Bradford E Golson

US Patent:

8510598, Aug 13, 2013

Filed:

Jan 24, 2011

Appl. No.:

13/012390

Inventors:

Rex Weldon Vedder - Boulder CO, US
Bradford Edwin Golson - Boulder CO, US
Michael Joseph Peters - Fort Collins CO, US

Assignee:

Dot Hill Systems Corporation - Longmont CO

International Classification:

G06F 11/00

US Classification:

714 22, 714 14, 713320

Abstract:

A method for providing reduced power consumption in a computer memory system is provided. The method includes transferring, by a memory controller coupled to a volatile memory, a non-volatile memory, and a buffer, first data from the volatile memory to the buffer. The buffer stores less data than the volatile memory and the non-volatile memory. The method also includes placing the volatile memory into self-refresh mode after transferring the first data to the buffer. The method further includes conveying the first data from the buffer to the non-volatile memory, where the amount of first data exceeds a predetermined threshold. While conveying the first data, the memory controller takes the volatile memory out of self-refresh mode when the amount of first data in the buffer reaches the predetermined threshold. The volatile memory is ready to transfer second data to the buffer when the memory controller is finished transferring the first data.

US Patent:

20110239021, Sep 29, 2011

Filed:

Jan 24, 2011

Appl. No.:

13/012299

Inventors:

Rex Weldon Vedder - Boulder CO, US
Bradford Edwin Golson - Boulder CO, US
Michael Joseph Peters - Fort Collins CO, US

Assignee:

DOT HILL SYSTEMS CORPORATION - Longmont CO

International Classification:

G06F 1/32

US Classification:

713323

Abstract:

A method for providing reduced power consumption in a computer memory system is provided. The method includes calibrating, by a processor, a volatile memory of the computer memory system at a first and a second operating speed, where the second operating speed is higher than the first operating speed. The method also includes operating, by a memory controller coupled to the processor and the volatile memory, the volatile memory at the second operating speed if a main power source provides power to the computer memory system. The method further includes operating, by the memory controller, the volatile memory at the first operating speed if a backup power source provides power to the memory controller and the volatile memory. The backup power source provides power to the memory controller and the volatile memory when there is a loss of main power to the computer memory system.

US Patent:

58729976, Feb 16, 1999

Filed:

Feb 14, 1997

Appl. No.:

8/800394

Inventors:

Bradford E. Golson - Boulder CO

Assignee:

Exabyte Corporation - Boulder CO

International Classification:

G06F 1300

US Classification:

395872

Abstract:

A processor (50) is connected to use information supplied by a SCSI controller (32) and a buffer manager (36) to dynamically determines a motion threshold and a reconnect threshold for a buffer memory (56) of a SCSI target device, such as a magnetic tape drive (30). The motion threshold is utilized in comparison with a buffer fill level pointer to determine when transport of the storage media (31) is to be restarted. The reconnect threshold is utilized in comparison with the buffer fill level pointer to determine when the target device can reconnect to the SCSI bus (20).