TH49013A - Methods and clocking devices for storage media - Google Patents

Abstract

DC60 Methods and clocking devices for the rotating storage medium use the frequency. A single reference is obtained from which the frequency, signal pattern, servo pattern, and frequency are obtained. Rotation of the storage medium During the servo track writing process, the clock track will be Read from the storage medium to obtain a clock signal with the clock frequency and signal phase. The servo pattern is digitally adjusted in relation to the clock signal so that the pattern signal The servo model has the corresponding phase with the clock signal. Methods and clocking devices for the rotating storage medium use the frequency. A single reference is obtained from which the frequency, signal pattern, servo pattern, and frequency are obtained. Rotation of the storage medium During the servo track writing process, the clock track will be Read from the storage medium to obtain a clock signal with the clock frequency and signal phase. The servo pattern is digitally adjusted in relation to the clock signal so that the pattern signal The servo is phase with the clock signal.

Claims (9)

1. A method of writing servo tracks to a storage medium with at least tracks. The clock signal is on it which is used to control the phase of the servo track written to the storage medium, the methods which include: rotating the storage media at the rotational frequency derived from the reference frequency; The attainment of a servo pattern signal with a pattern frequency from that reference frequency; Reading the clock track from the said storage medium to obtain a available clock Clock frequency; The phase adjustment of the servo pattern signal is related to the clock signal by The reception of the reference frequency phase that the servo pattern signal can achieve is derived from it so that The servo pattern signal is in sync with the clock signal; And, writing servo tracks in accordance with the servo pattern signal to the storage media. 2. Method according to claim 1, where the phase of the servo pattern signal is Digitally adjust relative to the clock signal so that the servo pattern signal is in sync with the clock signal. 3. Method according to claim No. 2, which consists of frequency and pattern switching. Between one of several discontinuous values to adjust the phase of the servo pattern signal. Relative to the clock signal 4. Method according to claim 2, where the digital phase-lock loop is used to adjust the phase of The servo pattern signal is related to the clock signal. 5. The method of writing servo tracks to the least available storage medium. The clock tracks are on it. It is used to control the phase of the servo tracks written to the method storage media. Rotating the storage medium at the rotational frequency derived from the reference frequency. Acquisition of a servo pattern signal with a pattern frequency from that reference frequency, reading the clock track from the said storage medium. In order to obtain a clock signal that has Clock frequency The phase adjustment of the digital servo pattern signal is related to the clock signal so that That the servo pattern signal will have the corresponding phase with the clock signal, with the phase of the pattern pattern The servo is adjusted using a phase-locked loop, including a dual modulus proscale, which is used to adjust the phase. Of the servo pattern signal relative to the clock, and writing the servo track in accordance with the servo pattern signal to the storage media. 6. The method of writing servo tracks to the least available storage media. The clock tracks are on it. It is used to control the phase of the servo tracks written to the storage medium. Methods include: Rotating the storage media at the rotational frequency derived from the reference frequency. The attainment of a servo pattern signal with a pattern frequency from the reference frequency. It passes a reference signal with a reference frequency to two amplifiers, whose output Amplifiers are separated or shifted in phase with each other. And the summation of the said output, reading the clock track from the said storage medium to obtain a stable clock signal. Clock frequency The phase adjustment of the servo pattern signal is related to the clock signal by Adjusting at least one gain in the amplifier so that the servo pattern signal There will be a phase corresponding to the clock signal and the servo track is written in accordance with the servo pattern signal to the storage medium. 7. The method of writing servo tracks to the storage media with at least the tracks. The clock signal is on it, which is used to control the phase of the servo track written to the storage medium, the methods include: generating a servo pattern signal with a pattern frequency from a reference frequency, Read the clock track from the storage medium to obtain a available clock. Clock frequency; Digital modulation of the phase of the servo pattern signal is related to the clock signal. By adjusting the phase of the reference frequency where the servo pattern signal is obtained, so that The servo pattern signal is phase matching with the clock signal, and the servo track is written in accordance with the servo pattern signal to the storage media. 8. Method according to Clause 7, which includes frequency and pattern switching. Between one of several discontinuous values, in order to adjust the phase of the servo pattern signal Relative to the clock signal 9. Method according to claim 7, where the digital phase-lock loop is used to adjust the phase of The servo pattern signal is related to the clock signal 1. 0. How to write a servo track to a storage medium with at least a signal track. The clock is on it It is used to control the phase of the servo tracks written to the method storage media. Generator of a servo pattern signal with a pattern frequency. Reading the clock track from the said storage medium to obtain a available clock Clock frequency Digital modulation of the phase of the servo pattern signal is related to the clock signal. So that the servo pattern signal is in sync with the clock signal. By the phase of the signal The servo pattern is adjusted using a digital phase-lock loop that includes a dual modulus proscale, which is activated. To adjust the phase of the servo pattern signal in relation to the clock signal and write the servo track according to the servo pattern signal to the storage media 1. 1. A way to write a servo track to a storage medium with at least signal tracks. The clock is on it It is used to control the phase of the servo tracks written to the method storage media. Generating a servo pattern signal with a pattern frequency by passing the signal. Reference with reference frequency to two amplifiers. Where the output of the circuit is split or shifted to have Phase relative to each other And the addition of such phase-separated outputs Reading the clock track from the said storage medium to obtain a available clock Clock frequency Digital modulation of the phase of the servo pattern signal is related to the clock signal. So that the servo pattern signal has the corresponding phase with the signal By adjusting the gain of At least one such amplification circuit and servo track writing in accordance with the servo pattern signal to storage media 1. 2. The method of writing servo tracks to the storage media with at least the tracks. The clock signal is on it, which is used to control the phase of the servo track written to the storage medium, a method which includes: generating a servo pattern signal with a pattern frequency from a reference signal. A reference signal is passed to two amplifiers whose outputs are isolated or shifted, phase-related. As such, the combined output is used to generate the signal. Servo patterns, reading the clock track from the said storage medium to obtain a stable clock signal. Clock frequency; The servo waveform phase adjustment is related to the clock signal so that the signal The servo pattern is in sync with the clock signal by adjusting its gain to a minimum. One of the amplifiers, and writing the servo tracks in accordance with the servo pattern signal to the storage media 1. 3. Method according to claim 12, where the amplification ratio of the amplifier can be digitally controllable. 4. Method according to claim 12, where the phase with which the output of the amplifier is isolated or is Move relative to each other is 90 ํ 1. 5. Device for writing servo tracks to at least the available storage media. The clock tracks are on it. It is used to control the phase of the servo tracks written to the storage media, including devices; The origin of the reference signal with the reference frequency; Drive circuit provided to induce rotation of the storage medium at the rotational frequency derived from the reference frequency; A servo pattern generator provided to receive the reference frequency and to output the signal. A servo pattern with a pattern frequency derived from the reference frequency for use in track writing. A servo pattern on the storage medium, and a phase adjuster for adjusting the phase of the servo pattern signal to be in sync with the Clock signal is obtained from the clock track on the such storage medium by adjusting the phase of the The reference frequency at which the servo pattern signal is received, then 1 6. The device according to claim 15, where the phase modulator is a digital phase 1 modulator. 7. Equipment according to claim 16, where the digital phase adjuster Will be provided to adjust the phase of The servo pattern signal is related to the clock signal by switching the pattern frequency between the One of a number of discrete values 1 8. Device according to claim 16, where the phase modulator is digital phase 1 locked loop. 9. A device for writing servo tracks to a minimum of available storage media. The clock tracks are on it. It is used to control the phase of the servo tracks written to the storage media, including devices. The origin of the reference signal with the reference frequency. A circuit organized to cause the rotation of the storage medium at a rotating frequency derived from the reference frequency, signal source, servo pattern provided, to receive the reference frequency and to output. A servo pattern signal with a pattern frequency derived from the reference frequency for use in writing. A servo track on the storage medium and a digital phase-lock loop for adjusting the phase of the servo pattern signal to have the corresponding phase. Against the clock signals obtained from the clock tracks on the said storage media. Where the aforementioned digital phase-lock loop includes a 2-pair modulus prescale. 0. Device according to claim 19, where such pair modulus prescale are formed as Also part of the servo pattern signal generator 2. 1. A device for writing servo tracks to a minimum of available storage media. The clock tracks are on it. It is used to control the phase of the servo tracks written to the storage media, including devices. The origin of the reference signal with the reference frequency. A circuit provided to cause the rotation of the storage medium at the rotational frequency obtained from the reference frequency, the supplied servo pattern generator, to receive the reference frequency and to output the signal. A servo pattern with a pattern frequency derived from the reference frequency for use in track writing. A servo pattern on the storage medium and a phase adjuster for adjusting the phase of the servo pattern signal to match the phase with the Clock signals obtained from clock tracks on such storage media. Where the said phase adjuster Combined with two amplifiers, a phase separator or a phase slider. For separating or sliding The outputs of the amplifiers in phase are relative to each other. Such as the isolated phase output and gain control circuits. For adjusting the gain of at least one Amplifier circuit to adjust the phase of the aforementioned servo pattern signal 2. 2. A device for writing servo tracks to a minimum of available storage media. The clock tracks are on it. It is used to control the phase of the servo tracks written to the storage media, including devices. Reference signal source with reference frequency. A drive circuit provided to cause the rotation of the storage medium at a rotational frequency derived from the reference frequency, the supplied servo pattern generator, to receive the reference frequency and to output the signal. A servo pattern with a pattern frequency derived from the reference frequency for use in track writing. A servo pattern on the storage medium and a phase adjuster for adjusting the phase of the servo pattern signal to be in sync with the Clock signals obtained from clock tracks on such storage media. By the said phase adjuster Combined with 2 pair modulus proscelar 3. A device for writing servo tracks to a minimum of available storage media. The clock track is on it, which is used to control the phase of the servo track written to the storage media, the device, which includes: a servo pattern generator for generating a pattern signal. A servo with a pattern frequency from the reference frequency; Clock track reader for reading clock tracks from storage media. To obtain a clock signal with a clock frequency, and a digital phase modulator for digital adjustment of the phase of a servo waveform signal. It is related to the clock signal so that the servo pattern signal has a phase. Corresponding to that clock signal by adjusting the phase of the reference frequency at which the pattern signal The servo is then given 2 4. Device according to claim 23, where the phase modulator is provided to switch the frequency pattern. Between one of the discontinuous values in order to adjust the phase of the signal. The servo is related to the aforementioned clock signal 2. 5. Device according to claim 23, which consists of a digital phase-locked loop for The phase adjustment of the servo pattern signal is related to the clock signal 2. 6. Device for writing servo tracks to at least the available storage media. The clock tracks are on it. It is used to control the phase of the servo tracks written to the storage media, including devices. Servo pattern generator for generating a pattern waveform signal. Servo with pattern frequency Clock track reader for reading clock tracks from storage media. To obtain a clock signal with a digital clock frequency and phase-locked loop for digital adjustment of the phase of a servo pattern signal. It is related to the said clock signal. To make the servo pattern signal phase Corresponding to the said clock signal Where the aforementioned digital phase-lock loop includes a 2-pair modulus prescale. 7. A device for writing servo tracks to a minimum of available storage media. The clock tracks are on it. It is used to control the phase of the servo tracks written to the storage media, including devices. Servo pattern generator for generating a pattern waveform signal. Servo with pattern frequency Clock track reader for reading clock tracks from storage media. To obtain a clock signal with a digital clock frequency and a digital phase adjuster for digital adjustment of the phase of a servo waveform signal. It is related to the clock signal so that the servo pattern signal has a phase. Corresponding to the said clock signal The waveform generator consists of two amplifiers, phase separators, or phase sliders. For separating or sliding The output of the amplifier has phase. Relationship with each other Integrated circuit for the summation of such phase separated output. And a gain control circuit for adjusting gain at least one amplifier In order to adjust the phase of The aforementioned servo pattern signal 2 8. A device for writing servo tracks to a minimum of available storage media. The clock signal is on it, which is used to control the phase of the servo tracks written to the storage media, devices including: servo pattern generator. It consists of two amplifiers, a separator or a phase slider for separating or shifting the amplifier's outputs relative to each other, and an integrated circuit for such phase-separating output summation; A clock track reader for reading clock tracks from such storage media to obtain a clock signal with a clock frequency, and gain control for at least gain adjustment. Amplifiers in order to Adjust the phase of the servo pattern signal in relation to that clock signal so that The servo pattern signal is phase corresponding to that clock contract 2. 9. Equipment according to claim 28, where the amplification of the amplifier can be digitally controllable 3. 0. Device according to claim 28, where phase with the output of the phase slider or separator. The phases are separated or shifted relative to each other, 90 °