Patent ID: 6696875
Filing Date: 2004-02-24
Classification: G06F,H03K

Abstract:
A pulse clock/signal delay apparatus (PCD) comprising:a series-connected chain of N pulse delay stages, 1&lE;N&lE;Nmax, each stage having an input and respective output with a pulse delay of &Dgr;t therebetween, the pulse delay stages connected output to following input from a first stage (N=1) to a next-to-last stage (N=Nmaxâˆ’1); an input of the apparatus connected to an input of the first stage (N=1) of the N pulse delay stages; an output of the apparatus connected to an output of an Nd-th stage (N=Nd&lE;Nmax) of the N pulse delay stages by a Diagonal Cross Point matrix (400), having: M parallel and spaced apart row select input lines (402[m]) each connected separately at an outer peripheral end to a corresponding one of M row access select (RAS) lines (xr[m]) of a matrix select bus (240); N parallel and spaced apart column select input lines (404[n]), each connected separately at an outer peripheral end to a corresponding one of N column access select (CAS) lines (yc[n]) of the matrix select bus (240) in which the M row lines (402[m]) are not parallel to the N column lines (404[n]) and both the RAS lines and the CAS lines are directed proximally away from the respective outer peripheral ends toward one side of a diagonal (500) disposed from opposite corners (C1, C3) of the diagonal cross point (DCP) (400); Nmax parallel and spaced apart column delay signal input lines (406[j]), each separately connected at a respective outer peripheral end to a corresponding one of delayed signal outputs (213[j]) from a series delay block (260); Nmax parallel and spaced apart row switch outputs lines (409[j]) each separately connected at a respective outer peripheral end to corresponding matrix outputs xout[j], where M=N=Nmax and the column delay signal input lines (406[j]) are not parallel to the row switch output lines (409[j]) and the column delay signal input lines and the row switch output lines are both directed proximally from respective outer peripheral ends toward the opposite side of the diagonal (500).