Title:
PARITY OPERATION CIRCUIT AND ITS OPERATIONAL SYSTEM
Document Type and Number:
Japanese Patent JP3051026
Kind Code:
B2
Abstract:
PURPOSE: To provide the parity operation circuit with which a parity can be exchanged while considering only the exchange component of data.
CONSTITUTION: This circuit is provided with a comparison operation circuit 22 for performing the comparison operation of data signals inputted as input data and exchange data, comparison operation circuit 24 for performing comparison operation for the exchange component of a present frame by performing comparison arithmetic processing for this operation result and the exchange component of a preceding frame to which the comparison operation is performed the last time, and comparator circuit 9 for performing comparison operation for the exchange component of the present frame, to which the arithmetic processing is performed by the comparison operation circuit 24, and the parity included in the input data and calculating the exchange parity to be exchanged with this parity.
Inventors:
Toshiya Yamashita
Application Number:
JP19663894A
Publication Date:
June 12, 2000
Filing Date:
August 22, 1994
Export Citation:
Assignee:
Oki Electric Industry Co., Ltd.
International Classes:
G06F11/10; H03M13/00; H04J3/00; H04J3/14; H04L1/00; (IPC1-7): H04L1/00; G06F11/10; H03M13/00; H04J3/00; H04J3/14
Attorney, Agent or Firm:
Kenji Ohnishi