JP2970160B2 - Cordless telephone equipment - Google Patents

Abstract

PURPOSE:To enlarge a call area and to improve call tone quality in response to diversified user needs in a codeless telephone set. CONSTITUTION:Means 18 and 19 for altering a minimum electric level, a means transmitting the altered minimum electric field level to a connection device 20 and a means 16 measuring an input electric field level are provided for the codeless telephone set 10. A means 26 measuring the input electric field level is provided for the connection device 20. Thus, the minimum electric field level can be dropped when a user intends to enlarge the call area, and the minimum electric field level can be raised when the user intends to improve call tone quality.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone device, and more particularly to a cordless telephone device effective for improving the quality of a call and expanding a call area.

[0002]

2. Description of the Related Art A conventional cordless telephone apparatus will be described with reference to FIG. The conventional cordless telephone device includes a connection device 40 and a cordless telephone 30. The connection device 40 includes a hybrid circuit 45 and an incoming call detection circuit 48 connected to the telephone line 29, a control unit 44 connected to the hybrid circuit 45, a transmission unit 43 and a reception unit 41, and an electric field level determination circuit connected to the reception unit 41. 42. The cordless telephone 30 includes a reception unit 31, an electric field level determination circuit 32 connected to the reception unit 31, a control unit 34 and a handset unit 35, and a key SW 38 and a transmission unit 33 connected to the control unit 34.

FIG. 5 is a flowchart showing the operation of calling connection in the conventional cordless telephone apparatus shown in FIG. When the user goes off-hook for calling, the key SW3
In step 8, off-hook is detected (step 301), and the control unit 34 transmits a calling signal via the transmission unit 33 (step 303). The transmitted call signal is detected by the receiving unit 41 of the connection device 40, further demodulated, and input to the control unit 44. At the same time, the electric field level judgment circuit 42 judges whether the electric field level is equal to or higher than the set value (step 403). If the electric field level is equal to or higher than the set value, the control unit 44 receives a call signal (step 401). A signal is transmitted (step 404).

After transmitting the call response signal, the control unit 44 transmits a signal from the receiving unit 41 to the telephone line 29 via the hybrid 45 and a signal from the telephone line 29 via the hybrid circuit 45 to the transmitting unit. 43 (steps 405 and 406), and enters the call processing (step 4).
07).

[0005] The transmitted call response signal is demodulated by the receiving section 31 of the cordless telephone 30 and input to the control section 34. At the same time, the electric field level judgment circuit 32 judges whether or not the electric field level is equal to or higher than the set value (step 306). After receiving the call response signal, the control unit 3
No. 4 turns on the audio circuit (step 307), and enters into the call processing (step 308). In this way, the conventional cordless telephone device performs a calling process.

FIG. 6 is a flowchart showing the operation of incoming call connection in the conventional cordless telephone device shown in FIG. An incoming call to the cordless telephone device 30 is sent to the connection device 40.
Is detected by the incoming call detection circuit 48 (step 451), and is input to the control unit 44. The control unit 44 transmits an incoming call signal via the transmission unit 43 (Step 452). The transmitted incoming signal is detected by the receiving unit 31 of the cordless telephone 30, further demodulated, and input to the control unit 34. At the same time, the electric field level judgment circuit 32 judges whether the electric field level is equal to or higher than the set value (step 354). If the electric field level is equal to or higher than the set value, the controller 34 receives an incoming call signal (step 351).
Next, the control unit 34 transmits an incoming call response signal via the transmission unit 33 (step 355). The transmitted call response signal is detected by the receiving unit 41 of the connection device 40, further demodulated, and input to the control unit 44. At the same time, the electric field level judgment circuit 42 judges whether the electric field level is equal to or higher than the set value (step 455). If the electric field level is equal to or higher than the set value, the control unit 44 receives a call signal (step 453). A ringing signal or a bell stop signal is transmitted (step 456).

The cordless telephone 30 rings the bell if the bell ringing signal is received, and stops the bell if the bell stop signal is received (steps 356 and 357), and notifies the user of the incoming call. Key SW when user goes off-hook to answer incoming call
At 38, an off-hook is detected (step 358), and the control unit 34 transmits an off-hook signal via the transmission unit 33 (step 359), and turns on the audio circuit (step 36).
0), and enters the call processing (step 308). The transmitted off-hook signal is detected and demodulated by the receiving unit 41 of the connection device 40, and is input to the control unit 44. Upon receiving this off-hook signal (step 457), the control unit 4
No. 4 turns on the voice circuit (step 458), goes off-hook (step 459), and enters into the call processing (step 4).
07). In this way, the conventional cordless telephone device performs the incoming call processing.

[0008]

However, in the above-mentioned conventional cordless telephone device, the connection device and the cordless telephone make a wireless connection only when receiving a predetermined electric field level or higher. Therefore, there is a disadvantage that it is unsatisfactory for a user who wants to connect at a lower electric field level in order to enlarge the communication area, and also for a user who wants to connect at a higher electric field level in order to improve the sound quality of a call. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a cordless telephone device capable of expanding a call area and further improving call quality. .

[0010]

A cordless telephone device according to the present invention comprises a connecting device for connecting to a telephone line, and a cordless telephone for making a wireless line connection with the connecting device, wherein the cordless telephone is connected to the connecting device. Means for setting and storing a minimum electric field level for establishing a wireless line connection with the apparatus, means for transmitting a call signal including the stored minimum electric field level information at the time of calling, and stored minimum electric field level information at the time of receiving a call. and means for transmitting an incoming call response signal including,
The connecting device, having means for measuring the input electric field level, means for performing a wireless connection only when measured values of the input electric field level is equal to or greater than the minimum electric field level included in the calling signal or incoming call response signal It is characterized by. In the present invention
And a means for measuring the input electric field level.
At the start of line connection, the stored lowest electric field level
And the measured electric field level.
Means for receiving a signal only when necessary.

[0011]

In the cordless telephone according to the present invention,
Means for the cordless telephone to change the minimum electric field level;
It has means for transmitting the changed level to the connection device and means for measuring the input electric field level, and the connection device has means for measuring the input electric field level. The electric field level can be easily changed. As a result, when the user wants to expand the communication area, lowering the minimum electric field level allows
The call area can be easily expanded, and when the user wants to further improve the call sound quality, the call electric sound quality can be easily improved by increasing the minimum electric field level.

[0012]

Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram of a cordless telephone device according to an embodiment of the present invention. The connection device 20 includes a hybrid circuit 25 and an incoming call detection circuit 28 connected to the telephone line 29, a control unit 24 and a transmission unit 23 and a reception unit 21 connected to the hybrid circuit 25, and an electric field connected to the reception unit 21. It comprises a level measuring circuit 26. The connection device 20 is connected to the cordless telephone 10 via a wireless line. The cordless telephone 10 includes a receiving unit 11, an electric field level measuring circuit 16 connected to the receiving unit 11, a control unit 14 and a handset unit 15, a key SW 18 connected to the control unit 14, a transmitting unit 13 and an EEPROM 19. Be composed.

FIG. 2 is a flowchart showing the operation of the calling process of the cordless telephone device according to the embodiment shown in FIG. When the user goes off-hook for calling, key SW
At step 18, off-hook is detected (step 101), the control unit 14 inputs the lowest electric field level from the EEPROM 19 (step 102), and transmits a call signal including the information of the lowest electric field level via the transmission unit 13 (step 10).
3).

The transmitted calling signal is detected and demodulated by the receiving section 21 of the connection device 20 and input to the control section 24. At the same time, the electric field level is measured by the electric field level measuring circuit 26 (step 202). Upon receiving the call signal (step 201), the control unit 24 compares the lowest electric field level included in the call signal with the measured electric field level (step 203). A call response signal is transmitted (step 204). After transmitting the call response signal, the control unit 24 transmits the signal from the receiving unit 21 to the telephone line 29 via the hybrid 25 and to the telephone line 2.
The signal from No. 9 is controlled to go to the transmission unit 23 via the hybrid circuit 25 (steps 205 and 206), and the communication processing is started (step 207).

The transmitted call response signal is detected and demodulated by the receiving unit 11 of the cordless telephone 10 and is transmitted to the control unit 14.
Is input to At the same time, the electric field level is measured by the electric field level measuring circuit 16 (step 105). The control unit 14
When the call response signal is received (step 104), the EEP
The minimum electric field level input from the ROM 19 is compared with the measured electric field level (step 106). If the electric field level is equal to or higher than the minimum electric field level, the voice circuit is turned on (step 107), and the communication process is started (step 108).

As described above, the calling process of the cordless telephone device of the present embodiment is performed, but the change of the minimum electric field level is performed by detecting the key input from the key SW 18 by the control unit 14 and storing it in the EEPROM 19. Can be performed more easily.

FIG. 3 is a flow chart showing the operation of the cordless telephone apparatus according to the present embodiment for receiving a call. An incoming call to the cordless telephone device is detected by the incoming call detection circuit 28 of the connection device 20 (step 251) and input to the control unit 24. The control unit 24 transmits an incoming call signal via the transmission unit 23 (Step 252).

The transmitted incoming signal is detected and demodulated by the receiving unit 11 of the cordless telephone 10 and input to the control unit 14. At the same time, the electric field level is measured by the electric field level measuring circuit 16 (step 153). Upon receiving the incoming call signal (step 151), the control unit 14
9, the minimum electric field level is input (step 152), and compared with the measured electric field level (step 154). A response signal is transmitted (step 155).

The transmitted call response signal is transmitted to the connection device 20.
Are detected and demodulated by the receiving unit 21 and input to the control unit 24. At the same time, the electric field level is measured by the electric field level measuring circuit 26 (step 254). When receiving the call response signal (step 253), the control unit 24 compares the lowest electric field level included in the call response signal with the measured electric field level (step 255). A bell ringing signal or a bell stop signal is transmitted by the output of (step 256). Cordless telephone 10
Sounds the bell if the bell ringing signal is received, and stops the bell if the bell stop signal is received (steps 156 and 157), and notifies the user of the incoming call. When the user goes off-hook for answering the incoming call, the off-hook is detected by the key SW 18 (step 158), the control unit 14 transmits an off-hook signal via the transmission unit 13 (step 159), and turns on the voice circuit.
(Step 160), and enters the call processing (step 1).
08). The transmitted off-hook signal is transmitted to the connection device 2
The signal is detected and demodulated by the receiving unit 21 of 0 and input to the control unit 24.

When this off-hook signal is received (step 257), the control section 24 turns on the audio circuit (step 258), goes off-hook (step 259), and enters into a telephone call process (step 207).

In this manner, the incoming call processing of the cordless telephone apparatus according to the present embodiment is performed. However, when the minimum electric field level is changed, the key input from the key SW 18 is detected by the control unit 14 and stored in the EEPROM 19. This can be easily performed.

[0023]

As described above, according to the cordless telephone device of the present invention, the user can change the minimum electric field level of the connection limit between the connection device and the cordless telephone.
If you want to increase the communication area, you can increase the communication area by lowering the minimum electric field level.
When it is desired to further improve the call sound quality, the call electric sound quality can be improved by increasing the minimum electric field level.

[Brief description of the drawings]

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

FIG. 2 is a flowchart showing an operation of a calling process of the cordless telephone device according to the embodiment shown in FIG.

FIG. 3 is a flowchart showing an operation of an incoming call process of the cordless telephone device according to the embodiment shown in FIG. 1;

FIG. 4 is a block diagram showing a conventional cordless telephone device.

FIG. 5 is a flowchart showing a call connection operation in the conventional cordless telephone device shown in FIG.

FIG. 6 is a flowchart showing an operation of incoming call connection in the conventional cordless telephone device shown in FIG.

[Explanation of symbols]

 10, 30; cordless telephones 16, 26; electric field level measuring circuit 19; EEPROM 20, 40;

Claims (2)

(57) [Claims] 1. A cordless telephone device comprising a connection device for connecting to a telephone line and a cordless telephone for making a wireless line connection with the connection device, wherein the cordless telephone has a minimum connection for making a wireless line connection with the connection device. Means for setting and storing an electric field level, means for transmitting a call signal including the stored minimum electric field level information at the time of a call, and a call response signal including the stored minimum electric field level information at the time of an incoming call. Means for transmitting, the connection device, means for measuring the input electric field level, and only when the measured value of the input electric field level is equal to or higher than the minimum electric field level included in the call signal or the call response signal A cordless telephone device comprising: means for making a wireless connection. 2. A cordless telephone device comprising a connection device for connecting to a telephone line and a cordless telephone for making a wireless line connection with the connection device, wherein the cordless telephone has a lowest electric field for making a wireless line connection with the connection device. Means for setting and storing a level, and means for transmitting a calling signal including the stored lowest electric field level information at the time of calling,
Means for transmitting an incoming call response signal including the stored lowest electric field level information at the time of an incoming call; means for measuring an input electric field level; and, at the start of wireless line connection, the stored lowest electric field level and the measured electric field level. And a means for receiving a signal only when the electric field level is equal to or higher than the minimum electric field level, wherein the connection device measures the input electric field level, and the measured value of the input electric field level is the call signal or the incoming call response. Means for performing wireless connection only when the electric field level is equal to or higher than the lowest electric field level included in the signal.