JPS6074736A - Radio selective calling receiver with display function - Google Patents

Abstract

PURPOSE:To utilize effectively a message storage area by setting a file to which a sector number of a storage area of a received message and information or the like of the operating state of a sector are stored. CONSTITUTION:A reception signal is converted (3) into a digital signal, which is inputted to a decoder 4. When an input call signal is coincident with the own call signal of the decoder 4 stored in a P-ROM5, the decoder 4 gives this information to a message processing section 6. Thus, the processing section 6 outputs a call tone to a speaker 8 via the decoder 4 and stores the message information inputted successively to the internal memory. File constitution which stores a file number representing the incoming order of the message, information discriminating the operating state of a sector, information discriminating the operating state of a file number, and a file number to be protected or the like is set to the memory, and erasion/protection/idle area or the like of the message file is displayed on a display device 9 by the operation of switches SW1-SW3.

Description

[Detailed description of the invention] Ru.

In recent years, wireless selective calling receivers have made remarkable progress.

In addition to a service that simply notifies reception using a selective calling signal (a specific number assigned to each subscriber), there is also a service that displays a simple message by adding a message information signal to the selective calling signal. It is being For this reason, receivers are designed to have multiple functions such as storing, displaying, and erasing message information. To display this message information, after receiving the selective call signal and the message information signal, a notification sound is sent to notify that the signal has been received, and at the same time, the display device is driven to display the message information. Note that since there are cases where the frequency of calls is high, or where the subscriber does not immediately take action in response to the message information after receiving it, the subscriber is usually configured to be able to store a plurality of pieces of message information. At present, the message information content is mainly numerical information, and at most 20 pieces of numerical information are sent as a message information signal. However, in the case of text information, which is expected to become more widespread in the future, it is expected that it will be essential to convey information several times to several tens of times as much as numeric information.

Therefore, a function for receiving and storing variable length message information is essential as a receiver function.

As a device that realizes this function, an application has already been filed for [Wireless selective calling receiver with display function] (Patent application No. 57-10478).
No.) has been proposed. The outline of this proposed device is as follows:
This device divides the message information storage area into a plurality of storage units and stores the message information using a plurality of the continuous storage units according to the message information signal length. However, with this device, the message information is stored in consecutive memory units, so the function of erasing only the message information that is no longer needed cannot be realized, and the disadvantage is that very complex processing is required to realize it. .

In addition, with conventional devices, the oldest message information is always
It is automatically deleted every time new message information is entered. On the other hand, to protect certain message information from being deleted.

For the same reason as mentioned above, this method has the disadvantage of requiring complicated processing.

The present invention aims to eliminate the above-mentioned drawbacks, and the present invention aims to solve the above-mentioned shortcomings. The present invention is characterized in that a file structure for storing designation and order information is set, and a registration area is set so that message information is not automatically deleted.

The present invention will be explained in detail below using the drawings.

FIG. 1 shows an example of the structure of a received signal of a selective call receiver.
In FIG. 1(a), P is a prefix signal, F is a frame synchronization signal, N is a selective call signal, and ■ is a message signal.

A plurality of message signals I are arranged as necessary depending on the message length. Figures 1(b) and (c) are respectively.

BC as an example of selective call signal N and message signal I
A signal obtained by adding one parity bit to H(31, 21) is shown. These signals consist of a 21-bit information bit area INF, a 10-bit check pit area CK, and a 1-bit even number EP, and each word is composed of 32 bits.

Select the MSB (most significant bit in the information bit area INF) Call signal (logic ``0'') and message signal (logic ``1'')
The remaining 20 bits are used as the subscriber number information area or message information area.

The message information is in binary coded decimal (BCD) code (4
bit structure) or ISO-7 bit code is used. The sending order is the lowest number of the first message code)
The messages are sent out in LSB order, and a plurality of message signals are sent out depending on the message length.

One possible method for specifying the BCD code or ISO code used in a message is to use the selective call signal. wife! l) A selective call signal for sending a message signal using a BCD code.

This is a method of transmitting a message signal using an ISO code and a selective calling signal, and if the receiver can detect at least these two signals, it can decode each message signal.

FIG. 2 is a block diagram showing an example of a wireless selective calling receiver according to the present invention.

A radio signal received by antenna 1 is amplified and demodulated by radio section 2. The demodulated signal is sent to the waveform shaping circuit 3
The signal is converted into a waveform (digital signal) that can be read by the decoder 4 at the subsequent stage.

The decoder 4 is a writable read-only memory (p-RO
M) Compare the own calling number written in advance in 5 with the digital signal from the waveform shaping circuit 3.

When these match, a signal is sent to the message processing unit 6 to notify the call. The message processing section 6 decodes the message signal using this signal, and when the message signal ends, notifies the decoder 4 of this fact, and outputs a sound signal to the amplifier 7 via the decoder 4,
Drive the speaker 8. Further, the message processing unit 6
The decoded signal of the message signal is stored in the internal RAM (Ramdo
mAccessMemor)') in file format, and provides visual information via the two-light-emitting display LCD 9.

The RT (reset) switch 10 via the decoder 4
The change information and status signal are sent to the message processing unit 6, which performs operations such as stopping the sound and stopping and starting the LCD display. Switches SWI to SW3 set the operation mode for protecting and erasing each message file, displaying an empty area, etc. according to the timer IF. A detailed explanation of these operation modes will be given later.

The output terminal 14 is a terminal for outputting data in the message file to the outside, and this operation is also executed in the operation mode. The crystal oscillator 15 is a clock generating oscillator that operates the decoder 4.

FIG. 3 shows an example of the block configuration of the message processing section 6 described in FIG.

The first CPU 21 is connected to the decoder 4.

Input/output terminals: 8 interrupt input terminals, program memory.

It has a built-in data memory, serial input/output terminal, and timer, and receives and decodes the message signals mentioned above, and sends the decoded message information in message file format to SI/
It is stored in the RAM 22 using the So/SCK and CE2 signals. Further, the CPU 21 transfers the decoded message information to the LCD driver 23 using the S I/SO/SCK and C'El signals, and provides visible information to the LCD 9.

- Power, switch, and Jchi SWI to SW3 are also connected to the CPU 21.

Next, each signal connected between the decoder 4 and the CPU 21 will be explained.

The signal DATA is for transmitting a message signal to be sent following the 2 selection call signal. When the 2 selection call signal is received, the internal dart of the demarder 4 is opened and the subsequent reception signal is sent out. This signal is stopped at the message address MEND from the CPU 21 when the internal dart is closed. Signal CLK is a synchronous clock signal for receiving the message signal sent by signal DATA, and data is received at the rising edge of signal CLK. This signal CLK is normally irregular and is sent out when a message signal is sent out, so it can also be used as a start signal. The signal RFC is a reception control signal that notifies the received selective calling number when receiving a plurality of selective calling signals, and this signal determines whether the message signal is to be decoded in BCD code or ISO code. .

The 2 kHz signal TCL is the original clock signal of the timer. The CPU 21 uses a built-in timer to count the number of pulses of the signal TCL.

A timer function such as automatic stop of visual display on LCD 9 is realized. The signal RTS is a positive pulse signal sent when the state of the BT switch 10 changes. This signal RTS can also be used as a start signal like the signal CLK. The signal RT is a state signal of the RT switch 10, which is normally in the normal state, and outputs a low level signal when the RT switch 10 is pressed. The signal ALTC is an alert control signal for outputting the aforementioned sound signal, and multiple types of sound signals can be specified by the alert signal ALT. The signal MEND is a message end notification signal that notifies the decoder 4 that reception of the message signal is completed.

Serial signal SI/So/SC is connected to external output terminal 14.
K and signal CE3 are sent out, and it is also possible to print message information using these signals.

The 1 chip CPU shown here is μPD 750
8G can be used, and μPD7228G can be used as the LCD driver.

4 and 5 show a conventional message storage method. MDATA 1 to W) ATA n indicates the message information storage area, MFI to MFn indicates the presence or absence of message information to the corresponding message information storage area, and M81 to M8n indicate the message information stored in the storage area. This area indicates whether the information is the beginning or continuation information. That is, by giving "0" to areas MSI to MS n for the first one and adding 1 to the subsequent ones, multiple message information storage areas are used.
It is possible to store messages of variable length.

FIG. 5 is a table for specifying a message address when storing message information in the message information storage area shown in FIG. 4, and its operation will be explained.

The initial value (T1) is the message address MAD 1 to MA
Addresses or hahara meters corresponding to signals Mn, Mn, -1...Ml are set in Dn, and when a message is received, addresses MAD 1 to MAD are set as shown by T2.
# of MADn J rjs6r, + 1 ri −, −
y L & J, 11hr+ 11y 11#01
4a enters. According to this Ml information, the message information is stored in the storage area MDATA 1, and MFI = 1
, set MS1=0. Similarly, message signals are received and T3, T4 and addresses MAD1~
By shifting MADn and sequentially storing it in the storage area.

Message information can be stored sequentially. If all of the storage areas MDATA 1 to MDATA n are stored, the oldest message information will be erased and the newest message will be stored.

The disadvantage of this method is that, as mentioned above, the message information is stored in the storage area MDATA+1MDATA! +1. ...
.

Since it is stored in a sequential structure such as MDATAi+, any message information can be deleted.

Alternatively, erasure prohibition protection is not possible, or even if it is possible, it would be extremely complicated.

6 to 10 show examples of data structures used in the message storage method implemented in the present invention.

First, the memory area required for storing, erasing, and protecting message information will be explained. In FIG. 6, p M i
-M i is a message file number storage area that stores the new and old received message information and the corresponding message file number Fi.

The initial value is all 0# for Ml-Mi data.

Indicates that no message file number is stored. Next, when a message signal is received and the message file is assigned to number F3, M1 receives F3.
Information is set. Furthermore, when a message file number Fi is assigned.

Mi 4-M1=+ + Mi-+←Mi-z+...
The messages are shifted and stored as follows: M2←Ml, Ml←Fi, and in this way, the number of the latest message file is always stored in Ml. Here, the message file number stored in Ml will be automatically deleted by the above shift.

In FIG. 7, MPI to MPj are message file number storage areas that store the numbers of message files that are not to be deleted among the received message files. Registration in this area is performed in the message file protection mode of the operation modes described later. For example, when protecting the message file number F1 stored in Ml in FIG.
When you transfer number F1 to I, MPI4-Fi
, MP2←MPI.

..., MPj 4- MPj-t, and M1←M2 + Mi-+←Mi, Mi
= updated as Q.

In Figure 8 (,), FSTATUS is a message file status determination area that stores the message file usage status, and is "0#" when not in use and "1" when in use.
is stored for each message file. Therefore,
When allocating a new message file, this register allows you to know which file is empty.

In FIG. 8(b), 5STATUS is a sector status determination area that stores the usage status of sectors that store message information, and is similar to the FSTATUS area.

'l# (used) or 0# (unused) is stored in each corresponding bit so that it can be determined whether each sector is used or not. In other words, when storing message information, select an empty sector based on this 5STATUS information,
Message information is stored in the storage area of that sector.

In FIG. 9, Fl-Fn is a message file information area assigned corresponding to the number of each message file, and the sector numbers constituting one message file are stored in order for each message file. There is.

In this example, the message file F1 is composed of three sectors, S1, S2 and S5, and one piece of message information is stored in these sectors.

In FIG. 10, 5l-8k indicate memory areas allocated corresponding to each sector number, and message information is stored in these areas. In this example, the number of characters that can be stored in one sector is 10. Within this sector, message information is stored sequentially. In other words, the message file with number 2 F1 is 81,
It is composed of 82.85 sectors, and its message information is located at 'PLEASE GOTOTHE HO'.
RA*” is an example of a confirmation code, and when displayed visually, it is known that the message has ended.

According to the message storage method shown here, protection of the message file involves transferring the file number from the message file number storage areas M1 to Mi in FIG. 6 to the MPI of the message file number storage area in FIG. , M1 to Mi, and MPI to MPj.

Also, to delete the message file,
! Alternatively, deletion of file numbers from areas MP1 to MPj can be carried out by resetting the corresponding bits in the FsTp and rus areas and resetting the bits corresponding to the used sector numbers in the 5STATUS area.

FIG. 11 is a schematic diagram of the program configuration in the 1-chip CPU gl of this embodiment. The main flow is executed after the power is turned on. In step 101, control registers etc. are initialized, and in step 102, the RAM 22 (third
(See figure) Operation tick part 4
, h m k h-iffi #coffin true 1.

In step 103, it is checked whether there is a processing request from each interrupt, and if there is no processing request, it waits in a standby state.On the other hand, if there is a request, it executes each process in steps 104 to 108 according to the request, and then steps Return to 103.

Next, an outline of each process in steps 104 to 108 will be explained.

In step 104, first, the presence or absence of empty files and empty sectors is checked, and if there are none, "Memo 1JFull" is displayed and notified. On the other hand, if there is, the received message information is displayed, a sound signal is sent out, and a timer is activated.

In step 105, the results of the self-diagnosis performed in step 102 are displayed. After this, all dots are displayed and a display for crosstalk confirmation is performed, making it possible to confirm whether the LCD 9 is mounted in the correct position.

Step 106 is to stop the sound signal in response to a change in RT switch 0, update the diagnostic display, activate the operation mode, and perform various processes within the operation mode.

Executes deletion and protection of ever-changing message files, output of message information externally, memory backup processing, etc. In addition, the switches SWI to SW3 performed in step 108
It also starts the monitoring process.

In step 107, the time is monitored for automatic stopping and updating of various displays and reception of switches SW1 to SW3.

In step 108, the inputs of switches SWI to SW3 are monitored, and the display is updated according to the internal state and each switch input.
0 to update the operation mode and stop the display Next, the CLO (clock out) interrupt flow will be explained. This interrupt flow is started at the rising edge of the CL and F signals, and in step 201 it is determined whether the message signal is started or continued, and at the start, various control flags FtG and counters necessary for receiving the message signal are Perform initial settings such as. In step 202, the message signal is received bit by bit, the counter is updated, and the l message signal is received. After that, error correction is performed and the presence or absence of a message signal is determined by the highest
It is determined by SB, and if it is a message signal, the message information is stored in a message file in a message storage flow described later. On the other hand, if it is not a message signal, it is determined that the message signal has ended, and this is notified to the decoder 4 using a message end signal MEND.

A startup request is made in step 104.

RTS interrupt processing is started at the rising edge of the RTS signal, and since a change has occurred in the RT switch 10, step 0 is started.
6 is made in step 301.

Finally, the timer interrupt process uses the 2 kHz signal TCL as the original clock and starts when the count number set by the internal timer is reached. Step 401 Tc.

In order to notify this fact, a processing request in step 107 is made.

FIG. 12 shows a state transition diagram of various displays in this embodiment. Further, the general functions of various operation modes will be explained below.

1. Message file protection mode (PF) activation conditions・
...In message file access mode (AM), 1,000 RWI, tlB TW is detected.

Summary function: Changes the attributes of the specified message file and moves it from the current file to the permanent file.

2. Message file deletion mode (DL) activation conditions・
...Due to detection of depression of switch SW2 in message file access mode (AM).

General function: Delete the registration of the file specified in the current A-manent file.

3 Message file - Mass deletion mode (CM) activation condition: Based on detection of depression of switch SW3 in message file access mode (AM).

General function: Delete files all at once using various combinations of current and /l-manent files.

4. Readout display mode (RO) Activation condition: In the mode selection mode, by detecting the press of RT Swisstel 1O. Or by detecting the depression of the switch SW1 in the message display mode (DM).

General function: Reads and displays stored message files.

5. Empty area display mode (FA, ) activation conditions...
Switch SW2 in message display mode (DM)
Based on the press-down detection.

General function: Displays the number of unused files in the current permanent file and the number of remaining characters in memory.

6 Message number display mode (NF) Activation condition: Detection of depression of switch SW3 in message display mode (DM).

General function: Displays the file class registered and stored in the current program file.

7. Scroll operation setting mode (SM) activation conditions...
Based on detection of depression of switch SWI in operation setting mode (CT).

Overview of functions: Switching between automatic and manual scrolling in the readout display, and when automatic.

Scroll time is set 08, Message output mode (OP) Starting condition: Based on detection of depression of switch SW2 in operation setting mode (CT).

Outline function: Specified message file data 7
Transfer via RealHot.

9. Memory backup mode (BM) starting condition: Based on detection of depression of switch SW3 in operation setting mode (CT).

Outline of functions: Performs memory buffer lag requests and initializes file management information after recovery 0 Figure 13 shows mode selection to specify each operation mode.

This shows display examples of operation setting mode (CT), message file access mode (AM), and message display mode (DM). Mode selection is displayed using switch RT, and access is then accessed using switches SWI to SW3. Switch operation is made easier by displaying possible operation modes.

To explain an example of the operation, when the switch RT is pressed, a mode selection display is performed as shown in FIG. 13(b).

For example, when the switch SWI is operated, the message display mode DM is entered. It goes without saying that if the switch SW3 is then operated in, for example, FIG.

FIG. 14 shows an example of the flow of storing message data into a message file during message data reception in step 202 explained in FIG.

In step 501, the signal DATA is fetched bit by bit, sequentially stored in the received data RDATA area of the internal memory, and counted to receive a 32-bit signal, and the process proceeds to step 502.

In step 502, it is determined whether the signal received in step 501 is a message signal or a selective call signal based on the logic of the most significant bit (MSB) as explained in the code structure of FIG. If it is a message signal, the process proceeds to step 503; otherwise, the process proceeds to step 513.

In step 503, a new/continued determination is made.

Determine whether or not to perform the message file storage procedure. In other words, in the case of continuation, the storage procedure is not executed.

Proceed to step 507. On the other hand, if it is new, go to step 504.

In step 504, it is checked whether the message file number assignment number IFN and the sector number assignment number ISN for storing the message information are not "0". In other words
II For Q II, it is an empty file.

This indicates that there are no empty sectors, and in this case, the message data reception operation ends. On the other hand, if it is not 0'', the FSTA that stores the file usage status in step 505
Set the bit corresponding to the TUS area allocation number IFN to 1#
Set the bit corresponding to the allocation number ISN in the 5STATUS area that stores the sector usage status to "1#,"
Set 1#.

Furthermore, sector S is added to the message file information field 1J7FI indicating the sector configuration of the message file.
The sector number ISN is stored in the position corresponding to the number C, and the process advances to step 506.

In step 506, an address proportional to the sector number ISN is set in the store address area 5TAD, which holds an address for storing message information.

Here, α is proportional to the number of galactors that can be stored within one sector. After this, the process advances to step 507.

In step 507, one character is extracted from the received data RDATA area storing the received message signal, and in step 508 it is determined whether it is a character code. If the code is other than the character code, the process advances to step 514 and subsequent steps to terminate message data reception. On the other hand, in the case of a 9-character code.

In step 509, the message file is stored in the message file storage area designated by area 5TAD, and in step 510, the address of area 5TAD is updated by adding +1, and the process advances to step 511.

Stella f511 monitors the address in area 5TAD to see if it has moved to another sector, and if it has not crossed the border, it proceeds to step 512 and determines whether storage of the 1-word message signal has been completed. If it has not been completed, the process returns to step 507 and repeats the withdrawal and storage of the character. on the other hand.

If completed, the process returns to step 501 to receive the first message signal. If it is determined in step 511 that the sector has moved to another sector, 1 is added to the sector SC area that stores the number of used sectors in step 518, and
In step 519, it is determined whether the number exceeds the specified number. Namely.

β is the number of sectors that can be stored in the message file information area shown in FIG. Here, if the number is greater than or equal to the specified number, the process advances to step 515 and the termination procedure is performed. On the other hand, if the number is less than the specified number, step 520
In step 521, the 5STATUS area is searched for an empty sector, and if it is found, the sector number is assigned the assigned number ISN.
At the same time, the 5STATUS area is updated and the sector number is stored in the file information area.At step 512, the area 5TAD is reset, and the process proceeds to step 512. On the other hand, if there is no empty sector, the oldest file Fn stored in areas M1 to M+ is erased in step 523. In step 524, the bits of the FSTATUS area corresponding to the file Fn are reset, and in step 525, all the bits of the 5STATUS area corresponding to the sector number used in the file Fn are reset, and the process returns to step 520. Make assignments.

Step 513 is executed when the received signal is determined to be a selective calling signal in step 502, and here it is determined whether the number of used sectors is one or more. However, if there is no message signal, proceed directly to the end. On the other hand, sector SC
If the number of used sectors stored in the area is 1 or more, an end code 1*'' is written after the message information in step 514, and the file number code is set to Ml in the message information 516 in step 515, and Mi -+Mi+1 sequentially, step 51
At the same time as issuing a request to start the report display at 7.

A signal MEND is output to the decoder 4 to notify the end of message data reception, thereby completing the message data reception operation.

According to the present invention, it is possible to not only store and display a plurality of pieces of message information of variable length, but also erase message information that is no longer needed and erase protection function for message information that does not want to be erased. It is possible to provide a wireless selective calling receiver with a display that can effectively use the storage area of the device and can be used as a substitute for a record book due to the erasure protection function.

[Brief explanation of drawings]

Figures 1(a), (b), and (e) are diagrams showing the signal configuration used in the present invention, and Figure 2(,) is the overall signal configuration.9(b) is the selective call signal diagram 2(c). ) indicate message signals, respectively. FIG. 2 is a block diagram showing an embodiment of a wireless selective calling receiver with a display function according to the present invention. FIG. 3 is a block diagram of the message processing section 6 in FIG. 2. 4 and 5 are diagrams for explaining a conventional method of storing message information, and FIG. 4 is a configuration diagram of a storage area;
FIG. 5 is an explanatory diagram of the operation when storing. 6 to 10 are block diagrams of memory areas used for storing message information used in the present invention. FIG. 11 is a diagram showing the program configuration within the chip CPU 21 used in the present invention. FIG. 12 is a state transition diagram showing the transition of various displays of the receiver of the present invention. FIG. 13 is an example of the display displayed on the display when selecting various operation modes realized by the receiver of the present invention. FIG. 14 is a flowchart illustrating a method for storing message information according to the present invention. 1... Antenna, 2... Radio section, 3... Waveform shaping circuit. 4... Decoder, 6... Message processing unit, 7...
- Amplifier, 8... Speaker, 14... External output terminal, 15... Oscillator, 21... l-chip CPU. Figure 4 first 1. Iゎ Negative-5 figure ↓ MSI-11MS2-I MS3-2 Figure 6 7th area

Claims (1)

[Scope of Claims] 1. A wireless selective calling receiver with a display function that receives a selective calling signal and a message signal following the selective calling signal, and stores and displays message information obtained by decoding the message signal. a first storage means having a predetermined storage capacity; a first control means for randomly storing one or more types of the message information in the first storage means; and the first memory in which the message information is stored. a second storage means for storing a sector number representing a storage area of the means in correspondence with each message information; a third storage means for storing a file number representing an order of arrival in correspondence with each message information; a fourth storage means that corresponds to each sector number of the first storage means and stores information for determining whether the sector is used; and a fourth storage means that corresponds to each file number of the second storage means and stores information for determining whether the sector is used a fifth storage means for storing determination information as to whether or not the message is written, and a fifth storage means for erasing desired message information, the corresponding sector number and its determination information, and the file number and its determination information from each of the storage means. 2
A wireless selective calling receiver with a display function, including a control means for. 2. In a wireless selective call receiver with a display function that receives a selective call signal and a message signal that follows it, and stores and displays message information obtained by decoding the message signal, a predetermined memory is provided. a first storage means having a capacity; a first control means for randomly storing one or more kinds of message information in the first storage means; and a storage area of the first storage means in which the message information is stored. a second storage means for storing a sector number representing the message information in correspondence with each piece of message information; a third storage means for storing a file number representing the order of arrival in correspondence with each message information; and the first storage means. A fourth section corresponding to each sector number and storing information for determining whether the sector is used or not.
storage means, a fifth storage means that corresponds to each file number of the second storage means and stores discrimination information as to whether the file is being used, and a sixth storage means that stores the file number to be protected. storage means, and a third storage means for transferring a desired file number from the third storage means to the sixth storage means.
A wireless selective calling receiver with a display function, including a control means for. 3. In a wireless selective calling receiver with a display function that receives a selective calling signal and a message signal following the selective calling signal, stores and displays message information obtained by decoding the message information, a predetermined storage capacity is used. a first control means for randomly storing one or more kinds of message information in the first storage means; and a storage area of the first storage means in which the message information is stored. a second storage means that stores a sector number in correspondence with each piece of message information; a third storage means that stores a file number representing the order of arrival in correspondence with each piece of message information; A fourth storage area that corresponds to the sector number and stores information for determining whether or not the sector is being used.
storage means, a fifth storage means that corresponds to each file number of the second storage means and stores discrimination information as to whether the file is being used, and a sixth storage means that stores the file number to be protected. a second control means for erasing desired message information, a corresponding sector number and its discrimination information, and a file number and its discrimination information from each of said storage means; and third control means for transferring a desired file number to the sixth storage means.