KR0143014B1 - Cordless telephone capable of connecting/disconnecting calls - Google Patents

Abstract

The present invention relates to a wireless telephone and a method capable of automatic call connection / disconnection, which enables automatic call connection by voice detection as well as manual call connection / disconnection by key operation when an incoming call occurs.

The wireless telephone provided in the present invention includes key input means for setting call connection / disconnection operation and state of the wireless telephone by manual operation, and a microprocessor and memory for controlling the operation of the entire wireless telephone according to the input of the key input means. Control means consisting of, and the antenna is connected to the amplifier and the modulator / demodulator means for transmitting and receiving amplification and modulation / demodulation, and the voice to convert the voice signal input during the call to the electrical signal to output Input means, voice detection means for detecting whether there is a voice input through the voice input means and transmitting a detection result to the controller, and control of the control means if the voice input through the voice input means is a start sound. A time delay means for delaying a predetermined time and transmitting the delay to the transmission and reception unit, and the electricity received from the other side. It comprises a call to an audio output means for converting and outputting a speech signal, characterized in that running the call connection and separation by manual operation, and voice.

Description

Cordless phone with automatic call connection / disconnection and its method

1 is a schematic block diagram of a conventional wireless telephone,

2 is a flowchart illustrating a call connection method of a conventional wireless telephone;

3 is a schematic block diagram of a wireless telephone according to a preferred embodiment of the present invention;

4 is a flowchart illustrating a call connection method of a wireless telephone according to an embodiment of the present invention;

5 is a time delay characteristic diagram of the present invention.

* Explanation of symbols for main parts of the drawings

30: time delay device 31: microphone

33: switch 34: speaker

35: voice detection 36: control unit

37: switch control signal 38: keypad

39: ring generator 40: transmitter and receiver

41: Antenna

The present invention relates to a wireless telephone and a method capable of automatic call connection / disconnection, and more particularly, to automatic call connection / disconnection that enables automatic call connection by voice detection as well as manual call connection / disconnection by key operation when an incoming call occurs. A telephone and a method thereof.

1 is a schematic block diagram of a conventional wireless telephone.

Referring to FIG. 1, the conventional wireless telephone is composed of a number key and a function key, and has a cap pad 11 for setting the operation and state of the wireless telephone by manual operation, and the entire wireless telephone in accordance with the input of the keypad 11. The control unit 15 is configured to control the operation of the microprocessor and the memory, the ring generator 12 for receiving incoming and warning sounds under the control of the control unit 15, the antenna 17 is connected to the amplifier and Transmitter and receiver 16 configured to amplify and modulate / demodulate a transmit / receive signal, and a microphone which is used as a voice input device during a call and converts a voice signal into an electrical signal to transmit to the transceiver 16 ( 13) and a speaker 14 which converts the electrical signal received from the other side into a voice signal and outputs it.

The conventional radiotelephone configured as described above operates in the same order as the flowchart showing the call connection method of the conventional radiotelephone of FIG. 2, with reference to FIG. 2. FIG.

First, when power is supplied to the wireless telephone, the program embedded in the controller 15 checks whether or not a call is received (201). Form and repeat. When the incoming call occurs in the incoming call confirmation step 201, it is confirmed whether the start (call connection) key is pressed (203). If the opening is not pressed as a result of the check, the ring generator 12 periodically checks the incoming tone. The ring generation is controlled (204) to be generated.

Steps 203 and 204 are continued until the opening is pressed and the call is connected when the opening is pressed (205). At this time, the user makes a call.

And, the end of the call can be determined by comparing (206) whether or not the end key is pressed. If the end key is not pressed as a result of step 206, the call connection state is maintained (207). Pressing the end key ends the call (208) and returns to the initial start state.

However, in the case of a wireless telephone, it is difficult to implement an automatic switch such as a hook switch of a general landline telephone due to the mobility. Therefore, when using a cordless telephone to which a call is connected in the above manner, the user must consciously press a key to announce the call initiation (call connection) and the call termination (call termination), and this conscious operation is troublesome for the user. There are disadvantages.

In order to compensate for the above disadvantages, the present invention provides an automatic call connection / separation wireless telephone and a method for enabling automatic call connection / disconnection by voice detection as well as manual call connection / disconnection by key operation when an incoming call occurs. It aims to do it.

In order to achieve the above object, the wireless telephone provided in the present invention is a key input means for setting a call connection / disconnection operation and a state of the wireless telephone by manual operation, and the operation of the entire wireless telephone in accordance with the input of the key input means. A control means composed of a microprocessor and a memory, connected to an antenna, an amplifier and a modulator, a transmit / receive means for amplifying and modulating / demodulating a transmit / receive signal, and an audio signal input during a call. A voice input means for converting and outputting a signal, a voice detection means for detecting whether there is a voice input through the voice input means, and transmitting a detection result to the controller; and a voice input through the voice input means is a start sound. * In the case of the first voice after an incoming call is transmitted to the transmission / reception unit by delaying for a predetermined time under the control of the control means. It is configured to receive the electrical signal and the time delay means, from the other party to the sound output means for converting and outputting a speech signal, characterized in that running the call connection and separation by manual operation, and voice.

In addition, the wireless telephone call access method for achieving the object of the present invention is the incoming step of repeating the incoming call determination and the incoming call search according to the power supply, and whether or not the user's response when the incoming call occurs as a result of the incoming step; A response detecting step of periodically generating a ring tone until a response is determined, a call connection step of connecting a call if there is a response from the user as a result of the response detecting step, and a start of determining whether or not a starting voice has been transmitted A sound determination step, a transmission signal control step of transmitting an input signal without a time delay when the start sound determination step is transmitted, and a call connection state control step of determining a transmission signal state and performing necessary control in a call connection state And check whether the condition for call termination is satisfied. Consists of the finishing process step on which the end the right call.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

3 is a schematic block diagram of a wireless telephone according to a preferred embodiment of the present invention, and FIG. 4 is a flowchart illustrating a call connection method of a wireless telephone according to a preferred embodiment of the present invention.

Referring to FIG. 3, the wireless telephone of the present invention includes a keypad 38 for setting the operation and state of the wireless telephone by manual operation, and controls the operation of the entire wireless telephone according to the input of the keypad 38. And a control unit 36 composed of a memory, a ring generator 39 for receiving incoming and warning sounds under the control of the control unit 36, an antenna 41, and an amplifier and a demodulator. / Transceiver 40 for amplifying and demodulating / demodulating the received signal, a microphone 31 for converting and outputting the voice signal input during the call to the electrical signal, and whether there is a voice input through the microphone 31 A voice detector 35 for detecting and transmitting a detection result to the control unit, and a time delay device for delaying for a predetermined time when the voice input through the microphone 31 is a start sound and transmitting the result to the transceiver 40 ( 30) and, It consists of an electric signal received from the counterpart to the speaker 34, which converts a speech signal.

At this time, the time delay device 30 is a time delay unit 32 for delaying the voice signal input from the microphone 31, the first terminal (Si1) the microphone 31 does not pass through the delay unit 32 A signal from) is input, a signal through the delay unit 32 is input to the second terminal Si2, and a switch in which the first or second terminals Si1 and Si2 are selected by the selection switch S0. And the switch 33 connects the selection switch terminal S0 to the second terminal Si2 when the input voice is the start sound (the first voice after the incoming call is generated). If not the start sound, the selector switch terminal is connected to the first terminal Si1.

In addition, the automatic call connection method of the present invention will be described with reference to FIG.

The controller 36 compares and determines whether an incoming call occurs when power is supplied to the phone, and repeats a process of searching for incoming call 402 until an incoming call occurs when no incoming call occurs.

In response to determining whether the incoming call occurs in step 401, when the incoming call occurs, the user response is determined by taking a logical sum of whether a key input is generated using the keypad 38 and whether the voice is detected through the microphone 31 for call connection. If there is no voice detection and no key input, the control unit 36 controls the ring generator 39 to generate a ring tone periodically until there is a response from the user.

In step 403, if the user answers the call tone through voice or key input, the controller 36 connects the call to the call 405.

In this way, the call is connected and the user makes a call.

However, in the case of the first voice of the user recognized as a response to the optical illusion, that is, the start tone, the call is connected after the voice signal is generated, and thus a signal of the previous part is lost.

Therefore, the controller 36 determines whether the start voice is transmitted before starting the call (406) and controls the state of the switch 33. If the start voice has not been transmitted yet, the control unit 36 transmits the start voice that is not lost. The switch 33 is controlled to transmit after a predetermined time delay, and the switch 33 is controlled to transmit an input signal without a time delay when the start voice is transmitted.

That is, when the start voice is not yet transmitted, the second terminal Si ₂ to which the signal passing through the time delay unit 32 is connected to the selection switch terminal S _{0 in} order to transmit the input signal after a predetermined time delay. And a first terminal to which a signal without passing through the time delay unit 32 is applied to the selection switch terminal Si _{0 in} order to transmit an input signal without time delay when the start voice is transmitted. Si ₁ ).

If the switch state is determined as described above, necessary control is performed in the call connection state (409).

And, for the call termination branch, first, it is checked whether the condition for ending the call is satisfied (410). The condition for ending the call is whether or not there is no call for a predetermined time (T seconds) set by the user and the termination input. Check by logical OR.

If the result of the check is satisfied, the call is terminated (411), and then the call returns to the step of searching (402). If the condition is not satisfied, the processes of 406, 407, 408, 409 and 410 are repeated.

5 shows a time delay characteristic of the present invention, where (a) represents a microphone input signal, (b) represents a telephone transmission signal, (c) represents a telephone reception signal, and (d) represents a speaker output signal. .

Referring to FIG. 5, in the case of the input signal a and the telephone transmission signal b, there is a delay of a predetermined time td only in the first signals 501 and 503, which is a voice detector. 35 is a new book for detecting voice. The voice detector 35 also takes td time to detect that the voice input has disappeared.

In this case, the time delay td is a sufficiently short time td < .

As described above, the automatic call-connectable wireless telephone and the method provided by the present invention enable a user to make a call by immediately picking up the telephone when an incoming call occurs and answering the call without key adjustment, and this function provides convenience for the wireless telephone user. . In addition, by automatically ending the call when there is no voice input for a certain time, there is an advantage that can prevent long-term call charges due to missing call termination.

Claims (9)

Key input means for setting call connection / disconnection operation and state of the wireless telephone by manual operation, control means for controlling the operation of the entire wireless telephone in accordance with the input of the key input means, and comprising microprocessor and memory; It is connected to an antenna and consists of an amplifier and a modulator / demodulator for transmitting and receiving means for amplifying and modulating / demodulating a transmission / reception signal, a voice input means for converting and outputting an audio signal input during a call, and the voice input means. Voice detection means for detecting whether there is a voice input through the voice and transmitting a detection result to the controller, and if the voice input through the voice input means is a start sound for a predetermined time under the control of the control means to transmit and receive A time delay means for transmitting to a negative side, and an electrical signal received from the other side Consists of a voice output means, the automatic call connection / separation, characterized in that to execute a call connection and separation by manual operation, and voice capable wireless telephone. 2. The apparatus of claim 1, wherein the time delay means includes a time delay unit for delaying the voice signal input from the voice input means, a signal not passing through the delay unit at a first terminal, and a delay unit at the second terminal. And a switch unit in which a signal is input and a first terminal or a second terminal is selected by a selection switch. 3. The switch unit according to claim 2, wherein the switch unit is connected to the second switch unit when the voice input by the control means is the start sound, and the select switch terminal is connected to the first terminal when the input voice is not the start sound. An automatic call connection / disconnection cordless telephone, characterized in that connected. Receiving step of repeating the incoming call and searching the incoming call according to the power supply, and determining whether there is a user's response when the incoming call result is detected. A call connection step of connecting a call if there is a response from the user as a result of the response detection step, a start tone determination step of determining whether or not a start voice has been transmitted, and a start tone determination result of the start tone determination step A transmission signal control step of transmitting an input signal when a sound is transmitted and transmitting an input signal after a predetermined time delay when a start sound is not transmitted; and determining a transmission signal state and performing necessary control in a call connection state. Call termination status control step and whether the condition for call termination is satisfied. Automatic call connection / isolation method of a radio telephone, characterized in that when the condition has been satisfied composed of termination processing step on which end the call. 5. The method of claim 4, wherein the response detecting step determines whether there is a start key input by a user or a voice input of the user is detected. 5. The transmission signal control step of claim 4, wherein the transmitting signal control step connects the voice input through the time delay unit to the transmitting and receiving means when the start tone is not transmitted, and directly connects the input voice to the transmitting and receiving means when the start tone is transmitted. A method for automatic call connection / disconnection of a cordless telephone, characterized by controlling a selector switch. The method of claim 4, wherein the call termination condition of the call termination processing step is that a voice is not input or an end key is input for a predetermined time set by a user. 5. The method of claim 4, wherein the incoming step is performed after the call termination processing step. 5. The method as claimed in claim 4, wherein the call termination processing step performs the start tone determination step when the call termination confirmation result does not satisfy the condition for call termination.