1
Michael Jay Hassel, Bruce Emo: Recording density variation of data tracks. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, August 18, 2015: US09111578 (28 worldwide citation)

Systems and methods are disclosed for recording density variation of data tracks. In some embodiments, an apparatus may comprise a circuit configured to record data to a first track of a data zone at a first recording density, and record data to a second track of the data zone at second recording de ...


2
Se wook Na, In Sik Ryu: Data storage device, storing medium access method and storing medium thereof. Seagate Technology International, Cesari and Reed, Kirk A Cesari, Christian W Best, November 12, 2013: US08583879 (19 worldwide citation)

A data storage device including a storing medium to shingle write and a controller to access the storing medium so that data is sequentially written on the storing medium using a mapping table based on Logical Block Address (LBA) included in a write command.


3
Jonathan Williams Haines, Brett Alan Cook, Luke William Friendshuh, Mark Allen Gaertner: Non-volatile write cache for a data storage system. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, October 15, 2013: US08560770 (18 worldwide citation)

The present disclosure provides a data storage system. In one example, the data storage system includes a data storage media component having a plurality of data storage locations. A first set of the plurality of data storage locations are allocated for a main data storage area. The data storage sys ...


4
Peter S Harllee III: Reader positioning in shingled magnetic recording. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, November 25, 2014: US08896961 (8 worldwide citation)

Systems and methods are disclosed for positioning of a reader element in a data storage device employing shingled recording. In an embodiment, a system may comprise a data storage medium configured to store data in a shingled manner where at least one track is partially overlapped by an adjacent tra ...


5
Michael Allen Seigler, John West Dykes: Environmental-based device operation. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, October 6, 2015: US09152568 (6 worldwide citation)

The disclosure is related to systems and methods for temperature-based device operation. In one example, a device may include a first memory and a temperature detection module adapted to measure a temperature of the device and modify a data storage behavior of the first memory based on the temperatu ...


6
Laszlo Hars: Random number generation system with ring oscillators. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, November 12, 2013: US08583711 (5 worldwide citation)

A random number generation system comprising one or more ring oscillators configured to generate entropy due to accumulated phase drift. A random number generator can include a ring oscillator configured to switch between a first state in which a signal of the ring oscillator oscillates between logi ...


7
Se Wook Na: Method and apparatus for adjustable virtual addressing for data storage. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, November 17, 2015: US09189395 (5 worldwide citation)

Methods and apparatuses for adjusting the size of a virtual band or virtual zone of a storage medium are provided. In one embodiment, an apparatus may comprise a data storage device including a data storage medium having a physical zone; and a processor configured to receive a virtual addressing adj ...


8
Adam Weikal: Limit disc nodes by band usage. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, December 30, 2014: US08922930 (4 worldwide citation)

The present disclosure generally relates to shingled recording systems, such as shingled magnetic recording (SMR). In some embodiments, systems having a data storage device containing a write cache and shingled bands may store new data from a host in the write cache before writing it to shingled tra ...


9
Martin R Furuhjelm: User selectable caching management. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, July 30, 2013: US08499120 (4 worldwide citation)

A data storage device can include at least one non-volatile storage medium, at least one data cache, and a controller configured to perform cache writing operations between the at least one non-volatile storage medium and the at least one data cache based on user-selected caching modes. Also present ...


10
Xiong Liu, Brian T Edgar, Feng Shen, WenXiang Xie, ThanZaw Thein: Rewrite operation for recording bands. Seagate Technology, Cesari & Reed, Kirk A Cesari, Christian W Best, April 14, 2015: US09007710 (3 worldwide citation)

Systems and methods are disclosed for performing a rewrite operation on recording bands of a data storage medium. In some embodiments, data may be read from a target band including a plurality of tracks, and modified. A portion less than all of the modified data is stored to a nonvolatile memory, an ...