×

System and method generating motor driving signal and method controlling vibration

  • US 9,135,792 B2
  • Filed: 05/10/2013
  • Issued: 09/15/2015
  • Est. Priority Date: 07/12/2012
  • Status: Active Grant
First Claim
Patent Images

1. A system generating a vibration motor driving signal, the system comprising:

  • a first control unit that receives a first input signal, and gain-adjusts the first input signal in response to a reference voltage to generate a first output signal; and

    a second control unit that receives the first output signal, and gain-adjusts the first output signal in response to the reference voltage to generate a second output signal, wherein the second output signal is applied to a vibration motor as the vibration control signal,wherein the first control unit comprisesa first comparator that compares the first output signal and the reference voltage to generate a first comparison signal,first tuning logic that generates a first gain control signal in response to the first comparison signal, anda first gain adjustment unit that gain-adjusts the first input signal in response to the first gain control signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×