Application processor, mobile device having the same, and method of selecting a clock signal for an application processor
AssigneeSamsung Electronics Co., Ltd.
InventorsYoung-Pyo Joo, Taek-Kyun Shin
Life of this patent
Estimating the term…
Abstract
An application processor includes a main central processing device that operates based on an external main clock signal received from at least one external clock source when the application processor is in an active mode, at least one internal clock source that generates an internal clock signal, and a sensor sub-system that processes sensing-data received from at least one sensor module on a predetermined cycle when the application processor is in the active mode or a sleep mode, and that operates based on the internal clock signal or an external sub clock signal received from the external clock source depending on an operating speed required for processing the sensing-data.
Claims18
An application processor comprising:
- a main central processor configured to receive an external clock signal and configured to operate based on the external clock signal;
- an internal clock source configured to generate an internal clock signal;
- and
- a sensor sub-system configured to operate based on the internal clock signal and to process data on a predetermined cycle, wherein the main central processor is configured to operate during an active mode, using an output of the sensor sub-system, the main central processor does not operate during a sleep mode, and the sensor sub-system is configured to operate both during the active mode and during the sleep mode;
- wherein the sensor sub-system changes an operating mode from the sleep mode to the active mode when an operating speed required for processing the data is more than a processing level of the sensor sub-system.
An application processor comprising:
- a main central processor configured to receive an external clock signal and configured to operate based on the external clock signal;
- an internal clock source configured to generate an internal clock signal;
- and
- a sensor sub-system configured to operate based on the internal clock signal, and to receive data from an external device on a predetermined cycle,
- wherein the main central processor is configured to process the data during an active mode, and the sensor sub-system is configured to process the data during a sleep mode;
- and
- wherein the sensor sub-system changes an operating mode from the sleep mode to the active mode when an operating speed required for processing the data is more than a processing level of the sensor sub-system.
An application processor comprising:
- a main central processor configured to receive an external clock signal and configured to operate based on the external clock signal;
- a plurality of internal clock sources configured to generate a plurality of internal clock signals;
- and
- a sensor sub-system configured to operate based on one of the plurality of internal clock signals that is selected depending on a required operating speed for processing data, where in the main central processor is configured to perform an operation using an output of the sensor sub-system;
- where in the main central processor does not operate during a sleep mode, and the sensor sub-system is configured to operate both during an active mode and during the sleep mode;
- and
- wherein the sensor sub-system changes an operating mode from the sleep mode to the active mode when an operating speed required for processing the data is more than a processing level of the sensor sub-system.
Dependencies are inferred from the claim text.