H03L 7/187 using means for coarse tuning the voltage controlled oscillator of the loop (H03L7/191 - H03L7/195 take precedence)
Introduced: January 1990
Title
Titles differ between systems:
IPC: using means for coarse tuning the voltage controlled oscillator of the loop
CPC: using means for coarse tuning the voltage controlled oscillator of the loop (H03L7/191 - H03L7/195 take precedence)
Full Title
Full titles differ between systems:
Automatic control of frequency or phase; Synchronisation > using a reference signal applied to a frequency- or phase-locked loop > Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop > using a frequency divider or counter in the loop > a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number > using means for coarse tuning the voltage controlled oscillator of the loop
Automatic control of frequency or phase; Synchronisation > using a reference signal applied to a frequency- or phase-locked loop > Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop > using a frequency divider or counter in the loop (H03L7/20, H03L7/22 take precedence) > a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number > using means for coarse tuning the voltage controlled oscillator of the loop (H03L7/191 - H03L7/195 take precedence)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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- H03L 7/189 comprising a D/A converter for generating a coarse tuning voltage since 1990 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