JPH03105657A - Data transfer device - Google Patents

Abstract

PURPOSE:To quickly execute the maximum data transfer by dividing and trans ferring the data by a data group unit of a range which does not exceeds the memory capacity of an external device, in the case the data quantity of a designated data train exceeds the memory capacity of the external device. CONSTITUTION:Character-string data of a delimiter unit stored in a character- string data storage part 13 of an electronic notebook 1 is transferred to a handy copy 5 within a range which does not exceed its memory capacity by a control part, and in the case the transfer remainder of the character-string data exists, a message display of 'the remaining data exists' is executed. Also, by operating a transmitting key, the transfer of the character-string data from the next partition is executed in the same way. In such a way, it does not occur that the character-string data of one clause is interrupted on the way of the transfer, and becomes immediately an error state due to shortage of the memory capacity, and by designating an arbitrary printing data range, the character-string data within its designated range can be transferred and printed surely and quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a data transfer device used, for example, when data is transferred from a main unit capable of holding data input to an external device having a memory.

[Prior art and its problems] For example, when data is transferred from an information device such as an electronic notebook that can manually store data to an external device with memory such as a small printer, the memory of the external device is If data transfer exceeds the capacity, a transfer error will occur, or only data equivalent to the memory capacity will be transferred.

However, if the above transfer error occurs, the data transfer range specification must be reset many times until the transfer error is no longer indicated, and if only the data equivalent to the memory capacity is transferred. For example, if the transfer data is divided into a plurality of pieces in advance, there will be problems such as the transfer process ending in the middle of the divided data.

[Objective of the Invention 1] The present invention has been made in view of the above-mentioned problems, and is capable of transmitting data to the maximum extent possible without causing inconveniences such as resetting the data transfer range or interruptions in the middle of divided data. The object of the present invention is to provide a data transfer device that can perform limited data transfer.

[Summary of the Invention] In other words, the data transfer device according to the present invention includes a storage means for storing a data string divided into arbitrary data groups, and a range specification for specifying an arbitrary range of the data string stored in the storage means. transfer instructing means for instructing the range specifying means to transfer the designated data string to an external device; comparison means for comparing the memory capacity of the external device with the data amount of the specified data string; and the comparing means and division transfer means for dividing and transmitting data groups within a range that does not exceed the memory capacity of the external device when the data amount of the specified data string exceeds the memory capacity of the external device. It is.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 shows the external configuration of the data transfer device. In the figure, 1 is an electronic notebook, and the front of the electronic notebook 1 has character input keys for hiragana, katakana, alphanumeric characters, etc. A key input section 2 and a display section 3 composed of a liquid crystal are provided. This electronic notebook 1 creates and organizes and stores data such as people's names, addresses, and activity plans, and
It is used by recalling and displaying the data as needed, and when printing data stored in this electronic notebook, in this embodiment,
A handy covey 5 is connected via a data transfer line 4.

Here, when inputting multiple types of character string data using the electronic notebook 1, input a stop code by operating the "stop" key 28 in the key manual section 2 each time each character string data is input. , to separate different string data.

This handy copy 5 is equipped with a reading section 6 having a reading width of 8 cm for reading an optical image at one end of the housing, and a printing section 7 for printing out image data stored in an internal memory at the other end. On the side of the
Communication mode (INPUT) and printing mode (PRINT)
A mode changeover switch 8 is provided for switching between the two modes, and an operation key 9 for starting a reading or printing operation is provided on the front side of the housing.

That is, the mode changeover switch 8 of the handy copy 5 is set to the reading/communication mode (INPUT),
Place the reading unit 6 in contact with the surface to be read of the document and press the operation key 9.
When the housing itself is moved in a predetermined direction while pressing , image information of the surface to be read corresponding to the locus of movement of the housing is optically read as image data and stored in the internal memory.

In addition, when the reading/communication mode is set above,
When data is transferred from the electronic notebook 1 via the data transfer line 4, this transferred data is stored in the internal memory as image data.

In this case, if the amount of individual character string data separated by the above stop code is small compared to the memory capacity of the internal memory of Handycobee 5, the character string data that can be transferred within the memory capacity is sequentially transferred. transferred and also
If the amount of character string data delimited by stop codes is large compared to the memory capacity of the internal memory mentioned above, the transferable tail part of the character string data corresponding to the memory capacity is displayed, and the following The beginning of data that cannot be transferred is indicated by a cursor.

Then, when the mode changeover switch 8 of the handy copy 5 is set to the print mode (PR I NT), the printing section 7 is brought into contact with the recording paper surface, and the housing itself is moved in a predetermined direction while pressing the operation key 9. The image data transferred and stored in the internal memory is sequentially printed out on a recording paper surface corresponding to the movement locus of the housing.

Here, the maximum printing length (Max) corresponding to the memory capacity of the internal memory in the printing section 7 is 180III1
Also, the number of characters in the character string data N, the number of dots per character (standard number of dots x specified double-width) s, the number of dots between characters K,
Assuming that the printing resolution is 8 dots/■, the printing length LC is determined by the following equation 1.

LC-(SxN+Kx (N-1)l/8 (+u+)
=Formula 1 In other words, the maximum print length M a x m 1 8
The number of characters that can be printed at 0 s-, that is, the number of characters J that can be stored in the internal memory of the handy copy 5, is determined by the following equation 2.

J-((180X8-K)/(S+K))...Equation 2 Figure 2 shows the configuration of the electronic circuit in the data transfer device with the above configuration, and in the figure, 11 is the electronic notebook 1.
This control unit 11 controls the operation of each part of the circuit in response to a key manual operation signal from the key manual unit 2.

The control unit 11 includes an arithmetic unit 12 for performing arithmetic processing according to the key manual operation in the key human power unit 2 and arithmetic processing based on the former formula 1 and formula 2, as well as a character string created manually by the key. A character string data storage unit 13 that stores data together with its delimiter stop code, a code determination unit 14 that determines whether or not the stop code is read by the control unit 11, a display unit that displays character string data entered manually and its transfer data together with a cursor. A display control unit 15 for displaying information on the display panel 3 is connected to the display controller 15.

On the other hand, in the address and data path between the control section 11 and the character string data storage section 13, there is a register 1 in parallel.
6 is connected. This register 16 is a register that stores a range specified start address n and end address m in the character string data storage unit 13 for data transfer from the electronic notebook 1 to the handy copy 5, and a transfer start temporary pointer T.
A register as the PS and end temporary pointer TPE, a register that stores the end flag EF of the specified transfer printing range, a register that stores the printing length LC of the first character string data, a register that stores the maximum printing length Max of the first period, and Each register is provided as a character counter for counting and storing the number N of characters of character string data.

Further, a data transmitting/receiving section 17 is interposed between the control section 11 and a data transfer output terminal for the handy copy 5.

Furthermore, in FIG. 2, 21 is a control section of the handy copy 5, and this control section 21 includes a printing section 7, a memory 22 for storing character string data transferred from the electronic notebook 1, and a memory 22 for storing character string data transferred from the electronic notebook 1. A data transmitting/receiving section 23 that receives transferred data from the electronic notebook 1 and an encoder 24 that detects the amount of scanning movement of the HandyCobby 5 on the recording paper are connected.

In other words, set the mode changeover switch 8 of the handy copy 5 to the print mode (PRINT), bring the printing section 7 into contact with the recording paper surface, and move the housing itself in a predetermined direction while pressing the operation key 9. Then, image data such as character string data transferred and stored in the memory 22 is sequentially read out and printed out on a recording paper surface corresponding to the movement locus of the housing according to the scanning movement amount detected by the encoder 24. Ru.

Next, the operation of the data transfer device having the above structure will be explained.

First, when a plurality of types of character string data are created using the key manual section 2 of the electronic notebook 1, the individual character string data are sequentially written and stored in the character string data storage section 13.

Here, in order to print each character string data stored in the character string data storage section 13 using the handy copy 5,
First, desired character string data to be printed is sent from the electronic notebook 1 to the Handycobee 5 and stored in the memory 22.

FIG. 3 is a flowchart showing the printing and transmission processing of character string data in the electronic notebook 1. First, character string data stored in advance in the character string data storage section 13 is sent to the control section
The character string data is displayed on the display section 3 through the display control section 15, and a desired printing range of the character string data is designated. Then, the start address n and the end address m of the character string data in the character string data storage unit 13 corresponding to this printing designated range are stored in the register 16, respectively (step Sl).
. Here, register areas other than the n and m areas in the register 16 are initialized (step S2). Then, the print start temporary pointer TPS in the register 16
The range specified start address n of the character string data storage section 13 is stored in , and the printing end temporary pointer TPH is stored in .
, the n-1 address is stored (steps S3, S4).

At step S5, the address value stored in register n is compared with the final address value of the designated print range stored in register m. In step S5, rNoJ, that is, register n is When it is determined that the stored address value has not reached the final address value m of the specified print range, one character of the specified character string data is read from the character string data storage section 13 ( Step S6). At this time, the code determination unit 14 determines whether the data read from the character string data storage unit 13 is a stop code (step S7). If it is determined in this step S7 that rNoJ, that is, the data read from the character string data storage section 13 is not a stop code, and that the final data of one section of character string data has not been reached, the register n The address value stored in is incremented by 1 (step S8).

Thereafter, the judgments and processes in steps 85 to S8 are repeated, and the character string data within the designated print range is read out one character at a time from the character string data storage section 13, for example, one section of character string data is read out. , when the code determination unit 14 determines that the stop code is read, step S
7 is determined to be "Yes", and the print length LC of the character string data in which one line corresponds to one line is calculated in the arithmetic unit 12 based on Equation 1 and stored in the register 16 (step SIO.7). Sll).

Then, the process proceeds to step S12, where it is determined whether the one-line print length of the character string data stored in the register LC is longer than the maximum print length Max corresponding to the internal memory capacity of the handy copy 5. So, this step S12
If the answer is "NO", that is, if it is determined that there is still room in the memory capacity of the HandyCobby 5, the final address n of the character string data for one segment read above is set to the print end temporary pointer TPH. It is determined whether the end flag EF is '1' (step 8
12-S14).

In this case, the reading process of the character string data reaches the final address value m of the specified printing range and is not 0, so the end flag EF is "0", and it is determined "NO" in step S14, and the above step The process returns to the judgment and processing in steps 85 to S8.

Here, the next character string data is read out, and after it is determined as rYesJ in step S7, its one-line print length is calculated in step S10, and in step S11, the previously calculated one-line cut length/length LC is used. The added total print length LC is stored in the register 16. At this time, the answer in step S12 is "Yes", that is, the register LC
The total print length of the character string data stored in is the maximum print length Ma corresponding to the internal memory capacity of the day copy 5.
If it is determined that the length is longer than X, and that it is possible to transfer and write only up to one segment of character string data that was read last time into the memory 22, the process advances to step S15, and whether the print start temporary pointer TPS is larger than the print end temporary pointer TPE or not. It is determined whether or not. In this case, the print start temporary pointer TPS
corresponds to the start address n of the specified printing range in the character string data storage unit 13 through the processing in step S3 in the previous period, and the print end temporary pointer TPE corresponds to the address 1 read last time in the processing in step S3 in the previous period. Since this corresponds to the final address n of the character string data for the delimiter, it is determined "NO" in step S15, and the TPS-T
The character string data based on the printing start to end pointers up to the PE is converted into an image as print data, and transmitted and transferred from the control section 11 to the handy copy 5 side via the data transmission/reception section 17 (steps S16, S17). As a result, the above-mentioned electronic notebook 1 is stored in the memory 22 of the handy copy 5.
The character string data in delimited units stored in the character string data storage section 13 has been transferred and written within the range that does not exceed the memory capacity, and the state is now ready for printing through the printing section 7. .

In this way, after the data transfer process from the electronic notebook 1 side to the handy copy 5 is performed, the data transfer process from the electronic notebook 1 side to the handy copy 5 is completed.
To print the above character string data, first select the print mode (PR I N
T) and move the copy machine main body while pressing -9 so that the printing section 7 comes into contact with the recording paper. Then, based on the encoder pulses output from the encoder 24, a process of reading character string data from the memory 22 and a process of printing the data on the recording paper are executed.

After this, the process advances to step 318, and the end flag EF is set to “
11 is determined. In this case, the read and transfer process of character string data has only been carried out for one segment of character string data in the previous period, and the final address value m of the specified print range has not been reached. The end flag EF is "0", that is, in step S18, "
The control unit 11 causes the display unit 3 to display a message “Remaining data” through the display control unit 15 (step S19). At this time, if a key other than the transmission key is manually operated in the key manually operated section 2, the control section 11 executes processing according to the key manually operated signal (steps S20 to S22).

On the other hand, when the transmission key in the key manual section 2 is operated to transmit and transfer the remaining character string data in the specified range for printing in the first period, in step 521,
sJ, and the current printing end temporary pointer TPE,
That is, the start address of the next character string data, which is added by 1 to the last address of the character string data that was transmitted and transferred last time, is stored in register n (step S23). Then, the start address n of the next character string data is stored in the print start temporary pointer TPS in the register 16, and the above n-1 is stored in the print end temporary pointer TPH.
The address is stored (steps S3, S4).

Thereafter, the judgments and processes in steps 85 to S8 are repeated, and the next character string data is sequentially read character by character from the character string data storage section 13, and the address value stored in register n is the final address g of the specified printing range. [When reaching m, "YesJ" is determined in step S5, and "12" is set in the end flag EF stored in the register 16 (step S9). Then, the print length LC of the character string data read up to the final address m of the specified print range
is calculated in the arithmetic unit 12 based on Equation 1 and stored in the register 16 (step 510, SIX).

Then, the process advances to step S12, and the one-line print length of the character string data stored in the register LC is determined to be the maximum print length Max corresponding to the internal memory capacity of the handy copy 5.
It is determined whether the length is longer than the
12, if it is determined that the character string data of the print length LC can be written to the memory 22 of the HandyCobby 5 sufficiently in terms of its capacity, the above-mentioned information is sent to the print end temporary pointer TPH. The final address n of the character string data read out is given, and it is determined whether the end flag EF is "1°" (steps S12 to S
14).

In this case, the reading process of the character string data has reached the final address value m of the specified print range, so the end flag EF is "1#" in the process in step s9, and it is determined as rYesJ in step S14. .Then, the process advances to step S15, where the print start temporary pointer T
It is determined whether PS is larger than the printing end temporary pointer TPE. In this case, the printing start temporary pointer TPS corresponds to the start address n of the transferred character string data as a result of the processing in step S3 in the previous period, and the printing end temporary pointer TPE is read out this time as a result of the processing in step S13 in the previous period. Since this corresponds to the final address n of the character string data, it is judged as rNoJ in step S15, and the character string data based on the print start to end pointers from TPS to TPE is converted into an image as print data, and is sent from the control unit l1. The data is transmitted and transferred to the /X Ndikobee 5 side via the data transmitter/receiver 17 (steps 816, 517).
. As a result, all of the character string data in the delimiter unit following the character string data transferred last time has been transferred and written to the memory 22 of the Handycobee 5, within a range that does not exceed the memory capacity of the previous time. Similarly, the state becomes possible for printing through the printing section 7.

After that, the process advances to step S18, and the end flag EF is set to ``
1". In this case, the character string data read and transfer process is performed for all character string data, and the final address value m of the specified print range has been reached, so the above end flag is EF is determined to be "12" by the process in step S9, that is, "YesJ" is output in step S18, and the above series of character string data transmission and transfer processing is completed.

That is, the character string data in delimited units stored in the character string data storage section 13 of the electronic notebook 1 is transferred to the Handycobee 5 within a range that does not exceed its memory capacity,
If there is any remaining character string data to be transferred, a message “Remaining data available” will be displayed, and by operating the send key, you can transfer character string data from the next category in the same way. An error state does not occur immediately due to character string data being interrupted during transfer or insufficient memory capacity.

On the other hand, in the judgment and processing of steps 85 to S8,
When the character string data for one section has been read out, the print length LC is longer than the maximum print length M a x corresponding to the internal memory capacity of the handy copy 5, and the memory 22 stores the characters for this one section. If it is determined that the column data cannot be transferred and written all at once, the process proceeds to step S15, where the print start temporary pointer TPS changes to the print end temporary pointer TPE.
It is determined whether the In this case, the print start temporary pointer TPS corresponds to the start address n of the character string data for one section, as determined by the process in step S3 of the previous period, and the print end temporary pointer TPE corresponds to the start address n of the character string data for one section, as determined by the process in step S4 of the previous period. , corresponds to -1 of the start address n, so the determination in step S15 is "YesJ", and the process of displaying the transferable data area and non-transferable data area by cursor instruction in steps S24 to S26 is executed. .

First, in step S24, the memory address in the character string data storage unit 13 corresponding to the maximum print length M a x corresponding to the memory capacity of the HandyCobby 5 is determined based on the number of storable characters J calculated by Equation 2. , the first address n of character string data that cannot be transferred or written is calculated by adding 1 to this memory address. and,
The cursor pointer 15a in the display control unit 15 is set corresponding to the first memory address n of the character string data that cannot be transferred or written (step S25). Then, the transferable data area and the non-transferable data area are displayed on the display unit 3 with the cursor indicating the beginning position of the character string data where writing to the memory 22 is interrupted ( Step S26).

Therefore, according to the data transfer device having the above configuration, the character string data in delimited units stored in the character string data storage section 13 of the electronic notebook 1 is transferred to the HandyCobby 5 within the range of the memory capacity thereof. If there is character string data remaining to be transferred, a message saying "Remaining data available" will be displayed, and character string data from the next category can be transferred in the same way by operating the send key. An error condition does not occur immediately due to a passage of character string data being interrupted during transfer or insufficient memory capacity, and by specifying an arbitrary print data range, character string data within that specified range is transferred reliably and quickly. and print it.

[Effects of the Invention] As described above, according to the present invention, there is a storage means for storing a data string divided into arbitrary data groups, and a range specification for specifying an arbitrary range of the data string stored in this storage means. transfer instructing means for instructing the range specifying means to transfer the designated data string to an external device; comparison means for comparing the memory capacity of the external device with the data amount of the specified data string; and the comparing means In this case, when the amount of data of the specified data string exceeds the memory capacity of the external device, the device is configured to include a division transfer means for dividing and transferring data groups within a range that does not exceed the memory capacity of the external device. Therefore, it is possible to provide a data transfer device that can perform maximum data transfer without resetting the data transfer range or causing problems such as interruptions in the middle of divided data.

[Brief explanation of drawings]

FIG. 1 is an external view showing an electronic notebook and Handycoby of a data transfer device according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the electronic circuit in the electronic notebook and Handycoby, and FIG. 3 is a flowchart showing print transmission processing between the electronic notebook and the handy copy. DESCRIPTION OF SYMBOLS 1...Electronic notebook, 2...Key manual section, 2a...Stop key 3...Display section, 4...Data transfer line, 5.
...Handycoby 6...Reading section, 7...Print section, 8...Mode switching key 9...Operation key 11...Electronic notebook control section, 12...Calculating section, 13
...Character string data storage unit, 14...Code judgment unit,
15...Display control unit, 15g...Cursor pointer, 16...Register, l7...Electronic notebook data transmission/reception unit, 21.../X day covey control unit, 22...
Memory, 23... Handycoby data transmission/reception section, 2
4...Encoder.

Claims (1)

[Scope of Claims] Storage means for storing a data string divided into arbitrary data groups; Range specification means for specifying an arbitrary range of the data string stored in the storage means; Specification by the range specification means. a transfer instruction means for instructing the transfer of the data string to an external device; a comparison means for comparing the memory capacity of the external device with the data amount of the specified data string; 1. A data transfer device comprising: division transfer means for dividing and transferring data in units of data groups within a range that does not exceed the memory capacity of the external device when the memory capacity of the external device is exceeded.