JPH04218055A - Medium for recording plural information - Google Patents

Abstract

PURPOSE:To provide a recording medium M capable of recording the plural information of main information (image information) and auxiliary information (voice information). CONSTITUTION:The main information recording medium (CML) for recording the main information corresponding to electric charge image obtained by a photoelectric conversion means (PCL) for converting electromagnetic radiation having the plural information to be recorded, and an integrated circuit module(ICM) for recording the auxiliary information are formed in one body, thus permitting the plural information of 2-dimensional information, such as image information, and time sequential information, such as voice information, to be efficiently recorded and reproduced by using a simple device.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of information recording medium capable of recording main information (eg, image information) and sub information (eg, audio information).

0002

2. Description of the Related Art When recording an optical image of a subject, an optical camera or a combination device of a television camera and a VTR has been used. It is also possible to record image information as main information and audio information as sub information on the same recording medium.
For example, this has been conventionally used in movie films, magnetic tapes for VTRs, and the like. However, when silver halide photography is used to record an optical image of a subject, complicated processing is required to reproduce the image. In addition, when recording a video signal obtained by capturing an optical image of a subject using an imaging device, such as a television camera, using a VTR, etc., it is necessary to use a device that can reproduce high-quality, high-resolution playback images. An imaging device is required.

0003

[Problems to be Solved by the Invention] Therefore, in recent years, one of the methods to enable the recording and reproduction of high-quality and high-resolution image information is to convert image information into a high-definition charge image on a charge image recording medium. A device that can record images has been proposed. There has also been a proposal to record a charge image corresponding to, for example, still image information of a subject as main information and a charge image corresponding to, for example, audio information as sub information on a charge image recording medium. . However, with conventional charge image recording media, it has been difficult to obtain a plurality of good reproduced information with a simple configuration, and a solution to this problem has been sought.

0004

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a main body that corresponds to a charge image obtained by a photoelectric conversion means that converts electromagnetic radiation having information to be recorded into a charge image. a main information recording medium for recording information;
and an integrated circuit module for recording sub-information, and provides a plurality of information recording medium in which the main information recording medium and the integrated circuit module are integrated. In the multiple information recording medium configured as described above, the main information to be recorded (e.g., image information) is recorded on the main information recording medium, and the sub information (e.g., audio information) is recorded on the integrated circuit module. recorded in Thereby, recording and reproducing of main information and sub information on a recording medium can be performed in good condition with a simple configuration.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a plurality of information recording medium according to the present invention will be described in detail below with reference to the drawings. FIGS. 1A and 1B are side views schematically showing a recording medium for multiple information (hereinafter simply referred to as a recording medium). The recording medium M is one in which a main information recording medium RM for recording main information and an integrated circuit module ICM for recording sub information are integrally formed (integrated), and as shown in FIG. Even if the recording medium RM is layered on the surface of the card-like substrate MC (so-called IC card) in which the integrated circuit module ICM is embedded, as shown in FIG.
M and the integrated circuit module ICM may be integrally formed by dividing the card surface (plane surface) into a main information recording area MR and a sub information recording area SR. When integrally formed on the card surface, the sub-information recording area SR, that is, the integrated circuit module ICM, is arranged at the periphery of the card.

[0006] As the recording layer member CML, a charge retention layer member having a function of retaining a charge image corresponding to the information to be recorded for a long period of time is used; A light modulating material layer member whose optical properties such as a state of light scattering, a state of birefringence, a state of optical rotation, etc. change depending on the amount of light may be used. The recording medium M shown in FIG. 1 is an example constructed based on the main information recording medium RM shown in FIGS. 3A and 3D, which will be described later.

In the card-shaped substrate MC, a semiconductor memory (RAM) in which sub-information is recorded is embedded as an integrated circuit module ICM, and a group of terminals TM for the address/data bus of the semiconductor memory is located on one side. It is provided.

Furthermore, the main information recording medium RM includes an information recording medium (hereinafter referred to as a recording layer member) CML and an electrode Et2.
are laminated together. The electrode Et2 of the main information recording medium RM is formed to extend as appropriate so as to cover the integrated circuit module (memory) ICM so as to also function as a shield plate. Then, the electrode Et2 of the main information recording medium RM and the earth (ground) E1 of the integrated circuit module (memory) ICM are electrically connected by the earth line EL, and the earth E2 of the main information recording device and the earth (ground) E1 of the integrated circuit module (memory) ICM are electrically connected to each other. (See FIGS. 1 and 2).

[0009] Here, the configuration of the main information recording medium RM and the configuration of the recording system for this recording medium will be explained in detail. In (A) to (D) of FIG. 3, O is an object, TL is an imaging lens, RM is a main information recording medium, BP1 is a transparent substrate (for example, a glass substrate), MC is a substrate, Et1 is a transparent electrode, and Et2 is a Electrode, PCL is photoconductive layer member, CML is recording layer member in information recording medium RM, E is power source, PS
is an optical shutter, SW is a switch (voltage shutter), R
is a resistor and WH is a write head. Figures (A) to (C)
) The main information recording medium RM shown in ) uses the above-mentioned light modulating material layer member as the recording layer member CML,
In addition, the main information recording medium RM shown in FIG.
The above-mentioned charge retention layer member is used as the recording layer member CML thereof.

The charge retention layer member used as the recording layer member CML is, for example, a charge retention layer member composed of a material film exhibiting a high electrical resistance value, or, for example, a charge retention layer member composed of a material film exhibiting a high electrical resistance value, or a material film having a high electrical resistance value. A charge retention layer member configured by dispersing retention particles and other configurations can be used. In addition, the optical modulation layer member used as the recording layer member CML is such that its optical properties change depending on the applied electric field, and the above-mentioned change in optical properties occurs only when the electric field is applied. Materials (e.g. lithium niobate, liquid crystal, polymer-liquid crystal composite film, PL
ZT) is used, or the intensity distribution of the applied electric field is memorized as a form of change in optical properties, and when light with a certain intensity distribution is given to it, the intensity according to the above memorized contents A material capable of producing light having a distribution (for example, a polymer-liquid crystal composite film, liquid crystal, scattering type PLZT), etc. can be used.

Further, the main information recording medium RM shown in FIGS. 10A and 10D has a structure in which a substrate MC, an electrode Et2, and a recording layer member CML are laminated, and the main information recording medium RM shown in FIGS. The main information recording medium RM shown in (B) has a configuration in which a substrate MC, an electrode Et2, a recording layer member CML, and an insulating layer IL are laminated, and is shown in (C) of the same figure. The main information recording medium RM has a substrate MC and an electrode Et2.
, recording layer member CML, photoconductive layer member PCL, and transparent electrode E
This is a configuration in which t1 and substrate BP1 are stacked. In the recording system shown in Figures (A) to (D), a power source E is connected between the transparent electrode Et1 and the electrode Et2 via a switch SW, and the switch SW is in an on state. When the transparent electrode Et
A predetermined electric field is generated between the electrode Et2 and the electrode Et2. This switch SW is controlled to open and close to perform on/off operations that match the recording conditions of the main information recording medium RM, and the amount of light from the object O is controlled by an optical shutter PS to ensure that good exposure conditions are met. It is configured such that the image of the subject O is captured.

[0012] The write head WH also has a substrate BP1.
A transparent electrode Et1 and a photoconductive layer member PCL are laminated on the
The optical image of the object O is formed on the photoconductive layer member PCL by the imaging lens TL via the transparent electrode Et1 when the optical shutter PS is opened. In each of the recording systems shown in (A), (B), and (D) of the same figure, the photoconductive layer member PCL described above is attached to the writing head WH along with the substrate BP1 and the transparent electrode Et1.
The photoconductive layer member PCL in this write head WH is disposed facing the main information recording medium RM. In the recording system shown in FIG. 4C, the photoconductive layer member PCL described above is used as one of the constituent members of the main information recording medium RM.

When a high-definition optical image is applied to one end face of the photoconductive layer member PCL, a high-definition optical image is applied to the other end face under application of an electric field of appropriate strength. It is made using a photoconductor material (eg, amorphous silicon) that has properties such that it can generate a charge image of 300 degrees. The transparent substrate BP
1 and the transparent electrode Et1 (for example, ITO), those having spectral transmission characteristics capable of transmitting the wavelength band of optical information to be imaged are used. A metal material having an electromagnetic shielding effect is used as the electrode Et2.

A recording operation is performed under the above configuration. In a state where the switch SW is turned on and a predetermined voltage is applied from the power source E between the transparent electrode Et1 and the electrode Et2, the photoconductive layer member PC described above
Recording corresponding to the optical image of the object O focused on L is performed on the recording layer member CML of the main information recording medium RM. That is, after the light flux from the object O passes through the optical shutter PS via the imaging lens TL, the transparent electrode Et
1 and enters the photoconductive layer member PCL to form an image, the electrical resistance value of the photoconductive layer member PCL changes depending on the amount of light that is incident on it and forms an image, and the photoconductive layer member PC
The electrical resistance value of each part of L is changed in accordance with the amount of light of each part of the object.

Even when the photoconductive layer member PCL described above is provided on the write head WH, or even when the photoconductive layer member PCL is provided on the main information recording medium RM, the photoconductive layer member PCL is When electromagnetic radiation having information to be recorded is applied, the electric resistance value of each part of the photoconductive layer member PCL corresponds to the amount of electromagnetic radiation having the information to be recorded. Similarly, the surface of the photoconductive layer member PCL on which the transparent electrode Et1 is not provided has a charge amount distribution according to the change in the electric resistance value of each part of the photoconductive layer member PCL. As a result, an electric field corresponding to the charge amount distribution (charge image) generated in the photoconductive layer member PCL is applied to the member disposed opposite to the photoconductive layer member PCL.

In the case of a recording mode in which a charge image is recorded on the main information recording medium RM, if a gap exists between the photoconductive layer member PCL and the recording member, the recording member Formation of a charge image on a member is done by electric discharge, and in the recording system shown in FIG. A charge image is formed by the recording layer member CM in the recording system shown in FIG.
A charge image is formed on the charge retention layer member used as L by discharge. (D) In the main information recording medium RM used in the illustrated recording system, a charge retention layer member is used as a recording layer member CML, and recording is performed as a charge image on the recording layer member CML. Except for the case, like the main information recording medium RM used in the recording system shown in FIGS. In the main information recording medium RM, the light modulating material layer member, to which the electric field generated by the charge image due to the information to be recorded as described above is applied, emits light by applying a voltage. Since it is made of materials whose optical properties such as scattering state, birefringence state, and optical rotation state change, the optical properties change depending on the applied electric field, and the intensity distribution of the applied electric field changes. is stored as a form of change in optical properties,
Information is recorded in the recording manner described above. The above is an explanation of the configuration of the main information recording medium RM and the configuration of the recording system for this recording medium.

FIG. 2 shows an example of the configuration of a recording system used when recording a plurality of pieces of information on the recording medium M described in FIG. 1A. In the figure, RM is the main information recording medium and WH is the write head. In the recording systems shown in these figures, electromagnetic radiation corresponding to the main information to be recorded, such as image information, is given, the recording operation as explained in (A) to (D) of FIG. Recording is done.

In the recording system shown in FIG. 2, the light from the object O is applied to the three-color separation optical system CSA after passing through the imaging lens TL and the optical shutter PS. An optical image of each color separated into three colors is displayed on the photoconductive layer member PCL in the writing head WH.
It is arranged so that the image is formed on the image. The imaging plane of the optical image formed by the green light of the object formed on the photoconductive layer member PCL in the writing head WH as described above, the imaging surface of the optical image formed by the red light of the object, and the imaging surface of the optical image formed by the object's blue light. The imaging plane of the optical image is formed in the photoconductive layer member PCL of the write head WH so as to be juxtaposed adjacent to each other with a guard band in between. Then, image information for each color is recorded on the main information recording medium RM, as shown by the R, G, and B frames in the figure. Note that the main information recording medium RM and the write head WH are configured to move relatively in the x and y directions to record image information on a plurality of sheets.

The reading of image information from the recorded main information recording medium RM in the recording system described above with reference to FIGS. 2 and 3 (A) to (D) is as follows: In the case where the recording layer member CML is a light modulating material layer member configured using a scattering type light modulating material, a visible image can be immediately created by simply irradiating the recording area of the image information with readout light. Can be reproduced. If the recording layer member CML in the recorded main information recording medium RM is a light modulating material layer member configured using a birefringent type or optically active type light modulating material, the recorded main information recording medium RM
A visually visible image can be immediately reproduced by inputting linearly polarized light as readout light into the image information recording area and passing the light emitted from the recorded main information recording medium RM through an analyzer. Note that even if a readout light with an area that includes the entire recording area of the image information to be read out is used, or a readout light with a narrow luminous flux is used, the readout light can be used. The recording area of the image information to be read may be scanned in a predetermined scanning manner, and the emitted read light may be photoelectrically converted and used as an image signal.

Further, in the case where the recording layer member CML in the recorded main information recording medium RM is constructed using a charge image holding layer member, for example, an electrostatic detection means (
For example, the recorded information may be read using an optical reading head constructed using a light modulating material (for example, see Japanese Patent Application Laid-Open No. 1-210871), or an optical reading head constructed using a light modulating material (for example,
-8756)) can be used to read recorded information.

On the other hand, sub-information to be recorded, such as audio information, is converted into a digital signal and then transferred to the board MC.
The signal is inputted to the memory (RAM) (not shown in FIG. 2) in the integrated circuit module ICM through the terminal group TM of , and is recorded as a digital signal. In FIG. 2, an electrical signal containing audio information generated from an audio signal generator 1 such as a microphone is amplified by an amplifier 2, converted to a digital signal by an analog-to-digital converter 3, and then sent to a terminal group TM of a board MC. It is supplied to a certain area of the memory in the substrate MC so as to be circulated through the substrate MC. The memory circulates and stores audio information data of a certain length on the time axis based on the write pulse and address information given from the control circuit (control pulse generation circuit) 4 and address generation circuit 5. On the other hand, when the memory in the integrated circuit module ICM is supplied with read pulses and address information from the control circuit 4 and the address generation circuit 5, the audio information data stored in the memory is read out and the digital-to-analog converter 6
The digital-to-analog converter 6 outputs audio information. The output audio signal is amplified by an amplifier 7 and then outputted by a speaker 8 as an acoustic signal. The control circuit 4 and the address generation circuit 5 are configured to set upper addresses in the memory for recording and reproducing audio information corresponding to the selected image information for the plurality of images. ing.

Finally, main information (image information) and sub information (
The entire operation of recording and reproducing audio information) will be explained. During recording, when the shutter 9 is pressed, the optical shutter PS is opened by the recording pulses CTL1 and CTL2 from the control circuit 4, the voltage shutter (switch) SW is closed, and the image information of the object O is transferred to the main information recording medium RM. recorded in At the same time, the control circuit 4 and the address generation circuit 5 transmit, for example, the sound that goes back several seconds from the time when the shutter 9 is pressed, to the integrated circuit module (memory) ICM as sound information.
recorded in During reproduction, the image information is reproduced from the main information recording medium RM according to the principle already detailed, and the selected and
Audio information corresponding to the reproduced image information is read out from the integrated circuit module (memory) ICM and reproduced as audio.

[0023] Although any information may be used as the main information and sub-information to be recorded, in the embodiments described in this specification, the main information is image information, The case where the sub information is audio information has been described. Index information and search information may be recorded as sub information. Furthermore, if this recording medium M is used as a prepaid card,
Sub information records money management information, sales information, etc.
The balance or the like may be recorded so as to be visible as the main information.

As described in detail above, the recording medium M allows efficient recording and reproduction of two-dimensional information such as image information and multiple information such as time-series information such as audio information. The recording/reproducing device can also be constructed with a simple device.

Furthermore, if the main information recording medium RM is laminated as the recording medium M on the surface of the substrate MC in which the integrated circuit module ICM is embedded, there is no need to provide a separate substrate to support the main information recording medium RM, and the structure can be made thinner. It becomes an information recording medium.

Furthermore, if the main information recording medium RM and the integrated circuit module ICM are integrally formed as the recording medium M by dividing the main information recording area MR and the sub information recording area SR on the card surface, it can be made thinner. becomes.

Furthermore, as the recording medium M, the main information recording medium RM and the integrated circuit module ICM are divided on the card surface, and the integrated circuit module ICM is formed integrally so that it is located at the peripheral part on the card surface. For example, even if this recording medium M is placed in a pocket or the like, unnecessary tension will mainly be applied to the main information recording medium RM on the card surface, and will not be applied to the integrated circuit module ICM located at the periphery of the card surface. Therefore, damage to the integrated circuit module ICM is prevented.

Furthermore, in the plural information recording medium M, since the electrode Et2 of the main information recording medium RM functions as a shield plate, malfunction of the integrated circuit module (memory) ICM is prevented.

Further, as shown in FIGS. 3A and 3D, the main information recording medium RM is connected to the substrate MC and the recording layer member CM.
If the structure is such that the main information recording medium RM is stacked with the substrate MC, the recording layer member CML, and the photoconductive layer member PC, as shown in FIG.
If L is stacked, the recording device can be simplified.

[0030]

Effects of the Invention As detailed above, according to the recording medium of multiple information according to the present invention, multiple information such as two-dimensional information such as image information and time series information such as audio information can be efficiently recorded.・Can be played back, and the recording/playback device can be configured with a simple one.

[Brief explanation of the drawing]

FIGS. 1A and 1B are diagrams showing an embodiment of a plurality of information recording medium according to the present invention, and are side views schematically showing the same.

FIG. 2 is a configuration diagram of a recording system used when recording a plurality of pieces of information on a recording medium for a plurality of pieces of information.

FIGS. 3A to 3D are diagrams illustrating various main information recording media and their recording systems.

[Explanation of symbols]

1 Audio signal generation device 2 Amplifier 3 Analog-to-digital converter 4 Control circuit 5 Address generation circuit 6 Digital-to-analog converter 7 Amplifier 8 Speaker 9 Shutter M Recording medium RM Main information recording medium MC Substrate MR Main information recording area SR Sub-information recording Area TM Address/data bus terminal group Et1 Transparent electrode Et2 Electrode ICM Integrated circuit module CML Recording layer member PCL of information recording medium Photoconductive layer member

Claims (5)

[Claims] 1. A main information recording medium that records main information corresponding to a charge image obtained by a photoelectric conversion means that converts electromagnetic radiation having information to be recorded into a charge image;
1. A plurality of information recording medium comprising an integrated circuit module for recording sub-information, the main information recording medium and the integrated circuit module being integrated. 2. A main information recording medium that records main information corresponding to a charge image obtained by a photoelectric conversion means that converts electromagnetic radiation having information to be recorded into a charge image;
1. A plurality of information recording medium comprising an integrated circuit module for recording sub-information, the main information recording medium being laminated on a substrate surface in which the integrated circuit module is embedded. 3. A main information recording medium that records main information corresponding to a charge image obtained by a photoelectric conversion means that converts electromagnetic radiation having information to be recorded into a charge image;
1. A plurality of information recording medium comprising an integrated circuit module for recording sub-information, the main information recording medium and the integrated circuit module being integrally formed by dividing the main information recording medium and the integrated circuit module on a card surface. 4. A main information recording medium that records main information corresponding to a charge image obtained by a photoelectric conversion means that converts electromagnetic radiation having information to be recorded into a charge image;
an integrated circuit module for recording sub-information, the main information recording medium and the integrated circuit module are divided on the card surface, and integrated so that the integrated circuit module is located at the periphery of the card surface. A recording medium for multiple pieces of information, characterized in that: 5. A main information recording medium that records main information corresponding to a charge image obtained by a photoelectric conversion means that converts electromagnetic radiation having information to be recorded into a charge image;
1. A plurality of information recording medium comprising an integrated circuit module for recording sub-information, the main information recording medium being integrally formed with electrodes so as to shield the integrated circuit module.