JPH04177977A - Information communication equipment - Google Patents

Abstract

PURPOSE:To prevent occurrence of a communication error or the like by providing a detection means detecting the connection of an acoustic coupler and a means controlling a line changeover means to connect a selected communication line, reading a communication characteristic suitable for the communication line selected by a storage means so as to control a communication means to the equipment. CONSTITUTION:A relay 8 as a line changeover means is connected to a relay 6 via an amplifier 9 and a transformer 10 and to an acoustic coupler 7 connecting to a coupler connection section 12 via an amplifier 11. The coupler connection section 12 is provided with a detection means 13 activated through the connection to the acoustic coupler 7. Then based on the result of detection of the detection means 13 detecting the connection state of the acoustic coupler 7, the connection to the communication line 2 through the acoustic coupler 7 and the connection to other communication line are selected automatically and a communication characteristic suitable for the communication line 2 selected by the storage means 24 is read and set automatically and the information communication is implemented by a communication means 4 based on the communication characteristic. Thus, occurrence of a communication error or the like is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to information communication equipment such as, for example, a portable facsimile machine and a personal computer communication terminal.

(Prior art) Portable facsimile devices used as information communication equipment can be connected to a telephone line installed in a hotel room or a car phone, or can be connected to an acoustic coupler to a public telephone to transmit image data at any location. Sending and receiving are performed.

(Problems to be Solved by the Invention) By the way, for example, the initial transmission speed,
Communication characteristics such as image signal transmission level, equalizer depending on cable length, and initial reception speed are different.

However, conventionally, only one communication characteristic suitable for, for example, a line that is likely to be used frequently is set, and communication errors are likely to occur when other lines are used.

Additionally, if communication characteristics can be set using key operations, the communication characteristics must be reset each time a communication line is selected, and it is possible to forget the settings or set them differently. There is sex.

The present invention has been made in view of the above points, and an object of the present invention is to provide an information communication device that can automatically set communication characteristics suitable for a selected communication line and prevent the occurrence of communication errors. The purpose is to

C Structure of the invention] (Means for solving the problem) The invention of claim 1 provides a line switching means for switching between connection to a communication line through an acoustic coupler and connection to another communication line, and this line switching means. a communication means connected to each communication line to perform information communication, a storage means for storing communication characteristics suitable for each communication line, a detection means for detecting connection of the acoustic coupler, and a detection means for detecting the connection of the acoustic coupler. Selecting a communication line based on the result, controlling the line switching means to connect to the selected communication line, and reading communication characteristics suitable for the selected communication line from the storage means to control the communication means. The system is equipped with a control means for controlling.

According to a second aspect of the present invention, in the first aspect of the present invention, a display means is provided for displaying the communication line mode selected by the control means and the dialing method selected by the dialing method switching means.

(Operation) In the invention of claim 1, the connection on the communication line through the acoustic coupler and the connection with other communication lines are automatically selected based on the detection result of the detection means for detecting the connection state of the acoustic coupler. At the same time, communication characteristics suitable for the selected communication line are read from the storage means and automatically set, and information communication is performed by the communication means based on the communication characteristics.

In the second aspect of the invention, the display means displays the communication line mode selected by the control means and the dial method selected by the dial method switching means.

(Embodiment) Hereinafter, the configuration of an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 shows a configuration diagram of a facsimile machine as an information communication device. Reference numeral 1 denotes a relay, and connection to a communication line 2 such as a telephone line or a car telephone is switched by a control signal S1 from a CPU 21, which will be described later. Note that the communication line 2 includes:
Bell detection unit 3 that detects a calling signal and outputs it to the CPU 21
is connected.

A relay 6 is connected to the relay 1, which switches the connection between the communication line 2 and a modem 4 serving as communication means or a dial circuit 5 in response to a control signal S2 from the CPU 21. The dial circuit 5 transmits a pulse dial based on the input of the dial transmission signal P from the CPU 2+.

A relay 8 is connected to the modem 4 as a line switching means for switching the connection between the modem 4 and the communication line 2 or the acoustic coupler 7 in response to a control signal S3 from the CPU 21.

The relay 8 is connected to the relay 6 via an amplifier 9 and a transformer 10, and is also connected to an acoustic coupler 7 which is connected to a coupler connection section 12 via an amplifier 11.

The coupler connection section 12 is provided with a detection means 13 that is turned on when the acoustic coupler 7 is connected.

Further, 21 is a CPU as a control means, and this CPU2
The + bus 22 includes a modem 4, a ROM 23, a RAM 24 and an EEPRAM 25 as storage means, a scanner section 26 for reading the transmitted original, a printer section 27 for printing out received data, a keyboard 28, a display means 29, and a pulse method as a dial method. A dial method switching means 30 is connected thereto for selecting the tone method and the tone method. Also, bus 22
The relays 1 and 6° 8, the bell detection section 3, the dial circuit 5, the detection means 13, etc. are also connected to the .

The RAM 24 has a memory map as shown in FIGS. 2 and 3. The memory map in Figure 2 shows the equalizer values according to the initial transmission speed, image signal transmission level, and cable length as the transmission line characteristics suitable for each mode: telephone line mode, car phone mode, and acoustic coupler mode. I remember each one. The memory map shown in FIG. 3 stores equalizer values corresponding to the initial reception speed and cable length as line characteristics at the time of reception suitable for each mode of telephone line mode, car telephone mode, and acoustic converter mode.

Note that this RAM 24 is configured to ensure storage by a backup power source.

As shown in FIG. 4, the keyboard 28 is provided with a numeric keypad 31 for inputting telephone numbers, etc., a start key 32, a stop key 33, a one-touch key 34, a plurality of function keys 35, etc., as well as a liquid crystal display. A display means 29 consisting of a container or the like is provided. Note that the display means 29, as shown in FIG.
The line mode and dialing method written in the display data storage area can be displayed.

Next, the operation of this embodiment will be explained.

First, selection of line mode and setting of communication characteristics at the time of transmission will be explained with reference to FIGS. 6(a) and 6(b).

When the function key 35 is operated while the display means 29 is displaying the standby state (steps 1 and 2)
, Display "Kaisen Centaf" on the display means 29 (
Step 3).

Then, when you operate the start key 32 (step 4)
, detecting means 13 whether the acoustic coupler 7 is connected or not.
(Step 5) At this time, if the acoustic coupler 7 is not connected, read out the current line mode flag stored in the RAM 24 (Step 6).
, "Denwa Kaisen" or "Cellular Phone" is displayed on the display means 29 (step 7.8).

Then, if the line mode displayed on the display means 29 is correct, the line mode is set and stored in the RAM 24 by operating the start key 32 again. Also, if the line mode is not displayed on the display means 29,
By operating the function key 35, the display means 29 will alternately switch between "Denwa Kaisen" and "1 Cellular Phone", and when the desired line mode is displayed, by operating the start key 32, the line mode will be switched. The mode is set and stored in the RAM 24 (step 9.1
0).

On the other hand, if the acoustic coupler 7 is connected in step 5,
Step 11) to display "Coupler" on the display means 29;
By operating the start key 32, the line mode is set and stored in the RAM 24 (step 12). At this time, even if the function key 35 is operated, the line mode will not be switched.

Then, the parameter value of the communication characteristic of the set line mode is read out from the RAM 24.Step 13) First, the initial transmission speed is displayed on the display means 29, for example, [9600B P S
By operating the function key 35 (step 15), r7 is displayed.
200BPsJ r4800BPSJ r2400
The value is changed and displayed as B P SJ (step 16), and by operating the start key 32 when the desired value is displayed, the initial transmission speed is stored in the RAM.
The settings are stored in 24.

Then, the display means 29 displays the image signal transmission level, for example, r.
-10dBmJ will be displayed (step 17), and by operating the function key 35 (step 18), the value will be changed and displayed as "r-6dBmJ r-OdBm" (step 19), and the desired value will be displayed. By operating the start key 32 when is displayed, the image signal sending level is set and stored in the RAM 24.

Then, the equalizer value is displayed on the display means 29, for example, r3.
6kmJ is displayed (step 20), and by operating the function key 35 (step 21)
, rl, 8kmJ ro, OkmJr7.2kmJ (step 22), and by operating the start key 32 when the desired value is displayed, the equalizer value is set in the RAM 24. be remembered.

Once the line mode is selected and the communication characteristics are set in this manner, the display on the display means 29 returns to the standby state.

If the transmission characteristics are set in advance for each line mode in this way, even if the connection is changed to a general telephone line, a car phone, or a communication line through the acoustic coupler 7 at the time of transmission, By selecting a line mode, the transmission characteristics suitable for each line mode can be read from the RAM 24 and automatically set, and transmission can be performed based on the transmission characteristics suitable for that line mode, thereby preventing the occurrence of transmission errors. I can do it. In particular, when using the acoustic coupler 7, when the detection means 13 detects that the acoustic coupler 7 is connected to the coupler connection part 12, the CPU 2+ automatically selects the acoustic coupler mode and controls the relay 8. switch to connect to the communication line on the acoustic coupler 7 side, and also connect to the RAM 24.
Communication can be performed by reading out the communication characteristics of the acoustic coupler mode from .

Next, regarding the standby display displayed on the display means 29, the seventh
This will be explained with reference to the figures.

To judge the switching state of the dial method switching means 30 (step 31), if it is on the pulse side, the display means 29 will display "○○○".
/Pulse” (○ indicates a blank) and press R.
Write to the display data storage area of AM24 (Step 3)
2), and if it is on the tone side, the display means 29 displays “○○
○/Tone" is displayed and written into the display data storage area of the RAM 24 (step 33).

Next, read out the line mode flag set in the RAM 24 as described above (Step 34), and select one of "Denwa Kaisen/○○○", "Cellular phone, /○○○", or "Coupler/○○○". is written into the display data storage area of the RAM 24 (steps 35, 36, and 37).

Then, the contents written in the display data storage area of the RAM 24, that is, the currently selected line mode and dialing method are displayed on the display means 29, as shown in FIG. 4, for example (step 38).

In this way, by displaying the selected line mode and dialing method on the display means 29, even when the connection is changed to a general telephone line, a car phone, or a communication line through the acoustic coupler 7, the selected line mode and dialing method can be displayed. It is possible to prevent communication failures because the line mode and dialing method do not match the communication line being used, and even when communication does not go well, it is easy to determine whether it is because the line mode or dialing method does not match. and can be corrected.

Next, setting of communication characteristics at the time of reception will be explained with reference to FIG.

Note that this is performed with a certain line mode set in steps 1 to 12 of FIG.

If the start key 32 is operated while the display means 29 is displaying the standby state (steps 41 and 42), the set line mode will be displayed on the display means 29 (step 43), and the reception mode for setting will be displayed. When the characteristic parameters are specified (step 44), for example, the initial reception speed is displayed as r9600 B P SJ (step 45).
. Here, by operating the function key 35 (step 46), "7200BPSJ r480
The value is changed and displayed as 0BPsJ r2400BPSJ (step 47), and when the desired value is displayed, press the start key 32 or stop key 3.
3 (step 48), the initial reception speed is set and stored in the RAM 24.

Further, when the start key 32 is pressed, the process returns to step 44 to set the equalizer, and when the stop key 33 is pressed, the process returns to the standby display (step 49).

If the reception characteristics are set in advance for each line mode in this way, even if the connection is changed to a general telephone line, a car phone, or a communication line through the acoustic coupler 7 at the time of reception, By selecting a line mode, reception characteristics suitable for each line mode can be read from the RAM 24 and automatically set, reception can be performed based on the reception characteristics suitable for that line mode, and reception errors can be prevented. I can do it. In particular, when using the acoustic coupler 7, when the detection means 13 detects that the acoustic coupler 7 is connected to the coupler connection part 12, the CPU 2+ automatically selects the acoustic coupler mode and controls the relay 8. switch to connect to the communication line on the acoustic coupler 7 side, and also connect to the RAM 24.
It is possible to perform reception by reading out the reception characteristics of the acoustic coupler mode from .

〔Effect of the invention〕

According to the invention of claim 1, based on the detection result of the detection means for detecting the connection state of the acoustic coupler, the connection to the communication line through the acoustic coupler and the connection to other communication lines are automatically selected and set. At the same time, the communication characteristics suitable for the selected communication line can be read from the storage means and automatically set, allowing information communication to be performed based on the communication characteristics suitable for the communication line, and preventing the occurrence of communication errors. can do.

According to the invention of claim 2, by displaying the selected communication line mode and dialing method on the display means, when the connection to the communication line through the acoustic coupler and the connection to other communication lines are changed for use. However, it is possible to prevent communication failures because the selected communication line mote and dialing method do not match the communication line being used, and even if communication does not go well, the communication line mote or dialing method does not match. This makes it easy to determine and correct the problem.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the information communication device of the present invention, FIGS. 2 and 3 are RAM memory map diagrams, FIG. 4 is a front view of the keyboard, and FIG. 5 is a table of display means. FIG. 6 is a flowchart for setting transmission characteristics, FIG. 7 is a flowchart for setting standby display, and FIG. 8 is a flowchart for setting reception characteristics. 4. Communication means, 7.. Acoustic coupler, 8.. Line switching means, 13.. Detection means, 21.. Control means, 24.. Storage means, 29.. Display means, 30.. Dial method switching means. . Section 3 Straw-shaped mackerel

Claims (2)

[Claims] (1) A line switching means for switching between a connection with a communication line through an acoustic coupler and a connection with another communication line; a communication means that is connected to each communication line through this line switching means and performs information communication; and each of the above. storage means for storing communication characteristics suitable for each communication line; detection means for detecting connection of the acoustic coupler; and selecting a communication line based on the detection result of the detection means and controlling the line switching means. An information communication device comprising: a control means that connects to a selected communication line and controls the communication means by reading communication characteristics suitable for the selected communication line from the storage means. 2. The information communication device according to claim 1, further comprising display means for displaying the communication line selected by the control means and the dial method selected by the dial method switching means.