Memory system

Claim 2

A memory system comprising in combination: a. data storage means having preDetermined addressable storage locations operable to store data; b. control means for mapping inoperative storage locations in said data storage means; c. redundant data storage means; and d. logic means responsive to said mapping control means for relocating addressed inoperative storage locations from said data storage means to said redundant data storage capability.

Claim 3

A memory system as set forth in claim 1 wherein said data storage means comprises a magnetic disc file. k

Claim 4

A memory system comprising in combination: a. a rotating magnetic disc file comprising a plurality of planar surfaces adapted to storing data, each of said surfaces being partitioned into a plurality of concentric data tracks and into a plurality of wedge-shaped sectors, a data track within a sector defining a data information segment; b. a redundant data storage surface for receiving data addressed to inoperative data information segments of said disc file; and c. control means for automatically relocating identified inoperative data information segments to said redundant data surface thereby providing a memory system wherein all addressable memory locations may be utilized.

Claim 5

A memory system comprising in combination: a. a rotating magnetic disc file comprising a plurality of planar surfaces adapted to storing data, each of said surfaces being partitioned into a plurality of concentric data tracks and into a plurality of wedge-shaped sectors, a data track within a sector defining a data information segment; b. a redundant data storage surface for receiving data addressed to inoperative data information segments of said disc file; and c. control means for automatically relocating identified inoperative data information segments to said redundant data surface thereby providing a memory system wherein all addressable memory locations may be utilized.

Claim 6

A memory system as set forth in claim 3 including a control data surface, said control means including means for recording of information on control data surface indicating the operativeness status of each data information segment within a selected sector of said disc file and a logic circuit operative to relocate to said redundant data surface data information segments identified as inoperative.

Claim 7

A memory system as set forth in claim 4 wherein said control data surface said redundant data surface comprise respective planar data surfaces of a magnetic disc.

Claim 8

A memory system as set forth in claim 4 wherein said logic circuit includes means for controlling the selection of data to be read from said control data surface, status means for determining the operativeness status of addressed data information segments and means responsive to data selection means and said status means for relocating inoperative addressed data information segments to said redundant data storage surface.

Claim 9

A memory system as set forth in claim 6 wherein said means for controlling the selection of data to be read from said control data surface comprises a binary counter.

Claim 10

A memory system in which all addressable locations may be utilized comprising in combination: a. at least one rotating magnetic disc data storage element having a planar surface on at least one side thereof adapted for storing data, said surface being defined by a plurality of concentric data tracks and being further defined by a plurality of sectors, the sides thereof being defined by indicia in each of the concentric tracks along a pair of lines extending radically from the center of said surface, each data track within the confines of a sector defining a data information segment, certain identified data information segments of said memory system possessing defects that prevent data from being stored therein; b. a rotating control disc file having a planar surface on one side thereof adapted for storing data, said surface being partitioned into sectors and concentric data tracks, respective sectors of said surface of said control file being aligned with corresponding sectors of said surface of said at least one data storage element, said surface of said control file providing a redundant data storage surface upon which data that has been addressed to inoperative data information segments of said data storage element may be relocated, the other planar surface of said control file also being partitioned into sectors and data tracks and being adapted for storing data relative to the operativeness status of each data information segment of said at least one data storage element; c. means for transferring data to and from selected data information segments on said at least one data storage element and said control file; and Pg,21 d. logic means electrically connected to said other surface of said control file, said logic means being operative using said transfer means to automatically relocate on said redundant storage surface all data information segments of said at least one data storage element indicated as being inoperative by the information stored on said other surface of said control file, thereby providing a memory system wherein all addressable data information segments may be utilized for data transactions.

Claim 11

A memory system in which all addressable locations may be utilized comprising in combination: a. at least one rotating magnetic disc data storage element having a planar surface on at least one side thereof adapted for storing data, said surface being defined by a plurality of concentric data tracks and being further defined by a plurality of sectors, the sides thereof being defined by indicia in each of the concentric tracks along a pair of lines extending radically from the center of said surface, each data track within the confines of a sector defining a data information segment, certain identified data information segments of said memory system possessing defects that prevent data from being stored therein; b. a rotating control disc file having a planar surface on one side thereof adapted for storing data, said surface being partitioned into sectors and concentric data tracks, respective sectors of said surface of said control file being aligned with corresponding sectors of said surface of said at least one data storage element, said surface of said control file providing a redundant data storage surface upon which data that has been addressed to inoperative data information segments of said data storage element may be relocated, the other planar surface of said control file also being partitioned into sectors and data tracks and being adapted for storing data relative to the operativeness status of each data information segment of said at least one data storage element; c. means for transferring data to and from selected data information segments on said at least one data storage element and said control file; and Pg,21 d. logic means electrically connected to said other surface of said control file, said logic means being operative using said transfer means to automatically relocate on said redundant storage surface all data information segments of said at least one data storage element indicated as being inoperative by the information stored on said other surface of said control file, thereby providing a memory system wherein all addressable data information segments may be utilized for data transactions.