JPS5892166A - Write control system in storage device - Google Patents

Abstract

PURPOSE:To increase an amount of storage of data to a medium, without requiring the provision of a file to a stored data, by using a write clock formed in response to the result of counting of compressed data outputted from a code section. CONSTITUTION:When a main scanning time of an input data D from a scanner 11 in N seconds, a data Dc is tentatively stored in a buffer 21B by taking a pickup speed of the compressed data Dc from a code section 21A as a speed to be read out entiely within the N seconds, and a counter 21C counts the number of bits of the data Dc with a counter 21C. The content of the buffer 21B and the counter 21C is transferred to a buffer 21D and a latch 21E through the line synchronism of the main scanning, the buffer 21B and the counter 21C are reset for the storage of the compressed data of the next line and the count of the compressed bit number. Through M-bit being the content of the latch 21E, a generator 21F forms a clock in M/N-bit and the content of the buffer 21D is stored in a main memory 22.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a write control method in a storage device, and in particular, in a storage device that compresses document information tube data and stores it in a storage medium. The present invention relates to a write control method for storing information on a storage medium.

Conventionally, for example, a facsimile machine (hereinafter referred to as "SIM I") K is used for storage and playback equipment (hereinafter referred to as "8AFJ").
That's what it means. ) In devices with a storage function such as
Data compression mk is performed when the calligraphy information # is stored, and k is used to restore the original calligraphy information when outputting.

A data compression/decompression device (hereinafter referred to as "DOR") exclusively for 8A]F was used, which caused an increase in the cost of 8M1.

On the other hand, a method using 15X@0DOR without providing DOR can also be considered, but in this method, even during storage, unnecessary fills are added and the result is that the storage medium is There was a problem that usage efficiency was reduced.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to eliminate the above-mentioned period Ia! of the write control method in the conventional storage device. To provide a write control method in which only compressed data is stored in a storage medium without adding a fill in a storage device that compresses calligraphy information and writes it on a storage medium. There is a particular thing.

The above-mentioned object of the present invention is to provide a storage device for reading calligraphic information, compressing the data, and storing the compressed data in a storage medium, including means for temporarily storing the compressed data and means for counting the compressed data. An lEm medium write clock having a speed proportional to the number of compressed data is created from the output of the counting means and the line synchronization signal, and a corresponding one is stored in the temporary storage means by the write clock. The compressed data is written to the storage medium using a write control method.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed explanation will be given below based on an embodiment of the present invention.

FIG. 1 is a diagram showing a connection configuration between FAX and SAP in transmission mode. In the figure, 10 is a FAX, 11 is a scanner, 12 is an image processing device (hereinafter referred to as "vpaJ"), and 3 is an IFAX side DOR (hereinafter referred to as "DOIL").
”. ), 14 is a communication system (hereinafter referred to as "00U")
That's what it means. ), 15 is a modem device (hereinafter referred to as "MOD"), 16 is a network control device (hereinafter referred to as [aotrj), 20 is SAP, and 21 is sAy@DaR.
(hereinafter referred to as [D OR, J), 22 is the main memory 0 When operating as a FAX, switch 8 □ H a1, S
, are connected to a2 respectively, and the signal flow is as follows:
Scanner lIK reads the original t-, converts it into an electric signal in VPU 12, and sends it to al of switch S□.

The calligraphy information is input to DOR, 13 through a2 of S.

FIG. 2 shows an outline of the configuration of naR,13, and FIG. 3 shows its input and output waveforms.

The drawing information inputted to the DOR, 13 is encoded by the encoder 13, and as shown in FIG. 3, the drawing information A is compressed like a datum and output. Thereafter, the fill adding section 13B performs a fill (diagonal 1M section M') based on the relationship between the input/output speed and the transmission speed.

B') is added and output to a otr14, oou1
The data is transmitted under the transmission control of MOD15.4. N0U16
Sent via . In this way, in normal transmission, fills are added according to necessity and transmission is performed.

The operation when storing data in the 5AP 20 will be described below.

Switch S1 to bl and write from VPU12.
Input information @ D Q R821.

FIG. 4 is a diagram illustrating the details of the configuration of the DOR 21 and its operation, and FIG. 6 is a diagram showing all of its input and output waveforms.

Main scanning time of data manual (D) from scanner 11 is N
sec, the compressed data D is set as the speed at which the compressed data (Do) output from the encoding section 21A can be read out completely within the main scanning time N seconds. is temporarily stored in the buffer α) 21BK, and 1 data D is stored by the counter 210. Count the number of bits. Next, -t, the contents of the IE buffer α) 21B and the counter 21a are transferred to the buffer (2) 21D and the latch 21z by line synchronization of all main redundancies, and the buffer α) 21B and the counter 210 are reset;
When storing the contents of the buffer 12) 211), which stores the compressed data of the next line and counts the number of compressed bits, in the main memory 22, the contents of the latch 21m (this is
M” bit. )k, click generator 211F
A main memory write clock of M/N bps is created at , and the contents of the buffer (2) 21D are stored in the main memory 22 using this clock.

As is clear from FIG.
DOR, 21 in system 1 uses a write clock created in response to the count result of compressed data output from code section 21m, so it is not necessary to insert a fill when writing compressed data to main memory. This has the effect of eliminating the need for an expensive fill adding section. Also, this allows
It is also possible to significantly increase the amount of data stored in the main memory.

It goes without saying that the present invention is not limited to the above embodiments.

As described above, according to the present invention, reading calligraphy information,
In a storage device that compresses data and stores it on a storage medium, the means for temporarily storing the compressed data and the means for counting the compressed data are generally connected to the output of the counting means and the line synchronization signal. A storage medium write clock having a degree proportional to the number of compressed data is created from the above, and all corresponding compressed data stored on the medium are written by the write clock. This eliminates the need to add the entire fill to the stored data, which has the remarkable effect of eliminating the need for a fill adding section and making it possible to increase the number of devices for storing data on the storage medium. It is possible to realize a write control method having the following.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the connection configuration between FAX and SAy showing an embodiment of the present invention, Figure 2 is a diagram showing the configuration of DORA,
Figure 3 shows the input and output waveforms, and Figure 4 shows the DOR8.
FIG. 6 is a diagram showing an example of the configuration, and FIG. 6 is a diagram showing its input and output waveforms. io:FAX%11:Scanner, 12:vpuS13:
DOR,, 14: OOU, 15: MOD, 16:
NOU. 20: SAF, 21: DOR, 22: Main memory, 21A: Code section, 21B: Buffer α), 210
:Counter, 21D:X7A■, 211:Latch,
217: Clock generator. Patent applicant Rico Co., Ltd. - Figure 2 Figure 3 Figure 4 Figure 1

Claims (1)

[Claims] A storage device that reads calligraphic information, compresses the data, and stores it in a storage medium is provided with means for temporarily storing all the compressed data and means for counting the compressed data, and a line between the output of the counting means and the line is provided. From the synchronization signal, create a storage medium write block having a speed of 1 proportional to the number of compressed data, and store the corresponding compressed data stored in the temporary storage means by the writing process. A write control method in a storage device characterized in that writing is performed on a medium.