by converting angle modulation to amplitude modulation (H03C1/28 - H03C1/34, H03C1/46, H03C1/48 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: by converting angle modulation to amplitude modulation

CPC: by converting angle modulation to amplitude modulation (H03C1/28 - H03C1/34, H03C1/46, H03C1/48 take precedence)

Full Title

Full titles differ between systems:

IPC:

Amplitude modulation > by converting angle modulation to amplitude modulation

CPC:

Amplitude modulation (H03C5/00, H03C7/00 take precedence) > by converting angle modulation to amplitude modulation (H03C1/28 - H03C1/34, H03C1/46, H03C1/48 take precedence)

Additional Content IPC

Amplitude Modulation by means of transit-time tube Amplitude Modulation by means of a magnetron Amplitude Modulation by deflection of electron beam in discharge tube Amplitude Modulation by means of light-sensitive element Amplitude Modulators with mechanically or acoustically driven parts Amplitude Modulation by means of Hall-effect devices

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class H03,2013–2023, worldwide · Source: EPO PATSTAT

QUALCOMM US 5,625
SAMSUNG ELECTRONICS COMPANY KR 5,496
MURATA MANUFACTURING COMPANY JP 5,478
HUAWEI TECHNOLOGIES COMPANY CN 3,383
INTEL CORPORATION US 3,091
TEXAS INSTRUMENTS US 3,070
MURATA MANUFACTURING COMPANY 2,722
SKYWORKS SOLUTIONS US 2,290
SEIKO EPSON CORPORATION 2,177
IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,158

Top Applicants (CPC)

Class H03,2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG ELECTRONICS COMPANY KR 7,293
QUALCOMM US 7,085
MURATA MANUFACTURING COMPANY JP 5,982
HUAWEI TECHNOLOGIES COMPANY CN 4,641
INTEL CORPORATION US 3,863
TEXAS INSTRUMENTS US 3,409
MURATA MANUFACTURING COMPANY 2,874
SK HYNIX KR 2,644
SKYWORKS SOLUTIONS US 2,545
IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,437