EP0334050A3

A gaas two level differential current switch (dcs) circuit

Abstract

A GaAs two level differential current switch (DCS) circuit is disclosed. Two cross-coupled, push-pull output buffer stages are coupled to the DCS logic circuit to increase the gain and to improve noise margins. The circuit is compatible with other GaAs logic circuits such as super buffer logic (SBL) or source follower logic (SFFL).

EP0334050A3, drawing sheet 1 — Sheet 1 of 1

Term

Term ended

Projected expiry passed 24 February 2009, 17.6 years ago.

1 sheet

Sheet 1

Every citation, both waysCites: the store holds 2 of 3

Citations
Document	Relation	Office	Category	Cited during
EP0053428A2	Cites	European Patent Office (EPO)	A	Search report
EP0090572A2	Cites	European Patent Office (EPO)	A	Search report

6 members in 4 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
171604	United States of America	–	1988-03-22
17160488	United States of America	A	1988-03-22
US19880171604	–	–	–

Members6

Family members, oldest first
Document	Office	Kind
US4831284A	United States of America	A	1989-05-16
EP0334050A2	European Patent Office (EPO)	A2	1989-09-27
JPH0211019A	Japan	A	1990-01-16
EP0334050A3This record	European Patent Office (EPO)	A3	1991-01-02
CA1287123C	Canada	C	1991-07-30
JPH0695632B2	Japan	B2	1994-11-24

8 legal events, as the office reported them to INPADOC

Over the term

Point at a mark for the event

Events

Legal events, newest first
	Event	Code
1993-10-27	Application withdrawnWithdrawn18W	18W
1993-09-03	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN WITHDRAWNSTAA	STAA
1992-11-11	First examination report despatched17Q	17Q
1991-01-02	Designated contracting statesAK	AK
1990-11-14	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL
1990-03-21	Request for examination filed17P	17P
1989-09-27	Designated contracting statesAK	AK
1989-08-12	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI