Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00)

Introduced: January 1985

Title

Titles differ between systems:

IPC: Analogue/digital conversion; Digital/analogue conversion

CPC: Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00)

Full Title

Full titles differ between systems:

IPC:

Analogue/digital conversion; Digital/analogue conversion

CPC:

Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00)

Of 9 combined children, 6 exist in both systems.

3 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1985.

Child Classifications

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H03M 1/001 CPC only CPC only
H03M 1/002 CPC only CPC only
H03M 1/004 +3 CPC CPC only CPC only
H03M 1/02 Reversible analogue/digital converters since 1985 IPC+CPC Available in IPC and CPC
H03M 1/04 using stochastic techniques since 1985 IPC+CPC Available in IPC and CPC
H03M 1/06 Continuously compensating for, or preventing, undesired influence of physical parameters (periodically, H03M1/10) since 1985 +3 CPC IPC+CPC Available in IPC and CPC
H03M 1/10 Calibration or testing since 1985 +4 CPC IPC+CPC Available in IPC and CPC
H03M 1/12 Analogue/digital converters ( H03M1/10 take precedence) since 1985 +3 CPC IPC+CPC Available in IPC and CPC
H03M 1/66 Digital/analogue converters ( H03M1/10 take precedence) since 1985 +6 CPC IPC+CPC Available in 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