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PCE
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DIFF Subgroup
H04N 21/222

Secondary servers, e.g. proxy server, cable television Head-end

Introduced: January 2011

Title

Titles differ between systems:

IPC: Secondary servers, e.g. proxy server or cable television Head-end

CPC: Secondary servers, e.g. proxy server, cable television Head-end

Full Title

Full titles differ between systems:

IPC:

Selective content distribution, e.g. interactive television or video on demand [VOD] > Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof > Server components or server architectures > Secondary servers, e.g. proxy server or cable television Head-end

CPC:

Selective content distribution, e.g. interactive television or video on demand [VOD] (real-time bi-directional transmission of motion video data H04N7/14 ) > Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof > Server components or server architectures > Secondary servers, e.g. proxy server, cable television Head-end

Additional Content IPC

Secondary server A server belonging to a hierarchy of servers, e.g. servers forming part of distributed systems or local servers for serving mobile terminals

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

IPC defines codes here since 2011.

Child Classifications

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Top Applicants

Top Applicants (IPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 97,396
  2. HUAWEI TECHNOLOGIES COMPANY CN 96,502
  3. SAMSUNG ELECTRONICS COMPANY KR 86,981
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
  5. HUAWEI TECHNOLOGIES COMPANY 55,349
  6. LG ELECTRONICS KR 53,649
  7. CANON 33,341
  8. SONY CORPORATION JP 32,761
  9. ZTE CORPORATION CN 32,274
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327

Top Applicants (CPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498