US 4,064,360 AGranted

High speed digital switch

AssigneeThe United States of America as represented by the Secretary of the Navy

InventorHarry J. Koenig

Life of this patent

Estimating the term…

Loading patent…

Abstract

A switching system for rapidly configuring transmission paths between comer equipments for high speed digital information in parallel form couples the input of a parallel-to-serial (P/S) converter to the output of each equipment providing information and the output of a serial-to-parallel (S/P) converter to the input of each equipment receiving information. A digital switch rapidly configures information transmission channels between its inputs and outputs in response to instructions from a configuration control. Each switch input is coupled to the output of a P/S converter, and each switch output is coupled through a switch output lead to the input of an S/P converter. A clock provides a periodic clock signal to each P/S converter through an adjustable delay control and to each S/P converter through a clock lead, wherein the electrical lengths of the switch output lead and clock lead coupled to the same S/P converter are equal. Each transmission path through the system is coupled between a P/S converter and an S/P converter which are synchronously operated.

Claims8

Dependent claims

An apparatus having input means and output means for rapidly coupling digital information in parallel form applied to a selected one of said appartus input means to a selected one of said apparatus output means, said apparatus comprising:

a. switching means having switch input means and switch output means for rapidly configuring a transmission channel for digital information from a selected one of said switch input means to a selected one of said switch output means in response to a configuration instruction;
b. configuration control means coupled to said switching means for coupling configuration instructions to said switching means;
c. parallel-to-serial (P/S) converter means, each of said P/S converter means having its input coupled to one of said apparatus input means and having its output coupled to one of said switch input means, for receiving digital information in parallel form from its coupled apparatus input means and for coupling digital information in serial form to its coupled switch input means;
d. serial-to-parallel (S/P) converter means, each of said S/P converter means having its output coupled to one of said apparatus output means and having its input coupled through a switch output lead to one of said switch output means for receiving digital information in serial form from its coupled switch output means and for coupling digital information in parallel form to its coupled apparatus output means;
e. clock means for generating a periodic clock signal, which is coupled to each of said P/S converter means through an adjustable delay control means, and to each of said S/P means through a clock lead, wherein the electrical lengths of the switch output lead coupling digital information and the clock lead coupling a clock signal to the same S/P converter are equal.

2 more elements

Dependencies are inferred from the claim text.