JP2003059109A - Optical information recording medium, optical information recording medium recording method, optical information recording medium reproducing method, optical information recording medium recording device, and optical information recording medium reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical information recording medium of a zone CLV system able to deal with the density increase which can stably fetch both of the wobble signals and address signals necessary during recording and reproducing of information out of grooves. SOLUTION: The grooves are formed of the same sinusoidal segments as fundamental component segments and segments which are a shape of a triangular waveform with the half period in one period of the wobbles as one unit and address information is obtained by detecting the groove-shaped segments of the triangular waveform shape. In addition, the wobbles of the adjacent grooves are made in-phase.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical information recording medium, an optical information recording medium recording method, an optical information recording medium reproducing method, and an optical information particularly for storing and reproducing a digital information signal in a phase change medium or a magneto-optical medium. The present invention relates to a recording medium recording device and an optical information recording medium reproducing device.

[0002]

2. Description of the Related Art Recording / reproduction is possible in a groove groove having waviness (hereinafter referred to as wobble) formed on a disc, and auxiliary information (hereinafter referred to as land prepit) is previously stored in a land portion existing between the groove grooves. A recorded optical disc is a rewritable digital versatile disc (hereinafter referred to as DVD-RW (DVD For).
UM suggestion).

An optical disk similar to the DVD-RW is disclosed in Japanese Patent Application Laid-Open No. 9-326138 (the title of the invention "optical recording medium and its recording / reproducing method, recording / reproducing apparatus"). That is, as shown in FIG.
Japanese Patent No. 26138 discloses an optical disk which has wobbled grooves for the purpose of high-density recording and has pits recorded at predetermined intervals in an area between the grooves, and an optical disk of an optical disk by a wobble signal detected from the grooves of the optical disk. A recording / reproducing method and a recording / reproducing apparatus are disclosed in which rotation control is performed and a position of a recording signal on an optical disk is detected by a pit signal detected from a pit.

According to the above method, for example, a so-called compact disc recordable system (CD-R) is used.
It is possible to record address information with higher accuracy than a disc that has wobbled grooves and sector information including address information is recorded by modulation of a wobble signal, such as a CD-R disc used for. is there.

That is, in a method of recording address information by modulating a wobble signal like a CD-R recording / reproducing apparatus, if the track pitch, which is the distance between adjacent grooves, is narrowed, the wobble signal leaks from the adjacent groove. The wobble signal S / N decreases, the address information cannot be demodulated correctly, and it becomes difficult to detect the carrier of the wobble signal necessary for controlling the rotation of the disk. In that case, the rotation of the disk Control is also hindered.

In order to record a signal with high density, it is necessary to narrow the track pitch. Therefore, it becomes a problem to accurately reproduce address information even with a narrow track pitch, and a method such as that of a CD-R recording / reproducing apparatus is required. Is not suitable for high density recording.

Further, in the above-mentioned method, the position accuracy of the recording / reproducing spot obtained by the reproduced address information on the disk depends on the frequency of the carrier wave and is on the order of the wavelength of the carrier wave. On the other hand, it is necessary to select a relatively low frequency for the carrier wave frequency, that is, the wobbling frequency, so as not to adversely affect the recording signal. In the CD-R example, the frequency is 22 kHz, and the wavelength on the disc is 54 μm.

[0008] When data is recorded not continuously but at intervals, and data is recorded later in an unrecorded portion, it is necessary to record the data at an accurate position on the disc. When accurate recording is not possible, it is necessary to provide a so-called gap for absorbing an error in the recording position for each unit of recording data to avoid duplication of the recorded data. Since the gap reduces the recordable capacity on the disc, its length needs to be made as small as possible, but the accuracy described above is not sufficient.

According to the method of using the wobble signal of the groove and the pit signal of the land in combination, such as the DVD-RW and the optical disk described in the above publication, deterioration of the wobble signal due to the above-mentioned high density and securing of position accuracy can be ensured. Can solve problems.

On the other hand, in a method using a so-called header area in which an address is arranged at the head of a sector, such as a DVD-RAM, address information and recording information are recorded in a time division manner, and the recorded signal is not recorded. Although it becomes continuous, it is possible to record data continuously in the method disclosed in the above publication, which uses a groove wobble signal and a land pit signal together, and the signal is recorded continuously. It is highly useful in applications where importance is placed on compatibility with read-only discs.

[0011]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the D-RW and the conventional optical disk described in the above-mentioned publication and the recording and reproducing apparatuses therefor, pits are recorded at predetermined intervals in the area between the grooves, so that the following problems occur.

(1) If the land prepits exist in the same phase on adjacent tracks, the land prepits cannot be detected by the difference signal on the left and right of the track. It is necessary to change the processing.

(2) Since recording / reproduction is performed at a constant linear velocity (CLV), there is a portion where adjacent wobbles have opposite phases. As a result, crosstalk from adjacent tracks becomes large, and there arises a problem that the quality of the recording / reproducing signal and the land pre-pit signal deteriorates.

(3) When performing data seek for a large distance in the radial direction of the optical disc, it takes a long time for the number of revolutions of the spindle motor for optical disc rotation to settle within the range in which data can be recorded or reproduced. Takes.

(4) In a portion where land prepits exist in adjacent land portions, R recorded in the groove portion is recorded.
The F signal deteriorates under the influence of the land prepits.

In order to solve these problems, Japanese Patent Application No. 2
No. 000-60018, in a recordable / reproducible optical disc having a tracking groove formed by periodically waviness in a header area and a data recording area,
The information recording part composed of the groove grooves is divided into a plurality of zones in the radial direction of the disc, and one side or both sides of the groove grooves are continuous in each zone of the plurality of zones with a constant frequency by a constant angular velocity method. Pre-pit group consisting of a predetermined number of consecutive land pre-pits that are wobbled and are formed so that the wobbles of adjacent groove grooves in the disc radial direction in each zone always have the same phase. According to the present invention, the bit data value including at least the zone address is indicated, and the pre-pit group is located at a position where the phase is different in the disc circumferential direction between two land portions adjacent to each other in the disc radial direction. An optical disc has been proposed which is characterized in that it is recorded in advance. An example of the arrangement of wobbled grooves and land prepits on this optical disk is shown in FIG.

According to the present invention, the land prepits can be reproduced by minimizing the crosstalk of the prepits from the adjacent land portions, and the wobble phase becomes the same over the entire circumference of the disc, so that the above-mentioned problems occur. (1) and (2) can be solved.

Further, the ZCLV system (zone CLV system. Linear velocity within the zone is controlled by controlling the rotation so that the wobble frequency fw detected from the reproduced signal always becomes the reference clock frequency preset in the reference clock generation circuit or the like. (Constant method) rotation control is possible, and by controlling so that the rotation speed is always constant in all zones, ZC
Since the AV system (zone CAV system; system in which the angular velocity is constant in the zone) can be controlled, the above problem (3) can be solved.

However, the deterioration of the RF recording signal caused by the presence of the land prepits is essentially unavoidable, and the above problem (4) cannot be solved.

Therefore, the present invention has been made by paying attention to the above points, and is constructed based on the wobble of a single frequency without using the land prepits or the header area.
An object of the present invention is to provide an optical information recording medium having highly accurate address information.

[0021]

In order to solve the above problems, the present invention provides an optical information recording medium, an optical information recording medium recording method, an optical information recording medium reproducing method, an optical information recording medium recording device having the following constitution. An optical information recording medium reproducing device is provided. (1) An optical information recording medium having a series of wobbled groove grooves, wherein the wobble is a sine wave on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble. A sine wave wobble portion having a shape and a triangular wave wobble portion in which the other side or one side from the amplitude center has a triangular wave shape, and the groove grooves are provided at a predetermined number in the wobble amplitude direction. While being divided into zones, wobbling is performed at a constant frequency in each of the divided zones by a constant angular velocity method, and in each zone, the phase of each wobble of the groove groove adjacent in the amplitude direction of the wobble is An optical information recording medium, which is formed so as to have the same phase. (2) An optical information recording medium having a series of wobbled groove grooves, wherein the wobble is a sine wave on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble. A sine wave wobble portion having a shape and a triangular wave wobble portion in which the other side or one side from the amplitude center has a triangular wave shape, and the groove grooves are provided at a predetermined number in the wobble amplitude direction. While being divided into zones, wobbling is performed at a constant frequency in each of the divided zones by a constant angular velocity method, and in each zone, the phase of each wobble of the groove groove adjacent in the amplitude direction of the wobble is The zones are formed so as to have the same phase, and each time the plurality of zones advances one zone from one side to the other side of the medium, each zone Wobble frequency wobbles the groove groove with a constant frequency within a predetermined natural number, and the amount of recording information recorded in the groove groove within each zone also increases for each predetermined recording unit An optical information recording medium characterized by: (3) The optical information recording medium according to claim 1 or 2, wherein the wobble cycle is a cycle of a predetermined single frequency. (4) The maximum and minimum amplitudes of the wobble and the amplitude center are constant even when the triangular wobble portion is on one side or the other side of the amplitude center. The optical information recording medium according to claim 3. (5) The inclination of each wobble portion immediately before and after the zero cross point of the groove groove corresponding to the joint between the sine wave wobble portion and the triangular wave wobble portion is equal. One of
The optical information recording medium described in 1. (6) The optical information recording medium according to any one of claims 1 to 5, wherein address information in the groove groove is recorded in the triangular wave wobble portion. (7) The address information is recorded depending on whether the triangular wobble portion is on one side or the other side from the amplitude center. 1. The optical information recording medium described in 1. (8) The optical information recording medium according to any one of claims 1 to 5, wherein the address information is recorded depending on the presence or absence of the triangular wobble portion. (9) There are three cases in which the wobble portion of the triangular wave is located on one side of the amplitude center of the wobble, on the other side of the amplitude center, or on neither one side nor the other side. The optical information recording medium according to any one of claims 1 to 5, wherein the ternary address information of the groove groove is recorded on the wobble. Here, the triangular wobble portion is not on the amplitude center but on the maximum amplitude side. (10) The wobbles are grouped in a continuous predetermined number, and have a sinusoidal wobble portion on one side or the other side from the amplitude center and a triangular wobble portion on the other side or one side from the amplitude center. 7. The optical information recording medium according to any one of claims 1 to 6, further comprising a wobble group formed by grouping a predetermined number of the above. (11) In the wobble group, the address information is recorded depending on whether the triangular wobble portion is on one side or the other side of the amplitude center. Optical information recording medium. (12) The optical information recording medium according to claim 10, wherein the address information is recorded depending on the presence or absence of the triangular wobble portion in the wobble group. (13) In the wobble group, there are three types of wobble groups, that is, the triangular wobble portion is on one side from the amplitude center, is on the other side from the amplitude center, and is not on either one side or the other side. 11. The optical information recording medium according to claim 10, wherein the wobble is used as the ternary address information of the groove groove in some cases. Here, the triangular wobble portion is not on the amplitude center but on the maximum amplitude side. (14) The wobbles are grouped by a predetermined number consecutively, and in the wobble group that represents the synchronization bits of the address information, both sides of the amplitude center have a triangular wave shape at the same frequency as the wobbles. Claim 1 thru | or Claim 6 characterized by these, Claim 10 thru | or Claim 1
2. The optical information recording medium as described in 1 above. Here, in the synchronization portion (synchronization bit), both sides of the amplitude have a triangular wave shape. (15) The wobble is formed so that the wobble frequency fw and the channel bit clock frequency fp of the information signal to be recorded or reproduced satisfy the relation fp = N × fw (where N is a natural number). The optical information recording medium according to any one of claims 1 to 14, characterized in that: (16) The optical information recording medium according to any one of claims 1 to 15, wherein the wobble unit length of the wobbled groove groove is constant over the entire medium. (17) Equipped with a series of wobbled groove grooves,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in a predetermined number with respect to the wobble amplitude direction, and wobbles with a constant frequency are formed in each of the zones by a constant angular velocity method. An optical information recording medium recording method for recording information in the groove groove of an optical information recording medium in which address information in each zone is recorded in the triangular wobble portion. The position on the optical information recording medium is detected based on the address information detected from the wobble portion, and this detection is performed. And a control step of controlling rotation of the optical information recording medium by using a wobble frequency which is a constant frequency in the detected zone. Optical information recording medium recording method. (18) Equipped with a series of wobbled groove grooves,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in the amplitude direction of the wobble, and is wobbled at a constant frequency in each of the divided zones by a constant angular velocity method. Further, the address information indicating the position in each zone on the optical information recording medium is such that the wobble in which the sine wave wobble portion and the triangular wave wobble portion are continuous by a predetermined number is set as one wobble group. Record according to the arrangement of the triangular wobble portion in the wobble in the group In the optical information recording medium recording method for recording information in the groove groove, the address signal reproduced from the triangular wobble portion is counted by scanning the groove groove, and the count number is 1 If the number is less than the predetermined number of the wobble group and is equal to or more than a predetermined number (for example, assuming that the continuous predetermined number is 9 (9 wobbles are 1 wobble group), 6 or more triangles are included in one wobble group. The writable wobble group is recorded in the wobble group, which is 1 if the wavy wobble is detected, 0 if less than 6 wobbles, and if it is more than a specified number even if all 9 wobbles cannot be detected. The wobble in which the address signal related to the address information is determined and the address information related to the determined address signal is recorded. The optical information is detected using a detection step of identifying a group and detecting the zone including the identified wobble group, and zone information related to the detected zone and a wobble signal obtained by scanning the groove groove. And a control step for controlling rotation of the recording medium, the optical information recording medium recording method. (19) The wobble signal having the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Alternatively, the optical information recording medium recording method according to claim 18. (20) The address information or the address signal is
2. A push-pull signal obtained by a push-pull method by irradiating one optical beam spot onto the optical information recording medium, and obtaining the push-pull signal by second-order differentiation.
The optical information recording medium recording method according to claim 7 or 18. (21) Equipped with a series of wobbled groove grooves,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in a predetermined number with respect to the wobble amplitude direction, and wobbles with a constant frequency are formed in each of the zones by a constant angular velocity method. An optical information recording medium reproducing method for reproducing information recorded in the groove groove of the optical information recording medium in which address information in each zone is recorded in the triangular wobble portion. , The position on the optical information recording medium based on the address information detected from the triangular wobble portion. And a detection step of detecting the zone including the detected position, and a control step of controlling rotation of the optical information recording medium using a wobble frequency which is a constant frequency in the detected zone. An optical information recording medium reproducing method characterized by the above. (22) Equipped with a series of wobbled groove grooves,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in the amplitude direction of the wobble, and is wobbled at a constant frequency in each of the divided zones by a constant angular velocity method. Further, the address information indicating the position in each zone on the optical information recording medium is such that the wobble in which the sine wave wobble portion and the triangular wave wobble portion are continuous by a predetermined number is set as one wobble group. Record according to the arrangement of the triangular wobble portion in the wobble in the group In the optical information recording medium reproducing method for reproducing the information recorded in the groove groove, the address signal reproduced from the triangular wobble portion is counted by scanning the groove groove. If the count number is less than the predetermined number related to the wobble group of 1 and is equal to or more than a predetermined number
(For example, assuming that the number of consecutive predetermined numbers is 9 (1 wobble group with 9 wobbles), 1 is detected when 6 or more triangular wave wobbles are detected in 1 wobble group, and 0 if less than 6 wobble groups. Is used
(If it is not possible to detect all nine, but there are more than the specified number)
The wobble group in which the address signal related to the address information recorded in the wobble group is determined, the wobble group in which the address information related to the determined address signal is recorded is identified, and the identified wobble group is included. And a control step of controlling rotation of the optical information recording medium using zone information relating to the detected zone and a wobble signal obtained by scanning the groove groove. An optical information recording medium reproducing method characterized by the above. (23) The wobble signal of the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Alternatively, the optical information recording medium reproducing method according to claim 22. (24) The address information or the address signal is
3. A push-pull signal obtained by the push-pull method by irradiating one optical beam spot on the optical information recording medium and obtaining the push-pull signal by second-order differentiation.
23. The optical information recording medium reproducing method according to claim 1 or 22. (25) Equipped with a series of wobbled groove grooves,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in a predetermined number with respect to the wobble amplitude direction, and wobbles with a constant frequency are formed in each of the zones by a constant angular velocity method. An optical information recording medium recording device for recording information in the groove groove of an optical information recording medium in which address information in each zone is recorded in the wavy portion of the triangular wave. The position on the optical information recording medium is detected based on the address information detected from the wobble portion, and this detection is performed. And a control means for controlling the rotation of the optical information recording medium by using a wobble frequency which is a constant frequency in the detected zone. Optical information recording medium recording device. (26) A series of wobbled groove grooves are provided,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in the amplitude direction of the wobble, and is wobbled at a constant frequency in each of the divided zones by a constant angular velocity method. Further, the address information indicating the position in each zone on the optical information recording medium is such that the wobble in which the sine wave wobble portion and the triangular wave wobble portion are continuous by a predetermined number is set as one wobble group. Record according to the arrangement of the triangular wobble portion in the wobble in the group In the optical information recording medium recording device for recording information in the groove groove, the address signal reproduced from the triangular wobble portion is counted by scanning the groove groove, and the count number is 1 If the number is less than the predetermined number for the wobble group and is a predetermined number or more, it is determined that the address signal is for the address information recorded in the wobble group, and the address for the determined address signal is Detecting means for identifying the wobble group in which information is recorded and detecting the zone including the identified wobble group; wobble obtained by scanning the zone information and the groove groove relating to the detected zone. And a control means for controlling the rotation of the optical information recording medium using a signal. Broadcast recording medium recording device. (27) The wobble signal of the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Alternatively, the optical information recording medium recording device according to claim 26. (28) The address information or the address signal is
3. A push-pull signal obtained by the push-pull method by irradiating one optical beam spot on the optical information recording medium and obtaining the push-pull signal by second-order differentiation.
The optical information recording medium recording device according to claim 5 or 26. (29) Equipped with a series of wobbled groove grooves,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in a predetermined number with respect to the wobble amplitude direction, and wobbles with a constant frequency are formed in each of the zones by a constant angular velocity method. And an optical information recording medium reproducing apparatus for reproducing information recorded in the groove groove of the optical information recording medium in which address information in each zone is recorded in the triangular wobble portion. , The position on the optical information recording medium based on the address information detected from the triangular wobble portion. And a control means for controlling the rotation of the optical information recording medium by using a wobble frequency which is a constant frequency in the detected zone, and a detection means for detecting the zone including the detected position. An optical information recording medium reproducing apparatus characterized by the above. (30) Equipped with a series of wobbled groove grooves,
Further, the wobble is a sinusoidal wobble portion in which one side or the other side from the amplitude center is a sine wave shape based on the amplitude center of the maximum and minimum amplitude of the wobble and a triangle in which the other side or one side from the amplitude center is a triangular wave shape. The groove groove is divided into a plurality of zones in the amplitude direction of the wobble, and is wobbled at a constant frequency in each of the divided zones by a constant angular velocity method. Further, the address information indicating the position in each zone on the optical information recording medium is such that the wobble in which the sine wave wobble portion and the triangular wave wobble portion are continuous by a predetermined number is set as one wobble group. Record according to the arrangement of the triangular wobble portion in the wobble in the group In the optical information recording medium reproducing apparatus for reproducing the information recorded in the groove groove, the address signal reproduced from the triangular wobble portion is counted by scanning the groove groove. If the count number is less than the predetermined number related to the wobble group and is equal to or more than a predetermined number, it is determined that the address signal is related to the address information recorded in the wobble group, and the determined address signal The wobble group having the address information recorded therein, and detecting means for detecting the zone including the identified wobble group, and scanning the zone information and the groove groove related to the detected zone. Control means for controlling the rotation of the optical information recording medium by using the wobble signal obtained by The optical information recording medium reproducing apparatus characterized. (31) The wobble signal having the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Alternatively, the optical information recording medium reproducing apparatus according to claim 30. (32) The address information or the address signal is
3. A push-pull signal obtained by the push-pull method by irradiating one optical beam spot on the optical information recording medium and obtaining the push-pull signal by second-order differentiation.
The optical information recording medium reproducing apparatus according to claim 9 or 30.

Further, the present invention has the following configurations (a) to (x). (a) A wobbled groove groove is provided, and an outer peripheral side or an inner peripheral side has a sinusoidal shape from an approximate center of the wobble amplitude, and an inner peripheral side or an outer peripheral side has a triangular wave shape. Optical information recording medium. (b) The optical information recording medium according to claim 1, wherein the wobble period has a single frequency. (c) Whether the triangular wobble shape is on the outer peripheral side or the inner peripheral side from the approximate center of the wobble amplitude,
The optical information recording medium according to claim 1, wherein the amplitude of the wobble and the center of the amplitude are substantially constant. (d) The optical information recording according to claim 1, wherein the inclination at the zero cross point of the wobbled groove groove corresponding to the joint between the sine wave shape and the triangular wave shape is not changed. Medium. (e) The optical information recording medium according to claim 1, wherein address information is recorded in the wobble shape of the triangular wave. (f) Depending on whether the wobble shape of the triangular wave is on the inner circumference side or the outer circumference side from the approximate center of the amplitude of the wobble,
The optical information recording medium according to claim 5, wherein address information is recorded. (g) The optical information recording medium according to claim 5, wherein address information is recorded depending on the presence or absence of the triangular wobble shape. (h) When the triangular wave-shaped groove-shaped portion is on the outer peripheral side from the substantially center of the wobble amplitude, or on the inner peripheral side,
The optical information recording medium according to claim 5, wherein the optical information recording medium has three cases of non-existence and is used as ternary address information. (i) The wobbles are grouped by a predetermined number of consecutive wobbles, and the outer side or the inner side has a sinusoidal shape from the approximate center of the wobble amplitude, and the inner side or the outer side has a triangular wave shape. The optical information recording medium according to claim 1, comprising a certain wobble group. (j) In the wobble group, address information is recorded depending on whether the triangular wobble shape is on the inner circumference side or the outer circumference side from the approximate center of the wobble amplitude. 9. The optical information recording medium described in 9. (k) The optical information recording medium according to claim 9, wherein in the wobble group, address information is recorded depending on the presence or absence of the triangular wobble shape. (l) In the wobble group, the triangular wave-shaped groove-shaped portion has three kinds of cases, that is, a case of being located on the outer peripheral side from an approximate center of the amplitude of the wobble, a case of being on the inner peripheral side, and a case of not having the three values. 10. The optical information recording medium according to claim 9, which is used as address information of the optical information recording medium. (m) The wobbles are grouped into a predetermined number that are consecutive, and the wobble group that represents a synchronization bit of address information is triangular-wave modulated at the same frequency as the wobbles. The optical information recording medium described. (n) The wobble is formed such that its frequency fw and the channel bit clock frequency fp of the information signal to be recorded or reproduced satisfy the relation fp = N × fw (where N is a natural number). The optical information recording medium according to claim 1, characterized in that: (o) The wobbled groove groove is divided into a plurality of zones in the radial direction of the optical information recording medium and is continuously wobbled at a constant frequency in each zone of the plurality of zones by a constant angular velocity method. 2. The wobbles of the groove grooves adjacent to each other in the radial direction of the optical information recording medium are formed in each zone so that the wobbles always have the same phase. Optical information recording medium. (p) The number of wobbles per revolution of the optical information recording medium increases by a predetermined natural number each time the information recording area advances one zone in the outer peripheral direction of the optical information recording medium. 16. The optical information recording medium (q) according to claim 15, wherein the recorded information of the wobbled groove is increased in every predetermined recording unit, and the wobbling amplitude is substantially from the center to the outer circumference side or the inner circumference side. Reproducing the optical information recording medium characterized by having a sinusoidal shape and having a portion having a triangular wave shape on the inner peripheral side or the outer peripheral side, and address information being recorded by the triangular wobble shape. In doing so, the position of the recording signal on the optical information recording medium is detected by the address signal detected from the triangular wobble shape, and the zone information extracted from the address signal is detected. And characterized by controlling the rotation of the optical information recording medium by wobble signal detected from the groove, recording and / or reproducing method for an optical information recording medium. (r) A wobbled groove groove is provided, and the wobbles are grouped by a predetermined number of consecutive wobbles, and the outer peripheral side or the inner peripheral side has a sinusoidal shape from the approximate center of the amplitude of the wobble, and the inner peripheral side In reproducing the optical information recording medium, the outer peripheral side has the wobble group having a triangular wave shape, and the address information is recorded by the triangular wave wobble shape. The address information detected from the wobble shape of the triangular wave is counted, and the address information recorded in the wobble group is discriminated by whether the count number is equal to or more than a predetermined number arbitrarily determined with respect to the continuous predetermined number. Then, the position of the recording signal on the optical information recording medium is detected, and zone information extracted from the address information is detected. And controlling the rotation of the optical information recording medium by wobble signal detected from Lube, recording and / or reproducing method for an optical information recording medium. (s) The wobble signal and the address signal are simultaneously read by one beam spot by the push-pull method, and the recording and / or reproducing method of the optical information recording medium according to claim 17 or 18. (t) The address signal is obtained by second-order differentiating a push-pull signal detected by the push-pull method, and recording and / or recording on the optical information recording medium according to claim 17 or 18, How to play. (u) a wobbled groove groove, a sine wave shape is formed on the outer peripheral side or the inner peripheral side from the approximate center of the wobble amplitude, and a triangular wave shape is formed on the inner peripheral side or the outer peripheral side. When reproducing the optical information recording medium characterized in that the address information is recorded in a wavy wavy shape, a recording signal on the optical information recording medium is recorded by an address signal detected from the wavy shape in the triangular wave. A recording and / or reproducing apparatus for an optical information recording medium, which detects a position and controls rotation of the optical information recording medium by zone information extracted from the address signal and a wobble signal detected from a groove. (v) A wobbled groove groove is provided, and the wobbles are grouped by a predetermined number of continuous wobbles. The wobbling amplitude has a sinusoidal shape on the outer circumference side or the inner circumference side from the approximate center, and the inner circumference side or In reproducing the optical information recording medium, the outer peripheral side has the wobble group having a triangular wave shape, and the address information is recorded by the triangular wave wobble shape. The address information detected from the wobble shape of the triangular wave is counted, and the address information recorded in the wobble group is discriminated by whether the count number is equal to or more than a predetermined number arbitrarily determined with respect to the continuous predetermined number. Then, the position of the recording signal on the optical information recording medium is detected, and zone information extracted from the address information is detected. And controlling the rotation of the optical information recording medium by wobble signal detected from Lube, the optical information recording medium recording and / or reproducing apparatus. (w) The recording and / or reproducing apparatus for the optical information recording medium according to claim 21 or 22, wherein the wobble signal and the address signal are simultaneously read out by one beam spot by the push-pull method. (x) The address signal is obtained by second-order differentiating a push-pull signal detected by the push-pull method, and recording and / or recording on the optical information recording medium according to claim 21 or 22, Playback device.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to its preferred embodiments. FIG. 1 shows an embodiment of the optical information recording medium of the present invention. Hereinafter, for convenience of explanation, as an example of the optical information recording medium of the present invention, only a phase change type or magneto-optical type optical disc capable of repeatedly recording and reproducing a digital information signal will be described, but the present invention is limited to this optical disc. However, it includes an optical recording medium such as a phase change type or magneto-optical type card-like optical card capable of repeatedly recording and reproducing a digital information signal.

FIG. 1 shows a part of the groove groove. The upper side of the drawing is the outer peripheral side of the disk, and the lower side is the inner peripheral side of the disk. The thick line in the figure shows the shape of the groove groove itself, and the alternate long and short dash line near the center of the thick line shows the fundamental wave portion of the wobble. The wobble fundamental wave component has a constant single frequency and is not modulated.

As shown in FIG. 1, a half cycle in one cycle of the wobble has the same sinusoidal shape as the fundamental wave component,
The remaining half cycle has a triangular wave shape that is continuously connected to the sinusoidal groove groove. As described below,
In the present invention, the address information is obtained by detecting the above-mentioned triangular wave groove-shaped portion.

As described above, the shape of the groove is different between the inner peripheral side and the outer peripheral side, and the sine wave portion and the triangular wave portion are switched on the inner peripheral side and the outer peripheral side by the address information bit, but the sine wave portion Also in both the triangular wave portion and the triangular wave portion, the actual amplitude of the groove viewed from the amplitude center of the wobble fundamental wave component is set to be substantially the same. In this way, the light beam will not be offset regardless of whether there is a triangular wave portion on the inner peripheral side or the outer peripheral side.

Further, the inclination at the zero cross point of the wobbled groove groove corresponding to the joining portion of the sine wave shape and the triangular wave shape is different between when the triangular wave shape is on the inner peripheral side and when it is on the outer peripheral side. In some cases, if you keep it unchanged,
Jitter in the time axis direction of the wobble signal can be greatly reduced,
The address information can be obtained well.

For that purpose, it is preferable that the inclination be the same as the inclination at the zero cross point of the fundamental wave component of the wobble. As a result, the slope at the zero cross point is the same regardless of the presence or absence of the triangular wave groove portion, and a stable wobble signal can be obtained.

In the case of FIG. 1, with one cycle of the wobble divided by the zero cross of the wobble amplitude as one unit, when there is a triangular wave groove shape from the approximate center of the wobble amplitude to the outer peripheral side of the disk, the address bit "1". If there is a triangular wave groove-shaped portion on the inner peripheral side of the disk, it is determined that the address bit is "0".

Next, FIG. 2 shows another embodiment of the optical information recording medium of the present invention. In the case of FIG. 2, the half cycle of the wobble separated by the zero cross of the wobble amplitude is one unit,
Address bit "1" if there is a triangular wave groove shape
If there is no triangular wave-shaped groove-shaped portion, it is determined that the address bit is “0”. If you do this,
It is possible to have double the address information as compared with the above embodiment.

FIG. 3 shows another embodiment of the optical information recording medium of the present invention. In the case of FIG. 3, when the half cycle of the wobble divided by the zero cross of the wobble amplitude is one unit, when there is a triangular wave groove shape from the approximate center of the wobble amplitude to the disk outer peripheral side, it is determined as the address bit "1". , If there is a triangular wave groove shape from the approximate center of the wobble amplitude to the inner circumference side of the disk, it is determined as an address bit “−1”. If there is no triangular wave groove shape portion, the address bit is “0”.
To determine. By doing so, it is possible to have ternary address information, and it is possible to record high-density address information.

FIG. 4 shows another embodiment of the optical information recording medium of the present invention. In FIG. 4, wobbles are grouped in a predetermined number, and in the same wobble group, a triangular wave-shaped groove-shaped portion is provided in the same direction from the approximate center of wobble amplitude to the inner or outer circumference side of the disc. , "1" and "0" of the address bit are discriminated depending on whether the triangular wave-shaped groove portion is on the inner peripheral side or the outer peripheral side for each wobble group. This way, one from multiple wobbles
Since one address bit is detected, it is possible to prevent erroneous detection of the address bit due to a defect of the disk.

FIG. 5 shows another embodiment of the optical information recording medium of the present invention. In FIG. 5, as in FIG. 4, wobbles are grouped into a predetermined number of continuous wobbles, and a wobble group having a triangular wave-shaped groove portion on the disk outer peripheral side from the approximate center of the wobble amplitude, and a triangular wave-shaped groove-shaped portion. A wobble group having no edge is created, and the presence or absence of a triangular wave groove-shaped portion is detected for each wobble group to determine "1" and "0" of the address bit. This method also takes 1 from multiple wobbles
Since one address bit is detected, it is possible to prevent erroneous detection of the address bit due to a defect of the disk.

Further, in the detection circuit described later, the detection threshold need be provided for only one polarity, so that the structure of the detection circuit can be simplified. Contrary to FIG. 5, the triangular-wave-shaped groove-shaped portion may be unified so as to be provided on the inner peripheral side of the wobble.

FIG. 6 shows another embodiment of the optical information recording medium of the present invention. In FIG. 6, wobbles are grouped into a predetermined number of consecutive wobbles, and in the same wobble group, a triangular wave-shaped groove-shaped portion is provided in the same direction from the approximate center of the wobble amplitude to the disc inner peripheral side or outer peripheral side. Or, do not have a triangular wave-shaped groove.

Presence / absence of a triangular wave-shaped groove-shaped portion and its polarity are detected for each wobble group, and when there is a triangular wave-shaped groove shape from the approximate center of the wobble amplitude to the disk outer peripheral side, it is determined to be an address bit "1". , If there is a triangular wave groove shape on the inner circumference side of the disk from the approximate center of the wobble amplitude, it is judged as the address bit “−1”, and if there is no triangular wave groove shape part, it is judged as the address bit “0”. To do. By doing so, it is possible to have ternary address information, and it is possible to record high-density address information.

Here, in the optical disc of the present invention, the channel bit clock frequency fp and the wobble frequency fw of the information signal to be recorded are set to the following equation fp = N × fw (1) over the entire disc surface. . However, in the formula (1), N is a natural number.

Now, assume that the number of words per sync block of the optical disk is 93 words, and as shown in FIG. 7, each sync block is composed of 26 sync blocks and one ECC block is composed of 32 sectors. If one word has 15 bits, the number of channel bits in one sector is 93 × 26 × 15 = 36270 (2).

Considering the case where the address is constructed in sector units, the wobble must be completed for each sector, so N in the equation (1) is the channel bit number 36270.
Must be a divisor of. Further, in the case of completing each synchronization block, it is necessary to be a divisor of 93 × 15 = 1395. The wobble frequency needs to be a relatively low frequency so as not to affect the frequency of the recording signal.

Considering the above conditions, N is determined as follows. N = 155 (= 1395/9) (3)

As described above, according to the present embodiment, the channel bit clock frequency fp and the wobble frequency fw are configured to have a proportional relationship of the natural number N. In the recording / reproducing apparatus described later, the wobble reproduction frequency is set to N
By multiplying, it is possible to easily generate the channel clock for recording.

Next, the address signal recorded on the optical disk of the present invention will be described. FIG. 8 is an example of a format configuration diagram of an address signal recorded on the optical disc according to the present invention.

As shown in FIG. 8, the address signal has a structure in which an address synchronizing signal, a sector address, an ECC block address, an additional information signal, and an error correction code are combined in time series, and is modulated by a predetermined modulation method. And is recorded in advance by the manufacturer. The address synchronization signal is a signal for identifying the recording position of the address signal by the recording device or the reproducing device. The additional information is information necessary to drive the laser power, the manufacturing number, and various auxiliary information.
The error correction code is a code for error correction of the address signal.

Applying the relationship between channel bits and wobbles defined by equations (2) and (3), the number of wobbles per sync block is 9, and 234 wobbles per sector. Therefore, in the embodiment of FIG. 1, there are 117 address bits per sector, in the embodiment of FIG. 2, there are 234 address bits per sector, and in the embodiment of FIG. 3, there are 234 address bits per sector (three values). The address format of FIG. 8 is assigned to these address bits. A unique pattern that does not appear in a predetermined modulation method that performs address modulation may be assigned to the address synchronization signal.

For example, in the embodiment shown in FIG. 1, the address data of 12 bytes per sector can be recorded with 117 address bits as 21 sync bits + 12 bytes (1 byte = 8 address bits). One byte is enough for the sector address, and normally, if the ECC block address is 3 bytes, the address of the entire surface of the disk can be expressed. In that case, the number of bytes required for the error correction code is 3 bytes, so the remaining 5
Bytes can be assigned to other additional information.

Since the amount of information can be further increased in the embodiments of FIGS. 2 and 3, more information can be assigned to the additional information.

In the embodiments of FIGS. 4, 5 and 6, wobbles are grouped by a predetermined number of consecutive wobbles, and an address bit is assigned to each wobble group. Applying the relationship between channel bits and wobbles defined by equations (2) and (3) to these examples, the number of wobbles per wobble group is set to 9 wobbles per synchronous block = 9, and 26 per sector. Address bits can be assigned. Using this, address information is assigned as shown in FIG. In FIG. 9, the address information is handled in ECC block units instead of sector units.

For example, if 5 address bits are assigned to the address synchronization signal and 5 address bits are assigned to the sector address per sector, the remaining 16 address bits =
2 bytes can be used. In this case, the entire ECC block can have 64 bytes of data. As described above, since the ECC block address and the error correction code usually have to be 6 bytes, even if they are recorded in the first half and the second half of the ECC block, the remaining 52 bytes can be used for the additional information. I can. Or E
The CC block address may be recorded more than once.

When the wobbles are grouped into a predetermined number and the address bits are assigned to each wobble group as in the embodiment of FIGS. The shape of the groove may be made unique without using the unique pattern. This state is shown in FIG.

In FIG. 10, the address synchronization pattern in the drawing is triangular-wave modulated at the same frequency as the wobble frequency fw. That is, both the inner circumference side and the outer circumference side of the disk from the approximate center of the wobble amplitude are triangular wave-shaped groove portions. In the other wobble groups, either the inner circumference side or the outer circumference side of the disk has a triangular wave groove shape, or neither of them has a groove shape, so that the address synchronization pattern can be easily discriminated.

When this address synchronization pattern is used,
Since at least 1 address bit (1 wobble group) is required for address synchronization, the address bits that can be used as data can be further expanded.

When the wobbled groove groove addressing system is applied to an optical disk by the constant linear velocity system (CLV system) similar to the conventional DVD-RW, there are places where adjacent wobbles have opposite phases. Therefore, when the track pitch is narrowed in order to increase the density of the optical disc, crosstalk from adjacent tracks becomes large at the above-mentioned location, which causes a problem that the quality of the recording / reproducing signal or the land prepit signal is deteriorated. .

For example, FIG. 11 conceptually shows a portion where adjacent wobble phases have opposite phases in a conventional optical disc. In the same figure, 4 adjacent to each other in the radial direction of the disk
Grooves of books Groove1, Groove2, Gro
Groove Groove among ove3 and Groove4
The phase of the wobble formed in the groove Groove4 adjacent to e3 is inverted as shown by the dotted circle in the figure.

In such a case, in a portion where the distance to the adjacent groove becomes short, crosstalk from a signal recorded in the adjacent groove becomes large, a data error occurs due to signal deterioration, or the data is already recorded at the time of recording. For example, erroneous erasure of adjacent tracks may occur. Further, in such a part, the output of the wobble signal may not be sufficiently obtained, which may affect the reading. For this reason,
As described above, it is necessary to take measures such as not recording the digital information signal and not recording the address information at the portions where the wobble phases are opposite to each other between the adjacent grooves. This phenomenon can also occur when the present invention is applied to an optical disc by the CLV method.

Therefore, in the present invention, the wobbled groove groove is divided into a plurality of zones in the disk radial direction, and wobbles are continuously wobbled at a constant frequency in each zone of the plurality of zones by the constant angular velocity method. Further, in each zone, the wobbles of the groove grooves adjacent to each other in the radial direction of the disc are always formed to have the same phase.

FIG. 12 is a schematic diagram of zone arrangement in an embodiment of the optical disc according to the present invention. As shown in FIG. 12, the optical disk of the present embodiment has a recording area in a concentric circle shape of the disk, from zone 0 to zone Z-1.
The zones are divided into individual zones, and the wobbles in each zone are formed to have the same phase. As an example, a radius of 12
For a cm optical disc, each zone consists of 1120 tracks. The number Z of zones is 95, for example.

In this embodiment, as shown in FIG. 14, since adjacent wobbles have the same phase in the zone, crosstalk from adjacent tracks caused by the wobble phase being opposite phase and the groove interval being small is generated. Does not occur. Further, it is possible to detect a good wobble signal.

As the information recording / reproducing signal, a run length limited code RLL (2, 3 channel bits per shortest mark is used.
If the shortest recording mark length in the innermost recording area with a radius r of 24 mm is about 0.186 μm, the channel bit per track is 2πr.
Since it is represented by / {(shortest recording wavelength) / 3), the number of sectors per track is represented by the following equation.

Number of sectors per track in innermost circumference = (channel bit per track) / (channel bit of one sector) = [2πr / {(shortest recording wavelength) / 3}] / (channel of one sector Bit) = [2π · 24 · 10 ⁻³ · 3 /(0.186·10 ⁻⁶ )] / 36270 = 67 (4)

At this time, since the number of wobbles per sector is 234 from equations (1) to (3), the number of wobbles per track in the innermost circumference is 15678.

Further, as the radius increases in the zone, the length of one round of the disk becomes longer, and accordingly, the shortest recording mark length becomes longer and the recording density lowers. Therefore, in the present embodiment, the amount of information per disk circumference (per track) is increased by one sector each time the disk travels to the outer circumference of the zone, keeping in mind that the shortest recording mark lengths at the innermost circumference of the zone are substantially equal. It was configured to do. Therefore, 68 sectors of information can be recorded per track in the outermost zone of the innermost zone, and the number of wobbles is 159.
Twelve.

As described above, according to the present embodiment, the channel bit clock frequency fp and the wobble frequency fw have a proportional relationship of a natural number N (155), and the number of wobbles per track is changed by switching the zone. Since the recording information is increased for each predetermined natural number (234 wobbles) and the recording information per disk rotation is increased by a predetermined recording unit (1 sector) due to zone switching, the shortest at the innermost circumference of each zone. Since the recording mark length is substantially constant, it is possible to suppress the variation of the recording mark length on the entire surface of the disc.

FIG. 13 shows the relationship between the shortest recording wavelength and the zone in the embodiment of the optical disc according to the present invention.
As shown in FIG. 5, in each of the total Z zones from 0 zone to Z−1 zone, the shortest recording wavelength changes in a sawtooth shape from short to long at the inner circumference and the outer circumference as shown in the figure. This is because the CAV method is used for recording in each zone. In addition,
According to the present invention, as described above, the CAV method is used for recording in each zone. However, in the entire disc, either ZCAV having the same rotation speed in each zone or ZCLV having a different rotation speed between different zones is recorded. It

Next, the recording apparatus of the present invention will be described. FIG. 15 is a block diagram showing an embodiment of the optical disc recording apparatus according to the present invention. In the figure, as described with reference to FIGS. 1 to 6, in the optical disc 10, one cycle of the wobble divided by the zero cross of the wobble amplitude is taken as one unit, and the disc outer circumference side and / or the inner circumference side from the approximate center of the wobble amplitude. Address information is recorded by having a triangular wave groove shape on the side.

At the time of recording, recording is performed by the laser light emitted from the optical pickup 11 to the optical disk 10. The optical pickup photoelectrically converts the reflected light of the laser light from the optical disk 10 to generate a reproduction signal, The reproduction signal is supplied to the address reproduction circuit 12 and the wobble detection circuit 13, respectively. The differential RF reproduction signal in FIG. 11 is a signal obtained by detecting a so-called push-pull signal, which is the difference between the reflected light from the left and right of the groove in the light receiving portion of the optical pickup, in the RF band. The address reproducing circuit 12 detects, from the differential RF signal, the presence / absence of a triangular wave groove shape, its peak position, and the address information shown in FIGS. 8 to 9. The wobble detection circuit 13 detects the wobble signal in the reproduced signal.

The clock generator 14 is composed of, for example, a phase locked loop (PLL) circuit, receives the wobble clock output from the wobble detection circuit 13 as an input, and based on the frequency fw of the wobble clock, the ( The channel bit clock frequency fp (= N × fw) shown in the equation (1) is generated, and the generated channel bit clock frequency signal is phase-locked based on the triangular wave peak position information output from the address reproduction circuit 12. A bit clock for recording is generated by outputting the output to the recording processing device 15.

The recording processing device 15 outputs a desired recording signal
Based on the address information obtained by the address reproduction circuit 12 and the bit clock generated by the clock generation device 14,
Convert to record information and generate. This recorded information is, for example, RL.
L (2, k) code, "1" and "1" in NRZI representation
The number of “0s” between 2 is a minimum of 2, and a maximum of k is block-coded, and is input to the recording circuit 16. The recording circuit 16 converts the input recording information into a predetermined recording format as shown in FIG. 7, for example, and then supplies the recording information to the optical pickup 11.
The recording information is recorded on the optical disc 10 with a predetermined recording waveform by the laser light generated from.

On the other hand, the motor control circuit 18 receives the wobble clock obtained from the differential RF reproduction signal by the wobble detection circuit 12, the zone information obtained from the address reproduction circuit 12, and the reference clock generation circuit 17. The optical disc rotating spindle motor 19 is rotated by the motor drive signal generated based on the reference clock and the ZCLV / ZCAV switching signal.

Here, the wobble detection circuit 13 and the address detection circuit 12 in the recording apparatus of the present invention are shown in FIG.
This will be described in detail using 6. In the pickup 11, the light receiving elements divided in the left and right directions of the groove are used for RF.
Push-pull signal detected up to band, that is, differential RF
The reproduction signal is supplied to the wobble detection circuit 13 and the address reproduction circuit 12.

In the wobble detection circuit 13, the third BPF
In step 3, only the component of the basic wobble frequency fw is extracted from the differential RF reproduction signal, and its output is input to the PLL circuit 4. The PLL circuit 4 generates a wobble clock from the sinusoidal waveform of fw. For example, fw = 470k
3 Hz, the third BPF 3 has a center frequency of 470
It is a BPF of kHz, and the wobble clock generated by the PLL circuit 4 is a rectangular wave of about 470 kHz.

On the other hand, in the address reproduction circuit 12, the differential RF reproduction signal is differentiated by the first BPF 1 having a center frequency higher than the third BPF 3 of the wobble detection circuit 13. For example, similar to the above, fw = 470k
In the case of Hz, a BPF with a center frequency of about 2 MHz is used. From equations (1) and (3), assuming that the channel bit frequency fp = 155 × 470 kHz = 72.85 MHz and k = 13 in the RLL (2, k) code described above, the detected RF waveform The lowest frequency is 5.2MHz
Therefore, in the first BPF 1, the differential RF reproduction signal can be differentiated without being affected by the recording RF signal. Similarly, the second BPF2 also performs the differential processing, and the first BPF1 and the second BPF2 collectively perform the second differential processing.

The state of signal processing at this time will be described with reference to FIGS. 17 to 19. FIG. 17 shows waveforms during groove reproduction of the optical disc according to the embodiment of FIG. 1 for each block of the address reproduction circuit 12 of FIG. The differential RF reproduction signal is differentiated by the first BPF1,
It becomes like BPF1 output. When this is further differentiated again, it becomes like a BPF2 output, and a pulsed waveform is output at the triangular wave peak position of the differential RF reproduction signal.

The pulse-shaped waveform is a triangular wave detection pulse, and the polarity is different depending on whether the triangular wave is on the plus side (inner side of the disc in the figure) or the minus side (outer side of the disc in the figure) in the differential RF signal. . Utilizing this, the decoder 5 sets an appropriate threshold value, detects the presence or absence and the polarity of the triangular wave detection pulse for each cycle of the wobble, and obtains the address information. Further, the zone information is extracted from the address information and supplied to the motor control circuit 18. Also, BPF
The two outputs are output as phase information, and the clock generator 1
4 is also used as a reference signal for phase synchronization.

FIG. 18 shows waveforms during groove reproduction of the optical disc according to the embodiments of FIGS. 2 and 3 for each block of the address reproduction circuit 12 of FIG. The operation waveforms of the differential RF reproduction signal, the BPF1 output, and the BPF2 output are the same as those in FIG. 13, so the description thereof will be omitted.

Since the address bits are arranged in each half cycle of the wobble in the embodiments of FIGS. 2 and 3, the decoder 5 sets an appropriate threshold value, and the presence / absence and the polarity of the triangular wave detection pulse in each half cycle of the wobble. To obtain address information and zone information.

Note that FIG. 18 shows the value of the detected address bit in the case of each of the embodiments of FIGS. In the embodiment of FIG. 2, the address bits are binary, and in the embodiment of FIG. 3, the address bits are ternary.

FIG. 19 shows a waveform at the time of groove reproduction of the optical disk according to the embodiment of FIGS. 4 to 6 for each block of the address reproduction circuit 12 of FIG.
The operation waveforms of the differential RF reproduction signal, the BPF1 output, and the BPF2 output are the same as those in FIG. 13, so the description thereof will be omitted.

In the embodiments of FIGS. 4 to 6, the wobbles are grouped by a predetermined number of consecutive wobble groups, and the address bits are assigned to each wobble group. Presence / absence and polarity are detected to obtain address information and zone information for each wobble group.

At this time, the address bit recorded in the wobble group is discriminated depending on whether or not the number of detected triangular wave pulses is equal to or more than a predetermined number arbitrarily determined with respect to the continuous predetermined number. By doing so, it is possible to prevent erroneous detection of address bits due to a defect of the disk, and more reliable detection of address bits is possible. The address synchronization pattern shown in FIG. 10 can also be detected by the same detection circuit.

Next, the motor control circuit 18 is shown in FIG.
Will be explained. As shown in FIG. 20, the motor control circuit 18 includes a 155 frequency divider 21, a (67 + M) / 67 frequency divider 22 and a frequency / phase comparator 23. In FIG. 20, the 155 frequency divider 21 divides the frequency of the reference clock equal to the frequency fp output from the reference clock generation circuit 17 by 1/155 to generate a signal equal to the wobble frequency fw ( 67 + M) / 67 frequency divider 22.

(67 + M) / 67 frequency divider 22 uses ZCL
When the optical disk 10 is instructed to perform signal recording by the ZCLV method based on the V / ZCAV switching signal, the value of M is set to 0, and the input reference clock is not divided, The same frequency as that of the input is supplied to the frequency / phase comparator 23, where the frequency and phase are compared with the reproduced wobble signal from the wobble detection circuit 13. The frequency and phase error of the two input signals of the frequency / phase comparator 23 are supplied to the spindle motor 19 of FIG. 15 as a rotation error signal through a drive circuit unit (not shown) in the motor control circuit 18, etc. The rotation control is performed so that the frequency and phase of the reproduction wobble signal always maintain a constant relationship with the reference clock. This gives Z
CLV recording is performed.

On the other hand, the (67 + M) / 67 frequency divider 22 is
Based on the ZCLV / ZCAV switching signal, when the optical disk 10 is instructed to perform signal recording by the ZCAV method, the above M is updated with the zone address (M is 0 in the innermost zone, and hereinafter the outer peripheral side). Increase by 1 for each zone).

As described above, in the optical disc of the present embodiment, the number of sectors per track in the zone is increased by 1 each time the zone is moved to the outer peripheral side, so that (67 + M) / The 67 frequency divider 22 ratios the wobble frequency fw extracted from the 155 frequency divider 21 to the ratio of the number of wobbles per track of each zone to the number of wobbles per track of the innermost circumferential zone (that is, each zone). The frequency / phase comparator 2 generates a signal divided by the ratio of the number of sectors per track “67 + M” to the number of sectors per track in the innermost zone “67”).
3 and compares the reproduced wobble signal from the wobble detection circuit 13 with frequency and phase.

The frequency and phase error of the two input signals of the frequency / phase comparator 23 are supplied to the spindle motor 19 of FIG. 6 as a rotation error signal through a drive circuit section (not shown) in the motor control circuit 18. Here, the frequency and phase of the reproduced wobble signal are changed according to the number of wobbles (the number of sectors) per track in each zone, and the rotation is controlled so that the number of rotations is always constant. This allows
ZCAV system recording is performed.

Next, an embodiment of the optical disk reproducing apparatus according to the present invention will be described. FIG. 21 shows a block diagram of an embodiment of an optical disk reproducing apparatus according to the present invention. 15, those parts which are the same as those corresponding parts in FIG. 15 are designated by the same reference numerals, and a description thereof will be omitted.

In FIG. 21, the optical disk 30 shown in FIG.
As described with reference to FIGS. 6A to 6C, one cycle of the wobble divided by the zero cross of the wobble amplitude is set as one unit, and by having a triangular wave groove shape from the approximate center of the wobble amplitude to the outer peripheral side or the inner peripheral side of the disc, Address information is recorded.

The laser light emitted from the optical pickup 11 to the optical disc 30 is reflected by the optical disc 30, and the reflected light is received by the optical pickup 11 and subjected to a predetermined signal processing to be a reproduction signal which is then transmitted to the reproduction circuit 31. Supplied. The reproduction circuit 31 is a known circuit, which corrects the characteristics of the input reproduction signal, extracts the clock from the reproduction signal, and then performs processing such as data decoding to obtain the reproduction information and the bit clock. It is supplied to the reproduction processing device 32 to perform a known reproduction process.

Here, a ZCLV / ZCAV switching signal is input to the motor control circuit 18 depending on whether the optical disk 30 is the ZCLV system or the ZCAV system.
When the optical disk 30 is of the ZCAV system, the zone information obtained from the reproduction signal by the address reproduction circuit 12 is reproduced by the reproduction circuit 31 so that it is advantageous for pulling in the bit clock.
It is also possible to speed up the pull-in of the PLL circuit in the reproduction circuit 31. As a result, even when performing a data seek for a large distance in the radial direction, the rotation speed of the spindle motor 19 can be promptly set to the required rotation speed.

In the present invention, the optical information recording medium is described as a disc shape, but the shape is not limited to that. For example, it may be an optical information recording medium having a card-shaped outer shape, in which a guide groove for recording is formed in a spiral shape or a circumferential shape.

[0090]

As described above, according to the optical information recording medium of the present invention, a half-cycle in one cycle of the wobble is used as a unit and has a sinusoidal portion having the same fundamental wave component and a triangular waveform. Since the groove groove is formed with the part and the address information is obtained by detecting the triangular wave groove-shaped part, it is possible to solve the problems of deterioration of the wobble signal and securing of the position accuracy due to the high density. Further, according to the optical information recording medium of the present invention, address information can be obtained without having a header area, so that it is possible to record data continuously, and signals are recorded continuously. It is highly useful in applications where importance is placed on compatibility with read-only discs. Furthermore, according to the optical information recording medium of the present invention, the actual groove amplitude seen from the amplitude center of the wobble fundamental wave component is substantially the same in both the sine wave portion and the triangular wave portion. There is no offset of the light beam regardless of whether the triangular wave portion is on the peripheral side or the outer peripheral side. Furthermore, according to the optical information recording medium of the present invention, the inclination at the zero cross point of the wobbled groove groove corresponding to the joining portion of the sinusoidal shape and the triangular wave shape has an internal triangular wave shape. Since it does not change between the case of being on the circumference side and the case of being on the circumference side, the jitter in the time axis direction of the wobble signal can be greatly reduced, and the address information can be obtained well. Furthermore, according to the optical information recording medium of the present invention, since one address information can be provided in one cycle or half cycle of the wobble, high density address information can be recorded. Furthermore, according to the optical information recording medium of the present invention, wobbles are grouped by a predetermined number of consecutive wobbles, and the presence or absence of a triangular wave groove-shaped portion is detected for each wobble group, Since the address bits recorded in the wobble group are discriminated depending on whether or not the number is a predetermined number or more, it is possible to prevent erroneous detection of address bits due to a defect of the disk, and more reliable address detection is possible. is there. Furthermore, according to the optical information recording medium of the present invention, the channel bit clock frequency fp and the wobble frequency fw of the information signal to be recorded are set in the relation of fp = N × fw (N is a natural number) over the entire surface of the disc. Therefore, it is possible to easily generate the recording channel clock by multiplying the wobble reproduction frequency by N times. Furthermore, according to the optical information recording medium of the present invention,
Since the groove shape modulated by the triangular wave at the same frequency as the wobble frequency fw is used as the address synchronization pattern, the address synchronization pattern can be easily discriminated and the address synchronization bit can be minimized. Furthermore, in the present invention, the wobbled groove groove is divided into a plurality of zones in the disk radial direction, and wobbles are continuously wobbled at a constant frequency in each zone of the plurality of zones by a constant angular velocity method, In addition, since the wobble phases of the groove grooves adjacent to each other in the disk radial direction are always the same in each zone, the adjacent tracks caused by the wobble phases being opposite phases and the groove intervals being smaller. Crosstalk does not occur. Further, it is possible to detect a good wobble signal.
Furthermore, according to the present invention, the channel bit clock frequency fp and the wobble frequency fw have a proportional relationship of a natural number N, and the number of wobbles per track is increased by a predetermined natural number by switching zones, and Since the recorded information per disc circumference is increased by a predetermined recording unit when the zone is switched, the shortest recording mark length at the innermost circumference of each zone is constant, and the recording mark length fluctuates over the entire disc surface. Can be suppressed. Furthermore, according to the optical information recording medium recording method, reproducing method, recording apparatus, and reproducing apparatus of the present invention, the wobble signal and the address signal are simultaneously read by one beam spot by the push-pull method. No special optical system is required. Furthermore, according to the optical information recording medium recording method, reproducing method, recording apparatus, and reproducing apparatus of the present invention,
Since the address signal is obtained by second-order differentiating the push-pull signal detected by the push-pull method, it is possible to obtain the address signal with a simple circuit. Furthermore, the optical information recording medium recording method of the present invention,
According to the reproducing method, the recording device, and the reproducing device, the position of the recording signal on the optical disc is detected by the address signal detected from the triangular wobble shape, and the zone information and the groove extracted from the address signal are detected. Since the rotation of the optical information recording medium is controlled by the wobble signal, the rotation is controlled so that the wobble frequency fw detected from the reproduction signal always becomes the reference clock frequency preset in the reference clock generation circuit or the like. The ZCLV system rotation control is possible, or the ZCAV system rotation control is possible by controlling the rotation so that the number of rotations is always constant in all zones, and the data seek of a large distance in the radial direction of the optical information recording medium is possible. When performing data recording, the number of rotations of the spindle motor for rotating the optical information recording medium It can shorten the time to settle in renewable range. Furthermore, according to the optical information recording medium recording method, reproducing method, recording device, and reproducing device of the present invention, address signals detected from the triangular wobble shape in the wobble group are counted, and the count number is The address information recorded in the wobble group is determined depending on whether the number is a predetermined number or more arbitrarily determined with respect to a continuous predetermined number, and the position of the recording signal on the optical information recording medium is detected, Since the rotation of the optical information recording medium is controlled by the zone information extracted from the address information and the wobble signal detected from the groove, more reliable address detection is possible and the rotation of the spindle motor for rotating the optical information recording medium. It is possible to shorten the time until the number settles in the range where data can be recorded or reproduced.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of an optical information recording medium of the present invention.

FIG. 2 is a diagram showing an embodiment of the optical information recording medium of the present invention.

FIG. 3 is a diagram showing an embodiment of an optical information recording medium of the present invention.

FIG. 4 is a diagram showing an embodiment of an optical information recording medium of the present invention.

FIG. 5 is a diagram showing an embodiment of the optical information recording medium of the present invention.

FIG. 6 is a diagram showing an embodiment of the optical information recording medium of the present invention.

FIG. 7 is a diagram showing a data format of the optical information recording medium of the present invention.

FIG. 8 is a diagram showing an embodiment of an address format of the optical information recording medium of the present invention.

FIG. 9 is a diagram showing another embodiment of the address format of the optical information recording medium of the present invention.

FIG. 10 is a diagram showing an example of an address synchronization pattern of the optical information recording medium of the present invention.

FIG. 11 is a diagram showing a conventional optical information recording medium.

FIG. 12 is a diagram showing a configuration example of zones of the optical information recording medium of the present invention.

FIG. 13 is a diagram showing an example of recording segments of the optical information recording medium of the present invention.

FIG. 14 is a diagram showing an embodiment of the optical information recording medium of the present invention.

FIG. 15 is a block diagram of an embodiment of an optical information recording medium recording device of the present invention.

FIG. 16 is a block diagram of a wobble detection circuit and an address detection circuit in the optical information recording medium recording device of the present invention.

FIG. 17 is an operation waveform diagram of a wobble detection circuit and an address detection circuit in the optical information recording medium recording device of the present invention.

FIG. 18 is an operation waveform diagram of a wobble detection circuit and an address detection circuit in the optical information recording medium recording device of the present invention.

FIG. 19 is an operation waveform diagram of a wobble detection circuit and an address detection circuit in the optical information recording medium recording device of the present invention.

FIG. 20 is a block diagram of a motor control circuit in the optical information recording medium recording device of the present invention.

FIG. 21 is a block diagram of an embodiment of an optical information recording medium reproducing apparatus of the present invention.

FIG. 22 is a diagram for explaining a conventional optical information recording medium.

FIG. 23 is a diagram for explaining a conventional optical information recording medium.

[Explanation of symbols]

1 First BPF 2 Second BPF 3 Third BPF 4 PLL 5 decoder 10,30 Optical disc 11 Optical pickup 12 Address reproduction circuit 13 Wobble reproduction circuit 14 Clock generation circuit 15 Recording processor 16 Recording circuit 17 Reference clock generation circuit 18 Motor control circuit 19 Spindle motor 21 155 frequency divider 22 (67 + M) / 67 frequency divider 23 Frequency / Phase Comparator 31 playback circuit 32 playback processor

Claims (32)

[Claims] 1. An optical information recording medium provided with a series of wobbled groove grooves, wherein the wobble is based on an amplitude center of maximum and minimum amplitudes of the wobble.
One side or the other side from the amplitude center has a sine wave wobble portion having a sine wave shape, and the other side or one side from the amplitude center has a triangular wave wobble portion, and the groove groove has a wobble portion of the wobble. It is divided into a plurality of zones for each predetermined number in the amplitude direction, and is wobbled at a constant frequency by the constant angular velocity method in each of the divided zones, and in the wobble amplitude direction in each zone. An optical information recording medium, wherein the wobbles of the adjacent groove grooves are formed to have the same phase. 2. An optical information recording medium provided with a series of wobbled groove grooves, wherein the wobble has one side or the other side from the amplitude center with respect to the amplitude center of the maximum and minimum amplitude of the wobble. A sine wave wobble portion having a sine wave shape and a triangular wave wobble portion having a triangular wave shape on the other side or one side from the amplitude center are provided, and the groove grooves are provided at predetermined intervals in the amplitude direction of the wobble. While being divided into a plurality of zones, wobbles with a constant frequency are performed in each of the divided zones by a constant angular velocity method, and in each zone, the wobbles of the groove grooves adjacent to each other in the amplitude direction of the wobble are The phases are formed so as to be the same phase. The wobble frequency wobbling the groove groove with a constant frequency in the zone increases every predetermined natural number, and the amount of recording information recorded in the groove groove in each zone also increases every predetermined recording unit. An optical information recording medium characterized by the above. 3. The optical information recording medium according to claim 1, wherein the wobble cycle is a cycle of a predetermined single frequency. 4. The maximum and minimum amplitudes of the wobble and the amplitude center are constant even when the wobble portion of the triangular wave is on one side or the other side of the amplitude center. Claims 1 to 3
2. The optical information recording medium according to any one of 1. 5. The inclination of each wobble portion immediately before and after the zero cross point of the groove groove corresponding to the joint between the sine wave wobble portion and the triangular wave wobble portion is equal. Item 5. The optical information recording medium according to any one of items 4. 6. The optical information recording medium according to claim 1, wherein address information in the groove groove is recorded on the triangular wobble portion. 7. The address information is recorded depending on whether the triangular wobble portion is on one side or the other side from the amplitude center. 2. The optical information recording medium as described in any one of 1. 8. The optical information recording medium according to claim 1, wherein the address information is recorded depending on the presence or absence of the triangular wobble portion. 9. The wobble portion of the triangular wave is located on one side of the amplitude center of the wobble, on the other side of the amplitude center, or on one side or the other side. In some cases, the three-valued address information of the groove groove is recorded in the wobble according to a case.
The optical information recording medium described in 1. 10. The wobbles are grouped in a predetermined number in succession, and a sinusoidal wobble portion located on one side or the other side from the amplitude center and a triangular wave wobble located on the other side or one side from the amplitude center. 7. The optical information recording medium according to claim 1, further comprising a wobble group formed by grouping a predetermined number of portions and a plurality of portions. 11. The address information is recorded in the wobble group depending on whether the triangular wobble portion is on one side or the other side from the amplitude center. 10. The optical information recording medium described in 10. 12. The optical information recording medium according to claim 10, wherein the address information is recorded in the wobble group depending on the presence or absence of the triangular wobble portion. 13. In the wobble group, when the triangular wobble portion is on one side from the amplitude center, on the other side from the amplitude center, or on neither one side nor the other side. 11. The optical information recording medium according to claim 10, wherein the wobble is used as the ternary address information of the groove groove in the same cases. 14. The wobbles are grouped by a predetermined number that is continuous, and in the wobble group that represents the synchronization bits of the address information, the wobble has the same frequency and both sides of the amplitude center have a triangular wave shape. The optical information recording medium according to any one of claims 1 to 6 and 10 to 12, characterized in that the optical information recording medium is formed. 15. The wobble is a wobble frequency fw.
Is formed so as to satisfy the following relationship with the channel bit clock frequency fp of the information signal to be recorded or reproduced: fp = N × fw (where N is a natural number). 15. The optical information recording medium according to claim 14. 16. The optical information recording medium according to claim 1, wherein the wobble unit length of the wobbled groove groove is constant over the entire medium. 17. A sine-wave wobble having a series of groove grooves formed by wobbles, wherein the wobble has a sine wave shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A wavy portion having a triangular wave shape on the other side or one side from the amplitude center, and the groove groove is divided into a plurality of zones for every predetermined number in the amplitude direction of the wobble. Information is written in the groove groove of the optical information recording medium in which wobbling is performed at a constant frequency by the constant angular velocity method in each partitioned zone, and the address information in each zone is recorded in the triangular wobble portion. An optical information recording medium recording method for recording, wherein the address information detected from the triangular wobble portion A step of detecting a position on the optical information recording medium on the basis of the detected position, and detecting the zone including the detected position; and the optical information recording using a wobble frequency which is a constant frequency in the detected zone. And a control step for controlling the rotation of the medium. 18. A sinusoidal wobble having a series of groove grooves formed by wobbling, wherein the wobble has a sinusoidal shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A portion and a triangular wave wobble portion in which the other side or one side from the amplitude center is a triangular wave shape, and the groove groove is divided into a plurality of zones in the amplitude direction of the wobble and is divided. In each zone, wobbling is performed with a constant frequency by the constant angular velocity method, and the address information indicating the position in each zone on the optical information recording medium has the sine wave wobble portion and the triangular wave wobble portion. The wobbles that are consecutive for a predetermined number are defined as one wobble group, and the wobs in the wobble group An optical information recording medium recording method for recording information in the groove groove, the information being recorded in accordance with the arrangement mode of the triangular wobble portion in the groove, wherein the triangular wobble portion is scanned by scanning the groove groove. The reproduced address signal is counted, and if the count number is less than the predetermined number of the wobble group of 1 and is a predetermined number or more, the address signal of the address information recorded in the wobble group. And a detection step of detecting the zone including the identified wobble group by identifying the wobble group in which the address information related to the determined address signal is recorded, The optical information recording is performed using the zone information and the wobble signal obtained by scanning the groove groove. The optical information recording medium recording method characterized by comprising a control step of controlling the rotation of the medium. 19. The wobble signal of the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Item 1
The optical information recording medium recording method according to claim 7 or 18. 20. The address information or the address signal is obtained by irradiating a single light beam spot onto the optical information recording medium to obtain a push-pull signal obtained by a push-pull method by second-order differentiation. The optical information recording medium recording method according to claim 17 or 18. 21. A sinusoidal wobble having a series of groove grooves formed by wobbling, wherein the wobble has a sinusoidal shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A wavy portion having a triangular wave shape on the other side or one side from the amplitude center, and the groove groove is divided into a plurality of zones for every predetermined number in the amplitude direction of the wobble. In each of the divided zones, wobbling is performed at a constant frequency by a constant angular velocity method, and the wobble portion of the triangular wave is recorded in the groove groove of the optical information recording medium in which the address information in each zone is recorded. An optical information recording medium reproducing method for reproducing the recorded information, wherein A detection step of detecting a position on the optical information recording medium based on address information and detecting the zone including the detected position, and a wobble frequency which is a constant frequency in the detected zone, And a control step for controlling the rotation of the optical information recording medium. 22. A sinusoidal wobble having a series of groove grooves formed by wobbling, wherein the wobble has a sinusoidal shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A portion and a triangular wave wobble portion in which the other side or one side from the amplitude center is a triangular wave shape, and the groove groove is divided into a plurality of zones in the amplitude direction of the wobble and is divided. In each zone, wobbling is performed with a constant frequency by the constant angular velocity method, and the address information indicating the position in each zone on the optical information recording medium has the sine wave wobble portion and the triangular wave wobble portion. The wobbles that are consecutive for a predetermined number are defined as one wobble group, and the wobs in the wobble group An optical information recording medium reproducing method for reproducing information recorded in the groove groove, the information being recorded in accordance with the arrangement of the triangular wobble portion in the groove, wherein the triangle is formed by scanning the groove groove. When the address signal reproduced from the wavy wobble portion is counted and the count number is less than the predetermined number of the wobble group of 1 and is a predetermined number or more, the address information recorded in the wobble group is recorded. A detection step of identifying the wobble group in which the address information related to the determined address signal is recorded, and detecting the zone including the identified wobble group; Using the zone information related to the zone and the wobble signal obtained by scanning the groove groove. The optical information recording medium reproducing method characterized by comprising a control step of controlling the rotation of the optical information recording medium. 23. The wobble signal having the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Item 2
23. The optical information recording medium reproducing method according to claim 1 or 22. 24. The address information or the address signal is obtained by second-order differentiating a push-pull signal obtained by a push-pull method by irradiating one optical beam spot on the optical information recording medium. 23. The optical information recording medium reproducing method according to claim 21 or 22. 25. A sine wave wobble having a series of groove grooves formed by wobbling, wherein the wobble has a sine wave shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A wavy portion having a triangular wave shape on the other side or one side from the amplitude center, and the groove groove is divided into a plurality of zones for every predetermined number in the amplitude direction of the wobble. Information is written in the groove groove of the optical information recording medium in which wobbling is performed at a constant frequency by the constant angular velocity method in each partitioned zone, and the address information in each zone is recorded in the triangular wobble portion. Is an optical information recording medium recording device for recording the address information detected from the triangular wobble portion. The optical information recording is performed using a detection unit that detects a position on the optical information recording medium on the basis of the detected position, and detects the zone including the detected position, and a wobble frequency that is a constant frequency in the detected zone. An optical information recording medium recording device, comprising: a control unit that controls rotation of the medium. 26. A wobble having a series of groove grooves formed by wobbling, wherein the wobble has a sine wave shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A portion and a triangular wave wobble portion in which the other side or one side from the amplitude center is a triangular wave shape, and the groove groove is divided into a plurality of zones in the amplitude direction of the wobble and is divided. In each zone, wobbling is performed with a constant frequency by the constant angular velocity method, and the address information indicating the position in each zone on the optical information recording medium has the sine wave wobble portion and the triangular wave wobble portion. The wobbles that are consecutive for a predetermined number are defined as one wobble group, and the wobs in the wobble group An optical information recording medium recording device for recording information in the groove groove, the information being recorded according to the arrangement of the triangular wave wobble portion in the groove. The reproduced address signal is counted, and if the count number is less than the predetermined number of the wobble group of 1 and is a predetermined number or more, the address signal of the address information recorded in the wobble group. Is detected, the wobble group in which the address information related to the determined address signal is recorded is identified, and a detection unit that detects the zone including the identified wobble group, and the detected zone The optical information recording medium using the zone information and the wobble signal obtained by scanning the groove groove. The optical information recording medium recording apparatus characterized by comprising a control means for controlling the rotation. 27. The wobble signal having the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Item 2
The optical information recording medium recording device according to claim 5 or 26. 28. The address information or the address signal is obtained by second-order differentiating a push-pull signal obtained by a push-pull method by irradiating one optical beam spot on the optical information recording medium. The optical information recording medium recording device according to claim 25 or 26. 29. A sinusoidal wobble having a series of groove grooves formed by wobbling, wherein the wobble has a sinusoidal shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A wavy portion having a triangular wave shape on the other side or one side from the amplitude center, and the groove groove is divided into a plurality of zones for every predetermined number in the amplitude direction of the wobble. In each of the divided zones, wobbles are performed at a constant frequency by a constant angular velocity method, and the wobble portion of the triangular wave is recorded in the groove groove of the optical information recording medium in which the address information in each zone is recorded. An optical information recording medium reproducing device for reproducing the recorded information, wherein the information detected from the triangular wobble portion Detecting a position on the optical information recording medium based on address information, and detecting means for detecting the zone including the detected position, and wobble frequency which is a constant frequency in the detected zone. An optical information recording medium reproducing apparatus comprising: a control unit that controls rotation of the optical information recording medium. 30. A sine wave wobble having a series of groove grooves formed by wobbling, wherein the wobble has a sinusoidal shape on one side or the other side from the amplitude center of the maximum and minimum amplitude of the wobble as a reference. A portion and a triangular wave wobble portion in which the other side or one side from the amplitude center is a triangular wave shape, and the groove groove is divided into a plurality of zones in the amplitude direction of the wobble and is divided. In each zone, wobbling is performed with a constant frequency by the constant angular velocity method, and the address information indicating the position in each zone on the optical information recording medium has the sine wave wobble portion and the triangular wave wobble portion. The wobbles that are consecutive for a predetermined number are defined as one wobble group, and the wobs in the wobble group An optical information recording medium reproducing device for reproducing information recorded in the groove groove, which is recorded in accordance with the arrangement mode of the triangular wobble portion in the groove, wherein the triangle is formed by scanning the groove groove. When the address signal reproduced from the wavy wobble portion is counted and the count number is less than the predetermined number of the wobble group of 1 and is a predetermined number or more, the address information recorded in the wobble group is recorded. Detecting means for detecting the zone including the identified wobble group by identifying the wobble group in which the address information related to the determined address signal is recorded, Using the zone information related to the zone and the wobble signal obtained by scanning the groove groove, The optical information recording medium reproducing apparatus characterized by comprising a control means for controlling the rotation of the optical information recording medium. 31. The wobble signal having the constant frequency, the address information, or the address signal is simultaneously read by a push-pull method by irradiating one optical beam spot on the optical information recording medium. Item 2
The optical information recording medium reproducing apparatus according to claim 9 or 30. 32. The address information or the address signal is obtained by second-order differentiating a push-pull signal obtained by a push-pull method by irradiating one optical beam spot on the optical information recording medium. The optical information recording medium reproducing device according to claim 29 or 30.