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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G06F 13/28

using burst mode transfer, e.g. direct memory access , cycle steal (G06F13/32 takes precedence)

Introduced: January 1985

Title

Titles differ between systems:

IPC: using burst mode transfer, e.g. direct memory access, cycle steal

CPC: using burst mode transfer, e.g. direct memory access , cycle steal (G06F13/32 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units > Handling requests for interconnection or transfer > for access to input/output bus > using burst mode transfer, e.g. direct memory access, cycle steal

CPC:

Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units (interface circuits for specific input/output devices G06F3/00 ; multiprocessor systems G06F15/16 ) > Handling requests for interconnection or transfer > for access to input/output bus > using burst mode transfer, e.g. direct memory access , cycle steal (G06F13/32 takes precedence)

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

IPC defines codes here since 1985.

Child Classifications

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Top Applicants

Top Applicants (IPC)

Class G06,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 66,669
  2. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,313
  3. MICROSOFT TECHNOLOGY LICENSING US 41,918
  4. GOOGLE US 32,969
  5. SGCC(STATE GRID CORPORATION OF CHINA) 30,822
  6. INTEL CORPORATION US 30,010
  7. TENCENT TECHNOLOGY (SHENZHEN) COMPANY 28,235
  8. HUAWEI TECHNOLOGIES COMPANY CN 26,079
  9. APPLE US 21,891
  10. HUAWEI TECHNOLOGIES COMPANY 20,505

Top Applicants (CPC)

Class G06,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 76,952
  2. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,841
  3. MICROSOFT TECHNOLOGY LICENSING US 44,778
  4. GOOGLE US 35,735
  5. INTEL CORPORATION US 32,087
  6. HUAWEI TECHNOLOGIES COMPANY CN 30,572
  7. TENCENT TECHNOLOGY (SHENZHEN) COMPANY 25,023
  8. APPLE US 23,482
  9. SGCC(STATE GRID CORPORATION OF CHINA) 22,548
  10. HUAWEI TECHNOLOGIES COMPANY 20,917