Methods of using embedded disconnected circuits in magnetic storage media of data storage devices
AssigneeWestern Digital Technologies, Inc.
InventorsPankaj Mehra, Bernd Lamberts, Sridhar Chatradhi, Jordan A. Katine
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Abstract
Disclosed herein are methods of using embedded disconnected circuits (EDC) in magnetic storage media to assist in reading data from and writing data to the magnetic storage media. A wireless activation signal is used to activate an EDC in a magnetic storage media. Once activated, the EDC may assist to record data in and/or read data from one or more memory locations of the magnetic storage media.
Claims14
A method of recording data on a magnetic storage media comprising a first storage location, a first embedded disconnected circuit (EDC) configured to assist in recording first data in the first storage location, a second storage location, and a second EDC configured to assist in recording second data in the second storage location, the method comprising:
- activating the first EDC but not the second EDC;
- while the first EDC is activated and the second EDC is deactivated, recording the first data in the first storage location;
- activating the second EDC but not the first EDC;
- and
- while the second EDC is activated and the first EDC is deactivated, recording the second data in the second storage location.
A method of recording data on a magnetic storage media comprising a first storage location in a first recording layer, a second storage location in a second recording layer, the first storage location being a closest storage location in the first recording layer to the second storage location, and an embedded disconnected circuit (EDC) disposed adjacent to the second recording layer, the method comprising:
- activating the EDC;
- recording data in the second storage location while the EDC is activated;
- deactivating the EDC;
- and
- recording data in the first storage location while the EDC is deactivated,
- wherein the recording data in the first storage location does not overwrite the data recorded in the second storage location.
A method, comprising:
- activating a first embedded disconnected circuit (EDC) embedded entirely within an EDC layer of a magnetic storage media, the EDC layer being situated above or below a recording layer of the magnetic storage media, wherein activating the first EDC comprises transmitting a first wireless activation signal;
- while the first EDC is activated, recording data in or reading data from a first memory location situated in the recording layer of the magnetic storage media, the memory location being disconnected from the first EDC;
- transmitting a second wireless activation signal to activate a second EDC of the magnetic storage media;
- and
- while the second EDC is activated, recording data in or reading data from a second memory location of the magnetic storage media,
- wherein a characteristic of the first wireless activation signal differs from a corresponding characteristic of the second wireless activation signal.
Dependencies are inferred from the claim text.