The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2025
Filed:
Jul. 25, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Anamika Choudhary, New Delhi, IN;
Ramkumar Ramamurthy, Bangalore, IN;
Narendhiran Chinnaanangur Ravimohan, Bangalore, IN;
Lovish Singla, Bangalore, IN;
Meenakshi C, Bangalore, IN;
Bhagyashankar Muthu Kumaresan, Bangalore, IN;
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
In solid state memory devices, garbage collection can be a bottleneck in meeting stringent performance requirements of certain hosts that generate a relatively-large amount of data (e.g., hosts that generate video data). With such hosts, the performance drop caused by background garbage collection can result in video recording failures. The memory device and method presented herein performs background operations in such a way as to enhance sustained performance. In general, a counter is maintained that reflects an amount of memory written to by a host, as well as an amount of memory freed by garbage collection operations. Each step of a garbage collection operation can be performed in response to a value of the counter being greater than a threshold for the step such that there is a balance between memory written and memory freed.