18. A computing device, comprising: a case; a processor positioned within the case; a memory coupled to the processor, the memory storing a reference signal template; and a force sensitive sensor positioned on the case and coupled to the processor, wherein the processor is configured with processor-executable instructions to perform operations comprising: receiving an electrical signal from the force sensitive sensor; comparing the received electrical signal to each of a plurality of reference signal templates; calculating cross-correlation values of the received electrical signal and each of the plurality of reference signal templates; determining a best match reference signal template for the received electrical signal based on the cross-correlation values; identifying a functionality associated with the best match reference signal template; and implementing the identified functionality on the computing device.
18. A computing device, comprising: a case; a processor positioned within the case; a memory coupled to the processor, the memory storing a reference signal template; and a force sensitive sensor positioned on the case and coupled to the processor, wherein the processor is configured with processor-executable instructions to perform operations comprising: receiving an electrical signal from the force sensitive sensor; comparing the received electrical signal to each of a plurality of reference signal templates; calculating cross-correlation values of the received electrical signal and each of the plurality of reference signal templates; determining a best match reference signal template for the received electrical signal based on the cross-correlation values; identifying a functionality associated with the best match reference signal template; and implementing the identified functionality on the computing device. 40. The computing device of claim 18 , wherein the processor is configured with processor-executable instructions to perform operations further comprising applying a condition-specific weighting factor to the correlation values.