Patent ID: 7907129

Claim:
A method of enabling input into a handheld electronic device of a type comprising a case, an input apparatus, and a processor apparatus, the input apparatus and the processor apparatus being disposed at least partially on the case, the input apparatus comprising a number of vibrational sensors, the processor apparatus comprising a processor and a memory having stored therein at least a first routine that is executable on the processor, the method comprising: sensing a first vibrational result of a contact with a surface of the case; sensing a second vibrational result of the contact within a first predetermined period of time after said sensing the first vibrational result; ignoring input between expiration of the first predetermined period of time and expiration of a second predetermined period of time, the second predetermined period of time being substantially longer than the first predetermined period of time to avoid multiple inputs during a single intended actuation; interpreting the contact as at least one of an input to the processor and an event that is to be ignored; and employing the first and second vibrational results in said interpreting.