CN1181665A - Variable-speed communication and reproduction system - Google Patents

Variable-speed communication and reproduction system Download PDF

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Publication number
CN1181665A
CN1181665A CN 96122087 CN96122087A CN1181665A CN 1181665 A CN1181665 A CN 1181665A CN 96122087 CN96122087 CN 96122087 CN 96122087 A CN96122087 A CN 96122087A CN 1181665 A CN1181665 A CN 1181665A
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time series
series data
speed
broadcasting speed
data group
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CN 96122087
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CN1110152C (en
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安藤一郎
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Victor Company of Japan Ltd
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Victor Company of Japan Ltd
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  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

a variable-speed communication and reproduction system consists of a server and a clinent device, and a variable-speed data supplier for supplying a requested data set at a play speed specified by the user. The varible-speed data supplier includes the server. A control data communication system and a time-series data communication system are also included in the data supplier, which connect the server and the clinent. The communication and reproduction system further comprises a variable-speed reproducer for reproducing the data set supplied from the variable-speed data supplier at the specified play speed by adjusting the pitch of audio and the video frequencies, and a play speed setter responsive to the specified play speed for setting the specified play speed to the variable-speed data supplier and the variable-speed reproducer.

Description

Variable-speed communication and playback system
The present invention relates to change reappear time serial message (as, moving image, audio frequency, etc.) the communication and the playback system of speed.
Have a kind of customer service system in the prior art, the service unit that wherein stores moving image and audio-frequency information sends requested block of information in response to the request from customer equipment to customer equipment, and customer equipment reappears the information that sends.
An example of this system is exactly a communication Karaoke (rejecting the chant music of a sound) system, and moving image wherein and audio-frequency information comprise a series of coded datas.If the user can catch up with the music that the speed with expectation of his or she request plays and sing a song, that is optimal naturally.Yet conventional system can not change the promptly predetermined decoding speed of predetermined broadcasting speed.
If following problems will take place in service speed according to broadcasting speed change whole system so when reappearing moving image and sound.That is, the tone during with coding is compared, and the tone of the sound of output will take place and the proportional variation of broadcasting speed, become and make us very uncomfortable.In addition, the scanning line frequency and the field frequency of pixel sampling frequency, output moving image also all will take place and the proportional variation of broadcasting speed.On the other hand, generally also to set these frequencies that are used to receive and show the monitor of exporting moving picture signal at the fixed value that has certain tolerance.Therefore, if the broadcasting speed of setting has surpassed any one tolerance, so, claim that the reproduction of animation face and sound can be not successful.
According to one aspect of the present invention, by a kind of variable-speed communication and playback system end improvement these problems of the prior art and other problem being provided and making progress, this system comprises variable rate data source, speed change reproducer and broadcasting speed setting apparatus; The variable rate data source is used for providing requested data set with user-defined broadcasting speed; The speed change reproducer reappears the data set that is provided by the variable rate data source by regulating tone and video with the broadcasting speed of stipulating; The broadcasting speed setting apparatus is set to variable rate data source and speed change reproducer to the broadcasting speed of regulation in response to the broadcasting speed of regulation.
The speed change reproducer comprises reproducer, tone correction device and video match circuit; Data set display reproduction and sound that reproducer is provided by decoding; The tone correction device is used to proofread and correct the tone of the sound that is reproduced; The video match circuit becomes predetermined frequency to the frequency match of the picture that is reproduced.
In certain embodiments, the variable rate data source is to belong to this type that comprises time series data memory and read-out controller, read-out controller wherein make the time series memory can with the regulation broadcasting speed to speed change reproducer output data groups.
In addition, the variable rate data source further also can comprise a buffer circuit.In this case, read-out controller makes time series memory batch (-type) ground output data groups according to the remaining data amount, and the speed of its output or the full speed of interlock circuit perhaps are higher than the speed of regulation, thus the data-storing of output in buffer circuit; Read-out controller also provides the data of storage to the speed change reproducer with the speed of regulation.
In one embodiment, variable-speed communication and playback system comprise a service unit and a plurality of customer equipment.Service unit comprises time series memory and time series data distributor.Each customer equipment all comprises a control data source and a speed change reproducer.
The speed change reproducer can be included in each customer equipment, perhaps comprises in the service unit.
Just can understand fully deep layer purpose of the present invention and advantage from retouching art below the preferred embodiments of the present invention shown in the drawings.Wherein:
Fig. 1 is the schematic diagram of the illustrative speed change playback system of expression, is used to illustrate a basic conception of the present invention;
Fig. 2 is the schematic diagram of the illustrative speed change playback system of expression, is used to illustrate another basic conception of the present invention;
Fig. 3 is the calcspar of expression by the structure of first illustrative embodiment of the variable-speed communication of first aspect present invention and playback system;
Fig. 4 is the calcspar of expression by the structure of second illustrative embodiment of the variable-speed communication of second aspect present invention and playback system;
Fig. 5 is the calcspar of improvement structure of second embodiment of presentation graphs 4;
Fig. 6 is the calcspar of expression by the structure of the 3rd illustrative embodiment of the variable-speed communication of first aspect present invention and playback system; And
Fig. 7 is the calcspar of expression by the structure of the 4th illustrative embodiment of variable-speed communication of the present invention and playback system.
In following illustrative embodiment, suppose: time serial message group comprises moving image information and follows the audio-frequency information of moving image information, and they have constituted one of numbering that variable-speed communication and playback system can provide.
Below, with reference to Fig. 1 basic conception of the present invention is described.Among Fig. 1, a kind of illustrative speed change playback system comprises a time series data source 60, a speed change reproducer 40 and a broadcasting speed setting apparatus 30; Data source 60 provides by numbering request official hour sequence data group with user-defined broadcasting speed in response to the user-defined broadcasting speed data of the numbering on the line 21 on please summation line 31; The time series data group that is provided by time series data source 60 is provided for reproducer 40, provides the audio frequency output of tone correction and the video output of frequency match (below, be simply referred to as " the time series data group of speed change reproduction ") with user-defined broadcasting speed; Setting apparatus 30 is used for receiving user-defined broadcasting speed data from line 31, and sets the broadcasting speed data to speed change reproducer 40 and time series data source 60.
Time series data source 60 comprises a time series data memory 10 and read-out controller 20; Memory 10 is used to store the time series data group of the available numbering of speed change playback system; Controller 20 request of response numbering and user-defined broadcasting speeds can be exported by numbering request official hour sequence data group time series data memory 10 with user-defined broadcasting speed.Speed change reproducer 40 comprises reproducer 42, tone correction device 44 and video (FRE) match circuit (CKT); Reproducer 42 is used for the time series data group is reproduced to the voice data of reproduction and the video data of reproduction; Adjuster 44 is used to proofread and correct the tone of voice data of reproduction so that the voice data through tone correction to be provided; Match circuit 46 is used for the video frequencies of the video data that reappears is matched to predetermined frequency so that the video output through frequency match to be provided.Because user-defined broadcasting speed is at reproducer 42, all settings of audio calibration device 44 and video match circuit (CKT) 46 so each in the middle of them is all being operated with user-defined broadcasting speed.
In the operation, if the user is by means of the numbering of an expectation of scheduled operation request that is fixed to the controller (not shown) on the speed change playback system and set the broadcasting speed of an expectation, so, this numbering request will be input to read-out controller 20, and broadcasting speed setting apparatus 30 will be set to read-out controller 20 to user-defined broadcasting speed, reproducer 42, tone correction device 44 and video (FRE) match circuit (CKT) 46.As previously discussed, time series data source 60 is asked official hour sequence data group in response to request of numbering and broadcasting speed input to provide by numbering corresponding to a broadcasting speed of broadcasting speed input or user-defined broadcasting speed, to reproducer 42.Reproducer 42 with user-defined broadcasting speed respectively to tone correction device 44 and video match circuit 46 output audio signals and vision signal.
Tone correction device 44 becomes the tone correction from the audio signal of reproducer 42 with datum speed to reappear the time series data group so that to the tone of audio output 45 outputs during through the audio signal of tone correction according to user-defined broadcasting speed data.Specifically, if user-defined broadcasting speed, will reduce audio signal faster than datum speed by tone, the degree of reduction equals to reappear the degree that raises by reproducer 42.Otherwise the degree that the tone of audio signal raises equals to reappear lowered degree by reproducer 42.
On the other hand, the video frequencies matched line of the vision signal that reproducer 42 provided according to user-defined broadcasting speed data of video match circuit 46 with datum speed to the video frequencies of video output terminals 47 outputs under the situation of the vision signal of frequency match.Specifically, if user-defined broadcasting speed faster than datum speed, then will reduce the video frequencies of vision signal by means of the minimizing of for example frame.Otherwise, improve the video frequencies of vision signal by means of the interpolation method of for example frame.
So this speed change playback system reappears the time series data that is stored in the time series data memory 10 with user-defined speed speed change.
Below with reference to Fig. 2 another basic conception of the present invention is described.Fig. 2 is identical with Fig. 1, just the time series data source 60 that replaces among 3 Fig. 1 with the time series data source among Fig. 2 70.Therefore, only introduce element 70.Time series data source 70 comprises time series data memory 10, read-out controller 22 and first in first out (FIFO) buffer circuit 25; An input of controller 22 is connected to numbering request line 21, is used for the read operation of control time sequence data memory 10; Buffer circuit 25 is used to receive the time series data of reading from time series data memory 10, and be used for the time series data of temporary transient storage more than predetermined quantity, so that provide the time series data of storage to speed change reproducer 40, and to the remaining data volume of read-out controller 22 outputs with the broadcasting speed that is used to stipulate.
If the remaining data amount of buffer circuits 25 is less than predetermined data volume, then read-out controller 22 sends an instruction to time series data memory 10: realize the output by numbering request official hour sequence data group; Otherwise, then send instruction: the output of dwell time sequence data group.If send the instruction that realizes output, then 10 of time series data memories are realized output with the reading speed corresponding to the broadcasting speed also faster than the highest broadcasting speed.Also have, if send the instruction that realizes output once more after the output of dwell time sequence data group, so, the data of the back of the last data of having exported from the time series data group begin to recover output.
The required buffering memory capacity of buffer circuit 25 is by starting the time of delay of output control from buffer circuit 25 output remaining data amounts to read-out controllers 22 and difference during at minimum or maximum broadcasting speed, between the output speed of the output speed of time series data memory 10 and buffering circuit 25 is determined.Be noted that in starting reconstruction processes buffer circuit 25 just starts the output of the time series data group of storage really surpassed predetermined data volume with the data volume in the buffer circuit 25 after.
Fig. 3 is a calcspar, and expression is by the circuit structure of first illustrative embodiment of the variable-speed communication of a first aspect of the present invention and playback system.In Fig. 3, think that from geometrical point this variable-speed communication and playback system 100 comprise a service unit 120 and a customer equipment 140.From function view, can also think that system 100 comprises a time series data source 60a, speed change (VS) reproducer 40 (identical with the reproducer among Fig. 1) and broadcasting speed setting apparatus 30 (identical with the setting apparatus among Fig. 1); Data source 60a is used for providing by numbering request official hour sequence data group with user-defined broadcasting speed in response to the user-defined broadcasting speed data on numbering request on the line 21 and the line 31; Reproducer 40 is used for speed change and reappears the time series data group; Setting apparatus 30 be used for from line 31 receive user-defined broadcasting speed data and the broadcasting speed data setting to speed change reproducer 40 and time series data source 60.
In the 60a of time series data source, the read-out controller 20 of Fig. 1 is replaced by a read-out controller 20a and a control data communication system (transmitter and receiver) 50 and 52 (transmission line 51 is arranged therebetween).Also have, the line 12 of Fig. 1 is replaced by a time series data (TSD) communication system (transmitter and receiver) 54 and 56 (being provided with a transmission line 55 therebetween).
Therefore, the unique difference between the read-out controller 20 of read-out controller 20a and Fig. 1 is that controller 20a receives numbering request and broadcasting speed data through single incoming line 53 (rather than through two corresponding incoming lines 21 and 32).
In operation, if the user is by means of the numbering of an expectation of scheduled operation request of the controller (not shown) that is fixed to the speed change playback system and set the broadcasting speed of an expectation, so, this numbering request just is input to an input of control data (CD) transmitter 50, and broadcasting speed setting apparatus 30 just is set to CD transmitter 50 and VS (speed change) reproducer 40 to user-defined broadcasting speed.
Described as above system in conjunction with Fig. 1, time series data source 60a provides by numbering request official hour sequence data group to speed change (VS) reproducer 40 with a broadcasting speed corresponding to broadcasting speed input or user-defined broadcasting speed in response to numbering request and broadcasting speed input (perhaps, control data).VS reproducer 40 speed changes are reappeared the time series data group, so that export through the audio signal of tone correction and the vision signal of frequency match to line 45 and 47 respectively.
Fig. 4 is a calcspar, and expression is by the circuit structure of second illustrative embodiment of the variable-speed communication of a second aspect of the present invention and playback system 102.In Fig. 4, see from geometrical point and to think that this variable-speed communication and playback system 102 comprise a service unit 130 and a customer equipment 150.See and to comprise time series data source 70a, speed change (VS) reproducer 40 (identical) and broadcasting speed setting apparatus 30 (identical) for this system 100 from function view with the setting apparatus of Fig. 1 and 2 with the reproducer of Fig. 1 and 2; Data source 70a provides by numbering request official hour sequence data group with user-defined broadcasting speed in response to the user-defined broadcasting speed data on numbering request on the line 21 and the line 31; Reproducer 40 is used for speed change and reappears the time series data group; Setting apparatus 30 is used to receive the user-defined broadcasting speed data on the line 31, and the broadcasting speed data setting is arrived speed change reproducer 40 and time series data source 70a.
In the 70a of time series data source, the read-out controller 22 of Fig. 2 is by a read-out controller 22 and a control data (CD) communication system (transmitter and receiver) 50a and 52a (being provided with a transmission line 51 therebetween) replacement.Also have, the transmission line 14 of Fig. 2 is replaced by a time series data (TSD) communication system (transmitter and receiver) 54 and 56 (being provided with a transmission line 55 therebetween).
Therefore, unique difference of the read-out controller 22 of this read-out controller 22a and Fig. 1 is, controller 22a is not through two incoming lines 21 and 27 but receive numbering request and broadcasting speed data through single incoming line 53.
In operation, if the user is by means of the numbering of an expectation of scheduled operation request that is fixed to a controller (not shown) on variable-speed communication and the playback system and set the broadcasting speed of an expectation, so, this numbering request will be input to the input of control data (CD) transmitter 50a, and broadcasting speed setting apparatus 30 just this user-defined broadcasting speed is set to CD transmitter 50a and VS (speed change) reappears product 40.
As the description of above system in conjunction with Fig. 2, time series data source 70a is in response to numbering request and broadcasting speed input (perhaps control data), ask official hour sequence data group to provide by this numbering corresponding to a broadcasting speed of this broadcasting speed input or the whole speed of user-defined broadcast, to speed change (VS) reproducer 40.VS reproducer 40 speed changes are reappeared this time series data group, so as respectively to line 45 and 47 outputs through the audio signal of tone correction with through the vision signal of frequency match.
In the 70a of time series data source, read-out controller 22a receives control data through CD transmitter 50a, transmission line 51 and CD receiver 52a, and the output of TSD memory 10 is input to buffer circuit 25 through TSD transmitter 54, transmission line 55 and TSD receiver 56.Except that these, the operation in the operation of time series data source 70a and the time series data source 70 of Fig. 2 is identical.
Therefore, buffer circuit 25 required buffering memory capacitys are determined by two factors among Fig. 4, the one, begin total control lag time up to the control of read-out controller 22a begin through CD communication system 50a and 52a to read-out controller 22a output remaining data amount data from buffering circuit 25, the 2nd, the difference when minimum or maximum broadcasting speed, between the output speed of the output speed of time series data memory 10 and buffering circuit 25.Between should annotating once more, in the process of start reappearing, confirmed after data volume in the buffer circuit 25 has surpassed predetermined data volume the output of the time series data group that just startup has been stored at buffer circuit 25.
Fig. 5 is a calcspar, and expression is to a kind of improvement structure of second embodiment of Fig. 4.Except there being one to read control data (RCD) generator 23 is inserted between buffer circuit 25 and control data (CD) the transmitter 50b, the remainder of Fig. 5 is identical with Fig. 4.Only introduce the operation of time series data source 70b below.
In Fig. 5, if reading control data (RCD) generator 23 determines according to the remaining data amount data from buffer circuit 25: the remaining data amount of buffer circuit 25 is less than predetermined data volume, generator 23 will send instruction to CD transmitter 50b so, realize the output by numbering request official hour sequence data group.Otherwise RCD generator 23 sends instruction, the output of dwell time sequence data group.If send the instruction that realizes output, then read-out controller 22b control time sequence data memory 10 is realized output, and its reading speed is corresponding to a broadcasting speed also faster than the broadcasting speed of maximum.In addition, if send the instruction that realizes output once more after stopping the output time series data set, then the data of the data back of exporting at the latest from the time series data group begin to recover output.
Other description that provides in conjunction with Fig. 2 also is effective in the present embodiment.
Fig. 6 is a calcspar, and expression is by the circuit structure of the 3rd illustrative embodiment of the variable-speed communication of a first aspect of the present invention and playback system.This variable-speed communication and playback system 200 belong in service unit 220 realizes that speed change reappears this type.In Fig. 6, the control data source 80 among Fig. 1 is replaced by line 21 and 31, broadcasting speed setting apparatus 30, CD transmitter 50, CD receiver 52c.Service unit 220 comprises time series data memory 10, read-out controller 20, speed change reproducer 40 and CD source 80, and they have formed system shown in Figure 1.Service unit 220 further comprises a TSD encoder 90 and a TSD transmitter 54; Encoder 90 has two inputs, is connected to the audio output and the video output terminals of speed change reproducer 40; Transmitter 54 has an input, links the output of TSD encoder 90.The customer equipment 240 of system 200 comprises a TSD receiver 56 and a reproducer 42; The input of receiver 56 is connected to the output of TSD transmitter 54, and the input of reproducer 42 is linked the output of TSD receiver 54, so that final audio signal and final vision signal to be provided.
In operation, if the user is by means of the numbering of an expectation of scheduled operation request that is fixed to a controller (not shown) on the speed change playback system and the broadcasting speed of setting expectation, so, numbering request and broadcasting speed (that is control data) will directly or respectively be input to CD transmitter 50 through broadcasting speed setting apparatus 30.CD transmitter 50 sends control data to CD receiver 52C; CD receiver 52C only provides numbering request to read-out controller 20, but also will the two all provides the broadcasting speed data to read-out controller 20 and speed change reproducer 40.Read-out controller 20 is in response to control data control time sequence data memory 10, export the time series data group of being asked with user-defined broadcasting speed to speed change reproducer 40, reproducer 40 speed changes are reappeared the time series data group of being asked, reproducer 40 speed changes are reappeared the time series data group asked, to encoder 90 outputs through the audio signal of tone correction with through the vision signal of frequency match.90 pairs of signals of encoder are encoded to offer TSD transmitter 54, and transmitter 54 sends encoded signals to the TSD receiver.TSD receiver 56 offers reproducer 42 to encoded signals, reproducer 42 final these encoded signals of decoding.
In conjunction with other description that Fig. 1 provides present embodiment is also set up.For the details of operation of speed change reproducer 40, see the description of relevant Fig. 1.
Fig. 7 is a calcspar, and the circuit structure of the 4th illustrative embodiment of the variable-speed communication of another aspect of the present invention and playback system is pressed in expression.This embodiment is many customer types of second illustrative embodiment of Fig. 4.In Fig. 7, variable-speed communication and playback system comprise a service unit 700 and a plurality of customer equipment 150, and this customer equipment 150 is equal to the customer equipment 150 of Fig. 4.Service unit 700 comprises above-mentioned TSD memory 10, a plurality of CD receiver 52a, read-out controller 720 and demultplexer (DEMUX) 740; Each receiver 52a is connected on the different customer equipments 150, is used to provide control data; Read-out controller 720 can organize the TSD memory with the TSD that the time-division multiplex mode is exported by numbering request regulation in response to control data; Demultplexer 740 is given corresponding TSD transmitter 54 the TSD set of dispense of output according to the control of read-out controller 720.
In foregoing description, suppose that the time series data group comprises mobile picture and a kind of sound in conjunction with Fig. 3-7.Yet the time series data group can be a plurality of moving image groups and the combination of following the multiple sound of moving image group, the caption data that perhaps includes only moving image, sound and/or follow.
Customer equipment 140,150,150a or 240 can reappear the time series data whole or part that come from service unit 120,130,130a or 220 respectively according to user's selection speed change.For example, service unit can transmit one group of time serial message of the multiple captions that are used for moving image, sound accompaniment and different foreign languages, the expectation language when making the user can select a kind of captions as broadcast.
Under the condition that does not depart from design of the present invention and scope, can also constitute many different embodiment of the present invention.Should be appreciated that, the invention is not restricted to retouch in this manual the specific embodiments of art, scope of the present invention is determined by appended claims.

Claims (11)

1. variable-speed communication and playback system, be divided into a service unit and a customer equipment away from service unit, this customer equipment reappears with user-defined broadcasting speed and is stored in time series data group in the service unit and that asked by the numbering request, and this system comprises:
1) the response broadcasting speed that is used to stipulate and numbering request are so that provide the device of said requested time series data group with said broadcasting speed, and said device comprises:
Said service unit;
First device is used for carrying out communicating by letter of said numbering request and said broadcasting speed from said customer equipment to said service unit; And
Second device is used for carrying out the communication of said time series data group from said service unit to said customer equipment;
2) be used for receiving said time series data group and reappearing at least through the audio signal of tone correction with through the device of the vision signal of frequency match with said broadcasting speed from said feedway; With
3) be used for said numbering request is sent to said first device and said broadcasting speed is sent at least the device of said reception and reproducer.
2. system as claimed in claim 1, wherein said conveyer also is sent to said first device to said broadcasting speed, and the wherein said device of said requested time series data group that provides further comprises:
The device that stores a plurality of time series data groups, said storing apparatus are located in the said service unit and are coupled to said second device; And
Thereby can export the device of said requested time series data group to said second device with said broadcasting speed to control said storing apparatus in response to said numbering request and said broadcasting speed.
3. system as claimed in claim 1, the wherein said device of said requested time series data group that provides further comprises:
The device that stores a plurality of time series data groups, said storing apparatus are located in the said service unit and with said second device and are coupled;
Buffer unit, be used for receiving information, temporarily storing data that said second device provides and report the surplus of said data, and be used for providing said data to said reception and reproducer with said broadcasting speed to said first device with said broadcasting speed; And
Control device, said surplus in response to said numbering request and said data, and, be used to control said storing apparatus so that export said requested time series data group at full speed to said second device according to the said buffer result of determination whether the needs data are supplied with, wherein:
Said conveyer also transmits said broadcasting speed to said buffer unit.
4. system as claimed in claim 1, the wherein said device of said requested time series data group that provides further comprises:
The device that stores a plurality of time series data groups, said storing apparatus are located in the said service unit and with said second device and are coupled;
Buffer unit, be used for receiving information, temporarily storing data that said second device provides and, and be used for providing said data to said reception and reproducer with said broadcasting speed to the information of the said first device output about the surplus of said data with said broadcasting speed;
Receive the said information of relevant said surplus and provide relevant said buffer unit whether to need the device of the judgement of data supply to said first device; And
Control device in response to said numbering request and said judgement, is used to control said storing apparatus so that export said requested time series data group at full speed to said second device, wherein:
Said conveyer also transmits said broadcasting speed to said buffer unit.
5. variable-speed communication and playback system, be divided into a service unit and a customer equipment away from service unit, this customer equipment reappears with user-defined broadcasting speed and is stored in time series data group in the service unit and that asked by the numbering request, and this system comprises:
Respond user-defined broadcasting speed and numbering request so that the device of said requested time series data group is provided with said broadcasting speed;
Be used for receiving said time series data group and reappearing through the audio signal of tone correction with through the device of the vision signal of frequency match with said broadcasting speed from said feedway;
To said through tone correction audio signal and through the device of the encoding video signal of frequency match, the above device is located in the said service unit;
First device is used for carrying out communicating by letter of said numbering request and said broadcasting speed from said customer equipment to said service unit;
Second device is used for carrying out from said service unit to customer equipment the communication of said time series data group;
Be located at the device that is used for transmitting said numbering request and said broadcasting speed in the said customer equipment to said first device; With
From said second device receive and the said time series data group of decoding so that the device of vision signal and audio signal is provided at least.
6. variable-speed communication and playback system, comprise a service unit and a plurality of customer equipment away from service unit, each customer equipment all reappears with the user-defined broadcasting speed of customer equipment and is stored in the service unit and time series data group that asked by user's numbering request, and each said customer equipment all comprises:
Receive and export the device of said broadcast;
Be used to receive said broadcasting speed, store the data of said requested time series data group and the data of said requested time series data group are provided and are used to export the buffer unit of surplus of the said data of said requested time series data group temporarily with said broadcasting speed;
Be used for receiving the said data of said requested time series data group and reappearing at least through the audio signal of tone correction with through the device of the vision signal of frequency match with said broadcasting speed from said buffer unit;
First device is used for carrying out from said customer equipment to said service unit the communicating by letter of said surplus of said numbering request and said data; And
Second device, the said buffer unit that is used for from said service unit to said customer equipment carries out the communication of the said data of said requested time series data group, and said service unit comprises:
The device that stores a plurality of time series data groups;
Control device, in response to by of said surplus and the said numbering request of said first device from the said data of said each transmission of said a plurality of customer equipments, according to the judgement whether the needs data are supplied with of said buffer unit, be used to control said storing apparatus, so that export the said requested time series data group that is used for said each customer equipment at full speed with the multichannel practical way; And
A device is in response to the control data from the said device of controlling said storing apparatus, be used to the said requested time series data group of said a plurality of customer equipment demultiplexing, and be used for each said requested time series data group of said a plurality of customer equipments to said second a device output relevant with the customer equipment of the said numbering request that transmits this time series data group.
7. as any one described system in the claim 1,5 and 6, each data set in wherein said a plurality of time series data groups all comprises a series of moving images and sound accompaniment data.
8. system as claimed in claim 7, wherein said a plurality of time series data groups are Karaoke (rejecting sound) chant musics.
9. system as claimed in claim 7, each of wherein said a plurality of time series data groups further comprises a plurality of caption datas.
10. system as claimed in claim 9, wherein said a plurality of time series data groups are chant musics of Karaoke (rejecting sound).
11. system as claimed in claim 9, wherein said at least one vision signal comprises one of said a plurality of caption datas.
CN96122087A 1996-10-30 1996-10-30 Variable-speed communication and reproduction system Expired - Fee Related CN1110152C (en)

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WO2011143858A1 (en) * 2010-05-20 2011-11-24 中兴通讯股份有限公司 Method, device and terminal for editing and playing music according to data download speed
US8914475B2 (en) 2010-05-20 2014-12-16 Zte Corporation Method, device and terminal for editing and playing music according to data download speed

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