JPH05334672A - Optical information recording and reproducing device - Google Patents

Abstract

PURPOSE:To obtain a small and inexpensive optical information recording and reproducing device capable of recording information by positioning a recording beam at a prescribed position precisely and in a short time and efficiently performing the reproduction of the information. CONSTITUTION:After the count value of a counter 36 is initialized, it is set as H20(47)=L and H21(48)=H, and a head motor 2(18) is rotated in a forward direction, and a DCLK signal 45 is counted by the counter 36. When the counter 36 counts N pulses. a comparator 37 sets a coincidence signal(SEL) 46 at H, and a selector 40 selects the output of comparators 38, 39. At this time. the output of the comparators 38, 39 are inputted to the input terminals IN1, IN2 of a driver 41, and a short-braking state is set via the driving of the head motor 2(18) in the forward/backward direction, and a reproducing head 2 can be stopped at the leading edge of a targeted DCLK signal 45.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to an optical information recording for positioning a recording beam when optically recording information by irradiating a card-shaped optical information recording carrier with a light beam through an objective lens. Reproduction device

[0002]

2. Description of the Related Art An optical card has the same size and shape as a credit card, is convenient to carry, and cannot be rewritten like an optical disk, but its recording capacity (1 to 2.5 Mbytes) and one card per card. It is characterized by low cost, and is expected as a next-generation information recording medium, and is expected to have a wide range of applications.

A conventional example will be described below with reference to the drawings.

FIG. 10 and FIG. 11 relate to a conventional example, and FIG.
0 is a block diagram showing the configuration of the optical card, and FIG. 11 is a block diagram showing the configuration of the tracks of the optical card.

Conventionally, an optical card as shown in FIG. 10 has been proposed. In such an optical card 1, information is recorded as bits and optically reproduced. These pieces of information are recorded / reproduced in units called tracks 53,
A plurality of linear strip-shaped tracks 53 that are parallel to each other are arranged to form one card.

In the example of FIG. 10, I is provided at both ends of the track 53.
What is called D areas 52a, 52b, 52c are arranged, and each track number pattern and a specific recognition pattern common to each track for recognizing the track number are recorded (prerecorded) in advance. Due to
It makes it easy to find the target track. The data areas 51a and 51b store recorded information and prerecorded information.

FIG. 11 shows the details of the track 53 in the area A surrounded by the dotted line in FIG. In the track 53, a guide pattern 55 consisting of a black-and-white pattern extending in the track direction is pre-recorded in a guide line area 54 at the center thereof, and in the data area 51a, on both sides of the guide line area 54 in the track width direction (seek direction). A total of 8 bits and 16 bits of data are recorded. 56-1 to 56 in the ID area 52a
-8 is a pattern indicating a track number, and 57-1 to 57-1
57-8 is a specific recognition pattern common to each track. Here, the track number pattern 56 and the recognition pattern 57 of the ID area 52a are detected at the time of seek, and the 16-bit data in the data area 51a are simultaneously read at the time of reproduction to speed up the reading.

The present inventors have also proposed a method for positioning a recording beam in a direction perpendicular to a track on an optical card in which a plurality of tracks composed of a guide pattern extending in the track direction and a plurality of recording lines are gathered. Wishhei 3
No. 154651 proposes the following. Here, after the head is positioned on the target track with the reproduction light that illuminates the entire track width, a minute recording beam is projected onto the optical card and the recording beam is displaced in the direction perpendicular to the track while rotating the mirror. The recording beam is positioned on the target recording line when it is determined that the amount of light received by the photodetector corresponding to the target recording line is maximum.

Further, in Japanese Patent Laid-Open No. 2-165433,
In an optical disc device, two plane mirrors arranged at a certain angle are rotated with respect to the incident light while keeping the angle constant, whereby the emitted light is translated and the positioning in the tracking direction is performed.

[0010]

However, in the above-mentioned conventional information recording / reproducing system, the recording beam is displaced in the direction perpendicular to the track while rotating the mirror, so as to correspond to the target recording line. Since the amount of received light is detected by the photodetector, there is a problem that it is difficult to mechanically align the mirror and the photodetector.

Further, since the target position is set to a position where the amount of light received by the photodetector is maximum, the light receiving cell area of the photodetector is slightly larger than the recording beam, so that the maximum peak of the amount of received light tends to be flat. However, there is also a drawback that the maximum peak is not sharp enough and the positioning accuracy is low.

Further, in the method of rotating the two plane mirrors with respect to the incident light while keeping the angle constant, since the light source is used for both recording and reproduction (one-beam method), the multi-track read method which is particularly effective for the optical card is adopted. It is not suitable for small size, light weight and low price of the device.

The present invention has been made in view of the above-mentioned problems, and it is possible to record information by accurately positioning a recording beam at a predetermined position in a short time and efficiently reproduce the information. It is an object of the present invention to provide a small-sized, low-priced optical information recording / reproducing device.

[0014]

The optical information recording / reproducing apparatus of the present invention comprises an optical information recording carrier having a plurality of lines of tracks and a guide pattern extending in the track direction within the tracks. An illumination unit that illuminates the entire width of the track, an illumination light moving unit that relatively moves the illumination light from the illumination unit in the track direction, and a guide pattern of the illumination light that is moved by the illumination light moving unit. Signal generating means for generating a focus error signal, a tracking error signal and a clock signal based on reflected light; a control means for performing focus control and tracking control based on the focus error signal and the tracking error signal; and the clock An information recording unit that irradiates a recording beam in synchronization with a signal to record information and a clock signal based on the clock signal. And a positioning means for positioning the recording beam emitted from the recording means in a direction perpendicular to the track, and a track information reproducing means for simultaneously reproducing information of the entire width of the track by the illumination light from the illumination means. I have it.

[0015]

[Operation] While the illumination light from the illumination means is moved relatively to the optical information recording carrier in the track direction by the illumination light moving means, the signal generation means changes the guide pattern of the illumination light from the guide pattern of the illumination light. The focus error signal, the tracking error signal, and the clock signal are generated based on the reflected light, and the information is obtained while the control unit performs the focus control and the tracking control based on the focus error signal and the tracking error signal. When recording information is recorded by irradiating a recording beam in synchronization with the clock signal by the recording means, the positioning means positions the recording beam in the direction perpendicular to the track based on the clock signal to record information. , Information on the entire width of the track by the illumination light from the illumination means To play at the same time.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 9 relate to one embodiment, and
3 is a block diagram showing a configuration of a head motor 2 control circuit, FIG. 2 is a block diagram showing a schematic configuration of the entire optical card device, FIG.
Is a configuration diagram showing the configuration of the light receiving surface of the photodetector, FIG. 4 is an illuminance distribution diagram showing the illuminance on the light receiving surface of the photodetector, FIG. 5 is a truth table showing the state of the head motor 2, and FIG. FIG. 7 is a timing chart showing the timing of each signal, FIG. 7 is a conceptual diagram for explaining the positioning of the recording beam, FIG. 8 is an explanatory diagram for explaining the initial positioning of the recording beam, and FIG. It is a block diagram.

In this embodiment, as shown in FIG. 2, information is recorded / reproduced on / from the optical card 1. The semiconductor laser (LD) 12 is driven only during recording and light is emitted. The diode (LED) 3 is driven during both recording and reproduction. The optical card 1 is in the track direction (card longitudinal direction) via the card motor 16, and the reproducing head 2 is in the direction (seek direction) orthogonal to the track via the head motor 1 (17) in the card motor control circuit 22 and the head motor. 1 is driven by the control circuit 23 to record or reproduce information.

Furthermore, the reproducing head 2 is also driven in the track direction by the head motor 2 control circuit 24 via the head motor 2 (18) when the recording beam is positioned, and is fixed to the frame of the apparatus. The optical axis of the recording head 11 and the optical axis of the reproducing head 2 in the track direction are perpendicular to each other, and each optical axis is adjusted to be on the same plane. That is, only the reproducing head 2 is moved in the seek direction by the head motor 1 (17), and is moved in the track direction by the head motor 2 (18).

The light from the LED 3 controlled by the drive circuit 25 is made into a substantially parallel light by the collimator lens 4, and after passing through the dichroic mirror 10 and the half prism 5,
The light is reflected by the reflection prism 9, is projected onto the optical card 1 through the objective lens 6, and spot-illuminates a wide track width,
Similarly, the reflected light from the optical card 1 is reflected by the objective lens 6, the reflecting prism 9, and the half prism 5, and the imaging lens 7
The light is then received by the photodetector 8.

Further, the light from the LD 12 controlled by the modulation circuit 26 and the drive circuit 27 is the collimator lens 1
The light is converted into a substantially parallel light by 3, reflected by the dichroic mirror 10, transmitted through the half prism 5, reflected by the reflection prism 9, and passes through the objective lens 6 to the optical card 1 within the illumination area of the LED 3 and a minute recording beam. To record information by physically changing the recording surface of the optical card 1 as
Similarly, the reflected light passes through the objective lens 6, the reflecting prism 9, the half prism 5, and the imaging lens 7, and is received by the photodetector 8.

The dichroic mirror 10 is provided with a desired coating on its surface so that, for example, the light (wavelength 860 nm) from the LED 3 is effectively transmitted and the light (wavelength 780 nm) from the LD 12 is effectively reflected. There is.

The detection signal exchanged into an electric signal by the photodetector 8 is input to the demodulation circuit 19, and this demodulation circuit 19 is supplied.
Outputs a read signal which is a reproduction signal and a clock signal which serves as a timing reference during recording / reproduction.

Further, a part of the detection signal is also applied to the focus control circuit 20 and the tracking control circuit 21 to generate a focus error signal and a tracking error signal, and the reproducing head 2 is passed through a drive circuit (not shown). In addition to the focus coil 14 and the tracking coil 15 inside, the objective lens 6 is driven in the perspective direction and the seek direction of the optical card 1 based on the error signal to perform auto focus control and auto tracking control. ..

FIG. 3 shows the light receiving surface 8a of the photodetector 8 which forms the track format image shown in FIG. 11 described in the prior art on the photodetector 8 and outputs a detection signal. Then, the 16 data reading light receiving areas 8-A1 to 8-A16 arranged corresponding to the 16-bit data recording position in the track width direction and the guide pattern 55 are separated from each other in the track direction so as to receive the image. The five pairs of light-receiving regions for clock generation 8-B1 to 8-B10 arranged in parallel with each other and the two edges of the guide pattern 55 in the track width direction are spaced and opposed in the track width direction so as to receive images. 4 pairs of servo signal detection light receiving areas 8-C1 to 8-C4
And 8-D1 to 8-D4. Reference numeral 58 represents an image of the light emitting portion of the LED 3 which is reflected by the optical card 1 and is formed on the photodetector 8.

Here, when the recording surface of the optical card 1 is at the focus position of the objective lens 6, the illuminance distribution of the LED 3 imaged on the photodetector 8 is shown by the solid line in FIG. 4, and the optical card 1 is the objective lens. The illuminance distribution on the photodetector 8 is as shown by the broken line in FIG. 4 when the position is closer than the in-focus position of 6 and is shown by the alternate long and short dash line as it is farther away.

That is, (1) the amount of light incident on the light receiving region for data reading is Ai (i = 1 to 16), and (2) the amount of light incident on the light receiving region for clock generation is Bj (j = 1 to 1).
0), (3) the light amount incident on the outer servo signal detecting light receiving region is Cm (m = 1 to 4), and (4) the light amount incident on the inner servo signal detecting light receiving region is Dn (n = 1 to 1). 4), when the optical card 1 approaches the objective lens 6 side, ΣC
When m (m = 1 to 4) increases and ΣDn (n = 1 to 4) decreases, and conversely, when the optical card 1 moves away from the objective lens 6 side, ΣCm decreases and ΣDn increases. ..

In this way, the focus error (FE)
The signal is FE = ΣDn−G · ΣCm (G: constant) The tracking error (TE) signal is TE = (D1 + D3) − (D2 + D4) The clock signal is ΣB2j−ΣB2j−1 (j = 1 to 5), While reproducing in synchronization with this clock signal, the output of Ai (i = 1 to 16) is demodulated at the time of reproduction to simultaneously read 16-bit data, and at the time of recording, the recording of the optical card 1 is performed by the recording beam from the LD 12. Write information on the surface.

In the head motor 2 control circuit 24, which controls the positioning of the reproducing head 2 in the track direction,
In FIG. 1, the sum ΣB2j of even-numbered light quantities and the sum ΣB2j of odd-numbered light quantities which are incident on the light receiving region for clock generation of the photodetector 8
-1 is subjected to voltage conversion by the IV conversion circuits 30a and 30b and supplied to the differential amplifier 31, and the output thereof is supplied to the analog switch 33b via the analog switch 33a and the inverter 32.

The outputs of the analog switches 33a and 33b are supplied to the comparator 35 as the analog clock signal (ACLK) 44, and compared with the reference voltage VR which is the operating point of the circuit, and the digital clock signal (DCL).
K) is output to the counter 36. The controller 28
Analog switch 3 with control signal (Odd / -Even)
Outputs 3a and 33b are selected.

The counter 36 receives the DCLK signal indicating the position information of the optical card 1 and a reset signal (RE) for initializing the count value from the controller 28.
SET) has been entered. The output of the counter 36 is input to one (P terminal) of the comparator 37 and the other (Q terminal)
Is a set value N for comparing the count value from the controller 28.
(Target position) is input, and the match signal SE that is the comparison result
L (46) is output to the select terminal (SEL) of the selector 40 and is also input to the control terminals of the analog switches 42a and 42b via the inverter 43, so that the output voltage control terminal Vref of the drive circuit 41 has a predetermined voltage Va. Alternatively, either Vb (Va> Vb) is supplied to control the rotation speed of the head motor 2 (18).

The ACLK signal 44 is the + of the comparator 38.
It is input to the negative terminal of the terminal and 39 and compared with the reference voltage VR, and the output is 1A terminal and 2A of the selector 40, respectively.
Input to the terminal. The drive signals H20 (47) and H21 (48) for PWM-controlling the reproducing head 2 by the controller 28 are input to the 1B terminal and the 2B terminal of the selector 40. The input signals 1A, 2A or 1B, 2B selected by the select terminal (SEL) of the selector 40 are output to the output terminals 1Y, 2Y and rotate the head motor 2 (18) via the drive circuit 41. FIG. 5 shows the control logic of the drive circuit 41 and the operating state of the head motor 2 (18).

In the above structure, the positioning control operation of the reproducing head 2 in the track direction will be described first with reference to the timing chart of FIG. Here, the target position is on the forward side of the current position (point O), and the number of pulse edges of the DCLK signal 45 is required to be 6 edges (even number). The numbers in (2) and (4) of FIG. 6 indicate the number of clock edges from the point O or the edge number. Is indicated (point O is not included).

Note that the number of pulse edges is 6 edges: ↓ edge (3 pcs) + ↑ edge (3 pcs) = 6 edges (Ev
en) On the other hand, for example, when the number of pulse edges is five, it means that ↓ edge (2) + ↑ edge (3) = 5 edge (Od
d) and corresponds to the numbers in FIGS. 6 (2) and 6 (4).

Further, the forward / reverse direction is convenient and may be defined in any way. Here, for example, in FIG. 7 (C) described later, the + l1, + l2 side is the forward direction, -l1,
The −l2 side is the opposite direction.

First, in order to align the current position (point O) with the edge of the DCLK signal, the optical card 1 is finely moved in the track direction while being tracked on an arbitrary track to be aligned. That is, by illuminating the LED 3 (LD
12 is off), and any track is tracked.
The card motor 18 is driven to drive the clock signal (DCL
K) When the edge of 45 is detected, the card motor 18 is stopped (as long as the next edge can be detected, the stopping accuracy does not need to be so severe). Next, LD12
Projects onto the card with a non-writable, low output. The tracking at this time is performed by the error signal TE2 = D3-D4
Based on. Then, as the reproducing head 2 is moved in the track direction, the recording beam is moved in the seek direction, and the servo signal detection light receiving areas 8-D1 and 8-D2 are detected.
When the amounts of light incident on the head motor 18 become equal,
To stop. Then, tracking is performed based on the normal error signal TE = (D1 + D3)-(D2 + D4).

Thereafter, this position (which is an absolute position from the data area to the K pulse ID area) becomes the origin.

Next, the controller 28 sets the pulse number N (N = 3) corresponding to the target position in the comparator 37, and the control signal (Odd / -Even) = (Od
d = "Hi" Active (forward direction), Even = "L"
AC of FIG. 6 (1) as o "active (reverse direction)
Select the LK signal 44 and the DCLK signal of (2) in the figure,
The reproducing head 2 is driven in the forward direction (CW). Comparator 3
The match signal (SEL) 46 of 7 is the set number N and the counter 36.
Since the count values of the two do not match, the initial state is Lo-level, and the selector 40 causes the drive signal H20 (4
7) and H21 (48) are selected.

After initializing the count value of the counter 36, the controller 28 sets H20 (47) = Lo-level, H2.
1 (48) = Hi-level, and head motor 2 (1
8) Rotate in the forward direction (CW). Head motor 2
When (18) is rotated in the forward direction, the DCLK signal is input to the counter 36 and the number of clocks is counted.

When the counter 36 counts N pulses (when the reproducing head 2 is moved to the target position), the comparator 37 sets the coincidence signal (SEL) 46 to Hi-level (FIG. 6).
(5)), the selector 40 selects the output of the comparators 38 and 39. At this time, the outputs of the comparators 38 and 39 are input to the input terminals IN1 and IN2 of the driver 41, and the head motor 2 (18) is driven in the reverse direction (C
CW), forward direction (CW) drive, and a short brake state (FIGS. 6 (6) and (7)), and the reproducing head 2 is stopped at the target rising edge of the DCLK signal 45.

In this way, the positioning control of the reproducing head 2 in the track direction is performed, and the recording beam is positioned based on this.

In FIGS. 7A and 7C, the outgoing light S0 emitted from the LD 12 in the recording head 11 is reflected by the dichroic mirror 10 and, after passing through the half prism 5,
The ID area 52 of the optical card 1 is reflected by the reflection prism 9.
It is projected as a recording beam at the position P0 inside.

Here, when the reproducing head 2 is moved in the track direction (left and right in the figure), the light emitted from the LD 12 becomes S1 or S2, and is projected as a recording beam at the position P1 or P2 on the optical card 1. Therefore, by positioning the reproducing head 2 in the track direction, the recording beam projected on the optical card 1 can be positioned in the seek direction.

Therefore, since the pitch of the guide pattern 55 in the track direction is equal to the pitch between recording lines in the seek direction (distance of l1 to l2 in FIG. 7C), the clock signal generated by the guide pattern 55 for the reproducing head 2 is generated. By locating the light beam from the LD 12, the light emitted from the LD 12 can be positioned on the target recording line and the recording beam can be projected onto the optical card 1.

That is, by positioning the reproducing head 2 in the track direction by using the guide pattern extending in the track direction as position information, the recording beam can be positioned in any recording line in the direction perpendicular to the track (seek direction). Becomes

Although the initial positioning of the recording beam may be mechanically adjusted, as shown in FIG. 8, the recording beam is projected after the optical card 1 is slightly moved and stopped at the edge of the clock signal. Inner light receiving area for servo signal detection 8-D
The reproducing head 2 so that the light amounts of 1 and 8-D2 are equal to each other.
Position in the track direction. The recording beam after the initial positioning is positioned on the recording line L0 in FIG. 7C.

That is, the LED 3 is illuminated (LD12
Is off), and track to any track. When the card motor 18 is driven and the edge of the DCLK signal is detected, the card motor 18 is stopped (it is sufficient if the next edge can be detected, so the stop accuracy does not have to be so severe). Next, the LD 12 is projected on the card with a low output that cannot be written. The tracking at this time is
This is performed based on the error signal TE2 = D3-D4. Then, as the reproducing head 2 is moved in the track direction, the recording beam moves in the seek direction, and when the light amounts incident on the servo signal detection light receiving regions 8-D1 and 8-D2 become equal, the head motor 18 To stop. Then, the normal error signal TE = (D1 + D
3)-(D2 + D4). This completes the initial positioning operation of the recording beam. In addition, this operation is
This is performed only when the card is inserted, and thereafter only counting the DCLK signal is performed.

In the above example, the reproducing head 2 is drive-controlled in the track direction to position the recording beam in the seek direction, and then the optical card 1 is driven in the track direction to record / reproduce information. Information may be recorded / reproduced by controlling the reproducing head 2 in the track direction after driving the optical card 1 in the track direction to position the recording beam in the seek direction.

In this embodiment, the recording beam is moved in the seek direction by moving the recording head 11 which is movable relative to the reproducing head 2. Since it is only necessary for the light beam to move in the seek direction by the movement of the recording head 11, the recording head 1 in FIG.
The positions of the LED 1 and the LED 3 and the collimator 4 may be exchanged, and the reflection mirror 9 may be omitted.

Next, the operation of the modification of the optical card will be described with reference to FIG. The optical card 1a of the modified example has the size composition ratio of the guide pattern 55 in the seek direction to the track direction set to 1: 1 to 2: 1 with respect to the optical card 1 (FIG. 9A).

By using the optical card 1a of such a modified example, the frequency of the ACLK signal 44 is doubled (FIG. 9 (B)), the positional accuracy (resolution) in the track direction is improved, and the clock signal Since the positioning can be performed at the same edge, the circuit configuration becomes simple.

[0052]

As described above, according to the present invention, the recording beam is perpendicular to the track by positioning the reproducing head or the optical card in the track direction using the guide pattern extending in the track direction as position information. Since it can be positioned on any recording line in any direction, information can be recorded by positioning the recording beam at a predetermined position accurately and in a short time, and at the same time, information from multiple recording lines can be reproduced at the same time during reproduction. As a result, information can be efficiently reproduced.

Further, since the reproducing head and the recording head are unitized, the recording head can be detached in the reproduction-only device, and the size and cost of the device can be reduced.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of a head motor 2 control circuit according to an embodiment.

FIG. 2 is a block diagram showing a schematic configuration of an entire optical card device according to an embodiment.

FIG. 3 is a configuration diagram showing a configuration of a light receiving surface of a photodetector according to an example.

FIG. 4 is an illuminance distribution diagram showing illuminance on a light receiving surface of a photodetector according to an example.

FIG. 5 is a truth table showing a state of the head motor 2 according to the embodiment.

FIG. 6 is a timing chart showing the timing of each signal according to one embodiment.

FIG. 7 is a conceptual diagram illustrating positioning of a recording beam according to an embodiment.

FIG. 8 is an explanatory diagram illustrating initial positioning of a recording beam according to an embodiment.

FIG. 9 is a configuration diagram showing a configuration of a track of an optical card of a modified example according to an embodiment.

FIG. 10 is a configuration diagram showing a configuration of an optical card according to a conventional example.

FIG. 11 is a configuration diagram showing a configuration of a track of an optical card according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Optical card 2 ... Reproduction head 8 ... Photodetector 11 ... Recording head 17 ... Head motor 1 18 ... Head motor 2 19 ... Demodulation circuit 23 ... Head motor 1 control circuit 24 ... Head motor 2 control circuit 28 ... Controller 36 ... Counter 37 ... Comparator 40 ... Selector 41 ... Driver

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[Procedure amendment]

[Submission date] November 6, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

Conventionally, an optical card as shown in FIG. 10 has been proposed. In such an optical card 1, the information is
Recorded as pits and optically reproduced. These pieces of information are recorded / reproduced in units called tracks 53,
A plurality of linear strip-shaped tracks 53 that are parallel to each other are arranged to form one card.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

In the example of FIG. 10, I is provided at both ends of the track 53.
What is called D areas 52a, 52b, 52c are arranged, and each track number pattern and a specific recognition pattern common to each track for recognizing the track number are recorded (prerecorded) in advance. Due to
It makes it easy to find the target track. Further, the data areas 51a and 51b store additionally recorded information and previously recorded information.

[Procedure amendment 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

The outputs of the analog switches 33a and 33b are supplied to the comparator 35 as the analog clock signal (ACLK) 44, and compared with the reference voltage VR which is the operating point of the circuit, and the digital clock signal (DCL).
K) 45 is output to the counter 36. Controller 28
Selects the output of the analog switches 33a and 33b by the control signal (Odd / -Even).

[Procedure correction 4]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

The counter 36 receives the DCLK signal 45 indicating the position information of the optical card 1 and the reset signal (RESET) for initializing the count value from the controller 28. The output of the counter 36 is input to one (P terminal) of the comparator 37, and the other (Q
A set value N (target position) for comparing the count values is input to the terminal) from the controller 28, and a match signal SEL (46) as the comparison result is input to the select terminal (SE of the selector 40.
L) and is also input to the control terminals of the analog switches 42a and 42b via the inverter 43, and the output voltage control terminal Vref of the drive circuit 41 is supplied with either a predetermined voltage Va or Vb (Va> Vb). It is supplied to control the rotation speed of the head motor 2 (18).

[Procedure amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0036

[Correction method] Change

[Correction content]

First, the current position (point O) and the DCLK signal 4
In order to align with the edge of No. 5, the optical card 1 is finely moved in the track direction and aligned while tracking on an arbitrary track. That is, the LED 3 is illuminated (the LD 12 is off), and an arbitrary track is tracked. The card motor 18 is driven and the clock signal (D
CLK) 45 edge is detected, card motor 1
8 is stopped (as long as the next edge can be detected,
Stopping accuracy does not have to be so severe). Next, LD
12 is projected on the card with a low output that is not writable.
The tracking at this time is performed by the error signal TE2 = D3-
Based on D4. Then, as the reproducing head 2 is moved in the track direction, the recording beam moves in the seek direction, and the servo signal detection light receiving areas 8-D1 and 8-
When the amounts of light incident on D2 become equal, the head motor 18 is stopped. (FIG. 8) Then, the normal error signal TE = (D1 + D3)-(D2 + D4) is used for tracking .
Based on.

[Procedure Amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction content]

Next, the controller 28 sets the pulse number N (N = 3) corresponding to the target position in the comparator 37, and the control signal (Odd / -Even) = Lo-.
Level ("Hi" Active (forward), -Even)
= “Lo” active (reverse direction)) in FIG.
ACLK signal 44 and DCLK signal 45 shown in FIG.
Is selected, and the reproducing head 2 is driven in the forward direction (CW). The coincidence signal (SEL) 46 of the comparator 37 is at the Lo-level in the initial state because the set number N and the count value of the counter 36 do not coincide, and the selector 40 drives the drive signals H20 (47) and H21 (48). ) Is selected.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction content]

After initializing the count value of the counter 36, the controller 28 sets H20 (47) = Lo-level, H2.
1 (48) = Hi-level, and head motor 2 (1
8) Rotate in the forward direction (CW). Head motor 2
When (18) is rotated in the forward direction, the DCLK signal 45 is input to the counter 36 and the number of clocks is counted.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction content]

That is, the LED 3 is illuminated (LD12
Is off), and track to any track. When the card motor 18 is driven and the edge of the DCLK signal 45 is detected, the card motor 18 is stopped (the next edge need only be detected, so the stop accuracy does not have to be so severe). Next, the LD 12 is projected on the card with a low output that cannot be written. The tracking at this time is performed based on the error signal TE2 = D3-D4. Then, as the reproducing head 2 is moved in the track direction, the recording beam moves in the seek direction, and when the light amounts incident on the servo signal detection light receiving regions 8-D1 and 8-D2 become equal, the head motor 18 To stop. Then, the normal error signal TE = (D1 + D
3)-(D2 + D4). This completes the initial positioning operation of the recording beam. In addition, this operation is
It is performed only when the card is inserted, and thereafter, it is performed only by counting the DCLK signal 45 .

[Procedure Amendment 9]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure Amendment 10]

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[Figure 9]

Claims (2)

[Claims] 1. An illuminating device for illuminating the entire width of the track on an optical information recording medium having a track of a plurality of lines and having a guide pattern extending in the track in the track, and the illuminating device. Illumination light moving means for relatively moving the illumination light in the track direction, and a focus error signal, a tracking error signal, and a clock based on the reflected light from the guide pattern of the illumination light moved by the illumination light moving means. A signal generation unit that generates a signal, a control unit that performs focus control and tracking control based on the focus error signal and the tracking error signal, and irradiates a recording beam in synchronization with the clock signal to record information. Information recording means, and the recording beam emitted from the recording means based on the clock signal An optical information recording / reproducing device comprising: positioning means for positioning the track in a direction perpendicular to the track; and track information reproducing means for simultaneously reproducing information of the entire width of the track by illumination light from the illuminating means. apparatus. 2. An optical information record carrier having a track of a plurality of lines and having a guide pattern extending in the track direction in the track, wherein a size composition ratio of the guide pattern is 1: 2N (N is an integer). An optical information recording carrier characterized in that.