KR19990084351A - Two-way wireless call message transmission and reception apparatus and method - Google Patents

Abstract

The present invention relates to an apparatus and a method for transmitting / receiving a two-way radio call message, and to an apparatus and a method for two-way radio call transmission / reception for distinguishing and transmitting whether the message is standardized data or graphic data. According to the present invention, a classification data signal indicating that a message written by a user is graphic data or formatted data according to a transmission mode is positioned immediately after the header part of the message part, and then the actual message data is positioned. Regardless of the code form, the data stream is transmitted with an array of bit streams of pixel values, while the discrimination data signal is discriminated upon reception so that the graphic data is displayed while maintaining the arrangement of the bit streams of the pixel values in transmission. The formatted data is transmitted in a predetermined code form at the time of transmission, and is displayed in a predetermined character form according to the predetermined code form at the time of reception, thereby making it compatible with an apparatus capable of processing only existing standardized data. The formal code type Nor independent of the data suggests a two-way pager, receiving apparatus and receiving method, which is an effect that it is possible to pass freely express doctor sender wishes to transfer.

Description

Two-way wireless call message transmission and reception apparatus and method

The present invention relates to an apparatus and a method for transmitting / receiving a two-way radio call message, and an apparatus and method for two-way radio call message transmission and reception for distinguishing and transmitting whether the message is standardized data or graphic data. -way paging).

In general, when using a wireless paging device that displays a message containing letters and numbers, the caller wishing to send a message uses a personal computer equipped with a modem or a telephone. Looking at the conventional message transmission method for the case as follows.

First, the caller calls the mobile communication service center through the telephone, and then reads the assigned call number of the user of the wireless paging device to call and the message to be transmitted. Inputs a call number and a message to be transmitted by the caller using the keyboard.

In this case, when the transmission message data input by the worker is one-way, it is converted into a code on a radio calling protocol such as a Post Office Standardization Advisory Group (POCSAG) code or a FLEX and then transmitted through a transmission antenna. In the bidirectional case, the signal is converted into a code on a radio calling protocol such as REFLEX and then transmitted through a transmitting antenna.

In addition, when using a personal computer equipped with a modem, the caller connects to the mobile communication service center using a modem installed in the personal computer, and then uses the keyboard to call and transmit the call number of the user of the wireless paging device. The message is entered into the mobile communication service center in the same manner as described above. At this time, the mobile communication service center converts data corresponding to an input call number and a message into a code on a radio call protocol and transmits the data through a transmission antenna.

A user of a wireless paging device receiving a message transmitted through the above transmission process sequentially stores the received message in a memory and simply displays the message through a display means such as an LCD.

Hereinafter, a conventional bidirectional wireless calling method will be described with reference to FIG. 1.

1 is a block diagram illustrating a conventional two-way radio call apparatus, and includes a transceiver 20 for transmitting and receiving a radio call signal through an antenna 10 and a signal processor for processing a signal received from the transceiver 20. 30, a central processing unit 40 for controlling and processing data output from the signal processing unit 30;

Memory unit 50 for storing and outputting the data applied from the central processing unit 40, and the LCD drive control unit 70 for driving control of the LCD display unit 80 in accordance with the control signal of the central processing unit 40 And, the LCD display unit 80 to display the data to the outside according to the drive control of the LCD drive control unit 70 and the signal generated by the user's button or key (not shown) operation of the central processing unit ( And a user interface unit 60 for processing between them.

Hereinafter, referring to the operation of each component, the transceiver 20 transmits and receives a radio call signal wirelessly, and the signal processor 30 connected to the transceiver 20 transmits the received signal to a synchronization signal and an address. Signals, vector signals, and messages are accurately classified and applied to the central processing unit 40. The central processing unit 40 stores the messages applied by the signal processing unit 30 in the memory unit 50 or drives the LCD. The controller 70 is driven to display on the LCD display 80. In addition, the user interface unit 60 plays a control role for signal processing of each unit according to a user's button or key manipulation.

On the other hand, in the case of message transmission, only the message selected by the user among predetermined messages is transmitted by the CPU 40 in a standardized data format.

Subsequently, FIG. 2 is a flowchart illustrating a conventional method of transmitting a two-way radio call apparatus. The data search step (S10) is performed to search for data to be transmitted, and the data search is performed at the data search step (S10). A data selection step (S20) in which a selection is made; a code conversion step (S30) in which a code of data selected in the data selection step (S20) is converted;

An encoding step (S40) of encoding the data converted through the code conversion step (S30), a transmitting step (S50) of transmitting the encoded data through the encoding step (S40), and the data selection step (S20). If the data is not selected in step S10, the data search is repeatedly executed, and only the data selected in the data selection step S20 is converted into a standardized code in a predetermined code form. The converted message is transmitted after being encoded according to the general paging protocol format.

However, the conventional two-way radio call method as described above can only transmit and receive data in the form of a conventional form, that is, a predetermined coded form corresponding to the existing letters and numbers, so that the terminal has two or three keys. In case of having only, there is a problem in that the limitation of data communication that the user cannot express his intention freely is exposed.

In addition, even if a message that is frequently used repeatedly is selected and transmitted in advance, there is a problem that the user cannot accurately express the message if the desired message is not defined. The high level of technical support is accompanied by high price and difficult implementation.

Accordingly, the present invention has been made in view of the above-described problems, and the present invention has been invented to solve these problems, and the present invention is capable of writing a message on the LCD display means and the LCD display means, which are touch panels of a predetermined size. By providing and receiving graphic data consisting of data in the form of a bit stream having a pixel value of 0 and 1 for writing characters and numbers written on the LCD display means, the user is not limited to the data of the standard form. An object of the present invention is to provide an apparatus and method for transmitting / receiving a two-way radio call message to enable free expression of expressions.

The technical idea of the invention required to achieve the object of the present invention is to write data to be transmitted to the LCD display means by using a writing means, and display the data to be written by the writing means. Display the data; and control means inserts and transmits a division data signal indicating the type of data according to the data transmission mode of the data written on the LCD display means, and displays the data according to the division data signal upon data reception. It is to control as much as possible.

1 is a block diagram showing a conventional two-way radio call device.

Figure 2 is a flow chart illustrating a transmission method of a conventional two-way radio call device.

3 is a diagram illustrating a bidirectional radio calling protocol format according to the present invention.

Figure 4 is a block diagram showing a two-way radio call message transceiver according to the present invention.

FIG. 5 is an enlarged exemplary view showing a state in which character graphic data is written in an LCD display unit which is a main part of FIG. 4; FIG.

6 is a flow chart illustrating a transmission and reception method of a two-way radio call message transmission and reception apparatus according to the present invention.

<Description of the symbols for the main parts of the drawings>

10, 100: antenna 20, 110: transceiver

30, 120: signal processor 40, 130: central processing unit

50, 140: memory unit 60, 150: user interface unit

70, 160: LCD drive control unit 80, 170: LCD display unit

Hereinafter, with reference to the accompanying drawings will be described a specific embodiment for achieving the object of the present invention.

3 is a diagram illustrating a bidirectional wireless calling protocol format according to the present invention, wherein the protocol format includes a synchronization unit including a synchronization signal for synchronization and a unique number (hereinafter, address) assigned to a user. And a vector portion including a vector signal indicating the type (letter or number), length and start point of the message, and a header portion (not shown) after the header portion (not shown). It consists of a signal having a certain number of bits (hereinafter referred to as a classification data signal) for distinguishing forms and a substantial message data.

4 is a block diagram illustrating an apparatus for transmitting / receiving a two-way radio call message according to the present invention, and FIG. 5 is an enlarged exemplary view showing a state in which characters corresponding to graphic data are written on the LCD display unit 170, which is a main part of FIG. to be.

As shown in FIG. 4, the transmitting and receiving device according to the present invention includes a transmitting and receiving unit 110 for transmitting and receiving a radio call signal through an antenna 100, and a transmitting and receiving unit from the transmitting and receiving unit 110. A signal processor 120 for processing signals, a central processor 130 for controlling and processing data output from the signal processor 120,

Memory unit 140 for storing and outputting data applied from the central processing unit 130, and the LCD drive control unit 160 for driving control of the LCD display unit 170 in accordance with the control signal of the central processing unit 130 And an LCD display unit 170 for displaying data to the outside or outputting data written by a user to the LCD driving controller 160 according to the driving control of the LCD driving controller 160, and a user's button or key. It comprises a user interface unit 150 for processing the signal generated by the operation (not shown) with the central processing unit 130.

Hereinafter, with reference to the accompanying Figures 4 and 5 will be described in detail the operation of the two-way radio call message transmission and reception apparatus according to the present invention.

First, as shown in FIG. 5, the LCD display unit 170 is a touch panel having a predetermined size, for example, a size of 13 × 19, in which pixels are arranged at regular intervals in a horizontal direction and a vertical direction. The user (sender) writes data to be sent to the receiver by means of a writing means such as an electronic pen (not shown), for example, characters "waiting", and then manipulates a key or button (not shown) mounted on the device. The mode in which the data is to be transmitted, i.e., whether to transmit the data in the graphic data format or the formatted data format, is determined.

That is, the data is transmitted after inserting the division data signal to distinguish the format of the data after the header part of the message part including the data to be transmitted, and upon reception, similarly based on the division data signal included after the header part of the message part. It is determined whether the data that comes after is formal data or graphic data.

For example, in the case where the transmission mode is a standardized data transmission mode, if the data format is numeric data, the data is transmitted in units of 4 bits except the header part, so that the 4-bit data immediately after the header part, That is, the first division data signal is set to '0000', and if the data format is character data, the data is composed of 7 bits except the header portion, and thus, the first division data consisting of 7 bits immediately after the header portion. Make the signal '0000000'.

On the other hand, when the transmission mode is the graphic data transmission mode, if the data format is numeric data, since the data is transmitted in units of 4 bits except the header part, 4-bit data immediately after the header part, that is, second division If the data signal is '1111', and the data format is character data as shown in FIG. 3 with attached data, the data is composed of 7-bit units except for the header part. Set the two-part data signal to '1111111'.

The transmission mode of the data to be transmitted and the classification data signal according to the transmission mode are determined in the same manner as described above. Hereinafter, the transmission process when the data format is character data will be described.

As shown in FIG. 5, the value of the pixel corresponding to the position where each character of “waiting” written on the LCD display unit 170 is written depends on the initial value of the pixel. It is converted from '1' or '1' to '0'.

That is, for example, when the value of the pixel in which the character is not written is set to '0' while the value of the pixel in which the character is written is set to '1', the touch panel of the LCD display unit 170 Pixels of lines 1 to 3 where no character is written have a value of '0', and pixel values of lines 4 to 10 where the above character starts are sequential as '01110101101001110100001010100100001010 ...' Pixels in rows 11 through 13, which are arranged in the form of a bit stream and are not written again, have a value of '0'.

The pixel value data having the sequential array of bit streams as described above is applied to the central processing unit 130 through the LCD driving controller 160, and the central processing unit 130 is the message shown in FIG. The message data in the part is to be kept with the arrangement of the bitstream.

The graphic data that has undergone the above process is output to the transceiver 110 through the signal processor 120, and the transceiver 110 is converted and amplified into an analog signal suitable for transmission and transmitted through the antenna 100. Done.

As described above, the reception process of the transmission signal including the graphic data goes through a process opposite to that of the transmission process.

That is, the signal transmitted as described above is received by the antenna 100 of the receiving apparatus according to the present invention and input to the transceiver 110, the transceiver 110 has the original data format of the input analog signal The digital signal is converted into a digital signal and output to the signal processing unit 120. The signal processing unit 120 synchronizes the synchronization signal included in the synchronization unit of the digital signal and writes the address signal included in the address unit to the user. It is compared with the assigned address signal, that is, the call signal.

Here, when the address signal compared by the signal processor 120 is the same as the pre-assigned address signal, reception of the received signal is determined, and after calculating the length and start position of the graphic data included in the received signal The address signal, the vector signal and the graphic data are output to the central processing unit 130, respectively.

Therefore, the central processing unit 130 applies a control signal to the LCD driving controller 160 to drive the LCD display unit 170, and the sequential bit stream of the pixel value that the graphic data had when transmitted is intact. It is maintained so that it is displayed on the touch panel of the LCD display unit 170.

As described above, the apparatus for transmitting / receiving a two-way radio call message according to the present invention may transmit a word to be transmitted by a user using a writing means such as an electronic pen, for example, on a touch panel of the LCD display unit 170. As a result, the limitation of communication can be overcome, and the situation and message can be notified accurately and quickly even when the user is in a dangerous situation or wants to send an urgent message. In addition, when the transmitted graphic data is displayed while the order of the arranged bit streams is maintained as it is, it can be received without any omission of some data, thereby improving the accuracy of message reception.

Next, a method of transmitting and receiving a bidirectional wireless call message according to the present invention will be described with reference to FIG. 6.

As shown in FIG. 6, the transmission and reception method according to the present invention includes an initial control process (S1000) in which an initial state of a terminal is controlled, and whether the terminal is currently receivable after the initial control process (S1000). Receiving determination process (S1100) is determined whether or not in a possible region, and if it is determined that the reception is possible in the reception determination process (S1100), a reception mode determination process for determining whether the mode is a reception mode or a transmission mode ( S1200),

When it is determined that the reception mode in the reception mode determination process (S1200), the reception time adjustment process of adjusting the reception time (S1400), and the data reception process of receiving a message after the reception time adjustment process (S1400) (S1400) and After the data is received through the data receiving process (S1400), a synchronization process (S1500) that the synchronization signal included in the data is matched,

After synchronization is synchronized in the synchronization process (S1500), if it is determined that the address is identical to the previously assigned address signal (S1600) and the address is determined in the address determination process (S1600), the message A data receiving process of repeatedly receiving the data when it is determined that the discriminating data signal inserted into the unit is discriminated between the discriminating data signal (S1700) and the address discrimination process (S1600). S1400),

In the distinguished data signal determination process (S1700), a standardized data confirmation process (first division signal confirmation process; S1800), which is confirmed as a type of data, is confirmed in the standardized data confirmation process (S1800). A first display process (S1900) in which standardized data is displayed, and a graphic data verification process (second division signal confirmation process; S2000) in which the type of data is determined to be graphic data in the classification data signal determination process (S1700); ,

A second display process (S2100) in which the graphic data checked in the graphic data checking process (S2000) is displayed, and a data input process in which data to be transmitted is input when it is determined that the transmission mode is received in the reception mode determination process (S1200). (S2200), a data determination process of determining the type of data input through the data input process (S2200) (S2300),

When it is determined that the type of data determined in the data determination process (S2300) is standardized data, the encoding process (S2400) converted into a code and the classification data signal indicating that the data is formatted after the encoding process (S2400) are A first division signal insertion process S2500 to be inserted, a first transmission process S2600 transmitted after the division data signal is inserted in the first division signal insertion process S2500, and

When it is determined that the type of data determined in the data determination process (S2300) is graphic data, the data is formatted after the bitstream arrangement process (S2700) and the bitstream arrangement process (S2700). And a second transmission process (S2600) transmitted after the division data signal is inserted in the second division signal insertion process (S2800).

Hereinafter, the process after the reception mode determination process (S1200) will be described in detail.

First, when it is determined that the reception mode in the reception mode determination process (S1200), the message is received through the antenna 100 of the two-way radio call device according to the present invention, the signal through the signal conversion process of the transceiver 110 The signal processing unit 120 is applied to the processing unit 120, and the signal processing unit 120 compares the address signals after synchronization is made based on the synchronization signal inserted into the received data.

As a result of the comparison of the address signals, when the same as the pre-assigned address signal, the received data is applied to the central processing unit 130, and the central processing unit 130 is a division data signal inserted into the message portion of the received data. Will determine what is

That is, as described above, it is determined whether the received data is graphic data or standardized data based on the initial 7-bit data which is the classification data signal included in the message unit.

For example, if the initial 7-bit data, which is the division data signal, is '1111111', it is determined as graphic data, and the central processing unit 130 controls the LCD driving controller 160 to drive the LCD display 170. To display the graphic data represented by the bit stream array of pixel values during transmission.

On the other hand, if the initial 7-bit data that is the division data signal is '0000000', it is determined as the formatted data, and the central processing unit 130 stores the formatted data represented by the predetermined code array on the LCD display unit 170. To be displayed.

Meanwhile, when it is determined that the transmission mode is not the reception mode in the reception mode determination process (S1200), data to be transmitted is input on the touch panel of the LCD display unit 170, and the input data is transmitted as some kind of data. If it is selected by the user's button or key operation, the CPU 130 accepts it through the user interface unit 150.

The CPU 130 determines the type of data by the user's selection. When the data to be transmitted is data in a form of a standard code, the data is coded in a predetermined code form. After the conversion, the first division data signal indicating that the data is formatted immediately after the header portion in the message portion, that is, '0000000' consisting of 7 bits is inserted and transmitted.

On the other hand, when the data to be transmitted is graphic data, the CPU 130 arranges the data in the form of a bit stream according to the present invention, and then, as described above, immediately after the header part in the message unit. The second segment data signal '1111111', which is a 7-bit second data, is inserted to be transmitted.

Here, the transmission method according to the present invention is not limited to transmitting graphic data in the form of a bit stream, and may compress and transmit data arranged in the form of the bit stream. Graphic data can be restored and displayed.

As described above, according to the present invention, a classification data signal indicating that the message written by the user is graphic data or formatted data according to the transmission mode is inserted immediately after the header part of the message portion, and the graphic data is in a form of a standard code. Regardless of whether the data stream is transmitted with an array of bit streams of pixel values, the discrimination data signal is discriminated upon reception so that the graphic data is displayed while maintaining the arrangement of the bit streams of the pixel values in transmission. By allowing the formatted data to be displayed in the form of a predetermined code, it is compatible with a device that can only process existing standardized data, and freely expresses the sender's intention to deliver regardless of the data in the form of the standardized code. Can express and pass It has an effect.

Claims (13)

In the apparatus for transmitting and receiving data regardless of the formal data format of a predetermined code form, Writing means for writing the data to be transmitted, LCD display means for displaying data received by said writing means and displaying received data; A control means for inserting and transmitting a classification data signal indicating the type of data according to the data transmission mode of the data written in the LCD display means, and controlling the display to be displayed according to the classification data signal upon receiving the data. Two-way radio call message transmission and reception device, characterized in that. The apparatus of claim 1, wherein the writing means is an electronic pen. The apparatus of claim 1, wherein the LCD display means is a touch panel of a predetermined size in which pixels are arranged at regular intervals in a horizontal direction and a horizontal direction. In the transmission method that can be transmitted regardless of the type of data, A data input process of inputting data to be transmitted by being determined as a transmission mode in a mode determination process of a terminal whose initial state is controlled; A data determination process of determining the type of data input through the data input process; If it is determined that the type of data determined in the data determination process is the standardized data, the encoding process is converted into a code; A first division signal insertion step of inserting a division data signal representing the formatted data after the encoding process; A first transmission process which is transmitted after the division data signal is inserted in the first division signal insertion process; A bitstream arrangement process arranged in a bitstream form when it is determined that the type of data determined in the data determination process is graphic data; A second division signal insertion step of inserting a division data signal representing the formatted data after the bitstream arrangement process; And a second transmission process transmitted after the division data signal is inserted in the second division signal insertion process. The method according to claim 4, wherein when the type of data to be transmitted is data in the form of a standardized code, a distinct bit number of division data signal is inserted after the header portion of the message unit to indicate that the data to be transmitted is the form of the data before transmission. Two-way radio call message transmission method. 5. The bidirectional radio call message according to claim 4, wherein when the type of data to be transmitted is graphic data, a predetermined bit number of division data signal is inserted after the header portion of the message unit to indicate that the data to be transmitted is graphic data. Transmission method. The method according to claim 4, wherein when the type of data to be transmitted is graphic data, the graphic data is arranged in the form of a bitstream according to the values of pixels in which characters are written on the touch panel and pixels in which characters are not written before insertion of the classification data signal. Method for transmitting a two-way radio call message, characterized in that. The method of claim 4 or 7, further comprising compressing a bitstream arrangement of graphic data to be transmitted. A reception method for receiving and displaying data transmitted in a bit stream form and a formatted data form, A message reception process in which data is received by being determined as a reception mode in a mode determination process of a terminal whose initial state is controlled; After the message is received through the message receiving process, the synchronization process of the synchronization signal included in the message is matched, An address discrimination process of determining whether or not the same as the pre-assigned address signal after synchronizing in the synchronization matching process; A discrimination data signal discrimination step of discriminating a discrimination data signal inserted into the message unit when it is determined that the addresses match in the address discrimination step; A formalized data verification process of confirming that the type of data is standardized data in the classification data signal discrimination process; A first display process of displaying the structured data identified in the process of confirming the standardized data; A graphic data checking step of determining that the type of data is graphic data in the discriminating data signal discriminating step, and And a second display process of displaying the graphic data identified in the graphic data checking process. 10. The method of claim 9, further comprising the step of determining the distinguished data signal inserted after the header portion of the message portion before displaying the received data. 10. The method of claim 9, wherein when the distinguished data signal included in the received data indicates the formatted data, displaying the data in a form of a standardized code. 10. The method of claim 9, wherein if the distinguished data signal included in the received data represents graphic data, displaying the data in an array of bitstreams maintained during transmission. The method of claim 9 or 12, further comprising the step of restoring and displaying the bitstream of the received graphic data.