Granted Patent B1

US 10,841,645 · App. 16/708,091 · Granted Nov 17, 2020

Abstract

Claims (40)

1. A storage system comprising:

a memory; and

a controller configured to:

receive a video stream from a host;

identify a plurality of video frame types from the video stream;

store video frames of different video frame types in the memory using different storage options; and

after an elapsed period of time, delete video frames of one video frame type while retaining video frames of another video frame type.

2. The storage system of claim 1 , wherein the different storage options are different levels of endurance.

3. The storage system of claim 1 , wherein:

a first video frame type is an intra-coded picture frame (I-frame); and

a second video frame type is a predicted picture frame (P-frame) or a bidirectional predicted picture frame (B-frame).

4. The storage system of claim 3 , wherein an I-frame is stored with a higher level of endurance than a P-frame or a B-frame.

5. The storage system of claim 1 , wherein the controller is further configured to identify the plurality of video frame types based on information received from the host.

6. The storage system of claim 1 , wherein the memory comprises a three-dimensional memory.

7. The storage system of claim 1 , wherein the storage system is configured to be integrated in the host.

8. The storage system of claim 1 , wherein the storage system is configured to be removably connected with the host.

9. The storage system of claim 1 , wherein the video stream is from a surveillance camera.

10. A method for video frame segregation, the method comprising:

performing the following in a storage system in communication with a host, the storage system comprising a memory:

receiving, from the host, a plurality of video frames extracted from a video stream by the host;

receiving, from the host, instructions regarding a storage parameter to be used by the storage system to store each of the video frames, wherein video frames of different video frame types have different storage parameters;

storing each of the plurality of video frames in the memory using the storage parameters specified by the host; and

after an elapsed period of time, deleting video frames of one video frame type while retaining video frames of another video frame type.

11. The method of claim 10 , wherein the video stream is from a surveillance camera.

12. The method of claim 10 , wherein the different storage parameters are different levels of endurance.

13. The method of claim 10 , wherein:

a first video frame type is an intra-coded picture frame (I-frame); and

a second video frame type is a predicted picture frame (P-frame) or a bidirectional predicted picture frame (B-frame).

14. The method of claim 13 , wherein an I-frame is stored with a higher level of endurance than a P-frame or a B-frame.

15. A storage system comprising:

a memory;

means for storing different video frames from a video stream in the memory using different storage parameters according to a video frame's expected storage lifetime in the memory; and

means for deleting, after an elapsed period of time, video frames of one video frame type while retaining video frames of another video frame type.

16. The storage system of claim 15 , wherein the different storage parameters are different levels of endurance.

17. The storage system of claim 15 , wherein the different video frames comprise:

(i) an intra-coded picture frame (I-frame); and

(ii) a predicted picture frame (P-frame) and/or a bidirectional predicted picture frame (B-frame).

18. The storage system of claim 15 , wherein the memory comprises a three-dimensional memory.

19. The storage system of claim 15 , wherein the storage system is configured to be integrated in a host.

20. The storage system of claim 15 , wherein the storage system is configured to be removably connected with a host.

Assignments (10)