JPH04324121A - Control system of rewriting optical disk processing device - Google Patents

Abstract

PURPOSE:To realize a rewriting optical disk device with a high speed and large capacity by constituting, controlling and performing the reading/writing operations of, a fixing type rewriting optical disk device and an exchanging type rewriting optical disk device. CONSTITUTION:The writing data from a host 1 is written in an arbitrary device of optical disk devices 3-1 to 3-n, and the data is read from an arbitrary device of fixing type rewriting optical disk devices 3-1 to 3-n as the reading data to the host device 1 and is stored. This stored data is written in an arbitrary device of exchanging type rewriting optical disk devices 4-1 to 4-m. The data is read from an arbitrary device of the exchanging type rewriting optical disk device 4-1 to 4-m and is stored. This stored data is written in an arbitrary device of the fixing type rewriting optical disk devices 3-1 to 3-n.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control system for a rewritable optical disc processing apparatus.

0002

[Prior Art] A conventional rewritable optical disc processing device is
A replaceable rewritable optical disk device that is slow but has virtually unlimited capacity and a fixed rewritable optical disk device that is high speed but has limited capacity are configured separately.

0003

[Problems to be Solved by the Invention] In the above-mentioned conventional rewritable optical disk processing device, the replaceable type rewritable optical disk device and the fixed type rewritable optical disk device were configured separately. The problem was that it could not be achieved.

0004

[Means for Solving the Problems] The control method of the rewritable optical disk processing device of the present invention includes a first write operation in which write data from a host is written to any one of a plurality of fixed type rewritable optical disk devices. means for reading read data to the host from any one of the plurality of fixed type rewritable optical disk devices, and data from any one of the plurality of fixed type rewritable optical disk devices. a first storage means for reading and accumulating the data; a second writing means for writing the stored data to any one of the plurality of replaceable rewritable optical disk devices; a second storage means for reading and storing data from any one of the devices; and a third writing means for writing the stored data to any one of the plurality of fixed type rewritable optical disk devices. It is equipped with the following.

[0005]

[Operation] In the present invention, a fixed type rewritable optical disk device and a replaceable type rewritable optical disk device are configured and controlled,
Perform read/write operations.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, 1 is a host, and 2 is a rewritable optical disc control device that is connected to the host 1 and exchanges various information. 3-1, 3-2...3-n are fixed type rewritable optical disk devices, 4-1, 4-2...4-m
is a replaceable rewritable optical disc device, which is configured to exchange various information with the rewritable optical disc control device 2. 101, 102...107 are signal lines.

FIG. 2 is a block diagram showing an example of the configuration of the rewritable optical disc control device 2 in FIG. 1. As shown in FIG. In FIG. 2, the same reference numerals as those in FIG. Replacement optical disk control circuit,
25 is a microprocessor that controls these. 121, 122...125 are signal lines.

The host control circuit 20, host buffer circuit 21, fixed type rewritable optical disk control circuit 22, and microprocessor 25 in FIG.
is a writing means for writing write data from the host 1 to any one of the plurality of fixed type rewritable optical disk devices 3-1 to 3-n, and a fixed type write means for writing the read data to the host 1 to any one of the plurality of fixed type rewritable optical disk devices 3-1 to 3-n. Replacement optical disc device 3-1
3-n constitutes a reading means for reading from any device. Further, the fixed type rewritable optical disk control circuit 22, the device buffer circuit 23, and the microcomputer 25 read and store data from any one of the plurality of fixed type rewritable optical disk devices 3-1 to 3-n. constitutes a means. The device buffer circuit 23, the replaceable rewritable optical disk control circuit 24, and the microcomputer 25 transfer the accumulated data to the replaceable rewritable optical disk devices 4-1 to 4-4.
-m constitutes a writing means for writing to an arbitrary device, and an accumulating means for reading and accumulating data from an arbitrary device among the plurality of replaceable rewritable optical disk devices 4-1 to 4-m. Further, the fixed type rewritable optical disk control circuit 22, the device buffer circuit 23, and the microprocessor 25 write the accumulated data to any one of the plurality of fixed type rewritable optical disk devices 3-1 to 3-n. It constitutes a writing means.

Next, the operation of the embodiment shown in FIGS. 1 and 2 will be explained. First, in FIG. 1, the rewritable optical disk control device 2 is connected to the host 1 by receiving commands,
A fixed type rewritable optical disk device 3- reports the status, receives written data, and sends read data.
1 to 3-n send commands, receive status, send read data, and receive read data, and replaceable rewritable optical disk devices 4-1 to 4-m send commands, receive status, and Sends write data and receives read data. The signal line 101 in FIG. 1 connects write data, read data,
Signal lines 102, 103, and 104 are used to transmit and receive commands and status, and signal lines 102, 103, and 104 are used to transfer write data, read data, and Shows signal lines for sending and receiving commands and status. Signal line 105, 106, 1
Reference numeral 07 indicates a signal line for transmitting and receiving write data, read data, commands, and status between the rewritable optical disc control device 2 and the replaceable rewritable optical disc devices 4-1 to 4-m.

Next, in FIG. 2, the host control circuit 20
sends write data from host 1 in FIG. 1 to host buffer circuit 21, sends read data from host buffer circuit 21 to host 1, and sends commands from host 1 to microcomputer 25. Then, the status from this microcomputer 25 is sent to the host 1, and the host buffer circuit 21 accumulates the write data from the host control circuit 20 and sends it to the fixed type rewritable optical disk control circuit 22. Data read from the control circuit 22 is accumulated and sent to the host control circuit 20. This fixed type rewritable optical disk control circuit 22 selects any fixed type rewritable optical disk device, sends write data from the host buffer circuit 21 and device buffer circuit 23 to any fixed type rewritable optical disk device, and selects any fixed type rewritable optical disk device. The read data from the fixed type rewritable optical disk device is transferred to the host buffer circuit 21.
and sends it to the device buffer circuit 23. This device buffer circuit 23 accumulates read data from the fixed type rewritable optical disk control circuit 22 and the replaceable type rewritable optical disk control circuit 24, and transfers it to the fixed type rewritable optical disk control circuit 22 and the replaceable type rewritable optical disk control circuit 24. Send write data. This replaceable rewritable optical disc control circuit 24 selects any replaceable rewritable optical disc device, sends the write data from the device buffer circuit 23 to any replaceable rewritable optical disc device, and selects any replaceable rewritable optical disc device. Data read from the optical disc device is sent to the device buffer circuit 23. The microcomputer 25 then controls the host control circuit 2
0, the host buffer circuit 21, fixed type rewritable optical disk control circuit 22, device buffer circuit 23, and fixed type rewritable optical disk control circuit 24 are controlled by commands, states, etc.

3, FIG. 4, FIG. 5, FIG. 6, FIG. 7 and FIG. 8
is a flowchart for explaining the operation of FIGS. 1 and 2, and each step 101-107, 201-206, 301-3
10 and 401 to 410 each execute a predetermined process.

Next, using the block diagrams of FIGS. 1 and 2,
The control method of the rewritable optical disc processing apparatus of the present invention will be explained with reference to the flowcharts of FIGS. 3 to 8 showing write and read operations. 3 shows a write operation in which write data is written from the host 1 to the fixed type rewritable optical disk device, FIG. 4 shows a read operation in which read data to the host 1 is read from the fixed type rewritable optical disk device, and FIG. , FIG. 6 shows a read/write operation for writing data read from a fixed type rewritable optical disk device to a replaceable type rewritable optical disk device, and FIGS. 7 and 8 show data read from a replaceable type rewritable optical disk device and written to a fixed type rewritable optical disk device. 3 illustrates a read/write operation to write to a device.

First, a read/write operation between the host 1 and the fixed type rewritable optical disk device will be described, and a write operation in which write data from the host 1 is written to the fixed type rewritable optical disk device will be described. When the microcomputer 25 receives a write command from the host 1 via the host control circuit 20 (step 101), the microcomputer 25 secures a write area using its own management information and writes the write area that the fixed rewritable optical disk control circuit 22 has. The fixed type rewritable optical disk device that performs writing is determined based on the status information of the fixed type rewritable optical disk device, a write command is issued to the fixed type rewritable optical disk control circuit 22, and the host control circuit 20 and host buffer circuit 21 are placed in the writing state. (Step 102), the host buffer circuit 21 receives the write data via the host control circuit 20 and stores it (Step 104). Then, the fixed type rewritable optical disk control circuit 22 that has received the write command selects the fixed type rewritable optical disk device specified by the microcomputer 25 and sends the write command (step 103). The rewritable optical disc device detects the write start position requested by the received write command, and notifies the fixed rewritable optical disc control circuit 22 of the detection (step 105). The fixed type rewritable optical disk control circuit 22, which has received the notification of the detection of the write start position, transfers the accumulated write data to the fixed type rewritable optical disk device if write data is accumulated in the host buffer circuit 21. Therefore, the fixed type rewritable optical disk device writes the received write data to the rewritable optical disk medium (step 107).

Next, a read operation for reading read data to the host 1 from the fixed type rewritable optical disk device will be explained with reference to FIG. The microcomputer 25 is
When a read command is received from the host 1 via the host control circuit 20 (step 201), the existence of a read area is confirmed based on its own management information, and the fixed write area of the fixed type rewritable optical disk control circuit 22 is read. A fixed type rewritable optical disk device that performs reading is determined based on the status information of the rewritable optical disk device, a read command is issued to the fixed type rewritable optical disk control circuit 22, and the host control circuit 20 and host buffer circuit 21 are placed in a read state. (Step 202). Then, the fixed type rewritable optical disc control circuit 22 that received this read command,
Since the microcomputer 25 selects the specified fixed type rewritable optical disk device and sends a read command (
Step 203) The selected fixed type rewritable optical disk device detects the read start position requested by the received read command, reads the read data, and transfers the read data to the fixed type rewritable optical disk control circuit 20. (step 204). The fixed type rewritable optical disk control circuit 22 that has received this read data transfers the read data to the host buffer circuit 21, so that the host buffer circuit 21
The read data is accumulated (step 205), and the host control circuit 20 transfers the accumulated read data to the host 1 (step 206).

Next, read/write operations between the fixed type rewritable optical disk device and the replaceable type rewritable optical disk device will be explained with reference to FIGS. 5 and 6. First, a read/write operation for reading data from a fixed type rewritable optical disk device and writing data to a replaceable type rewritable optical disk device will be described. When the microcomputer 25 receives a store command from the host 1 via the host control circuit 20 (step 301), it confirms the existence of a read area based on its own management information and stores the read area in the fixed type rewritable optical disk control circuit 22. A fixed type rewritable optical disk device that performs reading is determined based on the status information of the fixed type rewritable optical disk device, a read command is issued to the fixed type rewritable optical disk control device 22, and the device buffer circuit 23 is put into a writing state (step 302). The fixed type rewritable optical disk control circuit 22 that has received this read command selects the fixed type rewritable optical disk device specified by the microcomputer 25 and sends the read command (step 303). The optical disc device detects the read start position requested by the received read command, reads the read data, and transfers the read data to the fixed type rewritable optical disc control circuit 22 (step 304). Then, the fixed type rewritable optical disk control circuit 22 that has received the read data transfers the read data to the device buffer circuit 23, so the device buffer circuit 23 accumulates the read data (step 305).

Next, when the necessary read data is accumulated in the device buffer circuit 23, the microcomputer 25 secures a write area based on its own management information, and uses the exchangeable rewritable optical disk control circuit 24 to secure a write area. A replaceable rewritable optical disc device for writing is determined based on the status information of the rewriteable optical disc device, a write command is issued to the replaceable rewritable optical disc control circuit 24, and the device buffer circuit 23 is placed in a read state (step 306). . The replaceable rewritable optical disc control circuit 24, which has received this write command, selects the replaceable rewritable optical disc device specified by the microcomputer 25 and sends the write command (step 30).
7) The selected replaceable rewritable optical disc device detects the write start position requested by the received write command, and notifies the replaceable rewritable optical disc control circuit 24 of the detection (step 308). The replaceable rewritable optical disc control circuit 24, which has received the notification of the detection of the writing start position, transfers the read data from the fixed rewritable optical disc device stored in the device buffer circuit 23 to the replaceable rewritable optical disc as write data. The exchangeable rewritable optical disk device writes the received write data to the rewritable optical disk medium (step 310).
).

Next, FIGS. 7 and 8 show read/write operations for reading data from a replaceable rewritable optical disk device and writing data to a fixed rewritable optical disk device.
Explain with reference to. When the microcomputer 25 receives a restore command from the host 1 via the host control circuit 20 (step 401), the microcomputer 25 confirms the existence of a read area based on its own management information, and updates the rewriteable optical disk control circuit 24 with the read area. Determines the replaceable rewritable optical disc device that performs reading based on the status information of the replaceable rewritable optical disc device, issues a read command to the replaceable rewritable optical disc control circuit 24, and puts the device buffer circuit 23 into a writing state ( Step 402
). Then, the replaceable rewritable optical disc control circuit 24 that has received this read command selects the replaceable rewritable optical disc device specified by the microcomputer 25 and sends a read command (step 403). The rewritable optical disk device detects the read start position requested by the received read command, reads out the read data, and the exchangeable rewritable optical disk control circuit 24 transfers the read data to the device buffer circuit 23. Therefore, the device buffer circuit 23 accumulates the read data (step 405).

When the necessary read data is accumulated in the device buffer circuit 23, the microcomputer 25 secures a write area based on its own management information, and uses the fixed type rewritable optical disk control circuit 22 to secure a write area. A fixed type rewritable optical disk device for writing is determined based on the status information of the rewritable optical disk device, a write command is issued to the replaceable type rewritable optical disk control circuit 22, and the device buffer circuit 23 is placed in a read state (step 406). The fixed type rewritable optical disk control circuit 22, which has received this write command, selects the fixed type rewritable optical disk device specified by the microcomputer 25 and sends the write command (step 40).
7) The selected fixed type rewritable optical disc device detects the write start position requested by the received write command, and notifies the fixed type rewritable optical disc control circuit 22 of the detection (step 408). The fixed type rewritable optical disc control circuit 22, which has received the notification of the detection of the writing start position, transfers the read data from the replaceable rewritable optical disc device stored in the device buffer circuit 23 to the replaceable rewritable optical disc device as write data. The fixed type rewritable optical disk device writes the received write data to the rewritable optical disk medium (step 410).
).

Although not particularly shown in FIGS. 3 to 8, there are a host 1, a host control circuit 20, a host buffer circuit 21, a fixed type rewritable optical disk control circuit 22, a device buffer circuit 23, and a replaceable type rewritable optical disk. In the path of the control circuit 24 and the replaceable rewritable optical disk device,
Reading/writing can be performed between the host 1 and the replaceable rewritable optical disk device.

[0020]

As explained above, the present invention can perform high-speed and large-capacity writing by configuring and controlling a fixed type rewritable optical disk device and a replaceable type rewritable optical disk device to perform read/write operations. This has the effect of realizing a replacement optical disc device.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration example of the rewritable optical disc control device in FIG. 1;

FIG. 3 is a flowchart for explaining the operation of FIGS. 1 and 2;

FIG. 4 is a flowchart for explaining the operation of FIGS. 1 and 2;

FIG. 5 is a flowchart for explaining the operation of FIGS. 1 and 2;

FIG. 6 is a flowchart for explaining the operation of FIGS. 1 and 2;

FIG. 7 is a flowchart for explaining the operation of FIGS. 1 and 2;

FIG. 8 is a flowchart for explaining the operation of FIGS. 1 and 2;

[Explanation of symbols]

1 Host 2 Rewritable optical disk control device 3-1 to 3-n Fixed type rewritable optical disk device 4-
1-4-m Replaceable rewritable optical disk device 20
Host control circuit 21 Host buffer circuit 22 Fixed type rewritable optical disk control circuit 23 Device buffer circuit 24 Replaceable type rewritable optical disk control circuit 25 Microcomputer

Claims (1)

[Claims] 1. A first writing means for writing write data from a host to any one of the plurality of fixed type rewritable optical disk apparatuses, and a first writing means for writing data to be read from the host to any one of the plurality of fixed type rewritable optical disk apparatuses. a reading means for reading data from any one of the rewritable optical disk devices; a first storage means for reading and accumulating data from any one of the plurality of fixed rewritable optical disk devices; a second writing means for writing into any one of the plurality of replaceable rewritable optical disk devices; and a second storage for reading and accumulating data from any one of the plurality of replaceable rewritable optical disk devices. and third writing means for writing the accumulated data to any one of the plurality of fixed type rewritable optical disk devices. .