公开(公告)号：US20200073494A1

公开(公告)日：2020-03-05

申请号：US16257546

申请日：2019-01-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ge Shen ,  Jun Zhang ,  Songhua Hu ,  Yi Zhou

IPC: G06F3/044 ,  G06F3/041

Abstract: A circuit includes a timer to count edges of a clock from an initial count value to a terminal count value and to output a timer signal responsive to the terminal count value being reached. A random number generator circuit generates a plurality of random number values. Each generated random number value is sequentially loaded into the timer as one of the initial count value or the terminal count value. A capacitive sensor circuit determines, responsive to receipt of a plurality of timer signals from the timer, a touch event of a capacitive touch sensor.

公开(公告)号：US11301091B2

公开(公告)日：2022-04-12

申请号：US17015210

申请日：2020-09-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ge Shen ,  Jun Zhang ,  Songhua Hu ,  Yi Zhou

IPC: G06F3/044 ,  G06F3/041

Abstract: A circuit includes a timer to count edges of a clock from an initial count value to a terminal count value and to output a timer signal responsive to the terminal count value being reached. A random number generator circuit generates a plurality of random number values. Each generated random number value is sequentially loaded into the timer as one of the initial count value or the terminal count value. A capacitive sensor circuit determines, responsive to receipt of a plurality of timer signals from the timer, a touch event of a capacitive touch sensor.

公开(公告)号：US10802656B2

公开(公告)日：2020-10-13

申请号：US16257546

申请日：2019-01-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ge Shen ,  Jun Zhang ,  Songhua Hu ,  Yi Zhou

IPC: G06F3/044 ,  G06F3/041

Abstract: A circuit includes a timer to count edges of a clock from an initial count value to a terminal count value and to output a timer signal responsive to the terminal count value being reached. A random number generator circuit generates a plurality of random number values. Each generated random number value is sequentially loaded into the timer as one of the initial count value or the terminal count value. A capacitive sensor circuit determines, responsive to receipt of a plurality of timer signals from the timer, a touch event of a capacitive touch sensor.