DE4113547A1 - ELECTRONIC SINGLE IMAGE CAMERA AND MAGNETIC DISK - Google Patents

Description

The invention relates to an electronic single-image camera, into a magnetic disk for image recording can be used.

Electronic still cameras have become very popular, since the picture taken with them immediately after the Recording can already be viewed. Another reason for the popularity of the electronic still camera consists in the fact that a magnetic chip is used as the recording medium used, which are easy to handle can. For example, if a captured image is on an in existing magnetic disk recorded in the camera , this can also be done if the memory is partially unused removed from the camera and into a playback Direction can be used to the picture just taken consider.

The magnetic disk usually has 52 tracks, and Images or sound signals are recorded on the 1st to 50th track  draws. The 52nd track is a director's track, it can be used for Record a code by which an image with a Sound signal is combined. There is no In on the 51st track formation recorded.

However, such an electronic still camera can only Operations such as focal length adjustment and exposure control Execution that are predetermined. Therefore, the Users do not change these operations to a desired one Realize admission surgery.

The object of the invention is therefore an elek tronic single image camera to indicate the different ope rations can run freely and a simple Mechanism contains.

According to the invention, a mag Net storage disk provided in an electronic Single-image camera is to be used and traces for storage of data as well as a storage mechanism for storing Contains control data with which a photographic operation the camera is controlled. The control mechanism is on contain at least one of the tracks.

The invention further relates to a magnetic storage disk Means for connecting them to the electronic individual image camera and at least one track for storing tax with which the photographic operation of the electro African still camera is carried out.

According to the invention, a magnetic storage disk is used for Store control data with which a photographic Operation of the electronic still camera controlled can be.  

The electronic still camera contains a reading and a control mechanism. The reading mechanism reads tax data from the magnetic disk inserted into the camera te. The control mechanism controls the photographic opera tion of the electronic still camera according to the Tax data.

The magnetic storage disk therefore has several tracks for storage chern of data and is characterized in that data for Control a photographic operation on at least one of the tracks are stored.

According to the electronic single-image camera can be designed to have a disk take-up mechanism, a reading mechanism, a discrimination mechanism and includes a control mechanism. A magnetic disk is to be inserted into the plate receiving mechanism, the reading mechanism reads data from the magnetic disk, the Differentiation mechanism determines whether the read data is tax data or other data, and the control mechanism controls a photographic opera tion of the camera according to the control data.

The invention will now be described with reference to the drawing explained. In it show:

Fig. 1 is a block diagram of a control circuit for a first embodiment of an electro-African still camera,

Fig. 2 disk is a schematic representation of a magnet,

Fig. 3 shows the diagram of a recording program,

Fig. 4 is a schematic representation of photographic control data,

Fig. 5 shows the flow chart of a first example of the preparation of a photographing operation,

Fig. 6 shows the flowchart of a second example of the preparation of a photographing operation,

Fig. 7 is a block diagram of the control circuit of a second embodiment of an electronic still camera rule,

Fig. 8 shows the flow chart of a third example of the preparation of a photographing operation,

Fig. 9 shows the flow chart of a fourth example of the preparation of a photographing operation,

Fig. 10 shows the flow chart of a fifth example of the preparation of a photographing operation,

Fig. 11 shows the block diagram of the control circuit of a third embodiment of an electronic still camera rule,

Fig. 12 is a schematic representation of a Audiosig Nals on a conventional disk,

Fig. 13 is a schematic representation of a Steuerco's and

Fig. 14 is a schematic representation of photographic control data, which are recorded a control code for an audio signal in the form.

Fig. 1 shows the control circuit of a first embodiment example of an electronic still camera, Fig. 2 shows a magnetic disk which is to be inserted into this camera.

A system controller 11 is a normal microcomputer that controls the entire electronic still camera. The system controller 11 includes a central processing unit (CPU), a read only memory (ROM) and a random access memory (RAM). It is connected to various operating switches 12 Be. In a photographic operation, the image of an object is generated on a CCD element 15 (Charge Coupled Device) as a solid-state image carrier via an aperture and a lens 14 . The CCD element 15 is connected to an image processor 17 via an imaging circuit 16 . The imaging circuit 16 and the image processor 17 are connected to and are controlled by the system controller 11 . An aperture control circuit 13 is also connected to the system controller 11 and is controlled by this according to information obtained from a light measuring device, not shown, who the.

An image generated on the CCD 15 is input to the image processor 17 through the imaging circuit 16 . In the image processor 17 , the input image signal is divided into color difference signals and a luminance signal. The two color difference signals (RY, BY) are alternately arranged at 1H (horizontal scanning period). The image processor 17 is also connected to an image output terminal 18 , and the captured image can be viewed by connecting a display device (not shown) to the image output terminal 18 .

A white balance sensor 21 is connected to the system controller 11 via a white balance processor 22 in order to ensure correct color reproduction of the recorded image.

The disk drive device contains a magnetic head 31 , a head driver 32 for controlling the magnetic head 31 , a spindle motor 33 for rotating a magnetic storage disk D, a motor driver circuit 34 for controlling the spindle motor 33 and a pulse generator coil 35 for time evaluation of the rotation of the magnetic storage disk D. The pulse generator coil 35 is connected to the motor driver 34 , and this and the head driver 32 are connected to the system controller 11 .

The luminance signal and the two color difference signals contained in the image signal are frequency modulated, respectively. ID data such as recording data are modulated in phase difference / phase jump (DPSK modulation). The DPSK-modulated signals corresponding to ID data are multiplex recorded on one and the same track. For this purpose, a frequency modulation circuit 41 and a frequency demodulation circuit 42 are connected to the image processor 17 , and further a DPSK modulation circuit 47 and a DPSK demodulation circuit 49 are connected to the system controller 11 . The frequency modulation circuit 41 is connected to the magnetic head 31 via a head amplifier 43 and a switch 44 . The frequency demodulation circuit 42 is connected to the magnetic head 31 via a head amplifier 45 and the switch 44 . The DPSK modulation circuit 47 is connected between the frequency modulation circuit 41 and the head amplifier 43 . The DPSK demodulation circuit 49 is connected between the frequency demodulation circuit 42 and the head amplifier 45 via a low-pass filter 48 .

The switch 44 is optionally switched to the frequency modulation circuit 41 or the frequency demodulation circuit 42 , for which purpose it is controlled by the system controller 11 . The switch 44 connects the head amplifier 43 of the frequency demodulation circuit 41 to the magnetic head 31 when the image data is to be recorded on the magnetic disk D, the image data being frequency modulated, and ID data such as recording data are DPSK modulated and recorded on the magnetic disk D. On the other hand, when an image is to be reproduced from the magnetic disk D, the switch 44 connects the head amplifier 45 of the frequency demodulating circuit 42 to the magnetic button 31 . Therefore, the image recorded on the magnetic disk D is frequency-demodulated and input to the image processor 17 , whereby it can be viewed with a display device connected to the image output terminal 18 . Photographic data are DPSK demodulated and input into the system controller 11 , whereby they can be reproduced together with the image.

In this embodiment, as will be described below, the photographic control data including an f-number and a shutter speed are stored in a director's track of the magnetic disk D. A data reading circuit 46 for reading the photographic control data is connected between the frequency demodulation circuit 42 and the head amplifier 45 . The data reading circuit 46 is also connected to the system controller 11 , which analyzes the control data, thereby controlling a recording process of the camera.

Furthermore, a display device 51 is connected to the system controller 11 , which displays the respective operating state of the camera.

Fig. 2 shows a magnetic disk D. This is like a 5 cm magnetic disk, as is commonly used for electronic still cameras, and has 52 tracks. The 1st to 50th track D 2 , calculated from the outer circumference of the magnetic disk D, are data tracks for recording image data, audio data and ID data such as recording data. The 52nd track D 1 is a director's track on which a director's signal is recorded. No signal is recorded on the 51st track.

Since the modulation bands of the image data and the audio data are different, this data is on different Tracks recorded. The director signal is used for combining the image data with corresponding audio data if image and Sound must be played together.

In addition to an area for recording various information, the director track D 1 has a user area that the user can freely use. In this exemplary embodiment, photographic control data for controlling a recording process are stored in the user area.

Fig. 3 shows a program diagram as an example of photographic control data. These define a relationship between an f-number and a shutter speed with an exposure value (EV) as a parameter. This relationship is shown with a solid line S 1 . A program diagram shown with a dashed line B1 is stored in a ROM of the system controller 11 as basic photographic control data. In this embodiment, although the exposure value EV, the f number and the shutter speed are included in a table, an equation for deriving the f number and the shutter speed depending on the exposure value EV can also be stored on the magnetic disk.

Fig. 4 shows a state of the photographic control data as it is stored in the director's track. This control data contains a different arrangement of the exposure value EV, the f number and the shutter speed. A point on the solid line S 1 in Fig. 3 is each defined by a set of these data indicating the exposure value EV, the f-number and the shutter speed value. Information about a photographic operation, such as B. shutter speed priority, at the beginning or at the end of the data shown in FIG . B. stored as a bit.

Fig. 5 shows the flowchart of an operation of the electronic still camera. In this embodiment, the basic photographic control data is previously stored in the RAM of the system controller 11 .

In step 81 , a magnetic disk is inserted into the electronic still camera, and in step 82 , the data of the director's track is read. Then, in step 83, depending on the data read in step 82 , it is determined whether photographic control data is stored in the director's track. In the following, a magnetic disk with photographic control data stored in a director's track is referred to as a data disk. A common magnetic disk, on which no photographic control data is stored, is called a normal disk. In step 83 it is therefore determined whether a data disk is inserted in the disk drive.

If it is a data disk, steps 84 to 87 are carried out. First photographic fish control data are deleted 11 ge in a RAM of the system controller in step 84, and then 85 photographic control in step data on the directors track of the magnetic disk chert vomit, the program diagram that (indicated by the solid line S1 in Fig. 3 data indicated) is written into the RAM of the system control 11 . Step 86 is a photographic waiting state in which a photographic operation is possible in accordance with the control data stored in the RAM, that is, in accordance with the photographic control data stored in the director's track of the magnetic disk. If the shutter button of the camera is actuated in this state, a photographic operation is carried out in accordance with the program shown as a solid line S1 in FIG. 3.

In step 87 it is determined whether the operating switch 12 a of the camera is actuated. This switch 12 a is used to select whether the photographic control data read from the director's track of the magnetic disk or the basic photographic control data previously stored in the ROM of the system control circuit 11 are used as a program diagram for a recording process. If the operating switch 12 a is not actuated, the control returns to step 86 . Therefore, an operating mode is then maintained in which the photographic control data read from the tracking track is used or a freely selectable type of recording is available. If it is determined in step 87 that the operation switch 12 is a betae Untitled, the steps are carried out 92 to 96, where it is changed by the mode so that the data stored previously in the ROM of the system controller 11 photographic basic control data is used, ie there is a basic type of admission.

If it is determined in step 83 that no data disk is inserted in the disk drive, ie there is a normal disk in the camera, steps 91 and the following are carried out. In the context of the system control 11 is normally z. B. a program diagram, as shown by the dashed line B1 in Fig. 3 and which is used as basic control data. Therefore, in step 91, the display device 51 then indicates that the camera is now set so that a recording operation is carried out in accordance with the basic photographic control data, ie, the basic recording operation is maintained.

In step 92 , it is determined whether the photographic control data stored in the ROM of the system controller 11 matches the photographic control data stored in the RAM. If so, control transfers to step 95 , which is a photographic wait state. This enables a photographic operation in accordance with the basic photographic control data just stored in the RAM. If it is determined in step 92 that the photographic control data of the ROM and RAM are different, step 93 is carried out, and the data stored in the RAM is deleted. Then, in step 94, the basic photographic control data of the ROM is written into the RAM. Then, in step 95 , the camera is held in a photographic waiting state in which a photographic operation can be performed with the basic photographic control data that is newly stored in the RAM. If the shutter button is pressed in this state, a photographic operation is carried out according to the diagram, which is shown in Fig. 3 with the dashed line B 1 Darge.

In step 96 it is determined, as in step 87 , whether the operating switch 12 a is actuated or not. If it has not been operated, control returns to step 95 so that there is a shooting mode using the basic photographic control data of the RAM, that is, the basic shooting mode. On the other hand it is determined in step 96 that the operation switch has been operated 12 a, so step are carried out 82 and following, and when a data disk is present in the camera, so the drive mode is switched to select mode. If, in spite of determining in step 96 that the operation switch has been operated 12 a, no data disk in the camera, the user can recognize this state, as in step 91, the basic recording mode is displayed.

In the case of an electronic single-image camera that has no operating switch 12 a, steps 87 and 96 are omitted. In this case, the type of recording is definitely determined by whether the magnetic disk is a data disk or a normal disk. Therefore, all image data recorded on data tracks are recorded according to the same photographic control data.

As described above, this embodiment of an electronic still camera can work with a data plate and a normal plate. If the electronic still camera is only to work with one data plate, the flow chart shown in FIG. 5 consists only of steps 81 , 82 , 84 , 85 and 86 .

In the embodiment described above, can a photographic operation with photographic tax data run on the director's track of magnetic storage disk are recorded. Therefore, the operation can be carried out photographic control data are executed, the compared to the basic control data in the system control ROM are different. This will take different shots types possible. Furthermore, since such photographic data from the Magnetic disk can be obtained, the camera does not have to be provided with a special operating mechanism, so that their construction is very simplified.

Although the photographic tax data for a usual Camera are stored in the control panel ROM, in this embodiment, they are the magnet received disk. The ROM for storing the fotogra Fishing control data therefore does not have to be in the camera are located.

Since this embodiment is further constructed so that the photographic control data from the magnetic disk  must be obtained, only a magnetic disk with tax Data selected according to the object to be Such reception conditions to realize what the operation the camera simplified.

The storage volume of the director's track of the magnetic disk comprises approximately 16 k bytes and is sufficient for storing the photographic control data. The data reading circuit 46 for reading the data from the director's track can be easily implemented with an IC, so that a particularly complicated con struction is not necessary.

In the embodiment described above, a description of the sound recording has been omitted in order to simplify the description of the invention. If sound is to be recorded together with an image, an audio processor is of course still required in the circuit according to FIG. 1.

In the first embodiment described above, the photographic control data is stored in the director's track D 1 . In a further embodiment of the invention, however, the photographic control data such as an f-number and a shutter speed are stored in the data tracks D 2 ( Fig. 2) and information indicating that the magnetic disk D is a data disc containing the photographic control data , are stored on the director's track D 1 . The memory contents of the tracks of the magnetic disk D differ from one another in that the magnetic disk D is a normal disk or a data disk. Accordingly, the circuit components are different. In this embodiment, it is therefore not necessary to determine whether the magnetic disk D is a data disk because only predetermined circuits are actuated in accordance with the type of the playback signal picked up by the magnetic head 31 .

Furthermore, in this exemplary embodiment, several program diagrams of the type shown in FIG. 3 with the solid line S 1 are stored in the data tracks D 2 .

Fig. 6 shows the flow chart for the operation of the camera described above.

In step 101 , a magnetic disk is inserted into the camera, and in step 102 , the data is read from the director's track of the magnetic disk. In step 103 it is determined in accordance with the data read in step 102 whether the magnetic disk is a data disk, ie it is determined whether photographic control data are stored on the magnetic disk. If it is a data disk, step 111 and following are carried out. If it is a normal plate, steps 104 to 109 are carried out.

If a data disk has been inserted and steps 111 and following have been carried out, the program diagram shown by the solid line S 1 in FIG. 3 is stored in the RAM of the system controller 11 . If steps 111 and the following have not been carried out, the program diagram shown with dashed line B1 in FIG. 3 is stored as basic control data. Then, in step 104, the content of the RAM is displayed with the display device 51 .

In step 105 , it is determined whether the photographic control data stored in the ROM of the system controller 11 matches the data stored in the RAM. If so, control transfers to step 106 , which is a photographic wait state. A photographic operation corresponding to control data stored in the RAM is thus possible.

If it is determined in step 105 that the control data stored in the ROM and in the RAM are different, it is determined in step 107 whether the control data currently stored in the RAM should be used for the recording. This is determined by an operation in which the user an operating switch 12 b, for example, accordingly the display with the display device 51 Untitled betae.

If a photographic operation is performed on the control data stored in the RAM, control goes to step 106 . If the operation is not performed on this data, control transfers to step 108 and the data stored in the RAM is deleted. Then, the basic control data of the ROM is written into the RAM in step 109 , and the content of the RAM is displayed in step 110 . Step 106 is a photographic waiting state in which a photographic operation can be performed with the basic control data newly stored in the RAM. In this state, when the shutter button is pressed, a photographic operation is carried out in accordance with the diagram shown by the dashed line B1 in FIG .

If it is determined in step 103 that a data disk is inserted, step 111 and following are carried out. First, it is determined in step 111 which track of the magnetic disk is to be read. The command for this reading is given by the user by pressing the operating switch 12 b. As a result, the photographic control data stored on the driven track is reproduced with the data reading circuit 46 in step 112 , and the control data stored in the RAM of the system controller 11 is deleted. Then, the control data reproduced in step 112 is written into the RAM of the system controller 11 in step 114 .

In step 115 , the content of the control data now stored in the RAM is displayed on the display device 51 . Accordingly, the user can read the photographic control data, he can also determine whether the control data are acceptable, and operate the operation switch 12 b accordingly. If the user determines that the control data is acceptable, the process is finished. If the data is unacceptable, step 111 and following are carried out.

If it is determined in step 111 that no command to read a track of the magnetic disk has been given, steps 121 and later are carried out, whereby the photographic control data is reproduced and it is determined whether the control data is acceptable or not.

In step 121 , a counter t is set to 1. Then, in step 122, the photographic control data stored on the track t is reproduced with the data reading circuit 46 . Steps 123 , 124 and 125 are the same as steps 113 , 114 and 115 . The control data stored in the RAM of the system controller 11 up to this point in time are deleted, and new control data are written in the RAM. The content of the control data written in the RAM is then displayed by the display device 51 . In step 130 , the user determines whether the current control data is acceptable. If this is the case, the process is ended.

If it is determined in step 130 that the current control data is unacceptable, control proceeds to step 131 , in which the counter t is incremented by two. It is then determined in step 132 whether the counter t has a content greater than or equal to 49. If the content is less than 49, steps 122 to 130 are carried out again. The next photographic tax data are reproduced and it is determined whether these tax data are acceptable. The counter t is incremented by 2 in step 131 because the photographic control data is stored on every other track of the magnetic disk.

If it is determined in step 132 that the counter t has a content greater than or equal to 49, the process returns to step 121 so that the counter t is set to 1, and steps 122 to 130 are carried out again.

Thus, after the photographic control data is written into the RAM of the system controller 11 , the user inserts a normal plate into the disk drive and performs a photographic operation in accordance with the selected photographic control data. Then, when he wants to change the photographic control data, the data disk is put back into the disk drive, and the above-described operation is carried out.

As described above, this embodiment is constructed so that a photographic operation can be carried out in accordance with the control data stored on the data tracks of the magnetic disk. Since 25 kinds of photographic control data can be stored on a data disk, for example, a photographic operation can be performed according to control data which are different from the basic control data in the system control ROM. A wide variety of photographic operations can thus be carried out. Furthermore, since the photographic control data is obtained from the magnetic disk, the camera does not need an exclusive operating mechanism for storing the photographic control data. This simplifies the construction of the camera.

Although the photographic control data from the ROM of the Sy stem control can be obtained in a conventional camera, the control data in this embodiment can be from  Magnetic disk can be obtained. Therefore, the ROM must The control data is not saved in the camera be, or a memory area in the ROM for storing the photographic tax data can be omitted.

Fig. 7 shows the control circuit of a second embodiment of the invention.

This embodiment includes an audio processor that is not included in the embodiment of FIG. 1. If the magnetic disk is a normal disk, sound can be recorded along with an image. If it is a data plate, the content of the photographic control data can be reproduced with voice signals.

As shown in FIG. 7, a microphone 61 is connected to an audio signal processor 63 via a microphone amplifier 62 . The audio signal processor 63 is connected to an A / D converter 65 via a switch 64 . Therefore, audio signals pass from the microphone 61 to the A / D converter 65 , and high-frequency components of the audio signals are removed with the audio signal processor 63 and A / D converted. The A / D converter 65 , a digital signal processor 66 , a RAM 67 and a D / A converter 68 are connected via a data bus 69 . The digital signal processor 66 outputs a clock signal to the A / D converter 65 , the RAM 67 and the D / A converter 68 and controls the writing and reading of the RAM 67 . The digital signal processor 66 is connected to an audio signal CPU 71 , which is connected to the system controller 11 . The CPU 71 controls the data input and output for the digital signal processor 66 and the system controller 11 .

The D / A converter 68 is connected to a compressing audio recording processor 72 , which is connected to a frequency modulator 41 via a switch 73 . The switch ter 73 is designed so that the frequency modulator 41 is optionally connected to an image processor 17 or the compressing audio recording processor 72 . The switch 73 is connected to the image processor 17 only for image recording, while it is connected to the audio recording processor 72 only for sound recording. Here, the audio signal from the audio signal processor 63 is fed to the A / D converter 65 and converted into a digital signal. Then this is fed to the RAM 67 , converted into an analog signal by the D / A converter 68 and fed to the compressing audio recording processor. The audio signal is then compressed for a period in which the magnetic disk D makes one revolution (e.g. 1/60 second). Then it is frequency modulated and recorded on a track of the magnetic disk D.

A compressing audio playback processor 74 is arranged between a frequency demodulator 42 and the switch 64 , which is switched with the system controller 11 via the CPU 71 . The switch 64 is connected to the audio signal processor 63 for sound recording and to the compressing audio playback processor 74 for sound reproduction. In the case of sound reproduction, an audio signal recorded on the magnetic disk D is frequency-demodulated and then subjected to a process with the compressing audio reproduction processor 74 which reverses that of the audio recording processor 72 . The audio signal is thus stretched to a predetermined period.

This audio signal is fed through the A / D converter 65 , the RAM 67 and the D / A converter 68 to the audio signal processor 75 , where a high-frequency component of the signal is removed. The audio signal is then amplified to a predetermined level and reproduced with a reproducing device which is connected to the audio signal output terminal 77 .

Fig. 8 shows the flowchart for the operation of the electronic single-image camera with the circuit shown in Fig. 7 device. In this embodiment, the contents that are currently stored in the RAM of the system controller 11 are spoken through a speaker 76 , so that the user can easily decide whether the photographic control data meets his requirements.

In order to obtain this linguistic confirmation of the photographic control data, steps 116 to 118 and 126 to 128 are provided. Steps 116 to 118 correspond to step 115 of the flow chart of FIG. 5, steps 126 to 128 correspond to step 125 of the flow chart of FIG. 5. The operations of the other steps are the same as those of the corresponding steps of FIG. 5, for which reason these other steps do not need to be explained.

In step 116 , data of audio signals corresponding to the photographic control data written in the RAM of the system controller 11 in step 114 is read. In this embodiment, the control data is stored on the odd-numbered tracks of the magnetic disk, and the audio signal data is stored in even-numbered tracks. Furthermore, each audio signal date is stored on a track within and next to the track of the corresponding control data. Therefore, in step 116, audio signal data is read by increasing the track number of the photographic control data by 1.

The audio signal data is A / D converted in step 117 and stored in the RAM 67 of the audio signal processor. In step 118 , an audio display indicating the content of the photographic control data is output through an audio reproducing device connected to the speaker 76 or the audio output port 77 . The user can use this voice output to determine whether the photographic control data meets the requirements, and then, if necessary, can input the required data by actuating a predetermined switch in step 120 .

The operations of steps 126 through 128 are the same as those of steps 116 through 118 . Thus, audio signal data is read in accordance with the photographic control data that was written into the RAM of the system controller 11 in step 124 , this data is then A / D converted and stored in the RAM 67 of the audio signal processor. Thereafter, they are reproduced with the speaker 76 or other reproducing device.

As described above, the photographic control data currently stored in the RAM of the system controller 11 is confirmed in language. Accordingly, the user can easily and accurately confirm the content of the control data and easily determine whether this data meets the requirements or not.

Although in the exemplary embodiment shown in FIG. 7 the audio signal data corresponding to the photographic control data are stored on a data track in addition to a data track for the control data, the invention is not restricted to this. The audio signal data can also be stored on another track. For example, the photographic control data can be stored on the first 25 tracks of the magnetic disk, while the audio signal data are stored on the second 25 tracks. In this case, information about the assignment of the photographic control data to the audio signal data is stored, for example, on the control track or in a control code of an audio signal, which is explained below with reference to FIGS . 12 to 14.

Fig. 9 shows another flowchart of an operation of the electronic still camera. Here, an example of accurately expressing a characteristic is connected to an unillustrated reproduction apparatus, the input terminal 18 to the Bildaus represented photographic control data currently stored in the RAM of the system controller. 11 This allows the user to easily determine whether the photographic control data meets the requirements or not.

Steps 119 and 129 are provided to confirm the control data visually. These correspond to steps 115 and 125 of the flow chart according to FIG. 6. Since the operations of the remaining steps correspond to those of the corresponding steps in FIG. 6, these remaining steps will not be explained any further.

In step 119 , image data corresponding to the photographic control data written in the RAM of the system controller 11 in step 114 are read. This image data shows a typical example of an image recorded with the photographic control data. The image is output to the display device and projected onto the viewing surface thereof, as described above.

As in the example of Fig. 8, the photographic control data is stored on an odd-numbered track of the magnetic disk, and the image data is stored on an even-numbered track. Each image date is saved on a track within and next to a track with the corresponding control data. Therefore, in step 119, the image data of a track are reproduced, the number of which results from increasing the track number of the control data by 1. The user can use this image to determine whether the photographic control data meets the requirements, and in step 120 he can input a "correct" or a "wrong" signal by actuating a predetermined switch.

The operation of step 129 is the same as that of step 119 .

Therefore, in this embodiment, an example of the photographic control data currently stored in the RAM of the system controller 11 is confirmed with an image. Accordingly, the user can accurately recognize the content of the control data and easily determine whether it meets the requirements or not.

The image data according to the photographic control data don't necessarily have to be on a track next to the track of the Tax data can be stored, they can also be on a another track. For example, the photograph tax data on the first 25 tracks of the magnetic chip disk and the image data on the second 25 tracks saves. In this case, information about the Assigning the control data to the image data e.g. B. on one Director's track saved.

Fig. 10 shows another flowchart of an operation of the electronic still camera. In this operation, similar to the operation of Fig. 9, the user can select the photographic control data using an image.

In step 201, it is determined whether a switch 12 c (FIG. 1 or 7) for indexing the track of the magnetic disk in the "on" state. If this is not the case, step 202 is skipped and step 203 is carried out. If the switch ter 12 c has the state "ON", step 202 is carried out and a data track is switched. In step 203 , it is determined whether a playback button 12 d of the camera is in the "ON" state. If this is not the case, the process is ended.

However, if the playback button 12 d is in the "ON" state, steps 204 and following are carried out and the photographic control data are selected.

In step 204 , the image data of a data track selected at this time and reference data are read. This picture shows a typical example of a picture taken with the corresponding photographic control data, and this is recorded in the same manner as that of the normal plate. The image signal is divided into a Luminanzsig signal and color difference signals, frequency modulated and recorded. Further, although ID data such as shooting data is normally DPSK-modulated and multiplexed on a track on which an image is contained, in a data disc of this embodiment, the number of the track on which the photographic control data corresponding to the image is DPSK-modulated and multiplexed are stored as a reference date in a user area in which the data are recorded DPSK-modulated.

In step 205 , the DPSK modulated data is used to determine whether the magnetic disk is a data disk or a normal disk. If it is a normal disk, normal playback is carried out, ie in step 206 an image recorded on the normal disk is displayed with the image area of a playback device. If it is determined in step 205 that a data disk is present, then in step 207 the display device 51 indicates that a photograph can be taken with the photographic control data, and the image read in step 204 is displayed on the display device.

By looking at this image, the user can determine whether the photographic control data requirements entspre chen or not, and then he can in step 208, a loading drive switch 12 b confirm to choose the control data.

If the control data is correct, it is read from the data disk into the RAM of the system controller 11 in step 209 , and the process is ended. After that, a recording operation can be carried out according to the photographic control data.

On the other hand, if it is determined in step 208 that the photographic control data is incorrect, step 209 is skipped and the control data in the RAM of the system controller 22 are not changed. In this case, the user operates the track switch 12 c or 12 d (steps 201 and 202 ), brings the playback key to the "ON" state (step 203 ) and checks the next image (steps 207 and 208 ). The correct photographic control data is selected by repeating this operation.

According to this exemplary embodiment, the same effect results as shown in FIG. 9.

Fig. 11 shows the control circuit of a third embodiment of an electronic still camera according to the invention. This embodiment basically has the same structure as that shown in FIG. 7. The camera is thus equipped with an audio signal processor, the microphone 61 , the microphone amplifier 62 , the audio signal processor 63 , the switch 64 , the A / D converter 65 , the digital signal processor 66 , the RAM 67 , the D / A- Converter 68 which includes CPU 71 for audio signal processing, compressing audio recording processor 72 , switch 73 and compressing audio playback processor 74 . However, this electronic still camera has no data reading circuit 46 . Furthermore, an important difference from the second embodiment is that the photographic control data is stored on the magnetic disk in the form of a control code of an audio signal.

In this embodiment, the photographic control data such as an f number and a shutter speed are stored on the data tracks D 2 ( Fig. 2), and information indicating that the magnetic disk D is a data disk for storing the photographic control data is on the director track D 1 saved.

The photographic tax data is on the magnetic chip cherplatte in the form of a control code of an audio signal recorded. Therefore, the recording of audio data in the following explained before a recording format of the photo graphic control data is described.

Fig. 12 shows the format of an audio signal on a normalplatte, in which a track is divided into four sectors and a signal is recorded in each of these sectors, which begins with a start flag F 1 and ends with an end flag F 2 . A control code C 1 for recording a date and an audio waveform C 2 are recorded immediately after the start flag F 1 . In a sector in which the audio signal C 2 is recorded, the start flag F 1 has a high level shown in FIG. 12 and the end flag F 2 has a low level when an audio signal exists in the next sector. The end flag F 2 is at a high level when the audio signal ends in this sector.

As FIG. 13 shows, the control code C 1 consists of a synchronization code C 3 and data codes C 4 , each consisting of 8 bits. A CRC code C 5 consisting of two signals, each with 8 bits, is also provided. A start bit S is assigned to each code. Nine bytes of data codes C 4 are contained in a control code C 1 . The synchronization code C 3 denotes the start of the control code, and the CRC code C 5 serves to determine an error when reading the control code.

The start flag F 1 has a low level if there is no audio signal C 2 in its sector. The audio signal processor will therefore not evaluate signals that follow such a start flag. This property is used in this exemplary embodiment. The start flag F 1 is set to a low level, and the photographic control data are recorded in the form of the control code behind this start flag. This data is then read with the audio signal processor and fed to the system control.

Fig. 14 schematically shows the control data stored on the magnetic disk in the form of the control code. A sector starts with the start flag F 1 , which has a low level. This sector contains 64 control codes C 1 and ends with the end of flag F 2 . A maximum of four such sectors are provided on a data track.

The photographic control data of Fig. 4 are stored in the data disk in the form of a control code and read with the audio signal processor.

The following is a read operation of the audio signal process sors explained.

First, the reading of the audio signal from a normal plate is described. A control signal that has a time of e.g. B. 5 , 10 or 20 seconds, for which an audio signal is drawn on, is output by the system controller 11 . This control signal is stored in the RAM 67 via the CPU 71 and the digital signal processor 66 . At the same time, an audio signal is output via the audio signal processor 63 and stored in the RAM 67 via the A / D converter 65 . The control signal and the audio signal in the RAM 67 are recorded on the magnetic disk D via the D / A converter 68 , the compressing audio recording processor 72 , the frequency modulator 41 and the amplifier 43 .

When this audio signal is read from the magnetic disk D, the audio signal and the control signal are stored in the RAM 67 through the amplifier 45 , the frequency demodulator 42 , the compressing audio playback processor 74 and the A / D converter 65 . The control signal stored in the RAM 67 is transferred to the RAM of the system controller 11 with the digital signal processor 66 and the CPU 71 . Under the control of the system controller, the audio signal is output from the RAM 67 via the D / A converter 68 and the audio signal processor 75 with the speaker 76 for a time (z. B. 5 seconds), which is determined by the control signal.

The above description relates to the case where the magnetic disk is a normal disk. The start flag F 1 is therefore at a high level. On the other hand, when the magnetic disk is a data disk, the start flag F 1 has a low level. In this case, a signal stored on the data disk is stored in the RAM 67 via the amplifier 45 , the frequency demodulator 42 , the compressing the audio reproduction processor 74 and the A / D converter 65 . The trasmitted photographic control data in the RAM of stemsteuerung Sy 11 via the digital signal processor 66 and the CPU 71 is stored and then analyzed by the system controller 11 from the data disk into the RAM 67th The electronic still camera is thus controlled in accordance with the photographic control data. The RAM 67 , which is an audio signal memory, can also be used to store photographic control data, so that the RAM of the system controller 11 is then unnecessary.

The preparation for a photographic operation with the electronic single-image camera of this exemplary embodiment takes place according to the flow chart according to FIG. 8 or 9. In step 112 , the photographic control data are reproduced with the audio signal processor. The rest of the operation is the same as that of FIGS. 8 and 9.

In this third embodiment, there are diesel ben effects as in the first and second. Furthermore, since photographic control data on the magnetic disk in Form of the control code of an audio signal are recorded, does not need a circuit specifically for reading the photographic Tax data may be provided. This is the structure of the entire control circuit much easier.

As an example of the photographic tax data used in the previous embodiments on the magnetic memory a program diagram was called, that the exposure value EV, the f-number and the shutter speed contains. The invention is not restricted to this. The photographic control data can also be in a program for Run a focal length change. In this case the system control ent ent an adjustment mechanism speaking to the pro obtained from the magnetic disk grams. Furthermore, the control data of the magnetic storage disk It doesn't necessarily control a photographic operation can also use data to perform another control be.

Claims (20)

1. Magnetic disk for an electronic single image camera with a plurality of memory tracks for storing data, characterized in that at least one memory track is designed for storing control data with which a photographic operation of the single image camera can be controlled. 2. Magnetic disk according to claim 1, characterized records that a director's track is provided on the the tax data are stored. 3. Magnetic disk according to claim 1 or 2, marked records at least one data track for storage a video signal and / or an audio signal on which the tax data are stored. 4. Magnetic disk according to claim 3, characterized records that the control data in the form of a control code of an audio signal are stored. 5. Magnetic disk according to one of the preceding Claims, characterized in that a first Da tenspur for storing the control data, a second Data track for storing information about using the control data to be executed and means for Allocation of the tax data to the corresponding informa tion are provided. 6. Magnetic disk according to claim 5, characterized records that information in the second data track are stored in the form of an audio signal.   7. Magnetic disk according to claim 5, characterized records that information in the second data track are stored in the form of a video signal. 8. Magnetic disk according to one of the preceding Claims, characterized in that the tax data to control an exposure process of the electronic single camera can be used. 9. Electronic single-image camera with a magnetic chip disk as a data carrier, characterized by a Device for reading control data from the magnet storage plate and by a device for control a photographic operation according to the read tax data. 10. Single image camera according to claim 9, characterized net that the tax data on a director's track of Mag net storage disk are stored. 11. Single-image camera according to claim 9 or 10, characterized ge indicates that the magnetic disk at least a data track for storing a video signal and / or contains an audio signal on which the tax data are stored. 12. Single image camera according to claim 11, characterized net that the control data on the data track in the form a control code for an audio signal are stored. 13. Single-image camera according to one of claims 9 to 12, characterized in that the magnetic disk a first data track for storing the control data, a second data track for storing information, the one control to be executed with the control data specify and means for assigning the tax data to  each contains information. 14. Single image camera according to claim 13, characterized net that the information on the second track is in the form of an audio signal are stored. 15. Single image camera according to claim 13, characterized net that the information on the second track is in the form of a video signal are stored. 16. Single image camera according to claim 13, characterized by Means for reproducing the information. 17. Single-image camera according to one of claims 9 to 16, characterized by means for storing the on the Magnetic disk stored and read from it tax data. 18. Single-image camera according to one of claims 9 to 17, characterized by means for displaying information which indicate a photographic operation. 19. Single-image camera according to one of claims 9 to 18, characterized in that the tax data for control serve an exposure process. 20. Single-image camera according to one of claims 9 to 19, characterized by means for reading data from the Magnetic disk, by means of determining whether the data read is control data, and by means to control a photographic operation accordingly the tax data read.