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IPC Main Group
H03K 7/00

Modulating pulses with a continuously-variable modulating signal

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
ELECTRICITY
Class:
ELECTRONIC CIRCUITRY
Subclass:
PULSE TECHNIQUE

Related Keywords

modulating AMPLITUDE of electric pulsesFREQUENCY modulation of pulsesMODULATION of pulsesPHASE(S) modulation of pulses

5 direct subcodes

Child Classifications

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  • H03K 7/02 Amplitude modulation, i.e. PAM
  • H03K 7/04 Position modulation, i.e. PPM
  • H03K 7/06 Frequency or rate modulation, i.e. PFM or PRM
  • H03K 7/08 Duration or width modulation
  • H03K 7/1 Combined modulation, e.g. rate modulation and amplitude modulation

Top Applicants

Top 10 applicants by patent filingsfor class H03, 2013–2023, worldwide · Source: EPO PATSTAT

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