WO2004013853A1 - 情報記録媒体、情報記録装置及び方法、情報再生装置及び方法、情報記録再生装置及び方法、コンピュータプログラム、並びにデータ構造 - Google Patents
情報記録媒体、情報記録装置及び方法、情報再生装置及び方法、情報記録再生装置及び方法、コンピュータプログラム、並びにデータ構造 Download PDFInfo
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- WO2004013853A1 WO2004013853A1 PCT/JP2003/009601 JP0309601W WO2004013853A1 WO 2004013853 A1 WO2004013853 A1 WO 2004013853A1 JP 0309601 W JP0309601 W JP 0309601W WO 2004013853 A1 WO2004013853 A1 WO 2004013853A1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B20/1251—Formatting, e.g. arrangement of data block or words on the record carriers on discs for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10592—Audio or video recording specifically adapted for recording or reproducing multichannel signals
- G11B2020/10601—Audio or video recording specifically adapted for recording or reproducing multichannel signals surround sound signal
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
- G11B2020/1075—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data
- G11B2020/10759—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data content data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
Definitions
- the present invention relates to an information recording medium such as an optical disk, an information recording apparatus and method, an information reproducing apparatus and method, an information recording and reproducing measure and method, and a data structure relating to recording and reproducing of multi-channel audio data.
- an information recording medium such as an optical disk
- an information recording apparatus and method an information reproducing apparatus and method
- an information recording and reproducing measure and method an information recording and reproducing measure and method
- a data structure relating to recording and reproducing of multi-channel audio data.
- multi-channel audio data such as, for example, 2 channels, 3 channels, 4 channels, 5 channels, and 5.1 channels for general use. For example, for a movie theater or theater, more channels are used. There are things.
- such multi-channel audio data can be recorded.
- the audio data of the left front speaker L f (left front) channel, the right front speaker R f (right front) channel / audio data, and the center speaker C (center) channel audio data are recorded. It is possible.
- the channel assignment mode (channel assignment mode) has already been described in the management's report. ing. Then, in the object data area, audio data of each channel is arranged according to the channel harmful mode.
- a 3-bit channel allocation mode is defined.
- the channel allocation mode indicates the number of audio channels and what each channel number is, together with the audio coding. For example, if the channel allocation mode is "01 Ob" and the audio coding is linear pCM, the number of audio channels is 2, audio channel # 0 is CHI (L-ch), and audio Channel # 1 indicates CH2 (R-ch). For example, if the channel allocation mode is “111b” and the audio coding is linear PCM, the number of audio channels is 5, and audio channels # 0 to # 4 are CH1 to CH5 respectively. It is shown that.
- the sample data of each channel has an appropriate bit length and is arranged alternately. For example, in the case of 16 channels in the case of 5 channels, channels # 0, # 1, # 2 # 3, It is arranged in the order of # 4, # 0, # 1, # 2 # 3, # 4,.... Disclosure of the invention
- the present invention has been made in consideration of, for example, the above-described problems, and has an information recording medium and an information recording apparatus capable of recording multi-channel audio data, which have excellent flexibility in types of speaker arrangements that can be handled. And an information reproducing apparatus capable of reproducing such audio data.
- Device and method a device and method for recording and reproducing such audio data, a computer program for controlling a computer to function as the information recording device, the information reproducing device or the information recording and reproducing device, and It is another object of the present invention to provide a data structure including a control signal capable of recording multi-channel audio data.
- the information recording medium is configured such that the position of each bit in a bit array of a plurality of bits corresponds to each channel corresponding to the position of each speed in a speaker array of a plurality of speakers.
- the reproduction control information including channel assignment information indicating whether or not audio data of each corresponding channel exists, and the presence of the channel assignment information is indicated by the value of each bit.
- a plurality of audio data recorded for each channel is recorded.
- the information recording device is configured such that the position of each bit in a bit array including a plurality of bits corresponds to each channel corresponding to the position of each speed in a speaker array including a plurality of speakers.
- a second recording means is configured such that the position of each bit in a bit array including a plurality of bits corresponds to each channel corresponding to the position of each speed in a speaker array including a plurality of speakers.
- the information recording method is such that the position of each bit in a bit array of a plurality of bits corresponds to each channel corresponding to the position of each speed in a speaker array of a plurality of speakers.
- a generation step of generating reproduction control information including channel assignment information indicating whether or not audio data of each corresponding channel exists, based on the value of each bit, and the generated reproduction control A first recording step of recording information in a control information area on the information recording medium; and a second recording step of recording a plurality of audio data, the presence of which is indicated by the channel allocation information, in a data area on the information recording medium for each channel. And a process.
- the information reproducing apparatus is, for example, an information reproducing apparatus for reproducing the plurality of audio data, the information recording medium of the present invention described above (including various aspects thereof) for solving the above-mentioned problems. Reading the reproduction control information and the plurality of audio data from a recording medium; A plurality of channels of the plurality of audio data recorded on the information recording medium according to a position of each bit in the bit array related to the channel allocation information included in the read reproduction control information. And a reproducing unit that reproduces the plurality of read audio data as the plurality of audio data for each of the specified channels.
- An information reproducing method is, for example, an information reproducing method for reproducing the plurality of audio data from the information recording medium of the present invention (including its various aspects) in order to solve the above-mentioned problem.
- the information recording / reproducing device is configured such that the position of each bit in a bit array including a plurality of bits corresponds to the position of each speed force in a speaker array including a plurality of speakers.
- Second recording means for recording the reproduction control information and the plurality of audio data from the information recording medium.
- a channel of the plurality of audio data recorded on the information recording medium is determined.
- the information recording / reproducing method is such that the position of each bit in a bit array composed of a plurality of bits corresponds to the position of the ⁇ speed force in the speaker array composed of a plurality of speakers.
- ⁇ A generation step of generating reproduction control information including channel assignment information indicating whether or not audio data of each corresponding channel exists; and recording the generated reproduction control information in a control information area on an information recording medium.
- the computer program for controlling the IJ is, for example, a computer program for controlling the computer provided in the information recording apparatus of the present invention described above (including its various aspects) in order to solve the above problem. And causing the computer to function as at least a part of the generation unit, the first recording unit, and the second recording unit.
- the computer program for reproduction (for example, a computer program for controlling the computer provided in the above-described information reproducing apparatus of the present invention (including its various aspects) in order to solve the above-mentioned problems) is a reproduction program!
- the computer program for recording / reproducing control is, for example, a computer for recording / reproducing control for controlling a computer provided in the information recording / reproducing apparatus of the present invention (including its various aspects) in order to solve the above problems.
- the data structure including the control signal is such that the position of each bit in a bit array composed of a plurality of bits is determined by each position in a speaker arrangement I) composed of a plurality of speakers.
- Playback control information that is associated with each channel corresponding to the position of the speaker and includes channel assignment information indicating whether or not audio data of each corresponding channel exists, based on the value of each bit;
- a plurality of audio data whose presence is indicated by the channel assignment information and recorded for each channel are provided.
- a computer program product for recording control in a computer-readable medium is provided and can be executed by a computer. And the computer functions as at least a part of the generating unit, the first recording unit, and the second recording unit.
- a computer program product for controlling reproduction in a computer-readable medium can be executed by a computer provided in the above-described information reproducing apparatus of the present invention (including its various aspects).
- the program instructions are tangibly embodied to cause the computer to function as at least a part of the reading unit, the specifying unit, and the reproducing unit.
- a computer program product for recording / reproduction control in a computer-readable medium is executed by a computer provided in the above-described information recording / reproduction device (including various aspects thereof) of the present invention.
- a possible program instruction is tangibly embodied, and the computer functions as at least a part of the generating unit, the first recording unit, the second recording unit, the reading unit, the specifying unit, and the reproducing unit. .
- a recording medium such as a ROM, a CD-ROM, a DVD-ROM, a z-disk, or the like storing the computer program product.
- the computer program product is a computer-readable program that causes a computer to function as at least a part of the generating unit, the first recording unit, the second recording unit, the reading unit, the specifying unit, and the reproducing unit. It may consist of possible code (or computer readable instructions).
- FIG. 1 shows how a bit array is associated with a speaker array (two-dimensional array) in an example of channel allocation information recorded in the first embodiment of the information recording medium of the present invention. It is a conceptual diagram.
- FIG. 2 is a conceptual diagram showing how a bit array is associated with a speaker array (three-dimensional array) in an example of channel assignment information recorded in a second embodiment of the information recording medium of the present invention. is there.
- FIG. 3 is a schematic plan view showing the structure of an optical disk having a plurality of areas on the upper side according to an embodiment of the information recording medium of the present invention, and a conceptual diagram showing the area structure in the radial direction on the lower side. It is a conceptual diagram shown correspondingly.
- FIG. 4 is a conceptual diagram schematically showing a data structure recorded on an optical disc according to an embodiment of the information recording medium.
- FIG. 5 is a conceptual diagram showing a specific data configuration example of a logical information file according to the embodiment of the information recording medium.
- FIG. 6 is a conceptual diagram showing a specific data configuration example of a data file according to the embodiment of the information recording medium.
- FIG. 7 is a conceptual diagram showing a specific data configuration example of music reproduction time length information in a logical information file according to the embodiment of the information recording medium.
- FIG. 8 is a conceptual diagram showing a specific data configuration example of the configuration channel number information in the logical information file according to the embodiment of the information recording medium.
- FIG. 9 is a conceptual diagram showing a specific data configuration example of the layer structure information in the logical information file according to the embodiment of the information recording medium.
- FIG. 10 is a conceptual diagram showing a specific data configuration example of a channel assignment table according to the embodiment of the information recording medium.
- FIG. 11 is a conceptual diagram showing the recording order of sample data of audio data in association with the bit arrangement on the channel assignment table according to the embodiment of the information recording medium.
- FIG. 12 is a conceptual diagram showing a floor-level channel allocation template and a ceiling-level channel allocation table as one specific example according to the embodiment of the information recording medium.
- FIG. 13 is a conceptual diagram showing an actual bit arrangement in the two channel assignment tables shown in FIG.
- FIG. 14 is a conceptual diagram showing a data structure when the sample data in the specific example of FIG. 13 is arranged as stream data in the data recording area.
- FIG. 15 is a conceptual diagram showing a data structure in a modification of the specific example of FIG.
- FIG. 16 is a block diagram of an embodiment of the information recording / reproducing apparatus of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a conceptual diagram showing a state where a bit array is associated with a speed force array (two-dimensional rookie sequence) in an example of channel assignment information recorded on the information recording medium according to the present embodiment. It is.
- the information recording medium is constituted by an optical disk which can only be optically reproduced or which can be recorded and reproduced.
- the information recording medium includes: (i) a plurality of bits arranged in a one-dimensional, two-dimensional, or three-dimensional array in a bit array composed of a plurality of bits arranged in an l-dimensional or two-dimensional array; Is associated with each channel corresponding to the position of each speed force in J, and the binary value of each bit indicates whether the audio data of each corresponding channel exists. And (ii) a plurality of audio data of which presence is indicated by the channel allocation information and which is recorded for each channel.
- the reproduction control information and the audio data are recorded in a data area which is a main part of the optical disc.
- the audio data may be recorded together with other video data and content data such as sub-picture data.
- the channel allocation information 800 I is such that the position of each bit in the two-dimensionally arranged bit array 8 O 0 b (see the lower side of FIG. 1) is Are assigned to each channel corresponding to the position of each force in the speaker array 800a composed of a plurality of speakers L ⁇ , Lf-m, C, ... two-dimensionally arranged on the plane (Fig. 1 above). More specifically, the RBP (8 bits by 4 rows bit arrangement 800 b in the lower bit arrangement 800 b of FIG. 1 in the order indicated by arrow 804 ( (Relative Byte Pointer) # Line 1 (line 1) is assigned to speaker array 800 a with reference to viewer 800 h PT / JP2003 / 009601
- the row of RBP # 4 in the bit array 800b is made to correspond to the rear side in the speech force array 800a with respect to the viewer 800h.
- the MSB (Most Significant Bit) side of the bit system IJ800b corresponds to the left side of the speaker array 800a with respect to the viewer 80Oh. Further, the LSB (Least Significant Bit) side of the bit array 800b is made to correspond to the right side of the speaker array 800a with respect to the viewer 800h.
- Each row consisting of 8 bits is defined as 1 byte (Byte), and each row number is indicated by RBP.
- the LSB located at the right end in the second to fourth rows of the bit array 800Ob is not used without being made to correspond to the position of the speaker in the speaker array 800a.
- ⁇ As bit j at a predetermined position, for the LSB in the first row, there is channel audio data that does not correspond to the speaker position in the speaker array 800a.
- the LSB in the first row corresponds to the channel for the super woofer (LFE)
- the unused LSBs in the second to fourth rows May be defined so as to indicate whether there is audio data of a channel that does not correspond to the position of the speaker in the speaker array 800a, or some other information can be described. is there.
- the second and third rows in the speaker array 800a have lateral speaker powers L sl and L s 2 based on the audience 800 h.
- R sl and R s 2 are arranged on the left and right. Therefore, in the present embodiment, it is possible to cope with a speaker array including such side speakers.
- the hatched squares indicating the positions of the respective speech forces are the extended arrangement areas.
- the extended arrangement area is located at the leftmost MSB of all rows of the bit array 800 and near the center around the viewer 800 h.
- speakers are not arranged at these positions.
- the bit arrangement [J800b] in the channel assignment information 8001 of the present embodiment is used, these extended arrangements need not be newly defined.
- a speaker arrangement in which speakers are arranged in each of the regions can be dealt with without any problem. For example, when recording the audio data of the channel corresponding to the front left outer speed arranged outside the front left speed L f, information indicating whether or not the audio data corresponding to the front left outer speed exists.
- the bit array 800b is composed of a plurality of bits arranged in each row as a predetermined number of bits of 8 bits and two-dimensionally arranged as a predetermined number of rows in four rows.
- the speaker array 800a includes a plurality of speakers arranged on a plane corresponding to a two-dimensional array of a plurality of bits.
- bit arrangement 800b 8 bits ⁇ 4 rows
- bit arrangement 800b 8 bits ⁇ 4 rows
- at least one of the predetermined number of bits and the predetermined number of rows constituting one row is variable.
- the values of the second, fourth, and sixth bits of the first row in the bit array 800b in FIG. are set to “1”, the LSB in the first row is set to “1”, and the values of the other bits are set to “0”. " From the values of these bits, it is possible to specify that 5.1 channels of audio data corresponding to the speakers Lf, C, Rf, Lr, Rr and LFE are recorded.
- each bit Conversely, if the value of each bit is "0", there is audio data of the corresponding channel. If the value of each bit is "1", it may indicate that there is no audio data for the corresponding channel.
- the audio data typically consists of various types of digital audio data sampled at an appropriate sampling frequency.
- the position of each bit in the bit array 800 b is made to correspond to the position of each speaker in the speed force array 800 a.
- the information required to indicate the position and presence or absence of each speaker in a can be drastically reduced.
- the conventional channel allocation mode in order to indicate the position and presence / absence of each speaker in the speaker array 8OOa as shown in the upper part of FIG.
- the amount increases exponentially with the number of loudspeakers.
- the bit sequence 800 Ob is 8 bits ⁇ 4 rows has been exemplified, but the number of bits constituting each row in the bit array 800 b ⁇ the number of rows is free. Can be increased or decreased.
- each audio data can be assigned to each speaker without any problem. Attached. Even in the case of a new speaker arrangement or a channel assignment corresponding to it, which has never existed before, there is no need to define a new channel assignment mode as in the past, and such a new speaker arrangement can be easily prepared. I can deal with it.
- the flexibility of the types of the arrangement of the speeding force that can be handled is extremely excellent.
- both the bit array and the speaker array are two-dimensional arrays.
- these may be one-dimensional arrays.
- the flexibility is excellent and a corresponding effect can be obtained.
- the channel allocation information 800 I consists of a channel allocation table in which a speech array 800 a and a bit array 800 b are associated with each other, as shown in the lower part of FIG.
- the channel of the audio data can be easily and quickly specified by referring to the channel assignment table.
- the plurality of audio data are packed or packetized, and in each pack or bucket, one or a plurality of samples are arranged in the order of arrangement of a plurality of bits. They are arranged in a corresponding order.
- the “corresponding J order” means, for example, counting from the left, counting from the right, and counting from the front in the speaker array 800a shown in FIG.
- the arrangement order of the bits indicated by the arrow 804 in the lower bit arrangement 800b of FIG. 1 may be used as it is as the recording order of the audio data in the pack or the bucket.
- the order is based on the preset rules, it is possible to specify which channel the audio data of each sampling unit corresponds to at the time of reproduction, so that no problem occurs.
- any sample unit such as 8 bits, 16 bits, and 24 bits can be adopted as the “sample unit”.
- the audio data Without providing an area for storing it in the packet or packet, only the audio data whose presence is indicated because the value of the bit in the bit string 800b is "1" is "1". It is preferable to arrange the data in a sample or a pack in a block or a packet. As a result, the data area for recording audio data can be reduced.
- FIG. 2 is a conceptual diagram showing an example of channel assignment information recorded on the information recording medium according to the present embodiment, in which a bit array is associated with a spin array (3D array). It is.
- the information recording medium is constituted by an optical disk which can only be optically reproduced or which can be recorded and reproduced.
- the speaker array includes a plurality of speakers arranged three-dimensionally, and a plurality of bits in a bit array constituting channel assignment information include a plurality of partial bit arrays.
- the plurality of partial bit arrays are each arranged with a predetermined number of bits in each row and are composed of a plurality of bits arranged two-dimensionally over a predetermined number of rows.
- Each partial bit array is associated with a plurality of channels corresponding to a plurality of speakers arranged on a plane having the same height.
- the multiple partial bit arrangements are different There are as many as the length of the plane.
- Other configurations are the same as those in the above-described first embodiment.
- the channel allocation information g 900 I is determined by the floor level, the middle layer level, and the ceiling level, respectively, as shown in FIG. 1 in the first embodiment.
- the bit array 900b that includes a total of three 2-dimensional bit arrays similar to the bit array 800b shown on the side as "partial bits" is composed of 900b.
- the speaker force array 900 a is composed of speaker arrays 9 O la arranged two-dimensionally at the floor level, speaker force arrays 900 2 a arranged two-dimensionally at the middle layer level, and speaker arrays two-dimensionally arranged at the ceiling level.
- the channel allocation information 900 0 I indicates the position of each bit in the partial bit allocation I J 90 1 b of the bit allocation I J 900 b. 2), the speaker array 9 O 1a is two-dimensionally arranged on the floor level. (See the upper part of Fig. 2) The position of each bit in the partial bit array 902b of the bit array 900b is shown in the lower part of Fig. 2. ), And are associated with each channel corresponding to the position of each power in the power array 90 2a that is two-dimensionally arranged at the intermediate layer level (see the upper part of Fig. 2). The position of each bit in the partial bit array 9 O 3 b of the array 900 b (see the lower side of FIG. 2) is the position of each speaker in the speaker array 900 a that is two-dimensionally arranged at the ceiling level. (See the upper part of Fig. 2).
- the row of RBP # 1 in the partial bit array 90 1 b that is, the first row, indicated by RBP # 1 to # 4, at the floor level in the speaker array 90 1 a with respect to the audience 90 Oh Correspond to the front side (see the upper side in Fig. 2).
- the floor level is associated in the same manner as in the first embodiment.
- Bit Rooster S IJ 900 b, RBP # 5 to # 8 ⁇ View the row of RBP # 5 in the bit array 90 2, that is, the first row, in the middle layer level
- the speed is made to correspond to the front side of the trainer 9002a with reference to the person 900h (see the upper j in FIG. 2).
- the RBP # 8 line that is, the fourth line, is made to correspond to the rear side in the speaker array 902a based on the viewer 900h at the middle layer level.
- the MSB side in the bit array 902 b is made to correspond to the left side in the speaker array 902 a with respect to the viewer 900 h at the intermediate layer level.
- the LSB side of the bit array 902b is set at the middle layer level with respect to the viewer 900h. Corresponds to the right side in the peak force array 102a.
- the row of RBP # 9 in the partial bit array 903 indicated by RBP # 9 to # 12, that is, the first row, is set at the ceiling level with respect to the audience 900h.
- the row of RBP # 12 that is, the fourth row is made to correspond to the rear side of the speaker array 903a based on the viewer 900h at the ceiling level.
- the MSB side of the bit arrangement U 903 corresponds to the ceiling level at the left side of the speech force array 903 a with respect to the viewer 900 h.
- the LSB side in the bit array 903 b is made to correspond to the right side in the train row 903 a with respect to the viewer 900 h at the ceiling level.
- bit arrangement is not limited to this.
- bit portions indicated by RBP # 1 to # 4 are associated with the ceiling-level speaker power arrangement
- the bit portion indicated by 12 may be associated with a floor-level speaker array.
- the flexibility of the types of the arrangement of the speeding force that can be handled is very excellent.
- the present invention can be easily applied to a large number of channels corresponding to a large number of three-dimensionally arranged powers, for example, for a movie theater or a theater.
- the reproduction control information including such channel allocation information 900I includes total channel number information indicating the total number of all channels, and planes having different heights capable of three-dimensionally arranging the speed.
- it further includes hierarchy information indicating the total number of levels and layer configuration information indicating whether at least one speaker is arranged on each plane or each level.
- the “layer configuration information” may be a flag of 1 bit for each layer. For example, if there is a layer such as upper layer, middle layer, lower layer, etc., it is set to “1"; otherwise, it is set to "0".
- the information recording device is configured such that the position of each bit in a bit array composed of a plurality of bits arranged one-dimensionally or two-dimensionally is determined by a plurality of one-dimensionally, two-dimensionally or three-dimensionally arranged speeds.
- Channel assignment corresponding to each channel corresponding to the position of each force in the different force array, and whether or not the audio data of each corresponding channel exists by the binary value of each bit A generation unit that generates reproduction control information including information; a first recording unit that records the generated reproduction control information in a control information area on an information recording medium; and a plurality of units whose presence is indicated by the channel allocation information.
- a second recording unit that records audio data in a data area on the information recording medium for each channel.
- the generating unit includes, for example, a CPU, and the first or second embodiment of the above-described information recording medium of the present invention will be described with reference to FIGS. 1 and 2.
- Playback control information including the obtained channel allocation information.
- the first recording unit records the reproduction control information generated as described above in a control information area on an information recording medium such as an optical disc.
- the second recording unit records a plurality of audio data whose presence is indicated by the channel assignment information in a data area on an information recording medium for each channel.
- the first and second recording units include, for example, a CPU, an encoder, a formatter, an optical pickup, and the like, and reproduce reproduction control information including channel assignment information and audio data on an information recording medium optically. Record.
- the first and second recording units include, for example, a CPU, an encoder, a formatter, a cutting device, etc., and record reproduction control information including channel assignment information and audio data on the information recording medium by cutting. .
- the above-described first or second embodiment of the information recording medium of the present invention can be recorded.
- the information recording device of the present invention can also adopt various aspects in correspondence with the various aspects of the information recording medium of the present invention described above.
- the information recording device can be realized relatively easily by causing a computer to function as the information recording device and executing a computer program for recording control.
- a program that causes a computer to function as the information recording device is loaded into a single computer from a recording medium such as a CD (Compact Disc) or DVD or downloaded via a communication network.
- Run the program It may be made to function as various units such as a generation unit, a first recording unit, and a second recording unit. (Embodiment of information reproducing apparatus)
- the information reproducing apparatus is an information reproducing apparatus that reproduces the plurality of audio data according to the above-described first or second embodiment (including its various aspects) of the information recording medium of the present invention.
- a reading unit that reads the reproduction control information and the plurality of audio data from the information recording medium; and a position of each bit in the bit array related to the channel allocation information included in the read reproduction control information.
- a specifying unit that specifies channels of the plurality of audio data recorded on the information recording medium, and reproduces the read plurality of audio data as a plurality of audio data for the specified channels.
- a reproduction unit is an information reproducing apparatus that reproduces the plurality of audio data according to the above-described first or second embodiment (including its various aspects) of the information recording medium of the present invention.
- the reading unit includes, for example, an optical pickup, a decoder, and the like.
- the information recording medium such as an optical disk can be read from the information recording medium according to the first or second embodiment of the present invention.
- the channel reproduction control information including the channel assignment information described with reference to FIGS. 1 and 2 regarding the mode is read.
- the specifying unit includes, for example, a CPU, etc., and determines a plurality of audio data recorded on the information recording medium by a position of each bit in a bit array related to the channel allocation information included in the read reproduction control information. Identify the channel.
- the reading unit 5 reads a plurality of audio data before and after the channel is specified by the specifying unit.
- the reproducing unit includes, for example, a CPU, a decoder, and the like, and reproduces the number of audio data read by the reading unit as a plurality of audio data for each channel specified by the specifying unit.
- the above-described first or second embodiment of the information recording medium of the present invention can be reproduced.
- the information reproducing apparatus of the present invention can also adopt various aspects.
- the information reproducing apparatus can be realized relatively easily by causing a computer to function as the information reproducing apparatus and executing a computer program for reproduction control.
- a program that causes a computer to function as the information reproducing apparatus can be loaded into a single computer from a recording medium such as a CD or a DVD. After downloading via a communication network, this program may be executed to function as various units such as a reading unit, a specifying unit, and a reproducing unit.
- the information recording / reproducing apparatus is configured such that the position of each bit in a bit array composed of a plurality of bits arranged one-dimensionally or two-dimensionally is one-dimensionally, two-dimensionally or three-dimensionally arranged. Is assigned to each channel corresponding to the position of each power in the power array consisting of speakers, and the binary value of each bit indicates whether or not the audio data of each corresponding channel exists.
- a generation unit that generates reproduction control information including channel allocation information; a first recording unit that records the generated reproduction control information in a control information area on an information recording medium; and the presence is indicated by the channel allocation information.
- a second recording unit for recording a plurality of audio data for each channel in a data area on the information recording medium.
- a reading unit that reads the reproduction control information and the plurality of audio data from the information recording medium; and a bit array related to the channel allocation information included in the read reproduction control information.
- a specifying unit that specifies a channel of the plurality of audio data recorded on the information recording medium according to a position of each bit in the information recording medium; And a reproducing unit for reproducing as a plurality of audio data.
- the information recording / reproducing apparatus has both the configuration of the above-described embodiment of the information reproducing apparatus of the present invention and the configuration of the above-described embodiment of the information reproducing apparatus of the present invention. Therefore, according to the information recording / reproducing apparatus of the present embodiment, the above-described first or second embodiment of the information recording medium of the present invention can be efficiently recorded and reproduced.
- the information recording / reproducing apparatus of the present invention can also adopt various aspects.
- the information recording / reproducing device can be relatively easily realized by causing a computer to function as the information recording / reproducing device and executing a computer program for recording / reproducing control. is there. Specifically, a program that causes a computer to function as the information recording / reproducing device is loaded on a computer from a recording medium such as a CD or DVD or downloaded via a communication network, and then executed. By doing so, the generation unit, first recording unit, second recording unit, reading unit, identification unit, playback unit, etc. You may function as a means.
- reproduction control information including channel allocation information having a bit array corresponding to a speed array is recorded on an information recording medium such as an optical disc.
- an information recording device or an information recording / reproducing device such as an optical disk recorder and a cutting device includes a generation unit for generating such channel allocation information and a first recording unit for recording the channel allocation information.
- an information reproducing apparatus such as an optical disc player or an information recording / reproducing apparatus is provided with a specifying unit for specifying a channel of each audio data based on such channel allocation information.
- the playback method includes a specifying step of specifying a channel of each audio data based on such channel assignment information.
- the data structure including the control signal includes reproduction control information including such channel assignment information. Therefore, according to each embodiment of the present invention, for example,
- the information recording medium of the present invention is applied to an optical disc capable of recording (writing) and reproducing (reading).
- FIG. 3 is a schematic plan view showing the structure of an optical disc having a plurality of areas on the upper side, and the area structure in the radial direction is shown on the lower side in association with a conceptual diagram.
- the optical disc 100 can be recorded by various recording methods such as a magneto-optical method and a phase change method, which can record (write) a plurality of times or only once.
- a magneto-optical method and a phase change method which can record (write) a plurality of times or only once.
- the lead-in area 104, the data area 106 and the read-out area 1 0 8 is provided on the recording surface of the disc body with a diameter of about 12 cm.
- the lead-in area 104, the data area 106 and the read-out area 1 0 8 is provided on the recording surface of the disc body with a diameter of about 12 cm, from the inner circumference to the outer circumference centering on the center hole 102, the lead-in area 104, the data area 106 and the read-out area 1 0 8 is provided. And in each area, for example, Center Hall 1 A group track and a land track are provided alternately in a spiral or concentric manner around 02. This group track may be coupled, or one or both
- FIG. 4 schematically shows a data structure recorded on the optical disc 100.
- a “title” is a logically large unit of content such as one music piece, one music album, one movie, and one TV string.
- the optical disk 100 stores, as a logical structure, a logic for storing various kinds of logical information, “if Koganori Huinore 110”, and data (audio D ata) such as multi-channel audio data.
- Data file 140 The logical information file 110 is recorded, for example, in the data recording area 106 shown in FIG. 3, and is read out before, for example, reproducing the audio data in the data file 140.
- the data file 140 is also recorded in the data recording area 106 shown in FIG. 3, for example, based on various types of logical information for controlling reproduction included in the logical information 110. Data such as stored audio data is reproduced.
- the logical information file 110 stores general information (Title Information) 114 and general information (Title Information) 114.
- RBP Relative Byte Pointer
- # 0, # 1, # 2,... are allocated from the head of the general information 112.
- RBP Relative Byte Pointer
- #0 # 1
- # 2 the head position of each title information.
- the logical information file 110 will be described in more detail later with reference to FIG.
- the data file 140 stores title #i data 142 for each title #i.
- the data file 140 will be described in more detail later with reference to FIG.
- FIG. 5 is a conceptual diagram showing a specific data configuration example of the logical information file
- FIG. 6 is a conceptual diagram showing a specific data configuration example of the data file
- FIG. 7 is a conceptual diagram showing an example of a specific data structure of the music reproduction time length information in the logical information file
- FIG. 8 is a diagram showing an example of a specific data structure of the number of constituent channels in the logical information file
- FIG. 9 is a conceptual diagram showing a specific data configuration example of the layer structure information in the logical information file.
- FIG. 10 is a conceptual diagram showing a specific data configuration example of the channel assignment table.
- the logical information file 110 stores general information 112 and title information 114 as an example of the “reproduction control information” according to the present invention. I do.
- the data file 140 stores audio data in a data area for each title (Title #i data area) for each title number.
- the audio data related to each title is basically in what kind of channel structure or what kind of multi-channel audio data, for example, the surround sound data which is stereo audio data. Freely or variable. It is not necessary to define the data arrangement method for each channel configuration as in the conventional channel assignment mode. In other words, the title information 1 14 (particularly, the channel harm ij pertinent information among them) described below makes it possible to easily identify the audio data having any arbitrary channel configuration even if the audio data has an almost arbitrary channel configuration. .
- the audio data arrangement method of each channel of each title #i is specified in a form associated with a channel assignment table described in detail later.
- the storage position or storage order of the audio data of each title is also variable.
- the general information (General Information) 112 includes a field ID (Field ID) information, a version number (Version N) information, a file size (File SZ) information, and a title information start address pointer ( Title Info SP) information.
- the general information 112 also has a spare field for extension.
- the field ID (Field ID) information has a field size of 16 bytes, and describes an identifier indicating a file data format of the file in, for example, ASCII characters.
- the version number (Version N) information has a 2-byte field size, and describes the format number (purge-on number) of the file according to the following rules, for example.
- the file size information (File SZ) has a field size of 4 bytes, and the total size of the file (ie, general information 112 + title information 114 + size of audio data 140) is stored in the file recently. Describe in total bytes.
- the title information start address pointer (Title Info SP) information has a field size of 4 bytes, and indicates the start address of the recording area of the title information 114 stored in the file and the relative byte from the head of the file. Value (ie, RBP value).
- the Title Information 114 includes Number of Titles information, a search pointer table (Table) for each title, and title #i information (Title # i information).
- the Number of Titles information has a 2-byte field size and describes the total number of titles (number of songs) stored in the file. For example, if the total number of titles is "5", describe as "00005h".
- the recording area for the title information 114 there are areas for the title #i information relating to each title, for the total number of titles described by the title information.
- the search pointer table (Table) of each title information contains the title #i information start address pointer (Titled Info SP) information for the total number of titles.
- the title #i information start address pointer (Title # i Inf 0 SP) information is used to indicate the start address of the recording area of the title information #i stored in the file and the phase from the beginning of the file. Describe in terms of byte value (that is, RBP value).
- Title #i information includes title #i data start address pointer (Title # 1 D Sp) information, song playback time length (PBTM) information, standardized frequency (fs) information, Quantization bit number (Qb) information, number of constituent channels (Ch N) information, layer structure (Layer Layout) information, channel assignment # 1 (ChAsnl) information, channel assignment # 2 (ChAsn 2) information, etc. .
- Title #i Data start address pointer (Title # 1 D Sp) information has a 4-byte finolade size, and sets the start address of the audio data area of title #i relative to the start of the file. Describe in byte value (that is, RBP value).
- the song playback time length (PBTM) information has a 4-byte field size. For example, as shown in FIG. 7, the playback time length of a song corresponding to each title is determined from the MSB side to the LSB side. Write in hours, minutes and seconds for each analysis number. At this time, binary data is described for each digit.
- the sampling frequency (fs) information has a field size of 1 byte, and describes the sampling frequency of the audio stream data of title #i according to, for example, the following rule.
- the quantization bit number (Qb) information has a field size of 1 bit and describes the quantization bit number of the audio stream data of title #i according to, for example, the following rule.
- the number of constituent channels (Ch N) information has a field size of one bit, and indicates the total number of constituent channels of title #i (ie, the total number of channels over all layers or all levels of the speaker array). Described as exemplified in 8. Here, the channel corresponding to the channel for the super woofer (LFE) is also counted as one channel. Therefore, the so-called "5.1 channel” is defined here as "6 channels”.
- the number of constituent channels (Ch N) information constitutes an example of the “total channel number information indicating the total number of all channels” according to the present invention. .
- the layer layout (Layer Layout) information has a field size of 1 byte, and describes the number of layers and the layer configuration of the title #i as exemplified in FIG. 9, for example.
- “Number of Layers” is, for example, in the case of the first embodiment shown in FIG. 1, the same as “1” layer. In the case of the second embodiment, it is the “3” layer.
- the information of the lower 4 bits of the layer structure information indicating the number of constituent speaker layers is the same as that of the present invention.
- the hierarchy information indicating the total number.
- Layer configuration (Layer T, layer M, Layer F)” here means whether or not there is a channel corresponding to the speaker array in which even one speaker is arranged for each layer. That is, the information indicating the layer configuration uses 3 bits out of the upper 4 bits in FIG. 9, and for each layer, it is determined whether or not the channel configuration corresponds to the speaker array in which even one speaker exists. Indicated by one bit. For example, if the 1-bit value of "Layer T" in Fig. 9 is "lb", it means that the channel configuration corresponds to the array of speed forces where at least one speed force is arranged in the ceiling level layer. Show. In FIG.
- three bits out of the upper four bits of the layer structure information indicate the “layer structure indicating whether or not at least one speaker is arranged on each plane” according to the present invention.
- Information Constitute one example.
- Channel assignment # j (Ch Asn j) information has a 4-byte field size, and the floor arrangement of speakers for each layer such as the floor level, intermediate level, and ceiling level indicated by the layer structure information Is described, for example, in FIG.
- channel assignment # j (Ch Asn j) information as an example of “channel assignment information” according to the present invention is constructed as a channel assignment table.
- the arrangement of FIG. 10 has the same bit arrangement as in the first embodiment shown in FIG.
- the bit array (row) in the first byte indicated by RBP # 1 corresponds to the speaker array on the front side with respect to the viewer
- the bit array in the second byte indicated by RBP # 2 The layout IJ (line) corresponds to the middle speaker array (front speaker array) closer to the front with respect to the viewer
- the bit layout IJ (in the third byte indicated by RBP # 3) Row) corresponds to the rear middle speaker arrangement IJ (rear side speed force arrangement) with respect to the viewer
- the bit arrangement (row) in the fourth byte indicated by RBP # 4 is It corresponds to the rear speaker array with respect to the viewer.
- the MSB side of the bit array corresponds to the left side with respect to the viewer, and the LSB side of the bit array corresponds to the right side with respect to the viewer. Further, the MSBs in all the rows are reserved for expansion (Reserved), and for the LSB, the first row is reserved for superwoofer (LFE) and the second to fourth rows are reserved (Reserved). )
- the symbol “L” means that the corresponding speaker position is left or left
- the symbol “R” means that the corresponding speaker position is right or right
- “f” means that the corresponding speaker position is on the front side or near the front
- reference sign “r” means that the corresponding speaker position is on the rear side or near the rear.
- the symbol “m” means that the corresponding speaker position is centered in the front-rear direction
- the symbol “middle” means that the corresponding speaker position is centered in the left-right direction.
- the symbol “C” means that the corresponding speaker position is the center in the left-right direction.
- “LFE” means the channel corresponding to the speaker for the super woofer
- the channel allocation table as shown in FIG. 10 is a table corresponding to the actual speaker layout, and corresponds to the speaker layout when there is audio data of the channel corresponding to each speaker layout.
- Bits in the table are set to “lb” (however, "b” is a sign indicating binary notation as described above). Conversely, when there is no audio data of the channel corresponding to each speaker arrangement, the bit in the table corresponding to the speaker arrangement is set to “Ob”. Further, even if an extension area (Reserved Field) or an extension bit (Reserved Bit) is checked, all are set to "Ob”.
- the same number of bits as the total number of the configuration channels of the title #i described in the configuration channel number (Ch N) information illustrated in FIG. 8 are set to “1 b” in the channel assignment table. .
- the channel assignment table indicating the channel assignment is represented by the first line S “01000100 b (44 h) ", the power of the second to fourth lines S" 00000000 b (00 h) "and a ray value are described.
- the channel assignment indicating the channel assignment In the table, the value of the first row is "01010101 b (55h)", the second and third rows are S “00000000 b (00h)", and the fourth row is S "010001 0O (44h)" You.
- the channel assignment table shown in FIG. 10 By preparing one layer for each layer, channel allocation can be performed in the same manner as described above. That is, theoretically, whenever the number of layers increases one by one, if the channel allocation table as illustrated in FIG. 10 is increased by one, it is possible to cope with the same association rule as described above. As described above, the flexibility of the present embodiment for the arrangement of the force in the height direction is remarkably high.
- the first channel allocation # 1 'symbol (see Fig. 5) should be made to correspond to the floor-level layers.
- the layer closest to the floor may be associated with the first channel allocation # 1 information (see FIG. 5).
- the first channel assignment # 1 information (see Fig. 5) may be associated with the ceiling-level layer.
- the first channel allocation # 1 information (see Fig. 5) should be associated with the floor-level layer, and the last channel allocation should be allocated to the ceiling-level layer.
- FIG. 11 is a conceptual diagram showing the recording order of the audio data sample ⁇ / data in association with the bit arrangement on the channel assignment table.
- FIG. 12 is a concrete example of a floor level
- FIG. 13 is a conceptual diagram showing a channel allocation table and a channel allocation table for a ceiling level.
- FIG. 13 is a conceptual diagram showing an actual bit arrangement in the two channel damage IJ table shown in FIG.
- FIG. 14 is a conceptual diagram showing a data structure when the sample data in this specific example is arranged as stream data in a data recording area
- FIG. 15 shows a data structure in the modified example. It is a conceptual diagram.
- sample data means that the audio data of each channel, which is digital data, is sampled into the number of quantization bits (for example, 16 bits, 20 bits, 24 bits, etc.) at each sampling period. Refers to a set of data. In the case of audio data of a plurality of channels, it is necessary to be reproduced simultaneously at the time of reproduction, so in the stream data, the sample data of each channel is nested or arranged alternately.
- the sample data of each channel is recorded, for example, in the stream data in the order shown by the arrow in FIG. That is, the LSB from the MSB on the first line indicated by RBP # 1 ⁇ LSB from the MSB on the second line indicated by RBP # 2 ⁇ MS on the third line indicated by RBP # 3 03009601
- the two channel assignment tables shown in FIGS. 12 and 13 correspond to the channel assignment # 1 (ChAsnl) information and the channel assignment # 2 (ChAsn 2) shown in FIG. Then, when there are two channel harmful U tables as described above, the floor-level channels are arranged in the order shown in Fig. 11, and then the ceiling-level channels are arranged in the order shown in Fig. 11. By arranging the channels, one stream data is configured.
- the audio data of each channel is arranged as shown in FIG. . That is, for one cycle consisting of audio data portions of channels normally reproduced simultaneously, for example, for sampling timing # 0, sample data L f # 0 ⁇ sample data C f # 0 ⁇ sample data R
- the sample data of each channel is arranged in the order of f # 0 ⁇ sample data Lr # 0 ⁇ sample data Rr0.
- sample data L f # 1 sample data C f # 1 ⁇ sample data R f # 1 ⁇ sample data L r # 1 ⁇ sample data R r # 1 .
- the sample data of each channel is arranged. Such a cycle is repeatedly arranged along the reproduction time axis at each sampling timing # 0, # 1, # 2,....
- each sample data is 16-bit data. However, this may be, for example, 20 bits, 24 bits, or the like, and the number of quantum bits in the title information 114 described above (see FIG. 5). The value, and as long as it is recorded and played back, n — TO
- the deck is not particularly limited.
- sample data related to two sampling timings are grouped together as stream data. It is also possible to arrange. Normally, the sampling cycle is very short, so if the buffer for audio data during playback is slightly increased, the recording time can be recorded as a set of two consecutive sample data that are not simultaneous at the same time but have different playback times. In addition, it is possible to record two or more sample data for each channel collectively, as long as the time range can be handled by the buffer during playback.
- the audio data of the floor level side channels arranged earlier, force this order are arranged after the audio data of channels of calamity wells level side is further d may be reversed
- the direction of the arrow shown in FIG. 11 may be from the left (LSB) to the right (MSB), or from the lower (RBP # 4) row to the upper (RBP # 1) row.
- LSB left
- MSB right
- RBP # 4 lower
- the direction of the arrow shown in FIG. 11 may be from the left (LSB) to the right (MSB), or from the lower (RBP # 4) row to the upper (RBP # 1) row.
- RBP # 4 right
- RBP # 1 upper
- any order may be used as long as a rule for associating the order on the channel assignment table with the order of the sample
- two-dimensional bits in the channel assignment table as shown in FIG. 10 without defining a data arrangement method for each channel configuration as in the conventional channel assignment mode.
- the desired speaker configuration or channel configuration can be easily determined using the arrangement. That is, as shown in FIG. 13, it is sufficient to set a bit only in the position of the speaker of the existing channel in the channel assignment table corresponding to the actual plane arrangement.
- the arrangement of the sample data as shown in FIGS. 14 and 15, only the sample data whose presence is indicated by the channel assignment table need be arranged according to a certain rule, and the arrangement is made for each channel. There is no need to define a special bit array.
- the expansion of the speaker arrangement on the plane requires only changing the number of bits in one row of the two-dimensional bit array constituting the channel assignment table and the number of rows, and is easy in both the vertical and horizontal directions.
- FIG. 16f is a block diagram of the information recording / reproducing apparatus.
- the information recording / reproducing apparatus is roughly divided into a reproducing system and a recording system.
- the information recording / reproducing apparatus is configured to be capable of recording information on the optical disk 100 and reproducing the information recorded thereon. Have been.
- the information recording / reproducing apparatus is used for recording / reproducing as described above.
- the information word self-recording / reproducing device includes an optical pickup 502, a servo unit 503, a spindle motor 504, a demodulator 506, a switching switch 508, an audio decoder 512, and a channel 3 ⁇ 4.
- It includes J DA (digital / analog) converter 514, system controller 520, memory 530, modulator 606, formatter 608, and audio encoder 612 Have been.
- the system controller 520 includes a file (File) system / navigation data generator 521.
- a demodulator 506, a switching switch 508, an audio decoder 512, and a DA converter 514 constitute a reproducing system.
- the modulator 606, the formatter 608, and the audio encoder 612 constitute a recording system power S in general.
- the optical pickup 502, the servo unit 503, the spindle motor 504, the system controller 520, and the memory 530 are generally shared by both the reproducing system and the recording system.
- the file system navigation data generator 521 provided in the system controller 520 is mainly used in a recording system.
- the optical pickup 502 irradiates the optical disc 100 with a light beam LB such as a laser beam at the first power as reading light at the time of reproduction, and modulates the recording light at the second power at the second power at the time of recording. Irradiate.
- the servo unit 503 performs focus servo, tracking servo, etc. in the optical pickup 502 under the control of the control signal Sc1 output from the system controller 520 during reproduction and recording.
- the spindle servo in the spindle motor 504 is performed.
- the spindle motor 504 The optical disk 100 is rotated at a predetermined speed while receiving spindle servo by the unit 503.
- Title information indicating a title to be played back from the optical disc 100, playback conditions thereof, and the like are input from the optical disc 100 to the system controller 520 as data input I2.
- the user interface (not shown) is capable of performing input processing according to the content to be reproduced, such as selection through a title menu screen, under the control of the system controller 520.
- the system controller 520 performs disc playback control on the optical disc 100, and the optical pickup 502 sends the read signal S7 to the demodulator 506.
- the demodulator 506 demodulates the recording signal recorded on the optical disc 100 from the read signal S7, and outputs it as demodulated data D8.
- the logical information file 110 (see FIG. 4) included in the demodulated data D8 is supplied to the system controller 520 as "reproducing logical information" by the switching operation of the switching switch 508. You.
- the system controller 520 executes various types of reproduction control such as a reproduction address determination process and control of the optical pickup 502.
- the audio data included in the demodulated data D8 is supplied to the audio decoder 512 by the switching operation of the switching switch 508.
- the audio decoder 512 receives the decoding (Decode) control by the system controller 5200 based on various kinds of logical information in the logical information file 110, and decodes audio data for each channel. Then, in each of the channels, processing such as digital-to-analog conversion and amplification is performed in the DA converter 514, and audio data is output to, for example, an external speaker.
- decoding decode
- the system controller 520 refers to the channel assignment table (see FIGS. 12 and 13) included in the logical information file 110 to allow the demodulator 50 In step 6, which sample data is the audio data of which channel in the audio data of multiple channels demodulated as stream data (see Figs. 14 and 15) Can be easily identified. Therefore, under the control of the system controller 520, the audio decoder 511 can decode the audio data of each channel for each channel and output the audio data to the DA converter 514 for each channel.
- the DA converter 514, external speakers, and the like included in the information recording / reproducing apparatus do not have a reproducing capability enough to cope with multi-channel audio data recorded on the optical disc 100. Can be considered.
- the multi-channel audio data reproduced from the optical disc 100 is recorded in accordance with a predetermined rule, including the information recording including the external speed. Downmix to audio data that can be played on a playback device! / ⁇ .
- a user input I2 such as title information to be recorded is input to the system controller 520 from a user interface (not shown).
- a user interface (not shown).
- input processing according to the content to be recorded such as selection via the title menu screen, is possible.
- audio data such as music data of each title is input.
- the audio data D Ai is input from outside.
- the audio encoder 612 performs encoding of the input audio data D Ai under the encoding control of the system controller 520 based on the user input I 2. Various encoding methods can be adopted here. Then, the encoded audio data D A e is output.
- the system controller 5 2 0 according to the contents of the user input I 2, or which t place this or in addition to according to the analysis result of the content capture audio data DA i, its full Irushisutemu / Navigation Chillon data generator 5 According to 2 1, various logics as illustrated in Fig. 5 Generates information and outputs it as logical information D 4.
- the formatter 608 is a device that performs a data array format for storing both the audio data DAe and the logical information D4 on the optical disc 100. More specifically, the formatter 608 is provided with a switch Sw 1, which is switched by a switch control signal Sc 5 from the system controller 520, and switches the switch Swl when the audio data DAe is formatted. And outputs the audio data DAe as formatted disk image data D5. Note that the transmission control of the audio data DAi is performed by a control signal Sc8 from the system controller 520.
- the formatter 608 performs switching control by the switch control signal Sc5 from the system controller 520, connects the switch Sw1 to the 2 side, and transfers the logical information D4 to the disk. Output as image D5.
- the modulator 606 modulates the disk image data D5 from the formatter 608 and records it on the optical disk 100 via the optical pickup 502.
- the disk recording control at this time is also executed by the system controller 520. 'As a result, multi-channel audio data corresponding to a complex two-dimensional or three-dimensional arrangement of spikes on the optical disc 100 is transmitted to the information recording / reproducing apparatus together with the above-mentioned channel assignment table. Can be properly recorded.
- the audio data DA i to be recorded may be, for example, audio data received via a communication network or a communication wave, or audio data recorded on another recording medium, and may be generated by a microphone phone.
- the data may be audio data, of any type.
- the audio data may be knocked or packetized by using packs or packets of an appropriate size, for example, 2048 kBytes.
- an appropriate size for example, 2048 kBytes.
- audio data may be recorded on a disc in a program stream format conforming to the MPEG 2 (Moving Picture Extents Group 2) standard, or a transport stream (T (ransport Stream) format.
- MPEG 2 Motion Picture Extents Group 2
- T ransport Stream
- video data-subpicture data recording data for computers, program data, etc. It is also possible to multiplex with various data.
- the recorder or the player according to the optical disk 100 as an example of the information recording medium and the optical disk 100 as an example of the information reproducing / recording apparatus has been described.
- the present invention is not limited to the player, and other high-density recording or recording can be applied to various information recording media corresponding to a high transfer rate and its recorder or player.
- a channel assignment table and the like are recorded on the optical disc 100.
- the information recording / reproducing apparatus includes a system controller 520 that generates such a channel allocation table or the like at the time of recording and specifies a channel allocation at the time of reproduction based on such channel allocation information or the like. Therefore, according to each embodiment of the present invention, the flexibility of the types of the arrangement of the speed forces that can be dealt with, such as the complexity of the two- or three-dimensionally arranged speed force arrangement, is extremely excellent.
- the present invention is not limited to the above-described embodiments, but can be appropriately modified without departing from the spirit and spirit of the invention which can be read from the claims and the entire specification.
- the self-recording medium, the information recording apparatus and method, the information reproducing apparatus and method, the information recording / reproducing apparatus and method, the computer program for controlling the self-recording or reproduction, and the data structure including the control signal are also described. It is within the technical scope of the invention.
- the information recording medium, the information recording apparatus and method, the information reproducing apparatus and method, the information recording and reproducing apparatus and method, the computer program, and the data structure according to the present invention are, for example, multi-channel audio for consumer or business use. It can be used for data recording and reproduction, for example, for optical disks and the like. Further, for example, the present invention can also be used for an information recording medium, an information recording / reproducing device, and the like which are mounted on or connectable to various consumer or business computer devices.
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Abstract
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003252294A AU2003252294A1 (en) | 2002-08-05 | 2003-07-29 | Information recoding medium, information recording device and method, information reproduction device and method, information recording/reproduction device and method, computer program, and data structure |
| US10/523,700 US20050254281A1 (en) | 2002-08-05 | 2003-07-29 | Information recording medium, information recording device and method, information reproduction device and method, information recording/reproduction device and method, computer program, and data structure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002227910A JP2004072345A (ja) | 2002-08-05 | 2002-08-05 | 情報記録媒体、情報記録装置及び方法、情報再生装置及び方法、情報記録再生装置及び方法、コンピュータプログラム、並びにデータ構造 |
| JP2002-227910 | 2002-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004013853A1 true WO2004013853A1 (ja) | 2004-02-12 |
Family
ID=31492233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/009601 Ceased WO2004013853A1 (ja) | 2002-08-05 | 2003-07-29 | 情報記録媒体、情報記録装置及び方法、情報再生装置及び方法、情報記録再生装置及び方法、コンピュータプログラム、並びにデータ構造 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050254281A1 (ja) |
| JP (1) | JP2004072345A (ja) |
| AU (1) | AU2003252294A1 (ja) |
| WO (1) | WO2004013853A1 (ja) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7411528B2 (en) | 2005-07-11 | 2008-08-12 | Lg Electronics Co., Ltd. | Apparatus and method of processing an audio signal |
| JP2008206172A (ja) * | 2008-03-17 | 2008-09-04 | Dimagic:Kk | 音楽コンテンツファイル及び音楽コンテンツ配信方法 |
| TWI530941B (zh) * | 2013-04-03 | 2016-04-21 | 杜比實驗室特許公司 | 用於基於物件音頻之互動成像的方法與系統 |
| JP6228389B2 (ja) * | 2013-05-14 | 2017-11-08 | 日本放送協会 | 音響信号再生装置 |
| JP6228387B2 (ja) * | 2013-05-14 | 2017-11-08 | 日本放送協会 | 音響信号再生装置 |
| JP6228388B2 (ja) * | 2013-05-14 | 2017-11-08 | 日本放送協会 | 音響信号再生装置 |
| US10986070B2 (en) * | 2014-09-29 | 2021-04-20 | Sony Corporation | Transmission apparatus, transmission method, reception apparatus, and reception method |
| JP7396300B2 (ja) * | 2018-12-26 | 2023-12-12 | ソニーグループ株式会社 | 送信装置、送信方法、受信装置および受信方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09259539A (ja) * | 1996-03-22 | 1997-10-03 | Pioneer Electron Corp | 情報記録媒体並びにその記録装置及び再生装置 |
| JP2000236599A (ja) * | 1999-02-15 | 2000-08-29 | Hitachi Denshi Ltd | 多チャンネルステレオ音場再現伝送方式 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6130949A (en) * | 1996-09-18 | 2000-10-10 | Nippon Telegraph And Telephone Corporation | Method and apparatus for separation of source, program recorded medium therefor, method and apparatus for detection of sound source zone, and program recorded medium therefor |
| DE19646055A1 (de) * | 1996-11-07 | 1998-05-14 | Thomson Brandt Gmbh | Verfahren und Vorrichtung zur Abbildung von Schallquellen auf Lautsprecher |
| US6192134B1 (en) * | 1997-11-20 | 2001-02-20 | Conexant Systems, Inc. | System and method for a monolithic directional microphone array |
-
2002
- 2002-08-05 JP JP2002227910A patent/JP2004072345A/ja not_active Ceased
-
2003
- 2003-07-29 WO PCT/JP2003/009601 patent/WO2004013853A1/ja not_active Ceased
- 2003-07-29 AU AU2003252294A patent/AU2003252294A1/en not_active Abandoned
- 2003-07-29 US US10/523,700 patent/US20050254281A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09259539A (ja) * | 1996-03-22 | 1997-10-03 | Pioneer Electron Corp | 情報記録媒体並びにその記録装置及び再生装置 |
| JP2000236599A (ja) * | 1999-02-15 | 2000-08-29 | Hitachi Denshi Ltd | 多チャンネルステレオ音場再現伝送方式 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004072345A (ja) | 2004-03-04 |
| AU2003252294A1 (en) | 2004-02-23 |
| US20050254281A1 (en) | 2005-11-17 |
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