Portable RAM drive
Patent 6920527 Issued on July 19, 2005. Estimated Expiration Date: 
February 11, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 11, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDown-loadable hand-held optical reader Pen-type portable memory device Non-volatile memory device with built-in laser indicator Patent #: 6614708 InventorsAssigneeApplicationNo. 10364583 filed on 02/11/2003US Classes:711/115, Detachable memory711/101, Specific memory composition235/472.03, Wand-type reader (e.g., manual scan)361/686, Input/output device support365/228, Data preservation710/68, Data compression and expansion455/556.1Integrated with other deviceExaminersPrimary: Elmore, Reba I.Attorney, Agent or FirmInternational ClassG06F012/00AbstractA portable RAM drive comprising data stored on a non-volatile memory and transferable to a volatile memory when the portable RAM drive is coupled to a computer system. When the portable RAM drive is plugged into the computer system, the data from the non-volatile memory may be transferred to the volatile memory for faster access by the computer. If the portable RAM drive is unplugged from the computer, an internal power source may power the portable RAM drive long enough to transfer the data from the volatile memory to the non-volatile memory. In one embodiment, the portable RAM drive may use a restraining device or an indicator light to indicate to the user that the portable RAM drive should not be unplugged from the computer because the data has not yet been transferred from the volatile memory to the non-volatile memory.Other References
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