Abstract: An Android-based system for touch input handling is provided. The system includes an interactive hardware and an application processor. The interactive hardware includes a display panel and a touch panel that runs a touch firmware. The application processor is coupled to the interactive hardware, and runs an application program and a touch driver. The application processor further converts a hardware synchronization signal of the display panel into a software synchronization signal, and generates an application synchronization signal based on the software synchronization signal. Additionally, the application processor further generates an input synchronization signal that is synchronized with the application synchronization signal. The expiration of the input synchronization signal triggers the touch firmware to collect the touch event and propagate the touch event up to the application program through the touch driver.

Abstract: User equipment (UE) for managing out-of-order packets is provided. The UE may include a radio frequency (RF) signal processing device, a management module, a filter module and a multi-reorder queue circuit. The RF signal processing device may receive a plurality of packets from a network node. The management module may collect network information of the network node and application information and generate a plurality of filter rules according to the network information and the application information. The filter module may receive the filter rules from the management module and allocate a plurality of out-of-order packets of the packets to different reorder queues according to the filter rules, wherein each reorder queue corresponds to a different reorder timer. The multi-reorder queue circuit includes the reorder queues. The multi-reorder queue circuit determines how to push each out-of-order packet to its corresponding application through a TCP/IP stack.

Abstract: A method for timestamping and synchronization with high-accuracy timestamps in low-power sensor systems is provided. The method is performed by a device and includes: receiving, by a sensor hub of the device, an interrupt signal from a sensor and performing an interrupt service routine (ISR) to obtain an interrupt timestamp obtained by a latch, wherein the interrupt timestamp is obtained from an always-running unified time reference; obtaining, by the sensor hub, sensor data from the sensor; predicting, by the sensor hub, a prediction timestamp based on an amount of sensor data and the interrupt timestamp by using a filtering algorithm; and correcting, by the sensor hub, a timestamp of each sensor data based on the prediction timestamp.

Abstract: A method for processing instant application messages is provided. The method is performed by a device and includes: receiving, by a modem of the device, an instant application message transmitted from an application server to an application processor of the device; determining, by the modem, whether the application processor is in a sleeping mode and the instant application message is an emergency message; and transmitting, by the modem, the instant application message to a co-processor of the device to cache the instant application message when the application processor is in the sleeping mode and the instant application message is not an emergency message.

Abstract: User equipment (UE) for managing out-of-order packets is provided. The UE may include a radio frequency (RF) signal processing device, a management module, a filter module and a multi-reorder queue circuit. The RF signal processing device may receive a plurality of packets from a network node. The management module may collect network information of the network node and application information and generate a plurality of filter rules according to the network information and the application information. The filter module may receive the filter rules from the management module and allocate a plurality of out-of-order packets of the packets to different reorder queues according to the filter rules, wherein each reorder queue corresponds to a different reorder timer. The multi-reorder queue circuit includes the reorder queues. The multi-reorder queue circuit determines how to push each out-of-order packet to its corresponding application through a TCP/IP stack.

Abstract: A method for processing instant application messages is provided. The method is performed by a device and includes: receiving, by a modem of the device, an instant application message transmitted from an application server to an application processor of the device; determining, by the modem, whether the application processor is in a sleeping mode and the instant application message is an emergency message; and transmitting, by the modem, the instant application message to a co-processor of the device to cache the instant application message when the application processor is in the sleeping mode and the instant application message is not an emergency message.

Abstract: A method for timestamping and synchronization with high-accuracy timestamps in low-power sensor systems is provided. The method is performed by a device and includes: receiving, by a sensor hub of the device, an interrupt signal from a sensor and performing an interrupt service routine (ISR) to obtain an interrupt timestamp obtained by a latch, wherein the interrupt timestamp is obtained from an always-running unified time reference; obtaining, by the sensor hub, sensor data from the sensor; predicting, by the sensor hub, a prediction timestamp based on an amount of sensor data and the interrupt timestamp by using a filtering algorithm; and correcting, by the sensor hub, a timestamp of each sensor data based on the prediction timestamp.