JPH0511601U - Telephone - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a telephone that can accept an incoming call from an outside line even while receiving / transmitting an extension call. [Structure] A telephone set includes an outside line transmission / reception unit that performs transmission / reception operation for an outside line, an extension transmission / reception unit that performs transmission / reception operation for an extension line, a temporary outside line reception unit that temporarily receives an incoming call from an outside line, and an extension line reception unit. When a call is received from an outside line during the transmission / reception operation, the control unit controls the temporary outside line receiving unit so as to receive the call.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a telephone, and more particularly to a telephone having an extension transmission / reception function in addition to an outside transmission / reception function.

[0002]

[Prior Art]

 There is a so-called cordless answering machine as a telephone having an extension transmission / reception function and an absence recording function. The cordless answering machine is mainly composed of a master unit equipped with a handset and a tape recorder for answering machine, and a slave unit capable of wirelessly transmitting and receiving with the master unit. The cordless answering machine enables extension calls between the base unit and the handset, and records the contents of the call received during absence in a tape recorder and hears the content from the base unit or the handset after returning home. Is possible.

[0003]

[Problems to be solved by the device]

 In the above conventional configuration, if an incoming call from an outside line is received while using the extension line, the telephone set is busy and cannot accept the incoming call from the outside line.

An object of the present invention is to provide a telephone that can receive an incoming call from an external line even when the internal line is being used.

[0005]

[Means for Solving the Problems]

 A telephone according to the present invention comprises an outside line transmission / reception unit for performing transmission / reception operation for an outside line, an extension transmission / reception unit for transmission / reception operation for an extension line, a temporary reception unit for temporarily receiving an incoming call from an outside line, and a control unit It has and. The control unit controls the temporary outside line receiving unit so as to receive a reception request when an incoming call from an outside line occurs while the extension receiving unit is transmitting and receiving.

[0006]

[Action]

 In the telephone according to the present invention, the outside line transmission / reception unit performs a transmission / reception operation for an outside line. In addition, the extension transmission / reception unit performs transmission / reception operation for the extension. When an incoming call is made from an outside line while the extension transmission / reception unit is performing a transmission / reception operation with respect to the extension, the control unit controls the temporary outside line reception unit to receive the call. Therefore, even during an extension call, an incoming call from the outside line can be received, and the operation of the temporary outside line reception unit and the extension call can be performed in parallel.

[0007]

【Example】

 FIG. 1 shows a telephone according to an embodiment of the present invention. This telephone is composed of a main telephone (master) 1 and a cordless telephone (slave) 2.

The main telephone 1 is mainly composed of a telephone main body 3 and a handset 28 arranged on the side thereof. On the back side of the main body 3, a tape recorder 9 for recording an absence is arranged. On the side of the body 3 opposite to the handset 28, there is provided an antenna 8 for transmission / reception, which can be expanded / contracted and rotated.

A dial button 4, a function button 5, a touch button 6 and an LCD (liquid crystal display) 7 are arranged on the upper surface of the main body 3 in this order from the front. The dial button 4 is composed of twelve push buttons 0 to 9, asterisks, and sharps arranged in 3 columns by 4 rows. To the right of the dial button 4, a push button 15 for setting hooks, tones, etc. is arranged.

The function button 5 includes buttons for setting the time, setting the recorded message, and stopping the reproduction of the recorded message. The one-touch buttons 6 include a button for registering the telephone number in shortening and a button for setting the tape recorder 9 for fast forward and rewind. The LCD 7 is used to display the telephone number of the called party or the telephone number of the shortened registration.

The cordless telephone 2 has a structure in which a handset is erected, and on one side thereof, a dial button 10, a function button 11 and a transmission / reception switch 12 similar to those of the main telephone 1 are arranged. . An antenna 13 for transmission and reception is provided above the cordless telephone 2. The lower part of the cordless telephone 2 is supported by a charger 13 for charging the cordless telephone 2.

Next, the configuration of the control system of the telephone will be described. In FIG. 2, the CPU 20 is connected to the speech network unit 26, the connection circuit 29, the message unit 30, the handset transmitter / receiver 31, the tape recorder 9 and the hook switch 37, respectively. The speech network unit 26 has a basic function necessary for a call, amplifies the signal from the handset 28 and sends it to the line, and also extracts and amplifies the received signal from the line to drive the handset 28. To do. The connection circuit 29 is interposed between the speech network unit 26, the message unit 30, the handset transmitter / receiver unit 31, and the tape recorder 9, and connects the line and the speech network unit 26 to each unit 30, 31, 9. Connection and cross talk between The message section 30 is for storing a message to the other party when the message is recorded, and is composed of, for example, a semiconductor memory. The cordless telephone set 2 is used for transmitting and receiving between the main telephone 1 and the cordless telephone 2. The tape recorder 9 is for storing the contents of the recorded message.

The speech network unit 26 is connected to a handset 28, a DP (Dial Phone) switching unit 25, and a dialer unit 27, respectively. In the case of DP transmission, the dialer unit 27 produces a DP signal corresponding to the input of the dial button 4, turns the DP switching unit 25 on and off, and turns the DC loop on and off. In the case of DTMF transmission, a DTMF (Dual Tone Multiple Frequency) signal is generated, the DTMF signal is given to the speech network unit 26, and the DTMF signal is transmitted through the line. The DP switching unit 25 turns on / off the DC loop as described above, and is connected to the line network via the hook switch 21.

The hook switch 21 is switched to the upper side in the drawing when the handset 28 is placed, and is connected to the ringer unit 23. The ringer unit 23 is for operating the speaker 22 and operates the speaker 22 1 to emit a ringing tone when an incoming call from the line occurs. Further, the hook switch 21 is switched to the lower side in the figure when the handset 28 is picked up and when the answering machine or the talk / receive button of the cordless telephone 21 is operated. The CPU 20 switches the hook switch 21 when switching to the answering machine or when the handset button of the cordless telephone 2 is pressed.

In FIG. 3, the speech network unit 26 includes a switch 34 for switching between a reception signal from the line and a reception signal via the connection circuit 29, a transmission signal from the handset 28, and a connection signal from the connection circuit 29. A switch 35 for switching between the transmission signal and the transmission signal. One input end of the switch 34 is connected to the line via an amplifier, and the other input end is connected to a crosstalk section 40 described later via an amplifier. The output end of the switch 34 is connected to the earpiece of the handset 28 via an amplifier. The output terminal of the switch 35 is connected to the line via an amplifier. Further, one input end of the switch 35 is connected to the switches 43 and 44, which will be described later, and the transmitting section of the handset 28 via an amplifier, and the other input end is connected to the crosstalk section 42, which will be described later, via the amplifier. It is connected to the. These switches 34 and 35 are controlled by the CPU 20 and are normally switched to the side for selecting the reception signal and the transmission signal from the connection circuit. The switches 34 and 35 are switched to the opposite side at the time of power failure, and directly connect the handset 28 and the line without the connection circuit 29.

The line is connected to the connection circuit 29 and the tape reader 9 via a balancing network (BN) 36. The connection circuit 29 includes three crosstalk units 40, 41, 42 and eight switches 43 to 50. The input end of the crosstalk unit 40 is connected to the line via the switch 45 and is also connected to the slave transmission / reception unit 31 via the switch 49. The output end of the crosstalk unit 40 is connected to one input end of the switch 34 via the amplifier of the speech network unit 26 as described above. The input end of the crosstalk unit 41 is connected to the line via the switch 46, and is also connected to one input end of the switch 35 of the speech network unit 26 via the switch 43 as described above. The output end of the crosstalk unit 41 is connected to the slave transmission / reception unit 31. The input end of the cross talk unit 42 is, as described above, one input end of the switch 35 of the speech network unit 26 via the switch 44, the tape recorder 9 via the switch 47, and the message unit 33 via the switch 48. Are connected to the slave transmission / reception unit 31 via the switch 50, respectively. The input end of the cross talk section 42 is also connected to the dialer section 27. The output end of the crosstalk unit 42 is connected to the other input end of the switch 35 1 via the amplifier of the speech network unit 26 as described above.

Next, the operation of the control system will be described. In FIG. 4, initial setting is performed in step S1. In this initial setting, the switch 44 and the switch 45 are turned on to directly connect the line and the handset 28. In step S2, it is determined whether an incoming call has occurred. In step S3, it is determined whether or not a call is generated. In step S4, it is determined whether an extension call has occurred. In step S5, it is determined whether or not the voice mail button of the function button 5 has been pressed. In step S6, it is determined whether another process is designated. If another process is not specified in step S6, the process returns to step S2.

When it is determined in step S2 that an incoming call has occurred, the process proceeds to step S7. In step S7, the incoming call processing shown in FIG. 5 is performed. In the incoming call processing, it is determined in step S21 whether or not an extension call is in progress. During the extension call, the switch 49 and the switch 43 are on. At this time, all the other switches in the connection circuit 29 are in the off state. In step S22, it is judged whether or not the recorded message is set. In step S23, it is determined whether the number of times of calling exceeds 20 times. If an extension call is being made in step S21, the absence recording is set in step S22, or if the number of calls exceeds 20 in step S23, the process proceeds to step S27.

In step S27, the recorded message is started. At this time, the switch 48 is turned on, and the message from the message unit 33 is transmitted to the line via the mixed talk unit 42 and the switch 35 of the speech network unit 26. Also, after a predetermined time, the other party's message from the line is recorded on the tape recorder 9. When step S27 ends, the process returns to the main routine.

On the other hand, when the number of times of calling does not exceed 20 in step S23, the process proceeds to step S24. In step S24, it is determined whether or not the line has been connected, that is, whether or not the hook switch 21 has been switched to the lower side. While the hook switch 21 is not switched to the lower side, the process returns to the main routine. When the hook switch 21 is switched to the lower side, the process proceeds to step S25. In step S25, a call is made by transmitting to the line and receiving from the line. In step S26, the hook switch 21 is switched to the upper side for disconnection, and the process returns to the main routine.

If it is determined in step S3 of FIG. 4 that a call has originated, the process proceeds to step S8. In step S8, a calling process is performed.

If it is determined in step S4 that an extension call has occurred, the process proceeds to step S9. In the extension process of step S9, extension connection is first performed in step S31 as shown in FIG. This extension connection is realized by turning on the switches 43 and 49. As a result, the handset 28 and the handset transmitter / receiver 31 are connected.

In step S32, it is determined whether or not an incoming call from the line has occurred. When it is determined in step S32 that an incoming call from the line has occurred, the process proceeds to step S34. In step S34, an absence message similar to that in step S27 is started. When step S34 ends, the process proceeds to step S33. In step S33, it is determined whether the extension has been completed. This determination is made by switching the hook switch 21 of the master unit to the upper side or operating the transmission / reception button 12 of the cordless telephone 2. The process returns to step S32 until the extension ends. When the extension ends, the process returns to the main routine.

If it is determined in step S5 of FIG. 4 that the answering machine button has been pressed, the process proceeds to step S10. In step S10, the recorded message is set. When an answering machine is set, it will automatically be in an answering machine state when the ring tone sounds a predetermined number of times. If it is determined in step S6 that another process is designated, the process proceeds to step S11. In step S11, other processing such as registration / calling of the abbreviated number is executed.

As described above, in this embodiment, an incoming call from an outside line can be automatically recorded even during an extension call using the handset 28, and the extension line and the outside line can be parallel to each other. Can be used.

[Other Embodiments] In this embodiment, the cordless telephone is used as the cordless handset, but the present invention is not limited to the cordless telephone.

[0027]

[Effect of the device]

 In the telephone of the present invention, when an incoming call from an external line occurs during an extension call, the control unit controls the temporary external line receiving unit to receive the incoming call. Processing and extension transmission / reception can be performed in parallel, and an incoming call from an outside line can be accepted even during an extension call.

[Brief description of drawings]

FIG. 1 is an external perspective view of a telephone according to an embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of a control system.

FIG. 3 is a block diagram showing a configuration of a speech network unit and a connection circuit.

FIG. 4 is a flowchart of a main routine of a control system.

FIG. 5 is a flowchart showing the contents of incoming call processing.

FIG. 6 is a flowchart showing the contents of extension processing.

[Explanation of symbols]

 1 main telephone 2 cordless telephone 9 tape recorder 20 CPU 26 speech network section 28 handset 29 connection circuit

Claims (1)

[Claims for utility model registration] [Claim 1] An outside line transmission / reception unit for transmitting / receiving an outside line, an extension transmission / reception unit for transmitting / receiving an extension line, and a temporary reception of an incoming call from the outside line A telephone including: an outside line receiving unit; and a control unit that controls the temporary outside line receiving unit to receive the incoming call when an incoming call from the outside line occurs while the extension transmission / reception unit is performing a transmission / reception operation. .