公开(公告)号：JP2001111536A

公开(公告)日：2001-04-20

申请号：JP2000243514

申请日：2000-08-11

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GABARA THADDEUS JOHN ,  ADRIAN PATRICK RAINAMU

IPC: G06F13/42 ,  G06F1/12 ,  H03L7/081 ,  H03L7/091 ,  H04L7/00 ,  H04L7/033 ,  H04L7/04

Abstract: PROBLEM TO BE SOLVED: To provide technology regarding synchronization technology suitable to be used in the case of unknown correspondence relation, such as unknown or uncertain phase relation or for use with data transfer between circuits to be operated by an uncertain signal, and other signal processing technology regarding electronic circuits. SOLUTION: The circuit of a device includes first, second and third processing circuit 14-1, 14-2, 14-3, each of which executes a sampling function by using clock signals with which prescribed signal is to be synchronized regarding one corresponding version of an initial, a middle and a last versions of the prescribed signal. A logic circuit 16 to be connected with each output of the first, second and third processing circuit generates a control signal to indicate presence/absence of necessary phase relation among the clock signal and the first, second and third versions of the specified signal. Then when absence of the necessary correspondence relation is indicated by the control signal, a selecting circuit changes the phase relation among the clock signal and the first, second and third versions of the specified signal according to the control signal.