IPC Subgroup
H03M 13/47 Error detection, forward error correction or error protection, not provided for in groups
Introduced: January 2000
Last revised: January 2006
Full Title
Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes > Error detection, forward error correction or error protection, not provided for in groups
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- CODING, DECODING OR CODE CONVERSION, IN GENERAL
3 direct subcodes
Child Classifications
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- H03M 13/49 Unidirectional error detection or correction
- H03M 13/51 Constant weight codes; n-out-of-m codes; Berger codes
- H03M 13/53 Codes using Fibonacci numbers series
Top Applicants
Top 10 applicants by patent filingsfor 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