the transport stream that receives channel A programme signal, the time of implementation shift function.
2. as the time shift method of claim item 1 described programme signal receiving equipment, it is characterized in that described third step also comprises:
The transport stream signal of the channel program B that the 1st tuner/demodulators is tuning is stored to the time shift buffering area, simultaneously the time of implementation shift function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100274500A CN1893612B (en) | 2005-07-01 | 2005-07-01 | Time shifting method of programe signal receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100274500A CN1893612B (en) | 2005-07-01 | 2005-07-01 | Time shifting method of programe signal receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1893612A CN1893612A (en) | 2007-01-10 |
| CN1893612B true CN1893612B (en) | 2010-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100274500A Expired - Fee Related CN1893612B (en) | 2005-07-01 | 2005-07-01 | Time shifting method of programe signal receiver |
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| Country | Link |
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| CN (1) | CN1893612B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351444A (en) * | 2000-10-30 | 2002-05-29 | 松下电器产业株式会社 | Recording and playing back device |
| US6728713B1 (en) * | 1999-03-30 | 2004-04-27 | Tivo, Inc. | Distributed database management system |
| WO2004057865A2 (en) * | 2002-12-20 | 2004-07-08 | Koninklijke Philips Electronics N.V. | More user friendly time-shift buffer |
| WO2005011270A1 (en) * | 2003-07-21 | 2005-02-03 | Thomson Licensing S.A. | Personal video recorder that records through channel change |
-
2005
- 2005-07-01 CN CN2005100274500A patent/CN1893612B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6728713B1 (en) * | 1999-03-30 | 2004-04-27 | Tivo, Inc. | Distributed database management system |
| CN1351444A (en) * | 2000-10-30 | 2002-05-29 | 松下电器产业株式会社 | Recording and playing back device |
| WO2004057865A2 (en) * | 2002-12-20 | 2004-07-08 | Koninklijke Philips Electronics N.V. | More user friendly time-shift buffer |
| WO2005011270A1 (en) * | 2003-07-21 | 2005-02-03 | Thomson Licensing S.A. | Personal video recorder that records through channel change |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-261548A 1997.10.03 |
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| Publication number | Publication date |
|---|---|
| CN1893612A (en) | 2007-01-10 |
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Granted publication date: 20100428 Termination date: 20120701 |