JP3599776B2 - Information recording system and information recording medium - Google Patents

Description

[0001]
[Industrial applications]
The present invention is capable of optically reading so-called multimedia information including audio information such as voice and music, video information obtained from cameras and video equipment, and digital code data obtained from personal computers and word processors. The present invention relates to an information recording system for recording on a sheet of paper, various resin films, metal or the like as a simple code, and an information reproducing system for reading such a code. Further, the present invention relates to a recording medium in such an information recording system or information reproducing system.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various media such as a magnetic tape and an optical disk have been known as media for recording voice, music, and the like.
However, even if these media are made in large quantities, the unit price is somewhat expensive, and their existence requires a large space.
[0003]
Furthermore, if it is necessary to hand over the recorded media to another person at a remote location, it takes time and effort to mail it or take it directly. There was also.
[0004]
Therefore, it has been considered to record voice information on paper in the form of image information that can be transmitted by facsimile and that can be copied in large quantities. For example, as disclosed in Japanese Patent Application Laid-Open No. Sho 60-244145, there has been proposed an apparatus in which audio information is converted into image information by converting some audio into an optical code and can be transmitted by facsimile. ing.
[0005]
Further, in Japanese Patent Application No. 4-258262 filed by the applicant of the present invention, from a recording medium in which audio information is recorded in an optically readable code, this code is optically read and returned to the original audio information. By putting the parts in one portable housing, we have proposed a device that can reproduce audio information such as voice and music from a recording medium anywhere and any number of times. An audio information recording / reproducing system that can use a recording medium on which audio information is recorded and a recording medium used for the system have been realized.
[0006]
Further, the applicant of the present invention proposes that the so-called multimedia information as a whole besides audio information, including video information obtained from a camera, a video device, and the like, and digital code data obtained from a personal computer, a word processor, and the like. And filed as Japanese Patent Application No. 5-260464.
[0007]
[Problems to be solved by the invention]
However, input means for inputting audio information, conversion means for converting the audio information input by the input means into an optically readable code, and recording the code converted by the conversion means Recording means for printing and recording on a medium, reading means for optically reading a code printed on the recording medium, inverse conversion means for inversely converting the code read by the reading means into audio information, and the conversion means And a sound output means for outputting the audio information inversely converted by the conversion means as a sound, there is a large amount of audio information converted into a code by the conversion means, and as a result, the converted code is recorded by the recording means by the recording medium. If the print cannot be completed within one line or as a single block, the next row will indicate a plurality of lines or a plurality of lines. There is a possibility that it is performed for printing the code information I.
[0008]
Therefore, if there is a large amount of audio information and the audio information of one reproduction unit is printed over a plurality of recording media, the optical reading means should be arranged in a plurality of rows or clusters when the audio information is reproduced. Unless the manual scanning is performed and all of the printed codes of the converted audio information have been read, the intended audio cannot be reproduced. This is not limited to the case of audio information, and the same applies to the entire multimedia information.
[0009]
The present invention has been made in view of the above point, even when there is a large amount of multimedia information, even when the multimedia information of one reproduction unit is printed over a plurality of columns on a recording medium, Information recording that enables efficient playback of multimedia information with simple operations System and An object is to provide an information recording medium.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, an information recording system according to the present invention comprises: information Input means for inputting the The above information Is converted to an optically readable code, and converted by the conversion means the above Recording means for recording the code optically readable on a recording medium, The conversion unit includes an interleave unit that performs an interleave process on the data of the information input by the input unit, The recording means further stores the code near the code. Manually Optically read above the original information Playback unit for playback device that converts and outputs to Range of the above interleave processing Is recorded.
Alternatively, the information recording system according to the present invention comprises: information Input means for inputting the The above information Is converted to an optically readable code, and converted by the conversion means the above Recording means for recording the code optically readable on a recording medium, The conversion unit includes an interleave unit that performs an interleave process on the data of the information input by the input unit, The recording means further stores the code near the code. Manually Optically read above the original information An optically readable code including control information for controlling a playback operation for a playback device that converts and outputs , For each of the above interleaving ranges It is characterized by recording.
[0012]
Further, the information recording medium according to the present invention, information In an information recording medium having a portion recorded as an optically readable code, The data of the information included in the code is subjected to an interleaving process, Place the code near the above code Manually Optically read above the original information Playback unit for playback device that converts and outputs to Range of the above interleave processing Is recorded.
Alternatively, the information recording medium according to the present invention comprises: information In an information recording medium having a portion recorded as an optically readable code, The data of the information contained in the code has been interleaved, Place the code near the above code Manually Optically read above the original information An optically readable code including control information for controlling a playback operation for a playback device that converts and outputs the , For each of the above interleaving ranges It is recorded.
[0013]
[Action]
That is, according to the information recording system and the information recording medium of the present invention, the code is placed near the code. Manually Optically read the original information Playback unit for playback device that converts and outputs to Range of interleaving that is Is recorded, and by referring to this mark, it is possible to efficiently perform a scanning operation for reproduction.
[0014]
In addition, the information recording of the present invention System and According to the information recording medium, an optically readable code including control information for controlling a reproducing operation for the information reproducing system is provided near the code on the recording medium. , For each range of interleaving By recording, at the time of reproduction, according to the control information contained in the read code information , The information can be reproduced in a range intended in advance according to the control information.
[0015]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First embodiment]
Below, not only audio information such as audio and music, but also video information obtained from cameras, video equipment, etc., and digital codes obtained from personal computers (hereinafter, referred to as personal computers), word processors (hereinafter, referred to as word processors), etc. An embodiment for handling multimedia information including data and the like will be described.
[0016]
FIG. 1 is a block diagram of a multimedia information recording device for recording such multimedia information. In this embodiment, an example in which a dot code described later is adopted as an example of the code will be described.
[0017]
That is, of the multimedia information, audio information is input from a microphone or audio output device 10, amplified by a preamplifier 12, converted to digital by an A / D converter 14, and supplied to a compression processing unit 16. .
[0018]
In the compression processing section 16, input digital audio information is selectively supplied to an ADPCM circuit 20 and a speech synthesis coding circuit 22 by a switch 18. The ADPCM circuit 20 performs data compression by performing adaptive differential PCM on input digital audio information. The voice synthesis coding circuit 22 recognizes one voice of the input digital audio information and converts it into a code. This is because the ADPCM encodes it in the form of audio information and reduces the amount of data, that is, processes the audio information itself, whereas the ADPCM temporarily changes to another synthesized code. This reduces the amount of data. Regarding the switching of the switch 18, for example, the user manually switches according to the purpose, for example. Alternatively, for example, information of high sound quality, such as information from an audio output device, is passed through the ADPCM circuit 20, and, for example, speech or comments of a person from a microphone is passed through the speech synthesis coding circuit 22. If it is determined in advance, it is also possible to adopt a configuration in which the input audio information is recognized at the preceding stage of the switch and automatically switched.
[0019]
Various data coming from a personal computer, word processor, CAD, electronic organizer, communication, etc., already formed as digital code data, are first passed through an interface (hereinafter, referred to as an I / F) 24 to a data form discriminating circuit 26. Is input to The data form discriminating circuit 26 basically determines whether or not compression can be performed by the compression processing unit 16 in the subsequent stage. The data has already undergone some compression processing. The information for which the effect of the above is not obtained is passed directly to the subsequent stage of the compression processing unit 16 by bypassing the compression processing unit 16, and if the input data is uncompressed data, it is sent to the compression processing unit 16 send.
[0020]
The data determined to be non-compressed code data by the data form discriminating unit 26 is input to the compression processing unit 16, and the code data is optimally compressed by a compression circuit 28 such as a Huffman, arithmetic code, or Jiblempel. A compression process is performed. The compression circuit 28 also performs a compression process on the output of the speech synthesis coding circuit 22.
[0021]
The image information of the camera 30 and the video output device 30 is supplied to the compression processing unit 16 after being amplified by the preamplifier 32 and A / D converted by the A / D converter 34.
In the compression processing unit 16, the image area determination and separation circuit 36 determines whether the input image information is a binary image such as a handwritten character or a graph or a multivalued image such as a natural image. The image area determination and separation circuit 36 uses, for example, a method of discriminating image area separation using a neural network as disclosed in Japanese Patent Application No. 5-163635 filed by the present applicant. Separate data and multi-valued image data. The binary image data is compressed as a binary compression by a general binary compression processing circuit 38 such as MR / MH / MMR. For multi-valued image data, a still image compression function such as DPCM or JPEG is used. Is compressed by the multi-level compression processing circuit 40 using
[0022]
The data that has been subjected to the compression processing as described above are combined by the data combining processing unit 42 as appropriate.
Note that it is not always necessary to provide all the information input and compression processing systems in parallel, and one or a plurality of systems may be appropriately combined according to the purpose. Therefore, the data synthesizing unit 42 is not always necessary, and if there is only one type of data system, it is omitted, and the data is directly input to the error correction code adding unit 44 in the next stage. Can be.
[0023]
The error correction code adding section 44 adds an error correction code. Then, in the next data memory unit 46, each data is stored first, and then the interleave processing is performed. This is because it is actually recorded as a dot code, and when it is played back, it is possible to reduce any errors, for example, to reduce the number of block errors due to noise etc. This is a process of distributing the rows at appropriately distant positions (also called shuffling). That is, an operation is performed to reduce the degree of risk from a burst error to a dot error unit.
[0024]
Each time the data memory unit 46 ends the interleave processing, an interleave end signal is sent to the interleave range presentation mark addition processing unit 48 at the timing of the end of the interleave processing. The interleave range presentation mark addition processing unit 48 determines the interleave timing of the input data based on the interleave end signal.
[0025]
The interleaved data is added with the address of the block and an error determination code (CRC or the like) for the address by the address data adding unit 50, and the result is input to the modulation circuit 52. In the modulation circuit 52, for example, 8-bit data is converted to another bit number such as 10-bit 8-10 modulation, and 1024 can be selected from among them, for example, for 8-10 modulation. 8 bits, that is, 256 bits are selected and associated.
[0026]
Thereafter, the marker adding unit 54 generates and adds a marker using a data string that is not included in the 256 data strings associated with the modulation circuit 52. Here, it is possible to perform modulation after adding a marker. However, by adding a marker after modulation in this way, even the marker is modulated, and conversely, it becomes difficult to recognize the marker. This has the effect of eliminating this.
[0027]
The data with the marker added in this way is input to the interleaved range presentation mark addition processing unit 48. The interleaving range presentation mark addition processing unit 48 determines the interleaving timing of the data to which the input marker has been added by referring to the interleaving end signal input from the data memory unit 46, and determines the interleaving timing around the dot data. A mark indicating the interleave range of the data itself is added.
[0028]
For example, as shown in FIG. 2A, assuming that a dot code 62 is printed on a piece of paper (information recording medium) 60 on which, for example, an image 56 and characters 58 are printed, the dot code 62 is If interleaving is performed in units of lines, an interleave range presentation mark 64 indicating the interleave range is printed in units of lines of the dot code 62. In the present embodiment, an interleave range presentation mark 64 is marked at the lower right of each line.
[0029]
By referring to the interleaved range presentation mark 64, the dot code 62 can be efficiently read by the pen-type reproducing device 66 in interleaved units as shown in the usage scene of FIG. You can listen.
[0030]
The data to which the mark indicating the interleaved range has been added is sent to the synthesizing and editing processing unit 70, and other than the generated data, other than the original dot code, data recorded on the recording paper, for example, The image is combined with images, titles, characters, etc., edited in layout, etc., converted to a printer output format or a data format compatible with printing prepress, and transmitted to the next printer system or printing prepress system 72. Can be Then, the image is finally printed on a sheet, a tape, a printed material, or the like by the printer system or the printing plate making system 72.
[0031]
The editing process in the combining and editing processing unit 70 is performed by appropriately adjusting the code length in accordance with the layout of the page information and the dot code, the dot size of the code in accordance with the resolution of a printing machine, a printer, etc. This includes editing operations such as performing a break change, that is, performing a change to move one line to the next line.
[0032]
The printed matter thus printed is transmitted by FAX 74. Further, instead of printing the data generated by the combining and editing processing unit 70, the data may be directly transmitted by fax.
[0033]
Here, the concept of the dot code 62 in the present embodiment will be described with reference to FIG. In the data format of the dot code 62 of this embodiment, one block 76 includes a marker 78, a block address 80, an error detection and error correction data 82 of an address, and a dot data area 84 in which actual data is entered. I have. The blocks 76 are vertically, horizontally, and two-dimensionally arranged, and are collected to form the dot code 62.
Since the range of the interleave changes according to the length of the sound part (that is, the phrase) of the input voice, in order for the reproducing apparatus (reader) to be able to reproduce according to this, A method of adding a code indicating the interleave range to the recording medium side for each dot code is conceivable. In this case, it is necessary to perform the reading process / de-interleaving process on the reader side.
[0034]
For example, the recording side may set a flag indicating that it is the maximum address in the block containing the maximum address of the dot code, or add the value of the maximum address to all the blocks of the dot code, and For example, the deinterleaving process based on the maximum address of the dot code may be performed by a method such as recognizing the maximum address of the dot code.
[0035]
[Second embodiment]
Hereinafter, a second embodiment for handling multimedia information will be described.
The first embodiment described above is characterized by adding an interleave range presentation mark that specifies the range in dot units to interleave units. In the second embodiment, however, the presentation marks are further pen-shaped. The reproduction control is performed by being read by the reproduction device 66.
[0036]
FIG. 3 is a block diagram of a multimedia information recording apparatus for recording such multimedia information. In the figure, the configuration up to the data memory unit 46 is the same as the configuration of the first embodiment described above, and the description thereof is omitted here.
[0037]
The data interleaved in the data memory unit 46 is processed by an address data adding unit 86 to the address of each block, a common serial number for each interleave range unit of the dot code, and an error determination code (CRC) for the address / serial number. Etc.). Then, the result is input to the modulation circuit 52. In the modulation circuit 52, for example, 8-bit data is converted to another bit number such as 10-bit 8-10 modulation, and 1024 can be selected from among them, for example, for 8-10 modulation. 8 bits, that is, 256 bits are selected and associated. Thereafter, a first marker adding section 88 corresponding to the above-described marker adding section 54 generates and adds a first marker using a data string that is not included in the 256 data strings associated with the modulation circuit 52. . Here, it is also possible to perform modulation after adding the first marker. However, by adding the first marker after the modulation, even the first marker is modulated, and conversely. This has the effect of eliminating the difficulty of recognition as the first marker.
[0038]
On the other hand, the address data extracting section 90 extracts, from the address data adding section 86, the common serial number within the interleave range of the corresponding dot code and the maximum address value with CRC added.
[0039]
On the other hand, the control code adding section 92 generates a control code for each dot code. For example, if a reproduction start code is to be added as a control code, a predetermined control code is generated for one data block in terms of code amount. In terms of the amount of codes generated in this way, an error determination code is further added by a control code error determination code adding unit 94 to a predetermined control code for one data block.
[0040]
Finally, in the second data synthesizing unit 96, the common address within the interleave range output from the address data extracting unit 90 and the maximum address value to which the CRC is added, and the control code error determination code The control code to which the error determination code output from the adding unit 94 is added is combined.
[0041]
The common serial number within the interleave range, the maximum address value with the CRC added, and the control code with the error determination code added by the data synthesis unit 96 can be printed on the paper by the modulation circuit 98. Is modulated as follows. In the modulation circuit 98, similarly to the modulation circuit 52, for example, 8-bit data is converted into another data having a different number of bits, such as 10-bit 8-10 modulation. In the case of modulation, 1024 can be selected. Of them, 8 bits, that is, 256 bits are selected and associated.
[0042]
Thereafter, the second marker adding section 100 generates and adds a second marker using a data string that is not included in the 256 data strings associated with the modulation circuit 98.
Here, a configuration of the dot code control block modulated by the second modulation circuit 98 and added with a marker by the second marker adding unit 100 will be described with reference to FIG.
[0043]
The dot code control block 102 includes a (second) marker 104, control code data 106 to which an error correction code is added, a maximum block address, a common serial number (interleave unit common serial number, maximum X address) as shown in FIG. , Maximum Y address) 108, error detection data 110 for an address value and a common serial value, and a block constituted by these is read by a pen-type reproducing device described later, whereby reproduction is performed with predetermined control contents. Is what you do.
[0044]
Here, the predetermined control content is, for example, a reproduction start control, a combination of dot code synthesis and simultaneous output, and various control contents related to reproduction are set according to each dot code. It is possible, and there is an advantage that the user can select execution / non-execution of those control contents. Here, the common serial number added to the dot code control block 102 is added as type identification information for determining whether or not the target dot code control block corresponds to a dot code to be reproduced and controlled. The maximum X address and the maximum Y address are added as completion recognition information for determining whether the corresponding block has been read for all the addresses depending on the control content.
[0045]
Further, the dot code control block 102 may be composed of one block, but in some cases, may be composed of a plurality of blocks that repeatedly describe the same control code, maximum address, common serial value, and the like. .
[0046]
The data to which the marker has been added by the first marker adding unit 54 is added by a dot code control block adding processing unit 112 with a marker indicating the interleave range of the data itself around the dot data. For example, as shown in FIG. 4, assuming that a dot code 62 is printed on a piece of paper (information recording medium) 60 on which, for example, an image 56 and a character 58 are printed, the dot code 62 is interleaved line by line. If so, the dot code control block 102 is printed for each line of the dot code. In this embodiment, a dot code control block 102 is printed at the lower right of each line.
[0047]
By referring to the dot code control block 102, it is of course possible to efficiently read the dot code 62 in units of interleave by the pen-type reproducing device 66 described in the first embodiment. Further, the pen-type reproducing device 66 has a function of correcting / decoding the control code data 106, the maximum block address, and the common serial number 108 from the dot code control block 102, and performing a reproducing operation according to a predetermined control code. In addition, when such a pen-type reproduction device 66 is used, in addition to a function as a mark for efficient reading / reproduction, execution / non-execution of arbitrary (from the printing side) reproduction control Can be selected only on the user side by the difference between the operation of reading / not reading the corresponding dot code control block 102.
[0048]
For example, if all the dot code control blocks 102 record a reproduction start control code (predetermined on the recording side and the reproduction side), this is read for each shuffling unit and the minimum shuffling range is read. The dot code control block 102 may read the data at the stage when all the dot codes have been read and start reproducing all the dot codes. Alternatively, if all the dot code control blocks indicate synthesis, only the voice to be synthesized is selected as a dot code scan and then simultaneously generated, or images and data to be synthesized can be superimposed in a desired layout. It becomes possible.
[0049]
The data such as the dot code 62 and the dot code control block 102 to which the marker is added are sent to the synthesizing and editing processing unit 70, and other than the generated data, data recorded on the original recording paper, for example, The image is combined with an image, a title, a character, or the like, or the layout or the like is edited, converted into a data output format or a data format compatible with printing prepress, and sent to the next printer system or printing prepress system 72. . Then, the image is finally printed on a sheet, a tape, a printed material, or the like by the printer system or the printing plate making system 72.
[0050]
The editing process in the synthesizing and editing processing unit 70 adjusts the code length appropriately in accordance with the layout of the page information and the dot code, the dot size of the code to the resolution of a printing machine, a printer, etc. This includes editing operations such as performing a break change, that is, performing a change to move one line to the next line.
[0051]
The printed matter thus printed is transmitted by FAX 74. Further, instead of printing the data generated by the combining and editing processing unit 70, the data may be directly transmitted by fax.
[0052]
Since the interleaving range changes according to the length of the sound part (that is, a phrase) of the input voice, the interleaving range is recorded in order for the reader to be able to reproduce according to this. A method of adding a code indicating the interleave range to the medium side for each dot code can be changed. In this case, it is necessary to perform the reading process / de-interleaving process on the reader side accordingly.
[0053]
For example, the recording side may set a flag indicating that it is the maximum address in the block containing the maximum address of the dot code, or add the value of the maximum address to all the blocks of the dot code, and For example, the deinterleaving process based on the maximum address of the dot code may be performed by a method such as recognizing the maximum address of the dot code.
[0054]
Alternatively, as in this embodiment, when the marker itself indicating the interleave range has the maximum address information, the reader side can use the information.
[0055]
Here, the configuration of the multimedia information reproducing apparatus in which the dot code control block 102 of this embodiment is printed near the dot code will be described with reference to the block diagram of FIG.
[0056]
The information reproducing apparatus includes a detection unit 114 for reading a dot code from a piece of paper 60 on which a dot code 62 is printed, and a scanning conversion unit 116 for recognizing image data supplied from the detection unit 114 as a dot code and normalizing the image data. A binarization processing unit 118 for converting multi-valued data into binary, a demodulation unit 120, an adjustment unit 122 for adjusting a data string, a data error correction unit 124 for correcting a read error and a data error during reproduction, and It comprises a data separation unit 126 for separating according to the attribute, a decompression processing unit for data compression processing according to each attribute, a display unit or a reproduction unit, or another input device.
[0057]
In the detection unit 114, the light source 128 illuminates the dot code 62 on the paper piece 60, and reflects the reflected light through an imaging optical system 130 such as a lens and a spatial filter 132 for removing moire and the like. The information is detected as an image signal by an image pickup unit 134 such as a CCD or a CMD that converts an electric signal, and is amplified by a preamplifier 136 and output. The light source 128, the imaging optical system 130, the spatial filter 132, the imaging unit 134, and the preamplifier 136 are configured in an external light shielding unit 138 for preventing disturbance to external light. The image signal amplified by the preamplifier 136 is converted into digital information by the A / D converter 140 and supplied to the next-stage scan converter 116.
[0058]
The imaging unit 134 is controlled by the imaging unit control unit 142. For example, when an interline transfer type CCD is used as the imaging unit 134, the imaging unit control unit 142 controls the imaging unit 134 as a V blank signal for vertical synchronization and resets information charges. Image sensor reset pulse signal, charge transfer gate pulse signal for sending charges accumulated in two-dimensionally arranged charge transfer accumulation units to a plurality of vertical shift registers, horizontal shift for transferring charges in the horizontal direction and outputting them outside A horizontal charge transfer CLK signal which is a transfer clock signal of the register, a vertical charge transfer pulse signal for transferring the plurality of vertical shift register charges in the vertical direction and sending the charges to the horizontal shift register are output. The timing of these signals is shown in FIG.
[0059]
Then, the imaging unit control unit 142 supplies the light source with a light emitting cell control pulse for setting the light emission timing of the light source 128 while adjusting to this timing.
Basically, the timing chart of FIG. 6 is a conceptual diagram for one field. The image data is read between the V blank of this one field and the V blank. The light source 128 performs pulse lighting instead of continuous lighting, and performs subsequent pulse lighting while synchronizing in a field unit. In this case, the timing is controlled such that exposure is performed during the V blanking period, that is, while no image charges are being output, so that clock noise during pulse lighting does not enter the signal output. That is, since the light emitting cell control pulse is a very fine digital clock pulse generated by instantaneously applying power, it is necessary to prevent noise caused by the clock pulse from entering an analog image signal. As a countermeasure, the light source 128 is pulsed during the V blanking period. By doing so, the S / N is improved. In addition, turning on the pulse means shortening the light emission time, and thus has a great effect of eliminating the influence of blurring due to the shake and movement of the manual operation. Thus, high-speed scanning can be performed.
[0060]
In addition, even when the reproducing apparatus is tilted and disturbance such as external light enters for some reason in spite of the presence of the external light shielding portion 138, the V-block is set to minimize the S / N deterioration. Immediately before the light source 128 emits light during the ranking period, an image sensor reset pulse is output once to reset the image signal, light emission is performed immediately after that, and reading is performed immediately thereafter.
[0061]
Here, returning to FIG. 5, the scan conversion unit 116 will be described. The scan conversion unit 116 is a unit that recognizes the image data supplied from the detection unit 114 as a dot code (including the dot code of the dot code control block 102) and performs normalization. As a method, image data from the detection unit 114 is first stored in the image memory 144, read out therefrom once, and sent to the marker detection unit 146. The marker detector 146 detects a marker for each block. Then, the data array direction detection unit 148 detects the rotation or tilt and the data array direction using the marker. The address control unit 150 reads out image data from the image memory 144 based on the result so as to correct the image data and supplies the image data to the interpolation circuit 152. At this time, lens aberration information is read from the memory 154 for correcting the distortion of the lens in the imaging optical system 130 of the detection unit 114, and the lens is also corrected. Then, the interpolation circuit 152 performs an interpolation process on the image data, and converts the image data into an original dot code pattern.
[0062]
The output of the interpolation circuit 152 is provided to the binarization processing unit 118. Basically, as can be seen from FIG. 2, the dot code 62 is a pattern of white and black, that is, binary information. At this time, binarization is adaptively performed by the threshold determination circuit 156 while determining a threshold in consideration of the influence of disturbance, the influence of signal amplitude, and the like.
[0063]
Since modulation is performed at the time of recording, the data is first demodulated by the demodulation unit 120, and then data is input to the data string adjustment unit 122.
In the data string adjusting unit 122, first, the block address of the two-dimensional block is detected by the block address detecting unit 158, and then the block address error is detected and corrected by the block address error detecting and correcting unit 160. , The address control unit 162 stores the data in the data memory unit 164 in block units. By storing data in units of block addresses in this way, data can be stored without waste even when data is lost or entered halfway.
[0064]
Then, the data read from the data memory unit 164 is subjected to error correction by the data error correction unit 124. The output of the error correction unit 124 is branched into two, one of which is sent via the I / F 166 to a personal computer, a word processor, an electronic notebook, etc. as digital data. The other is supplied to the data separation unit 126, where the image, handwritten characters and graphs, characters and line drawings, sounds (two types, a sound as it is and a voice synthesized), and a dot code control It is divided into control code data 106 extracted from the block 102.
[0065]
The control code data 106 is sent to the reproduction control unit 168, and performs reproduction control according to the reproduction control contents by referring to the reproduction control table 170 in which predetermined reproduction control contents are stored.
[0066]
The image is equivalent to a natural image and is a multi-valued image. In this case, a decompression process corresponding to JPEG at the time of compression is performed by a decompression processing unit 172, and further, data that cannot be corrected for errors is interpolated by a data interpolation circuit 174.
[0067]
For binary image information such as handwritten characters and graphs, the decompression processing unit 176 performs decompression processing on the compressed MR / MH / MMR and the like, and the data interpolation circuit 178 cannot correct errors. The interpolation of the data is performed.
[0068]
Characters and line drawings are converted to another display pattern via a PDL (page description language) processing unit 180. Note that, in this case, if the line drawing and the character are subjected to the code compression processing after being coded, the expansion processing unit 182 performs the expansion (Huffman, Jib pencil, etc.) processing, and then performs the processing. The data is supplied to the PDL processing unit 180.
[0069]
The outputs of the data interpolation circuits 174 and 178 and the PDL processing unit 180 are combined or selected by a combining or switching circuit 184, converted into analog signals by a D / A converter 186, and then output to a CRT (television monitor) or FMD. (Face mounted display) or the like. Note that the FMD is a spectacle-type monitor (handy monitor) for wearing on the face, and is effective for use in, for example, virtual reality or when viewing a large screen in a small place.
[0070]
For audio information, a decompression process is performed on the ADPCM by the decompression processing unit 190, and a data interpolation circuit 192 interpolates data that cannot be corrected. Alternatively, in the case of speech synthesis, the speech synthesis unit 194 receives the speech synthesis code and actually synthesizes the speech from the code and outputs it. In this case, when the code itself is compressed, as in the case of the character and the line drawing, the decompression processing unit 196 performs decompression processing such as Huffman or Jibrempel before speech synthesis.
[0071]
The outputs of the data interpolation circuit 192 and the voice synthesis unit 194 are synthesized or selected by a synthesis or switching circuit 198, converted into an analog signal by a D / A conversion unit 200, and then output to a speaker, a headphone, or another similar audio output device. Output to 202.
[0072]
In addition, characters and line drawings are output directly from the data separation unit 126 to the page printer or plotter 204, and characters or the like are printed on paper as word processing characters, or line drawings or the like are output as plotters or the like. You can also.
[0073]
Of course, the image can be printed not only by the CRT or FMD but also by a video printer or the like, and the image can be photographed.
Here, the reproduction control unit 168 includes a synthesizing or switching circuit 184, 198, a D / A conversion unit 186, 200, a display device 188 such as a CRT or an FMD, and a sound such as a speaker or a headphone according to the contents of the reproduction control. By controlling the output device 202, a reproducing operation corresponding to the data of each dot code 62 is performed.
[0074]
For example, if the control content is high-speed reproduction of audio, a high-speed reproduction is performed by giving a clock corresponding to the control content to the synthesizing or switching circuit 198 or the D / A converter 200, or the volume of the reproduction is changed. If it is a control content, the sound output device 202 is subjected to volume control according to the control. Regarding the image reproduction control, if the control content is, for example, the screen fades out after a certain period of time, it is conceivable that control corresponding to this is performed on, for example, a CRT.
[0075]
[Third embodiment]
Next, an embodiment for handling audio information such as voice and music will be described.
FIG. 7 is a block diagram of an audio information recording apparatus for recording such audio information, and the same parts as those in the first embodiment are denoted by the same reference numerals.
[0076]
That is, the audio information is input from the microphone or the audio output device 10, amplified by the preamplifier 12, and then the presence / absence of an audio input is determined by the audio presence / absence determination unit 206 as needed. This is composed of, for example, a comparator for comparing and judging based on a preset audio input level. The audio information determined to have voice by the voice presence / absence determining unit 206 is converted into a digital signal by the A / D converter 14, and the digital audio information converted by the A / D converter 14 is transmitted to the ADPCM circuit 20. Supplied. The ADPCM circuit 20 performs data compression by adaptively performing differential PCM on the input digital audio information, and directly inputs the data to an error correction code adding unit 44 in the next stage. Will be added.
[0077]
Then, in the next data memory unit 46, each data is stored first, and thereafter, an interleave process is performed. This is because it is actually recorded as a dot code, and when it is played back, it is possible to reduce any errors, e.g., to improve the correction capability by eliminating any block errors due to noise etc. This is a process of distributing the columns at appropriately distant positions. The interleaved data is added with the address of the block and an error determination code (CRC or the like) for the address by the address data adding unit 50, and the result is input to the modulation circuit 52. In the modulation circuit 52, for example, 8-bit data is converted to another bit number such as 10-bit 8-10 modulation, and 1024 can be selected from among them, for example, for 8-10 modulation. 8 bits, that is, 256 bits are selected and associated.
[0078]
Thereafter, the marker adding unit 54 generates and adds a marker using a data string that is not included in the 256 data strings associated with the modulation circuit 52.
On the other hand, when the sound presence / absence determining unit 206 determines that the sound is in the silent state, the time counter 208 counts the time of the silent state. The time counter 208 continues counting until the next voice input is determined by the voice presence / absence determining unit 206, and inputs the counter value to the counter value encoding unit 210.
[0079]
The counter value encoding unit 210 first stores the input counter value, and repeatedly reads and encodes it over a plurality of blocks in order to strongly correct a data error in the stored counter value. That is, the result is that blocks of the same content are repeatedly printed and recorded in the vertical and horizontal directions. The error correction code adding section 212 adds an error correction code to the counter value repeatedly read and encoded over a plurality of blocks.
[0080]
Further, to the data to which the error correction code is added, the address data adding unit 50 adds a block address and an error determination code (CRC or the like) for the address, and inputs the result to the modulation circuit 52. Is done. Similarly, in the modulation circuit 52, for example, 8-bit data is converted into another bit number such as 10-bit 8-10 modulation, and 1024 selections can be made from among them by 8-10 modulation, for example. Eight bits, namely 256 bits, are selected and associated.
[0081]
After that, the marker adding unit 54 generates and adds a marker in the same manner as at the time of voice input, using a data string that is not included in the 256 data strings associated with the modulation circuit 52.
[0082]
In this manner, the voice presence / absence determination unit 206 determines that voice is present, and the data to which a marker is added, and the data similarly to the voice presence / absence determination unit 206 that is determined to have no voice, and the marker added to the time count value are separately stored. The data is sent to the synthesizing and editing processing unit 70, and is synthesized with an image, a title, characters, or the like, or is edited in a layout or the like, and is converted into a data output format to a printer or a data format compatible with printing prepress. It is sent to the printer system and the printing plate making system 72. Then, the image is finally printed on a sheet, tape, printed matter, or the like by the printer system or the printing plate making system 72.
[0083]
Note that the editing processing in the synthesis and editing processing unit 70 is performed by adjusting the layout of the page information and the dot code, the dot size of the code to the resolution of a printing machine, a printer, or the like, or the black range indicating the range for each audio interleave unit. This includes editing operations such as adding a marker and adding a white marker for each code indicating the silent time.
[0084]
Here, FIG. 8 shows an example of such printing. A dot code 62 is printed as shown in the figure corresponding to the character 58 printed on the paper piece 60. That is, it is composed of a sound part 214 corresponding to a phrase and a black square marker 216 indicating the delimiter, a silent part (weight time) 218 between the phrases and a white marker 220 indicating the delimiter. The marker 216, 220 having two kinds of features allows the user to distinguish between the sound part 214 and the silent part 218, and the pen-type reproduction device 66 scans only the phrase to be reproduced, so that the phrase can be reproduced any number of times. If a pen-type reproducing device capable of decoding / reproducing the control code of the silent section 218 is used to scan the whole at once without worrying about a break in the middle, the same effect as input can be obtained. Playback of the sound (of the whole sentence) becomes possible.
[0085]
Further, the printed matter printed in this manner is transmitted by the FAX 74 as in the first embodiment. Further, instead of printing the data generated by the combining and editing processing unit 70, the data may be directly transmitted by fax.
[0086]
Here, the concept of the dot code 62 in the present embodiment will be described with reference to FIG. 2 of the first embodiment. In the data format of the dot code 62 of this embodiment, one block 76 includes a marker 78, a block address 80, an error detection and error correction data 82 of an address, and a dot data area 84 in which actual data is entered. I have. The blocks 76 are vertically, horizontally, and two-dimensionally arranged, and the blocks 76 are collectively formed in the form of the dot code 62.
[0087]
Here, a value obtained by encoding the time counter value of the time when the audio presence / absence determination unit 206 determines that there is no audio by the counter value encoding unit 210 is also recorded in the dot data area 84.
[0088]
FIG. 9 is an editing example using the third embodiment. Silence is ignored, and only the passage is cut and pasted. Instead of cutting and pasting, you may edit it on a word processor or a personal computer.
[0089]
In the third embodiment, a break in the sound is detected only by the sound presence / absence determining unit 206 without providing a time counting process in the silent part, and the unit of “until the next sound is input” is used. Even if interleaving is performed and a recognizable space is set between markers or dot codes at the time of printing, the same effect can be obtained.
[0090]
Regardless of which method is used, the interleaving range changes according to the length of the sound part (that is, a phrase) of the input voice, so that the reader side can also reproduce according to this. In this case, a code indicating the interleave range must be added to the recording medium side for each dot code. In addition, it is necessary for the reader to perform the reading process / de-interleaving process accordingly.
[0091]
For example, on the recording side, a flag indicating that the block has the maximum address may be set in the block including the maximum address of the dot code, and the value of the maximum address is added to all the blocks of the dot code. In any case, it is necessary to recognize the maximum address of the dot code on the reader side and to perform deinterleaving based on the recognized address.
[0092]
Alternatively, when the marker itself indicating the range of interleaving has the maximum address information as in the second embodiment described above, the reader side can use that information.
[0093]
In the third embodiment, a sound part marker and a silence part marker are added for each dot code of a sound part and a silence part. When converting information to dot code, compared to the conventional technology, the silent portion is extraly dot-coded to occupy less space, or the dot code with the extra silent portion recorded is not scanned by the pen-type information reproducing device. effective.
[0094]
By the way, the audio information is converted into optically readable code information, and after being printed on one recording medium, or after transmission when facsimile is used, after being printed, the above-mentioned printed medium is In a device in which the code information is read by optical reading means, and the audio information is decoded and output again, the recording code is visible and is recorded at an arbitrary position on the recording medium. Conventionally, a visual recording code at an arbitrary position on the recording medium is visually checked and read by a small reproducing apparatus or the like. Therefore, in the dark, the recording code is read from the recording medium by tracing the recording code by the small-sized reproducing device, and the use scene in which the sound is reproduced or the use scene in which a blind person reproduces the sound in the same manner is used. Not expected.
[0095]
In addition, since the recording code was visible, if the recording code recorded on the recording medium was traced by a third party using a similar reproducing device, the recording code would be reproduced in the same manner. There were also problems.
[0096]
Hereinafter, a method for addressing these problems will be described.
FIG. 10 is a block diagram of a voice information printing apparatus for printing audio information such as voice and music as a digital signal on a tape in a first example of the coping method.
[0097]
An audio signal input from an audio input device 10 such as a microphone or an audio output device is amplified by a preamplifier 12 and then converted into a digital signal by an A / D converter 14. The digitized audio signal is subjected to data compression by an ADPCM circuit 20 and an error correction code is added by an error correction code addition circuit 44.
[0098]
Thereafter, interleaving is performed in the memory (interleave) section 46. This interleaving is to two-dimensionally disperse an array of data according to a predetermined rule. When the data is returned to the original array by the reproducing apparatus, bursty stains and scratches on the paper, that is, The errors themselves are dispersed, so that error correction and data interpolation become easier.
[0099]
Next, the output data of the memory unit 46 is added to a block address for each block by an address data adding circuit 50 for each X address and Y address. An error determination code (such as a CRC code) is added.
[0100]
The data to which the CRC code or the like has been added as described above is further subjected to modulation for recording by the modulation circuit 52, and a marker is added to each block by the marker addition circuit 54. The result is printed and recorded by the printer system 72 on a recording medium such as a tape having a predetermined thickness.
[0101]
Here, FIGS. 11A and 11B show the recording medium printed and recorded by the printer system 72. FIG.
The tape 222 having a thickness as shown in FIG. 11A is obtained by easily peeling a top sheet such as a double-sided tape on the back of thick paper or a roll of vinyl or the like. Is exposed, and a dot code 62 is recorded on the surface, cut off as much as necessary, and can be attached to various objects.
[0102]
FIG. 11B shows a thick tape 224 in which the dot code 62 is recorded, cut off, and affixed on a paper surface of a book or the like.
Thereby, for example, as shown in FIG. 12A, the tape 224 having the thickness on which the sound data is printed as the dot code 62 is printed on the sheet (paper piece) 60 as a recording medium. Affixed to the area where the character 58 is not printed. Here, the dot code 62 is composed of a plurality of blocks 76, and each block is composed of a marker 78, a block address 80, and a data area 84. As described above, a pattern that does not normally appear in the recording modulation is used as the marker 78. The data area 84 is composed of data dots 226, and the block address 80 is data representing the position of the block, to which an error correction code (not shown) is added.
[0103]
The dot code 62 in such a format is obtained by changing the data of "1" and "0" such that "1" has a black dot and "0" has no black dot, for example, like a bar code. 72 prints and records on a sheet or a printed tape.
[0104]
When the dot code 62 is printed and recorded by the printer system 72, the physical marker adding circuit 228 generates a characteristic physical marker 230 around the dot code print on the thick tape 224. The presence or absence of the recording of the audio information on the tape and the recording position can be known only by the tactile sensation.
[0105]
Here, the physical marker 230 is provided near the printing start position and the printing end position of the dot code 62 on the tape 224 having a thickness, or both, and can be recognized by tactile sense such as physical unevenness and punch holes. Anything is fine.
[0106]
The tape 224 thus separated and having a thickness moves the pen-type reproducing device 66 described later by physically referring to the edge 232 of the tape 224, and the dot code 62 becomes the reproducing device. The sound is converted into sound and can be listened to by an audio output device 68 such as an earphone.
[0107]
Note that the pen-type reproducing device 66 of the present invention can employ the reproducing device shown in FIG. 5 described above.
Here, FIG. 13 shows another embodiment of the pen-type reproducing device 66. In particular, when reading the dot code 62 recorded on the thick tape 224, the pen-type reproducing device 66 has the tape width at the leading end on the imaging side as shown in FIG. The guide edge 234 having the same width as that of the tape 224 makes it easy to read the dot code 62 along the physical unevenness of the tape 224.
[0108]
This has an effect that, when a blind person reads a dot code or when reading a dot code in darkness, the reading becomes easy, and in addition, there is an effect that a camera shake when reading the dot code is reduced.
[0109]
Next, a second example of a solution to the above problem will be described.
FIG. 14 is a diagram showing the configuration, and is a block diagram of an audio information printing apparatus for printing audio information such as voice and music as digital signals on paper. Here, since the configurations of the voice input device 10 to the marker adding circuit 54 such as a microphone and an audio output device are the same as those in the first example, the description thereof will be omitted.
[0110]
The result of the marker addition by the marker adding circuit 54 is directly recorded on the recording medium 60 having a thickness, such as a book, a magazine, or a notebook, by a transparent paint by the transparent ink printing system 236. It is assumed that the transparent ink is invisible, but can be read by a pen-type reproducing device 66 described later after recording.
[0111]
Here, FIG. 15 shows how the transparent ink printing system 236 prints and records the recording data (dot code) 240 of transparent paint near the edge of a recording medium having a thickness such as a magazine / book 238. . In any case, the recorded data 240 made of a transparent paint is read using the pen-type reproducing device 66 similar to the first example, using the edge of the magazine or book 238 as a read reference line 242 and reproducing the same using the pen-type reproducing device 66 similar to the first example. By physically referring to the reference line 242, the pen-type reproducing device 66 is moved, and the recorded data 240 is detected by the reproducing device 66, converted into sound and listened to by an audio output device 68 such as an earphone. Can be.
[0112]
FIG. 16 shows a small recording apparatus 248 including the transparent ink printing system 236 in the second example as a direct printing unit 244 and the audio input device 10 as a microphone 246.
[0113]
The small recording device 248 has a recording medium edge detecting member 250 for physically detecting an edge of a recording medium having a thickness. After inputting voice to the microphone 246, a recording start button 252 is pressed to directly print. By operating the unit 244, the edge of the physically thick recording medium 60 is detected by the recording medium edge detecting member 250, and the direct printing unit 244 makes the transparent paint in a uniform vicinity from the edge on the recording medium 60. Print with.
[0114]
Here, it is assumed that the format of the print data 240 to be printed is the same as that shown in FIG. 12A of the first example. The recording data 240 of such a format has a thickness of “1” and “0”, for example, similar to a bar code, for example, “1” has a transparent paint and “0” has no transparent paint. It is printed on the recording medium 60 held by the user.
[0115]
Here, FIG. 17 shows a small-sized reproducing apparatus 254 which easily reads and reproduces the dot code 62 from a magazine / book or the like 238 in which the dot code 62 is recorded in the vicinity of the edge by the transparent ink or the like, for example. This is because the edge of the magazine / book etc. 238 is detected as a reading reference line 242 by the recording medium edge detecting member 256 of the main body, and the main body of the small-sized reproducing device 254 is scanned by detecting the reading reference line 242. Accordingly, the dot code 62 is read by the optical reading unit 258. Furthermore, the dot code 62 read by depressing the reproduction start button 260 is decoded, and finally output from the speaker 262.
[0116]
As described above, in an information recording / reproducing system capable of long-time recording and repetitive reproduction of audio, music, images, and character information recorded optically readable, conventionally, any location on this recording medium By visually checking the visible recording code in the above, what was read by a small reproducing device or the like can be read on the basis of physical irregularities, so that the recording medium can be read in the dark. Thus, the recording code can be read by tracing the recording code with the small-sized reproducing device to reproduce the sound, or a blind person can reproduce the sound in the same manner. Also, in the past, since the recording code was visible, if the recording code recorded on the recording medium was traced by a third party using a similar reproducing device, the recording code would be reproduced in the same manner. By using physical irregularities, such as edges, etc. as a reference, a third party does not know that the information is recorded, and it is possible to reliably read data based on these irregularities when reading. It also has an effect on retention.
[0117]
Although the present invention has been described based on the embodiments, the present invention is not limited to the above embodiments, and various modifications and applications are possible within the scope of the present invention. Here, the gist of the present invention is summarized as follows.
[0118]
(1) Input means for inputting multimedia information including at least one of audio information, video information, and digital code data, and converting the multimedia information input by the input means into an optically readable code. Conversion means for converting, and a recording means for optically readable recording the code converted by the conversion means on a recording medium, the conversion means to the input series of multimedia information On the other hand, the recording means converts the code into a dispersed code by performing an interleaving process, and records the dispersed code on a recording medium, and records a mark indicating the dispersedly recorded range in the vicinity of the code. An information recording system characterized by the following.
[0119]
That is, conventionally, when scanning a code with a reader, if a plurality of codes are printed, there is no means for determining how far to scan. On the other hand, since a mark indicating the range of the interleave is recorded, by referring to the mark, it is possible to efficiently perform a scanning operation for reproduction.
[0120]
(2) The information recording system according to (1), wherein the mark is added each time the multimedia information is interleaved.
That is, the addition of the mark is performed every time the multimedia data is interleaved, so that the mark is surely efficiently added for each data unit.
[0121]
(3) The information recording system according to (1), wherein the mark includes control information for controlling a reproduction operation.
That is, by scanning the mark including the control information with the reader, the information can be reproduced in a range intended in advance according to the control information.
[0122]
(4) The information recording system according to (1), wherein the mark includes predetermined information indicating a range of interleaving.
That is, by scanning a mark including predetermined information, the reader side can automatically determine the interleave range.
[0123]
(5) The information recording system according to (1), wherein the mark includes type identification information for distinguishing another code.
That is, it becomes possible for the recording side to provide reproduction control corresponding to each code.
[0124]
(6) The information recording system according to (1), wherein the mark includes completion recognition information for recognizing completion of reading.
That is, it is possible to prevent the reproduction operation from starting before the reading is completed.
[0125]
(7) The information recording system according to (1), wherein the mark is applied after data modulation.
That is, it is possible to prevent a situation in which even the mark is modulated and cannot be determined to be a mark.
[0126]
(8) The information recording system according to (1), wherein the code includes address data, and the recording means extracts address data of the code and generates the mark based on the address data.
[0127]
That is, since the address data is directly extracted from the data, it is not necessary to separately calculate the address value.
(9) The input unit has a determination unit that determines an information range of the input voice, and the conversion unit determines the range of the interleave in accordance with the information range determined by the determination unit. The information recording system according to (1), wherein the input voice is converted into a code.
[0128]
That is, at the time of reproduction, only the reproduction range (for example, a phrase) to be reproduced can be reproduced, or the entire code can be reproduced naturally by tracing the entire code with a reader as it is.
[0129]
(10) Multimedia information including at least one of audio information, video information, and digital code data is dispersed by interleaving and recorded as an optically readable code; Reading means for optically reading the code from a recording medium having a portion indicating a range and a mark including control information for controlling a reproduction operation, which is additionally provided near the code; and a reading means for reading the code. Reproducing means for converting the code into the original multimedia information and outputting the multimedia information; and performing a reproducing operation in the reproducing means in accordance with the control information in the mark recorded alongside the code read by the reading means. An information reproducing system, comprising: a control unit for controlling.
[0130]
That is, by selectively reading the control information for the reproduction operation control, the information can be reproduced in a range intended in advance according to the control information, and no special switch operation is required.
[0131]
(11) The mark includes type identification information for distinguishing another code, and the control means includes means for discriminating data from the mark based on the type identification information in the mark. The information reproduction system according to (1), which is characterized in that:
[0132]
That is, the reproduction control corresponding to each code can be surely performed without fail.
(12) Multimedia information including at least one of audio information, video information, and digital code data is dispersed by interleaving and recorded as an optically readable code; An information recording medium comprising: a mark indicating a range;
[0133]
That is, conventionally, when scanning a code with a reader, if a plurality of codes are printed, there is no means for determining how far to scan. On the other hand, since a mark indicating the range of the interleave is recorded, by referring to the mark, it is possible to efficiently perform a scanning operation for reproduction.
[0134]
(13) The information recording medium according to (12), wherein the mark includes control information for controlling a reproduction operation.
That is, by scanning the mark including the control information with the reader, the information can be reproduced in a range intended in advance according to the control information.
[0135]
(14) The information recording according to (12), wherein the multimedia information is audio information including a sound part and a soundless part, and the code is obtained by coding the sound part and the soundless part. Medium.
[0136]
That is, at the time of reproduction, only the reproduction range (for example, a phrase) to be reproduced can be reproduced, or the entire code can be reproduced naturally by tracing the entire code with a reader as it is.
[0137]
(15) The information recording medium according to (14), wherein the mark is capable of distinguishing the sounded part and the silent part.
That is, it becomes possible to identify whether the corresponding code is a sound part or a silent part by the mark.
[0138]
(16) Input means for inputting multimedia information, conversion means for converting the multimedia information input by the input means into an optically readable code, and conversion by the conversion means Recording means for printing and recording a code on a recording medium, reading means for optically reading the code printed on the recording medium, and inverse conversion means for inversely converting the code read by the reading means into multimedia information, Sound output means for outputting the multimedia information inversely converted by the inverse conversion as a sound, wherein at least the reading means and the inverse conversion means are housed in a portable hand-held casing. In the multimedia information recording / reproducing system described above, when the reading means moves with reference to the physical unevenness of the recording medium, the recording code is read. The read code is optically read by the reading means, the read recording code is inversely converted into multimedia information by the inverse conversion means, and the multimedia information inversely converted by the inverse conversion means is converted into audio information by the sound output means. And a recording apparatus for recording the recording medium, or a reproducing apparatus having physical unevenness detecting means capable of easily reading the recording medium.
[0139]
That is, it can be easily read in the dark and by a blind person.
(17) The recording medium according to (16), wherein physical unevenness is provided near a position where the recording code is printed.
[0140]
That is, in addition to the effect of (16), the scan start position of the reproducing apparatus can be determined under the same situation.
(18) Input means for inputting multimedia information, conversion means for converting the multimedia information input by the input means into an optically readable code, and conversion by the conversion means Recording means for printing and recording a code on a recording medium, reading means for optically reading the code printed on the recording medium, and inverse conversion means for inversely converting the code read by the reading means into multimedia information, Sound output means for outputting the multimedia information inverted by the inverse conversion as sound, wherein at least the reading means and the inverse conversion means are housed in a portable hand-held casing. In the multimedia information recording / reproducing system described above, the recording code is printed on the recording medium with a transparent paint, and is read by the reading means. Readable recording medium, or a recording device for recording the same, or a recording medium recorded near the edge and readable by the reading means, or a recording device for printing the same .
[0141]
That is, information can be confidential by using transparent and readable ink.
(19) The reproducing apparatus according to the above (16), further comprising physical ruggedness detecting means that can be read.
[0142]
That is, in addition to the advantage of the above item (18), it is possible to read the information by physical unevenness.
(20) A recording medium having a thickness on which a recording code is printed at a position where the optical reader can perform a reading operation by using the edge as a reference line.
[0143]
That is, the effect (16) can be obtained without providing special physical unevenness.
(21) The recording medium according to (20), wherein the recording code of the recording medium is printed with a transparent paint readable by an optical reading means.
That is, the effect (19) can be obtained without providing a special mark.
[0144]
【The invention's effect】
As described in detail above, according to the present invention, even when there is a large amount of multimedia information and multimedia information of one reproduction unit is printed over a plurality of columns on a recording medium, a simple Information recording to enable efficient reproduction of multimedia information by operation System and An information recording medium can be provided.
[0145]
That is, according to the present invention, in an information recording / reproducing system capable of long-time recording and repetitive reproduction of audio, music, image, and character information recorded optically readable, a large amount of multimedia information is provided. Yes, even when multimedia information of one playback unit is printed over a plurality of rows on a recording medium, when the reader is manually scanned over a plurality of rows for playback of multimedia information, Since the mark indicating the reproduction unit is provided on the recording medium, multimedia information can be efficiently reproduced by referring to at least the mark.
[0146]
If the mark is composed of a control block for performing reproduction control, in addition to the above-mentioned efficient effects, reproduction control corresponding to the code can be performed by reading the control block with a reader corresponding thereto. This makes it possible to select whether or not to execute the reproduction control based on only whether or not to scan the mark.
[0147]
In addition, for multimedia information, especially audio information, when speech or music is input, the audio input is automatically interleaved for each phrase or phrase, so only the phrase or phrase desired to be heard (or a plurality of (Phrases and passages) can be selectively and repeatedly reproduced. Furthermore, it is possible to edit the text by combining them arbitrarily for each phrase or passage on a cut-and-paste or a personal computer display. Also, even if a marker for each code is not provided, when recording a voice having a long silent period without any remark in a conference or the like, since the silent period is described in a small space, the advantage of this method is as follows. large.
[Brief description of the drawings]
FIG. 1 is a block diagram of a multimedia information recording apparatus according to a first embodiment of the present invention.
FIG. 2A is a diagram illustrating a recording format of a dot code, and FIG. 2B is a diagram illustrating a use situation of a reproducing apparatus according to the first embodiment.
FIG. 3 is a block diagram of a multimedia information recording apparatus according to a second embodiment of the present invention.
FIG. 4 is a diagram showing a recording format of a dot code control block.
FIG. 5 is a block diagram of a multimedia information reproducing apparatus according to a second embodiment.
FIG. 6 is a light source emission timing chart in the multimedia information reproducing apparatus of FIG. 5;
FIG. 7 is a block diagram of an audio information recording device according to a third embodiment of the present invention.
8 is a diagram showing a recording example obtained by the audio information recording device of FIG.
FIG. 9 is a diagram showing an editing example using the third embodiment.
FIG. 10 is a block diagram of a voice information printing apparatus for explaining a first measure for a problem in a visible recording code.
11A and 11B are diagrams showing recording media on which printing is performed by the printer system in FIG. 10;
12A is a diagram showing a dot code recording format in a first countermeasure, and FIG. 12B is a diagram showing a use state of a reproducing apparatus.
FIG. 13 is a diagram showing another embodiment of the pen-type reproducing device in the first measure.
FIG. 14 is a block diagram of a voice information printing apparatus for explaining a second solution to a problem in a visible recording code.
FIG. 15 is a diagram showing a state in which recording data of a transparent paint is printed and recorded near an edge of a thick recording medium by the transparent ink printing system in FIG. 14;
FIG. 16 is a view showing a small recording apparatus including a transparent ink printing system as a direct printing unit and a voice input device as a microphone in a second solution.
FIG. 17 is a diagram showing a small-sized reproducing device in a second coping method.
[Explanation of symbols]
46: data memory (interleave) unit, 48: interleave range presentation mark addition processing unit, 64: interleave range presentation mark, 90: address data extraction unit, 92: control code addition unit, 94: control code error determination code addition unit , 96: second data synthesizing unit, 98: modulation circuit, 100: second marker adding unit, 102: dot code control block, 104: second marker, 106: control code data, 108: maximum block address, common serial number , 110: error detection data, 112: dot code control block addition processing section, 168: reproduction control section, 170: reproduction control table, 206: audio presence / absence determination section, 208: time counter, 210: counter value encoding section, 212: error correction code adding unit, 214: sound part, 216 ... sound part marker , 218 ... silence, 220 ... silence marker.

Claims (6)

Input means for inputting information ;
A conversion unit for converting the information input by the input unit into an optically readable code;
Recording means for optically readable recorded on the recording medium the code converted by said converting means,
With
The conversion unit includes an interleave unit that performs an interleave process on the data of the information input by the input unit,
The recording means further includes a mark near the code indicating a range of the interleave processing, which is a reproduction unit for a reproducing apparatus that manually reads the code optically, converts the code into the original information , and outputs the information. An information recording system for recording information. The mark indicating the range of the interleaving process which is a reproduction unit, information of claim 1, characterized in that the optically readable code containing control information for a reproducing operation control on the reproduction device Recording system. Input means for inputting information ;
A conversion unit for converting the information input by the input unit into an optically readable code;
Recording means for optically readable recorded on the recording medium the code converted by said converting means,
With
The conversion unit includes an interleave unit that performs an interleave process on the data of the information input by the input unit,
The recording means further optically reads, in the vicinity of the code, control information for controlling a reproduction operation for a reproducing apparatus for manually reading the code manually , converting the code into the original information , and outputting the information. An information recording system , wherein a possible code is recorded for each range of the interleaving process . In an information recording medium having a portion where information is recorded as an optically readable code,
The data of the information included in the code has been subjected to an interleaving process,
In the vicinity of the code, a mark indicating the range of the interleave processing, which is a playback unit for a playback device that manually reads the code optically, converts the code into the original information , and outputs the information , is recorded. Characteristic information recording medium. 5. The information according to claim 4 , wherein the mark indicating the range of the interleave processing, which is the playback unit , is an optically readable code including control information for controlling a playback operation of the playback device. recoding media. In an information recording medium having a portion where information is recorded as an optically readable code,
The data of the information included in the code has been subjected to an interleaving process,
In the vicinity of the code, an optically readable code including control information for controlling a reproduction operation for a reproducing apparatus that manually reads the code optically, converts the code into the original information , and outputs the information is provided by the interleave. An information recording medium recorded for each processing range .

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