JPH0512341A - File device - Google Patents

Abstract

PURPOSE:To save data by generating a file name so that duplication is reduced. CONSTITUTION:A portable type still picture transmission device 1 and a stationary still picture transmission device 2 are connected through a telephone line 5. For example, when still picture data sent from the transmission device 1 to the transmission device 2 are saved on a disk device 4, a saving request is inputted on a keyboard 3. The transmission device 2 acquires a date and time from an internal real-time clock at the saving request and uses them to generate the file name. The still picture data are saved with the generated file name. The file name is determined only depending upon the date and time of the generation of the file and the duplication of the file name for one file system is reduced to speedily perform the saving operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file device such as a magneto-optical disk device.

[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, and this still image data (still image file) is transmitted.
Are saved to the file device as needed.

[0004]

The save request to the file device is input using, for example, a keyboard connected to the stationary still image transmission device. Similarly, the filename is also entered using the keyboard.

In this case, when the input file name is the same as the already existing file name, the already saved still image file is deleted. Therefore, a search is performed using the input file name, and it is confirmed that the file name does not exist. If the same file name already exists, you will have to enter the file name again from the keyboard.

Thus, when the operator inputs a file name using the keyboard, the ratio of duplication of file names becomes high. When the file names are duplicated, it is necessary to input the file name again as described above, and the search is performed again with the file name.

Therefore, when the file names are duplicated,
The time and effort for inputting the file name increase, the file name search amount also increases, and the save operation cannot be performed quickly.

Therefore, the present invention provides a file device which creates a file name so as to reduce duplication and saves data.

[0009]

The present invention has a file name creating means for creating a file name using at least one of date and time, and data is created with the file name created by this file name creating means. It is something to save.

[0010]

Since the file name is uniquely determined by the date and time of creation, it is less likely that the file name will be duplicated for one file system (disk or the like).
Therefore, it is possible to reduce the trouble of inputting the file name, reduce the file name search amount, and perform the save operation quickly.

[0011]

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.

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 the transmission device 1 and the transmission device 2 are connected.
The transmission or communication of still image data is performed between and.

FIG. 3 shows a block configuration of the still image transmission system, and the portions 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. A video deck 2a and a video camera 2b are connected to the transmission device 2 as a video signal input device, and a monitor 2c is connected as an output device thereof.

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. The system bus 102 stores a system ROM 103 in which processing programs for decoding (data expansion processing) and encoding (data compression processing) are stored, and a work R used for data processing.
An AM 104 and a real-time clock 105 that outputs date and time data are 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. The display 12 displays a file name, a function corresponding to the function key 13, and the like.

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 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.

Reference numeral 221 denotes a CPU which 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.
The data is temporarily stored in the work RAM 204 via 2. 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 saved (recorded) in the magneto-optical disk (MO disk) as needed. To be done.

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 the 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.

The 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 where the still image data recorded on the magneto-optical disk of the magneto-optical disk device 4 is transmitted 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 device 2
The case of saving (recording) the still image data written in (1) to 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 disc is read by the magneto-optical disc 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 apparatus 2 of this example, when a save request is input from the keyboard 3 (shown in FIG. 1) to save still image data to the magnetic disk of the magnetic disk apparatus 4, the file name is automatically set. Will be created and saved with that file name.

FIG. 6 shows the operation on the transmission device 2 side when a save request is input from the keyboard 3.

When a save request is input from the keyboard 3 (step 151), a file name is created using the date and time at that time (step 152), and the created file name is used to store the file in the magnetic disk device 4. Still image data (still image file) is saved (recorded) on the magnetic disk (step 153).

The creation of the file name in step 152 is specifically performed according to the flowchart shown in FIG.

First, the date and time are acquired from the date and time data output from the real-time clock 206 (step 161).

Here, the file name is formed by arranging seven characters A [0] to A [6] as shown in FIG.
Hereinafter, the seven characters A [0] to A [6] are sequentially determined.

First, the lowest digit of "year" is set to A [0] (step 162). Next, A [1] is obtained by converting "month" according to Table 1 (step 163).

[0056]

[Table 1]

Next, the conversion of "day" according to Table 1 is designated as A [2] (step 164). Next, a value obtained by converting “hour” according to Table 1 is set to A [3] (step 165). Next, set the two digits of "minute" to A [4] and A, respectively.
[5] (step 166). Next, set 0 to A [6]
(Step 167). A [6] is a serial number indicating the order of creation of files created in the same "minute".

Then, under the control of the CPU 201, a file search for the magneto-optical disk is performed with A [0] to A [6] determined as described above (step 168). In this case, the "directory entry" area of the magneto-optical disk is searched (FIG. 9 shows the recorded contents of the magneto-optical disk). When still image data is filed on the magneto-optical disk, the file name data is recorded and stored in this area.

If there is a file in step 168,
Increment A [6] by 1 (step 16
9), returning to step 168, A [0] to A [6] again
Search for a file on the magneto-optical disk. When the serial number is 10 or more, A [6] is one alphabetic character according to Table 1.

If there is no file in step 168,
The file name creation operation ends. That is, A [0] to A
The character string of [6] is determined as the file name.

For example, when the save request from the keyboard 3 is 12:26 on March 23, 1991, A
The character string of [0] to A [6] (however, when A [6] = 0) becomes "13NC260", which is determined as the file name.

Thus, in this example, the keyboard 3
When a save request is input, a file name is created from the date and time, and still image data is saved on the magneto-optical disk with the file name.

Therefore, since the file name is uniquely determined from the date and time, the file name rarely overlaps with one magneto-optical disk, and the file search amount can be reduced. Further, since the file name is automatically created, there is no need to input the file name from the keyboard 3, and the time and effort to input the file name can be reduced. As a result, the save operation can be performed quickly.

Further, since "month", "day", and "hour" are represented by one alphanumeric character in accordance with Table 1, the number of files can be set to a relatively small number of characters, in this example, seven characters. ..

Since the file name creation algorithm is relatively simple, the file creation date and time can be easily known from the file name. Therefore, the files can be sorted in the order of file creation by looking at the file names.

In the above embodiment, the example in which the file name is 7 characters is shown. However, when a file name of 8 characters or more is allowed, for example, the transmission device 1 (terminal) to which still image data is transmitted is transmitted. It is also possible to add a terminal ID (specific character string) or the like to the file name.

Further, in the above-mentioned embodiment, the file name is created using the date and time, but the same operation and effect can be obtained by using either the date or the time. ..

In the above embodiment, the file device connected to the stationary still image transmission device 2 is the magneto-optical disk device 4, but other file devices such as an optical disk device and a magnetic disk device may be used. The present invention can be similarly applied.

Further, in the above-described embodiment, the one in which the still image data is saved on the optical disk is shown, but the present invention can be similarly applied to the file device for saving other data.

[0070]

According to the present invention, since the file name is uniquely determined by the creation date and time, it is less likely that the file name will be duplicated for one file system (disk, etc.). The time and effort for inputting can be reduced, and the amount of file name search is also reduced, so that the save operation can be performed quickly. Also, the file name is related to the file creation date and time, and there is an advantage that it can be classified in the file creation order by looking at the file name.

[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 an operation (at the time of saving) of the stationary still image transmission apparatus.

FIG. 7 is a flowchart showing a routine for creating a fill name.

FIG. 8 is a diagram showing a character array of a file name.

FIG. 9 is a diagram showing the recorded contents of a magneto-optical disk (MO disk).

[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 101, 201, 221 CPU 104, 204, 224 Work RAM 105, 206 Real time clock 107, 228 Digital signal processor 108 , 229 Frame memory 111,212 Internal modem

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H04N 5/76 Z 7916-5C

Claims (1)

Claim: What is claimed is: 1. A file name creating means for creating a file name using at least one of date and time is provided, and data is saved with the file name created by the file name creating means. A file device characterized by the above.