JP3063566B2 - Wireless terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless terminal device having a display section and a telephone directory function, and performing wireless communication with a center device to transmit image data and the like.

[0002]

2. Description of the Related Art In a terminal device of this type, such as a teleterminal, which is wirelessly connected to a center device, when a caller transmits various information such as image data and character data to a partner terminal device, first, the partner terminal device. Is transmitted to the center device as a wireless signal. In this case, when the center device receives the ID code from the calling terminal device side, it compares the received ID code with each ID code registered in the internal memory in advance. If the received ID code is registered in the internal memory, a transmission permission signal indicating permission of transmission of various information such as image data is returned to the calling terminal device. The calling terminal device transmits various information such as image data and character data to the center device by receiving the transmission permission signal, while the center device transmits the information to the partner terminal device indicated by the ID code from the calling terminal device. Transmit image data and the like. As a result, image data, character data, and the like transmitted from the calling terminal device are displayed on the display of the partner terminal device.

[0003]

By the way, in the center unit, the I / O of the partner terminal unit transmitted from the calling terminal unit side is performed.
If the D code is not registered in the internal memory, a transmission disable signal is returned to the calling terminal device. In this case, the calling terminal device displays an error on the display to notify the calling party that image data or the like cannot be transmitted. However, when the caller performs a new call operation using this calling terminal device, for example, to transmit image data or the like to another terminal device, the above-described error display is deleted and a new display is displayed on the display. The call screen is displayed. For this reason, after a while, the calling party does not know which terminal is the partner terminal in which the error occurred, and there is a problem that the caller re-calls the same terminal that cannot be connected. Accordingly, an object of the present invention is to, when a call is made to a terminal for which an ID code has not been registered and an error is displayed, an unreachable terminal on which the error is displayed is accurately identified at the time of recall.

[0004]

In order to solve such a problem, the present invention relates to a telephone which is wirelessly connected to a center device and stores a plurality of destination names and respective identification numbers corresponding to the respective destinations. It has a book memory and a display for displaying the contents of the telephone directory memory when making a call, and also supports a case where various information such as image data and character data is transmitted to the terminal device indicating the destination connected to the center device. In the wireless terminal device transmitting the identification number to the center device, if the center device returns a transmission disable signal indicating that various information cannot be transmitted in response to the transmission of the identification number, an area corresponding to the identification number in the telephone directory memory. Setting means for setting an abnormal flag in the display area, and abnormal display adding means for adding an abnormal display to a display area corresponding to the identification number of the display according to the set abnormal flag. Those were.

[0005]

In response to the transmission of the identification number to the center device, when the center device returns a transmission disable signal indicating that various information such as image data and character data cannot be transmitted, the identification number in the telephone directory memory is corresponded. An abnormal flag is set in the area to be displayed, and an abnormal display is added to the display area corresponding to the identification number on the display. As a result, for example, if image data or the like cannot be transmitted to a terminal whose ID code has not been registered and transmission becomes impossible, it is possible to easily identify the terminal that has become unable to transmit, so that a re-call to a terminal that cannot be connected can be made. It can be prevented before it happens.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 4 is a diagram showing a configuration of a wireless system. This system includes wireless terminal devices 1A and 1B and a center device 5A.
Consists of Here, for example, in the wireless terminal device 1A, when transmitting various information such as image data to the wireless terminal device 1B via the center device 5, first, the ID of the wireless terminal device 1B
The code is wirelessly transmitted to the center device 5. Then, the center device 5 receives this ID code and checks it against each ID code registered in the internal memory in advance. If the received ID code is registered in the internal memory, the image data and the character data received from the wireless terminal device 1A are transmitted to the wireless terminal device 1B and displayed on the display of the wireless terminal device 1B.

FIG. 5 is a block diagram showing the configuration of the center device 5. The center device 5 includes a CPU 51, a wireless transmission / reception unit 52, an operation unit 53, a ROM 54, a RAM 55, a display unit 56, and the like. Here, the RAM 55 corresponds to the above-described internal memory, and registers each ID code of each accommodated wireless terminal device. FIG. 6 is a block diagram illustrating a configuration of the wireless terminal device 1. In FIG.
Is a main unit for performing main processing of this apparatus, 12 is a modem unit for transmitting and receiving image data and character data, and 13
Is a touch panel unit formed on the lower surface of an LCD unit to be described later and formed of various touch keys, 14 is an LCD unit having a display area capable of displaying a telephone directory screen and the like, and 15 is a wireless transmitting and receiving unit for transmitting wireless signals.

Here, the above-mentioned main section 11 is configured as follows. That is, 21 is a CPU, 22 is a ROM, 23 is a CGROM that stores basic display data that is the basis of display on the LCD unit 14, 24 is an SRAM that stores telephone directory data and the like, 25 is a buzzer, and 26 is a clock unit. It is.
27 is an LED unit, 28 is a gate array, 29 is A
A / D converter, 30 is a control unit, and 31 is a VRAM in which image data is stored. Note that the modem unit 12 is
1, gate array 42, EEPROM 43, ROM 4
4 and an SRAM 45.

By the way, in this wireless terminal device 1, by operating each touch key of the touch panel section 13, L
Various displays such as handwritten characters can be displayed on the CD unit 14. The image data thus displayed on the LCD unit 14 is stored in the VRAM 31 at the same time. On the other hand, the SRAM 24 is provided with a telephone directory data area in which data such as the name (destination name) of the handler of the partner wireless terminal, the ID code of the partner wireless terminal, or the telephone number is stored in pairs.

Here, when transmitting the image data displayed on the LCD unit 14 to the partner terminal, first, a predetermined key on the touch panel unit 13 is operated. Then, SRAM2
4 is read out and displayed on the LCD unit 14, and is switched to a telephone directory transmission screen. Next, when a desired partner wireless terminal is selected with a touch key, the ID code of the corresponding partner wireless terminal is entered by the CPU 21 into the SRAM.
The data is read out from the corresponding telephone directory data in 24 and sent to the CPU 41 in the modem unit 12. When such an ID code of the partner wireless terminal is sent, the CPU 41
Reads the ID code of the terminal itself from the EPROM 43. The CPU 41 in the modem 12 sends each ID code of the partner wireless terminal and the own terminal to the wireless transmitting / receiving unit 15 via the gate array 42, and the wireless transmitting / receiving unit 15 transmits the ID code to the center device 5 as a wireless signal.

When each ID code is transmitted from the wireless terminal device 1 in this manner, the CPU 51 of the center device 5 receives the ID code via the wireless transmission / reception unit 52. Then, it checks whether or not the received ID code is registered in the RAM 55, and if the ID code is registered, returns a transmission permission signal to the corresponding calling wireless terminal via the wireless transmitting and receiving unit 52. CP of the wireless terminal device 1 that is the corresponding calling terminal
When receiving the transmission permission signal via the wireless transmission / reception unit 15 and the CPU 41, the U 21 sends the image data stored in the VRAM 31 to the CPU 41, and causes the CPU 41 to transmit the image data to the center device 5 via the wireless transmission / reception unit 15. At this time, if there is character data to be transmitted, this character data is also transmitted to the center device 5 side.
As a result, the center device 5 transmits the image data and the character data to the partner wireless terminal indicated by the ID code and causes the LCD unit 14 to display the image data and the character data.

When the ID code of the other wireless terminal is not registered in the RAM 55, the center device 5 returns a transmission disable signal to the calling wireless terminal. In this case, the calling wireless terminal displays an error on the LCD unit 14. However, when the calling wireless terminal performs a new calling operation, this error display is deleted and switched to a new telephone directory transmission screen, and thereafter, the error display is not displayed. As a result,
After a while, the calling side does not know which terminal is the partner terminal in which the error occurred, and there is a problem that a call is re-issued to the same connection-disabled terminal whose ID code is not registered. For this reason, in the present invention, a wireless terminal that is not connectable and whose ID code is not registered is identified, so that useless re-call to the terminal can be prevented.

FIG. 1 is a flowchart showing the operation of the wireless terminal device 1 performing the above operation. FIG. 3 is a diagram showing a display state of a telephone directory screen displayed on the LCD unit 14 of the wireless terminal device 1. The operation of the main part of the present invention will be described in detail based on the flowchart of FIG. 1 and the explanatory diagram of FIG. For example, when a predetermined key of the touch panel unit 13 is operated to transmit image data displayed on the LCD unit 14 to the partner wireless terminal, the telephone directory data in the SRAM 24 is read out and the LCD unit 14 is read. As shown in (a), the name (destination name) of the handler of the called wireless terminal to be called is displayed and a telephone directory transmission screen is displayed.

Here, for example, when a touch key corresponding to the display area of the partner name "Jiro Kaneda" shown in FIG. 3A is operated, in FIG. 1A, the determination in step S1 is "Y". Becomes In this case, the CPU 21 of the wireless terminal device 1
Reads out the ID code of the corresponding wireless terminal from the telephone directory data in the SRAM 24 and transmits it to the center device 5 together with the ID code of the terminal itself. At this time, the center device 5 confirms the registration of the ID code of the calling wireless terminal and determines whether or not the ID code of the partner wireless terminal is registered. Is returned to the calling wireless terminal.

In step S2 of FIG. 1A, it is determined whether or not the transmission permission signal can be received (ie, whether or not connection with the partner wireless terminal is possible). In step S3, a normal communication operation for transmitting image data and character data is performed. On the other hand, if the ID code of the partner wireless terminal is not registered, the center device 5 returns a transmission disable signal. When such a transmission disable signal is returned, or when “connectable” in step S2 becomes “N” for other reasons,
The wireless terminal device 1 that is the calling wireless terminal disconnects the wireless communication with the center device 5 in step S4.

Then, in step S5, it is determined whether or not "ID code error" has occurred. Here, the reason for the "communication disconnection" in step S4 is an ID code abnormality due to the ID code of the partner wireless terminal not being registered. Therefore, if the determination in step S5 becomes "Y", the telephone call in the SRAM 24 in step S6 is made. An abnormal flag is set corresponding to the ID code corresponding to the partner wireless terminal in the book data area. Thus SR
SR corresponding to the ID code of the partner wireless terminal in AM24
When an abnormal flag is set in a predetermined area of the AM 24, the CPU 21 of the wireless terminal device 1 performs a predetermined abnormal display on the telephone directory screen of the LCD unit 14.

FIG. 1B is a flowchart showing the operation of the CPU 21 for performing an abnormal display on the telephone directory screen.
That is, when an abnormality flag is set in step S6 of FIG. 1A in accordance with the ID code of the partner wireless terminal in the SRAM 24, the CPU 21 sets each display data currently displayed on the LCD unit 14 (ie, It is determined in step S7 of FIG. 1B whether or not there is display data in which an abnormality flag is set due to an ID code abnormality in the data of each of the destinations.
To judge. If there is display data for which an abnormal flag is set, an abnormal display is added to the display data in step S8. If the abnormality flag has not been set, a normal display is performed in step S9.

Here, as shown in FIG. 3, there are six examples in which an abnormal display is performed on display data. That is, in the example of FIG. 3A, the display data indicated by “x” is added to the display data “Jiro Kaneda”. As a result, even when the telephone directory screen is displayed again and a call is made to the corresponding wireless terminal, the process shown in FIG. 1B is always executed. Is always displayed,
Therefore, the calling side can recognize that this terminal cannot make a call.

As an example of the case where an abnormal display is performed on display data, in the example of FIG. 3B, "shaded" display is performed on the telephone directory transmission screen as indicated by hatching in the figure. In the example of FIG. 3C, reverse or blink display is performed. Further, in the example shown in FIG.
4A displays a message saying "Calling is not possible due to abnormal number". Note that, on the telephone directory individual screen shown in FIG. 3E, a display indicating "this ID is not used" is added to the display area 14B. Further, on the telephone directory individual screen shown in FIG. 3 (f), a mark “x” is added to the corresponding ID code.

Next, FIG. 2 is a flowchart showing the operation of the center device 5 responding to the operation of the above-mentioned wireless terminal device 1. That is, the CPU 51 of the center device 5 always determines whether or not a wireless signal has been received from each wireless terminal device based on a call from each wireless terminal device, as shown in step S11. Here, when the wireless signal from the wireless terminal device is received and the determination in step S11 becomes “Y”, the destination ID code (that is, the ID code of the called side) included in the wireless signal from the calling wireless terminal is changed. Take it out in step S12.

Next, the extracted partner ID code is RA
It is determined in step S13 whether or not the destination ID code is registered in M55. If the destination ID code is registered, the transmission permission signal is returned to the calling wireless terminal side as described above.
Then, a communication process of receiving image data and character data transmitted from the calling wireless terminal side by returning the transmission permission signal and transmitting the image data and character data to the partner wireless terminal side (called wireless terminal) indicated by the ID code is performed in step S14. Then, a normal end process is performed in step S15, and the process ends. On the other hand, if the destination ID code is not registered in the RAM 55, the CPU 51 executes the above-described abnormal end processing such as the transmission impossible signal return to the calling wireless terminal in step S16. As a result, on the calling wireless terminal side, the above-described abnormal display is added to the corresponding display data.

In this embodiment, the wireless terminal device transmits image data and character data to a partner wireless terminal wirelessly connected to the center device. In addition, the wireless terminal device communicates with the center device by telephone. Image data and the like can also be transmitted to an image terminal such as a facsimile connected via a line. Therefore, in this case, instead of transmitting the ID code of the partner wireless terminal, the partner telephone number is transmitted to the center device, and the center device determines whether or not this telephone number has been registered. Further, the wireless terminal device can call a pager or the like via the center device.

[0023]

As described above, according to the present invention, in response to the transmission of the identification number to the center device, a transmission disable signal indicating that various information such as image data and character data cannot be transmitted is returned from the center device. Then, an abnormal flag is set in an area corresponding to the identification number in the telephone directory memory, and an abnormal display is added to a display area corresponding to the identification number on the display. When transmission becomes impossible due to transmission of various information such as image data to a registered terminal, the terminal that has become unable to transmit can be easily identified, and thus a recall to a terminal that cannot be connected can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a flowchart showing an operation of a main part of a wireless terminal device according to the present invention.

FIG. 2 is a flowchart illustrating an operation of a center device responding to an operation of the wireless terminal device.

FIG. 3 is a diagram illustrating a display state when a call is made to a wireless terminal device that cannot be connected;

FIG. 4 is a diagram showing a configuration of a wireless communication system to which the present invention is applied.

FIG. 5 is a block diagram illustrating a configuration of a center device.

FIG. 6 is a block diagram illustrating a configuration of a wireless terminal device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Wireless terminal device, 5 ... Center device, 11 ... Main part,
12: Modem section, 13: Touch panel section, 14: LCD
, 15, 52 ... wireless transmission / reception section, 21, 41, 51 ... C
PU, 24, 45 ... SRAM, 55 ... RAM.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naoki Kumagai 2-7-1 Shimomeguro, Meguro-ku, Tokyo Telecom Create System Co., Ltd. (58) Field surveyed (Int.Cl. ⁷ , DB name) H04B 7/26 H04M 1/274 H04Q 7/00-7/38

Claims (1)

(57) [Claims] 1. A telephone directory memory, which is wirelessly connected to a center device and stores a plurality of destination names and respective identification numbers corresponding to the respective destinations, and a display for displaying the contents of the telephone directory memory when making a call. A wireless terminal device that transmits the corresponding identification number to the center device when transmitting various information to the terminal device indicating the destination connected to the center device, wherein the center device responds to the transmission of the identification number. Setting means for setting an abnormal flag in an area corresponding to the identification number of the telephone directory memory when a transmission impossible signal indicating that transmission of the various information is impossible is returned from the display unit according to the set abnormality flag. An abnormal display adding means for adding an abnormal display to a display area corresponding to the identification number.