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US 11,295,764 B1Granted
Data storage device transmitting configuration data to a preamp circuit over a read line
AssigneeWestern Digital Technologies, Inc.
InventorsJonas A. Goode, Richard L. Galbraith, Joey M. Poss, John T. Contreras
Life of this patent
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Abstract
A data storage device is disclosed comprising a head actuated over a magnetic media, wherein the head comprises a write element and a first read element. A preamp circuit comprising an interface includes at least a write line associated with the write element of the head and a first read line associated with the first read element of the head. A first read signal is received from the preamp circuit over the first read line during a read operation, and configuration data is transmitted to the preamp circuit over the first read line during a write operation.
Claims20
A data storage device comprising:
- a magnetic media;
- a head actuated over the magnetic media, wherein the head comprises a write element and a first read element;
- a preamp circuit comprising an interface comprising at least a write line associated with the write element of the head and a first read line associated with the first read element of the head;
- and
- control circuitry configured to:
- receive a first read signal from the preamp circuit over the first read line during a read operation;
- transmit write data to the preamp circuit over the write line during a write operation;
- and
- concurrently transmit configuration data to the preamp circuit over the first read line during the write operation.
6 more elements
A data storage device comprising:
- a magnetic media;
- a head actuated over the magnetic media, wherein the head comprises a write element and a first read element;
- a preamp circuit comprising an interface comprising at least a write line associated with the write element of the head and a first read line associated with the first read element of the head;
- and
- control circuitry configured to:
- receive a first read signal from the preamp circuit over the first read line during a read operation;
- and
- transmit configuration data to the preamp circuit over the first read line during a write operation, wherein the configuration data configures at least one write parameter of the write operation, wherein the write parameter comprises at least one of an amplitude of a laser current, an overshoot amplitude of the laser current, or an overshoot duration of the laser current.
5 more elements
A data storage device comprising:
- a magnetic media;
- a head actuated over the magnetic media, wherein the head comprises a write element and a first read element;
- a preamp circuit comprising an interface comprising at least a write line associated with the write element of the head and a first read line associated with the first read element of the head;
- and
- control circuitry configured to:
- receive a first read signal from the preamp circuit over the first read line during a read operation;
- and
- transmit configuration data to the preamp circuit over the first read line during a write operation, wherein the configuration data configures at least one
- write parameter of the write operation, wherein the write parameter comprises at least one of an amplitude of a write assist bias, an overshoot amplitude of the write assist bias, or an overshoot duration of the write assist bias.
6 more elements
A data storage device comprising:
- a magnetic media;
- a head actuated over the magnetic media, wherein the head comprises:
- a write element;
- a first read element;
- and
- a second read element;
- and
- a preamp circuit comprising an interface comprising:
- at least a write line associated with the write element of the head;
- a first read line associated with the first read element of the head;
- and
- a second read line associated with the second read element of the head;
- and
- control circuitry configured to:
- receive a first read signal from the preamp circuit over the first read line during a read operation;
- transmit configuration data to the preamp circuit over the first read line during a write operation;
- receive a second read signal from the preamp circuit over the second read line during the read operation;
- and
- transmit configuration data to the preamp circuit over the first read line and the second read line during the write operation.
16 more elements
A data storage device comprising:
- a magnetic media;
- a head actuated over the magnetic media, wherein the head comprises a write element and a first read element;
- a preamp circuit comprising an interface comprising at least a write line associated with the write element of the head and a first read line associated with the first read element of the head;
- and
- control circuitry configured to:
- receive a first read signal from the preamp circuit over the first read line during a read operation;
- and
- transmit configuration data to the preamp circuit over the first read line, wherein the configuration data is for configuring at least one write parameter of a write operation, wherein the write parameter comprises at least one of an amplitude of a laser current, an overshoot amplitude of the laser current, or an overshoot duration of the laser current.
5 more elements
A data storage device comprising:
- a magnetic media;
- a head actuated over the magnetic media, wherein the head comprises a write element and a first read element;
- a preamp circuit comprising an interface comprising at least a write line associated with the write element of the head and a first read line associated with the first read element of the head;
- and
- a means for receiving a first read signal from the preamp circuit over the first read line during a read operation;
- a means for transmitting configuration data to the preamp circuit over the first read line a means for disabling and enabling the means for receiving a first read signal the preamp circuit over the first read line during a read operation;
- and
- a means for disabling and enabling the means for transmitting configuration data to the preamp circuit over the first read line, wherein the configuration data configures at least one write parameter of a write operation.
5 more elements
A preamp circuit comprising:
- an interface comprising:
- at least a write line associated with a write element of a head;
- a first read line associated with a first read element of the head;
- and
- a second read line associated with a second read element of the head;
- a first output amplifier configured to transmit a first read signal associated with the first read element over the first read line during a read operation;
- a second output amplifier configured to transmit a second read signal associated with the second read element over the second read line during the read operation;
- a first input amplifier configured to receive configuration data over the first read line, wherein the configuration data is for configuring at least one write parameter of a write operation;
- and
- a second input amplifier configured to receive configuration data over the second read line, wherein the configuration data is for configuring the at least one write parameter of the write operation.
7 more elements
Dependencies are inferred from the claim text.