Title:
DEVICE FOR INSPECTING AND CORRECTING CODE ERROR
Document Type and Number:
Japanese Patent JPS6334776
Kind Code:
A
Abstract:
PURPOSE:To reduce the load of a host computer by making it possible to access a buffer memory directly from a host computer, separating a control code and an inspection code from an information code in the address space of the buffer memory and continuously arranging plural blocks. CONSTITUTION:A part of a code word corresponding to an information code is continuously stored in a real buffer memory address 2 by an address deciding and changing circuit 3a. When a code error inspecting/correcting circuit 1 ends the error inspection/correction of the code word in the buffer memory 2, the host computer can access the buffer memory 2 at random through an address/ data bus switching circuit 3b. Since the inspection code and the control code are separated from the information code required by the host computer the host computer can access the buffer memory 2 as a memory window continuously storing only the data required by the host computer.
Inventors:
MURAI KATSUMI
USUI MAKOTO
SATO ISAO
USUI MAKOTO
SATO ISAO
Application Number:
JP17802186A
Publication Date:
February 15, 1988
Filing Date:
July 29, 1986
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G06F11/10; G11B20/18; H03M13/00; (IPC1-7): G06F11/10; G11B20/18; H03M13/00
Domestic Patent References:
| JPS60254463A | 1985-12-16 |
Attorney, Agent or Firm:
Akira Kobiji (2 outside)