GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 155 263 406 patent documents

This week's update (19/04/2024 12:00 CET):

215 613 new documents added

1 342 057 documents amended

GPI key values

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EP 1012983 A1 20000628 - DELTA SIGMA ANALOG-TO-DIGITAL CONVERTER

Title (en)

DELTA SIGMA ANALOG-TO-DIGITAL CONVERTER

Title (de)

SIGMA DELTA ANALOG/DIGITALWANDLER

Title (fr)

CONVERTISSEUR ANALOGIQUE-NUMERIQUE DELTA SIGMA

Publication

EP 1012983 A1 20000628 (EN)

Application

EP 98902427 A 19980109

Priority

GB 9700403 A 19970110
US 9800311 W 19980109

IPC 1-7

H03M 3/02

IPC 8 full level

H03M 3/02 (2006.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

AU 5909798 A 19980803; EP 1012983 A1 20000628; EP 1012983 A4 20020807

DOCDB simple family (application)

AU 5909798 A 19980109; EP 98902427 A 19980109