JPH05252249A - Telephone set provided with redial function - Google Patents

Abstract

PURPOSE:To simplify dialing operation by expanding a range of using a redial function. CONSTITUTION:When a dial number is entered by a ten-key 4, the entered dial number is stored in a RAM 2. Then, a latest dial number stored in the RAM 2 is sequentially called by a redial key 6 and the dial number is outputted on a display device 5. When a desired dial number among called dial numbers on the display device 5 is selected by a start key 7, the dial number is outputted to a line by a dial control circuit 8 and dialed to the destination automatically via a telephone line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device having a redial function.

[0002]

2. Description of the Related Art Conventionally, a telephone device such as a business phone or a facsimile device with a dial function is equipped with a redial function for storing the last dialed dial number and redialing the dial number by one-touch operation. There is. In other words, the last dialed number by the user is stored in the redial buffer, so if you call the same party again as before, simply press the redial key and it will be automatically stored in the redial buffer. The phone number you are dialing is dialed.

[0003]

However, in the conventional redial function, only one telephone number can be stored in the redial buffer, and the telephone number stored in the redial buffer is different from the newly dialed telephone number. The erased and newly dialed dialed number is stored in the redial buffer. Further, there is no means for confirming the telephone number stored in this redial buffer. Therefore, when a single telephone device is used by a plurality of users, the redial function may not be available with peace of mind. In other words, after making a call once, when making a call again to the same person as last time, the redial function is normally used, but since the other person used it after using the phone, the call was made. There is a possibility that the number has been deleted and another telephone number has been stored, and because the stored telephone number cannot be confirmed, the redial function cannot be used with confidence.

The present invention solves the above-mentioned problems. By storing dial numbers in a memory in the order in which they are dialed, redialing is possible even if the dialed number is not the one dialed immediately before. It is an object of the present invention to provide a telephone device in which the functions can be used, the range in which the redial function can be used is expanded, and dial operation can be simplified.

[0005]

In order to achieve the above object, the present invention, as shown in FIG. 1, includes dial input means 11 for inputting a dialed dial number, and dial input means 11 for inputting the dial number. A storage means 12 for sequentially storing dial numbers, an output means 13 for outputting the dial numbers stored in the storage means 12, and a selection for selecting a desired dial number from the dial numbers output to the output means 13. Means 15 and control means 16 for dialing the dial number selected by the selection means 15
It is equipped with and.

[0006]

According to the above construction, when the dial number is inputted by the dial input means 11, the inputted dial number is stored in the storage means 12. Then, the dial number is output to the output unit 13, and when the selection unit 15 selects a desired dial number from the output dial numbers, the control unit 16 sends the dial number to the line. Is output, and the other party is automatically dialed via the telephone line.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram of the control unit of the telephone device. The main body of the control unit is CPU1, RAM2, ROM
It is a microcomputer composed of 3 and 3. The CPU 1 includes a numeric keypad 4 as the dial input means 11 described above.
A display 5 as an output unit 13, a redial key 6 as a calling unit 14, a start key 7 as a selection unit 15, and a dial control circuit 8 as a control unit 16 are connected to each other.

In the RAM 2 as the storage means 12, a dial buffer 9 for sequentially storing dial numbers input by the ten keys 4 and a write pointer P1 for storing a writing position of the input dial numbers as shown in FIG. And a register area 10 for storing a read pointer P2 for storing the read position of the dial number.
Further, the ROM 3 stores a control program for controlling the present telephone device. This RAM2, ROM3
Are each connected to the CPU 1.

When the numeric keypad 4 is pressed, a dial number is input. The display 5 is
The dial number input by the numeric keypad 4 or the dial number stored in the dial buffer 9 is used by the CPU 1
Displayed under the control of. The dial control circuit 8 is a CPU
The control of 1 outputs the dial number to the line as a dial signal. When the redial key 6 is pressed, the CPU 1 sequentially reads out the latest dial number stored in the dial buffer 9 and displays the read dial number on the display 5. When the start key 7 is pressed, the CPU 1 reads the dial number displayed on the display 5, controls the dial control circuit 8 and outputs the read dial number to the line as a dial signal.

The operation of the telephone device configured as described above will be described with reference to FIGS. 3 to 7. 3 to 6 are diagrams showing the state of the dial buffer 9, and FIG. 7 is a flowchart showing the operation of the telephone device according to the present embodiment. First, when the power is turned on, the CPU 1 performs initialization such as clearing the RAM 2, initializing the register area 10 and clearing the display 5 (S0). When the initialization is completed, the CPU 1 enters a standby state for monitoring a key input (S1).

When the first digit of the dial number is input (for example, "0") by the ten keys 4 (S2),
The CPU 1 displays the number (for example, "0") on the display 5
Is displayed (S7), and the operation returns to the standby state (S1). When the dial number is input after the first digit of the dial number (for example, 52 8888 4444), the CPU 1 sequentially displays the input dial number on the display 5 (052 8884444).

Next, when the start key 7 is pressed (S
4) The CPU 1 checks whether the dial number is displayed on the display 5 (S6), and if the dial number is not displayed, that is, before the dial number is input by the loop of S1, S2 and S7. If there is, it returns to the standby state (S1). On the other hand, if the dial number is displayed, the dial control circuit 8 outputs the dial number displayed on the display 5 as a dial signal to the line and dials it (S11). Upon completion of dialing, the CPU 1 checks whether this dial number is the same as the previous dial number (S12). If it is the same as the previous dial number, the CPU 1 clears the dial number displayed on the display 5 without performing the writing process (S15) and returns to the standby state (S15).
1).

On the other hand, if it is not the same as the previous dial number, the CPU 1 writes the dialed dial number in the dial buffer 9 according to the write pointer P1 stored in the register area 10 (S13). Subsequently, the CPU 1 increments the write pointer P1 by 1 and stores it in the register area 10 as write pointer P1 = read pointer P2 (S14). As a result, the dialed dial number is stored in the dial buffer 9 (writing of 052 8888 4444 is completed).
FIG. 3 shows the state of the dial buffer 9 at this time. Subsequently, the CPU 1 clears the dial number displayed on the display 5 (S15) and returns to the standby state (S1).

The same procedure is followed (S1, S2, S7,
S4, S6, S11, S12, S13, S14, S1
5) The newly dialed dial numbers are sequentially stored in the dial buffer 9. FIG. 4 shows the state of the dial buffer 9 when this operation is performed three times (03
333 2222 written state). As described above, the dial numbers are sequentially stored in the dial buffer 9 in the order in which they are dialed, and the new dial number is not overwritten on the previously dialed dial number and the previous dial number is not erased. ..

Although not shown in FIG. 7 for simplification, the value of the write pointer P1 is set to the dial buffer 9
If the maximum storage capacity of is exceeded, dial buffer 9
The dial number stored at the beginning of is deleted and all the dial numbers stored thereafter are sequentially stored again in the previous position in the dial buffer 9. Then, after setting the write pointer P1 to point to the upper limit position of the dial buffer 9, a new dial number is written in the dial buffer 9.

Next, a case where the user redials in the state of the dial buffer 9 as shown in FIG. 4 will be described. The CPU 1 is in a standby state for monitoring key input (S1), and in this state, the redial key 6
When is pressed (S3), CPU 1 causes dial buffer 9
Check if the dialed number is stored in (S
5) If not stored, that is, if the read pointer P2 is located at the head of the dial buffer 9,
It returns to the standby state (S1).

On the other hand, if it is stored, the CPU 1 causes the read pointer P2 stored in the register area 10 to be read.
-1 (S8), and according to the read pointer P2, the latest dial number (03
333 2222) is read (S9). FIG. 5 shows the state of the dial buffer 9 at this time. continue,
The CPU 1 displays the read dial number on the display 5 (S10) and returns to the standby state (S1).

Here, the user confirms the dial number displayed on the display 5, and if the dial number of the desired destination is displayed, presses the start key 7 (S
4). As a result, through the processing of S6 to S15, the dial number displayed on the display 5 is dialed, and the CPU 1 returns to the standby state (S1). If the desired dial number is not displayed here, by pressing the redial key 6 again (S3), the CPU 1 goes through the processes of S5 to S10, and the CPU 1 assigns another old dial number (06 666 8888). It is displayed on the display 5 (S10) and returns to the standby state (S1). FIG. 6 shows the state of the dial buffer 9 at this time.

When the redial key 6 is pressed again (S3), the CPU 1 goes through the steps S5 to S10 again.
In addition, another old dialed number (052 88
84444) is displayed (S10) and returns to the standby state (S
1). By performing the above operation, the user can find his / her desired dial number, and when the desired dial number is displayed, press the start key 7 (S
4) By doing so, the CPU 1 dials the dial number displayed on the display 5 via the dial control device 8. If any key other than the numeric keypad 4, the redial key 6 and the start key 7 is pressed while the CPU 1 is in the standby state (S1), it is determined that an error has occurred and other processing is performed (S16).

As described above, a plurality of dial numbers are stored in the dial buffer 9, and by pressing the redial key 6, the latest dial numbers among the stored dial numbers are sequentially called and displayed on the display 5. Therefore, when one telephone device is used by a plurality of users, the user presses the redial key 6 a plurality of times to set the dial number of the desired destination to the stored dial numbers. You can make a redial call with a simple key operation without entering the dial number again. Also, since the redial function can be used after confirming the dialed number, it is possible to prevent the wrong dialing number from being dialed, and the redial function can be used with peace of mind.

The present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. For example, the present invention is not limited to a telephone device, but is effective for all devices having a telephone function such as a facsimile device.

Further, the process of S12 is performed for all dial numbers stored in the dial buffer 9,
If there is no same one, the process may proceed to S13.
At this time, if there is the same one, the following processing is performed. First, the same dial number in the redial buffer 9 is deleted, and all the dial numbers stored thereafter are sequentially stored again in the previous position in the dial buffer 9 and output to the line this time. The dialed number is written at the end of the dial buffer 9. Then, the read pointer P2 and the write pointer P1 are set so as to point to the storage position one above them. By doing so, it is possible to prevent the same number from being stored in the dial buffer 9.

If a display capable of displaying a plurality of dial numbers is used, the selection means
It is also possible to use a configuration in which an arbitrary number is selected from a plurality of dial numbers displayed on the display.

[0024]

As described above, according to the present invention, a plurality of dial numbers can be stored in the storage means, and when the redial function is used, the dial number stored in the storage means is output to the output means. be able to. Therefore, when one telephone device is used by a plurality of users, the user can find the dialed number of the desired destination from the stored dialed numbers, and the dialed number is again used. Redial calls can be made with simple key operations without entering a number. Also, since the redial function can be used after confirming the dialed number, it is possible to prevent the wrong dialing number from being dialed, and the redial function can be used with peace of mind.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of a telephone device of the present invention.

FIG. 2 is a block diagram of a control unit of a telephone device according to an embodiment of the present invention.

FIG. 3 is a diagram showing a state of a dial buffer of the telephone device according to the present embodiment.

FIG. 4 is a diagram showing a state of a dial buffer of the telephone device according to the present embodiment.

FIG. 5 is a diagram showing a state of a dial buffer of the telephone device according to the present embodiment.

FIG. 6 is a diagram showing a state of a dial buffer of the telephone device according to the present embodiment.

FIG. 7 is a flowchart showing the operation of the telephone device according to the present embodiment.

[Explanation of symbols]

 1 CPU 2 RAM 3 ROM 4 Numeric Keypad 5 Display 6 Redial Key 7 Start Key 8 Dial Control Circuit 11 Dial Input Means 12 Storage Means 13 Output Means 15 Selection Means 16 Control Means

Claims (1)

[Claims] 1. A dial input means for inputting a dialed dial number, a storage means for sequentially storing dial numbers input by the dial input means, and an output means for outputting the dial numbers stored in the storage means. And a selection means for selecting a desired dial number from the dial numbers output to the output means, and a control means for dialing the dial number selected by the selection means. Telephone device equipped with.