JPH04179356A - Codeless telephone set - Google Patents

Abstract

PURPOSE:To learn an important matter even if a reception response operation is not executed in a transfer destination by permitting the sound enlargement means of the transfer destination to utter the important matter from a transfer source at the time of line wire/extension transfer between a master unit and a slave unit. CONSTITUTION:At the time of line wire/extension transfer between the master unit and the slave unit, a sound signal from the transfer source can be uttered in sound in the transfer destination. When the user of the opposite shave unit does not respond within previously specified time, the control part 26 of the slave unit establishes a channel in a radio communication part 25. At the same time, the control part 26 of the slave unit operates a speaker amplifier circuit 35 to enlarge sound transmitted from the microphone of the handset of the master unit through the speaker amplifier circuit 35. Thus, the user of the shave unit can directly hear the sound signal received from the master unit as sound and the important matter and the like can directly be learnt without executing the reception response operation.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a cordless telephone, particularly a cordless telephone with a transfer function, which comprises a base unit connected to a telephone line and a slave unit connected to the base unit via a wireless line. When transferring an external line or internal line, the transfer source uses the amplification means to make the transfer destination speak the message, thereby making it possible to know the message without having to perform a reception response operation at the transfer destination. Regarding telephones.

[Prior Art] Conventionally, cordless telephones of this type with a transfer function are known, such as those shown in FIGS. 5 and 6, for example.

FIG. 5 is a block diagram showing the configuration of a base unit of a conventional cordless telephone, and FIG. 6 is a block diagram showing the configuration of a slave unit of a conventional cordless telephone.

In Fig. 5, the base unit of a conventional cordless telephone includes a diode bridge circuit (10) connected to the input/output terminals (101) and (102) of the telephone line, and a line closing switch that closes and releases the telephone line. (11), a line control circuit (12) that controls opening and closing of the telephone line, a hook switch (13), a control unit (14) that controls the entire base unit of the cordless telephone, and a control unit (14). In response to instructions from the line control circuit (121), the dial key (15) for controlling and dialing, the key switch (16) consisting of dial keys, function keys, etc., and the pending melody and DTM F Call circuit (17) that sends to the line
and is connected to the communication circuit (17) for voice communication.
(1g), a melody IC unit (19) that generates a melody on hold, an antenna (20), a wireless communication unit (21) that performs wireless communication with the handset, and a a communication control unit (22) that connects and controls the telephone system circuit and the wireless communication unit (21) and controls wireless communication with the handset;
Ringer circuit (23) that rings when calling an internal/external line
It is composed of.

Next, in FIG. 6, which shows a program diagram of a handset of a conventional cordless telephone, the handset of a conventional cordless telephone has an antenna (24) and a wireless communication section (25) that performs wireless communication with the base. , a control unit (26) that controls wireless communication and the entire handset, a key switch (27) consisting of dial keys, function keys, etc., and a ringer circuit (28) that sounds when an internal or external call arrives. , a receiver amplifier circuit (29) that amplifies signals such as audio from the base unit, a receiver (30) that converts the output of the receiver amplifier circuit (29) into audio and amplifies it to the outside, and a microphone (31); It is composed of a battery (32) that supplies power to each circuit of the slave unit.

Communication between the handset and the base unit is performed by the wireless communication unit (25) receiving wireless radio waves via the antenna (24), and after converting the radio waves into electrical signals by the wireless communication unit (25), The signal is amplified by the receiver amplifier circuit (29) and output to the outside by the receiver (30).

On the other hand, the voice picked up by the microphone (31) is wirelessly transmitted to the base unit via the wireless communication unit (25) and antenna (24), and a voice call is performed with the base unit. .

Next, the operation of the conventional cordless telephone configured as described above when calling an extension will be explained.

First, when making an extension call, when you enter the extension number of the other party's handset from the key switch (16) on the base unit for making an extension call, the control unit (14) detects this and sends it to the communication control unit (22). Instruct the person to make a call. Communication control unit (22)
activates the wireless communication unit (21), communicates with the wireless communication unit (25) of the partner handset, and establishes a control channel.

On the other hand, after the control channel is established, the controller (26) of the handset receives the incoming call from the base and rings the ring circuit (28). In response, when the user of the handset responds to the reception using the key switch (27) of the handset, the control unit (14) of the base unit responds.
) and the controller (26) of the handset establish a communication channel and enter an extension communication state.

If the user of the called handset does not respond due to being absent, etc., the call will continue until the user performs an operation to cancel the extension call on the base unit.

In addition, when calling an extension when transferring an external line,
Leave the line closing switch (11) in the closed state to maintain the outside line hold state, and play the melody sound to the melody IC section (
19) to the telephone line, the process is the same as in the case of the extension call described above. In this case, if an extension call cancellation operation is performed on the base unit, the base unit will return to the external line hold state.

Further, regarding another example of a conventional telephone with a transfer function of this kind, for example, Japanese Patent Laid-Open No. 63-303547
As shown in , even if there is no one at the transfer destination after the transfer operation, the transfer source's operation allows the transfer source's handset to retransmit the call, allowing the transfer source's handset to respond to outside calls. , Japanese Patent Application Laid-Open No. 1-151343, the base unit is equipped with amplification means, and by operating a key switch on the handset, a hold tone is transmitted to the telephone line, and the hold tone is amplified by the amplification means. Cordless telephones are known that can notify people around the base unit of a transfer request from the slave unit to the base unit.

[Problems to be Solved by the Invention] However, with conventional cordless telephones, when calling an extension, it is not possible to convey the business unless the other party answers, and when transferring an external call to another extension, , there was a problem in that if the other party did not answer for a long time, the other party would be put on hold for an extended period of time.

In addition, in the case of JP-A No. 63-303547, when there is no one at the forwarding destination, it is impossible to respond forever, which solves the problem that the caller who is on hold with an outside line is kept waiting again. Therefore, by operating a key switch on the transfer source, the call is retransferred to the transfer source's handset, allowing the transfer source's handset to respond to the outside line.
For example, even if there is someone at the forwarding destination, there may be cases where you do not want to answer the call depending on the matter or the caller. Kaisho 6
3-303547 was not effective in such cases.

Furthermore, in the case of JP-A-1-99352, the base unit is equipped with amplification means, but by operating a key switch on the handset, a hold tone is transmitted to the telephone line, and the hold tone is amplified by the amplification means. This only allows people around the base unit to be notified of a transfer request from the slave unit to the base unit, so problems such as not being able to communicate the details of business matters etc. using normal voice, etc. There was a problem in that the machine did not have amplification means, so it was a one-way communication from the child unit to the parent unit.

The present invention has been made in order to solve the above-mentioned problems, and when transferring an external line or extension between a base unit and a slave unit, the information from the transfer source is made to be uttered by the amplification means of the transfer destination. By doing so, it is an object of the present invention to provide a cordless telephone that allows the user to know the business matters, etc., without having to perform a reception response operation at the forwarding destination.

[Means for Solving the Problems] In order to achieve the above object, the cordless telephone according to the present invention is such that the base unit and the slave unit each use amplification means separate from the receiver of the handset, so that the base unit and the slave unit can communicate with each other. External line between planes/
At the time of extension transfer, the audio signal from the transfer source can be audible at the transfer destination using the loudspeaker means.

[Operations] Therefore, according to the cordless telephone of the present invention, it becomes possible to know the business matters, etc. without performing a reception response operation at the forwarding destination.

[Example code] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a base unit of a cordless telephone according to the present invention, and FIG. 2 is a block diagram of a slave unit of a cordless telephone according to the present invention.

In FIG. 1, the base unit of the cordless telephone of the present invention has a diode bridge circuit (1o) connected to the input/output terminals (101) and (102) of the telephone line, and a line closing circuit that closes and releases the telephone line. A switch (11), a line control circuit (12) that controls opening and closing of the telephone line, a hook switch (13), a control unit (14) that controls the entire base unit of the cordless telephone, and a control unit (14). ) etc., a dial key (15) that controls the line control circuit (12) and performs dialing operations, a key switch (16) consisting of dial keys, function keys, etc., and a melody on hold.
a telephone circuit (17) that transmits and DTMF to the line, a handset (18) that is connected to the telephone circuit (17) and performs a voice call, and a melody-1 that generates a melody while on hold.
0 unit (19), an antenna (20), a wireless communication unit (21) that performs wireless communication with the handset, and a telephone system circuit of the base unit and the wireless communication unit (21) for connection and control; A communication control unit (22) that controls wireless communication with the handset, a ring ring circuit (23) that sounds when calling an extension or outside line, and a speaker amplifier circuit (33) that amplifies the audio signal from the base phone.
It is comprised of a loudspeaker (34) that amplifies the audio signal from the base unit as sound to the outside.

Next, in FIG. 2 showing a block diagram of the handset of the cordless telephone of the present invention, the handset of the cordless telephone of the present invention includes an antenna (24) and a wireless communication section (25) that performs wireless communication with the base phone. , a control unit (26) that controls wireless communication and the entire handset, a key switch (27) consisting of dial keys, function keys, etc., and a ringer circuit (28) that sounds when calling an internal or external line. , a receiver amplifier circuit (29) that amplifies the audio signal from the base unit, a receiver (30) that converts the output of the receiver amplifier circuit (29) into sound and amplifies it to the outside, a microphone (31), and the slave unit. A bath battery (32) that supplies power to each circuit, and a speaker amplifier circuit (35) that amplifies the audio No. 15' from the handset.
It consists of a loudspeaker (36) that amplifies the audio signal from the handset to the outside as sound.

Communication with the base unit of the handset is performed by the radio communication unit (25) receiving radio waves via the antenna (24), and after converting the radio waves into electrical signals by the radio communication unit (25). , is amplified by the receiver amplifier circuit (29), and outputted to the outside by the receiver (30).

On the other hand, the voice picked up by the microphone (31) is wirelessly transmitted to the base unit via the wireless communication unit (25) and antenna (24), and a voice call is performed with the base unit. .

Next, the operation of the cordless telephone of the present invention constructed as described above regarding extension calls will be explained using the flowchart of FIG. 3 showing the control procedure for the base unit and handset.

First, when making an extension call, enter the extension number of the other party's handset from the key switch (16) on the base unit for making an extension call, and the control unit (14) detects this and sends the call to the communication control unit (22). A call instruction operation is performed for the call. Communication control unit (2
2) activates the wireless communication unit (21) and performs control to establish a control channel by communicating with the wireless communication unit (25) of the partner handset (step 51).

On the other hand, what is the advantage of a slave unit? The B part (26) is a wireless communication part (
21), a control channel is established in response to an incoming extension call from the base unit, and then the linker circuit (28) is activated to notify the user of the slave unit of the extension call (step 52).

When the user of the handset responds with the key switch (27) (step 53), the control unit (14) of the base unit and the communication control unit (26) of the handset establish a communication channel and enter an extension call state ( Step 59). Thereafter, when the extension call ends and an extension termination operation is performed (step 60), the handset and base unit disconnect the control channel and the call channel, respectively, and end the call (step 61).

If the user of the other handset does not respond within a predetermined time (step 53), the controller of the handset (26)
causes the wireless communication unit (25) to establish a communication channel (step 55). At the same time, the control unit (26) of the handset operates the speaker amplifier circuit (35) and transmits the audio transmitted from the microphone of the handset (18) of the base unit to the loudspeaker ( 36) to amplify the sound (step 56). As a result, the user of the slave unit can directly listen to the audio signal received from the base unit as audio without having to perform a reception response operation.
Therefore, you will be able to directly know the business matters, etc.

Therefore, depending on the content of the business and the caller, the call may be ignored or accepted.

That is, after directly listening to the audio signal received from the base unit as voice, if the user of the slave unit performs a response operation using the key switch (27) (step 57), the normal receiver (3
0) and the microphone (31), and the speaker amplifier circuit (35) is stopped to stop loudspeaker amplification (step 58), or if the call is not answered within a predetermined time (step 62). ), the speaker amplifier circuit (35) is stopped to stop loudspeaker amplification, and both the control channel and the call channel are released to end the extension call (step 62).

In the above, we have described the case of transferring an internal line call, but the flowchart shown in Figure 4 is used to explain the case where an internal call is placed on hold during an external line call, and then the external line on hold is transferred to another extension. I will explain.

If the base unit is making an outside line call, the line control circuit of the base unit (
12) operates the line closing switch (11) to close the telephone line. Here, when the user of the main unit performs an extension calling operation using the key switch (16) (step 71), the control unit (14) or the key switch (16)
Detects the signal from the melody IC section (19), sends the melody sound from the melody IC section (19) to the telephone line via the telephone communication circuit (17), and maintains the line closing switch (11) in the closed state. . Further, the control unit (14) temporarily disconnects the I/end set (18) from the telephone line, and
For internal calls/%nd cents (18) to the Wireless Communications Department (
21) via the communication circuit (17).

Thereafter, the control unit (14) instructs the communication control unit (22) to call the handset that is the target of the extension call (step 72). The subsequent operations are the same as those for the extension call, and the contents are shown in steps 52 to 63.

In addition, when further transferring the outside line from the base unit to the slave unit, the user of the base unit operates the key switch (16) to instruct the outside line transfer, and the control unit (14) transfers the call circuit (
17), mute the handset (18), connect the telephone line and the wireless communication section (21), and listen to the voice received from the handset via the antenna (20) and the wireless communication section (21). The handset is placed in an outside call state by transmitting to the telephone line via the telephone call circuit (17), the line closing switch (11), and the diode bridge circuit (10) (step 73).

At the same time, the Melody IC section (1
9) is stopped from being sent to the telephone line via the communication circuit (17) (step 74).

It can be seen that by the above operation, it is possible to transfer an external line after calling an internal line.

Furthermore, in the above-described embodiment of the present invention, the case where the parent device calls the child device is described, but it can be easily inferred that it is also possible to call the parent device from the child device. In this case, in Figure 1, the speaker amplifier circuit (3
3) is driven, and the audio signal from the slave unit is transmitted directly to the user of the base unit through the loudspeaker (34).

[Effects of the Invention] As explained above, according to the cordless telephone of the present invention, when an external line or extension line is transferred between the base unit and the handset, the business from the transfer source is audible by the amplification means of the transfer destination. This has the effect that it becomes possible to know the business matters, etc. without having to perform a reception response operation at the transfer destination.

[Brief explanation of drawings]

FIG. 1C≠A block diagram of a base unit of a cordless telephone showing an embodiment of the present invention, FIG. 2 a block diagram of a handset of a cordless telephone showing an embodiment of the present invention, and FIG. 3 FIG. 4 is a flowchart showing the control procedure of the base unit and handset regarding operations related to extension calls in a cordless telephone. FIG. 5 is a block diagram of a base unit of a conventional cordless telephone, and FIG. 6 is a block diagram of a slave unit of a conventional cordless telephone. In the figure, (10) is a diode bridge circuit, (1
1) is a line closing switch, (12) is a line control circuit, (
13) is the hook switch, (14) is the control unit of the base unit, (
15) is a dialer circuit, (16) is a key switch, (1
7) is a telephone communication circuit, (18) is a handset, (19) is a melody IC section, (20) is an antenna, (21) is a wireless communication section, (22) is a communication control section, and (23) is a ringer.
circuit, (24) is an antenna, (25) is a wireless communication section, (
26) is the control unit of the handset, (27) is the key switch, (2
8) Haringer circuit, (29) is Lenha amplifier circuit,
(30) is the speaker amplifier circuit, (31) is the microphone, (32) is the battery, (33) is the speaker amplifier circuit of the base unit, (3
4) is the loudspeaker of the base unit, (35) is the speaker amplifier circuit of the slave unit, (36) is the loudspeaker of the slave unit, and (101) is the loudspeaker of the slave unit.
). (102) is an input/output terminal of a telephone line. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] A cordless telephone with a transfer function comprising a base unit connected to a telephone line and a slave unit connected to the base unit via a wireless line, wherein the base unit and the slave unit are each a receiver of a handset. What is claimed is: 1. A cordless telephone set having a sound amplification means separate from the above, and capable of making an audio signal from a transfer source audible at a transfer destination using the sound amplification means when an external line or extension line is transferred between a base unit and a slave unit.