JP2515897B2 - Cordless telephone equipment - Google Patents

Description

The present invention relates to a cordless telephone device.

[Conventional technology]

A conventional cordless telephone device will be described with reference to the drawings.

3 (a) and 3 (b) are flow charts showing an example of the operation procedure of the conventional cordless telephone device.

In FIG. 3 (a), when the connection device of the conventional cordless telephone device receives a call and the reception electric field detection circuit of the connection device detects "no electric field" of the control channel (step 3).
1) If an incoming call response signal is sent after sending an incoming call signal (step 32) (step 34), the process proceeds to the subsequent incoming connection operation. Further, when the reception electric field detection circuit of the connection device detects "there is an electric field" of the control channel (step 31) or when the incoming call response signal is not received after the incoming call signal is transmitted (step 34), The bell of the connecting device is rung without shifting to the call connecting operation (step 33).

In FIG. 3 (b), when a cordless telephone of the conventional cordless telephone device is called, after off-hook (step
40), when the reception electric field detection circuit of the cordless telephone detects "no electric field" of the control channel (step 41), it sends a calling signal (step 43) and sends a calling response signal returned from the connection device. If received (step 44), the process proceeds to the subsequent call connection operation. However, if the call response signal cannot be received (step 44), a busy tone (hereinafter referred to as BT) is transmitted (step 42) and the call connection operation is not performed.

[Problems to be Solved by the Invention]

The above-described conventional cordless telephone device does not receive an incoming call response signal when the incoming electric field detection circuit of the connection device detects "there is an electric field" of the control channel at the time of incoming call, or after the incoming call signal is transmitted. In that case, the bell of the connecting device is sounded without shifting to the subsequent incoming connection operation, and the received electric field detection circuit of the cordless telephone after off-hook at the time of making a call detects "there is an electric field" of the control channel, or If the call response signal is not received after the call signal is sent, BT is sent without transitioning to the subsequent call connection operation. When they occur at the same time, neither the outgoing call connection nor the incoming call connection is performed, and there is a drawback that both the incoming call and the outgoing call become a lost call.

[Means for solving the problem]

The cordless telephone device of the present invention comprises a connection device and a cordless telephone, and "when there is an electric field" in the connection device and the cordless telephone when the received electric field is higher than a predetermined reference level, and when the electric field is smaller than the reference level, " It has first and second reception electric field detection circuits each capable of determining "no electric field", and detects the reception electric field of the control channel before the first and second reception electric field detection circuits start transmission. In the cordless telephone device, the transmission is started after confirming "no electric field", and the wireless connection is made only when the calling names of the cordless telephone and the connecting device are the same.
If the receiving electric field detection circuit detects the "presence of electric field" of the control channel and there is the reception of the calling signal having the same calling name from the cordless telephone, the cordless telephone is operated rather than the operation according to the calling response signal transmitting procedure. An incoming call signal priority sending means for giving priority to sending an incoming call signal to the cordless telephone, and the cordless telephone sets the first call during the procedure from after off-hook to when receiving the call response signal from the connection device. When the reception electric field detection circuit 2 detects the presence of the electric field of the control channel and the reception of the incoming call signal having the same calling name from the connection device, the incoming call response is received rather than the operation by the calling connection procedure. An incoming call response signal priority sending means for giving priority to the sending of a signal is provided, and the incoming call signal priority sending means outputs the incoming call signal, the outgoing call response signal, and the first ringing tone. Section, a first receiving section for receiving a call-out signal having the same call name from the cordless telephone and the incoming-call response signal, and the first received electric field detection circuit detects "there is an electric field" in the control channel. And when the first receiving unit receives a call signal having the same call name, the call signal from the first signal generating unit is transmitted via the first transmitting unit and the call signal is transmitted. And a first control unit for generating the ringing tone from the first signal generation unit when the call reception response signal corresponding to the call reception response signal is not received. A second signal generating section for generating a signal, the incoming call response signal, and a busy tone; a second receiving section for receiving the incoming call signal and the outgoing call response signal having the same calling name from the connection device; Cordless phone The second reception electric field detection circuit detects "there is an electric field" in the control channel during the procedure from the time of off-hook at the time of call to the reception of the call response signal of the reception unit, and the second reception unit When an incoming call signal having the same calling name is received, the incoming call response signal from the second signal generator is sent out via the second transmitter, and after the off-hook, the second received electric field detection circuit The "no electric field" of the control channel is detected, and the calling signal from the second signal generating section is sent out via the second transmitting section, and then the second receiving section sends out the calling signal in response to the calling signal. When the incoming call signal is received without receiving the incoming call response signal, the sending of the outgoing call signal from the second transmitting unit is stopped and the incoming call response signal from the second signal generating unit is sent to the second incoming signal. The second receiver receives the signal from the transmitter. And a second control unit for transmitting the busy tone from the second signal generation unit when the call response signal and the incoming call signal are not received.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2A and 2B are flow charts showing an example of an operation procedure of a connection device and a cordless telephone in this embodiment, respectively.

In FIG. 1, the cordless telephone device of the present embodiment comprises a connection device 50 connected to a telephone line 70 and a cordless telephone 60 wirelessly connected to the connection device 50, and the connection device 50 is a hybrid circuit that interfaces to the telephone line 70. (Hereinafter referred to as H) 54, and a transmission unit (hereinafter referred to as TX) for converting a voice signal from the telephone line 70 and an internally generated control signal (incoming call signal, outgoing call response signal, etc.) into a wireless signal and transmitting the wireless signal. 51, a reception unit (hereinafter referred to as RX) 52 that receives a wireless signal from the cordless telephone 60 and converts it into a wired signal, and a magnitude of the received electric field level with respect to a preset reference level included in the RX 52. A reception electric field detection circuit (hereinafter referred to as a detection circuit) 53 for detecting a signal, a signal generation unit (hereinafter referred to as SG) 56 that generates an incoming signal, a call response signal, a ringing tone, and the like, and a connection device 50.
It has a control unit (hereinafter referred to as CONT) 55 for controlling the whole,
The cordless telephone 60 includes a handset unit 64 that controls the input and output of voice signals, and a hook switch (hereinafter referred to as a hook SW) 66 that operates by on-hook / off-hook of the handset unit 64.
A TX61 for converting a voice signal from the handset unit 64 and an internally generated control signal (calling signal, call response signal, etc.) into a wireless signal and transmitting the wireless signal; and receiving a wireless signal from the connection device 50. RX62 that converts to a wired signal, detection circuit 63 that detects the magnitude of the received electric field level with respect to a preset reference level included in RX62, calling signal, incoming call response signal, busy tone (BT), etc. The SG67 that generates the signal and the CONT65 that controls the entire cordless telephone 60 are included.

Each of the detection circuits 53 and 63 has a preset reference level, and when the received electric field is higher than the reference level, "electric field is present" can be judged, and when the received electric field is small, "no electric field" can be decided. .

Next, the operation of this embodiment will be described with reference to FIGS. 1 and 2 (a) and (b).

 First, the operation when receiving a call will be described.

When the connection device 50 detects an incoming signal from the telephone line 70 by the CONT 55 and the detection circuit 53 detects "no electric field" in the control channel (step 11), the CONT 55 sends an incoming signal from the SG 56 to the cordless telephone 60. When the RX 52 receives the incoming call response signal from the cordless telephone 60 (step 15) after sending out through the TX 51 (step 13), the process moves to the subsequent incoming call connection operation. If RX52 does not receive the incoming call response signal (step 1
5) The ringing bell rings from SG56 (step 14).

However, if the detection circuit 63 detects "there is an electric field" in the control channel (step 11), even if it is the reception of a calling signal having the same calling name (step 12),
CONT55 ignores the generated signal and receives the incoming call signal from SG56.
Send to cordless telephone 60 via TX51 (step 13)
When the RX 52 receives the incoming call response signal (step 15), the subsequent incoming call connection operation is started. If RX52 does not receive the incoming call response signal (step 15), SG56 rings the ringing bell (step 14).

 Next, the operation at the time of calling will be described.

In the cordless telephone 60, when the CONT 65 detects the off-hook of the hook SW 66, the detection circuit 63 detects the control channel “with electric field” (step 21), and the RX 62 receives the incoming call signal having the same calling name (step 21). 22) CONT
65 stops the calling connection operation, sends an incoming call response signal for the incoming call from SG67 to the connection device 50 via the TX 61 (step 28), and shifts to the subsequent incoming call connection operation. However, if no incoming signal is received (step 22), a busy tone (BT) is sent from SG67 (step 26).

In addition, the detection circuit 63 of the CONT65 detects "no electric field" in the control channel after the off-hook detection of the hook SW66 (step 2).
1) Then, the call signal is sent from SG67 to the connection device 50 via the TX61 (step 23), and the call response signal from the connection device 50 for the call signal is not received by the RX62. When an incoming call signal with the same call name in (Step 24) is received (Step 25), the CONT 65 stops sending the outgoing call signal from SG67 (Step 27) and sends an incoming call response signal from SG67. The data is sent out via the TX 61 (step 28) and then the incoming call connection operation is started. However, if no incoming call signal is received (step 25), a busy tone (BT) is sent from SG67 (step 26).

[Effects of the Invention] As described above, according to the present invention, when a calling and an incoming call occur at substantially the same time, the incoming call to the connection device is made so that the incoming call connection operation is performed prior to the outgoing call connection operation. By providing the signal priority transmission means and the call reception response signal priority transmission means in the cordless telephone, there is an effect that it is possible to prevent the conventional incoming call and outgoing call from being lost calls. In addition, when an outgoing call and an incoming call occur almost at the same time, the ringing bell for the incoming call is rung to inform that the incoming call has priority.
It is not that the call cannot be made due to incorrect dialing,
This has the effect of notifying the caller that an incoming call was given priority and could not be made.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are a flow chart showing an example of an operation procedure of a connection device and a cordless telephone in this embodiment, respectively. (A) And (b) is a flowchart which shows an example of the operation procedure of a connection device and a cordless telephone in the conventional cordless telephone device, respectively. 50 …… Connecting device, 51 …… Transmitter (TX), 52 …… Receiver (RX), 53 …… Reception electric field detection circuit (detection circuit), 54 ……
Hybrid circuit (H), 55 ... Control unit (CONT), 56 ...
… Signal generator (SG), 60 …… Cordless telephone, 61 ……
Transmitter (TX), 62 ... Receiver (RX), 63 ... Reception electric field detection circuit (detection circuit), 64 ... Handset unit, 65 ... Control unit (CONT), 66 ... Hook switch (hook) SW), 67 ……
Signal generator (SG).

Claims (1)

(57) [Claims] 1. A connecting device and a cordless telephone,
First and second reception electric fields capable of determining "electric field present" when the electric field received by the connection device and the cordless telephone is larger than a predetermined reference level and "no electric field" when the electric field is smaller than the reference level. The first and second reception electric field detection circuits each have a detection circuit, perform reception electric field detection of the control channel before starting transmission, and confirm "no electric field" before starting transmission. In a cordless telephone device that makes a wireless connection only when the calling names of the cordless telephone and the connection device are the same,
The connection device responds to a call when the first received electric field detection circuit detects "there is an electric field" of the control channel at the time of an incoming call and a call signal with the same call name is received from the cordless telephone. An incoming call signal priority sending means for giving priority to sending an incoming call signal to the cordless telephone rather than an operation according to a signal sending procedure is provided, and the cordless telephone sends a call response signal from the connection device after off-hook at the time of calling. During the procedure up to the reception, if the second received electric field detection circuit detects "there is an electric field" in the control channel and there is the reception of the incoming call signal with the same calling name from the connection device, it is issued. An incoming call response signal priority sending means for giving priority to sending an incoming call response signal over the operation according to the call connection procedure is provided, and the incoming call signal priority sending means includes the incoming call signal, the outgoing call response signal, and the calling page. A first signal generating section for generating a beeping sound, a first receiving section for receiving a calling signal having the same calling name and the incoming call response signal from the cordless telephone, and the first received electric field detecting circuit. Detects "there is an electric field" on the control channel and the first receiving section receives a calling signal having the same calling name, the first transmitting section outputs the incoming signal from the first signal generating section. And a first control unit that causes the ringing tone to be generated from the first signal generation unit when the incoming call response signal corresponding to the incoming call signal is not received. The signal priority transmitting means receives the call-out signal, the call-in response signal, and a second signal generating unit that generates a busy tone, and the call-in signal and the call-out response signal from the connection device having the same call name. The second receiving part to The second received electric field detection circuit detects "there is an electric field" in the control channel during the procedure from the time when the cordless telephone is off-hook at the time of calling to the time when the call response signal of the receiving unit is received, and When the second receiving section receives the incoming call signal having the same calling name, the second incoming call response signal from the second signal generating section is sent out via the second transmitting section, and after the off-hook, the second incoming call signal is sent. A received electric field detection circuit detects "no electric field" on the control channel and
Of the calling signal from the signal generating section of the second transmitting section, the second receiving section receives the incoming call signal without receiving a calling response signal in response to the calling signal. Then, the sending of the calling signal from the second transmitting unit is stopped and the incoming call response signal from the second signal generating unit is sent to the second
A second transmitting section for transmitting the busy tone from the second signal generating section when the second receiving section does not receive the call response signal and the incoming call signal.
And a control unit for the cordless telephone device.