Patent US4847807A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4847807A Expired / Lapsed US ⏱️ 0.0 years remaining

Multiple disk memory access arrangement for gridded type data

Assignee: Raytheon Co
•
Filing: 1986-09-11
•
Granted: 1989-07-11
•
Expires: 2006-09-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The method and apparatus for storing the data base of gridded type data on a plurality of rotary type data memory devices such that data update to a utilization system, e.g., a computer generated imagery (CGI) processor may be more effectively implemented. For the generalized case of N rotary data memory devices and for a data base of gridded type data which may be represented by rows and columns of data elements, data elements of each row are "mapped" to the memory devices in accordance with a repetitive and cyclical pattern. For example, for each row of the grid, the data for each data element of N successive elements is stored on a different one of the N rotary data memory devices and for successive groups of N elements the data is similarly stored in accordance with a repetitive, cyclical pattern wherein each cycle of the pattern includes N successive elements, the data for each of which is stored on a different one of said rotary data memory devices.

Inventors

  • 👤 Raymond C. Yule

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:38
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/60

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 161 words
A method of storing a data base of voxel or grided type data organized in accordance with a two dimensional grid comprising rows and columns of data elements, on N rotary type data memory devices suitable for storing and retrieving data so that data associated with the elements defined by the grid are distributed among various rotary memory devices in accordance with predetermined arrangements resulting in even distribution of update data thus reducing memory access time, the steps of the method comprising: storing the data associated said data elements of each row of said grid such that each data element of N successive elements of data is stored on a different one of said rotary memory devices; subsequently storing successive groups of said N elements in accordance with a cyclical pattern wherein each cycle of the pattern includes said N successive elements, the data for each of which is stored on a different one of said rotary type data memory devices.
Claim 2
Independent Claim 161 words
A method of storing a data base of voxel or grided type data organized in accordance with a two dimensional grid comprising rows and columns of data elements, on N rotary type data memory devices suitable for storing and retrieving data so that data associated with the elements defined by the grid are distributed among various rotary memory devices in accordance with predetermined arrangements resulting in even distribution of update data thus reducing memory access time, the steps of the method comprising: storing the data associated said data elements of each row of said grid such that each data element of N successive elements of data is stored on a different one of said rotary memory devices; subsequently storing successive groups of said N elements in accordance with a cyclical pattern wherein each cycle of the pattern includes said N successive elements, the data for each of which is stored on a different one of said rotary type data memory devices.
Claim 3
Dependent Claim 17 words
The method of claim 1 wherein said rotary type data memory devices comprise disk type memory devices.
Claim 4
Dependent Claim 17 words
The method of claim 2 wherein said disk type memory devices comprise magnetic disk type memory devices.
Claim 5
Dependent Claim 17 words
The method of claim 3 wherein said disk type memory devices comprise optical disk type memory devices.

References Cited (Backward Citations)

US4513374A Cited
US4667190A Cited
EP0156724A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-07-10 1993-01-09 1993-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-10 1997-01-09 1997-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-10 2001-01-09 2001-07-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag