GB2221126A - The automatic prestore double speed modulation, transmission demodulation and recording remote control transfer system of FAX and telegraph - Google Patents

Abstract

This invention relates to an apparatus for receiving, storing and transmitting data using facsimile and telegraphy. Conventional facsimile telegraphic apparatus transmits, receives and produces a print-out of the received data. In contrast, the apparatus of the present inventor includes the faculties of (a) storing and printing out the data upon demand by the recipient, and (b) re-transmitting the stored data to a remote situation upon demand by the recipient or upon a demand signal received from the remote station. <IMAGE>

Description

TITLE : The Automatic Prestore Double Speed Modulation, Transmission, Demodulation and Recording Remote Control Transfer SyE.tem of FAX and Telegraph SUMMARY OF THE INVENTION In modern information transmission, owing to being convenient and fast, FAX and telegraph have been used widely in the transmission of written data; howeverr, the user must invest the money in purchasing the machine and the expense of the service time to transmit message, and the latter becomes a long lasting cost. Under such circumstances facsimile speed has always been the goal to be sought for in FAX industry. for example, the transmission speed of the FAX from G2 to G3 had increased several times.

In addition, while the transmission data is received unless there is a person to transfer it, the receiver in another place is unable to get the facsimile data. In a time fast transmitting information becoming a critical factor in social life nowadays, this is really a big shortcoming.

This case is to provide the transmission method with a design to add a storage medium buffer with the function of automatic prestore double speed modulation, transmission, demodulation and recording remote control transfer system to the FAX and telegraph, the storage medium provides three functions as follows: (A) On receiving: It has the function to identify whether the coming signal is in double speed or constant speed.

While the FAX or telegraph is started by incoming signal, to show that it has also the double speed system itself, once a specific signal in double speed comes, the memory of the storage medium would be initiated in double speed and record the data including the double speed identify ing signal and all succeeding signals to be output in slower speed later and printed by the printer-terminal interface of the FAX; if there is no double speed signal, it would be driven in constant speed continuously and record the data to be transmitted in constant speed by the counterpart.

(B) On transmitting: Before the output of the dial of FAX or telegraph, the storage medium is initiated first to re cord the data to be transmitted by the FAX or telegraph in slower speed, and then dial the communication line to transmit double speed transmission identifying signal.

If a specific signal to show that the counterpart has the same double speed storage medium is received in set time, the storage medium would transmit the signal to the co unterpart who has to same device in quicker speed; if the counterpart doesn't have this device, the signal would be transmitted counterpart doesn't have this device, the signal would be transmitted in constant speed.

(C) On receiving the instruction to transfer, the signal would be recorded and output in double speed or constant speed or cleared. The design ofthis case is able to eliminate the shortcoming of the FAX or telegrah referr ing to the lengthening of the time of communication due to the frequency response of the input and output inter face being too slow, and accept the instruction of other FAX to perform facsmile output or clear the recorded signal.

DETAILED DESCRIPTION OF THE INVENTION: On account of the speed of transmission of the FAX or telegraph has relations with the cost of long duration of the user and the social costs of the service time of the communication system, the raise of the speed of transmission is the goal to be sought for by everybody. But the speed of transmission of the FAX and telegraph is restricted by the speed read-in and Print-out interface at present, and the frequency response of the mechanical-electrical type construction of the input device of telegraph is slow, it is unable to perform fast transmission and takes longer time on the line, so it causes larger load of the communication system and wastes social costs and results into bigger burden of the expense of the user.In addition, while the acceptor of information on another place wants to know whether there is any information coming in and the contents of the facsimile during his absence via the assistance of another FAX, unless he is assisted by somebody at the FAX, the FAX would be unable to perform the function of this requirement.

The design of this case is to provide the function of automatic prestore double speed modulation, transmission, demodulation and recording remote control transfer system of the FAX or telegraph by means of installing a storage medium the storage medium provides three functions as follows: (A) On receiving: It has the function to identify whether the coming singal is in double speed or constant speed.

While the FAX or telegraph is started by incoming signal, the memory to be driven in constant speed would give an identifying signal to show that it has the double speed comes, and then the memory of the storage medium would be initiated in double speed and record the data in cluding the double speed signal and alll succeeding signals to be output with slower speed later and printed by the printer-terminal interface ofthe FAX; if there is no double speed signal, it would be driven continuously in constant speed and record the data to be transmitted in constant speed by the counterpart.

(B) On transmitting: Before the output of the dial of FAX or telegraph, the storage medium is initiated first to record the data to be transmitted by the FAX or tele graph, the storage medium is initiated first to record thedata to be transmitted by the FAX or telegraph in slower speed, and then dial the communication line ot transmit double speed transmission identifying signal.

If a specific signal to show that the counterpart has the same double speed storage medium is received in set time, the storage medium would transmit the signal to the counterpart who has the same device in quicker speed; if the counterpart doesn't have this device, the signal would be transmitted in constant speed.

(C) On receiving the instruction to transfer, the signal would be recorded and output in double speed or con stant speed or erased. The design of this case is able to eliminate the shortcoming of the FAX or tele graph referring to the lengthening of the time of com munication due to the frequency response of the input and output interface being too slow, and accept the instruction of other FAX to perform facsimile output or erase the recorded signal.

The process of operation the output of FAX or telegraph with the storage medium is given as follows: Start machine -3 the memory of the storqge medium records data in low speed to match up with the input interface # the input interface is initiated # input completed --p the memory ofthe storage medium returns to the start point and halts # manual or automatic dial (if not switched on, it would dial again on set time automatically) switched on - > advise the counterpart that this is double speed transmission signal --) recevied the identifying signal to show that the counterpart has double speed storage medium storage medium is initiated in high speed (the storage medium is initiated in high speed (the storage medium of the receiving side is initiated in high speed simultaneously) - > transmission - > transmission -+ transmission completed - > the output side starts the machine # clear data - > (the memory of the storage medium of the receiving side outputs in low speed to match up with the printer-terminal interface) -) completed.

If no signal to show that the counterpart is double speed system comes within the set time, it means that the counterpart has no duble speed storage medium, the transmission would still be performed in constant speed; in the design to have the double speed and transfer function, what the receiving side received on receiving time include the above receiving signal and another specific receiving and transfer instruction.The sequence of the operation of receiving is: Preparatory state -) received input signal - > identify the coming code )with or without transfer code), if no -- > entering intn the above constant speed or double speed recelving slaty untll the completion of receiving 9 the memory of the storage medium outputs anew and initiates the printer-terminal interface -5 completed printing and enter into prepartatory state.

If received the transfer code after receiving the above input signal, the succeeding action flow is: - the memory skip to the start point of data storage or not - received the double speed driving execution instruction to operate and control the memory of the storage medium to output with double speed driving; or received clearing instruction to clear the data -) complete one or more than one of the above three instructions -) to end executing instruction --) prepare and complete the transfer function.

On account of the above operation flow broke through the restriction of the big difference of the transmission speed of the mechanical-electrical input and output interface a lot of line transmission time might be saved to add with the funciton of the transfer to be controlled remotely by external line.A description of the block diagram of the system is given as follows: Drawing is the block diagram of the design, it includes chiefly: ---- Input interface 101, 201 : it includes the read-out of the FAX, the drive interface or the cassette tape or keyboard interface of the telegraph to be used to receive the input of manual or digital signal; ---- Input interface 101, 201 : it includes the read-out of the FAX, the drive interface or the cassette tape or keyboard interface of the telegraph to be used to receive the input of manual or digital signal; ---- Output interface 102, 202 : it includes the printerterminal interface or typing interface to be used to print the signal received on paper or input into computer system; ---- Central Control Unit (CCU) 103, 203 : to be used to produce dial number, receive and give the sequence execuction to the storage medium output device and input device and give the identifying instruction to show that the machine has double speed function; ---- The storage medium 104, 204 : it is a digital device including the Random Access Memory (RAM) being able to read out and input in different speeds and connect with the CCU to execute the functions of the interfaces of returning to the original point, input, output, etc., or it is an analog device to execute with tape.On receiving: double speed read in -) completing to return to the orginal point --) constant speed read out (It may clear the original data simultaneously or execute clearign additionally); on transmitting : constant speed read in completed --) return to the original point -3 fast read out (It may clear the original data simultaneously or clear additionally); the storage medium includes further to have setting and decoding device, a set signal memory being able to set and erase the set signal and the comparative unit in order to identify the comign code on receiving the signal to be transferred in thecoming line and give instruction to operate and con trol tha above digital or analog memory device to perform the following operation of response:: ---- In constant speed to the contents to be transmitted in the ocming line to match up with the coming signal of general FAZ without speed-up device; ---- In double speed to the double speed transmission signal transmitted by thecoming line to match up with the coming signal of the FAX with speed-up device; After the above constant speed or double speed output completed, the memory returns to the original point to be in preparation state; ---- Receive the clearing code to clear all the contents in the memory.

The speed of the double speed and constant speed of the above storage medium interface is fixed in general, but it might be adjusted to match up with the frequency response in accordance with the structure or the degree of loss of the matching machanical-electrical interface.

In addition, on practical execution, the above storage medium may be either the intergarted structure of the FAX or telegraph or installed separately, however, no matter it is integrated structure or to be installed separately, there are always the following transission interfaces between the storage medium and the main machine: ---- The dial execution instruction transmission interface to receive manual or automatic dial; ---- The output execution instruction transmission interface; ---- The input execution instruction transmission interface; ---- The clearing instruction interface including manual operation clearing or while the data are overlapped due to the storage is full.It would receive input and clear the data on the overlapping section simultaneously; ---- The setting and decoding interface to be used to identify whether the coming signal is constant speed or double speed after being initiated and receive the execution of the code in the coming line, tthe instructions of clearing, constant speed output storage content, fast speed output storage content and returning to the original point to operate and control the memory unit relatively; ---- Signal line; ---- Power line (If there is no separate power supply).

Besides, on practising the design of this case, the transfer system might be simplified to be with double speed transfer function solely to decrease the cost. The action flow constituted by hardware and software is shown in Table 2. The process of transfer is give as follows: Preparing to start the machine to be switched on by dialing received the transfer code received the execution instruction (to transmit the content of the memory in high speed or clear the content of the memory ) --) the momory operates in high speed completed --) the memory returning to the original point to complete the operation of transfer; or to simplify it to be that the output and input is the only general machine type with constant speed transmission to have the storage medium of transfer. The action flow is shown in Table 3, the process of oepration of the input to act as receiving is given as follows: The preparatory state of starting machine -) received input signal -- > received transfer code -; the memory of the storage medium returning to the originalpoint -3 the memory of the storage medium startung constant speed output complection; the shut down of the completion of transmission includes to De attained by transferring one of codes, if it is required to clear the memory, the shut down may be attained by one ofthe coming in operative codes; or in universal practice state to omit the device of identifting quickness and slowness and transmit and tranfer with another machine which has already had the same double speed storage medium.The action flow to be constituted by hardware and software is shown in Tale 4; i.e.

the sequence of the oepration of the output of the one part is given as follows: Start machine -- > the memory of the storage medium records data in double speed to match up with the input interface -t the input interface is initiated -) input completed --) the memory of the storage medium returned to the orininal point and halted - > manual or automatic dial (if not switched on, dial again on set time ) --b switched on --) the storage medium double speed is initiated (the memory ofthe storage medium of the receiving part is initiated in double speed simultaneously)- > transmission transmission completed - celaring data -+ the output part shut down (the memory of the storage medium of the receiving part returning to the starting point ) -d (the printerterminal interface of t he receiving part is initiated) the storage medium of the receiving part outputs in constant speed to match up with the printer-terminal interface) --) completed.

The sequence of the operation of transfer is given as follows: Preparing to start machine to be switched on by dialing -o received transfer code -T received the execution instruction (to transmit the content of the memory in double speed or clear the content of the memory) --) the memory operates in double speed -- > completed -+ the memory returns to the original point to complete the operation of transfer.

In summary, the automatic prestore double speed modulation, transmssion, demodulation and recording remote transfer system of the FAX to telegraph in this case provides to speed up the signal ofthe FAX or telegraph to be output automatically and to reduce the speed of the social costs and personal burden resulted from the lengthening of communication time due to slower frequency response of the mechanical-electrical interface, as well as the ability to receive the specific initiating code of the input line and transmit the facsimile signal to be received and stored in constant speed to the coming line to get the function of transfer for the covenience ofthe exchange of information, the system is practical, you are requested to examinate and approve.

BRIEF DESCIPTION OF THE DRAWINGS: Figure 1 is the block diagram of the system of this design.

Claims (5)

1. The function of the automatic prestore double speed modulation, transmission, demodulation and recording remote control transfer system of the FAX or telegraph, the storage medium provides three functions as follows: (A) On receiving : It has the function to identify whether the comign signal is in double speed or con stant speed.

While the FAX or telegraph is started by incoming signal, the memory to be driven in constant speed would give an identifying signal to show that it has also the double speed system itself, once a specific signal in double speed comes, and then the memory of storage medium would br initiated in double speed and records the data including the double speed identifying signal and all succeeding signals to be output with slower speed later and printed by the printed by the printer-terminal interface of the FAX if there is no double speed signal, it would be driven in constant speed continuously and record the data to be transmitted in constant speed by the counterpart.

(B) On transmitting : Before the output of the dial of FAX or telegraph, the storage medium is initiated to record teh data to be transmitted by the FAX or telegraph in slower speed, and then dial the communi cation line to transmit double speed transmission identifying signal. If a specific signal to show that the counterpart has the same double speed storage medium is received in set time, the storage medium would transmi the signal to the counterpart who has the same device in quicker speed; if the counterpart doesn't have this device, the signal would be trans mitted in constant speed.

(C) On receiving the instruction to transfer, the signal would be recorded and output in double speed or con stant speed or cleared. The design of this case is to be able to eliminate the shortcoming of the FAX or telegraph referring to the lengthening of the time of communication due to the frequency response of the input and output interface being too slow, and accept the instruction fo other FAX to perform facsimile output or clear the recorded signal.

The process of operation of the output of FAX or telegraph with the storage medium is given as follows: Start machine - the memory of the storage medium records data in low speed to match up with the input interface -o the input interface is initiated - input completed the memory of the storage medium returning to the start point and halted manual or automatic dial (if not switched on, it would dial again on set time autoamtically ) -T switched on advise the counterpart that this is double speed transmission signal -) received the identifying signal to show that the counterpart has double speed storage medium is initiated in high speed (the storage medium ofthe receiving side is initiated in high speed simultaneously) -- > transmission -t transmission completed - > the output side starts the machine -j clear date -- > (the memory of the storage medium of the receiving side returning to the start point) --) (the printer-terminal interface is initiated) -- > (the storage medium of the receiving side output in low speed to match up with the printer-terminal interface) -) completed.

If no signal to shown that the counterpart is double speed system cmes within the set time, it means that the counterpart has no double speed storage medium, the transmission should still be peformed in constant speed;in the design to have the double speed and transfer function, what the receiving side received on receiving time include the above receiving signal and another specific receiving and transfer instruction.The sequence of the operation of receiving is: Preparatory state -9 received input signal - > identify the coming code )with or without transfer code), if no - entering into the above constant speed or double speed receiving state until the completion of receiving - > the memory of the storage medium output anew and initiate the printer-terminal interface --) completed printiny and enter into preparatory state.

If received the transfer code after receiving the above input signal, the succeeding action flow is : the memory skip to the start point of data storage or not -) received teh double speed driving execution instruction to operate and control the memory of the storage medium to output with double speed driving; or received clearing instruction to clear the date$# complete one or more of the abovethree instructions - to end executing instruction -) prepare. and complete the transfer function.

On account of the above operation flow broke through the restriction of the big difference of the transmission of the mechanical-electrical input and output interface, the time of the transmission on t he line is saved, and the funciton of the transfr to be controlled remotely by external line which includes cheifly: ---- Input interface: It includes the read-out of the FAX the drive interface or the cassette tape or keyboard interface of the telegraph to be used to receive the input of manual or digital signal; ---- Output interface : It includes the printer-terminal interface or typing interface to be used to print the signal received on paper or input into computer system; ---- Central Control Unit (CUU) :To be used to produce dial number, receive and give the sequence execution instruction to the storage medium, output device and input device and give the identifying instruction to show that the machine has double speed function; ---- The storage medium : It is a digital device including the Random Access Memory (RAM) being able to read out and input in different speeds and connect with the CCU to execute the functions of the interfaces of returning to the original point, input, output, etc., or it is an analog device to execute with tape.On receiving : double speed in --y completing to return to the original point --) constant speed read out(It may clear the original data simultaneously or execute clearing additionally); on transmitting : constant speed read in completed --) return to the original point --N fast read out (It may clear the original data simultaneously or clear additionally); the storage medium includes further to have setting and decoding device, a set signal memory being able to set and erase the set signal and the comparative unit in order to identify the coming code on receiving the signal to be transferred in the coming line and five instruction to operate and control the above digital or analog memory device to perform the following operation of response:: ---- In constant speed to the contents to be transmitted in the coming line to match up with the coming singal of general FAX without speed-up device; --- In double speed to the double speed transmission signal transmitted by the coming line to match up with the coming signal of the FAX with speed-up device; After the above constant speed or double speed output completed, the memory returns to the original point to be in preparation state; ---- Receive the clearing code to clear all the contents in the memory.

There are always the following transmission interfaces between the storage medium and the main machine: ---- The dial execution instruction transmission interface to receive manual or aumatic dial; ---- The output execution instruction transmission interface; ---- The input executin instruction transmission interfaces; ---- The clearing instruction interface including manual operation clearing or while the data are overlapped due to the storage is full.It would receive input and clear the data on theoverlapping sectin simultaneously; ---- The setting and decoding interfaces to be used to identify whether the coming signal is constant speed or double speed after being initiated and receive the execution of the code in the coming line, the instruct ions of clearing, constant speed output storage content, fast speed output storagecontent and returning to the original point to operate and control the memory unit relatively; ---- Signla line; ---- Power line (If there is no separate power supply).

The double speed and constant speed of the above storage medium is fixed in general, but they may also be adjusted to match up with the frequency response in accordance with the structure of the machanical-electrical interface of the machine type to be matched up or the de gree of loss.

2. The transfer device stated in claim 1 includes the quick ness and slowness identifying device tobe used for the transmision and transfer of the other machine which has the same double speed storage medium. The sequence of operation is given as follows: Start machine -y the memory of the storage medium records data in low speed to match up with the input in terface --) the input interface is iitiated -) input completed -) the memory of the storage medium returns to the original point and alts -* manual or automatic dial (if not switched on, it would dial anew automatically) --) switched on -2 the storage medium is initiated in double speed (the memory of the storage medium of the receiving side is also initiated in double speed simultaneously) transmission -) transmission --) transmission completed -d the memory of the storage medium returns to the original point and halts - > manual or automatic dial (if not switched on, it would dial anew automatically) switched on -) the storage medium is initiated in double speed (the memory of the storage medium of the receiving side is also initiated in double speed sim ultaneously~) # clearing data -) the output side close down --b (the memory of the storage medium of the receiving side outputs in constant speed to match up with the printer-terminal interface) -+ completed.

The sequence of the operation of the transfer is given as follows: Prepare to start machine --f to be switched on by dial -+ received the transfer code - received the execution instruction (to transmit the content of the memory in high speed or clear the content of the memory in high speed orclear the content of the memory) - > the memory operates in double speed - > completed -) the memory returns to the original point to complete the operation of t ransfer.

3. The transfer device stated in claim 1 provides the double speed transfer function, the process of transfer is given as follows: Preparee to start machine # to be switched by dial # received transfer code -) received execution instr uction (to transmit the content of the memory in double speed or clear the content of the memory) # the memory operates in double speed -2 completed --) the memory re truns to the original point to complete the operation.

4. The transfer device stated in claim 1 includes the feature that the output and input is the general machine type to transmit in constant speed to provide the storage medium the process of the operation is given as follows: Preparatory state of starting machine -- > received the input signal -) received the transfer code -- the memory of the storage medium returns to the original point -- > the memory of the storage medium starts output in constant speed - completed; the close-down to have completed the transmission includes to be attained by one of the codes of the transfer, if it requires to clear the memory, it is also being able to be attained by comign code.

5. The storage medium stated in claim 1 to 4 might be a structure to be integrated with the FAX or telegraph or installed seaprately.