EP1466208A1 - System comprising a camera, passive accessory component and a control device therefor - Google PatentsSystem comprising a camera, passive accessory component and a control device therefor
- Publication number
- EP1466208A1 EP1466208A1 EP20030702178 EP03702178A EP1466208A1 EP 1466208 A1 EP1466208 A1 EP 1466208A1 EP 20030702178 EP20030702178 EP 20030702178 EP 03702178 A EP03702178 A EP 03702178A EP 1466208 A1 EP1466208 A1 EP 1466208A1
- Grant status
- Patent type
- Prior art keywords
- storage medium
- accessory component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/232—Devices for controlling television cameras, e.g. remote control; Control of cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in, e.g. mobile phones, computers or vehicles
- H04N5/23203—Remote control signaling for cameras or for parts of camera, e.g. between main body and part of camera
- H04N5/23209—Remote control signaling for cameras or for parts of camera, e.g. between main body and part of camera for interchangeable parts of camera involving control signals based on electric image signals provided by an electronic image sensor
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
System with a camera, passive accessory component and control means therefor
The invention relates to a system therefor with a camera with at least one passive component and camera accessories with a control device.
Furthermore, the invention relates to a passive accessory component for a camera and moreover, a control device for at least one passive accessory component in association with a camera.
In the modern film technique, a variety of accessories used in cameras. The complete active and passive components, which is connected to the achievement of the desired picture with the camera is called camera system. Under Active Interface electrical or electronic components are understood in this context that control, Rege- conversion or exercise visualization tasks of the camera and have an interface for data exchange. Characterized accessory specific data to the control device of a camera system can be transmitted. For this active accessory addresses are:
- drive systems for lenses;
- Smart (equipped with appropriate electronics) controls the camera;
- displays for visualizing data and camera data from assembled components;
- data recorders;
- units for automated functions;
- electric film magazines; and
- electrical Verstellblenden.
Other components which are necessary for the operation of the camera and do not meet the above criteria of active accessory are called passive accessories. These include mechanical, optical and electrical accessories without the ability to communicate with the control electronics of the camera system. At this passive Accessories include, for example:
- Viewfinder systems;
- mechanical film magazines; - Aspect Ratio window;
- mechanical Verstellblenden;
- optical filter systems; and
- batteries or other power supply components.
The term "camera system" a film camera or video camera is understood with its active and passive accessories eg. In many applications, the configuration of a camera during a recording will be constantly changed. When replacing active components which have for the most part on processors, it is prior art to adapt the control device of the camera system of the new configuration and to store settings of the accessories. Be passive accessory components replaced, this can not be recognized by the control device. Therefore, any decision taken accessory specific settings are lost when replacing.
In the film industry the camera systems are mostly owned by rental houses and film productions the required equipment is rented by the production companies and operated by mostly freelance cameramen and camera wizard. Here, extensive electronic equipment (active accessory) and a plurality of passive accessory components for the production of a wide variety of effects used in the field of recording technology. Here, the configuration of the camera system is often changed several times a day. Due to the increasing number of possible functions, the user interface of the camera systems are becoming increasingly complex. However, many users use only a small number of the many possible functions and visualizations.
Each user developed through the use of the equip- ment also a lot of information that he needs to know in the application of a product, but does not want to let you know other users. As an example, one can call observations about the quality of a lens at different applications are here. As a cameraman can establish in the application that a zoom lens with a focal length of 28-60 mm has at the focal length of 40-45 mm in his opinion, quality defects.
It would be desirable for the user of camera systems, to have a technique available to: - Recognize the exchange of passive accessories;
- information on the current accessories rungs- the Steue- and to make display units of a camera system available;
- to update the display of ads on the exchange of Pasiven accessories;
to store information about used passive accessories and reproduce again at a recent use of this accessory -;
easy to store user-specific customizations to the user interface and reproduce at a renewed use of the equipment -;
- to reduce the user interface of a camera system to the required user functionality to enable a clear and easy handling; and
- to store product-specific data and the renewed use of the product information stored automatically display.
It is therefore an object of the invention to provide a system, a passive accessory component and a control means as initially indicated to provide in order to meet the above desires as complete as possible. Here information should in particular not be lost in an exchange of passive accessory components, and it should be also enables individual storage of information available to only the respective operator (cameraman, etc.) are available. Furthermore, an adequate display of information to the respective concerning passive accessory and its operation, especially under user-specific adaptation, possible.
The inventive system of the initially defined kind is characterized in that a contactless storage medium is attached to the passive accessory component, and that the control device is associated with an electronic detection device for communication with the noncontact memory medium. Here, the noncontact memory medium is preferably formed by a per se conventional transponder, and the electronic recording device is a (per se known write and read device although cases are conceivable where a mere writing instrument or a mere reading device as the detection device - When employing fertil already "marked" passive accessory components - is used).
Similarly, the passive accessory component of the invention is characterized by a attached to its contactless storage medium, in particular a known transponder.
The control device according to the invention is according to a further aspect of the invention is characterized by the assignment of an electronic acquisition device for communication with a noncontact memory medium at the passive accessory component. In another aspect, such a control device is characterized by a memory unit having at least one mobile storage medium is provided for storing data specific to the passive accessory component data.
For initial use of a passive accessory component in a camera system of this passive accessory component in the first operation associated with data, in particular in the course of a calibration of a servo drive data obtained, associated - to be stored, and if these passive accessory component then removed and - in the noncontact memory medium at that accessory component is used later again, the data stored in the noncontact memory medium are immediately available again, and they can be recognized with the electronic detection device and will use it accordingly in the control device of the system. The storage medium can of course be attached off directly to the accessory components themselves also to the accessory package, the same function is achieved, ie for example in the case of a lens, the data can be read out from a mounted on a lens case storage medium in the same manner during its installation.
In particular, the contactless storage medium for storing for passive accessory components and / or for the operation is set up specific data. When assignment of a servo or drive motor for the passive accessory component such as a servo motor for a lens, of the passive accessory component are stored preferably from the noncontact memory medium count values of the drive motor in conjunction with the accompanying scale or engraving values. As a result, a visualization of related motor and lens information is also possible at any time. Of course, the invention is applicable not only for lenses, but with any other passive accessory components, as for example, was cited at the outset.
Further, when a control device is provided which is associated with a storage unit with a mobile storage medium, preferably a memory card, to store for the passive accessory components and / or for the operation of specific data, the respective data can be used as personal data on a personal removable media are preferably stored a memory card, and, kept by the person interested in, for example, a cameraman in individual assignment. The mobile storage medium allows, where appropriate, storage of information on those information addition to how it can be stored on the contactless storage medium at the respective passive accessory component. For example, it is conceivable to store (additional) information concerning the quality or special characteristics of certain passive accessory components for personal purposes to be advised immediately to these properties as when using the passive accessory component thereof. Apart from the "personal" in the mobile storage medium stored data can be used for the detection of the respective accessory component and for the setup and operation and replace those that are stored on the accessory component in the transponder.
To view such information and also the information that is read from the noncontact memory medium of the respective passive accessory component, which control device is preferably equipped with a display device, and on this display device, the aforementioned specific information can be displayed on accessory components and their individual properties; besides, also the memory card for storage of this display device or its respective configuration information may be arranged, in particular, information about the configuration of the display device can be stored depending on the concerned just passive accessory component. The display device may further also display the current positions of the respective passive accessory components associated servos or drive motors.
The camera may preferably be a film camera, but it can also, for example, but a camera be formed by a video camera or. Furthermore, also more passive accessory components in an application example in filming, can be provided in which case data regarding all the stored passive accessory components used or read and displayed in the system of course.
The invention will be further explained below with reference to the drawings illustrated preferred embodiments, however, it shall not be restricted. Show it:
Fig.l schematically illustrates a simple example of a conventional camera system with comparable few accessory components in an individual representation;
Fig.2 this camera system in an assembled state;
3 shows in the part drawings a, b and c details in connection with a lens as a passive accessory component, wherein, in a scale ring 3a, 3b in a view of the operation unit in Figure 3c, this operation unit schematically for a KaiibrierungsVorgang are illustrated;
4 shows a camera system with an inventive technique;
5 is a view of a passive accessory component in the form of a lens with an attached transponder;
6 shows schematically the structure of an electronic transponder DERS;
7 shows schematically the interaction of an electronic recording device with such a transponder and the associated application system;
8 shows schematically the construction of a simple mobile memory card;
9 shows the structure of a modified, equipped with a processor memory map;
10 shows the operation during start-up of a camera system with passive accessory component (in this case formed by a lens) in a flowchart;
11 shows schematically in partial figures a and b a possible display of the information thus obtained (11B) in opposition to the current positions of the servo motor (11A); 12 shows in a flow diagram similar to Figure 10 the operation in a changing lenses;
Figure 13 is a schematic view corresponding 11B illustrates the display for the lens now used;
14 shows a similar display representation, but here with a spread lens scale; and Figures 15 and 16 two examples of user-specific display configurations in views corresponding to Figures 11, 13 and 14 respectively.
In Fig.l a simple example of a camera system is shown, where the individual components are shown separated from each other. In detail, a camera 1, a first lens 2, a second lens 3, a servo drive 4 for one axis, specifically for the adjustment of one of the lenses 2, 3, a control unit 5 for the servo drive 4 and a Bedienungsein- are standardized 6 therefor shown. In Fig.2 this camera system is shown in the assembled state, the first lens 2 has been mounted on the camera. 1
Based on this example a per se conventional camera system as shown in Figures 1 to 3, and the operation with the lenses 2, 3 to the introduction of the invention underlying problem will be explained.
For various filming conditions are different lenses, for example, 2, 3, in use, the lenses 2, 3 can also come from different manufacturers. To automation rungs- to achieve control and remote control function that Objektiwerstellung for example, by turning on a scale ring 7, see. 3a, with the aid of an external drive, namely here the servo drive 4. This servo drive 4 is flanged on the scale ring 7 of each lens 2 and 3, respectively, and a pinion 8 of the servo drive 4 whose rotational movements are on the scale ring 7 of the respective lens , for example 2, transmitted more or less without play.
In the present example, for simplicity only one servo drive 4 for the adjustment of "axis" illustrated but may also be a plurality of axes are operated in parallel, of course, for example by using servomotors for the distance adjustment (focus), for the lens aperture setting (Iris), and the focal distance setting (zoom), but other control systems or axles are possible. According to Figure 2 the operating unit 6 is now connected to the control unit 5 in order to forward changes made to the operating unit 6 settings to the control unit. 5 The operation unit 6 is the user interface for controlling the servo drive 4. In this way, the user can specify the simplest case, for example via a rotary potentiometer of the operating unit 6, setpoints the servo drive or -motor fourth It is also known, in such Bedienungseinhei-, ten of servo motors directly camera operations such as start recording, stop a recording etc., to perform, with a therefor not shown in detail in Fig.2 button can be provided on the operation unit. 6
The control unit 5 is on the one hand connected to the camera 1 in order to supply the motors with power and to transmit camera commands which have been input to the operation unit 6 to the camera. 1
On the other hand, the control unit 5 is connected to the servo motor 4 in order to supply it with power and to allow bi-directional data transfer between it and the control unit. 5
Instead of the illustrated therefor in Figure 2 cable connections 9, 10, 11 and radio connections can be provided if required, of course, where the transmission frequencies are generally in the 2.4 GHz or 868 MHz range. A functional difference with regard to the present invention is characterized not given, and in the result of the simplicity, it is further assumed that cable connections.
At start-up of such a per se conventional camera system for example according to Figure 2 is carried out after switching on the camera 1, a calibration of the servo motor 4 (or all servo motors when a plurality of such motors are provided as usual). This calibration procedure is illustrated below with reference to Figure 3. After the calibration-specific data can be marked on the control unit 6 for the respective accessories, such as the lens 2, which can be used with the camera system.
A calibration of the servo motor 4 (or the servo motors) is required, as this servo motor 4 during assembly, when the respective index ring 7 of the lens 2, and 3 (or other driven parts of the accessory components) flanged, generally, the position of the objective scale, does not know the setting of the passive accessory component or this position its control unit is not known. The calibration of the servo motor 4 drives in the example shown, that in the case of the lens 2, the two end stops automatically the scale ring 7, and the positions of the two end stops are stored in the control unit 5 of the servo motor. 4
It should be noted here that only a scale ring 7, is shown for the aperture of the lens 2, in Figure 3 for simplicity, the calibration based on this example of an iris scale will be explained. An iris scale as given by the scale ring 7 according 3a, is object-specific in professional lenses, that these scales are different for different lenses. In the production of lenses, for example 2, measured and the respective scale values are engraved on the scale ring. 7 The motor moves the other hand, usually in the servo motor 4 by sensors (not shown) is detected and passed on to the control unit 5 as a position count. The calibration is now the servo motor 4 drives slowly towards an end stop - adopted towards aperture value "4". Once the servo motor 4 has reached the end stop, the control unit of the left stop is known. Now, the servo-motor 4 moves the right stop, the engine sensors, the number of incremental steps from the left stop the right stop to the control unit 5 to pass (the value of the position counter). For example, arise in the calibration scale of the iris of the lens 2, the following values:
Left stop (corresponds to scale value "4") .... position counter: 0
Right stop (corresponds to scale value "16") ... Position count: 697
From the calibration process, the control unit 5 knows the exact relative position of the scale ring 7 with respect to the end stops. Is the scale ring 7 as shown in Figure 3a to "5.6", the control unit 5, the associated Positionszähl ert (eg "143") are known. However, the engraving is "5.6", the system has no information.
A mechanical abutment to the lens end stops can be avoided by the motor 4 is in position count 1 and 696 is stopped. Since with the use of servo motors, the lens, for example, 2, while the application is mostly from the sensing area of the user, the user requires information about the absolute position of the lens. For this purpose, the engraving values of the lens 2 are previously sketched on the control panel. 6 On the control unit 6, there are two mechanical stops 12, 13 which are typically located about 270 ° from each other. Usually located around the adjusting knob of the operating unit 6, an area where handwritten information can be recorded. This area 14 is highlighted in Figure 3b and does not change its position during movement of the adjustment knob. If the adjustment knob of the operation unit 6 is rotated from the left to the right stop 12 stop 13, the iris scale of value "4" is moved to the value "16". These values are recorded by hand in the designated area 14, see. 3 c. Now the user with visual control of the objective has to move out of the other engraving values with the aid of Bedienungseihheit 6 and are listed in the designated area 14 of the operation unit. 6 In Figure 3c, the operation unit 6 is shown after this operation.
After this step, the camera system is fully operational.
Now, if an objective change is carried out, for example, from the lens 2 to the lens 3, so has the nunmehrige lens scale (eg iris scale) perform other engraving values and end stops than the first lens 2. The user has to the whole process of the presets for the servo motors again to have an operational camera system. Prepare by the lens 3, the lens 2 is used, all settings have to be carried out again, so that the system can be used. This is where the invention comes in, which generally avoids the loss of already acquired data, such as the above calibration data, when changing back and change of lenses or of passive accessory components.
A corresponding example of a camera system according to the invention is shown in Figure 4, wherein the existing also in the system according to Figure 2 components are designated by like reference numerals and are not explained again here. In addition to this, it is provided that the respective passive accessory, in this case, for example, to the lenses 2 and 3, for example directly (or its packaging) each comprise a contactless storage medium 15, preferably in the form of a transponder 15 (referred to for simplicity only 15 reference is made to the transponder), is attached, see FIG. also Figure 5, where a direct attachment on the lens body is illustrated. Furthermore, the control unit is associated with an electronic detection device 16 5, which is preferably is a write and read device, and wirelessly with the transponder 15 - see antenna 17 - communicates. Further, the control means 5 and control unit is assigned to a display device 18 6, and, moreover, is a storage unit 19 is provided to store in a non-volatile storage medium, namely in particular a memory card specific data, as described below will be explained in more detail. The components 5, 6, 16, 18 and 19 together thus form a total "control means" 20, while the corresponding control device 20 is formed only by the components 5 and 6 in the prior art camera system according to Fig.2.
The contactless storage medium, that the transponder 15 is staying at the respective passive accessory, here mounted on the lens 2 or 3, so that it is possible, up associated data DA to store or read out from what happens without contact. The detection device 16, that is, a write and read device in the preferred embodiment, the control unit 5 writes or operation unit 6 obtained data into the transponder 15, and it can then read the data back from the transponder 15 °. This writing and reading unit 16 is actively connected to the control unit 5 of the camera system. The display device 18 is used to display the information and data stored in non-volatile memory medium further current dynamic information of the camera system as a whole. In this case, an allocation of application-specific dynamic data (for example, the Positionszählwerten described above) to the stored data possible.
The scope of this technique includes all passive accessory components that are used in a camera system. The operation of the automatic adaptation of the control and display system of a camera 1, depending on the configuration of the camera system is again described by way of lenses 2, 3 by way of example. The units 5, 15, 16, 18, 19, 6 are shown in Figure 4 each for itself. However, they can also be integrated in a housing or in the camera body into one unit. In particular, it is useful when using different passive accessory to connect the read-write unit 16 for the transponder 15 to the camera body and to be electrically connected directly to the control unit of the camera. 1 For reasons of clarity and since in this particular example, only one transponder 15 for lenses 2, 3 is used, in Figure 4, the reading and writing unit 16 is shown directly connected to the control unit 5 of the motors. 4 Since all active accessory components can exchange data with each other in a modern camera system that is functionally no difference where the read and write unit 16 is connected to the transponder 15th Regardless of the electrical connection of the read and write unit 16, this unit (eg also on the packaging) has 16 course be mounted in the radio range of the possible transponder positions.
The contactless storage medium (transponder 15) is per se conventional and is based, for example, (also called "day" or chip card) in an RFID system (RFID Radio Frequency Identification), which consists of two parts, namely the attached to the respective object transponder ( here, for simplicity, without implying limitations are to be connected, below the sake throughout, the term "transponder" is used), and (the RFID detection apparatus read-write device) for the transponder 15, referred to herein below, without limitation, as a detection device sixteenth The data memory forming transponder 15 consists in the simplest case of a microchip and an antenna. In Figure 6, the basic structure of such a conventional transponder 15 is shown, wherein a digital control unit is provided as a central element 21, which cooperates with an EEPROM memory 22nd Furthermore, an anti-collision logic 23, and an access controller 24 are assigned to control not only the memory access itself, but also the access to the transponder 15 within a response range, where multiple transponders are present. This makes it possible to target individual transponders 15 within the response range.
As an interface between the digital control unit 21 and an antenna 25 is an analog unit 26 is provided, which also contains a capacitor not shown in detail for storing electrical energy.
The antenna 25 may be realized as a wire or wire loop. Also dipole antennas are in use. If the antenna 25 is formed as a loop, so it extends mostly around the microchip (components 21 to 24 and 26).
Due to the EEPROM memory 22 of the transponder 15 is not only a read-only memory, but it can also be described from the outside. There currently are transponder with a memory depth of 10 kbit in the market. In newer systems, the memory 22 can be segmented advantage, that it can be made available to certain users various memory blocks. Each storage area can be secured against irreversible new overwriting. EEPROM memory are usually some 100,000 times writable. In the memory 22 and an identification number may be (with consecutive serial number, manufacturer code) and interrogated be.
The transponder 15 has no contact to the outside. usually it does not have its own power supply and is outside a certain distance from the capture device 16 - the response range - completely passive. Within the response range of the transponder 15 is activated. The energy needed to operate the transponder 15 is such as to transfer the data without contact by means of electromagnetic waves.
Transponder 15 are relatively insensitive to external influences, such as dirt or moisture. You need to communicate with the capture device 16 no optical sight and no specific orientation. Depending on the manufacturer have transponders dimensions in the millimeter or centimeter range. The thickness of the microchip is less than 1 mm.
The detection device 16, which can be both read and write device includes - s. Fig.7 - typically a high-frequency module 27 with antenna, a digital control unit 28 and an interface 29 to further automation devices 30th
The connection between the detection unit 16 and the transponder 15 without contact by means of electromagnetic waves. Depending on the manufacturer and technology RFID systems operate in different frequency bands. Usual frequencies are the ranges around 134 kHz, 13.56 MHz (ISO standard 15693 or 14443) or other nationally approved ISM frequencies (Industrial / Scientifical / Medical). The data rate during the data transmission (s. Double-headed arrow 31) is different according to the manufacturer and standard. In the standard ISO 15693 data rates of 26.48 kbit / s are possible; ISO 14443 enables data rates of 106 kbit / s. The data transmission is secured by CRC (cyclic redundancy check). As a modulation method, amplitude modulation (ASK) or phase modulation used (PSK).
In the communication of the detection device 16 having the transponder 15 has two operating states are distinguished, namely, the read operation and the write or programming operation. Both operating conditions are started with the charging cycle of the capacitor on the induced voltage by electromagnetic waves located at the transponder 15 °. This energy transfer is indicated in Figure 7 by the arrow 32nd The transponder 15 detects the end of the charging cycle and transmits the read mode its data. This is done by interference of the output signal of the detection device 16. The transponder 15 thus does not transmit itself but loaded with its base load the radiated field. This additional power makes removal in a retroactive over the field amplitude modulation of the output signal noticeable and can be evaluated by the detection unit 16 after appropriate amplification and demodulation.
After loading the transponder can also be brought into the programming mode 15th The data transmitted from sensing device 16 are stored in the transponder 15 in the EEPROM memory 22nd Typically, the stored data for review to the detection device 16 are defined by the transponder retour 15th
Depending on response ranges can be on the used frequencies, antennas and field strengths of a few centimeters to a meter or realize it. To achieve systems according to ISO 15693 in the 13.56 MHz range with an antenna on the reader / writer 10 of 65 cm diameter, 4 W output power and a credit card-sized transponder 15 has a range of 1 meter.
The interface between the detection device 16 and the application system 30 follows an international standard, such as RS 232 or RS 485. In the application, the memory can be visualized or given, see. above the operating unit 6 and the display device 18. The control unit 28 in the detection device 16 is typically a digital signal processor, which produces the connection between the analog unit 27 and the external application system 30 and construction controls the connection setup to the transponder 15 °.
Below are now still on the basis of 8 and 9 as examples of mobile storage media memory cards in the form of smart cards or the like. are explained.
As a smart card is called an electronic data store, optionally with additional computing power (microprocessor board), which is usually built into a plastic casing in the manner of a credit card. In recent years, other storage media which work electronically similar to a smart card came on the market. Such storage devices are PCMCIA, Compact Flash, Mini PCI card format or similar standardized or company-specified housing formats, memory stick, available.
The smart card or similar storage media are supplied via a galvanic connection to the detection device 16 from electrical power and a clock. Data communication is also handled by the contacts.
In the smart card, the contacts are as Kontaktierungsflä- chen at the top of the plastic card shaped see. and the right part of the representations in Figure 8 and 9. The detection device 16 is connected via contact springs with the card connected. In a chip card, the data transfer between the detection device 16 and the card itself via a bidirectional serial interface (I / O port) occurs. One of the main benefits of the smart card is that the data stored on it from undesired read access and manipulation can be protected. In other similar storage media parallel data communication dominated with the detection device. These storage media are generally not protected from undesired read access, but it is the data manipulation easily possible by the wide variety of capture devices on the contrary.
One can distinguish the smart card or similar portable storage media between two basic types of cards namely - mere memory cards that are mainly used for data storage, and - Microprocessor cards, where in addition to data storage is the possibility of a program application.
These two types are described using the example of the smart card.
When the memory card 33 according to Figure 8 34 (state machine) is a memory 35 via a sequential logic - usually implemented as EEPROM - accessed. This also simple security algorithms can be implemented. The (address and security) - logic 34 is a read only memory 36 associated with; further (and correspondingly in Figure 9) as the usual contacts clock (CLK), ground (GND), power supply (VCC), I / O port (I / O), etc. indicated in Figure 8, which purpose is can eliminate the need for further explanation.
Microprocessor cards, as the card 33 'of Figure 9, included in contrast to the mere memory card, a microprocessor 37 with a segmented memory (ROM, RAM, and EEPROM segment) is in communication. In Figure 9, the schematic structure can be seen. The mask-programmed ROM 38 includes a higher-level program code (an operating system) for the microprocessor 37 and is applied during the chip fabrication. The contents of the ROM 38 can not be overwritten. In the EEPROM 39 of the chip are the application data and the application-specific code. But this memory code can be read or written only under control of the operating system. The RAM 40 is the temporary memory of the microprocessor 37. The data stored in RAM 40 data is lost after the power is turned off. The application-specific program components or data can be handled extremely flexible.
As such a memory card 33 or processor memory card 33 '(or similar portable storage medium) cooperates with the storage unit 19 with a card slot on the display device 18 for storing and reading data. This storage medium 33, 33 'will be hereinafter referred to for simplicity memory card, wherein the above-indicated various embodiments are excluded. hence is referred to herein a portable storage medium that can be assigned to each user in person to hold that user specifically related data stored. When using a camera system, for example in accordance with Figure 4, such a personal memory card 33, 33 'into the slot (storage unit 19) in accordance with the flow chart of Figure 10 in the introduction according to step 41 inserted, after which the camera 1 is turned on in step 42 , This is followed by a number of automated processes, as is indicated in Figure 10 by a heavily bordered block 43rd In detail, a calibration process, block 44, for the servo motor 4 (or the servo motors) is preliminarily carried out, after which the identification numbers of the transponder within range are read in step 15 45th After identifying the correct transponder 15 46 Lens data from the transponder 15 are transferred to the control unit or 'transferred in accordance with step 47 associated data from the memory card 33 or 33 in the display device 18 in accordance with step. This data transfer at 46, 47 carried out for example in parallel, and then the display is updated in step 48th Following this self-running operations can be used with the camera system as indicated at block 49 in Fig.10.
The sequence shown can be modified by different users questions. In the present example it is assumed that the data in the following table 1 in the transponder 15 communicate by prior use, or an external service is available.
The personal memory card 33 or 33 'should always remain at the user even when the camera system is again returned to the lend-house, and it is inserted at the start of the application (step 41) in the appropriate slot of the memory unit 19th In addition to product-specific information different configurations of the user interface are stored here. In Table 2, the contents used for the present example two different memory cards (for different users X, Y) are given: Table 2
After switching on the camera (step 42 in Figure 10) follows the calibration procedure 44; in the present system there is no absolute position of the scale rings (7 in Figure 3) of the control device is available. Since the lens scales can be rotated in the off state, the current position of the motor 4 through the calibration process must also be determined with this system. After the calibration procedure resulting in the iris scale of the lens 2 as in the example according to Figure 3 the following values:
Left stop position counter: 0 Full right position counter: 697
The reading of the identification number (step 45 in Figure 10) may also be performed before the calibration process 44; in a known manner, the identification numbers of all transponders located within range are read here. In this example, the lens 2 mounted on the transponder 15 is read out. From this point, the information about the currently used equipment to display and control devices is known, and it can transfer the lens data from the transponder 15 and the associated data from the portable storage card 33, 33 'carried (this process 46, 47 may also be carried out before the calibration process 44 - then finding an end stop is theoretically only necessary). After reading the ID number, step 45 in Figure 10, the identification number belonging to this data from the available storage media are read by the display and control devices. In this example, the following data are available for the user X are available:
- product-specific data from the transponder 15:
- Informative content that will be displayed directly on the display (manufacturer, type, etc.)
- Assignment of Positionszählwerten of engines to scale values; in Table 1, this is represented as follows: (Iris scale lens 2)
L (0) .... linker stop at position counter value 0; 4 (0) .... aperture 4 at position counter value 0; 5.6 (143) ... aperture value 5.6 at position counter value 143; (Mutatis mutandis to the other values, and other scales are shown).
- User-specific data from the memory card 33 or 33 ': Here are the information about this product - identified by the already read identification number - read. This may include, for example
- stored to product informative content; in Table 2 the information is, for example, to the identification number of the lens 2 (0000001), "optical problems focal length of 28" stored;
- For more product - interesting for the user - scale values, it has stored in previous applications; in Table 2, a further scale value of 6.5 for example, is stored;
- Display information about this product; in Table 2 is stored, for example, that the X display of the iris and focus scale desires a user when product lens 2 - the zoom scale will therefore not be displayed;
- assignments of hand control units; in Table 2 is stored, for example, that the user wishes to default adjust the iris scale with the hand control unit in this product.
After reading all the stored information, the display can be brought to the desired level in accordance with step 48 in Fig.10.
The 11A shows the internal structure of the iris indication. The display area for the used here Iris scale is divided into 697 parts. On this scale are formed at the Positionszählwerten (0, 143, 206, 327, 512, 697) tick marks displayed. As values in addition to the marking lines are the corresponding values (4, 5.6, 8, 11, 16) displayed from the storage media. Through this display, the user has an image of the objective scale that is available for him. The 11B shows the visible screen for user X 50th
Dynamic always the current position count (actual value; for example, "327") from the servo motor 4 during operation provided. This actual value is in this example (see Fig. 11A) indicated by an arrow 51. In the case of the observed iris scale this actual value is currently indicated by the arrow 51 in the value of the 327th Through the technique presented here an assignment of this dynamic application-specific value is ( "327") to the relevant to the user display value ( "8") is possible. Thus, for the user of the current iris value ( "8") can be seen, see. Fig. 11b.
Since all steps are automated after turning on the camera system, the user receives a short time after switching on the system a functional camera system. It can be integrated into the process, of course, user queries to allow the user greater flexibility; for example, could take a query whether
- the data stored in transponder 15 scale values
- or individual, 'present on the memory card 33 or 33 scale values to the lens 2 and 3
- or both scales are to be displayed in different colors. But also the type of start-up procedure - whether such or similar queries should be made - can be specified individually on the personal memory card 33 or 33 '.
According to this example are various configurations and thereby resulting display variations will now be explained. It is assumed for example that the user X changes from the lens 2 to the lens. 3 The corresponding steps are shown in Fig.12.
If the lens is changed (step 52 in Figure 12), it is then normally the transponder 15 of the lens 2 and the transponder 15 outside of the lens 3 is within the functional range of the read and write device 16. If over time a plurality of transponders 15 of the the same type (for example, during storage of the lenses are not used beside the camera) in the range of the read and write device 16, it must be cleared by a user request, which lens is to be used for further display.
After recognizing the new transponder (step 53) are analogously carried out the steps 44-48 of FIGURE 10, s. 12 shows; thereof a renewed description may not be necessary. In the personal memory card 33 or 33 'of the user X (s. Table 2) for the lens 3, the display
- the iris scale
- lens data (in this case, were given as an example manufacturers and focal length) and
- camera data (in this case, as example, the actual and desired running speed of the Ka-era FPS - indicated - and the current value of the film counter footage) set. With these the data read from the transponder 15 of the lens 3, and data (s. Table 1) is obtained without further user activity, illustrated in Figure 13 display 50.
If accepted, the user operates mainly in the iris region with aperture values between 1.8 and 4, the user now has (a definable user interface) can:
represent increases this interest to him in the area of the display 50 -
- incorporate new numerical values in this area in the display 50 and, if necessary
- the new numbers
- specific product to be stored on the transponder 15 and / or
- 33 'to save on his personal memory card 33.
If the user in this case, two new values 2.1 (61) and 3.2 (240), so it stores this in the transponder 15, and it sets the display scale of the spread determined in his personal memory card 33; so that the display shown in Figure 14 50. The relevant changed data on the storage media results are shown in Table 3 below.
Personal memory card 33
In the spread lens scale of 14 shows only the Positionszählwerte 88-376 are displayed. Parallel to this, can be the allowable adjustment range of the adjusting knob of the operation unit 6 (here for the iris), as well to this range 1.8- 4 limit. If this range is spread to the mechanically possible adjustment (270 °), one can increase the positioning accuracy of this operation unit. 6
If accepted then another user Y uses the same equipment the same hire as the first user X, they will serve different productions, and it is the applications different. Through the technique presented here the equipment from the commissioning is configured according to his needs. Since the user Y his personal memory card used 33 or 33 '(configuration see Table 2), resulting after the startup of the system, which is adapted to the user Y needs a completely different indication. In Figure 15 and 16 both displays are shown in comparison. In this case the sake of completeness it should be mentioned that is used in accordance with Figure 15 in the operation unit 6 of the adjusting knob for adjusting the iris "axis" and in Figure 16 for adjusting the focus-the "axis".
The data stored on the Positionszählwerten numerical values can be selected as desired. The decisive factor is always what the user wants to see. want as for example, could use a Meterob ectively a user, but "Feet" values in its display to display. Because it can store any corresponding values for the Positionszählwerten, this is no problem with this technique. Likewise, any mathematical operations can be displayed on the display 50th For example, if the required data is in the storage media 15 and / or 33 or 33 'is stored, calculations performed on the current depth of field and the values are displayed on the display 50th
In addition to the detailed in this example, use of this identification and storage system for lenses, there are numerous other applications with other passive accessories. As examples can be mentioned:
- Transponder to batteries:
Stored information: type of battery, capacitance, threshold voltage.
With different batteries, the voltage values are different, in which energy can not be provided sufficiently. For example, lithium ion batteries have different values than Niekel-cadmium batteries. Depending on the threshold voltage of the display for "low battery" (low battery voltage) can be easily adjusted by using the new technology.
- Transponder on optical filter systems: Stored information: type of the filtering system
On display units of the camera system of the currently used type of filter system can be displayed and processed in a data recording device.
- Transponder on mechanical film magazines: Stored information: type of the magazine, maximum allowable speed.
The permitted maximum running speed of the camera system can be adapted depending on the mounted magazine and displayed.
The described technique, it is possible to provide data on any passive accessory components to the control and visualization system of a camera. It is possible, developed in the application information is also available on the passive accessory components themselves, as well as an associated user memory to back up. Moreover, the data previous applications can be displayed depending on the accessories being used and / or depending on the user.
Priority Applications (3)
|Application Number||Priority Date||Filing Date||Title|
|PCT/AT2003/000011 WO2003060607A1 (en)||2002-01-18||2003-01-14||System comprising a camera, passive accessory component and a control device therefor|
|Publication Number||Publication Date|
|EP1466208A1 true true EP1466208A1 (en)||2004-10-13|
Family Applications (1)
|Application Number||Title||Priority Date||Filing Date|
|EP20030702178 Withdrawn EP1466208A1 (en)||2002-01-18||2003-01-14||System comprising a camera, passive accessory component and a control device therefor|
Country Status (3)
|US (1)||US20050140816A1 (en)|
|EP (1)||EP1466208A1 (en)|
|WO (1)||WO2003060607A1 (en)|
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