EP0621997A1

Increased speech interleave with reduced delay.

Abstract

A time division multiple access radiotelephone system comprises a basic transceiver that receives voice signals from a public switched telephone network and sends voice signals to that network. The basic transceiver codes (CO, DEC) the voice signals in a recurrent time slot for each associated mobile transceiver. Mobile transceivers transmit signals to the base transceiver over a paired full duplex radio link.

Term

Term ended

Projected expiry passed 12 January 2013, 13.7 years ago.

Every citation, both ways

Citations
Document	Relation	Office	Cited during
EP0112697A2	Cites	European Patent Office (EPO)	Search report
EP0284089A2	Cites	European Patent Office (EPO)	Search report
US4559625A	Cites	United States of America	Search report

13 members in 8 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
19920822357	United States of America	–	1992-01-17
82235792	United States of America	A	1992-01-17
9300242	United States of America	W	1993-01-12

Members13

Family members, oldest first
Document	Office	Kind
CA2126989A1	Canada	A1	1993-07-22
WO9314584A1	World Intellectual Property Organization (WIPO)	A1	1993-07-22
AU3442593A	Australia	A	1993-08-03
CN1075039A	China	A	1993-08-04
FR2687521A1	France	A1	1993-08-20
FI943357A	Finland	A	1994-07-14
FI943357A0	Finland	A0	1994-07-14
FI943357A7	Finland	A7	1994-07-14
FI943357L	Finland	L	1994-07-14
EP0621997A1This record	European Patent Office (EPO)	A1	1994-11-02
EP0621997A4	European Patent Office (EPO)	A4	1995-02-01
FR2687521B1	France	B1	1995-12-01
US5517492A	United States of America	A	1996-05-14

9 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
2023-06-28	Opt-out of the competence of the unified patent court (upc) registeredP01	P01
1998-12-16	Application deemed to be withdrawnWithdrawn18D	18D
1998-10-30	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA
1998-04-01	First examination report despatched17Q	17Q
1995-02-01	Supplementary search report drawn up and despatchedA4	A4
1995-02-01	Designated contracting statesAK	AK
1994-11-02	Request for examination filed17P	17P
1994-11-02	Designated contracting statesAK	AK
1994-09-16	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI

Increased speech interleave with reduced delay.

Abstract

Term

Priority claims3

Members13

Over the term

Events

Numbers

Titles3

Classification

Designated states3