DE2911615A1 - AUTOMATIC PLAYER AND REPLACEMENT FOR TAPE CASSETTE - Google Patents

Description

el, - Rl.-Ur. 1892/79

Description of the invention

1 shows an embodiment of the playback and changing device according to the invention with a magazine for 32 Cassettes shown. The cassettes are in 4 rows one above the other and in 8 columns next to each other archived. A gripper mechanism, which will be described in more detail later, removes the one for the next Playback process provided cassette to the archive open on the back and leads it to a playback device · The playback device is located in the lower part of the magazine cabinet marked 1. The gripper mechanism is able to play a second cassette from the archive while it is being played similar cassette to a rewinding device, in which it is simultaneously with the playback process the first-mentioned cassette is rewound to the beginning of the tape or rewound to any point on the tape can be. The right side of the control cabinet is used to operate and monitor the device and does not need to be explained in more detail here.

In the puncture model of FIG. 2, a lift truck 5 with one attached to it is attached to two vertical columns 3, 4 Trolley 6 arranged. The lift truck can be moved in the vertical direction with the help of electric motors Trolley 6 on corresponding guideways of the lift truck 5 with the help of an electric motor in a horizontal position Direction. The electric motors for driving are each advantageously located in the fixed parts of the Device and drive the working

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medium on. In Fig. 2 there is still a belt transmission from a lower belt pulley 7 to a higher one lying belt pulley 8 visible, the belt pulley 8 drives a drive shaft firmly connected to it, which interacts with the playback mechanism in a manner to be described later.

In the detailed representation in Fig. 3 it can be seen that the trolley 6 with the aid of several rollers 10, 11, 12 on corresponding guide pillars 13? 14 · of the pallet truck is movably mounted. The toothed belt 15 transmits the torque of the motor 17 arranged in the lift truck on the trolley 6 and causes its movement in the horizontal direction. The trolley 6 carries on its |

lower end of a Teleskopzanp; e 20, whose jaws 21, 22 $? be opened and closed with the aid of a drive motor 23 and a left-hand and right-hand spindle ^! ' can. By means of an electric motor (not visible), the telescopic pliers can be moved in the direction perpendicular to the plane of the drawing and thus remove a cassette located between the jaws 21, 22 from the cassette archive and bring it to the playback station or vice versa. The motors used to drive the lift truck, the trolley and the telescopic tongs are advantageously stepper motors which, when digitally controlled, enable an exact reproduction of the control command.

For playing the cassetted magnetic tapes, a device can be used as in the older one Application P 28 07 272 is described. The cassette movements and derived from a main shaft there Band movements are in the one at issue here

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Exchange and playback device with the help of the drive wheel 8 connected drive shaft realized. In Fig. 4- the arrangement of the gears is in plan view an intermittently working and self-locking transmission shown. Fig. 5 shows the entire Anbrieb in perspective, the Figures 6 and 7 show the interaction of the drive and driven wheels during the loading process and unloading the player.

8 shows an electrical block diagram of a device according to the invention, in which three playback devices 31 »32, 33 are provided. The playback stations will be

controlled by a control unit 34-.

The manipulator 35 is also connected to this control unit connected to the transport of the cassettes to the playback devices. A keyboard is also connected with a display device 36, provided with the Help the required commands are entered and the respective operating status can be displayed.

To play a given television program a corresponding sequence is established with the aid of the keyboard 36 entered, the cassettes are sequentially from the archive to one of the playback stations 31 »32, transported, these are switched to playback mode according to the entered time sequence, the resulting Video signals are amplified in the playback amplifiers 37, 38, 39 via an output switch

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a so-called video processor 41, which comprises circuit arrangement ( for compensating for timing errors and for compensating for signal dropouts. From this video processor, the signals can be fed to the output 42 of the device.

Just like preprogrammed playback, the device according to the invention can also be used for recording from video signals. For this purpose, the video signals to be recorded are supplied at 43 and via an input switch 44 for the individual playback stations, which then work in the recording mode, supplied. The device according to the invention also makes it possible to play signals from one of the cassettes and to record on one or two others. This is done one of the playback stations switched to playback, the signal via the corresponding playback amplifier led to the output switch. In the video processor the signal is corrected and then fed to a further input 46 of the input switch 45.

The device according to the invention experiences an expansion of the operating possibilities by adding a Image memory 47. This image memory 47 is usually designed as a digital memory and can record a television image. The frame buffer 47 is over another output switch 45 with the output of the video processor 41 and the outputs of the playback amplifiers 37 »30» 39 connected. The output of the image collector 47 is as well as the output of the video processor 41 connected to a switching device 48, with the help of which either the signal of the video processor or the

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Output signal of the image memory can be fed to output 42. In addition, all possible output signals of the individual components are connected to a crossbar 49, the output of which is connected to a monitoring device [Ί0.

With the help of the image memory, the operational possibilities of the device according to the invention have been expanded as follows: While the signals of the one cassette, for example DO of <^; or playback device 31, played back and routed via the video processor 41 and the switching device 48 to the output and then, for example, to the transmitter, the following cassette has already been inserted into the playback station 32, for example the starting position, the first image of the cassette located in the playback station 32 is written into the image memory via the output switch 45. By switching the crossbar 49 accordingly, this image is made visible with the aid of the monitoring device 50, so that the first image of the subsequent cassette is finally visible while the contents of the cassette in the playback station 31 are being sent. It is also possible, with the aid of the image memory, to replay a predetermined scene from one cassette into another cassette in such a way that this can be used as a still image for a predetermined time without the use of an image memory.

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A time code generator 51 generates in known manner signals for recording on one of the longitudinal tracks of magnetic tapes, which are common in the television tape technology today.

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Claims (1)

• a · · Rl.-No. 1892/79 March 23, 1979 ϊΈ / PLI / Klm / Hö ROBERT BOSCH GMBH, 7OOO Stuttgart 1 Expectations Automatic tape cassette player and changer, characterized by the arrangement of the tape cassettes in a planar matrix. 2. Automatic playback and changing device according to claim 1, characterized by a gripper mechanism for random access to any tape cartridge in the matrix. 3. Automatic player and changing device according to claim 1 or 2, characterized by the arrangement several playback devices in a plane that is essentially the same as the matrix, 4. Automatic player and changing device according to one of claims 1 to 3 *, characterized in that the Gripper mechanism is movable in three mutually perpendicular planes. 5. Automatic playback - and changing device according to one of claims 1 to 4-, characterized in that - 2 030040/0311 - 2 - Rl.-No. 1892/79 that the gripper mechanism consists essentially of a lifting frame that can be moved by a motor in the X-direction, on which a trolley is mounted so as to be longitudinally displaceable in the Y-direction and can be driven by a motor, and that a pincer mechanism in the trolley can be displaced in the Z-direction and Motor-driven mounted Ir, t and that the gripper tongs can be moved apart and towards each other by motor. 6. Automatic player according to one of the claims 1 to 5, characterized by an intermittently acting gear for chronologically closely successive ones Moving a main shaft and a lifting table for receiving the cassette intended for playback. 7. Playback device according to claim 6, characterized in that the main shaft with a playback device according to the earlier patent application P 28 07 272 can be coupled. 8. Automatic playback and changing device for tape cassettes, characterized in that several Playback stations are provided, while inputs for recording the signals can be controlled via an input selector are each equipped with a playback amplifier, the outputs of which have an output selector a video processor - containing Circuits for compensating for timing errors and for compensating for signal dropouts - are connected that - 3-030040/0311 - 3 - Rl.-No. 1892/79 an output of the video processor is also connected to an input of the input selector and that at one Another output of the video processor, the reproduced signals are available. 9. Device according to claim 8, characterized in that that another output selector is available whose output is connected to the input of a picture memory is, the output of which is in turn connected to an input of an input selector and that another Output can optionally be connected to the output of the device with the output of the video processor. 10. Device according to claim 8, characterized in that a monitoring device via a crossbar Can be optionally connected to the outputs of the playback amplifier, the video processor and the image memory is. 11. Device according to claim 8, characterized in that a control unit is provided with a computer which controls the time sequence for different operating states of the system. 030040/0311 Rl.-No. 1892/79 March 23, 1979 FE / PLI / Klm / Hö ROBERT BOSCH GMBH, 7OOO Stuttgart 1 Automatic player and changer for tape cassettes State of the art The invention is based on an automatic playback and changing device for tape cassettes, as it is known, for example, from the German Auslegeschrift 20 36 844 has become. In the known device, the tape cassettes are arranged upright on a turntable Arranged in a star shape and become a playback station after the turntable has been rotated accordingly fed from which it is transferred to the - 2 030040/0311 - 2 - Rl.-No. 1892/79 Turntable are retractable. There are also transport devices known for magnetic tape cassettes, in which the cassettes in the form of one or more endless Rows are attached to conveyor belts and removed at a playback station and after playback has taken place are retractable to their place in the endless row. All devices known to the applicant according to the state of the art have a disadvantage that for the purpose of Removal by hand or by the device's own devices transports the tape cassettes to a specific location must be, with all arranged on the same turntable or the same endless belt Cartridges must be moved with. This process requires moving a large mass and is accordingly time consuming and energy consuming. The known devices also have the disadvantage that the Access to individual tape cartridges is complicated by the fact that there are always a number of cartridges on the Difficulty is legible, - The head is up and therefore the lettering is only below Advantages of the invention The automatic player and changer according to the invention for tape cassettes with the characterizing features of the main claim has the advantage that there is unrestricted manual access to the stored cassettes. Another benefit is to see that the cassettes in the once chosen 030040/0311 .-No. NAC ¹ .- :. r. • · *> I It · · * 1892/79 • »I · + . ·
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- ^ - Rl Arrangement in the front magnet can remain and this results in a system for the operator that is easy to overlook and memorable. The measures listed in the subclaims are advantageous developments and improvements of the automatic player and changer for tape cassettes specified in the main claim possible. It is particularly advantageous that the number of cassettes stored is not subject to narrow limits and that contribution follow-up times can be achieved which are significantly lower than the rewind times for the played Cassette lying. The following are some general considerations for designing an automatic playback and changer for tape cartridges, which are finally reflected in the claims Find. Cassettes with a playing time of 3 or 6 minutes are known from quadruplex technology. The relatively long season of professional BCN cassette allows the use of multi ι cassette machines thinking in program operation. The operational requirements depend largely on the wishes of the users, be it a commercial or non-commercial television station, a production company, news or educational establishment. An expandable, variable system must allow the following uses: - continuous playback, - continuous recording, - parallel recording, - duplication, - fediting, - 4 030040/031 1 2911 ^ 15 - IV - Ul.-Nγ. 1892/79 - Stchtrunp; from Fropjrnmmateri.il, - optional no access to the format stock for messages, Commercials, Editing, Assembling, Slide library with or without accompanying sound, Program preview, Station identifier, Pause filler. The requirements that must be placed on the system result from these possible applications: - possibility to identify the cassette and its contents, - program freedom for program operation, - programmability for production operation, - short series of posts, - manual operability for all possible uses, - Remote controllability. These requirements can be assigned partly to mechanics and partly to electronics. Moving the cartridge to be covered during feeding and drop 'the cassette Weg3 that Eir- and unthreading of the belt and driving on the band starting point each require a certain time, which can be influenced only within limits. The post follow-up time therefore depends essentially on the number of drives and the rewind time for a post. Now cartridges have the advantage over cartridges that they do not have to be rewound before removing them from the drive. So is not the number of links required 030040/0311 - 5 - Rl.-No. 1892/79 I. greater than the number of cassette receiving spaces in a multi-channel machine, so the rewinding time to be disregarded. This consideration also applies when in one or more cassettes Contributions with an innrer snake duration expire. During this Playing time, cassettes that have already been placed can be reactivated for rewinding. That means: The number of drives determines the shortest contribution follow-up time. If one continues to consider that quick editing is only possible with at least two slave machines, so it makes sense as Basic equipment of a multi-cassette machine offers a version with two drives, which however for three drives and can be easily retrofitted in the field. For two drives the result is then minimum post follow times of about 12 s, for three drives of about 7 s.Of course, this only applies to ff for several short articles in a row. Is a | Short article between two. longer included, | this can of course be shorter than 7 s. |] The relationships between the time sequence are shown in FIG. 9. The functions "Select cassette", "Insert cassette" and "Place cassette" are assigned to the magazine, all others are assigned to the drives. The critical path of this diagram is formed by the functions "Record" and "Playback", because the line running there must not be interrupted by pauses. The loading of the three unloaded drives is relatively quick, because as soon as the first cartridge is inserted, the cartridge for the next drive can already be selected. If your drives to load new to a post, the cassette Wätylvorgang can only start after the previous - 6-030040/0311 r. FOLLOWED JLIGHT - 6 - Rl.-No. 1892/79 Cassette is in place. This determines the minimum time per contribution if there are several short contributions in a row follow. Continuous operation is possible when the total time of three consecutive contributions is greater than 21 s. Because of the many advantages and not least because of the high operational reliability the execution with three drives will therefore be the rule. That the drives of the portable version of a B-format recorder suitable for cassettes also come in one Multi-cassette machines can be used is a notable operational and maintenance advantage. Since no consideration is given here to the power, space and weight restrictions of the portable machine is to be taken, all features of a modern studio machine such as slow motion, jogging, Frame advance and high search speeds can also be achieved with it. drawing Exemplary embodiments of the invention are shown in the drawing and in the description below explained in more detail. Show it: Fig. 1 is a perspective view of the inventive automatic playback and Tape cartridge changer; 2 shows a functional model of the mechanical part of the player according to FIG. 1; FIG. 3 shows a detail of the functional model according to FIG. 2; Fig. 4 an intermittently working self-locking gear for temporal successive Moving a drive shaft and a lift table; - 7-030040/031 1 ■ t I t t I Il 111 Γ. CiOHT • · - 7 - St. 1892/79 5 shows the drive of the transmission in perspective Depiction; 6 shows the flow diagram of the transmission according to FIG. 4 during loading; 7 shows the flow diagram of the transmission according to FIG. 4 during unloading; 8 shows an electrical block diagram of an inventive device Facility; Fig. 9 is a timing diagram of the insertion and the removal process for three drives. 030040/0311