CD-ROM disk and security check method for the same

A CD-ROM disk comprises an identifier region having a disk identifier recorded in and a security code region having a security code recorded in. The identifier region and the security code region are provided in one sector of a boot sector to be read when actuated. The disk identifier includes a preset identification code, and the security code includes at least a program to be executed after check of the security code, and display data for displaying a license. A security check method for a CD-ROM disk comprising the steps of reading data recorded in the boot sector of the CD-ROM disk when actuated, comparing the disk identifier read from the identifier region of the boot sector with an stored identifier to check whether or not the read disk identifier is correct, comparing the security code read from the security region of the boot sector with a stored security code to check whether or not the read security code is correct, and executing the program contained in the security code when the read disk identifier and the read security code are correct, and displaying a license based on the display data.

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Claims

1. A CD-ROM disk to be mounted on a CD-ROM device, said CD-ROM disk comprising an identifier region having a disk identifier recorded therein, and a security code region having a security code recorded therein,

the identifier region and the security code region being provided in one sector of a boot sector to be read when actuated,
the disk identifier including a preset identification code,
the security code including at least a program to be executed after check of the security code.

2. A CD-ROM disk according to claim 1, wherein the program includes:

a first step in which head addresses of data recorded in the CD-ROM disk are set in a register of a first CPU; and
a second step in which a required program routine stored in a CD-ROM device is executed.

4. A CD-ROM disk according to claim 1, wherein the security code includes display data for displaying a license.

5. A CD-ROM disk according to claim 4, wherein the program includes:

a first step in which head addresses of data recorded in the CD-ROM disk are set in a register of a first CPU; and
a second step in which a required program routine stored in the CD-ROM device is executed.

7. A CD-ROM disk according to claim 4, wherein the security code includes a LOGOTYPE data indicative of LOGOTYPE to be displayed.

8. A CD-ROM disk according to claim 7, wherein the program includes:

a first step in which head addresses of data recorded in the CD-ROM disk are set in a register of a first CPU; and
a second step in which a required program routine stored in a CD-ROM device is executed.

11. A security check method according to claim 10, wherein the forth step includes:

a first step of setting addresses of data recorded in the CD-ROM disk in a register of a first CPU; and
a second step of executing a required program routine stored in a CD-ROM device.

13. A security check method according to claim 10, wherein the security code includes display data for displaying a license and wherein the fourth step includes displaying a license based on the display data.

14. A security check method according to claim 13, wherein the fourth step includes:

a first step of setting addresses of data recorded in the CD-ROM disk in a register of a first CPU; and
a second step of executing a required program routine stored in the CD-ROM device.

16. A security check method according to claim 13, wherein the security code includes a LOGOTYPE data indicative of LOGOTYPE to be displayed, and wherein the forth step includes a step of displaying a LOGOTYPE based on the LOGOTYPE data.

19. A television game device with a CD-ROM device for mounting a CD-ROM disk, said CD-ROM disk including an identifier region having an identifier recorded in and a security code region having a security code recorded in, the identifier region and the security code region being provided in one sector of a boot sector to be read when actuated, the disk identifier including a preset identification code, the security code including at least a program to be executed after check of the security code, the television game device comprising:

an executing means for reading data recorded in said boot sector of the CD-ROM disk when actuated, comparing the disk identifier read from the identifier region of the boot sector with a stored identifier to check whether or not the read disk identifier is correct, and comparing the security code read from the security region of the boot sector with a stored security code to check whether or not the read security code is correct, and for executing said program in the security code when the read disk identifier and the read security code are correct.

20. A television game device according to claim 19, wherein the security code includes display data for displaying a license, and wherein the executing means displays a license based on the display data.

21. A television game device according to claim 19, wherein the security code includes LOGOTYPE data indicative of LOGOTYPE to be displayed, and wherein the executing means displays a LOGOTYPE based on the LOGOTYPE data.

22. A television game device according to claim 19, wherein the executing means sets addresses of data recorded in the CD-ROM disk in a register, and executes a required program routine stored in the CD-ROM device.

23. A television game device according to claim 19, wherein the executing means includes a first CPU and a second CPU, and wherein the second CPU temporarily pauses the first CPU, rewrites contents of a program memory of the first CPU in data recorded in the CD-ROM disk, resumes operation of the first CPU which has been temporarily paused, sets addresses of data recorded in the CD-ROM disk in a register, and executes a required program routine stored in the CD-ROM device..Iadd.

24. A game device executing a game program loaded from an information storage medium which stores said game program and a bootstrap program, said game device comprising:

a memory means which stores reference data; and
an executing means for reading said bootstrap program from said information storage medium when said information storage medium is mounted on said game device, comparing said bootstrap program with said reference data stored in said memory means to check whether or not said bootstrap program corresponds to said reference data, and executing said bootstrap when said bootstrap program corresponds to said reference data..Iaddend..Iadd.25. A game device executing a game program loaded from an information storage medium which stores said game program and a data set including a message-displaying program and message data, said game device comprising:
a memory means which stores a reference data set including a reference program; and
an executing means for reading said data set from said information storage medium when said information storage medium is mounted on said game device, comparing said read data set with the reference data set to check at least whether or not said message-displaying program agrees with said reference program, and executing the message-displaying program to display a message corresponding to the message data when said message-displaying program agrees with said reference program..Iaddend..Iadd.26. A security check method for an information storage medium to be mounted on a game device with a security check function and reference data, said information storage medium storing a game program and a bootstrap program, comprising the steps of:
reading said bootstrap program from said information storage medium when said information storage medium is mounted on said game device;
comparing said bootstrap program with said reference data to check whether or not said bootstrap program corresponds to said reference data; and
executing said bootstrap program when said bootstrap program corresponds to said reference data..Iaddend..Iadd.27. A security check method for an information storage medium to be mounted on a game device with a security check function and reference data including a reference program, said information storage medium storing a game program and a bootstrap program including a data set of message-displaying program and message data, comprising the steps of:
reading said bootstrap program from said information storage medium when said information storage medium is mounted on said game device;
comparing the read data set in the bootstrap program with said reference data to check at least whether or not said message-displaying program agrees with said reference program; and
executing the message-displaying program to display a message corresponding to said message data when said message-displaying program agrees with said reference program..Iaddend..Iadd.28. An information storage medium for a game device with a security check function, said information storage medium having a data storage area containing a security code which includes a program to be executed by the game device after a check of the security code by the game device..Iaddend..Iadd.29. A software storage medium for use in an electronic device having means for identifying the nature of software and means for checking authenticity of the storage medium, said software storage medium comprising:
a main region storing software to be ready and executed by said electronic device; and
an initialization region to be read and executed by said electronic device for initialization of the electronic device and containing an identifier region storing an identifier code indicative of the nature of the software, and a security code region storing a security code including at least a program to be executed after completion of checking the security code by the electronic device..Iaddend..Iadd.30. An information storage medium for use in game device having means for identifying the type of the information storage medium mounted thereon and means for checking authenticity of the information storage medium, said information storage medium comprising a main region storing a game program to be executed by said electronic device and an initialization region to be read for initialization of the electronic device, said initialization region comprising:
an identifier region storing an identifier code indicative of the type of said information storage medium; and
a security code region storing a security code including message data and a message-displaying program to be executed after completion of checking the security code by the electronic device..Iaddend..Iadd.31. A game device for executing a game program loaded from an information storage medium which stores the game program and a initialization program, said game device comprising:
a memory means which stores reference program; and
an executing means for reading the initialization program from the information storage medium when said information storage medium is mounted to said game device, comparing the read initialization program with the reference program stored in said memory means to check whether or not the read initialization program includes a program which agrees with said reference program, and executing the initialization program when the read initialization program includes a program which agrees with the reference

program..Iaddend..Iadd.32. An information storage medium for use with a game device, comprising a data storage area containing a game program to be executed by the game device and a security code, said security code comprising a message-displaying program to be executed by the game device for displaying a message indicating an authentic source of origin of the game program..Iaddend..Iadd.33. A game device having a security check function for executing a game program loaded from an information storage medium comprising:

means for reading a security code from the information storage medium when said information storage-medium is mounted on the game device, said security code including a message-displaying program for displaying a message indicating an authentic source of origin of the game program;
a memory means with a reference security code stored therein;
means for comparing said read security code including the message-displaying program with said reference security code to determine whether or not the read security code agrees with the reference security code; and
means for executing said message-displaying program to produce a display message indicating an originator of the game program..Iaddend..Iadd.34. A game device as in claim 33, wherein said means for executing said message display program operates to display said message after said comparing means determines that the read security code agrees with the reference security code..Iaddend..Iadd.35. A game device according to claim 33, further comprising means for enabling the game device to execute a game operation in accordance with the same program loaded from the information storage medium when said security code agrees with said reference security code..Iaddend..Iadd.36. A game device comprising:
an information storage medium reader to which an information storage medium with a stored game program can be mounted;
comparing means for comparing data read from a predetermined area of an information storage-medium with a reference security code stored in the game device to check whether or not the read data agrees with the reference security code;
enabling means for enabling the game device to execute a game operation in accordance with the game program read from an information storage medium when the comparing means determines that the read data agrees with the reference security code;
checking means for checking a status of the information storage medium reader when the game device is made ready for the game operation by the enabling means to ensure that an information storage medium remains coupled to said reader; and,
means for disenabling the game device from executing the game operation and for causing the information storage medium reader, the comparing means and the enabling means to initiate again the reading of data from said predetermined area of an information storage medium, the comparison of the read data with said reference security code, and the enabling of the game device to execute a game operation if the read data agrees with the reference security code, when the checking means determines that the information storage medium reader indicates that an information storage medium from which the data was initially read may have been removed from said reader..Iaddend..Iadd.37. A game device according to claim 36, wherein the security code contains a program to be executed after the comparison of the read data with said reference security code..Iaddend..Iadd.38. A game device according to claim 36, wherein the security code contains a program for displaying a message indicating an authentic source of origin of the game program..Iaddend..Iadd.39. A game device as in claim 35, wherein said information storage medium is a disk..Iaddend..Iadd.40. A game device as in claim 39, wherein said disk is a CD-disk and said checking means for checking a status of said storage medium determines whether a tray in said game device for mounting said CD-disk is opened, after said enabling means has enabled a game operation..Iaddend.
Referenced Cited
U.S. Patent Documents
4442486 April 10, 1984 Mayer
4454594 June 12, 1984 Heffron et al.
4462076 July 24, 1984 Smith, III
5010571 April 23, 1991 Katznelson
5050213 September 17, 1991 Shear
5113518 May 12, 1992 Durst, Jr. et al.
5133079 July 21, 1992 Ballantyne et al.
5155768 October 13, 1992 Matsuhara
Foreign Patent Documents
1183276 February 1985 CAX
378385 July 1990 EPX
447043 September 1991 EPX
080244 August 1984 FRX
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Other references
  • Macintosh System Software 6.04, Apple Computer, Inc., 1989, p. 88.
Patent History
Patent number: RE35839
Type: Grant
Filed: Aug 25, 1995
Date of Patent: Jul 7, 1998
Assignee: Kabushiki Kaisha Sega Enterprises
Inventors: Toshinori Asai (Yokosuka), Masaki Kawahori (Chiba)
Primary Examiner: Stephen C. Buczinski
Law Firm: Dickstein Shapiro Morin & Oshinsky LLP
Application Number: 8/519,580
Classifications
Current U.S. Class: 380/3; 364/DIG1; 364/DIG2; 364/2458; 364/2469; 364/9694; 369/47; 380/4; 380/23; 380/25
International Classification: G11B 2328; G11B 509; H04L 900;