Abstract: Apparatuses and methods are disclosed for implementing an inter-processor communication channel including power-down functionality. In one embodiment, the apparatus may comprise a first integrated circuit (IC), a second IC coupled to the first IC via a communication interface, wherein the first IC is in one or more low power states and unable to monitor the communication interface. The apparatus may further comprise an inter-processor communication (IPC) channel coupled between the first and second ICs, wherein the IPC channel is separate from the communication interface and wherein the second IC generates at least one advisory signal to the first IC via the IPC channel.

Abstract: Apparatuses and methods are disclosed for implementing an inter-processor communication channel including power-down functionality. In one embodiment, the apparatus may comprise a first integrated circuit (IC), a second IC coupled to the first IC via a communication interface, wherein the first IC is in one or more low power states and unable to monitor the communication interface. The apparatus may further comprise an inter-processor communication (IPC) channel coupled between the first and second ICs, wherein the IPC channel is separate from the communication interface and wherein the second IC generates at least one advisory signal to the first IC via the IPC channel.

Abstract: Disclosed embodiments relate to the alignment of images, particularly in HDR imaging applications. In one embodiment, image pyramids may be generated using a reference image and a source image. A difference bitmap is generated for each level of the image pyramids and is evaluated over nine possible one-pixel shift combinations in the x and y directions {?1, 0, 1 }. The difference bitmap is divided into tiles and analyzed and, for each pyramid level beginning from the top level, an optimal shift direction is determined as the shift exhibiting the fewest pixel difference counts across all tiles. The tiles are then pruned using a threshold such that only the tiles contributing up to the threshold are projected to the subsequent pyramid level. The alignment vector for each level is aggregated, and a final alignment vector is determined and used to shift the source image.

Abstract: Apparatuses and methods are disclosed for implementing an inter-processor communication channel including power-down functionality. In one embodiment, the apparatus may comprise a first integrated circuit (IC), a second IC coupled to the first IC via a communication interface, wherein the first IC is in one or more low power states and unable to monitor the communication interface. The apparatus may further comprise an inter-processor communication (IPC) channel coupled between the first and second ICs, wherein the IPC channel is separate from the communication interface and wherein the second IC generates at least one advisory signal to the first IC via the IPC channel.