DE1111427B - Procedure and device for selecting stored data - Google Patents

Description

The invention relates to a method and a device for storing data.

It is an object of the invention to select individual units of information in a storage system in which a large amount of data is stored.

Another object of the invention is to provide an information storage device in which a Arrangement is provided to a main address, which comprises a group of data, and then subsequently Feel for sub-addresses that relate to individual units of the group in order to create a to select the desired memory location.

It is already known to use punched cards in two consecutive sensing points in punched card machines to be scanned one after the other. With such a device it is possible at the first sensing of the Card to determine whether there are any data of interest on the card, and then at of the second sensing in detail. The card must be used for both readings be fully sensed and must always go through both devices.

There has also been proposed a large capacity data storage device having a stack magnetizable sheets and means for selecting a desired sheet from the stack and means for sensing or recording in a desired location of the selected one Has sheet which is attached to a continuously rotating drum. Each sheet contains one Number of recording tracks for the data, each of which has multiple groups of the recorded Absorbs information. A marking signal is assigned to each information group, so that a specific Storage area z. B. can be referred to as group 3 of track 6. To on this storage area To make a reading or recording, the head associated with track 6 becomes first is selected, and then the group marker signals are from a predetermined starting point counted on. When three group marking signals have been counted, the desired memory group area 3 is located in the Reading or recording position. With this arrangement, the desired storage area must through a track and group number can be identified. This type of labeling is not always advantageous.

Another method is to record an identification number together with each piece of information in the information track. The procedure and establishment
to select saved data

Applicant:

Dr. Gerhard Dirks,

Frankfurt / M., Mörfeider Landstr. 44

Claimed priority:
Great Britain November 1, 1957

Dr. Gerhard Dirks, Frankfurt / M.,
has been named as the inventor

Identification numbers and individual information are arranged in the tracks so that the identification number is sampled immediately prior to sensing the associated information. This identification number is compared with the identification number of the information sought, which is e.g. stored in a register. If the Comparison shows that the two identification numbers match, a signal is generated that triggers the reading of the associated individual information.

The recording of an identification number with each piece of information has the advantage that the Information can be recorded in any order. However, it may be necessary may be that all information recorded on multiple sheets of paper must be read before the desired information is found. When the number of items of information recorded is very is large, too much time must be taken into account for each individual reading.

In many cases it is possible to put the individual pieces of information in groups of related ones Share information. For example, if the memory cards relate to material invoices, then the material invoices for each type of machine can be recorded on a separate sheet will. The records on the sheet can then be divided into groups, which are the subgroups that make up the entire machine, each group of Records the part numbers of the various

109 648/193

Contains parts that form the sub-group of the machine.

According to the invention, there is an apparatus for processing data and a recording medium Main identification information as well as a group of perceptible secondary identification information entered in relation to others on other areas of the same sheet or other sheets of recorded information, etc., and the machine initially only displays the Identifying information scanning sensing devices, which only when a match is found with the desired identification causes a further scanning of the secondary identification information, but in the event of a mismatch starts scanning the next sheet.

The invention will now be described in greater detail on the basis of exemplary embodiments in conjunction with the drawings described.

Fig. 1 shows a portion of a record carrier and the arrangement of the information and Identification signals in parallel tracks;

Fig. 2 shows a similar section of a record carrier, but in which the identification signals and the information signals are perpendicular to each other;

Fig. 3 shows schematically an arrangement for feeding sheets of a stack to a filling station, to sense records of Figure 1;

Fig. 4 shows the circuit for sensing and controlling a device according to Figs. 3, and

FIG. 5 shows a modification of the sensing device of FIG. 3 for recording media according to FIG.

Fig. 3 shows an arrangement for selecting a single sheet 1 from a stack of magnetizable Scroll and feed the selected sheet to a first sensing stage, while during This movement a sheet identification can be sensed, as well as for forwarding the sheet to a further sensing device and / or to return the sheet to the stack.

The blades 1 are preferably made of a material that has a certain rigidity, however is flexible. For example, the sheets can be made from a cardboard box, such as that used for punch cards is used, or made of a plastic or a non-magnetic film. The sheet is completely or partially covered with a magnetizable layer 3, the uncovered parts in addition be used, data in another form, e.g. B. printed data to record.

The sheets contain the mega-recorded data in the arrangement of Figs. For example, if one sheet relates to machine no. 7 and a reference to subgroup no. 3 is required for a listing of the part numbers of this subgroup, while the other sheets refer to other machine numbers and their subgroups, then the sheets of the stack need to be related not in that order. The first hand selected does not have to be the correct hand either; the subgroups may be listed in numerical order for ease of compilation, or in some other order as the machine changes. The sheets are first removed only as far as is necessary for the sensing of the area that is assigned to the sheet number. 1 and 2 show the arrangement of the signals on the leaves, parts corresponding to one another being provided with the same reference numerals. The sheet 1 has lugs 2 to move it in the direction of the arrow A. These approaches can be reinforced with metal. The sheet has a magnetizable layer 3 in the area outlined by dashed lines. The three tracks 4, 5 and 6 contain group marks, clock marks or time marks and identification signals. A binary coded decimal representation is chosen as an example, in which the priority values are 1, 2, 4 and 8 in sequence. A time stamp is provided in track 5 for every possible digit in the code. At the end of each group there is a group pulse in track 5, which indicates the end of the group. The sheet identification is in the first group 4 A. The further identification of the subgroup follows in the areas 4 B, 4 C etc. The last group is identified by 4 Z. In a separate area, the information tracks are arranged parallel to the identification tracks (FIG. 1) or at right angles thereto (FIG. 2). The information track 7 B and the associated clock track 8 B contains the information which belongs to the group area 4 β, and similarly the tracks 9C and IOC belong to the group area 4C; the information in track 6 shows the value 7 (4, 2.1) in track 4 A, the value 6 (4, 2) in track 4 B and the value 2 in track 4C. Similarly, a recording is indicated in track IB with the values 1 and 5 and in track 9C with the values 4 and 1. At the end of tracks 4 and 5, a group mark in track 4 and a time mark in track 5 are simultaneously sensed to indicate that the end of the recording (FIG. 1) has been reached. This symbol is used to initiate the reading by the devices provided for sensing the information.

The vertical information tracks of Fig. 2 are sensed upward in the direction of arrow B , the arrangement of the recording heads otherwise being similar to Fig. 1, except that there is no combined marking signal at the end.

Fig. 3 shows a stack of sheets 66 containing the data of Fig. 1 and loosely between two carriers

69 A and 69 B are held. The beams can be raised and lowered by lead screws 70 and 71 which pass through threaded openings in the beams. The general arrangement is similar to that according to Fig. 1 of the German patent application D 25410 IX / 42 m

70 can be rotated with a friction clutch 74 hooves which is driven by a motor 72. The direction of rotation of the motor 72 is through a switch 68 determines, when actuated, the connections of the motor to a power source 84 or 85 can be reversed. The spindle 70 carries a lever 76 which normally has an armature 77 touched. The armature 77 can be released with the aid of an electromagnet 78. The electromagnet can be actuated by closing a contact 73. The lever 76, the armature 77 and the electromagnet 78 together form a control which allows one rotation at a time. The spindle 70 carries also a sprocket 100, which is driven by a chain 99 with a similar sprocket on the spindle 71 connected is.

5 6

A motor 91 drives the rollers 87 and 88 via a signal controlled, and this controlled signal a clutch arrangement 92, which is fed via lever 95 and two comparison circuits. The Ver-96 and an electromagnet 97 each for a common circuit are preferably released in over-rotation. The rollers 87 and 88 mood with the specifications of the British patent drive conveyor belts 82 and 83, which are executed via ent- 5 writing 738 294 and contain a sliding speaking guide rollers, so that a part register 22 in which the desired sheet number of each belt parallel is given to both sides of the, as well as a dynamic comparison stack of sheets 66 runs. In the normal idle circuit21, for example in the form of a flip-flop switching position of the belts, there is an attachment 90 in each device, which transmits the identification signals to the one belt between the attachments2. The lugs 2 can be reinforced by metal for comparison with the contents of the slide and come with the registers. The contents of the sliding lugs 90 of the belts 82 and 83 engaged so registers are incrementally shifted and re-fed by the clock pulses of the amplifier that the sheet to which the lugs are aligned. On is taken. When the electromagnet 97 is energized at the end of a group (in the example after four clocks, so that the motor 91 the rollers 87 and 88 15 pulses) the amplifier 17 delivers a group rotates counterclockwise, then move the end pulse, which carries out an identity check in the Verdie lugs 90 move forward so that it interferes with the circuit 21. If the identity lugs 2 at the front edge of the sheet is present in Ein, a positive pulse will come to ignition, which is emitted opposite the upper piece of a Tyratron 23, the tape. This moves the sheet to the front of the stack if the sheet is not the sheet you are looking for. The sheet is preferably moved forward onto a table 60 when checked by the comparison circuit. When a group pulse arrives, no pulse.A random sheet of the stack can be selected and delivered to the Tyratron tube 23, but the group is delayed by shifting the stack as a whole so that the delay unit 25 is delayed so that the desired sheet with its lugs 2 25 pulse ignites the Tyratron 24 and energizes an electro-magnetic relay 26 aligned with the lugs 90 of the straps 82 and 83, the contacts of which are the coupling. This alignment is carried out by actuating the solenoid 97 and the reversing switch 68 on the electromagnet 78, so that the motor 72 actuates the spins, so that the sheet is moved back. When your 70 and 71 are in the desired direction - the leaf is the leaf you are looking for, the Tyratron ignites and can drift. With each revolution of the spindles 70, 30, 23 and actuates a relay 27, which moves the magnets 97 and 71, the stack is moved by a distance which turns on, so that the sheet is moved forward equal to the distance between adjacent sheets. By igniting the tyratron 23, that of the stack becomes. It can be seen that the contact lowers the anode voltage at the Tyratron 24 so that it can be controlled by a stepping mechanism or a similar device at the subsequent input of the step switch, so that by 35 delay circuit 25 delayed group supply of pulses to a contact the impulse cannot ignite. By responding to the stepping mechanism a first approximation of that of the Tyratron 23, the gate circuit 28 is also the number of the first sheet that opens, so that a comparison of subsequent sheets can be achieved. The contact 73 identification data is automatically operated with the help of comparison so often until the desired sheet 40 circuits 29 and 30 is possible, which comes into the position in which it is selected shift register 29 the identification number of the should; afterwards a forwarding is saved after each subgroup. Done upon receipt of the second sensing process. Group signal from group 4 B can

Each time a sheet is removed from the stack, tron 31 ignites, if this is the desired group. When all groups including the first group identifying the pivotable separation lever 101 are sensed in engagement with the sheet, a solenoid 103 is actuated to bring a stack. A protruding part 102 of the are the signals through an amplifier 17 a lever 101 is thereby fed between the sheets un- counter, the z. B. is designed as a ten-stage tube counter from the Dekatron directly above the selected sheet. This counter pushed. A similar separator lever (not shown) 50 is used to control the selection of the sensing heads which are provided on the other side of the stack. The cathodes 33 ₀ , 3S ₁ so that the front edge of the upper part of the cause no selection. The remaining cathodes are stacks resting on the lugs 102 and a gap is connected in such a way that it opens one of the seven shown, into which the selected sheet can be inserted again by closing the contacts 33 ₂ A to 33 _g A heads. A reversal will thereby actuate 55. When the desired group is reached, the drive for the belts 82 and 83 is triggered, the Tyratron 31 ignites so that the goal scarf is reversed. device 32 blocked and the count at this value

The first engagement of the clutch that will be terminated by the. The sensing heads are in their mount Electromagnet 97 is controlled, causes a one 64 arranged so that when the last group 4 Z umpteenth turn which is sufficient to straighten the sheet as far 60 through the sensing head 14 in the socket 65 to move so that the identification track is read under the heads of the socket 64 at-sensing heads 14, 15 and 16 of the sensing station 65 close to the beginning of the information and got. The signals supplied by these heads are located on clock tracks. The circuit is only for that heads 34 are represented by amplifiers 17, 18, 19 (FIG. 4), but the sound strength is corresponding. The head 16 senses the identification signal 65 lines for reading the associated clock tracks from, the head 15 the clock signal and the head 14 the provided.

End of group signal. The identification signals are The last group contains a unique combination Gate circuit 20 supplied by the clocking nation, namely the meeting of a group

marking with a time marker. These signals are supplied to the coincidence circuit 35 to control the switch 35 ^ 4. At the end of the reading, a mechanically operated switch 36 is operated by a projection 81 on the strap 82 to trip the reversing switch 68. By a not shown holding relay 37, the contacts 37 A are opened, which switch off the Tyratrons 23, 24 and 31, so that they are deleted during the return movement of the sheet. Contact 375 interrupts the counter circuit so that the counter returns to zero. Another contact 37 C of the relay prevents further reading of the information. Further contacts 37 D and 37 E bring the clutch magnet 97 to respond and actuate the reversing switch 68. As soon as the starting position is almost reached, a contact 38 is temporarily closed mechanically by the projection 81, so that a relay 39 is actuated, which the holding circuit of the Relay 37 opens so that a further working cycle is prepared as soon as relay 37 is switched off.

The sheets shown in Fig. 2 contain information tracks which are not in the direction of the Leaf movements proceed so that they are felt with HiKe of heads moving across the leaves will. It is advantageous to use only one pair of heads that are used during the scanning movement the desired information and the associated clock track relative to the position of the sheet instead of scanning a single pair of heads from a plurality of pairs of heads with the aid of a counter is selected. When the data is placed on the sheet of Figure 2, the table becomes 60 executed more briefly, and instead of selecting two heads 34 and 35 with the aid of a counter 33 a single pair of heads is used, which is guided past the information tracks, while the Leaf remains at rest at a point where the subgroup or second classification signal result in a match when compared.

In this embodiment, the gate circuits 32 and 35 and the counter 33 are omitted, and the Tyratron 31 is switched so that it actuates a relay, the contacts of which stop the sheet conveying device by the circuit of the clutch magnet 97 is interrupted so that no further movement takes place, and by engaging a clutch that a one-time scanning motion by the in one Socket 103 held pair of heads according to FIG. 5 causes.

Upon completion of the sheet selection by the heads 65 and the comparison circuits 21 and 22, this becomes Sheet that bears the desired number, as in the first example, is sent to the next identification point, whereby the result of the comparison is checked for each group pulse. As soon as the second comparison If there is a match, the Tyratron 31 is ignited, and an arranged in the cathode circuit, relay not shown interrupts the circuit of the clutch magnet 97. This is the further feed interrupted while at the same time a clutch, not shown, during one revolution the cam 107 drives. The scanning heads are placed in the mount via levers 105 and 106 103 moved in a straight line along the guide 104 along the information track. The location of the information tracks is chosen so that they correspond to the successive movement steps of the sheet, d. H. the secondary identification groups with a single rotation of the rollers 87 and 88 so that they are available for a sensing cycle after each test. Instead of Contacts 36 and the gate circuit 35, two contacts are provided, which when the cam disc rotates 107 are actuated to start and end the reading according to the end positions of the lever 105 so that an accidental reading of the identification traces by the sensing heads at the end of the forward movement and suppresses the reading during the return movement will. Furthermore, at the end of the forward movement, the Tyratrone 23, 24 and 31 are switched off and the return movement initiated by the clutch magnet 97. It should be noted that with this Arrangement, the sheet does not need to be pulled out all the way on the stack, but only so far as it is necessary for identification. The return movement caused by the contact of the cam is triggered at the end of the forward movement of the lever 105, is ended by the fact that the hold circuit of the relay is interrupted by the contact 38 of FIG. 3 becomes effective.

In another embodiment, the sheets can be transferred to a drum and sensed while they are attached to the drum, as described in German patent applications D 25410 IX / 42 m and D 25340 IX / 42 m.

It should be noted that various changes in the coding and in the size of the groups can be made to accommodate more number systems. If the mechanical tolerances or the packing density of the symbols permit, a common clock track can be used, ie a track 5 of FIG. 1 for all information tracks 7B, 9C etc. as well as for the identification instead of the separate clock tracks for each signal track.

Claims (13)

PATENT CLAIMS: 1. Device for processing data which are on magnetizable sheet-shaped recording media, characterized in that the recording media contain main identification information (4,4) and a group of secondary identification information (4 B ... 4Z) which can be felt in relation to each other with further information recorded on other surface parts of the same sheet or other sheets (7 D, 9C) , etc., and that the device initially only has the identification information (4/4) scanning sensing devices (65) which only when a match with the desired identification causes another scanning of the secondary identification information, but if they do not match, the scanning of the next sheet is initiated. 2. Apparatus according to claim 1, characterized in that an information area is assigned to the secondary identification information is that the identification information can be sensed by the sensing device (65), without any of the information areas being scanned by associated information sensing means (64) will. 3. Apparatus according to claim 2, characterized in that a comparison device is provided can be seen that the secondary identification information with a predetermined, searched compares the second identifier, and that the information sensing means through this Comparison device are made effective, to feel the associated information area. 4. Apparatus according to claim 3, characterized in that devices are provided which take effect at the end of the reading of the information and block the reading while the sheet is dared back into the store, the return on the the same way as the feed takes place. 5. Apparatus according to claim 1, characterized in that the comparison precaution for comparison the main identification information with a representation of the sought identification of the sheet already takes effect when sensing a sheet that has only been partially removed from the stack, and by devices that feed the partially removed sheet back into the stack, if the comparison does not match. 6. Apparatus according to claims 1 to 5, characterized in that the information tracks (72 ?, 9C) run parallel to the identification tracks (4, 5, 6). 7. Apparatus according to claims 1 to 5, characterized in that the information tracks (7 B, 9C) run perpendicular to the identification tracks (4, 5, 6). 8. Apparatus according to claim 6, characterized in that a plurality of sensing heads (64) for the Information tracks are provided and that the heads by counting the number of labels can be selected prior to the determination of the match by the comparison device are felt. 9. Apparatus according to claim 7, characterized in that means for stepwise Removal of a sheet from a stack is provided in which at each step an identification information is sensed, and that in the event of a match of the comparison by the first and second comparison means interrupting the feed and scanning the information track is initiated so that that information is selected for reading that the second identification is assigned. 10. Apparatus according to claim 9, characterized in that by terminating the scanning the reading made ineffective during the return movement and the return of the sheet in the batch is initiated. 11. Apparatus according to claims 1 to 10, characterized in that the information surfaces (7, 8, 9, 10) are arranged in tracks with parallel clock tracks (8ß, 10C), and that the selected pairs of tracks are simultaneously sensed for reading. 12. Apparatus according to claims 1 to 11, characterized in that the identification tracks are a Group signal (4) for each identification and a clock signal (5) for each possible code number position exhibit. 13. Method for searching for data stored on a magnetic recording medium in such a way are recorded so that the order data can be sensed without the associated Information needs to be sensed with the aid of a device according to claims 1 to 12, thereby characterized in that first the main identification information (4/4) is sensed and with the sought Information is compared that then the secondary identification information is sensed and the associated information is only read when the secondary identification information with matches the identification you are looking for. Considered publications:
German patent specification No. 621 881. 1 sheet of drawings © 109 648/193 7.61