Seagate Technology Incorporated

Hiau Choon Kee

Myint Ngwe

Ming Jin

Quek Leong Choo

Liu Li

Zhi Ye

Hong Li Sun

Kian Wai Ng

Techniques for data recovery from a data block wherein portions of the data block are written at different off-track positions are described. For example, portions of a data block can be read separately for each on-track and off-track position in the data block; then, the separately read portions can be recombined into a recovered data block.

Partial-block off-track data recovery

In general, this disclosure describes read recovery techniques for data storage devices that use soft information associated with multiple read operations to detect data. Specifically, the read recovery techniques comprise computing soft information for each bit detected during a first read operation of a data storage medium, computing soft information for each bit detected during a second read operation of the data storage medium and averaging the soft information computed during the first and second read operations to determine the value of each of the bits.

Read error recovery using soft information

Growing community of inventors

Singapore, Singapore

Hiau Choon Kee