CPC Subgroup Additional Only
H04N 2201/04781 Controlling the phase of the signals
Full Title
Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof > Scanning arrangements > Detection, control or error compensation of scanning velocity or position > Control or error compensation of scanning position or velocity > by controlling the position of the scanned image area (H04N2201/04755, H04N2201/04756 take precedence) > by controlling the timing of the signals, e.g. by controlling the frequency o phase of the pixel clock > Controlling the phase of the signals
3 direct subcodes
Child Classifications
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- H04N 2201/04782 using a clock signal composed from a number of clock signals of different frequencies
- H04N 2201/04784 using one or more clock signals selected from a number of clock signals of different phases
- H04N 2201/04786 Controlling a start time, e.g. for output of a line of data (H04N2201/04784 takes precedence)
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498