JPH04273641A - Telephone set - Google Patents

Abstract

PURPOSE:To easily make a phone call to a telephone number acquired during talking without mistaking the telephone number. CONSTITUTION:A DTMF signal of a prescribed telephone number from an opposite telephone set is converted into a telephone number data and it is stored in a RAM 17. When it is required to make a phone call to the prescribed telephone number, the prescribed telephone number data is read from the RAM 17 and converted into the DTMF signal and sent automatically.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to telephones.

0002

2. Description of the Related Art In a conventional telephone, when a telephone number is used to listen to the telephone number of the other party or another party during a call, and then to make a call to that telephone number after the call is over, there is a method for storing the telephone number. There was something like this: ■Use a writing utensil to copy the phone number onto paper. ■Record the telephone number as an audio signal using a tape recorder, memory recorder, etc. ■Memorize the phone number in your head.

0003

[Problems to be Solved by the Invention] This method of storing telephone numbers has the following drawbacks. With method (2), there is a possibility that the phone number was misheard, copied incorrectly, or the push button (dial) was operated incorrectly. With method (2), there is a possibility that the telephone number may be misspoken during recording, misheard during playback, copying incorrectly, or operating the push button (dial) incorrectly. With method (2), there is a possibility of misremembering the telephone number, erroneously operating the push button (dial), etc. In any of the methods (1), (2), and (2), it is necessary to operate a push button (dial) in order to make a call to the telephone number.

[0004] In view of this point, the present invention proposes a telephone that allows a user to easily make a call to a telephone number obtained during a call without making a mistake.

[0005]

[Means for Solving the Problems] A telephone according to the present invention includes:
A storage means 17 for storing a selection signal of a predetermined telephone number from a telephone of the other party, and when there is a request to make a call to the predetermined telephone number, the selection signal of a predetermined telephone number is read out from the storage means 17. It comprises selection signal sending means 13 and 16 that automatically sends out selection signals.

[0006]

[Operation] According to the present invention, when there is a request to make a call to a predetermined telephone number, the selection signal sending means 13 and 16 that automatically send out a selection signal for the predetermined telephone number is read from the storage means 17. automatically sent.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to FIG. 1 is a terminal (actually, it consists of two terminals) that is connected to the telephone line by wire or via a wireless transmitter/receiver. This terminal 1 is turned off when waiting for an incoming call, and cannot be used for making or receiving calls. It is connected to a speech network 9 that performs 2-wire to 4-wire conversion through the hook switch 2 and the diode bridge circuit 7, which are turned on at the time of response. A transmitter 11 and a receiver 12 constituting a handset are connected to this speech network 9 via amplifiers 9 and 10, respectively. Further, the terminal 1 is connected to a ringer 5 through a hook switch 3 and a capacitor 4, which is turned on when waiting for an incoming call and turned off when a call is made or answered, and a sounder 6 is connected to the ringer 5. The hook switches 2 and 3 are turned on and off depending on whether the handset is placed on or taken off the cradle, and are also turned on and off by control signals from a control device 13 consisting of a microcomputer. This control device 13 includes a keyboard equipped with push buttons (a dial can also be used).
14 are connected.

Reference numeral 15 denotes a DTMF (Dual Tone Multi Frequency) decoder which receives a selection signal for a predetermined telephone number transmitted from the other party's telephone supplied through the speech network 9 during a call, in this case a DTMF signal (Dial Pulse). ) is decoded and converted into 4-bit binary data signals Q1 to Q4 indicating a telephone number. When the level becomes high, the control device 1 is controlled by the control device 13.
3 to the RAM 17 and stored from the first address, and the telephone number is displayed on a numeric display 21 connected to the control device 13 through a drive circuit 20. Under the control of the control device 13, an LED 19 connected to the control device 13 displays that a telephone number is stored in the RAM 17. Furthermore, RAM1
If multiple types of telephone numbers are stored in 7, display 2
1, the number of stored phone numbers may be displayed instead of the phone number, or the phone number may be displayed on the numeric display 21.
The number of stored telephone numbers may be displayed by the number of lit LEDs.

The timer (timer 1) 22 is a timer whose timer time is, for example, 1 minute, and the timer (timer 2) 23 is a timer whose timer time is, for example, 1 hour. Timing starts from the time the data signal is written. Timer (timer 2
) 23 has timed one hour, the telephone number stored in the RAM 17 is automatically erased under the control of the control device 13, and thereafter, when the strobe pulse ST becomes high level, the telephone number at that time is erased. The 4-bit binary data signals Q1 to Q4 shown are stored in the RAM 17 from the first address. Further, if the strobe pulse ST from the decoder 15 becomes high level before the timer (timer 1) 22 has counted one minute, the control device 13 causes the input data signal indicating the previous telephone number to be The data signal of the telephone number is decoded by the decoder 15, and the data signal indicating the telephone number is stored in the next address of the RAM 17. An erase switch 26 is connected to the control device 13, and when turned on, a data signal indicating the telephone number stored in the RAM 17 is generated under the control of the control device 13, regardless of the timing of the timers 22 and 23. is designed to be erased.

16 is a DTMF encoder, which is connected to the control device 1.
When the output switch 24 connected to 3 is turned on, under the control of the control device 13, if a data signal of a telephone number is stored in the RAM 17, a data signal indicating the telephone number is read out from the RAM 17, and the data signal indicating the telephone number is read out from the RAM 17, and The encoder 16 converts the data signal into a DTMF signal (a dial pulse is also possible), the DTMF signal is supplied to the speech network 9, and when the hook switch 2 is turned on under the control of the control device 13, the DTMF signal is
A signal is sent from terminal 1 to the telephone line.

[0011] A registration switch 25 is connected to the control device 13, and when this is turned on, under the control of the control device 13, if a data signal indicating a telephone number is stored in the RAM 17, the telephone number is A data signal indicating this is transferred to and stored in the abbreviated RAM 18 for abbreviated dialing.

Next, regarding the flow chart of FIG. 2, the DTMF signal is stored in the RAM 17 under the control of the control device 13
The operation of storing data will be explained below. First, in step ST-1, the DTMF signal is decoded by the decoder 15, and then the process moves to step ST-2. In step ST-2, it is determined whether the DTMF signal has been decoded,
If NO, return to step ST-1; if YES,
The process moves to step ST-3. In step ST-3,
After setting the strobe pulse ST supplied from the decoder 15 to the control device 13 to a high level, the process moves to step ST-4. In step ST-4, a data signal indicating the telephone number is stored in the RAM 17, and then the process moves to step ST-5. In step ST-5, it is determined whether the erase switch 26 has been turned on. If NO, the process moves to step ST-6; if YES, the process moves to step ST-7. In step ST-6, timer (timer 2) 2
3, it is determined whether one hour has been counted, and if YES, the process moves to step ST-7; if NO, the process moves to step ST-7.
- Return to 5. In step ST-7, the data signal indicating the telephone number stored in the RAM 17 is erased. In the above explanation, for the sake of simplicity, we will use the timer (timer 1).
The explanation was made assuming that there is no 22.

Next, referring to the flowchart of FIG. 3, the operation of reading out a data signal indicating a telephone number stored in the RAM 17 and automatically making a call to that telephone number under the control of the control device 13 will be described. First, in step ST-1, it is determined whether the transmission switch 24 is turned on, and if YES, the process moves to step ST-.
If NO, the process returns to step ST-1. Step ST-
In step ST-2, after reading out the data signal indicating the telephone number stored in the RAM 17, the process moves to step ST-3. In step ST-3, the data signal indicating the telephone number is converted into a DTMF signal by the encoder 16, and then the process moves to step ST-4. In step ST-4, the hook switch 2 is turned on and the DTMF signal is sent to the telephone line.

[0014]

According to the present invention described above, the storage means 1 stores a selection signal of a predetermined telephone number from a telephone of the other party.
7, and selection signal sending means 13 and 16 for reading out a selection signal for a predetermined telephone number from the storage means 17 and automatically sending it out when there is a request to make a call to the predetermined telephone number.
Therefore, it is possible to easily make a call to a telephone number obtained during a telephone call without making a mistake.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Figure 2] Flowchart of Example (1)

[Figure 3] Flowchart of Example (2)

[Explanation of symbols]

8 Speech Network 13 Control device 15 DTMF decoder 16 DTMF encoder 17 RAM 21 Display device 22 Timer (timer 1) 23 Timer (Timer 2) 24 Send switch 25 Registration switch 26 Erase switch

Claims (1)

[Claims] 1. Storage means for storing a selection signal of a predetermined telephone number from a telephone of a called party, and selection of the predetermined telephone number from the storage means when there is a request to make a call to the predetermined telephone number. 1. A telephone set comprising selection signal sending means for reading out and automatically sending out a signal.