Patents Assigned to Ascom Autelca Ltd.
  • Protection system for critical memory information
    Patent number: 5276844
    Abstract: A computer system, typically a postage member system, has a processor, a memory, an address decoder, and a window circuit. The window circuit selectively couples the write strobe output of the processor with the write strobe input of the memory in response to the processor's setting and clearing of a latched signal. A counter resets the processor if the latched signal is set and not cleared within a predetermined time period.
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: January 4, 1994
    Assignee: Ascom Autelca Ltd.
    Inventors: Toni Aebi, Philippe Wicht