Prior art — US Patent 8085192

Here is an analysis of the most relevant prior art for US Patent 8085192, based on the citations provided within the patent text:

The independent claims of US8085192 B2 focus on a location information device with secure data storage, involving:

Determining location information (at least a route traveled)
Encrypting this determined location information
Storing the encrypted information in a storage module (removable or internal)
A processing module for handling the storage and retrieval of this encrypted information
Systems that involve an external computing device with a reader or connectivity to decrypt this information
User input of a code string or user verification (e.g., biometric) for decryption/access

The following prior art references are identified as most relevant:

Full Citation: US20040010699A1 - "Secure data management techniques" by Zhimin Shao.
Publication/Filing Date: Published: 2004-01-15 (Priority date: 2002-02-07).
Brief Description: This patent application discloses general methods and systems for secure data management, including encrypting data for storage and transmission to prevent unauthorized access.
Potential Anticipation (35 U.S.C. § 102): This reference broadly anticipates the concept of encrypting and storing data for security, which is a fundamental component of US8085192's independent claims (Claims 1, 13, 19, 22) regarding an "encryption module for encrypting the determined location information" and "storing the encrypted location information in a storage module." However, it does not specifically teach the application to location information on a GPS device with the detailed user-controlled decryption mechanisms (e.g., code string, external computer decryption) explicitly claimed in US8085192. It potentially anticipates the general notion of data encryption and secure storage, but likely not the full combination of elements in any independent claim.

Full Citation: US20060204047A1 - "Portable memory storage device with biometric identification security" by Sanjay Dave.
Publication/Filing Date: Published: 2006-09-14 (Priority date: 2005-03-09).
Brief Description: This patent application describes a portable memory storage device (e.g., a USB drive) that incorporates biometric identification security to control access to the stored data.
Potential Anticipation (35 U.S.C. § 102): This reference is highly relevant to US8085192's dependent claims 3-10, which introduce a "user verification module for verifying the identity of user of the device." Specifically, Claim 5 details an "identity capture device," and Claims 6-10 specify various biometric devices (retinal scanner, fingerprint reader, facial recognition reader, DNA detection device). Dave's patent, with its priority date preceding US8085192, directly teaches the use of biometric identification for securing a portable storage device. If the storage module of the GPS device in US8085192 is considered a portable memory storage device in this context, then the biometric access control aspects of Claims 3, 5, 6, 7, 8, 9, and 10 of US8085192 could be anticipated.

Full Citation: US7117075B1 - "Driver activity and vehicle operation logging and reporting" by Report On Board Llc.
Publication/Filing Date: Published: 2006-10-03 (Priority date: 2005-08-15).
Brief Description: This patent details a system for logging and reporting driver activity and vehicle operation, which includes collecting and storing GPS data such as vehicle location and speed.
Potential Anticipation (35 U.S.C. § 102): This reference is relevant to the initial elements of US8085192's independent claims (Claims 1, 13, 19, 22) concerning the determination and storage of location information. It explicitly teaches a "locational information module for determining location information of the device" where the "determined location information being at least one route traveled by the device" and includes "velocity of the device at predetermined times" (Claim 11). The patent describes storing this sensitive vehicle usage information. However, it lacks the explicit teaching of an "encryption module for encrypting the determined location information" on the device for user-controlled access via a code string or an external decryption program, which are central inventive features of US8085192. It thus provides a strong foundation for the data collection and storage aspects of US8085192 but would likely not fully anticipate the encryption and secure access control features.