Method for displaying selectable keys in an optical disc reproducing system and an apparatus thereof

  • US 6,404,418 B1
  • Filed: 12/24/1997
  • Issued: 06/11/2002
  • Est. Priority Date: 09/24/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for identifying at least one enabled selectable key, comprising:

  • an interface unit to receive user input indicating a selected key; and

    a control unit to determine if said input corresponds to an enabled selection and visually discriminating said enabled selectable keys from non-enabled selectable keys when said determining step determines said selected key is not an enabled selectable key.

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