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    • 5. 发明授权
    • Electronic apparatus including a memory device and method of
reprogramming the memory device
    • 电子设备,包括存储器件和重新编程存储器件的方法
    • US6092190A
    • 2000-07-18
    • US792425
    • 1997-01-30
    • Daniel John Lee
    • Daniel John Lee
    • G07B17/00G11C16/10G06F9/06
    • G11C16/105G06F8/60G07B17/00193G11C16/102G07B2017/00258G07B2017/00403
    • A method of reprogramming memory storing program instruction code for controlling operation of a microprocessor in which new data can be written to the memory by the microprocessor only in a write cycle and stored data can be read from the memory by the microprocessor only in a read cycle, the memory preventing the read cycle and said write cycle occurring at the same time is disclosed. The memory has first and second sectors for storing code, the first sector storing boot code for controlling operation of the microprocessor. The disclosed method includes the steps of erasing code stored in said second sector, writing new code including the boot code to the second sector, erasing the first sector, writing new boot code in the first sector preceded by an instruction to jump to said second sector and then rendering the jump instruction ineffective so that the next boot of the microprocessor will cause the microprocessor to be controlled by the new boot code in the first sector.
    • 一种重新编程存储器程序指令代码的方法,用于控制微处理器的操作,其中微处理器只能在写周期中将新数据写入存储器,并且存储的数据可以由微处理器仅在读周期中从存储器中读取 公开了防止读周期和所述写周期同时发生的存储器。 存储器具有用于存储代码的第一和第二扇区,第一扇区存储用于控制微处理器的操作的引导代码。 所公开的方法包括以下步骤:擦除存储在所述第二扇区中的代码,将包括引导代码的新代码写入第二扇区,擦除第一扇区,在第一扇区之前写入新的引导代码,之前是跳转到所述第二扇区的指令 然后使跳转指令无效,以便微处理器的下一次引导将导致微处理器由第一扇区中的新引导代码进行控制。
    • 8. 发明授权
    • Tamper detection
    • 篡改检测
    • US06515574B1
    • 2003-02-04
    • US09237814
    • 1999-01-27
    • Raymond John HerbertDaniel John Lee
    • Raymond John HerbertDaniel John Lee
    • G06F700
    • G08B13/14Y10T70/7915Y10T70/8216
    • A tamper evidence device for a secure housing containing electronic circuits includes a zinc air cell and a bi-stable latch circuit connected to be powered by the cell. The zinc air cell requires a supply of oxygen for activation of the cell. Normally when the secure housing is intact and unbreached, a pad seals an aperture for ingress of oxygen to the cell and the cell does not generate any electrical power. However if the secure housing is opened or otherwise breached the pad is displaced and oxygen enters the cell and electrical power is generated to power the latch circuit and thereby set the bi-stable latch circuit to provide evidence of the breaching of the secure housing.
    • 用于包含电子电路的安全壳体的防篡改装置包括连接到由电池供电的锌空气电池和双稳态锁存电路。 锌空气池需要供应氧气来激活电池。 通常当安全壳体完好无损时,垫片将密封孔用于氧气进入电池,电池不会产生任何电力。 然而,如果安全壳体被打开或以其他方式被破坏,则焊盘被移动并且氧气进入电池并且产生电力来为闩锁电路供电,从而设置双稳态闩锁电路以提供破坏安全壳体的证据。