4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Element or attachment

David I. Chang

Inventor

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Hand-held remote control

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent

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Remote control housing

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent

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System and method for using infrared remote control packet...

Coded data generation or conversion – Code generator or transmitter – With variable pulse spacing or grouping
Reexamination Certificate

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Profile ID: LFUS-PAI-P-739783

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