JPH0530260A - Data transmitter - Google Patents

Abstract

PURPOSE:To use the same software (ROM) even when a displayed character is made different from a destination. CONSTITUTION:An internal modem 111 is provided with a destination setting switch and the setting is implemented, e.g. at the manufacture. At application of power, a CPU 101 sets automatically a display character to a display device 12, an output level to a telephone line 5 and a standard or the like for dialing in response to the destination designation switch. The setting is implemented by providing a flag in a work RAM 104. In the case of a display of the display device 12, the CPU 101 controls the display device 12 in response to the state of the flag in the work RAM 104 to execute a display in response to the destination. In the case of dialing and an output to a telephone line 5, an internal modem 111 is controlled similarly in response to the destination. Even when the display character is made different depending on the destination, the same ROM is used, the management of the ROM is simplified and the manufacture process is made in common.

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 for transmitting still image data or the like using a telephone line.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a still image transmission system for transmitting still image data between still image transmission devices. The still image transmission device includes a portable type and a stationary type. A file device such as a magneto-optical disk device is connected to the stationary still image transmission device. For example, still image data is transmitted from a portable still image transmission device to a stationary still image transmission device via a telephone line.

[0003]

In the conventional portable still image transmission apparatus, even if the hardware is the same, the output level to the telephone line and the standard value of dialing can be changed to the destination (for example, Japan, USA, etc.). ) I had to adjust it separately.

At this time, the display of the operating state on the display unit is only in English, and cannot be displayed in Japanese. By preparing different software (ROM) for each destination, it is possible to display characters according to the destination.

In this case, since the types of ROMs increase,
It becomes difficult to manage the ROM, and the manufacturing process cannot be shared.

Therefore, according to the present invention, even when the displayed characters are different depending on the destination, the same software (RO
M) can be used.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a data transmission apparatus having a display section for transmitting data using a telephone line and displaying an operating state and the like, in accordance with designation of a destination. This is to automatically set the characters to be displayed on the screen and the setting items related to the transmission.

[0008]

By simply designating the destination, the characters displayed on the display unit 12 and the setting items relating to the transmission (the output level to the telephone line, the standard value of dialing, etc.) are automatically set. The same software (ROM) can be used even when the displayed characters are different depending on the destination.
The OM can be easily managed and the manufacturing process can be standardized.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of the still image transmission system of this example. In the figure, reference numeral 1 is a portable still image transmission device (SFU). FIG. 2 shows the operation panel surface of the transmission device 1, 11 is a power switch,
12 is a liquid crystal display, 13 is a function key, and 14 is a numeric key.

The liquid crystal display 12 displays an operation state display, various messages, key input instructions and the like. The function key 13 is operated based on the display on the liquid crystal display 12, whereby the transmission device 1 can be operated in various ways.

Returning to FIG. 1, reference numeral 2 is a stationary still image transmission device (DIH). Reference numeral 3 is a keyboard connected to the transmission device 2, and 4 is a magneto-optical disk device as a file device connected to the transmission device 2.

The transmission device 1 and the transmission device 2 are connected via an analog telephone line 5, and still image data is transmitted and communicated between the transmission device 1 and the transmission device 2.

FIG. 3 shows an example of the block structure of the still image transmission system, and the parts corresponding to those in FIG. 1 are designated by the same reference numerals. In the figure, a video deck 1a and a video camera 1b are connected to the transmission device 1 as a video signal input device, and a monitor 1c is connected as an output device thereof. Also, a video deck 2a and a video camera 2b are connected to the transmission device 2 as input devices for video signals,
A monitor 2c is connected as its output device.

The portable still image transmission apparatus 1 is constructed as shown in FIG. In the figure, a system bus 102 is connected to the CPU 101. A system ROM 103 in which processing programs for decoding (data expansion processing) and encoding (data compression processing) and other processing programs are stored, a work RAM 104 used for data processing, and date and time data are output to the system bus 102. The real time clock 105 is connected.

The system bus 102 has a buffer R.
Digital signal processor (D
SP) 107 is connected. The DSP 107 performs encoding (data compression processing) and decoding (data expansion processing) of still image data.

A frame memory 108 is connected to the system bus 102. In the frame memory 108,
Video deck 1a, video camera 1b, etc. (shown in FIG. 3)
The video signal from is converted into a digital signal by the A / D converter 109 and supplied as still image data. On the other hand, the still image data read from the frame memory 108 is converted into an analog signal by the D / A converter 110 and supplied to the monitor 1c (shown in FIG. 3).

The system bus 102 is an internal modem 1
Connected to the analog telephone line 5 via 11. Using this internal modem 111, still image data is transmitted and communicated with the transmission device 2. The transmission device 1 cannot be connected to a digital line (ISDN line).

A backup RAM 112 is connected to the system bus 102. This backup RAM
The setting parameters are saved in 112 at the time of power off,
When the power is turned on, the system is initialized with the set parameters.

A liquid crystal display 12 (shown in FIG. 2) is connected to the system bus 102 via a display interface 113.

A key switch 115 including a function key 13 and a numeric key 14 (shown in FIG. 2) is connected to the system bus 102 via a key switch interface 114.

On the other hand, the stationary still image transmission device 2 is constructed as shown in FIG. In the figure, 201 is a control for writing and reading on the magneto-optical disk device 4,
A CPU that controls transmission of still image data to the transmission device 1 and communication, controls transmission of still image data to an encoding or decoding processing unit, and the like.

A system bus 202 is connected to the CPU 201. A system ROM (EPROM) 203 storing processing programs and the like on the system bus 202,
A work RAM 204 used for data processing and a real-time clock 206 for outputting date and time data are connected.

A backup RAM 205 is connected to the system bus 202. This backup RAM
Setting parameters are saved in 205 when the power is off,
When the power is turned on, the system is initialized with the set parameters.

A serial controller 207 is connected to the system bus 202. The keyboard 3 (shown in FIG. 1) is connected to the system bus 20 via the controller 207.
Connected to 2.

A SCSI controller 208 is connected to the system bus 202. Magneto-optical disk device 4
Is connected to the system bus 202 via the controller 208.

A LAPD controller 209 for a control channel and a LAPB controller 210 for a data channel are connected to the system bus 202. When the system bus 202 is connected to a digital line (ISDN line), it is connected via these controllers 209 and 210. As described above, the transmission device 1
, Can be connected via a digital line, but can be connected to another transmission device of the same kind as the transmission device 2.

The system bus 202 is also connected to the analog telephone line 5 via the internal modem interface 211 and the internal modem 212. This internal modem 21
2 is used to transmit and communicate still image data with the transmission device 1.

A DTMF encoder / decoder 213 is connected to the system bus 202.

A CPU 221 controls encoding (data compression processing) and decoding (data expansion processing) of still image data (natural image data) and decoding and encoding processing of character and handwritten data.

A system bus 222 is connected to the CPU 221. The system bus 222 includes a system ROM (EPROM) 223 for storing processing programs,
A work RAM 224 used for data processing, a first-level kanji ROM 225, and a second-level kanji ROM 226 are connected.

A digital signal processor (DSP) 228 is connected to the system bus 222 via a DSP board interface 227. DSP228
Then, still image data encoding (data compression processing)
And decoding (data expansion processing) is performed.

A frame memory 229 is connected to the system bus 222. In the frame memory 229,
Video deck 2a, video camera 2b, etc. (shown in FIG. 3)
The video signal from is converted into a digital signal by the A / D converter 230 and supplied as still image data. On the other hand, the still image data read from the frame memory 229 is converted into an analog signal by the D / A converter 231, and supplied to the monitor 2c (shown in FIG. 3). In addition, DS
The P228 is also directly connected to the frame memory 229.

A shared RAM 241 and a bidirectional FIFO 242 are connected between the system buses 202 and 222. The shared RAM 241 stores data instructing decoding processing, encoding processing, etc. each time. In addition, using the bidirectional FIFO 242, the system bus 20
Transmission of still image data between 2 and 222 is performed.

A case of transmitting the still image data written in the frame memory 108 of the transmission apparatus 1 to the transmission apparatus 2 in the above configuration will be described.

The still image data written in the frame memory 108 is encoded (data compression processing) by the DSP 107, and then the telephone line 5 is transmitted via the internal modem 111.
Is supplied to the internal modem 212 of the transmission device 2 through the telephone line 5.

The still image data from the internal modem 212 is transferred to the internal modem interface 211 and the system bus 20.
2 is temporarily stored in the work RAM 204. Then, the still image data from the work RAM 204 is supplied to the DSP 228 via the system bus 202, the bidirectional FIFO 242, the system bus 222 and the DSP board interface 227 and is decoded (data expansion processing). The still image data decoded by the DSP 228 is written in the frame memory 229, and the resulting image is displayed on the monitor 2c.

Still image data from the work RAM 204 is supplied to the magneto-optical disk device 4 via the system bus 202 and the SCSI controller 208, and is recorded and stored in the magneto-optical disk (MO disk) as needed.

Next, the frame memory 229 of the transmission apparatus 2
The case of transmitting the still image data written in the transmission device 1 to the transmission device 1 will be described.

The still image data written in the frame memory 229 is encoded (data compression processing) by the DSP 228 and then system bus 222, bidirectional FIFO.
Telephone line 5 through 242, system bus 202, internal modem interface 211 and internal modem 212
Is supplied to the internal modem 111 of the transmission device 1 through the telephone line 5.

Still image data from the internal modem 111 is temporarily stored in the work RAM 104 via the system bus 102. The still image data from the work RAM 104 is stored in the system bus 102 and the buffer RAM 106.
The data is supplied to the DSP 107 via and is decoded (data expansion processing). The still image data decoded by the DSP 107 is written in the frame memory 108, and the resulting image is displayed on the monitor 1c.

Next, the case of transmitting still image data recorded on the magneto-optical disk of the magneto-optical disk device 4 to the transmission device 1 will be described.

The magneto-optical disk device 4 reads out still image data written on the magneto-optical disk, and the still image data is telephoned via the SCSI controller 208, system bus 202, internal modem interface 211 and internal modem 212. It is supplied to the line 5, and is supplied from the telephone line 5 to the internal modem 111 of the transmission device 1. The following is the same as the case of transmitting the still image data written in the frame memory 229 of the transmission device 2 to the transmission device 1.

Next, the frame memory 229 of the transmission apparatus 2
The case of recording and storing the still image data written on the magneto-optical disk will be described.

The still image data written in the frame memory 229 is encoded (data compression processing) by the DSP 228, and then the system bus 222, bidirectional FIFO.
The data is supplied to the magneto-optical disk device 4 via 242, the system bus 202, and the SCSI controller 208, and recorded and stored in the magneto-optical disk.

Further, a case where an image based on still image data recorded on the magneto-optical disk of the magneto-optical disk device 4 is displayed on the monitor 2c will be described.

The still image data recorded on the magneto-optical disk is read by the magneto-optical disk device 4, and the still image data is read by the SCSI controller 208, the system bus 202, the bidirectional FIFO 242, and the system bus 222.
And DS via DSP board interface 227
The data is supplied to P228 and decoded (data expansion processing). The still image data decoded by the DSP 228 is written in the frame memory 229, and the resulting image is displayed on the monitor 2c.

By the way, in the transmission device 1 of this example, when the power is turned on, the characters displayed on the display 12 (Japanese or English) and the output to the telephone line 5 are output depending on whether the destination is Japan or the United States. Levels, dialing standard values, etc. are linked and automatically set.

Internal modem 111 (see FIG. 4), not mentioned above
Is equipped with a destination designation switch for designating a destination, and the destination designation switch is set at the time of manufacturing, for example. At the time of power-on, the CPU 101 sets the characters displayed on the display 12, the output level to the telephone line 5, the standard value of dialing, etc. according to the setting of the destination designation switch.

This setting is performed by changing the state of the work RAM 104, which is provided with flags for display setting, output level setting, and dialing standard value setting, respectively.

FIG. 6 is a flow chart showing the setting operation at power-on. In the figure, first, the destination is judged from the switching position of the destination designation switch of the internal modem 111 (step 151).

When it is judged that the destination is Japan, the display on the display 12 is set to Japanese (step 15).
2), output level to telephone line 5 for Japan (-16d
Bm) (step 153), and the dialing standard value (make rate, etc.) is set for Japan (step 154).

On the other hand, when it is judged that the destination is the United States, the display on the display 12 is set to the English display (step 155), and the output level to the telephone line 5 is for the United States (-1).
0 dBm) (step 156) and the dialing standard value for the United States (step 15).
7).

FIG. 7 is a flow chart showing the operation after the above setting. When there is a display on the display unit 12 (step 161), the CPU 101 changes the display setting flag in the work RAM 104 according to the state of the flag.
The display 12 is controlled so that it is displayed in Japanese or English, and the display according to the destination is executed (step 16).
2).

When there is a dialing operation (step 163), the CPU 101 controls the internal modem 111 according to the state of the flag for setting the dialing standard value in the work RAM 104, and dialing according to the destination. Is executed (step 164).

When there is an output to the telephone line 5 (step 165), the CPU 101 causes the work RAM 10 to operate.
The internal modem 111 is controlled according to the state of the output level setting flag in No. 4, and output is performed with the output level according to the standard of the destination (step 166).

As described above, in the transmission apparatus 1 of this example,
For example, by designating the destination with the destination designation switch of the internal modem 111 during manufacturing,
Depending on the destination, the display characters (Japanese, English) on the display 12 and the output level to the telephone line 5 and the standard value of dialing are automatically set in association with each other.

Therefore, even when the displayed characters (language) are changed depending on the destination, the same software (ROM) is used.
Can be used, which simplifies the management of the ROM and has the advantage that the manufacturing process can be standardized.

Although the above-described embodiment is an example of a still image transmission device, the present invention can be similarly applied to other data transmission devices for transmitting data using a telephone line. Moreover, although an example in which the destinations are two countries, Japan and the United States, is shown, it is needless to say that the present invention can be applied to the case where the destinations are three or more countries.

[0060]

According to the present invention, the display character on the display unit and the setting item relating to the transmission are automatically set in association with each other only by designating the destination, so that the display character is changed depending on the destination. Sometimes, the same software (ROM) can be used, which simplifies the management of the ROM and has the advantage that the manufacturing process can be standardized.

[Brief description of drawings]

FIG. 1 is a diagram showing an overview of a still image transmission system.

FIG. 2 is a diagram showing an operation panel surface of a portable still image transmission device.

FIG. 3 is a block diagram showing a configuration of a still image transmission system.

FIG. 4 is a block diagram showing a configuration of a portable still image transmission device.

FIG. 5 is a block diagram showing a configuration of a stationary still image transmission device.

FIG. 6 is a flowchart showing a setting operation at power-on.

FIG. 7 is a flowchart showing an actual operation after the setting operation.

[Explanation of symbols]

 1 Portable still image transmission device 2 Stationary still image transmission device 3 Keyboard 4 Magneto-optical disk device 5 Analog telephone line 12 Liquid crystal display 101, 201, 221 CPU 104, 204, 224 Work RAM 107, 228 Digital signal processor 108, 229 frame memory 111,212 internal modem

Claims (1)

Claim: What is claimed is: 1. A data transmission device having a display section for transmitting data using a telephone line and displaying an operating state, etc., to the display section according to designation of a destination. A data transmission device characterized in that the display character of and the setting items relating to the transmission are automatically set in association with each other.