CN1163529A - Communication terminal device and communication method - Google Patents
Communication terminal device and communication method Download PDFInfo
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- CN1163529A CN1163529A CN97100454A CN97100454A CN1163529A CN 1163529 A CN1163529 A CN 1163529A CN 97100454 A CN97100454 A CN 97100454A CN 97100454 A CN97100454 A CN 97100454A CN 1163529 A CN1163529 A CN 1163529A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/333—Mode signalling or mode changing; Handshaking therefor
- H04N1/33307—Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only
- H04N1/33323—Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only transmission mode only, e.g. speed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/0035—User-machine interface; Control console
- H04N1/00352—Input means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0093—Facsimile machine
Abstract
The invention discloses a communication terminal device and the communication method. The communication speed can be changed appropriately according to the transmitting data processing condition and the receiving data processing condition. When the V.34 standard is suggested by ITU-T for communication, the received image data is stored into a memorizer by a receiving end. Meanwhile, the data in the memorizer is printed after being decoded. When the speed needed from the receiving of the image data to the printing processing is slower than the communication speed, as the data receiving continues and the vacant capacity of the memorizer is further reduced, the probability of the memorizer overflow is increased. Then the communication speed requested by the receiving end to the transmitting end for changing is slowed, so as to request that the communication speed between the transmitting ends is reset to an appropriate speed.
Description
The present invention relates to communication terminal and communication meanss such as a kind of for example facsimile machine.Relate in particular to a kind ofly, can finish the communication terminal and the communication means of high speed transmission data for example according to ITU-T (International Telecommunications Union-electrical communication standardization department) suggestion V34 etc.
In recent years, along with the quickening of social informatization, a large amount of files and data are just seemed very necessary with high-speed transfer.In order to satisfy this demand, proposed a kind ofly can advise the facsimile machine that the V34 standard communicates by ITU-T.When communicating according to this suggestion V34 standard, its data pass speed and reach as high as 33600b/s, are very effective communication shortcuts with high efficiency transmission at short notice with lot of data therefore.
Yet, when above-mentioned V34 communication function is provided with, can produce following problem on facsimile machine.That is to say, when carrying out facsimile between originating device and the receiving end device, when the decoder of receiving end device or printer processes ability were low, the print processing speed that then causes the receiving end device to receive the decoding processing speed of data or decoded data did not catch up with the transmission rate of data.In the case, can not print processing exactly to receiving data, print data is incomplete sometimes.Not only the receiving end device exists this problem but also originating device exists too.As read portion or the coder processes ability is low, and then causing the encoding process speed of reading processing speed or sense data of original copy not catch up with data ground transmission rate, thereby can not carry out transfer of data exactly, the transmission data are incomplete yet.
On the other hand, configuration sometimes deposits the video memory that receives data in the facsimile machine, and the limit will receive data and deposit in the video memory, and the data that the limit will be read in its video memory are carried out decoding processing and print processing.But, even this processing, still do not catch up with the transmission rate of data as decoding processing speed or print processing, reception data speed in the video memory will appear being stored in faster than the printing reading speed in the video memory, thereby, before Data Receiving finishes, might video memory overflow and can not accurately not print entirely as above-mentioned reception data.
The present invention proposes for addressing the above problem, its purpose is: the logical product terminal installation and the communication means that transmit and receive data exactly that a kind of higher rate is provided, it can change into suitable traffic rate according to the treatment situation of transmission data or the treatment situation of reception data
For achieving the above object, the present invention takes following technical scheme:
A kind of communication terminal, it has in data communication process can change the traffic rate function, it is characterized in that being provided with:
To receiving the reception data processing equipment that data are handled;
According to the treatment situation of described processor, change the request unit of traffic rate to the request of making a start;
The speed setter that traffic rate between will making a start according to this request resets.
Described communication terminal is characterized in that:
Above-mentioned reception data processing equipment comprises:
Deposit the reception memory of data in;
According to the data in the memory, be printed on the register on the record-paper when receiving data;
Above-mentioned request unit is according to the memory idle capacity, changes traffic rate to the request of making a start.
Described communication terminal is characterized in that:
Be provided with the tables of data of setting between memory idle capacity and communication speed, above-mentioned request unit is according to its tables of data, can judge to making a start whether ask to change traffic rate, above-mentioned speed setter is to reset traffic rate between making a start according to tables of data.
A kind of communication terminal, it has in the digital communication process can change the traffic rate function, it is characterized in that being provided with:
To transmitting the transmission data processing equipment that data are handled;
According to described processing unit treatment situation, change the request unit of traffic rate to the receiving end request;
Reset the speed setter of traffic rate between the receiving end according to described request.
A kind of communication means, it can change traffic rate in data communication process, it is characterized in that:
According to transmission data processing situation or reception data processing situation, change traffic rate to the communication counterpart request, so that reset traffic rate between the other side.
The present invention is exactly for achieving the above object.It is a kind of communication terminal that can change traffic rate in data communication process.This communication terminal is provided with: to receiving the reception data processing equipment that data are handled; According to the treatment situation of its processing unit, change the request unit of traffic rate to the request of making a start; Reset the speed setter of originating device traffic rate before according to its request.
In the described invention, above-mentioned reception data processing equipment comprises: deposit the reception memory of data in; According to the data of memory, be printed on the register on the record-paper when receiving data; Above-mentioned request unit is according to the memory idle capacity, changes communication speed to the request of making a start.
Among the present invention, it has the relevant data table of setting between memory idle capacity and traffic rate, above-mentioned request unit is to judge the request change traffic rate of making a start according to its tables of data, and above-mentioned setting apparatus is to reset traffic rate between making a start according to tables of data.
The present invention is a kind of in data communication, has the terminal installation that can change communication speed.It is provided with: to transmitting the transmission data processing equipment that data are handled; According to the treatment situation of its processing unit, change the request unit of traffic rate to the request of making a start; Reset the speed setter of traffic rate between the receiving end according to its request.
The present invention is a kind of in data communication, has the communication mode that can change communication speed.It is according to the treatment situation of the treatment situation of transmission data or reception data, changes traffic rate to the communication counterpart request, and resets the traffic rate between the communication counterpart.
The present invention, it is as follows to work respectively:
When receiving data, the treatment situation according to the reception data of different reception data processing equipments changes traffic rate to the request of making a start, and resets communication speed between making a start according to its request.For example: if required speed does not catch up with traffic rate from Data Receiving to print processing, then change traffic rate to the request of making a start, and according to its request reset make a start between traffic rate be suitable speed.For this reason, under higher rate, can accurately receive data.
The present invention according to the memory idle capacity, changes traffic rate to the request of making a start.For example, when from receiving data when the required speed of print processing does not catch up with traffic rate,, just certainly will further reduce the memory idle capacity along with continuing to receive data.In the case, can judge and might memory overflow and make a big impact, thereby changing traffic rate to the request of making a start should slow down receiving data processing.
According to the present invention, can judge whether to change traffic rate or reset traffic rate, all be easy to realize by pre-set tables of data.
According to the present invention, when carrying out transfer of data, the treatment situation according to difference transmission data processing equipment transmission data changes traffic rate to the receiving end request, and asks to reset traffic rate between the receiving end according to it.For example,, then change to the receiving end request when reading pictorial data when handling required speed and not catching up with traffic rate to transmitting it from the image of reading on the original copy, traffic rate, and, the traffic rate between the receiving end is reset to suitable speed according to its request.Thereby, can realize the transmission data exactly under the higher rate.
According to the present invention, when carrying out transfer of data or receiving,, change traffic rate to the communication counterpart request, and the traffic rate between the communication counterpart is reset to suitable speed according to the treatment situation of transmission data or the treatment situation of reception data.
Good effect of the present invention:
As detailed above, it is as follows that the present invention has remarkable result:
According to the present invention,, traffic rate is changed into suitable speed, thereby can realize the reception data exactly under the higher rate according to receiving the data processing situation.
According to described invention, can avoid before Data Receiving finishes, owing to memory overflows the infull problem of data that receives.
According to the present invention, the request that can judge whether changes traffic rate or resets traffic rate, all is easy to realize by predefined tables of data.
According to the present invention,, traffic rate is changed into suitable speed, thereby can realize the transmission data exactly under the higher rate according to transmission data processing situation.
Below with reference to the accompanying drawings, describe embodiments of the invention in detail:
Facsimile machine circuit structure diagram in Fig. 1 the present invention the 1st example
Fig. 2 represents tables of data key diagram of the present invention
The action flow chart during transmission of Fig. 3 facsimile machine
Action flow chart when Fig. 4 facsimile machine receives
Fig. 5 (a) is that of the present invention making a start changes traffic rate motion flow key diagram to the receiving end request
(b) be receiving end of the present invention changes motion flow key diagram from traffic rate to the request of making a start
Fig. 6 is action flow chart when facsimile machine transmits in the 2nd example of the present invention
Fig. 7 is action flow chart when facsimile machine receives in the present invention's the 2nd example
Fig. 8 (a) is that of the present invention making a start changes traffic rate procedure declaration figure to the receiving end request
(b) be that receiving end of the present invention changes traffic rate procedure declaration figure to the request of making a start
Fig. 9 is that the 2nd example of the present invention changes example, (a) is to make a start to change traffic rate procedure declaration figure to the receiving end request; (b) be that receiving end changes traffic rate procedure declaration figure to the request of making a start.
Figure 10 is action flow chart when facsimile machine receives in the 3rd example of the present invention
Figure 11 be the of the present invention the 3rd real when form changes example and fax and will receive action flow chart.
According to Fig. 1～Fig. 5, just the present invention's the 1st specific example on facsimile machine is done an explanation below.
Fig. 1 is the facsimile machine circuit end that this product is executed form.CPU (central processing unit) 1 with control with ROM such as program (read-only memory) 2 and link to each other depositing the device everything in temporary RAM (random access memory) 3 such as needs control datas.NCU (network controller) the 4th when continuing between the telephone line controlled, also has the dial impulse that sends the other side's telephone number correspondence and to coming function that speech phase detects etc.5 of modulator-demodulators have for realizing the function of aftermentioned V34 communication control procedure.In addition, in this example, request unit and speed setter are made up of CPU1, ROM2, RAM3 and MODEM (modulator-demodulator).
The portion of reading 6 as reader is made up of CCD (charge-coupled device) image sensor etc.It is that the original copy limit is moved to sub scanning direction, and read with 1 row of the image on the original copy, 1 row on the limit.Video memory 7 as memory is the pictorial data that will receive or the pictorial data of being read by the portion of reading 6, can encode and with coding, state storage by MR numbering scheme [change and read (Modified read) numbering scheme] or MMR numbering scheme [modification change read (Modified MR) numbering scheme] etc.As the CODEC (codec) the 8th of coder/decoder, when the pictorial data of being read by the portion of reading 6 is encoded, send recording portion 9 to after the coding image data in the video memory 7 are decoded.Recording portion 9 as register is made up of electrophotographic printer.It is through coder/decoder 8 decoded pictorial data, that is to say, the pictorial data according to receiving pictorial data or being read by the portion of reading 6 is printed on the record-paper.In this example, the transmission data processor is made up of portion of reading 6 and coder/decoder 8.Form by video memory 7, coder/decoder 8 and recording portion 9 and receive data processing equipment.Key operation portion 10 has in order to input numerical key such as telephone number and in order to start the various operation keyss such as start key of facsimile action.Showing the P11 of portion is in order to show the various information such as telephone number of input.
The following describes V34 communication control procedure summary.In this V34 communication control procedure, the message transmission rate setting range is 33600b/s.In addition, in this V34 communication control procedure, the complete dual communication of two-way simultaneous transmission data also can realize, even midway in communication, can be according to the communication line state, can arbitrary change communication speed in above-mentioned traffic rate scope, and to the change of this traffic rate, both can be to make a start to the receiving end request, also can be that receiving end is to the request of making a start.Therefore, the V34 communication control procedure is not only avoided data transmission error, and the transfer of data of higher rate can be provided.
The facsimile machine of this example is exactly to have utilized the traffic rate of one of V34 communication control procedure feature can change function, and according to transmission data processing situation or receive the data processing situation and can change traffic rate, in order to avoid do not influence the transmission data processing and receive data processing.In addition, so-called transmission data processing then means from reading image on the original copy to transmitting the processing that it reads pictorial data.Moreover, the so-called data that receive, then mean from receiving pictorial data, in particular, then mean to receive the encoded device of pictorial data in the video memory 7 and carry out decoding processing and decoded data thereof and be printed on processing on the record-paper through recording portion 9 again depositing in to print processing.
Pre-deposit tables of data as shown in Figure 2 among the above-mentioned ROM.This tables of data is corresponding with video memory 7 each idle capacity respectively, and when its idle capacity, approved traffic rate is just set.As shown in the drawing, in this tables of data, when video memory 7 idle capacities less than the 128K byte time, its corresponding traffic rate is set at 4800b/s.When video memory bear capacity greater than the 128K byte to less than the 256K byte time, its corresponding traffic rate height is decided to be 14400b/s, moreover, when video memory 7 not busy capacity greater than the 256K byte to less than the 512K byte time, its corresponding traffic rate is set at 28800b/s, when video memory 7 idle capacities greater than the 512K byte time, its corresponding traffic rate is set at 33600b/s.
Below just as the effect of above-mentioned structure facsimile machine explain.
At first, this example facsimile machine is become the situation of making a start, according to flow chart shown in Figure 3, the just communication operation explanation of under above-mentioned CPU1 control, carrying out.
As shown in Figure 3, in case according to the operations such as numerical key of key operation portion 10, when the receiving end device is breathed out (step S1), can be by the replying of receiving end device, make between the receiving end device circuit link to each other (step S2).Subsequently, carry out the communication control procedure (step S3) of advising the V8 standard based on ITU-T through modulator-demodulator 5.So-called V8 communication control procedure be exactly make a start with receiving end between communicate with each other how to coordinate with cooperate finish can be corresponding modulation system, and then automatic between the two a kind of rules that determine best modulation methods worker.By carrying out this V8 communication control procedure, the receiving end device can judge whether to possess V34 communication function (step S4).If do not possess the V34 communication function, then carry out a kind of V34 communication control procedure consistent with each other desirable modulation methods worker's in addition communication control procedure (step S5).
On the other hand, if the receiving end device has the V34 communication function, then communicate (step S6) by the V34 communication control procedure.In this V34 communication control procedure, earlier the line conditions between the receiving end is surveyed (test), and, modulator-demodulator 5 is carried out various parameter settings according to its result of detection, simultaneously modulator-demodulator is adjusted (step S7).At this moment, also to set the traffic rate between the receiving end device.Subsequently, the transmission data are handled (step S8).That is to say that step S8 is read 1 page of image of original copy and its data of reading are encoded through coder/decoder 8 by the portion of reading 6, simultaneously its coded data is passed through modulator-demodulator 5 again, is transmitted after modulating by V34 standard modulation system.In addition, the data communication rates of this moment, good as line status, then be set at highest communication speed, as 33600b/s.
After data processing begins to transmission, wait for that 1 page of original copy reads end (step S9).When 1 page of original copy was read end, the testing result according to by the original detection sensor of not representing among the figure can judge whether that there be (step S10) in next original copy.As do not have original copy, then transmission process stops.
When reading former height and exist, then can judge whether and to change traffic rate (step S11) to the request of receiving end device if any the next one.At this moment, the encoding process speed (in other words, transmission processing speed of data) of reading processing speed or coder/decoder 8 when the original copy of the portion of reading 6 then can be judged and need change traffic rate to the request of receiving end device when not catching up with the traffic rate of pictorial data.As for the time delay of transmission processing speed of data, be when transmitting data processing, because as: other handle to walk abreast print processing etc. and to carry out causing the transmission data-handling capacity of relevant CPU1 to decrease, and have caused above-mentioned time delay.
Through the judged result YES (being) of above-mentioned steps S11, then change traffic rate (step S12) to the request of receiving end device.Then, by its request, the traffic rate between the receiving end is reset to the suitable speed (step S13) that does not influence the transmission data processing.In addition, through above-mentioned steps S11 judged result NO (denying), can judge whether receiving end asks to change traffic rate (step S14).If the receiving end device has request, then the receiving end device can judge that receiving data processing speed does not catch up with traffic rate, and perhaps traffic rate does not catch up with the reception data processing speed, just moves to above-mentioned steps S13.Then, in step S13, the traffic rate between the receiving end device is reset to the suitable speed that receives data processing that do not influence.
After step S13 processing, just be back to above-mentioned steps S8, just read next original copy, and it is read pictorial data, can under the traffic rate that resets, transmit.On the other hand, in above-mentioned steps S14, if the receiving end device do not have request, then traffic rate is constant formerly is back to step S8 and with next original copy sense data, can transmits under the existing traffic rate of setting motionless.
Below this example facsimile machine is become the receiving end situation, according to flow chart shown in Figure 4, just the feeding of carrying out under CPU1 control explains.
As shown in Figure 4, when based on the exhalation of originating device call signal, when detecting (step S21), can make circuit between the originating device link to each other (step S22) through NCU4 by NCU4 from switch.Subsequently, through modulator-demodulator 5, carry out communication control procedure (step S23) based on ITU-T suggestion V8 standard.By carrying out this V8 communication control procedure, can judge whether to have V34 communication function (step S24).As not possessing the V34 communication function, then carry out the communication control procedure (step S25) of a kind of V34 communication control procedure consistent with each other desirable modulation system in addition.
Have the V34 communication function as originating device, then communicate (step S26) by its communication control procedure.The same with above-mentioned Fig. 3 step S7, modulator-demodulator is carried out various parameter settings, simultaneously modulator-demodulator is adjusted (step S27).Through the time, also to set traffic rate between the originating device.Then, handle (step S28, step S29) to receiving data.That is to say, among the step S28, under original traffic rate of setting, to receive from 1 page of pictorial data of original copy that originating device is sent, and, pass through modulator-demodulator 5 with its reception pictorial data, be stored in the video memory 7 after decoding by V34 standard modulation system.Subsequently, in step S29,, after process coder/decoder 8 is decoded,, be printed on the record-paper by recording portion 9 according to its decoded data with the reception pictorial data in the video memory.
Handling beginning to receiving data, will wait for that 1 page of pictorial data of original copy receives end (step S30).When 1 page of original copy receives end, can judge whether that nextpage receives pictorial data and has (step 31).As do not have original copy, when then all the reception pictorial data in the video memory 7 having been printed, then handle come to an end (step S32).
Receive pictorial data if any nextpage and exist, can judge whether and to change traffic rate, (step S33) to the originating device request.And the realization of this judgement is to finish by the reference of Fig. 2 tables of data.In more detail, after earlier the instantaneous idle capacity in the video memory 7 being confirmed,, can judge the traffic rate of present setting with reference to Fig. 2 tables of data, whether corresponding with the idle capacity in the video memory 7.
For example, the traffic rate of setting now is 14400b/s.At this moment, video memory 7 moment idle capacity greater than the 128K byte to less than the 256K byte time, it is suitable then being considered to present traffic rate, therefore can judge does not need to change traffic rate to the originating device request.It is inappropriate then to be considered to existing traffic rate as the instantaneous idle capacity of video memory 7 less than the 128K byte or greater than the 256K byte time, can judge to the request of making a start to change traffic rate.
When the decoding processing speed of coder/decoder 8 and the print processing speed of recording portion 9 are delayed time sometimes, in other words, when the reception data processing speed did not catch up with the pictorial data traffic rate, the reception pictorial data speed that then deposits in the video memory 7 was read print speed faster than the pictorial data in the video memory 7.In the case, along with continue receiving pictorial data, just certainly will further reduce the idle capacity in the video memory 7, and receiving along with continuing again, idle capacity in the video memory 7 will obviously reduce and video memory 7 overflows, thereby influence receives data processing.
When the pictorial data traffic rate does not catch up with when receiving data processing speed, then the pictorial data in the video memory 7 reads print speed faster than the reception pictorial data speed that deposits video memory in 7.In the case, continue to receive pictorial data, just certainly will further reduce the data volume in the video memory 7, and the idle capacity in the video memory 7 increases.Along with continuing to receive again, the data volume in the video memory 7 will obviously reduce, and like this, its data volume will be reached greater than before the ormal weight, certainly exist reception data printing or the like and treat the time.
As mentioned above, do not catch up with the pictorial data traffic rate as receiving data processing speed, then the not busy capacity of video memory 7 reduces gradually.In addition, when traffic rate did not catch up with the reception data processing speed, the idle capacity of video memory 7 increased gradually.Do not discuss any situation,,, make a big impact receiving data processing along with continuing to receive as long as under existing traffic rate.Tables of data shown in Fig. 2 is to correspond respectively to idle capacity given in the video memory 7.This table is considered to suitable traffic rate setting table.Therefore, in above-mentioned steps S33,, can judge when the terrain traffic rate is set not according to the corresponding traffic rate of the idle capacity of video memory 7 with reference to Fig. 2 tables of data, then make a big impact, so must change traffic rate to the request of making a start to receiving data processing.
As mentioned above, when step S33 judged result YES, then change traffic rate (step S34) to the originating device request.Then, according to its request, the traffic rate between the originating device is reset to receiving the suitable speed that data processing does not impact.That is to say, be reset to the speed (step S35) that the idle capacity of video memory 7 does not reduce or do not increase.In addition, during the judged result NO of above-mentioned steps S33, can judge whether originating device has request to change traffic rate (step S36).If have request, originating device can judge that the transmission data processing speed does not catch up with traffic rate, perhaps traffic rate does not catch up with the transmission data processing speed and moves to above-mentioned steps S35 automatically.In step S35, the traffic rate between the originating device is reset to the suitable speed that the transmission data processing is not impacted.
After this, return step S28 and also can under the traffic rate that resets, receive next page pictorial data.On the other hand, in above-mentioned steps S36, if originating device does not have request, then traffic rate does not change and the intact step S28 that returns, and can receive next page pictorial data under the existing traffic rate of setting.
Originating device modulator-demodulator 5 is shown in Fig. 5 (a) to the course of action that 5 requests of receiving end device modem change traffic rate, and receiving end device modem 5 is shown in Fig. 5 (b) to the course of action of originating device modulator-demodulator 5 requests change traffic rate.In the V34 communication control procedure, it is to finish by half-duplex operation that originating device is communicated by letter with the pictorial data between the receiving end device.Course of action shown in Fig. 5 is to finish by full-duplex communication.
Fig. 5 (a) course of action is described earlier.Originating device modulator-demodulator 5 (hereinafter referred to as making a start) is, when the original copy of the portion of reading 6 is read processing speed, perhaps the encoding process speed of codec 8 (that is to say, the transmission data processing speed) when not catching up with traffic rate, when perhaps traffic rate does not catch up with the transmission data processing speed, then 1 page pictorial data distributes, and after the time, sends pph signal and ALT signal to receiving end device modem 5 (hereinafter referred to as receiving end) through 70 ± 5ms (millisecond) tone-off.This pph signal is exactly to make a start to change the signal of traffic rate to the receiving end request, is making a start, and the transmission course of action of this pph signal just is equivalent to above-mentioned Fig. 3 step S12 to be handled.In addition, in receiving end, whether judgement detects for the pph signal that transmits from making a start just is equivalent to above-mentioned Fig. 4 step S36 processing.
Receiving end, in case intact to the pph input that transmits from making a start, send pph signal and ALT signal to making a start, make a start in case to after the pph input that transmits from receiving end, send a MPh signal to receiving end at the appointed time.In addition, receiving end is sent an ALT signal in preset time after, send a MPh signal to making a start.
From make a start and the MPh signal sent respectively of receiving end, the 20th～23 bit representation self may maximum data rate from the outset, is to represent with 4 bit data.This 4 bit data is that [N] during with maximum data rate N * 2400b/s (N is 1 to 14 integer) uses binary representation.Make a start and after receiving end has at least a MPh signal that detects and now sending to distribute to the MPh signal that transmits from the other side respectively, send a positive signal to the other side.Then, make a start and maximum data rate that MPh signal that receiving end sends according to self respectively is represented and come, reset traffic rate between the two from the represented maximum data rate of MPh signal that the other side receives.But this traffic rate should be chosen slow side's speed in the represented maximum data rate of both MPh signal.
The course of action that resets of this traffic rate just is equivalent to Fig. 3 step S13 and Fig. 4 step S35 processing.
Make a start and after receiving end sends a positive signal respectively, when the other side sends the control channel data, receive the positive signal and the control channel data that transmit from the other side.In these control channel data, for example can comprise: to the DIS signal of G3 facsimile machine fax control procedure signal or be equivalent to the represented data of DCS signal.By processing, make a start and function that receiving end is just known the other side and had to these control channel data.
Make a start send control channel data after, under the traffic rate that resets in front, send next page pictorial data, and after receiving end sends control channel data, can under the traffic rate that preceding resets, receive the pictorial data that transmits from making a start.
The following describes Fig. 5 (b) course of action.Making a start, when the transmission data processing speed does not produce time delay to traffic rate, and time-delay (not that is to say when traffic rate did not also produce the transmission data processing speed, when not needing request to change transmission rate) making a start distributes 1 page pictorial data, through 70 ± 5ms, tone-off is after the time, send the Sh signal to receiving end, paraphase Sh signal and ALT signal, in receiving end, the people is made a start the Sh signal that transmits when detecting, will be with reference to Fig. 2 tables of data, when its result sets not according to the corresponding traffic rate of the idle capacity of video memory 7 as if existing traffic rate, send pph signal and ALT signal to making a start.That is to say that this pph signal is exactly receiving end changes a signal from traffic rate to the request of making a start.In receiving end, the transmission course of action of this pph signal just is equivalent to above-mentioned Fig. 4 step S34 to be handled.In addition, making a start, can judge whether the pph signal that transmits from receiving end detected just to be equivalent to above-mentioned Fig. 3 step S14 and to handle.
Receiving end, when the Sh signal that transmits from making a start was detected, corresponding suitable traffic rate was set if existing traffic rate is then pressed the idle capacity of video memory 7, then sends a Sh signal with making a start.After this, make a start with receiving end between carry out and the different course of action of Fig. 5 (b), and do not changing under the traffic rate, carry out the pictorial data communication of the next page.
Make a start,, then send pph signal and ALT signal to receiving end in case the pph signal that transmits from receiving end has been detected.In a single day receiving end has detected the MPh signal that transmits from making a start, introversion is made a start and sent a MPh signal at the appointed time.In addition, make a start send the ALT signal at the appointed time after, send a MPh signal to making a start.
Make a start and after receiving end has at least a MPh signal that detects and now sending to distribute to the MPh signal that transmits from the other side respectively, send a positive signal to the other side.It is identical with above-mentioned Fig. 5 (a) course of action with the course of action of receiving end to make a start, respectively according to the traffic rate that resets from the represented maximum data rate of MPh signal that self sends between the two.The course of action that resets of this traffic rate just is equivalent to Fig. 3 step S13 and Fig. 4 step S35 processing.This is identical with Fig. 5 (a) course of action.Receiving end is according to Fig. 2 tables of data, and the existing idle capacity of video memory corresponding can the letter rate being notified to as maximum data rate made a start.
Make a start and receiving end between, after the control channel data are handled, under the traffic rate that can reset in front, carry out the bright data communication of figure of the next page, identical with Fig. 5 (a) situation.
This example facsimile machine, owing to carry out above-mentioned course of action, therefore, it is as follows that it has remarkable result:
(1) when the transmission diagram image data, when reading pictorial data and handle required speed and (that is to say to transmitting it from the image of reading on the original copy, the transmission data processing) when not catching up with traffic rate, when perhaps traffic rate does not catch up with the transmission data processing speed, then changes traffic rate to the receiving end request.Like this, can be according to the treatment situation of transmission data, change traffic rate to the receiving end request, so that the traffic rate between the receiving end is reset, thereby can avoid reading pictorial data and the infull problem of transmission diagram image data, and can be implemented in the image data of transmission diagram exactly under the higher rate owing to not transmitting exactly.
(2) when receiving pictorial data, according to Fig. 2 tables of data, can judge if existing traffic rate not according to the corresponding suitable traffic rate of the idle capacity of video memory 7, then makes a big impact to receiving data processing, so change traffic rate to the request of making a start.In other words, when when not catching up with traffic rate, perhaps traffic rate does not catch up with when receiving data processing, then changes traffic rate to the request of making a start to having printed required processing speed (that is to say and receive data processing) from receiving pictorial data.Then, according to its request, traffic rate between making a start is reset to suitable speed.Change traffic rate according to the treatment situation that receives data from the request of making a start, so that the traffic rate between making a start is reset, thereby, before can avoiding pictorial data to receive, receive the infull problem of pictorial data owing to video memory overflows, and the accurate reception that can be implemented under the two-forty is printed.
(3) receiving end can just be easy to judge when whether the request of making a start changes traffic rate by predefined tables of data, also determines very like a cork to be reset to suitable traffic rate to the request of making a start.
(the 2nd example)
Explain with regard to the present invention's the 2nd example according to Fig. 6～Fig. 9 below.
In above-mentioned example, the change of traffic rate is just carried out between the communication data page.To this, in the 2nd example, the change of traffic rate can all can be carried out in one time period of meeting in 1 page pictorial data communication process.
Fig. 6 becomes the 2nd example facsimile machine when making a start, the communication operation flow chart that carries out under by CPU1 control.That is to say, and then, will judge promptly whether reading of original copy 1 page finishes (step S41) after Fig. 3 step S1 in above-mentioned the 1st example～S8 handles.Read end when 1 page, then can judge whether and to change traffic rate (step S42) to the receiving end request.Send out the transmission data processing speed and do not catch up with traffic rate, when perhaps traffic rate does not catch up with the transmission data processing speed, then can judge and to change traffic rate to the receiving end request.After changing traffic rate (step S43),, the traffic rate between the receiving end is reset to the suitable speed that the transmission data processing is not impacted according to its request to the receiving end request.
When above-mentioned steps S42 judged result NO, the request that then can judge whether changes traffic rate (step S45).If receiving end has request, then move to above-mentioned steps S44, the traffic rate between the receiving end is reset to receiving the suitable speed that data processing does not impact.
In case step S44 processing finishes, and just returns above-mentioned steps S41, and read the pictorial data transmission, can under the communication speed that resets, restart.On the other hand, in above-mentioned steps S45, if receiving end do not have request, then traffic rate does not change and formerly is back to step S41 to motionless, and reads the pictorial data transmission and can proceed under the existing traffic rate of setting.
Above-mentioned steps S42～S45 action repeats to read end for 1 page to original copy.In step S41,, can judge whether that the next one reads original copy and have (step 46) in case original copy 1 page runs through.If read original copy, just be back to above-mentioned steps S8, carry out reading of next original copy.In addition, do not read original copy if having, then transmission process comes to an end.
Fig. 7 is when the facsimile machine of the 2nd example becomes receiving end, the moving process flow diagram of the communication of carrying out under being controlled by CPU1.That is to say, and then, can judge whether 1 page of pictorial data of original copy finishes (step S51) after above-mentioned the 1st example Fig. 4 step S21～S29 handles.If 1 page of reception of original copy does not finish, then can judge to originating device whether ask to change traffic rate (step S52).This judgement is identical with the situation of Fig. 4 step S33, is to carry out according to Fig. 2 tables of data.Once judgement, if desired when the originating device request changes traffic rate, then after the originating device request changes traffic rate (step S53),, the traffic rate between the originating device is reset to receiving the suitable speed that data processing does not impact according to its request.
When above-mentioned steps S52 judged result NO, can judge whether originating device asks to change traffic rate (step S55).If originating device has request, just move to above-mentioned steps S54, so that make the traffic rate between the originating device be reset to the suitable speed that the transmission data processing is not impacted.
In case step S54 processing finishes, and just returns above-mentioned steps S51, pictorial data receives and can restart under the traffic rate that resets.On the other hand, among the above-mentioned steps S55, if originating device do not have request, then traffic rate does not change formerly in the motionless step S55 that is back to, and pictorial data receives, and can proceed under the existing traffic rate of setting.
Above-mentioned steps S52～S55 action repeats row original copy 1 page and receives end.In step S55, in case receiving, original copy 1 and face finish, can judge whether that there be (step S56) in the reception pictorial data of the next page.If the next one is arranged, just return above-mentioned steps S28, receive the pictorial data of the next page.In addition, right nothing is next, when all the reception image printings in the video memory 7 are finished, then handles come to an end (step S57).
Fig. 8 (a) makes a start to change the course of action of traffic rate to the receiving end request,
Fig. 8 (b) is receiving end changes a course of action from traffic rate to the request of making a start.
Fig. 8 (a) course of action is described earlier.The transmission data processing speed does not catch up with traffic rate when making a start, when perhaps traffic rate does not catch up with the transmission data processing speed, then interrupt in the page pictorial data transmission course, after 70 ± 5ms tone-off time, send a B signal as tone signal to receiving end.This B signal becomes the signal of making a start to receiving end request change traffic rate.The transmission action of this B signal just is equivalent to above-mentioned Fig. 6 step S43 and handles.In addition, receiving end can be judged whether the B signal that transmits from making a start detected and just is equivalent to above-mentioned Fig. 7 step S55 and handles.
Receiving end has detected at the appointed time to the B signal that transmits from making a start, and after 70 ± 5ms tone-off time, making a start sends a-signal and paraphase a-signal as tone signal.Make a start a-signal and the paraphase a-signal that transmits from receiving end detected, at the appointed time after, send a paraphase B signal that from the paraphase a-signal, detects to receiving end.Moreover, make a start to L1 and the L2 signal of receiving end transmission as detectable signal.
Receiving end has detected the paraphase B signal that transmits from making a start, and just receives L1 signal and the L2 signal that transmits from making a start.After this, receiving end sends a signal A to making a start.Make a start the a-signal that transmits from receiving end has been detected, a B signal takes place to receiving end.In addition the a-signal that transmits making a start of receiving end detect fixed, at the appointed time after, making a start sends an INFOh signal.
Make a start and receive the INFOh signal that transmits from receiving end, after 70 ± 5ms tone-off time, send S signal, paraphase S signal and pp signal to receiving end.Moreover making a start sends a TRN signal to receiving end.Receiving end has detected S signal and the paraphase S signal that transmits from making a start, and receives the pp signal and the TRN signal that transmit from making a start.These PP signals and TRN signal are to adjust by modulator-demodulator.
Make a start and receiving end between reset traffic rate, its course of action is identical with above-mentioned Fig. 5 (a), the course of action that resets of the traffic rate that Fig. 5 (a) illustrates just is equivalent to Fig. 6 step S44 and Fig. 7 step S54 and handles.Then, under the traffic rate that resets in front, make a start with receiving end between pictorial data communicate by letter and restart.
The following describes the course of action that Fig. 8 (b) illustrates.Receiving end can be judged and need after 70 ± 5ms tone-off time, send the a-signal as tone signal to making a start when the request of making a start changes common speed according to Fig. 2 tables of data.This a-signal becomes receiving end changes signal from traffic rate to the request of making a start.The transmission action of this a-signal of receiving end just is equivalent to above-mentioned Fig. 7 step S54 and handles.In addition, make a start and to judge whether the a-signal that transmits from receiving end detected and just be equivalent to above-mentioned Fig. 6 step S45 and handle.
The a-signal that receiving end is transmitted of making a start has detected at the appointed time, with interrupting in the page pictorial data transmission course, after 70 ± 5ms tone-off time, sends a B signal as tone signal to receiving end.
The B signal that receiving end transmits making a start has detected, and sends a paraphase a-signal to making a start.Making a start passes one paraphase a-signal to receiving end and has detected, at the appointed time after, send the paraphase B signal of its detection to receiving end.
Make a start with receiving end between the process that resets of traffic rate identical with the process that above-mentioned Fig. 8 (a) and above-mentioned Fig. 5 (b) illustrate respectively.Establishing again once being equivalent to Fig. 6 step S44 and Fig. 7 step S54 of the traffic rate that this Fig. 5 (b) illustrates handled.After this, make a start with receiving end between pictorial data communicate by letter, restart under the traffic rate that can reset in front.
Owing to carry out above-mentioned action, therefore, it is as follows also to have remarkable result on the basis of above-mentioned the 1st example effect in the 2nd example:
(1), in 1 page pictorial data communication process, can when any one time period, carry out to the change request of traffic rate with reset.Therefore, according to transmission data processing situation or reception data processing situation, can realize the traffic rate between more careful change the other side.
The change that above-mentioned the 2nd example also can be achieved as follows.In above-mentioned the 2nd example, asking to change traffic rate to the other side is to carry out according to the course of action shown in Fig. 8 (a) and (b).To this, change in the example at this, asking to change traffic rate to the other side is to carry out according to the course of action shown in Fig. 9 (a) and (b).
Fig. 9 (a) makes a start to change the course of action of traffic rate to the receiving end request.Fig. 9 (b) is receiving end changes a course of action from traffic rate to the request of making a start.
Fig. 9 (a) course of action is described earlier.When needing request to change traffic rate, can in page pictorial data transmission course, interrupt, send S signal and paraphase S signal to receiving end when making a start.This S signal becomes the signal of making a start to receiving end request change traffic rate.Transmission action at this S signal of making a start just is equivalent to above-mentioned Fig. 6 step S43 processing.Can judge in receiving end whether the S signal that transmits making a start detects just is equivalent to above-mentioned Fig. 7 step S55 and handles.
Make a start and send TRN signal and MP signal again to receiving end.After the S signal that receiving end transmits making a start detects, send S signal, paraphase S signal, TRN signal and MP signal to making a start.From make a start and the MP signal that sends respectively of receiving end, identical during with above-mentioned Mph signal illustrated in fig. 5, can comprise the data that expression self may maximum data rate.The MP signal that transmits from the other side respectively with receiving end of making a start has at least one to detect, and after the MP signal that is now sending distributes, sends a MP ' signal to the other side.After the MP signal that transmits from the other side respectively with receiving end of making a start has at least a MP ' who has detected and now sent to distribute, send a positive signal to the other side.Then, make a start with receiving end respectively according to maximum data rate represented from the MP signal that self sends and from the MP signal that the other side receives represented maximum data rate reset between the two traffic rate.But this traffic rate should be chosen side's speed slow from the maximum data rate shown in both MP signals.The course of action that resets of this communication rate just is equivalent to Fig. 6 step S44 and Fig. 7 step S54 processing.
Make a start and after receiving end sends a positive signal respectively, when the other side sends a B1 signal, receive the positive signal and the B1 signal that transmit from the other side.Make a start behind B1 signal of transmission, restart under the traffic rate that the pictorial data transmission can reset in front.After receiving end sends the B1 signal, under the traffic rate that resets in front, receive the pictorial data that transmits from making a start.
The following describes Fig. 9 (b) course of action.Receiving end can be judged needs when the request of making a start changes traffic rate according to Fig. 2 tables of data, then sends S signal and paraphase S signal to making a start.This S signal becomes receiving end changes signal from traffic rate to the request of making a start.In receiving end, the transmission course of action of this signal just is equivalent to above-mentioned Fig. 7 (a) step S53 to be handled, and is making a start, and can judge whether the signal that transmits from receiving end detected and inform Fig. 6 step S45 with regard to suitable one and handle.
Receiving end sends TRN signal and MP signal again with making a start.Make a start receiving end transmitted signal and detects after, below can in page pictorial data transmission course, interrupting, send S signal, paraphase S signal, TRN signal and MP signal to receiving end.
Make a start and receiving end between the resetting of traffic rate, the course of action that illustrates with above-mentioned Fig. 9 (a) is identical.The action that resets of this traffic rate just is equivalent to Fig. 6 step S44 and Fig. 7 step S54 processing.After this, make a start with receiving end between pictorial data communicate by letter, restart under the traffic rate that can reset in front.
Change in the example action process at Fig. 9, catch up with and state Fig. 8 course of action and compare, the change request of traffic rate and the course of action simple possible that resets.Therefore, make a start and receiving end between when not requiring fully synchronously, carry out then that to change the example action process as Fig. 9 more effective.
(the 3rd example)
Do an explanation according to Figure 10 and Figure 11 with regard to the 3rd example of the present invention below.
Figure 10 is the facsimile machine with the 3rd example when becoming receiving end, the communication operation flow chart that carries out under by CPU1 control.That is to say, above-mentioned Fig. 4 step S21, S22 are afterwards and then, in the time of can judging video memory 7 idle capacities whether greater than specified volume (as: 128K byte) (step S61), after the V34 function is set (step S62), just move to step S23, carry out and above-mentioned the 1st example or the identical action of the 2nd example, that is to say, carry out the action shown in Fig. 4 or Fig. 7.
On the other hand, when video memory 7 idle capacities during, just move to step S63 greater than specified volume.Then, be not set up the V34 function among the step S3 and directly move to step S64, implementation V8 communication control procedure in step S64.But the V34 function is not set up in preceding step, therefore, will carry out the communication control procedure of V34 communication control procedure modulation system consistent with each other in addition in next procedure S65.
When video memory 7 idle capacities did not reach greater than specified volume before pictorial data receives beginning, because video memory 7 idle capacities are less at first, therefore, in the time of can judging pictorial data reception hereafter, can not under high-speed communication speed, carry out, and the pictorial data traffic rate change have a kind of comparable V34 communication control procedure more the slow rate mode receive.When being considered to use high-speed communication speed, then do not carry out the V34 communication control procedure, and its communication control procedure in addition also can on the spot.
The 3rd example shown in above-mentioned Figure 10 also can be changed into as shown in figure 11.In the change example shown in Figure 11,, identical with above-mentioned Figure 10 situation when video memory 7 idle capacities during, the course of action of above-mentioned steps S61 greater than specified volume.To this, when the idle capacity of video memory does not reach specified volume when above, ITU-T suggestion T30 function just is set up (step S71).Then, do not carry out the V8 communication control procedure and carry out the communication control procedure (step S72) of following the T30 rules.
In this changes example, do not reach specified volume between the beginning when above when video memory 7 idle capacities receive in pictorial data, the pictorial data traffic rate adopt a kind of comparable V34 communication control procedure more slow rate side worker receive.Particularly change in the example,, therefore do not carry out the V8 communication control procedure because communication control procedure is changeless by the T30 rules at this.Even like this, to not influence of the communication between making a start.
This invention also can change following more specific
(1) recording portion 9 available electron photographic printers replace, and for example: the printer of employing thermal head or ink-jet printer etc. print.
Therefore (2) the tables of data content shown in Fig. 2 is an example after all, also capable freely changing.In the V34 communication control procedure, traffic rate can be set at 14 stages, for example: also can make the digital watch that an idle capacity video memory 7 corresponds respectively to 14 phase communication rate-allocation.More careful change traffic rate after having made like this.
(3) above-mentioned the 1st example and the 2nd example are integrated.That is to say,, can between the communication data page and in any one time period in the 1 page data communication process, can both realize the change of traffic rate.
Below the technical thought just from above-mentioned form, recognized do one and be described as follows.
(1) above-mentioned reception data processing equipment is the communication terminal of being put down in writing.It can be realized from receiving data to print processing.
(2) above-mentioned reception data processing equipment is the communication terminal that above-mentioned (1) is put down in writing.It comprises: deposit the reception memory of data in; The decoder of decoding in the limit is read on the limit when receiving data from memory; Be printed on register and request unit on the record-paper according to its decoded data.Above-mentioned request unit is according to the memory idle capacity, changes traffic rate to the request of making a start.After having done like this, can avoid before Data Receiving finishes, owing to memory overflows the infull problem of data that receives.
(3) communication terminal of being put down in writing, before Data Receiving began, when the not busy capacity of memory people does not reach specified volume when above, Data Receiving hereafter can be carried out Data Receiving with the rules beyond a kind of high-speed communication rules.
(4) above-mentioned transmission data processing equipment is the communication terminal that item is put down in writing.It can be finished from reading image on the original copy to transmission process.
(5) above-mentioned transmission data processing equipment is the communication terminal that above-mentioned (4) are put down in writing.It comprises: read the figure image reader on the original copy; Above-mentioned request unit is that the coding rate of reading processing speed or encoder when reader does not catch up with traffic rate, otherwise perhaps the time, changes traffic rate to the receiving end request.After having done like this, can avoid owing to can not transmit data exactly and the infull problem of transmission diagram image data.
(6) communication terminal put down in writing of above-mentioned request unit, it is to change traffic rate between the communication data page in order to request.
(7) above-mentioned request unit is the communication terminal of being put down in writing, and it is in order to change the traffic rate in the 1 page data communication process.
Claims (5)
1. communication terminal, it has in data communication process can change the traffic rate function, it is characterized in that being provided with:
To receiving the reception data processing equipment that data are handled;
According to the treatment situation of described processor, change the request unit of traffic rate to the request of making a start;
The speed setter that traffic rate between will making a start according to this request resets.
2. communication terminal as claimed in claim 1 is characterized in that:
Above-mentioned reception data processing equipment comprises:
Deposit the reception memory of data in;
According to the data in the memory, be printed on the register on the record-paper when receiving data;
Above-mentioned request unit is according to the memory idle capacity, changes traffic rate to the request of making a start.
3. communication terminal as claimed in claim 2 is characterized in that:
Be provided with the tables of data of setting between memory idle capacity and communication speed, above-mentioned request unit is according to its tables of data, can judge to making a start whether ask to change traffic rate, above-mentioned speed setter is to reset traffic rate between making a start according to tables of data.
4. communication terminal, it has in the digital communication process can change the traffic rate function, it is characterized in that being provided with:
To transmitting the transmission data processing equipment that data are handled;
According to described processing unit treatment situation, change the request unit of traffic rate to the receiving end request;
Reset the speed setter of traffic rate between the receiving end according to described request.
5. communication means, it can change traffic rate in data communication process, it is characterized in that:
According to transmission data processing situation or reception data processing situation, change traffic rate to the communication counterpart request, so that reset traffic rate between the other side.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP024384/1996 | 1996-02-09 | ||
| JP2438496 | 1996-02-09 | ||
| JP024384/96 | 1996-02-09 | ||
| JP127218/1996 | 1996-05-22 | ||
| JP127218/96 | 1996-05-22 | ||
| JP8127218A JPH09275481A (en) | 1996-02-09 | 1996-05-22 | Communication terminal equipment and communication method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1163529A true CN1163529A (en) | 1997-10-29 |
| CN1185857C CN1185857C (en) | 2005-01-19 |
Family
ID=26361885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971004544A Expired - Fee Related CN1185857C (en) | 1996-02-09 | 1997-01-31 | Communication terminal device and communication method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH09275481A (en) |
| KR (1) | KR970078400A (en) |
| CN (1) | CN1185857C (en) |
| HK (1) | HK1003920A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848094A (en) * | 2009-03-25 | 2010-09-29 | 佳能株式会社 | Communicator and this control method of communication apparatus |
| CN102017538A (en) * | 2009-04-20 | 2011-04-13 | 夏普株式会社 | Communication rate setting apparatus, method of controlling communication rate setting apparatus, content filtering system, communication rate setting apparatus control program, and computer-readable recording medium |
| CN101106697B (en) * | 2006-07-14 | 2014-12-03 | 索尼株式会社 | Data transmission system, receiving apparatus, and receiving method as well as sending apparatus and sending method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4585155B2 (en) * | 2001-09-07 | 2010-11-24 | 株式会社リコー | Transmission control method for communication terminal apparatus and communication terminal apparatus |
| KR100620382B1 (en) * | 2005-01-10 | 2006-09-11 | 삼성전자주식회사 | Communication apparatus and communication method |
-
1996
- 1996-05-22 JP JP8127218A patent/JPH09275481A/en active Pending
- 1996-11-02 KR KR1019960051707A patent/KR970078400A/en not_active Application Discontinuation
-
1997
- 1997-01-31 CN CNB971004544A patent/CN1185857C/en not_active Expired - Fee Related
-
1998
- 1998-04-17 HK HK98103249A patent/HK1003920A1/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106697B (en) * | 2006-07-14 | 2014-12-03 | 索尼株式会社 | Data transmission system, receiving apparatus, and receiving method as well as sending apparatus and sending method |
| CN101848094A (en) * | 2009-03-25 | 2010-09-29 | 佳能株式会社 | Communicator and this control method of communication apparatus |
| CN101848094B (en) * | 2009-03-25 | 2012-12-12 | 佳能株式会社 | Communication apparatus, control method for the communication apparatus, and storage medium |
| US8458772B2 (en) | 2009-03-25 | 2013-06-04 | Canon Kabushiki Kaisha | Communication apparatus, control method for the communication apparatus, and storage medium |
| CN102017538A (en) * | 2009-04-20 | 2011-04-13 | 夏普株式会社 | Communication rate setting apparatus, method of controlling communication rate setting apparatus, content filtering system, communication rate setting apparatus control program, and computer-readable recording medium |
| US8588092B2 (en) | 2009-04-20 | 2013-11-19 | Sharp Kabushiki Kaisha | Transmission rate setting device, transmission rate setting device control method, content-filtering system, transmission rate setting device control program, and computer-readable recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1003920A1 (en) | 1998-11-13 |
| CN1185857C (en) | 2005-01-19 |
| JPH09275481A (en) | 1997-10-21 |
| KR970078400A (en) | 1997-12-12 |
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