JPH07123265B2 - Telephone - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone having a memory function capable of storing a plurality of telephone numbers.

2. Description of the Related Art Conventionally, a multifunction telephone or the like can store the telephone numbers of a plurality of stations.

The current for storing the phone number is often supplied from a built-in battery or a commercial power supply, but the current consumption of the built-in battery is reduced to prolong the service life or in the event of a power failure. In some cases, the operating current is supplied from the telephone line so that the telephone number can be stored.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the conventional telephone as described above, it is necessary to put the handset in the off-hook state in order to supply current from the telephone line to the internal circuit when storing the telephone number. And, even though the handset is off-hook and the line is closed, the dial signal is not sent to the telephone line, so after a while (about 30 seconds), a loud howla sound comes from the telephone line, which adversely affects the ears. There was a possibility of exerting. In addition, it is usual to store a plurality of telephone numbers in succession for storing the telephone number. In this case, since the telephone line remains closed for a longer time, the current supply may be stopped depending on the exchange. In some cases, the memory operation could not be completed. In particular, a person who has just purchased a new telephone tends to have the above-mentioned problems because it takes extra time to memorize a telephone number, which is an unfamiliar operation while looking at an instruction manual.

In view of the above conventional problems, it is an object of the present invention to provide a telephone that does not generate a loud volume howler sound or stop the supply of power from a telephone line even when storing a plurality of telephone numbers. And

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention opens and closes the telephone line by temporarily opening the telephone line and reclosing it after a predetermined time when a storage operation of a telephone number is performed. A binding means was provided.

Operation According to the present invention, since the line is once opened every time the storage operation of the telephone number is performed by the above-mentioned configuration, it is not necessary to keep the telephone line closed for a long time.

Embodiment An embodiment of a telephone according to the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of an embodiment of a telephone according to the present invention. In FIG. 1, 1 is a telephone line, 2a is a hook switch, and has a switch 2b which works together. Reference numeral 3 is a rectifying bridge diode, and 4 is a dial signal sending means having a control input terminal, which is turned on / off by a control signal and sends a dial pulse to the telephone line 1. 5
Is a power supply means and generates a voltage (5V) by the current supplied from the telephone line. Reference numeral 6 denotes a transmission / reception circuit for amplifying a reception signal coming from the telephone line 1, listening at the reception unit 8, amplifying a transmission signal from the transmission unit 7 and transmitting it to the telephone line 1. 9 is a dial button, which is "0"-
It is composed of 12 switches of "9", "*", and "#". 10 is a memory button to be operated when storing and reading a telephone number in the memory means described later, 11 is a timer means that generates an output signal when 1.6 seconds has elapsed, 12 is a control means that controls the entire device, Composed of computers. Reference numeral 13 is a storage means for storing a telephone number, which is connected to the control means 12 by an address control line, a data line, and a chip select, write / read control line, and a complementary metal oxide film type transistor (C -MO
S) static read / write memory (RAM) is used. 14, 15 and 16 are diodes, and 17 is a battery (4.5V) for holding the memory of the telephone number.

The operation of the telephone configured as described above will be described below with reference to the flowchart of FIG.

First, the case of making a call by the usual usage will be described. When the handset including the transmitter 7 and the receiver 8 is off-hook (STEP 1), the hook switch 2a and the switch 2b are turned on, the telephone line 1 is closed, and the line current is diode bridge 3 and dial signal transmitting means 4
Is applied to the power supply means 5 via. As a result, the power supply means 5 generates a voltage of 5V. The power supply voltage of 5V is supplied to the control means 12 via the transmitting / receiving circuit 6 and the diode 14.
Further, it is applied to the storage means 13 to be in an operating state. Then,
The control means 12 starts monitoring the dial button 9 and the memory button 10 (STEP2, STEP3). When the user inputs the telephone number of the other party, the process proceeds to STEP 4 and the dial signal is sent,
The telephone number is transmitted to the telephone line 1 by the dial signal transmitting means 4. If the other party responds, the call state (STEP 5) is entered, and the transmitter / receiver circuit 6, the transmitter 7, and the receiver 8 can talk with the partner. When the call ends, the handset goes on hook. The hook switch 2a and the switch 2b are turned off, the telephone line 1 is opened, and the standby state is restored.

Next, a case of storing a telephone number will be described. When the handset is taken off-hook (STEP 1), the hook switch 2a and the switch 2b are turned on, the telephone line 1 is closed, and the line current is applied to the power supply means 5 via the diode bridge 3 and the dial signal sending means 4, and the power is supplied. The supply means 5 generate a voltage of 5V. The power supply voltage of 5V is supplied to the control means 12 via the transmitter / receiver circuit 6 and the diode 14.
Further, it is applied to the storage means 13 to be in an operating state. Then,
The control means 12 starts monitoring the dial button 9 and the memory button 10 (STEP2, STEP3). When the user operates the memory button 10, the process proceeds to STEP 7, and the control means 12 sets the memory holding battery 17
Check for voltage. The battery 17 is connected to the power supply terminal V of the control means 12 via the diode 15 and is connected to the power supply terminal V of the storage means 13 and the input terminal P4 of the control means 12 via the diode 16. Here, the power supply means 5
Since the voltage supplied by the battery 15 is set higher than the voltage of the battery 17, the diode 15 is reverse-biased and turned off, so that the current of the battery 17 is controlled by the control means 12.
Not consumed by. If the battery 17 is not present, the input terminal P4 of the control means 12 becomes the logic level "L", and if this is detected, the process returns to STEP2. When the battery 17 is present, the input terminal P4 of the control means 12 becomes the logic level "H", so if this is detected, the process proceeds to STEP8, and the dial button 9 starts to be monitored, especially the numeric buttons "0" to "9". "" Was pressed (STEP8) or the "#" button was pressed (S
Monitor TEP10).

When the "#" button is pressed, the process proceeds to STEP 11 to enter the telephone number storage mode. Here, the user presses any one of the numeric buttons "0" to "9" of the dial button 9 in order to specify the station for storing the telephone number. Then, the telephone number to be stored is input by the dial button 9. When all digits have been entered, press the memory button 10. (STEP12, STEP
13). Then, the control means 12 outputs the address signal corresponding to the previously designated station and the data representing the telephone number to be stored from the terminals P7 and P8, respectively, the chip select signal from the output terminal P5, and the write control signal from the output terminal P6. Is output and the telephone number is stored in the storage means 13 (STEP1
Four). After that, the control means 12 turns off the dial signal transmission means 4 to open the telephone line 1 (STEP 15) and activates the tire means 11. During this time, since the telephone line 1 is open, power is not supplied from the telephone line 1, but the battery
The voltage of 17 is applied to the control means 12 via the diode 15 to continue the operation. After 1.6 seconds, the timer means 11 outputs an output signal to the control means 12 (STEP 1
6). In response to this, the control means 12 turns on the dial signal transmission means 4 again and closes the telephone line 1 (STEP
17). If you want to continue to memorize, repeat the above operation,
If you want to finish, go on-hook (STEP6). As a result, the hook switch 2a and the switch 2b are turned off, the telephone line 1 is opened and put in a standby state, and the ground terminal G of the control means 12 is also disconnected from the circuit ground, so that the current of the battery 17 is not consumed and exclusively. It is used for holding the memory of the memory means 13. Since the time required to store one telephone number is approximately 10 seconds, the telephone line 1
Is released within 20 seconds after off-hook. Therefore, the howrah sound does not arrive.

Next, a case will be described in which the stored telephone number is read and a call is made by a shortened operation. When the handset is off-hook (STEP 1), the hook switch 2a is turned on and the telephone line 1 is closed. The line current is applied to the power supply means 5 through the diode bridge 3 and the dial signal transmission means 4, and the power supply means 5 generates a voltage of 5V and sends it.
The receiving circuit 6, the control means 12, and the storage means 13 are in the operating state. Then, the control means 12 starts monitoring the dial button 9 and the memory button 10 (STEP2, STEP3). When the user operates the memory button 10, the process proceeds to STEP 7, and the control means 12 checks whether or not the voltage of the memory holding battery 17 is present. If the battery 17 is not present, the input terminal P4 of the control means 12 becomes the logic level "L", and if this is detected, the process returns to STEP2. When the battery 17 is present, the input terminal P4 of the control means 12 becomes the logic level "H", so if this is detected, the operation proceeds to STEP8,
Start monitoring the dial buttons 9, especially the number buttons "0"
~ Monitor whether "9" is pushed (STEP8) or "#" button is pushed (STEP10). The user presses any one of the number buttons "0" to "9" of the dial button 9 in order to specify the station in which the telephone number to be transmitted is stored, and the process proceeds to STEP 9 to enter the speed dial transmission mode. The control means 12 outputs an address signal, a chip select signal and a read control signal corresponding to the designated station from the output terminals P7, P5 and P6, respectively. Then, the storage means 13 outputs the data corresponding to the telephone number, and the terminal of the control means 12
Read from P8. The control means 12 outputs the dial data to the dial signal sending means 4, and the dial signal is output to the telephone line 1. If the other party answers, the call status (STEP
5), and the other party can talk using the transmitter / receiver circuit 6, transmitter 7, and receiver 8. When the call ends, the handset goes on hook. The hook switch 2 is turned off, the telephone line 1 is opened, and the standby state is restored.

EFFECTS OF THE INVENTION The present invention is provided with a line opening / closing means for temporarily opening a telephone line and reclosing it after a predetermined time when a telephone number storing operation is performed. Even if you go all at once, the telephone line will not be closed for a long time, a loud howling sound will be generated while the telephone number is being stored and the power supply from the telephone line will be stopped. It will not happen. Therefore, the memory operation is interrupted by the damage to the ears caused by a loud howler sound and the interruption of the current supply to the telephone line after the howler sound is transmitted.
It is possible to prevent inconveniences such as the loss of data that was input halfway.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a main part of an embodiment of a telephone of the present invention, and FIG. 2 is a flowchart thereof. 1 ... Telephone line 2 ... Hook switch 3 ... Bridge diode 4 ... Dial signal sending means 5 ... Power supply means 6 ... Sending / receiving circuit 7 ... Transmitter 8 ... Receiver 9 ... Dial button 10 …… Memory button 11 …… Timer means 12 …… Control means 13 …… Memory means 14, 15, 16 …… Diode 17 …… Battery

Claims (1)

[Claims] 1. A dial input means for inputting a telephone number, and a switch means for instructing to finish inputting each telephone number.
Storage means for storing the telephone number input by the dial input means, and operation by electric power from the telephone line when the telephone line is closed, and the dial input in response to the operation of the switch means. Writing means for writing the telephone number input by the means into the storage means; and when the writing means writes the telephone number in the storage means, the telephone line is once opened and closed after a predetermined time. A telephone equipped with an opening means.