Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
96 words
A method of accessing a memory in logical lines, some of which may contain uncorrectable errors, comprising the steps of: fetching a logical line from said memory and determining whether it contains an uncorrectable error; if an uncorrectable error is determined, deallocating an undedicated portion of said memory; and comparing line addresses on future accesses to said memory to determine whether the logical line accessed is the line known to contain said uncorrectable error and, if comparison shows equality, dynamically substituting the line address of said undedicated portion for the address of line to be accessed.
Claim 2
Independent Claim
96 words
A method of accessing a memory in logical lines, some of which may contain uncorrectable errors, comprising the steps of: fetching a logical line from said memory and determining whether it contains an uncorrectable error; if an uncorrectable error is determined, deallocating an undedicated portion of said memory; and comparing line addresses on future accesses to said memory to determine whether the logical line accessed is the line known to contain said uncorrectable error and, if comparison shows equality, dynamically substituting the line address of said undedicated portion for the address of line to be accessed.
Claim 3
Dependent Claim
67 words
A memory system accessible in logical lines comprising a memory and means for determing the presence of an uncorrectable error in a logical line accessed in said memory, characterized by means for deallocating an undedicated portion of said memory and directing all future access from said logical line to said,undedicated portion of said memory, and means for storing corrected data in said undedicated portion of said memory.
Claim 4
Dependent Claim
67 words
A memory system accessible in logical lines comprising a memory and means for determing the presence of an uncorrectable error in a logical line accessed in said memory, characterized by means for deallocating an undedicated portion of said memory and directing all future access from said logical line to said,undedicated portion of said memory, and means for storing corrected data in said undedicated portion of said memory.
Claim 5
Dependent Claim
37 words
The memory system of claim 2, for reading or writing data, wherein the undedicated portion of said memory contains at least one logical line which is substituted for the error-containing logical line whenever the latter is addressed.
Claim 6
Dependent Claim
41 words
The memory system of claim 3, said memory system comprising at least one basic storage module (BSM), a memory controller controlling the transfer of data between the basic storage module and the remainder of the system and a maintenance console (Fig.1).
Claim 7
Dependent Claim
20 words
The memory system of claim 4, wherein said maintenance console includes means for determining the presence of an uncorrectable error.
Claim 8
Dependent Claim
26 words
The memory system of claim 4, wherein said memory controller includes an address replacement array (4) containing addresses,of said logical line and said error-containing logical line.