JPS6255748B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention has a message storage for storing messages, and while creating messages locally,
The present invention also relates to a telegraph typewriter that can receive telegrams online.

Conventionally, message storage for telegrams (hereinafter referred to as MS
It is sometimes abbreviated as. ) In a telex typewriter without a telegram, the printing mechanism is occupied with printing the received telegram while receiving the telegram. For this reason, it is either impossible to create a message for transmission locally in parallel with reception, or the paper tape is punched without being able to confirm the contents using only the keyboard and punch section. Therefore, by having a memory as a message storage, dividing this memory area into an area for sending messages and an area for storing received messages, and temporarily storing received messages in the receiving area of the memory, it is possible to receive messages. At the same time, a method was proposed in which a message for transmission could be created while being checked by printing it out on a monitor at the printing unit. However, it is impossible to have infinite message storage; there is a limit to message storage.

Therefore, even with this method, if a message longer than the capacity of the receiving MS is received, it will naturally not be able to fit into the receiving MS.

Therefore, for the portion that cannot fit, the creation of the message for transmission is interrupted, the telex is switched to online mode, and the message that cannot fit is printed out in real time at the same time as it is received.

Therefore, the received message is printed after the transmitted message is monitored. Moreover, the received message is from the middle, and the first part is still the receiving MS.
remains stored in the . Therefore, when the entire message has been received, the operator prints out the remaining message in the receiving MS and re-edits it while determining the context with the previously printed message in real time. There was a drawback that it was necessary.

Therefore, the present invention provides a method for printing received telegrams in telex, which allows continuous reception of complete messages from the beginning even when a transmitted telegram is being created locally, when a telegram is received from a line. It is something to do.

Hereinafter, it will be explained in detail using the drawings.

Fig. 1 is a block diagram showing the configuration of a telex typewriter having a memory for message storage of transmitted and received messages. A main control unit that performs control, 3 a printing unit that prints a monitor of the received message and the transmitted message, 4 a message storage that stores the transmitted message and the received message, 5 a keyboard unit that creates the transmitted message, 6
7 is a punch unit that punches out a message input from the keyboard unit 5 or a received message onto a paper tape; 7 is a punch unit that punches out a message input from the keyboard unit 5 or a received message onto a paper tape; It is a changeover switch that can be used to switch between

Next, the operation will be explained.

Generally, there are three types of line speeds used for international telecommunications: 50BPS, 75BPS, and 100BPS.

Therefore, the speed of each is 6.6 characters/second
seconds, 10 characters/second, slow at 13.3 characters/second. On the other hand, the printing unit has a printing capacity of about 40 characters/second so that it can keep up with the user's operating speed when used locally.

Therefore, there is a fairly large difference between line speed and printing speed. The present invention focuses on this point, and for example, if the keyboard section 5, punch section 6, and printing section 3 are set to local, and a message is sent from the other station in parallel while creating a transmission message. , without immediately switching the printing unit 3 online, store as much of the received message as possible in the receiving MS 4b of the message storage 4, and when a predetermined number of characters or more is received, switching the printing unit 3 online, and then For reception after performing a return/change action.
This starts printing the message stored in MS4b from the beginning.

Hereinafter, a detailed explanation will be given also using FIGS. 2 and 3.

FIG. 2 shows the message storage 4. The boundary between the sending MS 4a and the receiving MS 4b is reserved in advance according to the difference between the speed of the communication line and the printing speed. When no message is received, the MS 4a is used for transmission.

When a message is received by the communication control unit 1, at that point, the boundary is set as the reception MS 4b from the address reserved in advance by the near-end setter 9.

Also, when the message is received, it is already ready for reception.
Beyond the address reserved at the beginning of MS4b,
When a message for transmission is stored, the next address becomes the first address of the receiving MS 4b, and that address is set in the S counter 8.

The S counter 8 counts in synchronization with the speed of the communication line and is incremented every time one character is received.

The received message is stored in the receiving MS 4b using the contents of the S counter as an address.

9 is a near-end setting device, which is set according to the difference between line speed and printing speed.

That is, when the S counter sequentially stores the received message up to the address preset by the near-end setter 9, it is detected by the comparator 10 and a detection signal is sent out. In response to this detection signal, the changeover switch 7 is switched, the printing section 3 is switched online, and a return/line feed is performed to complete the preparation for printing the received message.

Furthermore, the H counter 11 starts operating in response to a signal from the comparator 10. The H counter 11 is counted up in accordance with the printing speed of the printing section 3, and its initial value is the same as the initial value of the S counter 8.

That is, the H counter is an address counter for sequentially reading and printing received messages stored in the receiving MS 4b.

H counter 11 starts operating and first receives data.
The received telegrams stored in the MS4b are sequentially read out and printed starting from the first address.

During this time, the S counter 8 is sequentially counted up in accordance with the line speed, and the received message continues to be stored in the receiving MS 4b using the contents of the S counter as an address.

Eventually, when the H counter 11 catches up with the S counter 8, it is detected by the comparator 12 and a detection signal is sent out. In other words, since no more received messages are stored in the receiving MS4b,
The printing section 3 will no longer be able to print the contents stored in the receiving MS 4b.

Therefore, by the output signal of the comparator 12,
The switching circuit 13 is switched and the message received by the communication control section 1 is directly printed by the printing section 3.

As described in detail above, according to the present invention, in the receiving method of a telex device having a printing section faster than the receiving speed of a message, the printing start point of the received message is determined in advance according to the difference between the printing speed and the receiving speed. is calculated and set as the near end, and when a message is received from the other station while creating a transmission message locally, the printing mechanism remains local,
The received messages are sequentially stored in the reception message storage, and when a near-end is detected, the printing mechanism is switched online and printing starts from the beginning of the messages stored in the reception message storage. When there is no more message to be sent, by switching to directly print the received message, even if the received message is longer than the capacity of the message storage for reception, the message can be cut off midway, or the message can be edited before or after. This has the effect of being able to print continuously from the beginning without having to do anything. Furthermore, if the transmission message being created locally is completed before the near end is detected, the creation of the message will not be interrupted every time a message from the partner station is received, allowing comfortable operation.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the outline of the present invention, Figure 2 is a block diagram showing the outline of the present invention.
The figure is a diagram for explaining the structure of the message storage, and FIG. 3 is a diagram for explaining the printing operation when a message is received while a message to be transmitted is being created locally. 1... Communication control section, 2... Main control section, 3... Printing section,
4...Message storage, 5...Keyboard section, 6...Punch section, 7...Selector switch, 8...S counter, 9
...Near end setting device, 10, 12...Comparator, 11
...H counter, 13...switching circuit.

Claims (1)

[Claims] 1. In a method for printing a received message of a telex device that is equipped with a message storage and prints the stored received message after the received message is stored in the message storage, a printing mechanism that has a printing capability faster than the receiving speed is used. In preparation, according to the difference between the printing speed and the receiving speed, a part of the message storage is reserved in advance as message storage for received messages, and when received messages are sequentially stored in this message storage for received messages. The address to be determined at the start point of printing is calculated and set as the near end. While the message is not being received, the entire message storage is used as the message storage for sending, but when the message is received, the printing mechanism uses the local The received messages are stored in the previously reserved message storage for reception in order, and when the near end is detected, the printing mechanism is switched online and the message stored in the message storage for reception is stored at the beginning. A received message printing method characterized in that printing is started from , and when there are no stored messages to be printed, the message received by a communication control unit is switched to be sent directly to a printing mechanism for printing.