METHODS AND APPARATUSES FOR ULTRA-LOW-POWER SYSTEM ON A CHIP (SoC) ACTIVITY WEARABLE DEVICES
OwnerUzi Zangi, Pavel Stessininventors
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Abstract
An always-on chip incorporated inside an activity wearable device implemented as a System-On-a-Chip (SoC). The device includes a MCU and DSP and audio CODEC and a BLE circuit to detect user activation commands. The user wakeup command is used to wake up the main application processor on the system. Ultra low power consumption may be realized by implementing the CMOS die using sub-threshold technology and by using power and battery management algorithms based on the human activity detected by the integrated sensors.
Claims6
A method to implement an always-on chip incorporated into a wearable device or Smart Phone or Smart Watch or IoT devices implemented as a system on a chip comprising one or more of the following blocks:
- An audio ADC+DAC for audio output and input;
- An audio Compressor+Decompressor for playback and recording of compressed audio;
- A wireless data transmission functionality for data transmission and or low-power protocol processing;
- and
- An integrated microcontroller unit and or integrated DSP unit to implement a data analysis mechanism, a data communication mechanism, audio input and output and wakeup gesture detection;
- Finally included also a Power Management Unit (PMU), a Clock Management Unit (CMU) and a Battery Management Unit (BMU).
Dependencies are inferred from the claim text.