TREA

Coding in connection with keyboards or like devices

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Industry

  • CPC
  • H03M11/00
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Parent Industries

HELECTRICITY H03Electronic circuits H03MCODING DECODING CODE CONVERSION IN GENERAL

Current Industry

H03M11/00Coding in connection with keyboards or like devices

Sub Industries

H03M11/003Phantom keys detection and prevention H03M11/006Measures for preventing unauthorised decoding of keyboards H03M11/02Details H03M11/04Coding of multifunction keys H03M11/06by operating the multifunction key itself in different ways H03M11/08by operating selected combinations of multifunction keys H03M11/10by methods based on duration or pressure detection of keystrokes H03M11/12by operating a key a selected number of consecutive times whereafter a separate enter key is used which marks the end of the series H03M11/14by using additional keys H03M11/16wherein the shift keys are operated after the operation of the multifunction keys H03M11/18wherein the shift keys are operated before the operation of the multifunction keys H03M11/20Dynamic coding H03M11/22Static coding H03M11/24using analogue means H03M11/26using opto-electronic means
Industries