METHOD AND APPARATUS FOR EFFICIENT STORAGE OF FREQUENCY VALUES FOR A DISPLAY DEVICE

摘要

A device and corresponding operational method for storing frequency values to a memory of the device, comprising an internal memory and an external memory, are provided. A frequency value in a memory cell of the internal memory is actualized by an increment or a decrement. After a specific number of increments and decrements in the memory cells of the internal memory, a maximum frequency value of the frequency values stored in the memory cells of the internal memory is determined, and the maximum frequency value is transferred to a corresponding memory cell of the external memory. The memory cell of the internal memory that contains the transferred maximum frequency value is reset. After a period, content of each memory cell of the internal and external memory is read, and each memory cell of the internal and external memory is reset.

主权项

1. A method for storing frequency values, comprising:
actualizing a frequency value contained in a memory cell of an internal memory of a device by an increment or a decrement, wherein each of a number of memory cells of the internal memory contains a respective frequency value; after a predetermined number of increments and/or decrements in the memory cells of the internal memory, determining a maximum frequency value of the frequency values in the memory cells of the internal memory, and transferring the maximum frequency value to a corresponding memory cell of an external memory of the device; resetting the memory cell of the internal memory that contains the transferred maximum frequency value; reading content of each memory cell of the internal and external memory after a period of time; and resetting each memory cell in the internal and external memory; and wherein the internal and external memory are components of a display memory of a display, which comprises a number of columns, and the period of time is an update cycle of the display, wherein the increment and respectively the decrement is a hit of a sampled value of a measured signal in a sampled value range and in a time point and respectively in a frequency bin of a pixel of the display corresponding to the memory cell of the internal memory within the update cycle, wherein, for each column of the display, the maximum frequency value is determined from the frequency values in the memory cells of the internal memory corresponding to all pixels of the respective column after a specific number of increments and decrements in the memory cells of the internal memory corresponding to all pixels of the corresponding column, and the read content is for updating the pixels of the display, and wherein each maximum frequency value of several memory cells in the internal memory is transferred in one burst to a specified number of least significant bits in a corresponding memory cell of the external memory, wherein the number of least significant bits in the memory cells of the external memory is comparatively larger than the number of bits in the memory cells of the internal memory.