JPH08107447A - Cordless telephone set - Google Patents

Abstract

PURPOSE: To more improve the convenience of the cordless telephone set. CONSTITUTION: A speech switching part 11 is provided at a first hand set A among plural hand sets, a second hand set B is composed of a radio interface part 6 and a speaking part 7, and speaking is made possible at the second hand set B by the speech switching part 11 provided at the first hand set A. Thus, since the second hand set B can be miniaturized and lightened and the second hand set B can be variously formed, convenience as a cordless telephone set 10 can be more improved.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. Fields of Industrial Application Conventional Technology (FIGS. 6 and 7) Problems to be Solved by the Invention Means for Solving the Problems (FIG. 1) Action (FIG. 1) Embodiments (FIGS. 1 to 5) Effects of the Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone, and can be applied to, for example, a cordless telephone having a plurality of cordless handsets used in a general telephone network.

[0003]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a cordless telephone 1 is composed of, for example, a master P and two slaves A and B. The parent device P includes a line interface unit (line I / F unit) 3 connected to the telephone line 2, a control unit 4, and a wireless interface unit (wireless I / F unit) 5. Each of the slaves A and B has a wireless interface section (wireless I / F section) 6, a call section 7 for making a call, and a call control section 8 for processing an outgoing signal and an incoming signal.
And a calling unit 9 for issuing a reception bell.

FIG. 7 shows a communication procedure (for making a call) in the cordless telephone 1 having such a configuration. When the slave A to make a call is turned off, the signal of the carrier frequency f0 is propagated from the slave A to the master P. When the parent device P confirms the signal, the parent device P transmits a signal of the carrier frequency f1 to the child device A, whereby the wireless link 100 is formed between the child device A and the parent device P. When the wireless link 100 is formed, activation 101 and transmission 102 between the master P and the network N
Protocol processing is performed.

The dial signal 103 from the slave unit A is transmitted to the master unit P through the control path at the carrier f0. The base unit P that has received the dial signal 103 forms a communication path with the telephone set of the called party according to the normal telephone processing 104 and 105. The ringing sound 105 from the network N is transmitted to the child device A as the calling signal 106 via the control unit 4 of the parent device P by the carrier f1. When the called party responds, the call path is set up, and the call signal 107 is received at the carrier frequency f1 and the call signal 107 is transmitted at the carrier frequency f0.

When switching from the handset A to the handset B during a call, a call signal 108 to the handset B is transmitted from the handset A to the base unit P by the carrier f0, and the base unit P to the handset B. Send a call signal of f1. As a result, a bell is emitted from the calling unit 9 of the handset B, and the handset B is turned off to form a wireless link 110 between the handset P and the handset B, and the radio link 100 with the handset A. Is released (109). Thereafter, the handset B can communicate with the called party in the same manner as the handset A by transmitting and receiving the call signal 111.

Further, as a method of realizing the hands-free function in the conventional cordless telephone 1, by improving the performance of the call receiving microphone of the call section 7 of the child devices A and B, such as the so-called "tebura cordless", There are a method of making a distance between the machines A and B and the speaker, and a method of connecting a cable to the slave machines A and B and using a head set.

[0008]

In the cordless telephone 1 of the related art, since the cordless handset A and the cordless handset B are both of the complete type as described above, the cordless handsets A and B are There was a problem that it was difficult to miniaturize. Also, in order to realize the hands-free function of the handset units A and B, it is necessary to be near the handset units A and B, so that the hands-free function in the original sense of being able to move around during a call cannot be realized. There was a problem.

The present invention has been made in consideration of the above points, and an object thereof is to propose a cordless telephone whose utility can be further improved.

[0010]

In order to solve the above problems, according to the present invention, a cordless telephone (10) having a plurality of handsets ((A), (B)) is provided with a wireless interface section (6). , Call section for making calls (7)
And a call control unit (8) for processing an outgoing signal and an incoming signal
A calling section (9) for issuing a reception bell, and a call switching section (11) for selecting which of the plurality of handsets ((A) and (B) is to call) The first handset (A), the wireless interface section (6), and the call section (7) for making a call, and the call switch section (11) of the first handset (A). A second slave unit (B) that enables a telephone call, a line interface unit (3) that performs protocol processing with the telephone line (2), a wireless interface unit (5), an outgoing signal and an incoming signal. And a call switching unit (11) for the first slave unit (A)
When the call switching signal sent from the mobile station is received, an information path is set between the second handset (B) and the information path set up between the first handset (A). A master unit (P) having a main control unit (13) for disconnecting and saving a control path
I decided to set and.

[0011]

A call switching unit (11) is provided in the first slave unit (A) of the plurality of slave units, and the second slave unit (B) is connected to the wireless interface unit (6) and the communication unit (7). And a call switching unit (11) provided in the first child device (A)
By making it possible to talk on the child device (B) of
Since the slave unit (B) can be made smaller and lighter and various forms of the second slave unit (B) can be realized, the usefulness as the cordless telephone (10) can be further improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, in which parts corresponding to those in FIG. 6 are designated by the same reference numerals, reference numeral 10 generally indicates a cordless telephone according to an embodiment of the present invention. In this cordless telephone 10, when the base unit P receives a call switching signal from the call switching unit 11 provided in the handset A, the base unit P sets an information path with the handset B and the handset A The information path set between and is cut and the control path is retained.

The cordless telephone 10 is composed of a base unit P (telephone body) and two handset units A and B. The base unit P includes a line I / F unit 3, a wireless I / F unit 5, It is configured by a call control unit 12 and a main control unit 13 that process an outgoing signal and an incoming signal. When the main control unit 13 receives the call switching signal from the call switching unit 11 of the handset A, the main control unit 13 sets an information path with the handset B and disconnects the information path with the handset A to perform control. It is designed to save the path.

The handset A has a wireless I / F section 6, a call section 7,
The call control unit 8, the calling unit 9, and the call switching unit 11 are included, and by switching the call switching unit 11, a cordless handset can be selected. Handset B
Is configured by the wireless I / F 6 and the call unit 7 so as to have only the call function, and the call switching unit 11 of the handset A.
Depending on the selection, the call becomes possible.

In the above configuration, the cordless telephone 1
The transmission procedure and the reception procedure in 0 will be described. First, at the time of making a call, the handset unit to be used for a call is determined by selecting the call switching unit 11 built in the handset unit A. FIG. 2 shows a communication procedure for making a call when the call switching unit 11 of the handset A is set to the handset A. As shown in FIG. 2, when the slave A is turned off, the signal of the carrier frequency f0 propagates to the master P. When the master P confirms this signal, it transmits a signal of the carrier frequency f1 to the slave A, whereby the wireless link 2 consisting of a control path and an information path between the slave A and the master P.
00 is formed. When the wireless link 200 is formed,
Protocol processing of activation 201 and transmission 202 is performed between the master P and the network N.

The dial signal 203 from the slave unit A is transmitted to the master unit P through the call control unit 8 of the slave unit A and the carrier f0 through the control path. The main control unit 13 of the parent device P that has received the dial signal 203 performs normal telephone processing 204, 2
In accordance with 05, a communication path is formed with the callee's telephone. The ringing tone 205 from the network n is the main control unit 13 of the parent device P.
Is transmitted to the handset A as a ringing tone 206 via the information path at the carrier frequency f1. When the called party responds, the communication path is set up, and the communication signal 207 is received by the carrier f1 and the communication signal 207 is transmitted by the carrier f0 on the information path.

When switching from the slave unit A to the slave unit B during a call, the switching unit 11 of the slave unit A is set to set the switching unit 11 of the slave unit A to the switching signal 208 from the switching unit 11 of the slave unit A.
Is sent out, and the switching signal 208 is the carrier frequency f.
When it is 0, it is transmitted to the master device P through the control path. Upon receiving the switching signal 208, the parent device P transmits a signal of the carrier frequency f1 to the child device B, forms a wireless link 210 between the child device B and the parent device P, and transmits an information path to the child device A. Only cut (209).

The handset B is a telephone communication unit 7 via the wireless I / F unit 6.
The wireless link 210 formed between the child device B and the parent device P forms only an information path because it is only a terminal.
The call signal 211 from the called party (call partner) is transmitted to the child device B at the carrier frequency f1 via the main control unit 13 of the parent device P, and the call signal 211 from the child device B is sent to the carrier frequency f.
When it is 0, the call is transmitted to the parent device P so that the child device B can talk. Regarding call control such as call cancellation or response to an incoming call during a call, the control path between the slave A and the master P is used by the slave A or the slave B is controlled. This can be achieved by turning on the installed fax switch (not shown).

When the call switching unit 11 of the handset A is set to the handset B, the call is made between the handset P and the handset A by turning off the handset A as shown in FIG. At the same time as forming the control path 300, the wireless link of only the information path 301 is formed with the handset B. When the wireless link is formed, protocol processing of activation 302 and transmission 303 is performed between the master P and the network N. Call control such as a dial signal is transmitted to the parent device P at the carrier frequency f0 via the call control unit 8 of the child device A. Base unit P that received this signal
The main control unit 13 of (1) forms a communication path with the telephone of the callee according to the normal telephone processing 304, 305.

A ringing tone 305 from the network N is transmitted to the child unit B as a ringing tone 306 through the main control unit 13 of the base unit P through the information path at the carrier frequency f1. When the called party responds, the call path is set up so that the call signal 307 can be received at the carrier frequency f1 and the call signal 307 can be transmitted at the carrier frequency f0 on the information path so that the handset B can talk. Become.

In order to switch the call from the handset B to the handset A, the call switching unit 11 of the handset A is set to the handset A. As a result, the call switching unit 11 transmits the switching signal 308 to the master P at the carrier frequency f0, and the master P receiving the switching signal 308 disconnects the information path with the slave B by the main controller 13. (309), call signal 31
By transmitting and receiving 0, it is possible to talk with the handset A, which was initially establishing the wireless link, through the information path.
The method of disconnecting the information path can be realized by the slave A as in the case of FIG. 2 or by turning on the fax switch mounted on the slave B.

Next, the case of reception will be described. First, the communication procedure when the call switching unit 11 is set to the slave A will be described. As shown in FIG. 4, when the parent device P receives the incoming signal 400 from the network N, the parent device P forms a wireless link 401 with the child device A. At this time, the parent device P detects whether the call switching unit 11 of the child device A is set to the child device A or the child device B.

That is, when the call switching unit 11 is set to the slave unit A, a switching signal 402 is transmitted from the call switching unit 11 to the master unit P, and the master unit P communicates with the slave unit A based on the switching signal 402. Form an information path. Base unit P is network N
The call signal 403 from the call bell 404 for the handset A
Is converted to and transmitted to the child device A. In the slave unit A, the calling bell 404 for the slave unit A is emitted, and by turning off the slave unit A, the call signal 405 is transmitted / received, and the slave unit A can talk. The method of switching the handset and ending the communication during a call are exactly the same as when making a call.

Next, the communication procedure when the call switching unit 11 is set in the handset B will be described. As shown in FIG. 5, when the parent device P receives the incoming signal 500 from the network N, the parent device P forms a wireless link 501 with the child device A. At this time, the parent device P detects whether the call switching unit 11 of the child device A is set to the child device A or the child device B. That is, when the call switching unit 11 is set to the child device B, the call switching unit 11 transmits a switching signal 502 to the parent device P, and the parent device P communicates with the child device B based on the switching signal 502. To form. The master P converts the call signal 504 from the network N into a call bell 505 for the slave B and transmits it to the slave A. In handset A, call bell 5 for handset B
05 is issued to turn off the handset A or turn off the fax switch mounted on the handset B, so that the call signal 506 is transmitted and received to enable the call. The method of switching the handset and ending the communication during a call are exactly the same as when making a call.

According to the above configuration, the handset B is composed of the wireless interface section 6 and the call section 7 so as to have only the call function, and the handset switching section 11 of the handset A switches the handset. By making it possible to talk on B, the handset B can be made smaller and lighter, and various forms of the handset B can be realized, so that the usefulness as a cordless telephone can be further improved. For example, the hands-free function can be easily realized by configuring the slave B with a wireless head set configuration.

In the above embodiment, the case where the cordless telephone 10 is composed of the parent device P and the two child devices A and B has been described, but the present invention is not limited to this, and the cordless telephone 10 is used as a parent device. It may be configured by the machine P and three or more slave machines. In this case, the call switching unit 11 is provided in any one of the slaves, and the other slaves are composed of the wireless interface unit 6 and the communication unit 7.

In the above embodiment, the case where the calling bell for the slave A and the calling bell for the slave B are issued from the calling unit 8 of the slave A has been described, but the present invention is not limited to this. Instead, the calling unit may be provided in the handset B, and the calling unit may emit a calling sound when an incoming call arrives.

[0029]

As described above, according to the present invention, the call switching unit is provided in the first handset of the plurality of handset units, and the second handset is composed of the wireless interface unit and the call unit. Since the call switching unit provided in the first slave unit allows the second slave unit to talk on the telephone, the second slave unit can be made smaller and lighter and the second slave unit can be Since various forms can be realized, the usefulness as a cordless telephone can be further improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a cordless telephone according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a procedure for making a call from a cordless phone according to an embodiment from a child device A.

FIG. 3 is a schematic diagram showing a procedure for making a call from a handset device B of the cordless telephone according to the embodiment.

FIG. 4 is a schematic diagram showing a procedure for receiving an incoming call to a handset A of a cordless telephone according to an embodiment.

FIG. 5 is a schematic diagram showing a procedure of receiving an incoming call to the handset device B of the cordless telephone according to the embodiment.

FIG. 6 is a block diagram showing a configuration of a conventional cordless telephone.

FIG. 7 is a schematic diagram showing a communication procedure in a conventional cordless telephone.

[Explanation of symbols]

1, 10 ... Cordless telephone, 2 ... Telephone line, 3 ...
Line interface unit (line I / F unit), 4 ... control unit, 5, 6 ... Wireless interface unit (wireless I / F)
Section), 7 ... call section, 8, 12 ... call control section, 9 ... call section, 11 ... call switching section, 13 ... main control section, P
...... Master unit, A, B …… Slave unit.

Claims (5)

[Claims] 1. A cordless telephone having a plurality of cordless handsets, a wireless interface section, and a call section for making a call.
A first child having a call control unit for processing an outgoing signal and an incoming signal, a calling unit for issuing a reception bell, and a call switching unit for selecting which of the plurality of slave units is to communicate with. Device, a wireless interface unit, and a call unit for making a call, and a second handset unit that enables a call by the call switching unit of the first handset unit and a telephone line. Line interface section for performing the protocol processing of the above, a wireless interface section, a call control section for processing an outgoing signal and an incoming signal, and a call switching signal sent from the call switching section of the first slave unit. When this is done, an information path is set between the second slave unit and the first slave unit.
Cordless telephone set having a main unit having a main control unit that cuts an information path set between the slave unit and the main unit and saves the control path. 2. The cordless telephone according to claim 1, wherein the second handset has a headset configuration. 3. The calling unit of the first slave unit emits a ringing sound for calling the first slave unit and a ringing sound for calling the second slave unit with different ring sounds. The cordless telephone according to claim 1, wherein the cordless telephone is provided. 4. The cordless telephone according to claim 1, wherein a telephone switch of the second handset is provided with a fax switch. 5. The first, second, third, or third aspect of the present invention is characterized in that the second handset has a calling unit, and when the incoming call arrives, the calling unit emits a ringing tone. The cordless telephone according to claim 4.