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: 157 117 910 patent documents

This week's update (12/07/2024 12:00 CET):

139 301 new documents added

1 340 825 documents amended

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EP 1938461 A2 20080702 - VARIABLE GAIN FREQUENCY MULTIPLIER

Title (en)

VARIABLE GAIN FREQUENCY MULTIPLIER

Title (de)

FREQUENZVERVIELFACHER MIT VARIABLER VERSTÄRKUNG

Title (fr)

MULTIPLICATEUR DE FREQUENCE A GAIN VARIABLE

Publication

EP 1938461 A2 20080702 (EN)

Application

EP 06804160 A 20060926

Priority

US 2006037425 W 20060926
US 23590705 A 20050927
US 34800106 A 20060206

Abstract (en)

[origin: WO2007038484A2] A variable gain frequency multiplier comprises a multiplier circuit and a control circuit configured to receive a power control signal, the power control signal being proportional to a power output signal.

IPC 8 full level

H03G 3/30 (2006.01)

CPC (source: EP)

H03B 21/02 (2013.01); H03F 1/02 (2013.01); H03F 3/24 (2013.01); H03G 3/3047 (2013.01); H04B 2001/045 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2007038484 A2 20070405; WO 2007038484 A3 20071004; EP 1938461 A2 20080702; EP 1938461 A4 20130925

DOCDB simple family (application)

US 2006037425 W 20060926; EP 06804160 A 20060926