Granted Patent B2

US 10,379,772 · App. 15/072,147 · Granted Aug 13, 2019

Abstract

Claims (39)

1. A method for operating a memory device, comprising:

receiving, from a host external to the memory device, compressed data in a subsampled YUV image format by sensing circuitry of an intelligent frame buffer associated with a random access memory (RAM) array of memory cells on the memory device;

configuring a sense amplifier and a compute component in the sensing circuitry for performance of a read operation on data stored by the array, a write operation on received data, and a decompression operation on the compressed data;

decompressing the compressed data using the sense amplifier in the sensing circuitry on the memory device during the decompression operation until the compressed data is decompressed,

wherein the decompressing of the compressed data comprises converting the subsampled YUV image format to a non-subsampled RGB image format in the sensing circuitry of the intelligent frame buffer and is performed without transferring data values involved in the decompression to a processing component external to the sensing circuitry;

directing, by an operations component, the decompressing via bitwise performance of a number of logical operations by operating a plurality of compute components in the sensing circuitry as one-bit processing elements;

storing an image in the non-subsampled RGB image format to the RAM array;

compositing a plurality of images in the non-subsampled RGB image format into a different image using an alpha blending technique; and

either displaying, rendering, projecting, or storing the different image.

2. The method of claim 1 , wherein the method further comprises receiving the compressed data by the intelligent frame buffer on the memory device, the intelligent frame buffer comprising the operations component and the sensing circuitry, the sensing circuitry comprising the plurality of compute components and a corresponding plurality of sense amplifiers.

3. The method of claim 1 , wherein the method further comprises receiving the compressed data by the sensing circuitry of the intelligent frame buffer, the sensing circuitry coupled to a dynamic random access memory (DRAM) array on the memory device.

4. The method of claim 1 , wherein the method further comprises:

coupling a plurality of sense amplifiers and a corresponding plurality of compute components on the memory device in the sensing circuitry; and

wherein each compute component is coupled to a respective one of the sense amplifiers.

5. The method of claim 1 , wherein the method further comprises receiving the compressed data as image data having a reduced bit depth compared to a bit depth stored on the host.

6. The method of claim 1 , wherein the method further comprises receiving the compressed data as image data in JPEG format by the intelligent frame buffer on the memory device.

7. The method of claim 1 , wherein the method further comprises performing the alpha blending and the compositing operations on the decompressed data in the sensing circuitry coupled to a dynamic random access memory (DRAM) array on the memory device.

8. An apparatus, comprising:

a host external to a memory device, the host configured to send compressed data in a subsampled YUV image format;

the memory device comprising circuitry configured to:

receive the compressed data by sensing circuitry of an intelligent frame buffer associated with a random access memory (RAM) array of memory cells on the memory device,

wherein a sense amplifier and a compute component in the sensing circuitry are configured to perform a read operation on data stored by the array, a write operation on received data, and a decompression operation on the compressed data;

perform the decompression operation on the compressed data using the sense amplifier in the sensing circuitry on the memory device during the decompression operation until the compressed data is decompressed,

wherein decompression of the compressed data comprises converting the subsampled YUV image format to a non-subsampled RGB image format in the sensing circuitry of the intelligent frame buffer, which is performed without transferring data values involved in the decompression to a processing component external to the sensing circuitry;

direct, by an operations component, the decompression via bitwise performance of a number of logical operations by operating a plurality of compute components in the sensing circuitry as one-bit processing elements;

store an image in the non-subsampled RGB image format to the RAM array;

composite a plurality of images in the non-subsampled RGB image format into a different image using an alpha blending technique; and

either display, render, project, or store the different image.

9. The apparatus of claim 8 , wherein:

the compressed data is received by the intelligent frame buffer on the memory device;

the intelligent frame buffer comprises the operations component and the sensing circuitry; and

the sensing circuitry comprises the plurality of compute components and a corresponding plurality of sense amplifiers.

10. The apparatus of claim 8 , wherein the sensing circuitry is coupled to a dynamic random access memory (DRAM) array on the memory device.

11. The apparatus of claim 8 , wherein:

a plurality of sense amplifiers is coupled to a corresponding plurality of compute components in the sensing circuitry on the memory device; and

each compute component is coupled to a respective one of the sense amplifiers.

12. The apparatus of claim 8 , wherein the compressed data is received as image data having a reduced bit depth compared to a bit depth stored on the host.

13. The apparatus of claim 8 , wherein the compressed data is received as image data in JPEG format by the intelligent frame buffer on the memory device.

14. The apparatus of claim 8 , wherein alpha blending and compositing operations are performed on the decompressed data in the sensing circuitry coupled to a dynamic random access memory (DRAM) array on the memory device.

Assignments (8)