KR20100039504A - Optical disc drive and method for setting multi-firmware thereof - Google Patents

Optical disc drive and method for setting multi-firmware thereof Download PDF

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Publication number
KR20100039504A
KR20100039504A KR1020080098487A KR20080098487A KR20100039504A KR 20100039504 A KR20100039504 A KR 20100039504A KR 1020080098487 A KR1020080098487 A KR 1020080098487A KR 20080098487 A KR20080098487 A KR 20080098487A KR 20100039504 A KR20100039504 A KR 20100039504A
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KR
South Korea
Prior art keywords
firmware
atapi
vendor
recorded
host
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KR1020080098487A
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Korean (ko)
Inventor
정영훈
Original Assignee
주식회사 히타치엘지 데이터 스토리지 코리아
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Priority to KR1020080098487A priority Critical patent/KR20100039504A/en
Publication of KR20100039504A publication Critical patent/KR20100039504A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/606—Protecting data by securing the transmission between two devices or processes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Abstract

The present invention relates to an optical disc drive and a multi firmware setting method according to the present invention. For example, the multi-Firmware corresponding to a plurality of different functions or buyers is stored in the optical disc drive. Then, the developer develops an optical disc drive by performing an interface with an arbitrary host through an ATAPI command and setting the multi-firmware to a firmware corresponding to a unique function or a buyer suitable for the host. Since it is not necessary to separately develop the firmware for each host or the function of each host, it is possible to efficiently minimize the time and effort required for the firmware development of the optical disk drive.

Description

Optical disc drive and method for setting multi-firmware

The present invention relates to an optical disc drive capable of reading, reproducing or recording data recorded on various types of optical discs such as CDs, DVDs, BDs, and the like, for example.

In general, an optical disc drive (ODD) capable of reading, reproducing or recording data recorded on an optical disc is used in connection with various types of hosts such as, for example, a personal computer (PC).

In addition, the optical disk drive (ODD) and the host (Host), for example, by using a well-known Advanced Technology Attachment Interface (ATAPI) command, to perform the mutual interface operation.

On the other hand, in the optical disk drive, a firmware suitable for the host is set. For example, a developer who develops an optical disk drive meets the requirements of various buyers such as a vendor selling a host. The firmware may be developed, or firmware corresponding to each function supported by the host may be developed and set in the optical disk drive.

However, to this end, it is necessary to develop firmware suitable for the requirements of various different buyers, and to develop firmware for each function supported by different hosts. It takes a long time.

The present invention stores multi-Firmware corresponding to a plurality of different functions or buyers in an optical disk drive, and then stores the multi-firmware on the host through an interface with the host. It is an object of the present invention to provide an optical disk drive and a multi-firmware setting method according to the present invention.

The multi-firmware setting method of the optical disc drive according to the present invention includes a step of storing the multi-firmware corresponding to a plurality of different functions or buyers in the optical disc drive; And setting the multi-firmware to firmware corresponding to a unique function or a buyer of the corresponding host through an interface with any one host.

In the multi-firmware, Vendor Specific and Reserved Area of the Atapi BB Command (ATAPI_BBh_Command) are recorded with indicators indicating recording restriction and reproduction restriction and speed set information indicating different speeds. Characterized in that,

In addition, on / off information of different buyers is recorded in a part of the reserved area of the ATAPI_Vendor_Specific_Page of the multi-firmware.

In addition, in the part of the free area (Reserved) of the atapi vendor vendor page (ATAPI_Vendor_Specific_Page) of the multi-firmware, it is characterized in that the support information for each function is recorded,

In addition, on / off information of different buyers is recorded in a part of the spare area of the atapi vendor command (ATAPI_Vendor_Command) of the multi-firmware.

In addition, information on whether to support each function is recorded in a part of the spare area of the atapi vendor command (ATAPI_Vendor_Command) of the multi-firmware.

In addition, an optical disk drive according to the present invention, connection means for connecting and connecting to any host; Storage means for storing multiple firmware corresponding to a plurality of different functions or buyers; And control means for setting the multi-firmware to firmware corresponding to a unique function or a buyer of the host through an interface with a host connected and connected through the connection means.

In the multi-firmware, Vendor Specific and Reserved Area of the Atapi BB Command (ATAPI_BBh_Command) are recorded with indicators indicating recording restriction and reproduction restriction and speed set information indicating different speeds. Characterized in that,

In addition, on / off information of different buyers is recorded in a part of the reserved area of the ATAPI_Vendor_Specific_Page of the multi-firmware.

In addition, in the part of the free area (Reserved) of the atapi vendor vendor page (ATAPI_Vendor_Specific_Page) of the multi-firmware, it is characterized in that the support information for each function is recorded,

In addition, on / off information of different buyers is recorded in a part of the spare area of the atapi vendor command (ATAPI_Vendor_Command) of the multi-firmware.

In addition, information on whether to support each function is recorded in a part of the spare area of the atapi vendor command ATAPI_Vendor_Command in the multi-firmware.

In the optical disk drive and the multi-firmware setting method according to the present invention, for example, after storing the multi-Firmware corresponding to a plurality of different functions (Function) or buyer (Buyer), in the optical disk drive A developer who develops an optical disc drive by performing an interface with an arbitrary host through an ATAPI command and setting the multi-firmware to a firmware corresponding to a unique function or a buyer suitable for the host, Since the firmware of each host function or buyer does not need to be developed separately, it is possible to efficiently minimize the time and effort required to develop the firmware of the optical disk drive.

Hereinafter, exemplary embodiments of an optical disc drive and a multi firmware setting method according to the present invention will be described in detail with reference to the accompanying drawings.

First, the present invention can be applied to various types of optical disc drives capable of reading, reproducing or recording data recorded on an optical disc such as, for example, a CD, a DVD, and a BD.

In addition, in the optical disk drive to which the present invention is applied, for example, as shown in FIG. 1, the optical disk 10, the optical pickup 11, the recording and reproducing section 12, the amppack codec 13, and the microcomputer 14 ), The memory 15, and the interface unit 16 may be included.

The interface unit 16 performs an interface by using an ATAPI command with a host 200 such as a personal computer (PC), and the memory 15 includes a flash memory. Alternatively, a nonvolatile memory such as EEPROM may be used.

The memory 15 stores multi-Firmware corresponding to a plurality of different functions or buyers suitable for various hosts connected and connected through the interface unit 16. .

In addition, when the microcomputer 14 performs a system booting operation in a state in which any one host 200 is connected and connected through the interface unit 16, through the interface with the host 200, Set the multi-firmware stored in the memory 15 to firmware suitable for a unique function supported by the host, or set to firmware suitable for a buyer condition of a vendor selling the host. Done.

For example, in the first embodiment according to the present invention, as shown in Fig. 2, in the Vendor Specific field of the ATAPI BB Command (ATAPI_BBh_Command), which is a previously defined communication protocol, the write limit (Write) is written. An indicator indicating a limit and a read limit is recorded by 1 bit, respectively.

In addition, speed set information indicating different speeds is recorded in a three-bit reserved area contiguous to the vendor characteristic field. For example, the indicator indicates a value of '01'. In addition, when the speed set information has a value of '100', the playback speed is limited to 48 times speed.

Further, when the indicator has a value of '10' and the speed set information has a value of '010', the playback speed is limited to 32 times the speed, and the indicator sets the value of '11'. In addition, when the speed set information has a value of '100', the recording speed and reproduction speed are limited to 48 times.

Accordingly, the microcomputer 14 performs a corresponding operation when any one of the indicators and the speed set of the multi firmware are enabled through an interface with the host, so that the microcomputer 14 performs a corresponding operation. It is possible to set the firmware suitable for the function or buyer condition.

On the other hand, in the second embodiment according to the present invention, on / off information for different buyers is recorded in a part of a reserved area in the atapi vendor property page ATAPI_Vendor_Specific_Page, which is a communication protocol that has been previously prescribed. .

For example, as shown in Fig. 3, on the first bit (0) of the free area of the fifth byte in the Atapi vendor characteristic page where the '2Fh' page code is recorded, the buyer B is turned on. One bit value indicating on / off and one bit value indicating on / off of the buyer A are recorded in the second bit (1).

On the other hand, when the 1-bit value indicating on / off of the buyer A is '1' and the 1-bit value indicating on / off of the buyer B is '0', the microcomputer 14 indicates the host. The multi-firmware is set to firmware suitable for the buyer A by performing an interface with the.

On the other hand, when the 1-bit value indicating the on / off of the buyer A is '0' and the 1-bit value indicating the on / off of the buyer B is '1', in the microcomputer 14, the host The multi-firmware is set to firmware suitable for the buyer B by performing an interface with the.

Accordingly, in the microcomputer 14, the multi-firmware is set to firmware suitable for the host of the buyer A or the firmware suitable for the host of the buyer B through the interface with the host. It is possible to set the firmware suitable for the condition.

On the other hand, in the third embodiment according to the present invention, support information for each function is recorded in a part of the reserved area in the ATAPI vendor property page ATAPI_Vendor_Specific_Page, which is a communication protocol that has been previously prescribed. do.

For example, as illustrated in FIG. 4, the function E supports the first bit (0) of the free area of the fifth byte in the Atapi vendor characteristic page in which the '2Fh' page code is recorded. A 1-bit value indicating whether or not, a second bit 1, a 1-bit value indicating whether or not the function D is supported, and a third bit 2, a 1-bit value indicating whether or not the function C is supported is recorded.

In addition, a 1-bit value indicating whether the function B is supported in the fourth bit 3 and a 1-bit value indicating whether the function A is supported in the fifth bit 5 are recorded. All of the values indicating whether or not may be set to '0' or at least one or more of '1'.

Accordingly, the microcomputer 14 sets the multi-firmware to the firmware suitable for the functions A to E through the interface with the host to set the firmware corresponding to the unique functions supported by the host. Therefore, setting to firmware suitable for the unique function of the host becomes possible.

On the other hand, in the fourth embodiment according to the present invention, on / off information of different buyers is recorded in a part of a reserved area in the ATAPI_Vendor_Command, which is a communication protocol that has been previously prescribed.

For example, as shown in FIG. 5, the first bit (0) of the free area of the second byte in the Atapi vendor command in which the 'Fxh' OP Code is recorded is turned on / off of the buyer B. One bit value indicating off and one bit value indicating on / off of the buyer A are recorded in the second bit 1.

On the other hand, when the 1-bit value indicating on / off of the buyer A is '1' and the 1-bit value indicating on / off of the buyer B is '0', the microcomputer 14 indicates the host. The multi-firmware is set to firmware suitable for the buyer A by performing an interface with the.

On the other hand, when the 1-bit value indicating the on / off of the buyer A is '0' and the 1-bit value indicating the on / off of the buyer B is '1', in the microcomputer 14, the host The multi-firmware is set to firmware suitable for the buyer B by performing an interface with the.

Accordingly, in the microcomputer 14, the multi-firmware is set to firmware suitable for the host of the buyer A or the firmware suitable for the host of the buyer B through the interface with the host. It is possible to set the firmware suitable for the condition.

On the other hand, in the fifth embodiment according to the present invention, support information for each function is recorded in a part of the reserved area in the ATAPI_Vendor_Command, which is a communication protocol that has been previously prescribed. .

For example, as illustrated in FIG. 6, whether the function E is supported in the first bit (0) of the free area of the fourth byte in the Atapi vendor command in which the 'Fxh' OP Code is recorded. The 1-bit value indicating, the 1-bit value indicating whether the function D is supported in the second bit 1, and the 1-bit value indicating whether the function C is supported in the third bit 2 are recorded.

In addition, a 1-bit value indicating whether the function B is supported in the fourth bit 3 and a 1-bit value indicating whether the function A is supported in the fifth bit 5 are recorded. All of the values indicating whether or not may be set to '0' or at least one or more of '1'.

Accordingly, the microcomputer 14 sets the firmware corresponding to the unique functions supported by the host by setting the multi-firmware as the firmware suitable for the functions A through E through the interface with the host. It is possible to set the firmware suitable for the unique function of the host.

Therefore, a developer who develops an optical disc drive does not have to separately develop firmware for each host or for each function, thereby efficiently minimizing time and effort required for firmware development of the optical disc drive.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. , Alteration, substitution, addition, or the like.

1 illustrates an embodiment in which an optical disc drive and a host are connected and connected to the present invention.

FIG. 2 shows that an indicator indicating a recording limit and a reproduction limit and speed set information indicating different speeds are recorded in a vendor characteristic and a part of a spare area of an ATP BB command in the multi-firmware according to the first embodiment of the present invention. Shown,

FIG. 3 illustrates that on / off information of different buyers is recorded in a part of a free area of an atapi vendor characteristic page of the multi-firmware according to the second embodiment of the present invention.

4 is a diagram showing whether information on whether or not to support different functions is recorded in a part of a free area of an atapi vendor characteristic page among multi-firmware according to a third embodiment of the present invention.

FIG. 5 illustrates that on / off information of different buyers is recorded in a part of a spare area of an atapi vendor command in the multi-firmware according to the fourth embodiment of the present invention.

FIG. 6 illustrates whether information on whether to support different functions is recorded in a part of the spare area of the atapi vendor command in the multi-firmware according to the fifth embodiment of the present invention.

※ Explanation of code for main part of drawing

100: optical disk drive 200: host

10: optical disc 11: optical pickup

12: recording and playback unit 13: amppack codec

14: Micom 15: Memory

16 interface unit

Claims (12)

Storing the multi-firmware corresponding to a plurality of different functions or buyers in the optical disk drive; And And setting up the multi-firmware as a firmware corresponding to a unique function or a buyer of the host through an interface with any one host. The method of claim 1, In the multi-firmware, an indicator indicating a recording limit and a reproduction limit and speed set information indicating different speeds are recorded in a part of the vendor specific and reserved areas of the ATAPI_BBh_Command. Multi-Firmware setting method of an optical disc drive, characterized in that. The method of claim 1, The on / off information of different buyers is recorded in a part of the reserved area of the ATAPI_Vendor_Specific_Page among the multiple firmwares. The method of claim 1, And information on whether or not to support different functions is recorded in a part of the reserved area of the ATAPI_Vendor_Specific_Page among the multiple firmwares. The method of claim 1, The on / off information of different buyers is recorded in a part of the spare area of the atapi vendor command (ATAPI_Vendor_Command) among the multi-firmwares, wherein the on / off information of different buyers is recorded. The method of claim 1, And information on whether or not to support different functions is recorded in a part of the spare area of the ATAPI_Vendor_Command among the multi-firmwares. Connection means for connecting to any host; Storage means for storing multiple firmware corresponding to a plurality of different functions or buyers; And And control means for setting the multi-firmware to a firmware corresponding to a unique function or a buyer of the host through an interface with a host connected through the connection means. The method of claim 7, wherein In the multi-firmware, an indicator indicating a recording limit and a reproduction limit and speed set information indicating different speeds are recorded in a part of the vendor specific and reserved areas of the ATAPI_BBh_Command. Optical disk drive, characterized in that. The method of claim 7, wherein The on / off information of different buyers is recorded in a part of the reserved area of the ATAPI_Vendor_Specific_Page of the multi-firmware. The method of claim 7, wherein And information on whether or not to support different functions is recorded in a part of a reserved area of the ATAPI_Vendor_Specific_Page of the multi-firmware. The method of claim 7, wherein An on / off information of different buyers is recorded in a part of a spare area of the atapi vendor command (ATAPI_Vendor_Command) of the multi-firmware. The method of claim 7, wherein And information on whether or not to support different functions is recorded in a part of the spare area of the multi-firmware ATAPI_Vendor_Command.
KR1020080098487A 2008-10-08 2008-10-08 Optical disc drive and method for setting multi-firmware thereof KR20100039504A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101383841B1 (en) * 2011-12-06 2014-04-10 도시바삼성스토리지테크놀러지코리아 주식회사 controlling method of optical disc drive and the drive and information write and/or read system adopting the method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101383841B1 (en) * 2011-12-06 2014-04-10 도시바삼성스토리지테크놀러지코리아 주식회사 controlling method of optical disc drive and the drive and information write and/or read system adopting the method
US8817582B2 (en) 2011-12-06 2014-08-26 Toshiba Samsung Storage Technology Korea Corporation Method of controlling an optical disc drive, and optical disc drive and optical information writing and/or reading system using the method

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