System and method for unlocking additional functions of a module
US9575908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Aug 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2147
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for interfacing with a co-processor or input/output device is disclosed. According to one embodiment, the system performs a maze unlock sequence by operating a memory device in a maze unlock mode. The maze unlock sequence involves writing a first data pattern of a plurality of data patterns to a memory address of the memory device, reading a first set of data from the memory address, and storing the first set of data in a validated data array. The maze unlock sequence further involves writing a second data pattern of the plurality of data patterns to the memory address, reading a second set of data from the memory address, and storing the second set of data in the validated data array. A difference vector array is generated from the validate data array and an address map of the memory device is identified based on the difference vector array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.