4. Active solid-state devices (e.g., transistors, solid-state diode
  5. Field effect device
  6. Responsive to non-optical, non-electrical signal

Chan Woo Park

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active

Apparatus for auto focusing

Photography – With exposure objective focusing means – focusing aid – or... – Lens drive circuit or motor structure
Reexamination Certificate

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Cellular phone

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Radio transceiver
Design Patent

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Cellular phone

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Radio transceiver
Design Patent

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Digital/analog converter

Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate

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Digital/analog converter

Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2184143

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