CN100525422C - Data processing apparatus, data processing method and data processing system - Google Patents

Abstract

A data processing apparatus for outputting a plurality of picture data forming reproduced data to a reproduction apparatus for reproduction, the data processing apparatus having a processing circuit for judging if the reproduction rate of the picture data by the reproduction apparatus is slower than a transfer rate for transferring the picture data to the reproduction apparatus and outputting all of the picture data forming the reproduced data to the reproduction apparatus when judging as a result of the judgment that the reproduction rate is slower than the transfer rate.

Description

Data processing equipment, method and system

The cross reference of related application

The present invention comprise with on October 26th, 2004 in the Japanese patent application No. 2004-311594 of Japan Patent office application and on August 24th, 2005 the relevant theme of Japanese patent application No. 2005-243290 in the application of Japan Patent office, its full content is hereby incorporated by.

Technical field

The present invention relates to for example be used for output to data processing equipment, data processing method, data handling system, program and the storage medium of on-line equipment to reproduce with forming a plurality of image datas that reproduce data.

Background technology

For example, have such system, this system will comprise that the reproduction data form computer (data processing equipment) of the image data of a plurality of MPEG of utilization (Motion Picture Experts Group) scheme coding outputs to transcriber to reproduce (for example referring to open (A) number 2004-215185 of Japan Patent).In general system, for example when transcriber was carried out the reproduction of 1X speed, data processing equipment output 1X speed was reproduced desired reproduction data.In addition, for example, when transcriber was carried out 3X speed and reproduced, even when reproducing speed and be lower than message transmission rate to transcriber, data processing equipment was also only to the desired data of transcriber output 3X speed reproduction data.

Yet, for example when reproducing from 3X speed when being reduced to 1X speed and reproducing, transcriber obtains to be used for 3X and reproduces desired data volume, rather than acquisition 1X speed is reproduced desired data volume, so, be necessary to be used for 1X speed and reproduce desired data and be sent to transcriber from data processing equipment once more, thus the moment slow motion to reproduce be very difficult.That is to say, exist the very poor shortcoming of response is reproduced in slow motion.

Summary of the invention

An object of the present invention is to provide data processing equipment, data processing method, data handling system, program and storage medium, they can output to transcriber to reproduce and to reproduce the response that improves when speed is lower than transmission rate in the slow motion reproduction transcriber at a plurality of image datas that will form the reproduction data from data processing equipment.

In order to realize this purpose, according to first aspect present invention, a kind of data processing equipment is provided, be used for outputing to transcriber to reproduce with forming a plurality of image datas that reproduce data, described data processing equipment comprises treatment circuit, be used to judge whether described transcriber is lower than the transmission rate that is used for described image data is transferred to described transcriber to the reproduction speed of described image data, and output to described transcriber judging all image datas that will form described reproduction data when described reproduction speed is lower than described transmission rate as the result who judges.

The action of a first aspect of the present invention is as follows: data processing equipment output forms a plurality of image datas of reproduction data to transcriber.The processing unit of data processing equipment judges whether transcriber is lower than the transmission rate that image data is transferred to transcriber to the reproduction speed of image data.Judging as judged result when reproducing speed and being lower than transmission rate, its all image datas that will form the reproduction data output to transcriber.

According to second aspect present invention, a kind of data processing method is provided, be used for outputing to transcriber to reproduce with forming a plurality of image datas that reproduce data, the data processing method of described data processing equipment comprises: first step, judge whether described transcriber is lower than the transmission rate that described image data is transferred to described transcriber to the reproduction speed of described image data; With second step, when described first step is judged described reproduction speed and is lower than described transmission rate as judged result, all described image datas that form described reproduction data are outputed to described transcriber.

According to third aspect present invention, a kind of data handling system is provided, be used to make data processing equipment will form a plurality of image datas that reproduce data and output to transcriber to reproduce, wherein said computer data processing unit judges whether described transcriber is lower than transmission rate when described image data outputed to described transcriber to the reproduction speed of described image data, and in judged result is that all image datas that described reproduction speed will form described reproduction data when being lower than described transmission rate output to described transcriber, and described transcriber comprises: input store; The described image data that reads from described input store is decoded, and utilize described reproduction speed writing described input store with being used for from the described image data of described data processing equipment input to its device that reproduces.

The action of the 3rd invention is as follows according to the present invention: data processing equipment judges whether transcriber is lower than transmission rate when image data is outputed to transcriber to the reproduction speed of image data, and exports for reproducing all image datas that will form the reproduction data when speed is lower than transmission rate in judged result.In addition, transcriber will be write input store from the image data of data processing equipment input, and the image data that reads from input store is decoded, and to reproduce speed it be reproduced.

According to fourth aspect present invention, a kind of program of being carried out by data processing equipment is provided, be used for outputing to transcriber to reproduce with forming a plurality of image datas that reproduce data, comprise: first routine, judge whether described transcriber is lower than the transmission rate that described image data is transferred to described transcriber to the reproduction speed of described image data; With second routine,, all image datas that form described reproduction data are outputed to described transcriber when the described first routine judged result is a described reproduction speed when being lower than described transmission rate.

The 5th invention according to the present invention, a kind of storage medium is provided, the program that storage is carried out by data processing equipment, be used for outputing to transcriber to reproduce with forming a plurality of image datas that reproduce data, described program comprises: first routine, judge whether described transcriber is lower than the transmission rate that described image data is transferred to described transcriber to the reproduction speed of described image data; With second routine,, all image datas that form described reproduction data are outputed to described transcriber when the described first routine judged result is a described reproduction speed when being lower than described transmission rate.

The 6th invention provides a kind of data processing equipment according to the present invention, is used for outputing to transcriber to reproduce with forming a plurality of image datas that reproduce data, and comprising: storage device is used to store described reproduction data; Treatment circuit, be used to judge whether described transcriber is lower than transmission rate in the time will outputing to described transcriber from the described image data that described storage device reads to the reproduction speed of described image data, and in judged result is described reproduction speed when being lower than described transmission rate, and all image datas that form described reproduction data are outputed to described transcriber; And transcriber, be used for the described image data that reads from described input store being decoded, and it being reproduced with described reproduction speed with writing input store from the image data of described treatment circuit output.

According to the present invention, data processing equipment, data processing method, data handling system, program and storage medium can be provided, they can output to transcriber with these data of reproduction transcriber from data processing equipment with forming a plurality of image datas that reproduce data, and are reproducing the response that improves when speed is lower than transmission rate in the slow motion reproduction.

Description of drawings

With reference to the accompanying drawings, from following description related to the preferred embodiment, it is clearer that the other objects and features of the invention will become, in the accompanying drawings:

Fig. 1 is the overall arrangement figure according to the data handling system of the embodiment of the invention;

Fig. 2 is the figure that is used to explain data handling system decoding reproduction data ENC shown in Figure 1;

Fig. 3 is used to explain from the computer shown in Fig. 1 the figure that notice outputs to transcriber is finished in transmission;

Fig. 4 is the flow chart of example that is used for the overall operation of the data handling system shown in the key-drawing 1;

Fig. 5 is the flow chart of map interlinking 4, is used for the example of the overall operation of the data handling system shown in the key-drawing 1;

Fig. 6 is the flow chart that is used for the operation of the data handling system shown in the key-drawing 1 when specifying reproduction speed;

Fig. 7 is the figure that is used to explain the priority of data when the computer of the data handling system shown in Fig. 1 arrives transcriber with transfer of data, wherein Fig. 7 A is the figure of specific example that is used to explain the priority of I, P and B image data, and Fig. 7 B is the figure that is used to explain according to the specific example of the pattern of the priority output of I, P and B image data;

Fig. 8 is the flow chart that is used to explain the specific example of the operation when changing the reproduction speed of the data handling system shown in Fig. 1;

Fig. 9 is the figure that is used to explain the specific example of the operation of data handling system when will reproduce speed at the step ST35 place shown in Fig. 8 changes to the reproduction speed that is higher than it from being lower than peak transfer rate;

Figure 10 is the figure that is used to explain the specific example of the operation of data handling system when will reproduce speed at the step ST36 place shown in Fig. 8 changes to the reproduction speed that is lower than it from being higher than peak transfer rate;

Figure 11 is used to explain that the low speed shown in Figure 10 changes the figure of first specific example of handling;

Figure 12 is used to explain that low speed when will reproduce speed at the step ST36 place shown in Fig. 8 changes to the reproduction speed that is lower than it from being higher than peak transfer rate changes the figure of second specific example of handling;

Figure 13 is used to explain that the low speed shown in Figure 11 changes the figure of second detailed example of handling;

Figure 14 is used to explain that low speed when will reproduce speed at the step ST36 place shown in Fig. 8 changes to the reproduction speed that is lower than it from being higher than peak transfer rate changes the figure of the 3rd specific example of handling;

Figure 15 is used to explain that low speed changes the figure of the 3rd specific example of handling;

Figure 16 shows the figure of the situation of the anchor frame that reproduces decoding in first specific example;

Figure 17 shows the figure of the situation of the anchor frame that reproduces decoding in second specific example;

Figure 18 shows the figure of the situation of the anchor frame that reproduces decoding in the 3rd specific example;

Figure 19 is the flow chart that reproduces the situation of the anchor frame of decoding in first specific example; With

Figure 20 is used to explain the figure that the data treatment system is made amendment according to the embodiment of the invention.

Embodiment

Explained later is according to the data handling system of the embodiment of the invention.

Fig. 1 is the overall arrangement figure according to the data handling system 1 of the embodiment of the invention.As shown in Figure 1, data handling system 1 for example has computer 2 and transcriber 4.

[computer 2]

As shown in Figure 1, computer 2 has HDD 12, bridge 14, memory 16, bridge 18, operating equipment 19 and CPU 20.Note, memory 16 storing predetermined programs (program of fourth aspect present invention), and CPU 20 reads and carries out this program and carries out following processing.Preset program can be stored in semiconductor memory or other memories 16, perhaps is stored in HDD, CD or other storage mediums.HDD 12 for example stores the reproduction data ENC according to MPEG scheme coding.

Reproduction data ENC as shown in Figure 2 is included in a plurality of GOP (set of pictures) of sequential order decoding in the transcriber 4.In the example shown in Fig. 2, according to the order decoding of GOP (N-1), (N), (N+1), (N+2).Each GOP comprises I, P and B image data (frame data).In addition, each GOP comprises single I image data.In the present embodiment, for example, used so-called " the long GOP " of the image data that in GOP, has relatively large number.

The I image data is the image data of (in the frame) in the coded image, and independent decoded with respect to other image datas.In addition, the P image data is the image data of the frame of measurable coding on forward direction, and with reference to (previous DISPLAY ORDER) I or the P image data and decoded that are positioned in time in the past.Notice that " I and P image data " also is known as " anchor image data ".In addition, the B image data is the image data of the frame of measurable coding on both direction.And be positioned on the reference time front or back (preceding or at the back DISPLAY ORDER) I or P image data and decoded.

Note, form a plurality of image datas that reproduce data and comprise the first kind image data and the second class image data, wherein in first kind image data, when other image datas are decoded with reference to the decoded result of transcriber 4, in the second class image data, reference decoder result not when other image datas are decoded.This first kind image data is corresponding to I image data and P image data, and the second class image data is corresponding to the B image data.

Notice that the read rate of HDD 12 is lower than the maximum of transcriber 4 and reproduces speed.In addition, the maximum that 4 maximum data transfer rate is lower than transcriber 4 from computer 2 to transcriber is reproduced speed.

Bridge 14 provides the expanded function of bridge 18, and has PCI expansion slot or IDE (integrated drive electronics) slot etc.Bridge 14 has and bridge 18 identical functions basically, but has the bandwidth narrower than bridge 18, and has the low access means of device rate that the ratio that is connected to it is connected to bridge 18.

Memory 16 for example is a semiconductor memory, and storage is used for the program and the data of the processing of CPU 20.Operating equipment 19 is keyboard, mouse or other operating means, and to the operation signal of CPU 20 outputs corresponding to user's operation.Operating equipment 19 receives the operation that is used to specify the reproduction point that reproduces data ENC, be used to send appointment reproduction point the reproduction initiation command operation and change the operation of reproducing speed, and export the operation signal of the specified reproduction point of demonstration to CPU 20.Bridge 18 is connected to it with bridge 14, memory 16, pci bus 6 and CPU 20, and conversion is along the address bus of CPU 20 and the data of data/address bus transmission.

CPU 20 for example carries out the program of reading from memory 16, with the operation of control computer 2.When CPU 20 receives indication when specify reproducing the operation signal of operation of point from operating equipment 19, CPU 20 reads the GOP of the image data of the reproduction point that comprises appointment from HDD 12, and by bridge 18 and pci bus 6 transcriber 4 is arrived in its output (transmission).In addition, CPU 20 reads GOP according to the reproduction progress status of transcriber 4 continuously from HDD 12, and the result is outputed to transcriber 4.In addition, CPU 20 finishes notice TCN with the transmission that links with output GOP CPU 42 of transcriber 4 and outputs to transcriber 4.

As shown in Figure 3, transmission is finished notice TCN the address of identification data from computer 2 output (transmission) to the GOP of transcriber 4, input store 32 that this GOP is written into and the size of data of GOP is shown.In addition, transmission is finished identification data, the image data that notice also illustrates each image data among the GOP that is exported and is written into the address of input store 32 and the size of image data.In addition, when CPU 20 receives indication when reproducing the operation signal of initiation command operation from operating equipment 19, it just will specify the reproduction initiation command of reproduction to output to transcriber 4 by bridge 18 and pci bus 6.

In addition, when receiving indication as input from operating equipment 19 and be used for order and reproduce the operation signal of operation of speed, CPU 20 just outputs to transcriber 4 by the reproduction rate command that bridge 18 and pci bus 6 will be used to be provided with reproduction speed.In addition, when receiving the operation signal of indicating the operation that is used for order change reproduction speed from operating equipment 19, CPU 20 just outputs to transcriber 4 by the order that bridge 18 and pci bus 6 will indicate change to reproduce speed.

In addition, CPU 20 judges whether reproduction speed that the 4 pairs of image datas of transcriber reproduce is lower than that image data is transferred to the transmission rate of transcriber 4 is low.When judging as judged result when reproducing speed and being lower than transmission rate, all image datas that it just will form the reproduction data output to transcriber 4.

In addition, when judging when reproducing speed faster than transmission rate, the part of the image data that CPU 20 will can transmit according to the reproduction speed that forms in all a plurality of image datas that reproduce data is transferred to transcriber 4.

In addition, when judging reproduction speed faster than transmission rate, CPU 20 exports I and P image data that priority is higher than the B image data according to the reproduction speed that forms in all a plurality of image datas that reproduce data.In addition, when judging reproduction speed faster than transmission rate, CPU20 outputs to transcriber 4 with the priority that forms in all a plurality of image datas that reproduce data with I image data, P image data and B image data.

In addition, CPU 20 writes image data in the input store 32 of transcriber 4, and makes the image data of writing in the input store 32 decoded and reproduce with the reproduction speed of appointment.

When making image data be written in the input store 32 of transcriber 4, CPU 20 generates management information, is used in transcriber 4 reference when input store 32 reads and reproduce image data, and the management information that is generated is outputed to transcriber 4.This management information is finished notice TCN corresponding to the transmission shown in Fig. 3.

In addition, CPU 20 receives and is used for and will reproduces speed from change to the order that is lower than transmission rate faster than transmission rate, stop the reproduction of transcriber 4 temporarily, all a plurality of image datas that form corresponding to the reproduction data of just reproduced frame are outputed to transcriber 4, and make transcriber 4 begin to reproduce data from the reproduction point that is stopped temporarily with the reproduction speed of appointment.

In addition, CPU 20 receives and is used for and will reproduces speed from change to the order that is lower than transmission rate faster than transmission rate, all a plurality of image datas of reproduction data that form the next frame of the frame that reproduces corresponding to just reproduced device 4 are outputed to transcriber 4, and make transcriber 4 reproduce data to reproduce speed.

In addition, when CPU 20 when operating equipment 19 receives the operation signal of indication transition command operation as input, it outputs to transcriber 4 by bridge 18 and pci bus 6 with this transition order.In addition, when CPU 20 receives the operation signal of indication transition command operation as input, whether the GOP that its judgement is included in the image data that next will be used in the transition reproduction direction reproduction afterwards is stored in the input store 32, if and judge this GOP and be not stored in the input store 32, then this GOP is outputed to transcriber 4.On the contrary, be stored in the input store 32 when CPU 20 judges GOP, then it does not just output to transcriber 4 with this GOP, but the CPU 42 that notice outputs to transcriber 4 is finished in the transmission of this GOP.

CPU 20 finishes notice, transition order, reproduction speed order based on the transmission that outputs to transcriber 4 and waits GOP and the image data of managing storage in the input store 32 of transcriber 4.Like this, CPU 20 can judge whether the GOP that is included in the image data that next will be used in the transition reproduction direction afterwards is stored in the input store 32.In addition, the address of CPU 20 definite GOP that next will be write, so that following image data part can be written, the described image data that is written partly is in the image data that has reproduced in transcriber 4 in the image data of storage in image data input store 32.

In addition, CPU 20 also can and reproduce speed and judge based on peak transfer rate comparison transmission rate.For example, CPU 20 can judge whether the speed that 4 pairs of image datas of transcriber reproduce is lower than the peak transfer rate that is used for image data is transferred to transcriber 4.Be lower than transmission rate if judge reproduction speed as judged result, then it can output to transcriber 4 with forming all image datas that reproduce data.

[transcriber 4]

As shown in Figure 1, transcriber 4 for example has PCI bridge 30, input store 32, decoder 34_1, reproduction of storage 36_1, selector 38, control storage 40, CPU 42 and control bus 46.Note, control storage 40 storing predetermined programs, and CPU 42 reads and carries out this program and carries out following processing.Preset program can be stored in semiconductor memory or other control storages 40, perhaps can be stored in HDD, CD or other storage mediums.

PCI bridge 30 has memory, is used to cushion via GOP and the order of pci bus 6 from computer 2 inputs.In addition, bridge 18 has dynamic memory access (DMA) transfer function.Input store 32 is SDRAM or other semiconductor memories, and interim storage is via the GOP of PCI bridge 30 inputs.

Decoder 34_1 utilizes the MPEG scheme that the image data that reads from input store 32 via PCI bridge 30 is decoded under the control of CPU 42, and the result is write among the reproduction of storage 36_1.Specifically, decoder 34_1 under the control of CPU 42 not the decoded result with reference to other image datas the I image data that reads in input store 32 is decoded.In addition, decoder 34_1 is under the control of CPU 42, be arranged in the past in time and decoded result be stored in the I of reproduction of storage 36_1 or the decoded result of P image data by reference, thereby the P image data that reads from input store 32 is decoded.In addition, decoder 34_1 is under the control of CPU 42, by with reference in time before it or thereafter and decoded result is being stored in the I among each reproduction of storage 36_1 or the decoded result of P image data, thereby the B image data that reads from input store 32 is decoded.

In addition, under the control of CPU 42, the decoded image data that its reproduction and output are read from reproduction of storage 36_1 is as image data S38.

CPU 42 will write the input store 32 from the GOP (reproducing data ENC) of computer 2 inputs.In addition, in input store 32 among the reproduction data ENC of storage, the CPU42 operation dispatching is determined decode order in GOP unit of the image data among this GOP.CPU 42 makes decoder 34_1 carry out decoding based on scheduling result.

CPU 42 for example reads from input store 32 with reference to I among the GOP (N-1) of the decoded result of I and P image data decoding and the B image data among P image data and the GOP (N) by PCI bridge 30, and it is outputed to decoder 34_1.

Here, in the present embodiment, with reference to open GOP with different B image datas with reference to the decoded result decoding of the I of GOP and P image data.

for example receive as input from the reproduction initiation command of the CPU 20 of computer 2 time, CPU 42 makes and comprises that a plurality of GOP that reproduce point are performed decoding at decoder 34_1 place.

When for example receive as input from the reproduction initiation command of the CPU 20 of computer 2 time, CPU 42 makes and comprises a plurality of GOP that reproduce point at decoder 34_1,34_2 and 34_3 place are performed decoding.This moment, CPU 42 control decoder 34_1 carry out with the reproduction speed of appointment so that reproduction and output are reproduced point from this to the decoding of B image data, from the read operation of reproduction of storage 36_1.

In addition, CPU 42 manages the GOP of storage in input store 32 and the address of image data based on finishing notice from the transmission of CPU 20 inputs.

Below with the example of the operation of the data handling system 1 shown in the key-drawing 1.

＜the first operation example 〉

Below with the overall operation example of decryption treatment system 1.Fig. 4 and Fig. 5 are the flow charts of example that is used for the overall operation of the data handling system 1 shown in the key-drawing 1.

Step ST1:

The CPU 20 of computer 2 judges that whether indication is used to specify the operation signal of the operation of reproducing the reproduction point among the data ENC from operating equipment 19 inputs.It is designated when judging, and then advances to step ST2, and when judging when not designated as yet the processing of repeating step ST1.

Step ST2:

The CPU 20 of computer 2 reads the GOP that is included in the image data of the reproduction point of appointment the step ST1 and GOP on every side from HDD 12, perhaps totally 3 (a plurality of) GOP.

Step ST3:

The CPU 20 of computer 2 outputs to transcriber 4 by a plurality of GOP that bridge 18 and pci bus 6 will read in step ST2.The CPU 42 of transcriber 4 will write the input store 32 from the GOP of computer 2 inputs by PCI bridge 30.

Step ST4:

The CPU 20 of computer 2 finishes the CPU42 that notice outputs to transcriber 4 with transmission.Transmission is finished notice and is illustrated among the step ST3 address of identification characteristics from computer 2 outputs (transmission) to the GOP of transcriber 4, input store 32 that these GOP are written into and the size of data of GOP.CPU 42 finishes notice with transmission and writes in the control storage 40.In the present embodiment, CPU 20 and CPU 42 keep transmission to finish notice, and finish the GOP of notice management storage in input store 32 based on this transmission.

Step ST5:

After the processing of completing steps ST4, the CPU 42 of transcriber 4 will be ready to complete the CPU 20 that notice outputs to computer 2.

Step ST6:

The CPU 20 of computer 2 judges whether that from operating equipment 19 input operation signals the reproduction initiation command operation of reproducing point is specified in indication.When judge import after, advance to step ST7, when judging as yet input, the then processing of repeating step ST6.

Step ST7:

When judge import after, the CPU 20 of computer 2 will specify the reproduction initiation command that reproduces point to output to the CPU 42 of transcriber 4.

Step ST8:

CPU 42 operation dispatchings of transcriber 4 come according to image data, reproduce speed, reproduce referring-to relation between the direction etc. determine order that following image data is decoded, described image data be in input store 32 the comprising of storage by the image data in the GOP of the image data of the reproduction point of the reproduction initiation command indication of step ST7 input.

Step ST9:

The CPU 42 of transcriber 4 will indicate based on the scheduling result at step ST8 and next the decodes commands of decoded image data be outputed to decoder 34_1.

Step ST10:

Decoder 34_1 reads and decodes by the indicated image data of the decodes commands of importing in step ST9, and decoded result is write each reproduction of storage 36_1.

Step ST11:

The CPU 42 of transcriber 4 based on the reproduction direction of appointment or reproduce speed and scheduling result specify next will be reproduced and the decoded result of output, generate the display command that these decoded results are shown, and it write in the control storage 40.

Step ST12:

The display command that the CPU 42 of transcriber 4 will generate in step ST11 outputs to decoder 34_1.

Step ST13:

Decoder 34_1 reads by the indicated decoded result of the display command of importing among step ST12 from reproduction of storage 36_1, and with its reproduction and output.

Step ST14:

CPU 20 and CPU 42 judges that whether the image data handled to ST13 at step ST9 is the last image data among the GOP.If judging it is last image data, then advance to step ST15, and when judging it and be not, turn back to step ST9, carry out the processing of next image data then.

Step ST15:

CPU 20 and CPU 42 judge whether the GOP under the processed image data is the last GOP that reproduces among the data ENC.When to judge it be last GOP, end process, and, advance to step ST16 when judging when not being.

Step ST16:

The CPU 20 of computer 2 reads next GOP according to reproducing direction and reproducing speed from HDD 12.

Step ST17:

The CPU 20 of computer 2 outputs to transcriber 4 by the GOP that bridge 18 and pci bus 6 will read in step ST19.The CPU 42 of transcriber 4 will write input store 32 from the GOP of computer 2 inputs by PCI bridge 30.

Step ST18:

The CPU 42 that notice outputs to transcriber 4 is finished in the transmission of the GOP that the CPU 20 of computer 2 will export in step ST20.CPU 42 finishes notice with this transmission and writes in the control storage 40.

Step ST19:

After the processing in end step ST21, the CPU 42 of transcriber 4 will be ready to complete the CPU 20 that notice outputs to computer 2.

Step ST20:

The CPU 42 of transcriber 4 for example judges comprising according to reproducing next scheduling of GOP of reproducing the image data of point of direction whether be done (that is, if require scheduling).When judging scheduling and be not done as yet, advance to step ST8, and when judging scheduling and finished, advance to step ST9.

＜the second operation example 〉

To explain the operation of specifying when reproducing speed below.Fig. 6 is the flow chart that is used to explain the operation when specifying the reproduction speed of the data handling system shown in Fig. 1.

Step ST21:

The operating equipment 19 of computer 2 is input to CPU 20 with the operation signal that indication is used to specify the assigned operation that reproduces speed.

Step ST22:

The CPU 20 of computer 2 judges from the reproduction speed of operating equipment 19 inputs whether be lower than the transmission rate that is used for image data is transferred to transcriber 4, for example peak transfer rate.Be lower than if judge, then advance to step ST23, and if be not less than, then advance to the processing of step ST24.For example, in the present embodiment, peak transfer rate is a message transmission rate of reproducing speed corresponding to 5X speed.

Step ST23:

When the CPU 20 of computer 2 judges when reproducing speed and being lower than this transmission rate as judged result in step ST22, then it will form all image datas that reproduce data by bridge 18 and pci bus 6, specifically I, P and B image data, output to transcriber 4, advance to step ST26 then.

Step ST24:

When the CPU 20 of computer 2 judges in step ST22 when reproducing this transmission rate of the fast mistake of speed, it is selected can be with the part of the image data of this transmission rate transmission according to the reproduction speed in forming all a plurality of image datas that reproduce data.

Fig. 7 is the figure that is used to explain the high priority data order when the computer 2 of data handling system shown in Figure 11 arrives transcriber 4 with transfer of data.Fig. 7 A is the figure of specific example that is used to explain the priority of I, P and B image data.Fig. 7 B is the figure that is used to explain corresponding to the specific example of the pattern of the output of the priority of I, P and B image data.

Specifically, the CPU 20 of computer 2 for example selects I, P and B image data according to the reproduction speed in this priority from form a plurality of image datas that reproduce data shown in Fig. 7 A.Specifically, judging when reproducing speed and being lower than peak transfer rate, CPU 20 outputs to CPU 20 with I, P and B image data shown in Fig. 7 B.When judging the fast mistake of reproduction speed peak transfer rate, CPU 20 is according to reproducing the rate selection image data faster, for example shown in Fig. 7 B, I and P image data and part B image data, I and P image data, part I image data and P image data, I image data and part I image data.

Step ST25:

The data that the CPU 20 of computer 2 will select in step ST 24 by bridge 18 and pci bus 6 output to transcriber 4.The CPU 42 of transcriber 4 will write input store 32 from the data of computer 2 inputs by PCI bridge 30.The CPU 20 of computer 2 finishes the CPU 42 that notice TCN outputs to transcriber 4 with transmission.CPU 42 finishes notice TCN with transmission and writes in the control storage 40.The CPU 42 of transcriber 4 will be ready to complete the CPU 20 that notice outputs to computer 2.

Step ST26:

The CPU 42 of transcriber 4 for example carries out the scheduling of the GOP that comprises the image data of putting according to next reproduction of reproducing speed or reproduction direction, and will indicate the decodes commands of image data to output to decoder 34_1 based on scheduling result.Decoder 34_1 reads and decodes by the indicated image data of decodes commands from input store 32, and decoded result is write among the reproduction of storage 36_1.The CPU 42 of transcriber 4 identifies based on the reproduction speed of appointment and scheduling result decoded result reproduced and output, and will indicate the display command of these decoded results to write control storage 40.The CPU 42 of transcriber 4 outputs to decoder 34_1 with display command, and decoder 34_1 reads by the indicated decoded result of display command to reproduce and output from reproduction of storage 36_1.

The specific example of the operation when will be explained in the reproduction speed that changes data handling system 1 below.Fig. 8 is the flow chart that is used to explain the specific example of the operation when changing the reproduction speed of the data handling system shown in Fig. 1.

Step ST31:

When the operation signal that receives from operating equipment 19 as input, when indication was used to change the command operation of reproducing speed, the CPU 20 of computer 2 checked current reproduction speed by transcriber 4, and obtained the data of the current reproduction speed of indication.

Step ST32:

The CPU 20 of computer 2 judges whether to utilize the reproduction speed of change and the current reproduction speed that obtains in step ST31 is jumped in peak transfer rate.Specifically, when for example peak transfer rate was the message transmission rate of reproducing corresponding to 5X speed, CPU 20 judged whether to jump to 1X speed and reproduce and change peak transfer rate by reproducing from 1X speed to jump to that 6X speed is reproduced or reproduce from 6X speed.Do not change peak transfer rate if judge, then advance to step ST33 by jumping, and if judge by jumping and change, then advance to step ST34.

Step ST33:

The CPU 20 of computer 2 will reproduce speed by bridge 18 and pci bus 6 and change the CPU 42 that order outputs to transcriber 4, advance to step ST37 then.

Step ST34:

Whether the change of the reproduction speed after the CPU 20 of computer 2 judges from current reproduction speed to change is to increase.As the result who judges, be when increasing when judging it, advance to the processing of step ST35, and, advance to the processing of step ST36 when judging when not being increase.

Step ST35:

When reproduction speed is lower than peak transfer rate, 20 of the CPU of computer 2 will reproduce desired data and output to transcriber 4, advance to step ST37 then.For example, when peak transfer rate is when reproducing the transmission rate of speed corresponding to 5X, the CPU 20 of computer 2 according to change to that for example 6X speed is reproduced or 15X speed reproduction etc. in reproduction rate selection I and P image data etc., and by bridge 18 and pci bus 6 I and P image data are outputed to transcriber 4, and it is write in the input store 32 of transcriber 4.

Fig. 9 is the figure that is used for explaining step ST35 shown in Figure 8 specific example of the operation of data handling system when the reproduction speed that is lower than peak transfer rate changes to higher reproduction speed.

As shown in Figure 9, for example, when 1X speed is reproduced, I, P and B image data are write the input store 32 of transcriber 4 from computer 2, the data that read from input store 32 according to decoding scheduling and decoded, and are reproduced output signal S38 and are output according to reproducing scheduling under the control of CPU 42.In Fig. 9, with the data of *, with+data, have ++ data and not the data of affix note be illustrated in the image data that comprises among the different GOP.Changing a some CP1, for example, changing to the command signal that 6X speed is reproduced if receive to be used for reproducing from 1X speed, then dilution (thinning) afterwards 6X speed reproduce desired data and be transmitted, and reproduce output signal S38 according to reproducing scheduling output.

Step ST36:

When the CPU 20 of computer 2 judges the reproduction speed that changes to change from current reproduction speed in the determining step of step ST34 is not to increase, promptly, the change of the reproduction speed after CPU 20 judges from current reproduction speed to change is to reduce, then its low speed of carrying out explained later changes processing, to reproduce desired data and output to transcriber 4, and advance to the processing of step S37.

Step S37:

Receive the signal of conduct input from the CPU 20 of computer 2 as the CPU 42 of transcriber 4, when indication is used for order that the reproduction speed with appointment begins to reproduce, as mentioned above, it reads image data from input store 32, decoder 34_1 is decoded to it, decoded result is write among the reproduction of storage 36_1, and from reproduction of storage 36_1 it is read, and reproduce, export with the reproduction speed of appointment.

As mentioned above, in data handling system 1, whether the reproduction speed of judging 4 pairs of image datas of transcriber at the CPU 20 of computer 2 is lower than the peak transfer rate that is used for image data is transferred to transcriber 4, and judge the maximum speed of reproducing as judged result and be lower than transmission rate, it will form all image datas that reproduce data and output to transcriber 4, and it is write the input store 32 of transcriber 4.The CPU 42 of transcriber 4 will write the input store 32 from the image data of computer 2 inputs, decoder 34_1 is decoded to the image data that reads from input store 32, and the reproduction speed with CPU 20 appointments of computer 2 is reproduced it, so when maximum reproduction speed is lower than transmission rate, can improve the response that slow motion is reproduced.

Promptly, when maximum reproduction speed is lower than transmission rate, by comprising that all I, the P of data reproduced in formation and the GOP of B image data is transferred to transcriber 4 from computer 2, even the CPU 42 of transcriber 4 changes to the reproduction of 1X speed from for example reproducing (speed) corresponding to the 5X speed of peak transfer rate, because 1X speed is reproduced desired data and is stored in the input store 32, thus can the short time from input store 32 reading of data and carry out 1X speed and reproduce.

In addition, when the CPU 20 of computer 2 judges the fast mistake of reproduction speed peak transfer rate, because the part of the image data that it will can transmit with peak transfer rate according to the reproduction speed in form reproducing all a plurality of image datas of data outputs to transcriber 4, even be lower than peak transfer rate, also can reproduce the picture that has than good quality according to reproducing speed so reproduce speed.

In addition, this moment,, has high-quality picture so can reproduce the speed reproduction according to this because CPU 20 outputs to transcriber 4 with this order of priority with I, P and B image data.

In addition, because CPU 20 writes image data in the input store 32 of transcriber 4, decoding and reproduce the image data that writes in the input store 32 with the reproduction speed of appointment then, CPU 20 only need carry out simple processing and send the order of specifying reproduction speed, so that transcriber 4 reproduces data with the reproduction speed of appointment, so the processing load of CPU 20 is less.

Specifically, because CPU 20 generates management information (notice TCN is finished in transmission), be used in transcriber 4 reference when input store 32 reads and reproduce image data, and the management information that is generated is outputed to transcriber 4, so the processing load of CPU 20 is less.

In addition, by the equipment that can carry out high-speed transfer with decoder is provided between memory device and decoder, the compressed picture data that in this equipment, keep several GOP, and the image data that this equipment is certainly read is decoded as required, thereby, even utilize unsettled equipment of short time, for example utilize for example HDD of IDE connection, also can realize stable reproduction.

In addition, when utilizing MPEG or other compression schemes to reproduce the image data of the compression that comprises I, P and B image data etc. by bidirectional interframe predictive, during the image data of for example long GOP type compression, by selecting according to the data of the transmission rate transmission of reproducing speed and memory device and export selected data, can reduce the load in the transmission process of HDD or other memory devices.

Promptly, in the present invention, can carry out the processing of the image data that is used to show compression from any variable reproduction point to be rendered to from 0X speed, as long as the data of compression that will be reproduced are in input store 32 corresponding to the speed of the seamless variation of reproduction speed of peak transfer rate (for example 5X speed reproduce).

In addition, can use I image data and P image data, be used for being rendered to 15X speed and reproduce with 5X speed.In addition, change reproduction speed owing to send order by for example CPU 20 to CPU 42, in case receive this order, CPU 42 just change reproduces speed, is changed thereby reproduce speed, so the processing load on the CPU 20 is less.

In addition, by in initial condition with the transfer of data of a plurality of GOP to input store 32, even under some unsettled situation of transmission of HDD 12, also can read and stably decode and be reproduced in the data of storage in the input store 32.

In addition, the data of these a plurality of GOP are delayed the time that just is used to be transferred to input store, but for example by be set in the transcriber 4 at image data that will compression and press reproduce button before, the transfer of data of these a plurality of GOP is arrived input store, thereby can improve the response of operational order.

[changing to first specific example of the processing of low speed]

At the step ST36 shown in Fig. 8, CPU 20 carries out and handles to change to lower speed when the fast reproduction speed of crossing peak transfer rate changes to slower reproduction speed.In first specific example, when for example changing reproduction speed, CPU 20 retransmits the GOP of the desired data of reproduction with just reproduced GOP.For example, 4 peak transfer rate reproduces corresponding to 5X speed from computer 2 to transcriber.When reproducing from 6X speed when changing to 4X speed and reproducing, CPU 20 for example reproduces 6X speed the transmission of image data I, P, P, P and P after the desired dilution and changes into for example transmission of image data I, B, P, B, B, P, B, B, P, B and the B of not diluted when 4X speed is reproduced.

Yet for stable reproduction, input store 32 keeps I, P, P, P, P, P and the P image data of a plurality of GOP.The data of storage only can show on display screen according to I, P, P, P, P, P and P image data in input store 32.

Therefore, CPU 20 receives order, to change to the reproduction speed that is lower than peak transfer rate from the fast reproduction speed of crossing peak transfer rate, stop the reproduction of transcriber 4 temporarily, all a plurality of image datas that form corresponding to the reproduction data of a frame of reproduction period are outputed to transcriber 4, and make transcriber 4 with the reproduction speed of appointment from the reproduction point beginning that is stopped temporarily according to these data of reproduction data reproduction.

Below, will this is explained in more detail with reference to Figure 10 and Figure 11.Figure 10 will reproduce speed to cross peak transfer rate this changes to the flow chart of first specific example of low processing of reproducing speed from fast among the step ST34 shown in Figure 8.Figure 11 is the figure that is used to explain first specific example that changes to low speed shown in Figure 10.

For example, as shown in figure 11,6X speed is reproduced desired data and is imported into input store 32, and reproduces output signal S38 according to reproducing scheduling output under the control of CPU 42.In Figure 11, with the image data of *, with+image data and not the image data of affix note show the image data that in the GOP that separates, comprises.

To explain the step of the flow chart of Figure 10 below.

Step ST51:

The CPU 20 of computer 2 checks that the frame of current reproduction obtains the data relevant with the frame of current reproduction.

Step ST52:

When the CPU 20 of computer 2 is for example changing the order that some CP2 place receives the conduct input, be used for when the fast reproduction speed of crossing peak transfer rate changes to the reproduction speed that is lower than peak transfer rate, its order that will be used for temporarily stopping the reproduction of transcriber 4 outputs to transcriber 4.The CPU 42 of transcriber 4 receives this order, as shown in figure 11, stops (freezing) temporarily and reproduces.This moment, be shown as still picture at the frame that changes some CP2 place.

Step ST53:

All a plurality of image datas that the CPU 20 of computer 2 will form corresponding to the reproduction data (GOP) of just reproduced frame output to transcriber 4.As shown in figure 11, input store 32 quilts of transcriber 4 are with the data from computer 2 inputs.

Step ST54:

The CPU 20 of computer 2 outputs to transcriber 4 by bridge 18 and pci bus 6 with order, is used for making that the reproduction speed according to appointment begins to reproduce data from the reproduction point that stops at transcriber 4 temporarily.

In first specific example, as mentioned above, owing to comprise that at a change point CP2 place GOP of just reproduced frame is transmitted once more, reproduced up to this frame, so the time is spent the reproduction to the next frame behind the frame that reproduces, and stop at this time durations display screen, if but this end of transmission just can begin to reproduce data reliably with the reproduction speed after changing from changing some CP2 temporarily.

[changing to second specific example of the processing of low speed]

Be used for changing to second specific example than the processing of low velocity in the step ST36 of Fig. 8, for example, when reproduction speed was changed, the desired data of reproduction of the next GOP after the GOP that CPU 20 will be just reproduced outputed to transcriber 4.

Figure 12 is the flow chart that is used for changing to from the fast reproduction speed of crossing peak transfer rate second specific example of the processing of hanging down reproduction speed that is used for the step ST36 of key-drawing 8.Figure 13 is used to explain that low speed shown in Figure 11 changes the figure of second specific example of handling.In Figure 13, with the image data of *, with+image data and not the image data of affix note show the image data that in the GOP that separates, comprises.

To explain the step of the flow chart of Figure 12 below.

For example, as shown in figure 13,6X speed is reproduced desired data and is imported into input store 32.

Step ST61:

The CPU 20 of computer 2 checks that the frame of current reproduction obtains the data about the frame of current reproduction.

Step ST62:

If receive order from operating equipment 19 at a change point CP3 place, be used for changing to the reproduction speed that is lower than peak transfer rate from the fast reproduction speed of crossing peak transfer rate, then the CPU 20 of computer 2 will empty the order output transcriber 4 of the buffering of input store 32.Then, according to this order, the input store 32 of transcriber 4 is cleared.

Step ST63:

All a plurality of image datas that the CPU 20 of computer 2 will form corresponding to the reproduction data (GOP) of the next frame after changing the just reproduced frame in some CP3 place output to transcriber 4.In addition, make transcriber 4 reproduce data with the reproduction speed of appointment.

In second specific example, as mentioned above, when when changing some CP3 place change reproduction speed, the desired data of reproduction that CPU 20 will begin from next GOP behind the just reproduced GOP output to transcriber 4, so current just reproduced GOP is shown with 6X speed in the same old way, response to the change of reproducing speed is finally slack-off, and next GOP does not finish transmission during reproducing current just reproduced GOP, then display screen finally stops temporarily, if but it finishes transmission, then can begin to reproduce reliably from next GOP that changes some CP3 with the reproduction speed of appointment.

[changing to the 3rd specific example] than the processing of low velocity

Be used for changing to the 3rd specific example of the processing of speed in the step ST36 of Fig. 8, for example, when reproduction speed was changed, 20 insufficient data that will begin from the reproduction position of CPU outputed to transcriber 4.

Figure 14 is the flow chart that is used for changing to from the fast reproduction speed of crossing peak transfer rate the 3rd specific example of the processing of hanging down reproduction speed that is used for the step ST36 shown in the key-drawing 8.Figure 15 is used to explain the figure that is used to change to than the 3rd specific example of the processing of low rate.In Figure 15, with the image data of *, with+image data and the image data that in the GOP that separates, comprises of the image data indication of affix note not.

For example, as shown in figure 15,6X speed is reproduced desired data and is imported into input store 32.

To explain the step of the flow chart of Figure 14 below.

Step ST71:

The CPU 20 of computer 2 checks that the frame of current reproduction obtains to relate to the data of the frame of current reproduction.

Step ST72:

If the CPU 20 of computer 2 receives order at a change point CP4 place from operating equipment 19, be used for changing to the reproduction speed that is lower than peak transfer rate from the fast reproduction speed of peak transfer rate excessively, then the CPU 20 of computer 2 will be included in an insufficient frame that changes a plurality of image datas (GOP) of putting the just reproduced frame in CP4 place and output to transcriber 4.That is, anchor frame (I and P image data) has been stored in the input store 32, so remaining B image data is output to transcriber 4.

Step ST73:

If in the reproduction of the enough next frames of insufficient frame of step ST72 transmission, then CPU 20 advances to step ST74, and if not enough, then advance to step ST75.

Step ST74:

The CPU 20 of computer 2 outputs to transcriber 4 with order, is used for stopping the reproduction of transcriber 4 temporarily.

Step ST75:

The CPU 20 of computer 2 will output to transcriber 4 at the frame of step ST72 transmission.

In the 3rd specific example, as mentioned above, until frame is changing insufficient frame that the reproduced just transmission in some CP4 place comprises the GOP of just reproduced frame, if it is so timely for the transmission of insufficient frame the transmission of the next frame behind the frame that changes some CP4 place, can prevent that then display screen from stopping temporarily, and make it possible to begin to reproduce from changing some CP4 with the reproduction speed after changing.If the transmission of insufficient frame is untimely, then display screen is stopped at the frame place that changes some CP4 temporarily, but then with the possibility that becomes of the speed reliable reproduction after changing.

In addition, in first to the 3rd specific example, reproduction is stopped temporarily, but arrives shown in Figure 180 as Figure 16, by showing, can under the situation that does not temporarily stop to reproduce, reproduce data to being transferred to input store 32 and having finished the anchor frame of decoding at transcriber 4 places.

Figure 16 shows the figure that reproduces the situation of decoded anchor frame in first specific example.Figure 16 only is an example.Be retransmitted owing to comprise the GOP of current just reproduced frame (P8), the interval during to the end of transmission when sending the order that changes to 1X speed, the anchor frame of storage in input store 32 (P11, P14, ^*I2, ^*P5, ^*P8, ^*P11) reproduced with 3X speed, and with this speed re-transmission end.Therefore, 1X speed is reproduced next behind the * P11 ^*B12 begins.Notice that the reason that 3X reproduces is that the anchor frame constitutes 1/3 of all frames of forming GOP.

Figure 17 shows the figure that reproduces the situation of decoded anchor frame in second specific example.Figure 17 only is an example.Because comprising next GOP behind the GOP of current just reproduced frame (P8) is retransmitted, to still comprising of memory end current just reproduced frame the frame (P11, P14) of GOP reproduce after, can with 1X speed reproduce the frame that reproduces next GOP fast ( ^*B0, ^*B1, ^*I2, ^*B3).

Figure 18 shows the figure that reproduces the situation of decoded anchor frame in the 3rd specific example.Figure 18 only is an example.Owing to only transmit the anchor frame except those frames that are transferred to input store 32 in advance, in these 3 kinds of specific example, the time that 3X speed is reproduced is the shortest.

Next, the flow chart that uses Figure 19 is explained the example of the operation of the situation of in first specific example, reproducing decoded anchor data shown in Figure 16.

Step ST81:

The CPU 20 of computer 2 checks that the frame of current reproduction obtains the data relevant with the frame of current reproduction.

Step ST82:

When the CPU 20 of computer 2 receives order from operating equipment 19, be used for from the fast reproduction speed of crossing peak transfer rate change to be lower than peak transfer rate reproduction speed (at Figure 16, from 6X speed to 1X speed) time, its anchor frame that will be used to continue to reproduce from input store 32 outputs to transcriber 4.Receive this order, the CPU 42 of transcriber 4 continues to reproduce the anchor frame, as shown in figure 16.In Figure 16 and since have only the anchor frame (that is, and have only GOP all image datas 1/3) reproduced, so cause 3X speed to be reproduced.

Step ST83:

All a plurality of image datas that the CPU 20 of computer 2 will form corresponding to the reproduction data (GOP) of just reproduced frame output to transcriber 4.As shown in figure 16, input store 32 quilts of transcriber 4 are with the data from computer 2 inputs.

Step ST84:

For each the anchor frame that reproduces at step ST82, the CPU 20 of computer 2 judges whether the next frame behind the frame just reproduced in transcriber 4 has been transferred to transcriber 4.Be transferred to if judge, then advance to step ST85, and if judge and be not transferred to, then return step ST82.

Step ST85:

When being transferred to transcriber 4 at the next frame of step ST84 behind just reproduced frame, then the CPU 20 of computer 2 outputs to transcriber by bridge 18 and pci bus 6 with order, is used for the next frame after speed (is 1X speed at Figure 16) with appointment is reproduced just reproduced frame.

In an identical manner, in second specific example, be different from the buffering that in the step ST62 of Figure 12, empties input store 32, but be reproduced in the input store 32 the anchor frame of storage with 3X speed, next GOP behind frame just reproduced in step ST63 finishes, and begins 1X speed then and reproduce when the end of transmission.In an identical manner, also be so in the 3rd specific example, not in the step ST74 of Figure 14, to stop to reproduce temporarily, but be used for being output to transcriber 4 in the order of the anchor frame of input store 32 storages with conventional sequential reproduction.In addition, at step ST75, when the end of transmission, beginning 1X speed is reproduced.

To shown in Figure 180, the frame that second specific example requires 3X speed to reproduce lacks than first specific example as Figure 16, and what the 3rd specific example required then lacks than second specific example.

Figure 20 is used to explain the figure that the data treatment system is made amendment according to the embodiment of the invention.The data handling system 1a of present embodiment uses a plurality of decoders to be used for transcriber 4a, and for example, as shown in figure 20, decoder 34_1 is to 34_3.To only explain distinctive points below.

Transcriber 4a for example have PCI bridge 30, input store 32, decoder 34_1 to 34_3, reproduction of storage 36_1 to 36_3, selector 38, control storage 40, CPU42 and control bus 46.

Decoder 34_1,34_2 and 34_3 utilize the MPEG scheme that the image data that reads from input store 32 by PCI bridge 30 is decoded under the control of CPU42, and the result is write among the reproduction of storage 36_1 to 36_3.Specifically, decoder 34_1,34_2 and 34_3 under the control of CPU 42 not the decoded result with reference to other image datas the I image data that reads in input store 32 is decoded.In addition, decoder 34_1,34_2 and 34_3 are under the control of CPU 42, by with reference to being arranged in time in the past and having the I of the decoded result of storing to 36_3 at reproduction of storage 36_1 or the decoded result of P image data, thereby the P image data that reads from input store 32 is decoded.In addition, decoder 34_1,34_2 and 34_3 are under the control of CPU 42, with reference in time preceding or in the back and have the I of the decoded result of storing in the 36_3 at reproduction of storage 36_1 or the decoded result of P image data, thereby the B image data that reads from input store 32 is decoded.

Decoder 34_2 has the configuration identical with decoder 34_1 with decoder 34_3.They utilize the MPEG scheme that the view data of importing via PCI bridge 30 is decoded, and write results to separately reproduction of storage 36_2 and 36_3.That is, by carrying out the decoding that utilizes dispersion treatment as required, decoder 34_1,34_2 and 34_3 can carry out high-speed decoding.

Selector 38 switches under the control of CPU 42 and reproduces selectively and export the decoded image data that reads from reproduction of storage 36_1,36_2 and 36_3, as reproduction output signal S38.

It is basic identical that remaining operates in top embodiment, and all will omit its explanation.

As mentioned above, according to data handling system 1, when output is used for and will reproduces speed when changing to the order of low speed at a high speed, the image data that outputs to transcriber 4 in advance from computer 2 is used as and reproduces speed with the centre and begin to reproduce, and during this period, inadequate amount is output to transcriber 4 from computer 2.Therefore, will reproduce speed after change to the order of low speed at a high speed having exported, just can smoothly carry out reproduction at short notice with the low speed after the change.When image data is high-resolution (HD) image or when having other images of mass data, perhaps to compare with GOP commonly used when having the long GOP that in each GOP, has relatively large image data using, top effect is especially remarkable.That is, when image data was HD image or other images with mass data, bigger 4 image data retransmitted loss to speed from computer 2 to transcriber from causing to the change of low speed at a high speed.According to data handling system 1, as mentioned above, when the rapid change order from high speed to low speed takes place, can reproduce with the speed between them immediately.In addition, for I, the P, B or other image datas that use reference configuration, the rapid change from high speed to low speed causes the time to be consumed, and is all assembled up to next desired all image datas of decoding.When using long GOP, this trend is especially big.In the present embodiment, as mentioned above, under certain conditions, just desired a plurality of image datas can be maintained in the transcriber 4 behind rapid change.

The invention is not restricted to the foregoing description.In addition, in the above embodiments, MPEG is illustrated as encoding scheme, but H.264/AVC the present invention also can be applied to (advanced video coding) etc. similarly.

In the above embodiments, explained that the image data that compresses is stored in the situation among the HDD 12, but the present invention is not limited to this, for example, by input/output interface etc., the present invention also can store on CD, magneto optical disk, semiconductor memory, disk or other various storage mediums.In addition, connection mode is not limited to the connection by cable etc.For example, also can be the connection mode that utilizes such as wired or wireless connection from the other types of outside.

In addition, in the above embodiments, explained and utilized hardware to carry out the situation of a series of processing, but the invention is not restricted to this with those functions.Also can use software to carry out these processing.This moment, when utilizing software to carry out a series of processing, can realize various types of functions in the computer by various programs are installed to, the program that wherein forms software is built in the specialized hardware.For example, be installed to general purpose personal computer etc. from for example storage medium.In addition, storage medium for example comprises CD, magneto optical disk, semiconductor memory, disk or other various storage mediums, need not many speeches.In addition, for example also can install them in the all-purpose computer by internet or the various types of programs of other network download.

In addition, in the above embodiments, it is specifically not limited to reproduce speed.The present invention can be widely applied to the particular procedure of carrying out the transcriber that reproduces operation with any variable reproduction speed.

Notice in the above embodiments, the CPU 20 of computer 2 judges whether the reproduction speed of transcriber 4 is lower than peak transfer rate, and carries out processing based on the result of this judgement, but the invention is not restricted to this.For example, CPU 20 also can make top judgement based on transmission rate that depends on equipment or default transmission rate.

In addition, the example of block configuration during the block configuration of these embodiment.The invention is not restricted to shown example.

In addition, situation by coded data that store compressed in HDD 12 is crossed is suitable provide data that one group of read flag indication reads from HDD 12 whether effectively, provide one group separate the code labeling indication in constantly validity of decoding scheduling, one group of show tags indication in the validity of scheduling when showing decoded data etc. as metadata, and upgrade this multi-series mark group automatically, thereby can management and dispatching according to reproducing speed and direction.This moment, the past multi-series scheduling of the lastest imformation of processing of use variable speed reproducing and mark group can be used as and independently dispatches metadata (historical information) management.This can be described as be in the coded data of compression or as required in the storage medium syntax of separate, stored among the HDD 12 for example.

In addition, the number of the number of decoder, memory bank, decoder ID etc. also can be used as metadata (assembly historical information) management.In addition, reproduction speed, reproduction direction etc. also can be used as metadata (representation of the historical information) management.This moment, if necessary, metadata can be described as be in the coded data of compression or in the storage medium syntax of separate, stored among the HDD 12 for example.This by reference metadata (historical information) can be reused the scheduling of carrying out in the past, and can faster more accurate ground operation dispatching.Notice that this metadata also can make up, so that externally the device place is as for example data base administration.

Notice that in the above embodiments, the present invention also can be applied to decoder 34_1 (34_2 and 34_3) not during the coded data of the complete decoding compression of store in the situation of (decoding to the centre) in HDD 12.Specifically, for example, the present invention also can be applied to decoder 34_1 (34_2 and 34_3) and only variable length code and inverse quantization be carried out decoding and do not carry out in the situation of inverse DCT, and perhaps but its is carried out inverse quantization variable length code is not carried out in the situation of decoding, or the like.In this case, for example, decoder (34_2 and 34_3) can generate what of for example indicating the as many as Code And Decode of processing that their carry out (this information that for example, the inverse quantization stage) historical information, and output and the data of complete decoding not link in the stage.

In addition, in the above embodiments, the incomplete coded data of HDD 12 storages (for example, it has been carried out DCT and quantification, but it has been carried out variable length code), and the historical information of memory encoding and decoding as required, but the present invention also can be applied in such situation, in this case, decoder (34_2 and 34_3) can be carried out decoding to the incomplete coded data that is provided under the control of CPU 20, and is converted into baseband signal.Specifically, the present invention also may be used on such situation, in this case, decoder 34_1 (34_2 and 34_3) for example to being employed DCT and having quantized still not use the data execution inverse DCT and the inverse quantization of variable length code, does not still carry out the decoding of variable length code.In addition, in this case, for example CPU 20 can obtain in HDD 12 historical information of the Code And Decode of coded data fully that is linked to not of storage, and dispatches decoder 34_1 (34_2 and 34_3) based on this historical information and carry out decoding.

In addition, in the above embodiments, the incomplete coded data of HDD 12 storages, and the historical information of memory encoding and decoding as required, but the present invention also can be applied to such situation, in this case, decoder 34_1 (34_2 and 34_3) complete coded data complete decoding (only decoding to the interstage) not under the control of CPU 20 to being provided.In addition, in this example, for example CPU 20 can obtain in HDD 12 storage with the historical information of the Code And Decode that links of coded data fully, and based on this message scheduling decoder 34_1 (34_2 and 34_3).In addition, in this case, decoder 34_1 can generate the historical information of Code And Decode as required to 34_3, and discharging chain is received the not historical information of the data of complete decoding.In other words, too invention can also be applied to such situation, and in this case, decoder 34_1 (34_2 and 34_3) is operating part decoding (carrying out the part steps of decoding) under the control of CPU 20.CPU 20 can obtain in HDD12, to store with the complete historical information of the Code And Decode that links of coded data, and based on the decoding of this message scheduling decoder 34_1 (34_2 and 34_3).Decoder 34_1 (34_2 and 34_3) also can generate the historical information of Code And Decode as required, and discharging chain is received not the historical information of coded data fully.

In addition, HDD 12 can also store the information of the history of the Code And Decode processing that links about the encoding stream data with compression, and CPU 20 can dispatch the decoding of the encoding stream data of compression based on this information about the history of encoding process and decoding processing.In addition, even work as the encoding stream data that decoder 34_1 (34_2 and 34_3) can be decoding compressed, and when under the control of CPU 20, being converted into baseband signal, it also can generate the information about the history of Code And Decode as required, and makes it can be linked to this baseband signal and be output.

Notice that in the above embodiments, transcriber 4 is interpreted as having a plurality of decoders, but the present invention can be applied in the situation of single decoder also.This moment, this single decoder not only receives, decodes and show or exports the coded data of compression, but also can with the identical mode of explaining above receive compression coded data, with its partial decoding of h to the interstage and according to the historical information of Code And Decode with its output to outside, receiving unit coded data, with its decoding and be converted into baseband signal to output to outside or receiving unit coded data, its partial decoding of h is outputed to the outside to the interstage and according to the historical information of Code And Decode with it.

In addition, in the above embodiments, CPU 20 and CPU 42 separate configurations, but the invention is not restricted to this.For example, can imagine, also can be CPU 20 and CPU 42 configurations is as a whole with the single cpu of control transcriber 4.In addition, even when CPU 20 and CPU 42 separate configurations, CPU 20 and CPU 42 also can be formed on the single chip.

In addition, when CPU 20 and CPU 42 separate configurations, the section processes of being carried out by CPU 20 is in the above-described embodiments for example carried out by 42 time-divisions of CPU, the section processes of being carried out by CPU 42 is for example carried out by 20 time-divisions of CPU.Also can use the processor that to carry out dispersion treatment to realize CPU 20 and CPU 42.

In addition, for example, transcriber 4 can be configured to and can be connected to network, and can be carried out in the CPU of another device that is connected by network with the section processes at least that CPU 42 carries out by CPU 20 in the above-described embodiments.Similarly, in the above embodiments.Memories 32,40 etc. still be the invention is not restricted to this by separate configurations.Can imagine, also can dispose these memories with the single memory in the transcriber 4.

In addition, in the above embodiments, explained HDD 12, decoder 34_1 is connected via bridge and bus to 34_3 and selector 38, and is integrated into the situation of transcriber, but the invention is not restricted to this.For example, the present invention also may be used on such situation: connect the part these assemblies from the outside wired or wirelessly; With other various connection modes these assemblies are connected to each other.

In addition, in the above embodiments, explained that the flow data that compresses is stored in the situation among the HDD, but the invention is not restricted to this.For example, the present invention also may be used in such situation, in this case, is just reproducing and the flow data handled is stored in CD, magneto optical disk, semiconductor memory, disk or other various storage mediums.

In addition, in the above embodiments, CPU 42, memory 32, memory 40, decoder 34_1 (34_2 and 34_3) and selector 38 are installed to (for example, pci card or PCI-Express card) on the same expansion card, but the invention is not restricted to this.For example, the transmission speed between card is when high, and PCI-Express or other technologies can be used to these assemblies are installed to independently on the expansion card.

In addition, in this manual, " system " means the logical collection of multiple arrangement.And no matter the devices of different configurations whether in same shell.

Present invention can be applied to and be used for system that the data of reproducing are reproduced.

It will be understood by those of skill in the art that and depend on design requirement and other factors, can make various modifications, combination, sub-portfolio and change, as long as they are in claims or its scope that is equal to.

Claims (21)

1. a data processing equipment is used for outputing to transcriber with reproduction with forming a plurality of image datas that reproduce data,

Described data processing equipment comprises treatment circuit, be used to judge whether described transcriber is lower than the transmission rate that is used for described image data is transferred to described transcriber to the reproduction speed of described image data, and judge all image datas that will form described reproduction data when described reproduction speed is lower than described transmission rate in result and output to described transcriber as described judgement.

2. data processing equipment as claimed in claim 1, wherein, when judging the described transmission rate of the fast mistake of described reproduction speed, described treatment circuit according to described reproduction speed will be in forming all a plurality of image datas of described reproduction data can output to described transcriber with the part of the described image data of described transmission rate transmission.

3. data processing equipment as claimed in claim 2, wherein, a plurality of image datas of the described reproduction data of described formation comprise the first kind image data and the second class image data, wherein in first kind image data, the decoded result of the described transcriber of reference when other image datas are decoded, in the second class image data, reference decoder result not when other image datas are decoded, and

When judging the described transmission rate of the fast mistake of described reproduction speed, described treatment circuit will output to described transcriber at the preferential described first kind image data of the described second class image data of ratio in the described a plurality of image datas that form described reproduction data according to described reproduction speed.

4. data processing equipment as claimed in claim 3,

Comprise I image data of not decoding and the P image data of decoding as described first kind image data with reference to the decoded result of other image datas with reference to the decoded result of other image datas,

Comprise the B image data of decoding as the described second class image data with reference to the decoded result of other image datas,

When judging the described transmission rate of the fast mistake of described reproduction speed, described treatment circuit priority orders with I image data, P image data and B image data in a plurality of image datas that form described reproduction data outputs to described transcriber.

5. data processing equipment as claimed in claim 1, wherein, described treatment circuit is write described image data in the input store of described transcriber, and decoding and reproduce the described image data that is written in the described input store with the reproduction speed of appointment.

6. data processing equipment as claimed in claim 1, wherein, when in the input store of described image data being write described transcriber, described treatment circuit generate will reference when described input store reads described image data with reproduction when described transcriber management information, and the management information of described generation outputed to described transcriber.

7. data processing equipment as claimed in claim 1, wherein, described treatment circuit judges whether described transcriber is lower than the peak transfer rate that described image data is transferred to described transcriber to the reproduction speed of described image data, and when the result as described judgement judges described reproduction speed and is lower than described peak transfer rate, all image datas that form described reproduction data are outputed to described transcriber.

8. data processing equipment as claimed in claim 1, wherein, described treatment circuit receives and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, stop the reproduction of described transcriber temporarily, all a plurality of image datas that form with the just reproduced corresponding described reproduction data of image data are outputed to described transcriber, and make described transcriber begin to reproduce described reproduction data from the reproduction point that is stopped temporarily with described reproduction speed.

9. data processing equipment as claimed in claim 1, wherein, described treatment circuit receives and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, all a plurality of image datas that form with the just reproduced corresponding described reproduction data of image data are outputed to described transcriber, described image data in the input store that writes on described transcriber is reproduced by described transcriber under the situation of not specifying reproduction speed, and be output under the situation of described transcriber at the corresponding image data of next image data, make described transcriber reproduce described reproduction data from the corresponding described image data of next image data with the described image data that is just being reproduced by described transcriber with described reproduction speed with the described image data that is just being reproduced by described transcriber.

10. data processing equipment as claimed in claim 1, wherein, described treatment circuit receives and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, all a plurality of image datas that form with the corresponding described reproduction data of next image data of the image data that is just being reproduced by described transcriber are outputed to described transcriber, and make described transcriber reproduce described reproduction data with described reproduction speed.

11. data processing equipment as claimed in claim 1, wherein, described treatment circuit receives and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, all a plurality of image datas that form with the corresponding described reproduction data of next image data of just reproduced image data are outputed to described transcriber, make described transcriber under the situation of not specifying the reproduction speed that is used for described transcriber, reproduce all described image datas that write on described input store during this period, and be output under the situation of described transcriber at the corresponding image data of next image data, make described transcriber reproduce described reproduction data from the corresponding described image data of next image data with the described image data that is just being reproduced by described transcriber with described reproduction speed with the described image data that is just being reproduced by described transcriber.

12. data processing equipment as claimed in claim 1, wherein, described treatment circuit receives and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, to comprise that the image data the image data in the input store that is written to described transcriber in the image data of the described reproduction data of formation of just reproduced image data outputs to described transcriber, and during the reproduction of next image data of the enough just reproduced image datas of the output of the described image data the image data in being written to described input store, make described transcriber reproduce described reproduction data with described reproduction speed.

13. data processing equipment as claimed in claim 12, wherein, the output of the described image data the image data in being written to described input store is inadequately during the reproduction of just reproduced image data, this data processing equipment stops the reproduction of described transcriber temporarily, and makes described transcriber reproduce described reproduction data with described reproduction speed when described end of input.

14. data processing equipment as claimed in claim 1, wherein, described treatment circuit receives and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, formation is comprised the data the image data in the input store that is written to described transcriber in the image data of described reproduction data of just reproduced image data output to described transcriber, and the output of the described data in being written to described input store is inadequately during the reproduction of next image data of just reproduced image data, all a plurality of image datas that form with the just reproduced corresponding described reproduction data of described image data are outputed to described transcriber, make and reproduce the described image data that writes in the described input store under the situation of the reproduction speed of described transcriber in not specifying described transcriber, and be output under the situation of described transcriber at the corresponding image data of next image data, make described transcriber reproduce described reproduction data from the corresponding described image data of next image data with the described image data that is just being reproduced by described transcriber with described reproduction speed with the described image data that is just being reproduced by described transcriber.

15. a data processing method is used for outputing to transcriber with reproduction with forming a plurality of image datas that reproduce data,

Described data processing method comprises

First step, judge described transcriber to the reproduction speed of described image data whether be lower than with described image data be transferred to described transcriber transmission rate and

Second step when described first step is judged described reproduction speed and is lower than described transmission rate as judged result, outputs to described transcriber with all described image datas that form described reproduction data.

16. data processing method as claimed in claim 15 is used to make data processing equipment to receive and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, described method also comprises:

Third step outputs to described transcriber with all a plurality of image datas that form with the just reproduced corresponding described reproduction data of image data,

The 4th step when carrying out described third step, is not being specified under the situation of reproducing speed, reproduce in the input store that writes on described transcriber all described image datas and

The 5th step, finish the reproduction of described the 4th step, and be output under the situation of described transcriber at the corresponding image data of next image data, reproduce described reproduction data from the corresponding described image data of next image data with the described image data that is just being reproduced by described transcriber with described reproduction speed with the described image data that is just being reproduced by described transcriber.

17. data processing method as claimed in claim 16 is used to make data processing equipment to receive and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, described method also comprises

The 6th step outputs to described transcriber with all a plurality of image datas that form with the corresponding described reproduction data of next image data of just reproduced image data,

The 7th step, when carrying out described the 6th step, make reproduce under the situation of the reproduction speed of described transcriber in not specifying described transcriber all described image datas of writing in the described input store and

The 8th step, be output under the situation of described transcriber at the corresponding image data of next image data, make described transcriber reproduce described reproduction data from the corresponding described image data of next image data with just reproduced described image data with described reproduction speed with the described image data that is just being reproduced by described transcriber.

18. data processing method as claimed in claim 15 is used to make data processing equipment to receive and is used for changing to the order that is lower than described transmission rate with reproducing speed from the described transmission rate of fast mistake, described method also comprises

The 9th step will comprise that the image data the image data in the input store that is written to described transcriber in the image data of the described reproduction data of formation of just reproduced image data outputs to described transcriber,

The tenth step, the output of the described image data the image data in being written to described input store is inadequately during the reproduction of next image data of just reproduced image data, all a plurality of image datas that form with the just reproduced corresponding described reproduction data of described image data are outputed to described transcriber

The 11 step, when carrying out described the tenth step, make reproduce under the situation of the reproduction speed of described transcriber in not specifying described transcriber all described image datas of writing in the described input store and

The 12 step, be output under the situation of described transcriber at the corresponding image data of next image data, make described transcriber reproduce described reproduction data from the corresponding described image data of next image data with just reproduced described image data with described reproduction speed with the described image data that is just being reproduced by described transcriber.

19. a data handling system is used to make data processing equipment will form a plurality of image datas that reproduce data and outputs to transcriber to reproduce, wherein

Described data processing equipment judges whether described transcriber is lower than transmission rate when described image data outputed to described transcriber to the reproduction speed of described image data, and in described judged result is that all image datas that described reproduction speed will form described reproduction data when being lower than described transmission rate output to described transcriber, and

Described transcriber comprises:

Input store and

Be used for and will write described input store, the described image data that reads from described input store is decoded from the described image data of described data processing equipment input, and with described reproduction speed to its device that reproduces.

20. data handling system as claimed in claim 19, wherein

The order of the reproduction speed of described transcriber is specified in described data processing equipment output, and

The described image data that described transcriber decoding is read from described input store, and according to the described reproduction speed of the described order of exporting from described data processing equipment it is reproduced.

21. a data processing equipment is used for outputing to transcriber to reproduce with forming a plurality of image datas that reproduce data, comprising:

Storage device is used to store described reproduction data,

Treatment circuit, be used to judge whether described transcriber is lower than transmission rate in the time will outputing to described transcriber from the described image data that described storage device reads to the reproduction speed of described image data, and in described judged result is that described reproduction speed is when being lower than described transmission rate, with all image datas that form described reproduction data output to described transcriber and

Transcriber is used for the described image data that reads from described input store being decoded, and with described reproduction speed it being reproduced writing input store from the image data of described treatment circuit output.

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