Disk device and method of generating signal representing head

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said processing circuit includes A/D converting means for digitalizing said analog positional signal which is read by said head and obtains said positional information based upon the positional signal which has been digitalized,
• further including means for changing the input sensitivity of said A/D converting means.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head, and
• said averaging processing obtains a square average value of peak values of said positional signal.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said processing circuit includes a PR equalizer and a learning circuit having an averaging circuit for optimizing said PR equalizer, said averaging processing being performed by the averaging circuit of said learning circuit.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said averaging processing obtains an average value of peak values of said positional signal, and
• said processing circuit includes a PR equalizer and a learning circuit having an averaging circuit for optimizing said PR equalizer, said averaging processing being performed by the averaging circuit of said learning circuit.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said averaging processing obtains an average value of peak-to-peak values of said positional signal, and
• said processing circuit includes a PR equalizer and a learning circuit having an averaging circuit for optimizing said PR equalizer, said averaging processing being performed by the averaging circuit of said learning circuit.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said processing circuit performs said averaging processing of only peak values which are larger than a predetermined value, and
• said processing circuit includes a PR equalizer and a learning circuit having an averaging circuit for optimizing said PR equalizer, said averaging processing being performed by the averaging circuit of said learning circuit.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said processing circuit includes A/D converting means for digitalizing said analog positional signal which is read by said head and obtains said positional information based upon the positional signal which has been digitalized, and
• said processing circuit includes a register for storing the operating conditions of said processing circuit and a port used for presetting said register and outputs said positional information externally of said processing circuit via said port.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said averaging processing obtains an average value of peak values of said positional signal, and
• said processing circuit includes a register for storing the operating conditions of said processing circuit and a port used for presetting said register and outputs said positional information externally of said processing circuit via said port.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said averaging processing obtains an average value of peak-to-peak values of said positional signal, and
• said processing circuit includes a register for storing the operating conditions of said processing circuit and a port used for presetting said register and outputs said positional information externally of said processing circuit via said port.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said processing circuit performs said averaging processing of only peak values which are larger than a predetermined value, and
• said processing circuit includes a register for storing the operating conditions of said processing circuit and a port used for presetting said register and outputs said positional information externally of said processing circuit via said port.

A storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said averaging processing obtains an average value of peak values of said positional signal,
• said processing circuit performs said averaging processing of only peak values which are larger than a predetermined value;
• and
• said processing circuit includes a register for storing the operating conditions of said processing circuit and a port used for presetting said register and outputs said positional information externally of said processing circuit via said port.

As storage device having at least a capability of reading a signal from a recording medium having positioning information and desired data recorded thereon by means of a head, comprising:

• a processing circuit for obtaining positional information representative of the position of said head based upon a positional signal which is obtained by reading said positioning information by said head;
• and
• drive means for moving and positioning said head based upon said positional information which is obtained by said processing circuit,
• wherein said processing circuit obtains said positional information by performing a predetermined averaging processing of said positional signal which is read by said head,
• said averaging processing obtains an average value of peak-to-peak values of said positional signal,
• said processing circuit performs said averaging processing of only peak values which are larger than a predetermined value, and
• said processing circuit includes a register for storing the operating conditions of said processing circuit and a port used for presetting said register and outputs said positional information externally of said processing circuit via said port.

A method for controlling a position of a magnetic head in a storage device including a magnetic disk and the magnetic head, in which writing data into the magnetic disk and reading data out of the magnetic disk is carried out by controlling a position of the magnetic head in accordance with a positional signal stored in the magnetic disk, comprising the steps of:

• obtaining said positional signal from said magnetic disk by utilizing said magnetic head;
• averaging said positional signal;
• and
• controlling the position of said magnetic head in accordance with the result of said said averaging processing;
• wherein said positional signal is an analog signal and said step for averaging includes a step for converting said positional signal into a corresponding digital signal, and
• wherein said step for averaging further includes a step for obtaining peak values of said positional signal in accordance with said digital signal and a root-mean-square value of said peak values.

A method for controlling a position of a magnetic head in a storage device including a magnetic disk and the magnetic head, in which writing data into the magnetic disk and reading data out of the magnetic disk is carried out by controlling a position of the magnetic head in accordance with a positional signal stored in the magnetic disk, comprising the steps of:

• obtaining said position signal from said magnetic disk by utilizing said magnetic head;
• averaging said positional signal;
• and
• controlling the position of said magnetic head in accordance with the result of said said averaging processing;
• wherein said positional signal is an analog signal and said step for averaging includes a step for converting said positional signal into a corresponding digital signal, and
• wherein said step for averaging further includes a step for obtaining peak values of said positional signal in accordance with said digital signal and an average value of absolute values of said peak values.