US 11,940,863 B2
Low-power wakeup pattern detection of multiple data streams
Andreas Michael Schoch, Moosburg ab der Isar (DE); and Ernst Muellner, Munich (DE)
Assigned to Texas Instruments Incorporated, P.O. Box, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Nov. 16, 2021, as Appl. No. 17/527,201.
Application 17/527,201 is a continuation of application No. 16/727,116, filed on Dec. 26, 2019, granted, now 11,204,638.
Prior Publication US 2022/0075442 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 1/32 (2019.01); G06F 1/12 (2006.01); G06F 1/3287 (2019.01)
CPC G06F 1/3287 (2013.01) [G06F 1/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device comprising:
a data index register, wherein the data index register is configured to be activated through sampling of a data stream;
a wakeup pattern shift register that is configured to store wakeup pattern bits;
a comparator that is configured to compare an updated data index register to a wakeup pattern bit from the wakeup pattern shift register to produce an output;
a trigger device coupled to the comparator, wherein the trigger device is configured to generate a triggering signal based on the output of the comparator; and
a microcontroller coupled to the trigger device, the microcontroller configured to transition to a high-power mode in response to the received triggering signal.