Non-volatile memory usage

Details Non-volatile memory usage Non-volatile memory usage

1989-08-03

1991-06-11

Evans, Arthur G.

Boots, shoes, and leggings

36494492, 364900, G06K 1500

Patent

active

050238132

ABSTRACT:
A page printer including a print engine (15) and a controller (11) which includes a non-volatile memory (16) having an EEPROM (17) and a chip RAM (18). A microprocessor (12) under program control manages the placement of data in the EEPROM (17) of the non-volatile memory (16). The EEPROM (17) and the associated chip RAM (18) are structured to have a control block (31) and a data storage portion (32-39). The control block (31) includes pointers (41-47) indicating the locations in the non-volatile memory where data is stored. If a data location becomes faulty, the value of the pointer to that location is changed so that the pointer points to a previously unused portion of the non-volatile memory.

REFERENCES:
patent: 4586147 (1986-04-01), Tadokoro
patent: 4751703 (1988-06-01), Picon et al.
patent: 4803707 (1989-02-01), Cordan, Jr.

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