JPH0154734B2 - - Google Patents

Description

Detailed Description of the Invention Technical Field The present invention relates to a data transmitting device, and in particular, when transmitting data with an underline, if space data related to tab data or line feed data is being transmitted, the space data is data without an underline. The present invention relates to a data transmitting device configured to transmit data as follows.

BACKGROUND ART A data transmitting device is known that can store data such as character data representing characters input from a keyboard, line feed data, tab data, etc. in a text memory and sequentially transmit the contents of the text memory to an external device. When such a data transmitting device sequentially transmits data stored in its text memory, when transmitting a group of underlined characters, the first position of the character code corresponding to such characters is Character data representing an underlined character is transmitted to an external device by transmitting an underline set code and also transmitting an auto underline reset code at the end of transmitting the character codes. However, in such conventional transmitting devices, when transmitting tab data, the area from the current data position to the next tab position is replaced with space data, and when transmitting line feed data, it is replaced with space data from the origin (absolute margin) of the next line. It was common to send data with space up to the left margin replaced with space data. Therefore, there is a drawback that the replaced space data is underlined.

Purpose of the Invention The present invention has been made against the background of the above-mentioned circumstances, and its purpose is to improve the space created by line feed or tab operations when printing is performed based on transferred data. An object of the present invention is to provide a data transmitting device capable of transferring underlined data without adding an underline between them.

Structure of the Invention In order to achieve the above object, the data transmitting device of the present invention includes (1) auto-underline setting means for underlining transmission data, and (2) storing the auto-underline setting state. (3) auto underline clearing means for clearing the auto underline set state; (4) when line feed data or tab position data is read from the text memory during the auto underline set state; The present invention is characterized by comprising an auto-underline control means for clearing the auto-underline set state of the transmitted data while the space data related to the data is being transmitted.

Effects of the Invention By doing this, as shown in the claim correspondence diagram of FIG. 1, when line feed data or tab position data is read from the text memory in the auto underline setting state, the related space data can be transmitted. The inside of the page is set to an auto-underline reset state by the auto-underline control means, so when printing is performed based on the transferred data, underlines are automatically placed in spaces created by tab operations or line feed operations. There is no line attached.

Embodiment FIG. 2 shows an example of an electronic typewriter with a data transfer function to which the present invention is applied.
0 and a keyboard section 12. A platen 16 supported by a frame and a carriage 18 movable in a direction parallel to the platen 16 are provided inside the transparent cover 14 of the keyboard section 12, and a print head 20 fixed to the carriage 18 is provided. By being moved relative to the printing paper held by the platen 16, desired characters, symbols, etc. can be printed on the printing paper in a desired arrangement. Note that when the transparent cover 14 is opened, it serves as a paper guide for printing paper that is tilted slightly backward.

A power switch 22 is installed on the side of the keyboard section 12.
In addition, a multi-pole connector 24 is provided on the side surface of the printing unit 10 for connection to an external device (not shown) such as an external microcomputer or other electronic printer. Further, a large number of operation keys are arranged on the upper surface of the keyboard section 12. The operation keys are a letter key 26 and a space key 2, each with an alphanumeric character engraved on it.
8, code key 30, tab key 32, line feed (carriage return) key 34, left margin key 3
6, right margin key 38, tab set key 40,
It is composed of a tab clear key 42, a plus key 44, a mode switching key 45, a continue key 46, a stop key 47, and the like. In addition, in the center of the upper surface of the keyboard section 12, there is a multi-digit display 48 that can display a large number of digits (approximately 16 digits) of characters, symbols, etc.
are arranged so that characters at desired positions stored in a text memory, which will be described later, are displayed.

The electronic typewriter having the external structure as described above is equipped with the circuit shown in FIG. That is, the CPU 50 is connected to a keyboard 54, a ROM 56, a RAM 58, a printing mechanism driver interface 60, a display controller 62, and an external interface driver receiver 64 housed in the keyboard section 12 via a data bus line 52. CPU
50 uses the temporary memory function of RAM58.
The signals input from the keyboard 54 are processed according to a program stored in advance in the ROM 56, and the printing mechanism driver interface 60 drives the printing mechanism 66 housed in the printing section 10 to print a desired image on the printing paper. While printing a large number of characters in an array, the display controller 62 drives the display 48 to display characters at a predetermined position on the display 48. Also CPU5
0 is driver receiver 64 for external interface
Data is exchanged between the controller and an external device such as a microcomputer or an electronic printer via an external interface 68. The above-mentioned RAM 58 is a storage means.
Inside is a format memory that stores format data for the arrangement of printed characters, such as margin data and tab position data, and a large number of character data that are stored sequentially in the printing order, and are mixed among character data. A text memory for appropriately storing the format data, line feed data, etc. is provided. The above character data includes not only alphanumeric characters, numbers, symbols, etc., but also space data for moving the printing position. In short, character data is data related to moving the carriage, and requires changing the printing position.

The operation of the electronic typewriter constructed as described above will be explained according to the flowchart shown in FIG.

First, an initialization process (not shown) is executed simultaneously with the operation of the power switch 22 of the electronic typewriter, and the contents of various counters, registers, etc. are cleared. Then, the character key 2
In accordance with operations such as 6, character data corresponding to desired characters are sequentially stored in the text memory, and format data such as line feed data and tab position data are appropriately stored to arrange the character arrangement. Even without such an input operation, the text memory is backed up by the battery even when the power switch 22 is not turned on, so the previously input data may be retained. Then, prior to transferring the contents of the text memory, the mode switching key 45 is switched to the terminal mode side, and the code key 30 and continue key 46 are simultaneously operated to enter the ON-LINE state. Note that when the stop key 47 and code key 30 are operated simultaneously, the ON-
LINE state can be resolved.

Next, step S1 is executed, and it is determined whether a transfer operation has been performed. That is, it is determined whether the text key, in other words, the code key 30 and the plus key 44 have been operated simultaneously to issue a transfer start command. If the transfer start command is not issued, other processing will be performed, but
When the transfer start command is issued, steps S2 and subsequent steps are executed. Other processing is not particularly necessary for explaining the present invention and will therefore be omitted. When data transfer (transmission) is started, one piece of data is read from the beginning of the data stored in the text memory in step S2, and the read data is transferred to steps S3 and S.
4, S5, and S6, it is determined whether the data is underline set data (code), underline reset data (code), space data (code), tab position data (TAB code), or line feed data (CR code). be done.

If the read data is character data, it is not any of the above data, so proceed to step S.
Step S7 is executed and the one character data is sent to the external device, and step S8 is further executed to determine whether the text has ended, that is, whether all the data stored in the text memory has been sent. That is, the process continues in step S2 until it is determined in step S8 that the text is finished.
The following is repeatedly executed to continuously transmit each character data in the text memory. Here, a character group with an underline is created by storing underline set data immediately before the character code corresponding to the character group and storing an underline reset code immediately after the character group. It is distinguished from those without lines. Therefore, when transferring such data, the underline set data is read out in step S2 prior to transmitting the character code corresponding to the character with an underline. In such a case, the read data is determined to be underline set data in step S3, so steps S9 and S10 as automatic underline set means are executed to store the underline set state. An auto underline flag, which is a storage means, is set in a predetermined register, and auto underline set data is transmitted to an external device. Then, in the following cycle, character data corresponding to characters with underlines are transmitted sequentially in the same manner as described above, and when the underline set data stored immediately after the character data group is read out in step S2, the data is transmitted in step S4. Since it is determined that the data is underline reset data, step S11 as an automatic underline reset means is performed.
and S12 are executed to clear the auto-underline flag and send the auto-underline set data to the external device. As a result, the external device also stores the data in the transmission order, and the underline set data and underline reset data are stored immediately before and after the character data group corresponding to the character group with an underline, respectively.

If the data read out in step S2 is space data for creating a space between characters, it is determined in step S5 that the read data is space data, and then step S13 is performed. is executed, and it is determined whether the auto underline flag is set. If it is set, step S14 is executed and underline data is transmitted in place of the space data, but if it is not set, step S15 is executed and the space data is transmitted as is. It is accompanied by underline data or a space for one character.

If the data read in step S2 is tab position data or line feed data, it is determined in step S6 that it is tab position data or line feed data, and step S16 is executed. In step S16, the number of spaces is set, and in the case of tab position data, the next tab position is determined based on the digit position for specifying the tab position represented by the signal stored together with the tab position data. Number of spaces up to (number of blank feeds)
is calculated and set in a predetermined register. If the data is line feed data, the number of spaces from the origin (absolute left margin) to the left margin (LM) is calculated and set in a predetermined register. The number of spaces is also determined based on the signal stored with the line feed data. Then, step S17 is executed to determine whether or not the data is line feed data. If it is not line feed data, steps S8 and subsequent steps are repeatedly executed; however, if it is line feed data, step S1 is first executed.
8 is executed to send the line feed data to the external device, and then step S19 is executed to determine whether the number of spaces set in step S16 is zero. If the number of spaces is zero, the step S8 is repeated; if the number of spaces is not zero, the following steps S20 to S25 are repeated until the number of spaces set becomes zero.

That is, in steps S20 and S21, the underline reset data is sent to the external device, and subsequently, the space data is sent to the external device.
After that, step S22 is executed and 1 is subtracted from the set number of spaces. Next, it is determined whether the subtracted result has become zero in step S23, and if it has not become zero, the steps S20 to S2 described above are performed.
3 is executed repeatedly, but step S becomes zero.
24 is executed and it is determined whether the auto underline flag is set. If it is not set, step S19 is directly executed because the underlined data is not being transmitted, but if it is set, step S25 is executed and the auto-underlined data is sent to the external device. After that, step S19 is executed again. Therefore, S6, S20, S24, S25
forms an underline control means that clears the underline set state of the transmitted data when tab position data or line feed data is read from the text memory in the auto underline set state, and during subsequent space data transmission. There is.

As described above, according to this embodiment, in the automatic underline reset state, when space data related to tab position data or line feed data is transmitted, underline reset data is transmitted before the space data is transmitted, and the underline reset data is transmitted before the space data is transmitted. After data transmission is completed, auto underline set data is transmitted. Therefore, when printing or display is performed on the external device based on the transmitted data, the auto underline flag of the external device is reset by the auto underline set data. In addition, the auto underline reset data sets the auto underline reset state, and the text is underlined to the characters printed or displayed according to the auto underline flag, so tab operations or The part corresponding to the space created by the line feed operation is not underlined.

The above-mentioned embodiment is merely one embodiment of the present invention, and various modifications may be made to the present invention without departing from the spirit thereof.

[Brief explanation of drawings]

FIG. 1 is a diagram corresponding to claims of the present invention. Second
The figure is a perspective view showing an example of an electronic typewriter to which the present invention is applied. FIG. 3 is a block diagram showing a circuit included in the electronic typewriter of FIG. 2. FIG. 4 is a flowchart illustrating the operation of the embodiment shown in FIG. S9: Auto underline setting means, S1
1: Auto underline reset means, S6, S
20, S24, S25: Auto underline control means.

Claims (1)

[Claims] 1. Data such as character data representing characters corresponding to characters input from a keyboard, line feed data, and tab data can be stored in a text memory, and the contents of the text memory can be transmitted to an external device. In the data transmitting device, an auto-underline setting means for underlining transmission data, a storage means for storing the auto-underline setting state, and an auto-underline clearing means for clearing the auto-underline setting state; When line feed data or tab data is read from the text memory in the auto underline set state, auto underline control means clears the auto underline set state of the transmitted data while space data related to that data is being transmitted. A data transmitting device comprising: