Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PARALLEL PSEUDO RANDOM NUMBER STRING GENERATOR FOR EMULATING SERIAL PSEUDO RANDOM NUMBER STRING GENERATOR AND METHOD FOR EXECUTING THE SAME
Document Type and Number:
Japanese Patent JPH0368022
Kind Code:
A
Abstract:

PURPOSE: To emulate a serial pseudo random number string generator or a scramble output by a parallel realizing configuration by providing a plurality of outputs which apply the continuous serial outputs of the serial pseudo random number string generator.

CONSTITUTION: Plural stages constituted as a shift register 22 are integrated in a typical serial pseudo random number string generator 20 (serial PRG) so that values at each stage can be transmitted to next stage until the final one. The values at the final stage are typically exclusive OR(XOR) calculated with one bit of a communication data stream, and the result of the XOR calculation is actually transmitted in a communication task. In the exclusive OR arithmetic operation, when both inputs are a logical value 1 or logical value 0, the output is defined a logical value 0, and when the inputs are a logical value 1 and 0 each, or vice verse, the output is defined a logical value 1.


Inventors:
UIRIAMU EDOWAADO POOUERU
UIRIAMU BAANAADO UEBAA
JIYORUJIYU ANDORE SHIYARURU RO
Application Number:
JP12286190A
Publication Date:
March 25, 1991
Filing Date:
May 11, 1990
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ALCATEL NV
International Classes:
H03K3/84; H04J3/00; G06F7/58; H04L9/22; H04L25/03; (IPC1-7): G06F7/58; H03K3/84
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)



 
Next Patent: JPH0368023