Abstract: A memory access method and a memory access system are provided. The memory access method is applicable to the memory access system. The memory access system includes a programmable logic device (PLD), a processor, a volatile memory, and a non-volatile memory. The PLD is disposed among the processor, the volatile memory, and the non-volatile memory. The memory access method includes: storing, by the PLD, data stored in the non-volatile memory to the volatile memory when the memory access system is started; and accessing, by the processor, the data from the volatile memory through the PLD.

Abstract: A memory access method and a memory access system are provided. The memory access method is applicable to the memory access system. The memory access system includes a programmable logic device (PLD), a processor, a volatile memory, and a non-volatile memory. The PLD is disposed among the processor, the volatile memory, and the non-volatile memory. The memory access method includes: storing, by the PLD, data stored in the non-volatile memory to the volatile memory when the memory access system is started; and accessing, by the processor, the data from the volatile memory through the PLD.

Abstract: A projection apparatus and a method for protecting the projection apparatus are provided. The projection apparatus includes a light source module, a light source control module, and an optical engine module. The light source module includes a light source and light conversion unit. The light source emits an illumination beam, and the light conversion unit converts the illumination beam into a plurality of color beams with different colors. The light source control module includes a light sensing unit and a control unit. The light sensing unit senses light intensities of the color beams, and the control unit determines whether to turn off the light source according to at least one of a light intensity proportion of the color beams and a sum of the light intensities of the color beams. The optical engine module receives the color beams to generate an image beam.

Abstract: A projection apparatus and a method for protecting the projection apparatus are provided. The projection apparatus includes a light source module, a light source control module, and an optical engine module. The light source module includes a light source and light conversion unit. The light source emits an illumination beam, and the light conversion unit converts the illumination beam into a plurality of color beams with different colors. The light source control module includes a light sensing unit and a control unit. The light sensing unit senses light intensities of the color beams, and the control unit determines whether to turn off the light source according to at least one of a light intensity proportion of the color beams and a sum of the light intensities of the color beams. The optical engine module receives the color beams to generate an image beam.