Abstract: An application processor and a system on chip (SoC) that incorporates the application processor are provided. The application processor includes a first core configured to process first data per unit time, a second core configured to process second data larger than the first data per unit time, and a lookup table configured to determine whether to activate the first core or the second core based on at least one of an analysis result of a message signal received by a communications processor, a sensing signal supplied to the application processor and a power level supplied to the communications processor.

Abstract: A low-power synchronizer circuit, a data processing circuit that incorporates the synchronizer circuit, and a synchronization method are provided. The synchronizer circuit includes a delay circuit for receiving and delaying an asynchronous input signal, a first flip-flop having an input terminal connected to an output terminal of the delay circuit, a clock terminal for receiving the asynchronous input signal, and a reset terminal for receiving the asynchronous input signal, a synchronizer connected to an output terminal of the first flip-flop, and a clock-gating circuit for receiving a clock signal and determining whether to supply the clock signal to the synchronizer in response to one of a first output value of the delay circuit and a second output value of the first flip-flop and a third output value of the synchronizer.

Abstract: A method of performing a dynamic voltage and frequency scaling operation comprises controlling a clock management unit (CMU) to predict an operating state of a central processing unit (CPU) and to provide operating frequency information to a power management integrated circuit (PMIC) based on the predicted operating state of the CPU, the operating frequency information indicating a change of an operating frequency of an application processor, and controlling the PMIC to change an operating voltage of the application processor based on the operating frequency information provided from the clock management unit.

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.

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.

Abstract: In a method of and computing system for designing or modifying a design of an integrated circuit including a combinational logic and a scan chain, at least one flip-flop satisfying a predetermined condition is detected from among a plurality of flip-flops included in the scan chain by analyzing the combinational logic, and the detected flip-flop is replaced with a settable flip-flop that is set during a scan test for the integrated circuit, a resettable flip-flop that is reset during the scan test, or a settable-and-resettable flip-flop that is set or reset during the scan test.

Abstract: A method for operating a system on chip includes receiving an acceleration request signal generated upon execution of an application program, in response to receipt of the acceleration request signal, comparing a current usage of a central processing unit (CPU) with a threshold value to generate a comparison signal, and performing switching between heterogeneous accelerators to accelerate a function executed by the application program in response to the comparison signal.

Abstract: A contactless user-interface (UI) motion recognizing device and method of controlling the same are provided. The method includes: obtaining a left-eye image and a right-eye image; determining an object position of an object in the obtained left-eye image and the obtained right-eye image; determining an object brightness of the object; determining depth information of the object using the determined object brightness; determining a three-dimensional (3D) object position of the object using the determined object position and the determined depth information; determining an object moving velocity based on the determined 3D object position and a previous 3D object position; and determining a UI pattern based on the determined 3D object position and the determined object moving velocity, and executing an operation according to the determined UI pattern.

Abstract: A mobile device and a computational system including same are described. The mobile device includes a sensor unit having a motion sensor and/or a touch sensor that provides sensing information. The sensing information is applied to a universal serial bus user interface (USB UI) data generation unit and is changed into USB UI data before being output as USB UI data using a USB communication technique.

Abstract: A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data.

Abstract: A semiconductor device including a first function block operating at a first operation voltage having a first range and for generating a data signal, a second function block operating at a second operation voltage having a second range, and a voltage level control unit for performing or not performing a level shifting operation on a voltage level of the data signal depending on the existence or non-existence of a difference between the first operation voltage and the second operation voltage, and for transmitting a level-shifted data signal or the data signal to the second function block.

Abstract: Disclosed is an integrated circuit device including a plurality of power domain blocks, which includes a core power domain block. A power control circuit is configured to control power supplied to each of the plurality of power domain blocks independently responsive to control communication from the core power domain block. The power control circuit includes a plurality of power clusters corresponding to the plurality of power domain blocks, respectively. The plurality of power clusters control power supplied to the plurality of power domain blocks, respectively, independently responsive to the control communication from the core power domain block.

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.

Abstract: A contactless user-interface (UI) motion recognizing device and method of controlling the same are provided. The method includes: obtaining a left-eye image and a right-eye image; determining an object position of an object in the obtained left-eye image and the obtained right-eye image; determining an object brightness of the object; determining depth information of the object using the determined object brightness; determining a three-dimensional (3D) object position of the object using the determined object position and the determined depth information; determining an object moving velocity based on the determined 3D object position and a previous 3D object position; and determining a UI pattern based on the determined 3D object position and the determined object moving velocity, and executing an operation according to the determined UI pattern.

Abstract: A method of performing a dynamic voltage and frequency scaling operation comprises controlling a clock management unit (CMU) to predict an operating state of a central processing unit (CPU) and to provide operating frequency information to a power management integrated circuit (PMIC) based on the predicted operating state of the CPU, the operating frequency information indicating a change of an operating frequency of an application processor, and controlling the PMIC to change an operating voltage of the application processor based on the operating frequency information provided from the clock management unit.

Abstract: A method of controlling power consumption of a portable device includes monitoring whether the portable device has connected to a docking station; and selecting and executing one of a plurality of power consumption controlling algorithms according to a monitoring result.

Abstract: A method for operating a system on chip includes receiving an acceleration request signal generated upon execution of an application program, in response to receipt of the acceleration request signal, comparing a current usage of a central processing unit (CPU) with a threshold value to generate a comparison signal, and performing switching between heterogeneous accelerators to accelerate a function executed by the application program in response to the comparison signal.

Abstract: A semiconductor device including a first function block operating at a first operation voltage having a first range and for generating a data signal, a second function block operating at a second operation voltage having a second range, and a voltage level control unit for performing or not performing a level shifting operation on a voltage level of the data signal depending on the existence or non-existence of a difference between the first operation voltage and the second operation voltage, and for transmitting a level-shifted data signal or the data signal to the second function block.

Abstract: A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data.

Abstract: A mobile device and a computational system including same are described. The mobile device includes a sensor unit having a motion sensor and/or a touch sensor that provides sensing information. The sensing information is applied to a universal serial bus user interface (USB UI) data generation unit and is changed into USB UI data before being output as USB UI data using a USB communication technique.