JPH10304087A - Data transmitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data transmitting device which converts the data to be transmitted in a message into the least necessary number of code strings according to the character species and can shorten the data transmission time. SOLUTION: A conversion matrix ROM 10 stores a 1st matrix to convert a prescribed number of character data into the free word code strings of two digits, and a conversion ROM 16 stores a 2nd matrix to convert a number of character data larger than the prescribed number into the code strings of four digits. A key input part 6 instructs the transmission of these character data strings, and a detection part 17 detects only the character data strings that can be converted by the 2nd conversion matrix only among those designated data strings. A control part 3 converts the detected character data into the code strings of four digits via the 2nd conversion matrix and also converts the non-detected data into the code strings or two digits via the 1st conversion matrix respectively to obtain the transmitting code strings. A transmitting buffer 13 outputs the obtained transmitting code strings to a D/A conversion part 19. Then the part 19 outputs the coded data sent from the buffer 13 via a loudspeaker 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transmission device having a transmission function capable of transmitting a dial signal, for example.

[0002]

2. Description of the Related Art Conventionally, there is a so-called paging receiver with a dial signal transmission function, which is integrated with a paging receiver and further has a transmission function using a dial signal. In recent years, message data having a relatively large data amount has been handled. With the spread of the paging service that allows for the transmission of message data, a paging receiver with a dial signal transmission function with an enhanced function of transmitting message data has appeared.

On the other hand, for example, data having different attributes such as schedule data indicating a user's own action schedule and address book data including a plurality of personal data including names and telephone numbers are input and stored. Some electronic organizers, which are displayed as required, have a transmission function using an infrared signal.

[0004]

Therefore, the function as an electronic organizer as described above and the function as a paging receiver with a dial signal transmission function are integrated, so that not only message data but also schedule data and address book are obtained. If data such as data can be transmitted and received, the paging receiver can be made more convenient as communication means.

However, the data belonging to the paging reception function such as the message data and the data belonging to the electronic organizer function such as the schedule data and the address book data have different character types (character data). For example, when kanji is used in schedule data, whether or not this schedule data can be dial-transmitted as message data as it is depends on whether the paging receiver of the data transmission destination is an IP (information pager) capable of displaying kanji. Or an NP (numerical pager) that displays only kana messages with a two-digit numeric code by dial input.

In this case, if the type of the paging receiver of the data transmission destination is IP, message data including kanji can be freely transmitted, while kana characters and numerals which can be converted into a two-digit number code can be used. Is required to be transmitted using a four-digit code as in the case of Chinese characters, so that there is a problem that the transmission time is unnecessarily long depending on the character data used for the message data.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to minimize the necessary number of code strings according to the character type (character data) used in message data to be transmitted. It is an object of the present invention to provide a data transmission device which converts the data into a data and transmits the data efficiently.

[0008]

According to the first aspect of the present invention,
Display means for displaying a character data string, and a first means for converting the character data into a predetermined two-digit code string
Conversion means for converting character data which cannot be converted by the first conversion means into a code string having three or more digits, and transmitting the character data string displayed on the display means. Instructing means for instructing, character detecting means for detecting character data which can be converted only by the second converting means from the character data string instructed to be transmitted by the instructing means; Creating means for converting a character string not detected by the detecting means into a two-digit code string according to the first converting means while converting the character data not detected by the detecting means into a two-digit code string according to the converting means And a transmitting means for transmitting the code string generated by the generating means.

[0009] With this configuration, it is possible to convert the message data into a minimum necessary code string according to the character type (character data) used in the message data to be transmitted and to transmit the same in a short time. .

[0010] According to a second aspect of the present invention, in the first aspect of the invention, the creating means converts the code string converted by the first converting means and the code string converted by the second converting means. At the time of connection, an identification code for identifying these code strings is inserted.

With this configuration, in addition to the operation of the first aspect of the present invention, it is possible to smoothly and reliably connect the code strings converted by the different conversion matrices.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a paging receiver with a dial signal transmission function will be described below with reference to the drawings. FIG. 1 shows a circuit configuration provided in a paging receiver to which the present invention is applied, and a radio signal for calling the paging receiver conforms to an advanced radio paging system (RCR STD-43 standard). Then, it is received by the antenna 1 and sent to the reception processing unit 2. The reception processing unit 2 detects and demodulates reception data received by the antenna 1 into binary or quaternary digital data. When the power-on is detected, the control unit 3 connected via the bus B Is driven continuously until a synchronization signal is received within a predetermined time, and upon receiving the synchronization signal, a control unit which takes in the frame number in the synchronization signal and the frame number data of the ID-ROM 4 3 is driven intermittently so as to be able to receive its own frame based on the control signal from the control signal 3

The signal demodulated by the reception processing unit 2 is
When the signal is converted to bit parallel data and sent to the control unit 3, and a signal for determining that the address data in the address field received from the control unit 3 matches the address data of the ID code set in the own device is input. Then, the vector field and the message field which are received subsequently are fetched, converted into 8-bit parallel data, and transmitted to the bus B.

The control unit 3 includes an Ir transmission / reception unit 5, a key input unit 6, a display unit 7, a ROM 8, a character generator 9, Direct code conversion matrix ROM 10, RAM 11, notification unit 12, transmission buffer 13, buffer memory 14, deinterleave circuit 1
5, # + 4-digit number code conversion ROM 16, ROM 17 connected to detection unit 17 and interface (I / F) 18.
In accordance with an operation program fixedly stored in the reception processing section 2 and a control operation of the entire circuit.

The Ir transmission / reception unit 5 is provided with a light emitting unit and a light receiving unit for directly transmitting and receiving various data and the like by infrared signals. It has a function of converting the displayed data of each mode into an infrared signal and transmitting and outputting the infrared signal from the light emitting unit, and receiving an external infrared signal.

The key input unit 6 includes a menu key 6a, a cursor key 6b, an execution key 6c, a dial key 6d, and a sheet key 6e. The menu key 6a is a key for shifting to menu display in all modes.

The cursor key 6b is a key for instructing movement of a cursor displayed at the time of displaying a menu and each mode in each of up, down, left, and right directions. Is a key for instructing the display of the data displayed on the screen or the next data.

The dial key 6d is used to hold DTMF (Dual Tone Multi Freq) of message data.
key for instructing the start of transmission of a signal (or a dial tone) signal, or for instructing the start of transmission of an infrared signal of message data from the Ir transmission / reception unit 4, which will be described later. Is the key to

The sheet key 6e is, for example, a QWERT
A keyboard with a Y layout is processed into a sheet shape and a contact pattern in the form of a matrix is provided directly below the keyboard. Input instructions are enabled.

The display section 7 is composed of a dot matrix type liquid crystal display panel. The ROM 8 stores the control unit 3
Stores a program necessary for controlling the operation of each peripheral circuit. The character generator 9 permanently stores character pattern data of characters to be displayed on the display unit 7.

Free direct code conversion matrix R
The OM 10 is a table that stores a conversion code string for creating free direct type (RCR STD-43 standard) message data as shown in FIG.
Here, a two-digit numerical value can be read out in association with character data such as katakana, alphabets, numbers, and symbols. For example, a code string is used for the character data of the character "G" in the message data. "2
7 "can be obtained.

The RAM 11 stores the received message data as shown in FIG.
M, a transmission message memory TM for storing message data to be created and transmitted, a memo pad data memory MM for storing memo pad data, an address book data memory ADM for storing address book data, and a To-Do storage for To-Do data. It has a memory area for a data memory TOM and a schedule data memory SDM for storing schedule data.

Of these, a memo pad data memory MM, an address book data memory ADM, a To-Do data memory T
The OM and the schedule data memory SDM are used as memory areas of various modes (memo pad mode, address book mode, To-Do mode, schedule mode) provided in the paging receiver. Details will be described later.

Further, as shown in FIG. 4, the memo pad data memory MM stores a plurality of sets of memo data in which one set of memo pad data having a title added to display data contents freely inputted. .

The notification unit 12 includes a small speaker, a vibrator, and the like separate from the speaker 20, and drives the small speaker and the vibrator based on a control signal from the control unit 3 while receiving a call, and The calling state is notified by sounding, vibration and the like.

The transmission buffer 13 buffers the call number data in the address book memory ADM sent from the control unit 3 and the data stored in the RAM 11 only when a transmission instruction is issued. / A conversion unit 19.

The D / A converter 19 sequentially converts the coded data sent from the transmission buffer 13 into a DTMF signal into an analog signal, amplifies the DTMF signal, and causes the loudspeaker 20 to output the amplified signal.

The deinterleave circuit 15 includes the control unit 3
Under the control of, the interleaving process performed on the reception data of the digital value converted into 8-bit parallel data by the reception processing unit 2 is canceled and the process returns to the original parallel data array.

The buffer memory 14 includes the reception processing unit 2
The received data directly sent from the buffer is stored in the buffer and supplied to the deinterleave circuit 15, and is also used as a work area of the control unit 3 for error correction processing of the deinterleaved received data and address collation. Is done.

The # + 4-digit numeric code conversion ROM 16 is a ROM that stores a matrix for converting character data such as kanji characters that cannot be converted by the free direct type into # + 4-digit numeric codes. +
This is a ROM that stores a numeric code in two bytes called a shift JIS code and associates a kanji character with a code designating one character.

When the dial key 6 d is operated on the key input unit 6, the detecting unit 17 outputs the character data output to the message data displayed on the display unit 7 and cannot be converted by the free direct type. The data is detected and the detection result is sent to the control unit 3.

The interface 18 is connected, for example, via a connector 21 disposed on the side of the paging receiver.
This is for directly transmitting and receiving data to and from another electronic device such as an electronic notebook connected to the line.

Next, the control operation of the control unit 3 when the transmission of the memo data specified in the memo pad mode in the above embodiment will be described. 5 and 6 mainly exemplify an operation in which the control unit 3 shifts to the memo pad mode after the power is turned on, and immediately after the power is turned on, the control unit 3 is fixedly stored in the ID-ROM 4 as an initial setting. The content of the address data is recognized, and the recognition result is stored and set in the internal register.

The control section 3 drives the reception processing section 2 continuously until the synchronization signal is received within the predetermined time immediately after the power is turned on as described above, and when the synchronization signal is received, the ID-R
The reception processing unit 2 is intermittently driven in accordance with the frame data read from the OM 4, waits for an incoming call waiting for the frame and address of the own device to be called, and displays a mode menu screen on the display unit 7 ( Step S
1).

FIG. 7 shows an example of a mode menu screen displayed on the display unit 2 at this time. In the figure, an "inbox mode" for displaying incoming message data, and message data to be transmitted are created. "Outbox mode" to send and receive messages to and from a specific person (one or more people), "group mode" to manage the file exchange of messages,
"Schedule mode" mode for entering and storing / managing schedule data includes "Calendar mode" for displaying calendars one month at a time, call number and address, type of paging receiver, etc. "Address book mode" for storing and managing, "Note book mode" for displaying memorandums and creating message data, which are highlighted in this case, and for storing them in the RAM 11, "To-Do mode" for entering and registering, functions as a world clock,
A “world (time) mode” for displaying the current date and time, and an “environment setting” mode for setting the environment of the paging receiver are displayed.

In the state where the mode menu screen is displayed, it is determined whether or not the memo pad mode is selected (step S2). The mode other than the memo pad mode includes the cursor key 6b and the execution key. If the character is selected by the operation of FIG. 6c, the processing operation corresponding to that mode is executed (step S4), but the memo pad mode is selected and the character is highlighted by the menu cursor MC as shown in the figure. When the execution key 6c is operated by the user, it is determined that the memo pad mode has been selected, and the RAM 1
The memo pad data registered in the first memo pad data memory MM is searched, and the number of registered memo pad data is displayed on the display unit 7 instead of the mode menu screen (step S3).

FIG. 8 illustrates a display screen on the display unit 7 at this time. Since three memo data are registered in the memo pad data memory MM of the RAM 11 as shown in FIG. A message "memo?" Is displayed as a guide message so as to display that the number of registrations is "3" and prompt the user to select whether to input memo pad data by newly operating the sheet key 6e. Is displayed at the bottom line.

When the cursor key 6b is operated to select the memo data already registered for such a display, the title name of the memo pad data is read out from the memo pad data memory MM of the RAM 11, and the list is displayed on the display unit 7. Is displayed and the title name is selected (step S
4). In this case, the head of the memo data is the cursor C as the currently selected memo pad data.
The cursor C is moved by operating the cursor key 6b as necessary.

FIG. 9 shows a list of title names of the memo pad data, and shows a state where the third memo data having the title name “item check” is selected by the cursor C.

With the title name selected in this way, the data sender operating the paging receiver is:
First, in order to specify the destination of the memo pad data, the calling number of the paging receiver of the data destination was input to the nearest public telephone (not shown), and a response announcement such as "Please insert a message." Then, whether or not the dial key 6d is pressed by the data sender,
Alternatively, by continuously judging whether or not the execution key 6c has been pressed, these key operations are on standby (steps S6 and S7).

When the operation of the menu key 6a is detected, the process returns to the step S3 and shifts to the display state of the number of registered items. If it is determined in step S7 that the execution key 6c has been pressed, the key operation for confirming the contents of the memo pad data of the selected title is determined to be a key operation for confirming the contents of the memo pad data memory of the RAM 11. The entire contents of the corresponding display data are read from the MM and displayed on the display unit 7 together with the title name (step S8).

FIG. 10 shows an example of a data display state when the execution key 6c is operated from the display state shown in FIG. 9, and the display data contents are "word processor", "electronic notebook", and "TFT liquid crystal television". Is displayed together with the title "Item Check", and in particular, shows a state where "TFT liquid crystal television" at the end of the display data content is selected by the cursor C.

After the display for confirming the contents of the memo data is performed in this manner, if necessary, any message data to be transmitted is selected from the memo pad data of the displayed contents by operating the cursor key 6c. (Step S9), and then wait for the dial key 6d to be pressed (step S10).

If the operation of the menu key 6a is detected without pressing the dial key 6d, the process returns to step S8 to read out the entire contents of the corresponding display data and display it together with the title name on the display unit 7. I do.

Then, in step C10, dial key 6
When it is determined that d has been pressed, character data used in the selected memo pad data is searched one by one from the top, and conversion to free direct code is performed using the free direct code conversion matrix ROM 10. (Step S11).

If the character data retrieved from the selected memo pad data is character data that cannot be converted by the free direct code conversion matrix ROM 10 shown in FIG. 17 (step S1).
2) The detected character data is converted into a # + 4-digit numeric code using the # + 4-digit numeric code conversion ROM 16 and a code "* 8" for terminating the free direct code is inserted at the beginning of the converted data. To obtain a code string (step S13).

Subsequently, it is determined whether the next character data in the memo pad data is character data that can be converted by the free direct code conversion matrix ROM 10 (step S14), and the character data can be converted. If it is character data, a free direct start code "* 2 * 2" is inserted before the next character data is converted into a two-digit free direct code string (step S15).

In step S14, the next character data is stored in the free direct code conversion matrix RO.
If it is determined that the character data cannot be converted by the M10, the next character data is continued as it is by using the # + 4-digit number code conversion ROM 16 as #.
It is converted into a +4 digit numeric code string (step S16).

After the processing in step S15 or S16, it is determined whether or not the conversion of all data has been completed based on whether or not there is character data to be further converted (step S17). If it is determined that the processing has not been completed, the processing from step S1 is repeated again.

The individual character data used in the memo pad data which cannot be converted to the free direct code is a # + 4-digit numeric code conversion ROM.
For those that can be converted to a # + 4-digit number code string using 16 and a free direct code, the free direct start code and the same end code are respectively inserted into the 2-digit free direct code string using the free direct code conversion matrix ROM10. While converting.

When it is determined in step S17 that the conversion of all the character data of the memo pad data has been completed, an end signal "#" is inserted at the end of the converted code string, and all the converted codes are converted. Send buffer 2
1 is temporarily stored (step S18).

FIG. 12 shows a state in which “TFT liquid crystal television” in the memo pad data of the title “item check” shown in FIG.
This example illustrates a case in which individual character data is converted into a free direct code string and a # + 4-digit number code string in order to transmit the "TFT liquid crystal television" as a message.

In this case, all three leading character data "T", "F", and "T" can be converted into a free direct code string, and therefore, following the free direct start code "* 2 * 2", It is converted to "402640" based on the free direct code conversion matrix ROM 10 shown in FIG.

Since the character data of the following “liquid” is a kanji character and cannot be converted into a free direct code string, after the free direct end code “* 8” is inserted, the character data of the “liquid” is added. # + 4 based on the corresponding # + 4-digit numeric code conversion ROM 16
A character code string of digits is arranged, and the character data of “crystal” following the above-mentioned # also corresponds to the character data.
A +4 digit numeric code sequence based on the +4 digit numeric code conversion ROM 16 is provided.

The subsequent four character data "te", "re", "hi", and "@" can be converted into a free direct code string, and therefore, following the free direct start code "* 2 * 2". Is converted to "44946204" based on the free direct code conversion matrix ROM 10 shown in FIG. 4, and after the free direct end code "* 8" is inserted, the code string "#" of the end signal is additionally inserted. Different.

If it is determined in step S6 that the dial key 6d is directly pressed while the title name is selected, the entire memo pad data of the selected title name is stored in the memo pad data memory MM. (Step S20), and performs the conversion processing of step S11 and subsequent steps.

FIG. 13 shows a case where the third keypad data having the title "item check" is selected by the cursor C as shown in FIG. This example illustrates a case where individual character data is converted into a 2-digit free direct code string and a # + 4-digit numeric code string in order to transmit the entire book data.

In this case, the first five character data "A", "A", "T", "M", and "H" can be converted into a free direct code string, and the free direct start code "* 2 *" 2 ", the free direct code conversion matrix ROM 1 shown in FIG.
8 is converted to “1112447342”.

The following two character data "e" and "tsu"
Is a kana lowercase letter and cannot be converted to a free direct code string. After the free direct end code "* 8" is inserted, the above # + 4 digits corresponding to the character data of "e" and "tsu" Numeric code conversion RO
Each # + 4-digit number code string based on M16 is arranged.

Then, the following character data "K" can be converted into a free direct code string,
Following the free direct start code "* 2 * 2", it is converted to "23" based on the free direct code conversion matrix ROM 18 shown in FIG.

Further, since the character data of the next line feed cannot be converted into a free direct code string, after the free direct end code "* 8" is inserted, the # + corresponding to the character data of this line feed is inserted.
A # + 4-digit numeric code sequence based on the 4-digit numeric code conversion matrix ROM 25 is arranged, and the following five character data "W", "-", "F", "゜", and "B" are all converted to a free direct code sequence. Can be converted,
Following the free direct start code "* 2 * 2", it is converted to "0169630595" based on the free direct code conversion matrix ROM 18 shown in FIG.

Since the character data of the subsequent line feed cannot be converted into a free direct code string, after the free direct end code "* 8" is inserted, the above-described # + 4 corresponding to the character data of the line feed is inserted.
Since each digit code string of # + 4 digits based on the digit / numerical code conversion ROM 16 is arranged, and the respective character data of the following "den", "child", "hand", and "book" cannot be converted to the free direct code string. After the free direct end code "* 8" is inserted, the "den", "child" and "hand"
A # + 4-digit numeric code sequence based on the above-described # + 4-digit numeric code conversion ROM 16 corresponding to each character data of "book" is arranged. A 2-digit free direct code sequence and # It is converted into a +4 digit numeric code string.

However, after temporarily storing the memo pad data converted to the character data code string in step S18 in the transmission buffer 13, these code strings are sequentially stored in the D / D buffer.
This is converted into a DTMF data signal by the A conversion unit 19, output from the speaker 20, and transmitted from the transmitter of the public telephone in contact with the speaker 8 (step S1).
9) This ends the series of processes.

FIG. 11 exemplifies a display state on the display unit 7 at this time. The current date and time are displayed on the uppermost line of the display unit 2, for example, "'96 .11.27 12:58".
And the remaining number of seconds SN required for data transmission is displayed as, for example, "38 seconds".

In the above-described embodiment, the case where the present invention is applied to a paging receiver having a dial data transmission function has been described as an example. However, the present invention is not limited to this. Of course, it can be applied to various electronic devices that transmit wireless signals.
The present invention can also be applied to a complex portable terminal such as an electronic organizer that can connect to a digital portable telephone and transmit and receive data.

Further, in the above-described embodiment,
Although the present invention is limited to the paging receiver with the dial transmission function, the invention is not limited to this, and the present invention is also applicable to a computer with a transmission function for transmitting data by infrared rays. In addition, the present invention can be variously modified and implemented without departing from the gist thereof.

[0067]

According to the first aspect of the present invention, according to the character type (character data) used for the message data to be transmitted, it is converted into a minimum necessary code string and transmitted within a short time. be able to.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to smoothly and reliably connect the code strings converted by the different conversion matrices.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a circuit configuration of a paging receiver with a dial signal transmission function according to an embodiment of the present invention.

FIG. 2 is a diagram showing a conversion matrix of a free direct code conversion matrix ROM 10 of FIG.

FIG. 3 is a diagram showing a memory area configuration of a RAM 11 of FIG. 1;

FIG. 4 is a diagram exemplifying storage contents of a memo data memory MM of FIG. 3;

FIG. 5 is an exemplary flowchart showing transmission processing contents in a memo pad mode according to the embodiment;

FIG. 6 is an exemplary flowchart showing transmission processing contents in a memo pad mode according to the embodiment;

FIG. 7 is an exemplary view showing a display screen at the time of transmission in the memo pad mode according to the embodiment;

FIG. 8 is an exemplary view showing a display screen at the time of transmission in the memo pad mode according to the embodiment;

FIG. 9 is an exemplary view showing a display screen at the time of transmission in the memo pad mode according to the embodiment;

FIG. 10 is an exemplary view showing a display screen at the time of transmission in the memo pad mode according to the embodiment;

FIG. 11 is an exemplary view showing a display screen at the time of transmission in the memo pad mode according to the embodiment;

FIG. 12 is an exemplary view showing an example of a state of converting a transmission message into a code string in the memo pad mode according to the embodiment;

FIG. 13 is an exemplary view showing an example of a state of converting a transmission message into a code string in the memo pad mode according to the embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Antenna 2 ... Reception processing part 3 ... Control part 4 ... ID-ROM 5 ... Ir transmitting / receiving part 6 ... Key input part 7 ... Display part 8 ... ROM 9 ... Character generator 10 ... Free direct code conversion matrix ROM 11 ... RAM 12 ... Notification unit 13... Transmission buffer 14... Buffer memory 15. Memory TM: Transmission message memory MM: Memo pad data memory ADM: Address book data memory OM: To-Do data memory SDM: Schedule data memory

Claims (2)

[Claims] A display means for displaying a character data string; a first conversion means for converting the character data into a predetermined two-digit code string; and a character data which cannot be converted by the first conversion means. Second converting means for converting the character string into a code string having three or more digits, instruction means for instructing transmission of a character data string displayed on the display means, and a character data string instructed to be transmitted by the instruction means. Detecting means for detecting character data which can be converted only by the second converting means; converting the character data detected by the detecting means into a code string of three or more digits according to the second converting means; Converting the character data not detected by the means into a two-digit code string according to the first converting means; And creation means for creating a data transmission apparatus characterized by comprising a transmitting means for transmitting a code string created by the creating means. 2. The method according to claim 1, wherein the creating unit connects the code string converted by the first converting unit and the code string converted by the second converting unit to identify the code string. 2. The data transmission device according to claim 1, wherein a code is inserted.