Intellectual Ventures I, LLC v. EMC Corp.

District Court, D. Massachusetts·Decided September 9, 2019·No. 1:16-cv-10860·Unknown

Opinion

UNITED STATES DISTRICT COURT DISTRICT OF MASSACHUSETTS _______________________________________ ) Intellectual Ventures I, LLC, ) Intellectual Ventures II, LLC, ) ) Plaintiffs, ) ) v. ) Civil Action ) No. 16-10860-PBS Lenovo Group Ltd., Lenovo ) (United States) Inc., LenovoEMC ) Products USA, LLC, and EMC ) Corp., ) ) Defendants. ) ________________________________________) ) Intellectual Ventures I, LLC, ) Intellectual Ventures II, LLC, ) ) Plaintiffs, ) Civil Action ) No. 16-10868-PBS v. ) ) NetApp, Inc., ) ) Defendant. ) ________________________________________)

MEMORANDUM AND ORDER ON CLAIM CONSTRUCTION September 9, 2019 Saris, C.J. INTRODUCTION Intellectual Ventures I, LLC and Intellectual Ventures II, LLC (collectively, “IV”) accuse Defendants EMC Corporation, Lenovo Group Ltd., Lenovo (United States) Inc., LenovoEMC Products, USA, LLC, and NetApp, Inc. (collectively “Defendants”) of infringing U.S. Patent No. 6,968,459 (the “ʼ459 patent”) entitled “Computing environment having secure storage device.” IV asserts claims 15, 18, 24, and 25. Independent claims 15 and 18 state: 15. A method for accessing a storage device comprising:

detecting a storage device within the storage drive;

sensing whether a storage device has device- specific security information stored thereon;

providing full-access to the storage device when the storage device has the device- specific security information by:

encrypting digital data using the security information during a write access to write the digital data to the storage device; and

decrypting digital data using the security information during a read access to read the digital data from the storage device; and

providing restricted-access to the storage device when the storage device does not store the device-specific security information by preventing the digital data from being written to the storage device during the write access.

18. A method for controlling access to a storage device comprising:

detecting a storage device within a storage drive;

sensing whether the storage device has security information generated from a combination of device-specific information associated with the storage device and user-specific information associated with a user; configuring the storage drive to prevent write access to the storage device when the security information is not sensed; and

configuring the storage drive to permit write access by encrypting digital data using the security information and writing the encrypted digital data to the storage device when the security information is sensed.

ʼ459 patent, claims 15 and 18. The parties dispute the claim construction of five terms: (1) “detecting a storage device within a storage drive,” including disputes around “storage device” and “storage drive,” (2) “sensing whether a storage device has [device-specific] security information,” (3) “device- specific security information,” (4) “security information generated from a combination of device-specific information associated with the storage device and user-specific information associated with a user,” and (5) “encrypting digital data using the security information.” The Court held a non-evidentiary Markman hearing on April 24, 2019, and the parties submitted supplemental briefing afterwards. BACKGROUND The ʼ459 patent relates to a method of creating a secure computing environment by “preventing the authorized user from using sensitive data in an unauthorized manner.” ʼ459 patent, col. 1, ll. 21-23. With “conventional security measures” prior to the invention claimed in the ʼ459 patent, it was “very difficult to prevent an authorized user from appropriating sensitive data by simply copying the sensitive data to a removable storage device such as a floppy diskette.” Id. at col. 1, ll. 23-26. To address this issue, the inventors of the ʼ459 patent developed a computing environment “in which a computer automatically operates in a secure ‘full-access’ data storage mode when the computer detects the presence of a secure

removable storage device.” Id. at col. 1, ll. 36-39. Alternatively, “[i]f the computer senses a non-secure removable storage device then the computer automatically operates in a ‘restricted-access’ mode.” Id. at col. 1, ll. 39-42. Figure 1 of the ʼ459 patent, below, illustrates a system- level overview, depicting “a diagram of a computer 100 that automatically operates in a secure data storage mode when the computer 100 senses that storage device 151 is a secure storage device.” Id. at col. 2, ll. 30-33. “Each storage device 151 represents a removable device having a storage medium for holding digital information such as a floppy diskette . . . .” Id. at col. 3, ll. 8-10. “Each removable media drive 121

represents a device suitable for servicing access requests for storage device 151 such as a floppy drive . . . .” Id. at col. 3, ll. 13-15. 1 0 112 SYSTEM MEMORY

19 ae Is 125 5 116 Bus Controller System Adapter 20 Software 136 Applications 120 RI Hard i 10 N tk LOCAL AREA NETWORK ee Removable Media Drives dee K sl

E+ it) —_ Remote cc 42 40

FIG. |

According to the invention, “computer 100 automatically operates in full-access data storage mode only when the computer 100 detects a secure removable storage device 151 present within any one of the removable media drives 121.” Id. at col. 3, ll. 57- 60. To “automatically detect whether a storage device 151 isa secure device, computer 100 determines whether device-specific security information was written to storage device 151.” Id. at col. 4, 11. 6-9. Method 200, illustrated in the figure below,

details an exemplary way in which software applications 136 on computer 100 (hereinafter referred to as the “storage manager”) detect the required security information to allow computer 100 to operate in full-access mode.1 See id. at col. 4, ll. 46-52. “In block 204, the storage manager detects whether storage device 151 is a ‘secure’ removable device by attempting to read

any device-specific security information from storage device 151.” 2 Id. at col. 5, ll. 7-10. “In block 206, the storage manager retrieves drive-specific security information that is specific to removable media drive 121 such as a serial number or calibration parameters . . . .” Id. at col. 5, ll. 20-22. “In block 208, the storage manager retrieves user-specific security information from the computer user by, for example, prompting the user for a password, or performing a retina or fingerprint scan.” Id. at col. 5, ll. 39-42. “In block 210, the storage manager retrieves manufacturing information that was physically

1 “In one embodiment, the storage manager performs method 200 anytime a . . . storage device 151 is inserted into removeable media drive 121. In another embodiment, the storage manager performs method 200 at the request of a user.” ʼ459 patent, col. 4, ll. 57-62.

2 “[I]n one embodiment the device-specific security information is a hash of the addresses of the bad sectors for storage device 151. Because it is a function of the physical characteristics of the actual storage medium within storage device 151, the format information is inherently unique to each storage device 151.” ʼ459 patent, col. 4, ll. 12-17. “In other words, the addresses of the bad sectors change from device to device.” Id. at col. 4, ll. 18-19. This seems like cataloguing where a specific floppy disk or CD is scratched or damaged such that the specific portion of the removeable storage device could not have data written on to it, or read from it, in those areas. etched on storage device 151 during the manufacturing process.” Id. at col. 5, 11. 47-49.3

2 OT 204-,

_ Error Read media-specific information from the storage device. 206 Error Read drive-specific information from the storage drive. 208

4 3 .

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Intellectual Ventures I, LLC v. EMC Corp., (D. Mass. 2019).

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