KR100623435B1 - A telephone with calling ringer bell during communication of voice conversation - Google Patents

Abstract

The present invention relates to a telephone capable of calling a ringtone during a call by improving a function of a wired or wireless telephone which is widely used for voice communication in real life.

The present invention for this purpose, the existing telephone circuit 102, the user's bell call key button 101 and the handset 108 is connected to each other through the telephone switchboard 103, 113 of the telephone line of the other party In the telephone system in which the telephone 111 and the handset 118 are in telephone communication with the existing telephone circuit 112 connected to each other, the existing telephone circuits 102 and 112 have an encoding tone of a specific key button together with a busy voice. In this case, the ringtone driving circuits 105 and 115 are connected to the busy ringer circuit 105 and 115 to determine that a specific key button is pressed through decoding analysis and to convert the tone tone into encoding tone. It is characterized in that the telephone switchboards 103 and 113 and the call bells 107 and 117 are connected, respectively.

Improvement of phone function, call status detection, keyboard encoding sound, busy ringtone, handset, busy call, telephone call

Description

A phone that can ring during a call {A TELEPHONE WITH CALLING RINGER BELL DURING COMMUNICATION OF VOICE CONVERSATION}

1 is a configuration diagram for explaining the principle of a telephone call that can be ringing during a call according to an embodiment of the present invention,

2 is a processing block diagram for ringtone driving during a call in a ringtone callable phone of the present invention;

Figure 3 is a hardware diagram showing a ringtone call phone during the call of the present invention.

4 is a flowchart for explaining a functional process for a ringing ringer telephone during a call of the present invention.
* Explanation of symbols for the main parts of the drawings
101, 111: bell call key button 102, 112: conventional telephone circuit
103, 113: electronic switch 105, 115: ringtone driving circuit during a call
107, 117: call bell

The present invention relates to a telephone capable of ringing during a call that can be classified as a telephone information processing technology in the field of signal processing of information communication by newly improving a method of making a telephone call in an internet call, a general telephone, a mobile phone, etc. using a telephone network.
There was no way to call the other party using the existing phone when the other party was talking to the other party through the normal phone and the handset was away from the ear or the other party's handset was left unattended. In particular, since the other party is invisible even if they want to communicate or make various appeals through the telephone, the other party has been satisfied with the one-way telephone response.
In the conventional two-wire telephone, the ringer can be called from the outside only when the hook switch is on, and when the hook switch is off and the phone is busy, the line is cut off from the call bell. There was no way to call Bell.

Telephones connected to the existing telephone exchange network currently in use did not have a way to call the other party's ringtone while on the phone. In addition, there is almost no way to express opinions other than the voice while the user is in a call, and users are demanding an auxiliary means to solve the problem.

The present invention has been invented in view of the above circumstances, and can be processed by applying a digital signal processing technology to call the ringtone of the other party, even during a phone call, and even during a call a specific or arbitrary call It is an object of the present invention to provide a telephone capable of ringing a call during a communication to make the other party hear an encoding sound of a key button or another ringing call to attract the other party's attention.

Another object of the present invention is to press a specific key button while in a call to detect an encoding sound of the key button, generate a ringtone and connect it to a call bell (or speaker) through a call bell separately from voice communication through the handset. It is possible to provide a telephone capable of ringing a call during a call that can indirectly communicate to the other party.

The present invention for achieving the above object, the existing telephone circuit 102, which is connected to the user's bell call key button 101 and the handset 108, respectively, the other party through the telephone switchboard 103, 113 In a telephone system in which a telephone call button 111 and a telephone handset 118 are connected to an existing telephone circuit 112 connected to each other, the existing telephone circuits 102 and 112 have a specific key together with a voice in a call. When the encoding tone of the button comes in, the ringtone driving circuit 105 and 115 during a call are connected to determine that a specific key button is pressed through decoding analysis and to convert the tone tone into an encoding tone. 115 is characterized in that the telephone switchboard 103 and 113 and the call bells 107 and 117 of the telephone line are connected, respectively.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram for explaining the principle of a telephone call that can be called during the call according to an embodiment of the present invention, the telephone required in the present invention is a call ringer (calling ringer bell for conversation) telephone, during a call If the handset 118 of the other party is left unattended or if you want to raise the alert of the other party during a call, press the bell-calling button 101 attached to the telephone circuit 102 or press any number key button. To the phone circuit 102, the encoding-tone of the keyboard 101 is transmitted to the other party, and accordingly, the ringer driving circuit 115 drives the caller 117 of the other party so that the ringer bell sounds. It is.
That is, the existing telephone circuit 102 to which the user's bell call key button 101 and the handset 108 are connected, respectively, is connected to a ringtone driving circuit 105 and a telephone line with a speaker or a call bell 107 attached thereto. The connected electron exchangers 103 are each connected. The existing telephone circuit 112 to which the other party's bell call key button 111 and the handset 118 are connected, respectively, is connected to a telephone line and a ringer driving circuit 115 with a speaker or a call bell 117 attached to a telephone line. The electron exchangers 113 are each connected.

In the telephone of the present invention, when a telephone tone is received with an encoding tone of a specific key button together with the voice of the other party received through the telephone, the specific key button is pressed through decoding analysis of the key button. In this case, the ringtone ringing function during the call to be transmitted to the ringtone driving circuit 105 and 115 by changing the encoded tone of the keyboard or the sound of another tone is newly configured.
Even in such a case, since the encoding sound of the keyboard and the ringtone of the counterpart may be ringed in addition to the voice so as to express interest to the counterpart during the call, the call expression may be performed in more various forms.

When the call is connected and we talk, the sonic signal is compressed with digital processing technology and delivered to the other party's phone through a telephone repeater. The other side of the phone decompresses the digital signal, converts it into sound waves, and delivers it to our ears. As such, most phones have a high-performance computer chip that compresses or recovers voice signals, and provides various services such as text service. On the other hand, in order to make a call through a mobile terminal such as a mobile phone or a landline telephone, first dial the phone number of the other party and call the bell attached to the other party's phone through an electronic exchange. When the other party is busy or the other party's handset is left, the ringer of the telephone is disconnected from the bell so that the ringer cannot be called.

The busy call telephone of the present invention adds the busy ringtone driving circuits 105 and 115 to the existing telephone circuits 102 and 112, respectively. The call ring 117 of the other party's phone rings to lift the handset 118 so that the other party's sound is heard. At this time, the connection line inside the bell is blocked. The user presses the ringtone call key 101 when the other party disregards the speech by disabling the handset 118 away from the ear or does not answer while leaving the handset 118 unattended. Ringtone call button 101 is a separate key button or is a method of pressing a random number button.
The call bell is transmitted to the ringer driving circuit 115 during a call through the electronic switch 103 and 113. This is because when the user presses the ring tone call key 101, the ring tone driving circuit 115 of the telephone line circuit 102 detects the encoding tone of the user key button and then the sound or other modulation of the encoded tone of the key button. Sounds ring the other party's call bell (or speaker) (BELL: 117).

At this time, if you release the ringtone call button 101, the phone circuit 112 of the other party does not detect the encoding signal of the key button to stop the ringing of the ringtone. If the other party feels disturbed by the ringer during the call, the other party may block the ringer or adjust the volume of the ringer so that the call is made less.
FIG. 2 is a process block diagram of a ringtone driving during a call in a telephone capable of ringing a call according to the present invention. The existing telephone circuit and the ringtone driving circuit during a call are shown in FIG. A tone tone tone generator 205 and a tone tone oscillator 209 of the keyboard are configured through the key tone 202, and the tone tone modulator 206, amplification and driving circuit 207 to which the ring tone selector 211 is connected. It is configured to connect the speaker or the call bell (107; 117) through.

The ringtone calling telephone during the call of the present invention adds an advanced processing function to drive the call bell 117 by detecting the encoding tone of the keyboard even during a call in a computer chip embedded in the existing telephone circuit. That is, in the telephone circuit connected to the telephone line 201, the call state detecting unit 202 detects whether the telephone is busy or not depending on the state of the hook-switch. In the on-hook state of the handset, the telephone line is connected to the ring tone modulator 206 like a conventional telephone. When dialed to call the telephone at the switchboard, a bell call signal is received through the telephone line 201. At this time, the tone-modulation is performed by an appropriate ring tone according to the ring tone selection unit 211 of the telephone, and the amplification and driving circuit 207 is appropriately amplified to drive the call bells 117 and 107. When the handset is lifted up, it is detected as being in an off-hook call, and the telephone line is blocked at the lines of the call bells 107 and 117.
On the other hand, the telephone makes a voice telephone call in the off-hook state. While in a call, the other party presses one of the 12 (number, *, #) keyboards on the phone or presses a randomly selected keyboard button to attract the other's attention or to call the other party's ringtone, independently of the call's voice. When pressed, an encoding tone following this keyboard button is heard through the phone line with the voice of the call. At this time, while the encoding tone detection unit 205 operates and the other side presses the key button, the signal of the encoding tone is continuously detected. The encoding tone detection unit 205 is a band for separating only the signal of the encoding tone from the voice or noise signal. Mainly use pass filter.

If an encoding tone is detected, the ring tone fundamental waveform is generated through the ring tone generator 209 during this signal period. Thereafter, various ring tones can be made in the ring tone modulator 206 based on the fundamental waveform of the ring tone. If one of the ring tones is selected by the ring tone selection unit 211, the amplification and driving circuit ( Through 207, the speaker or the call bells 107 and 117 can be sufficiently driven.
3 is a hardware configuration diagram illustrating a ringing call phone during a call of the present invention, and more specifically configures the existing telephone circuit and the ringing driving circuit during a call shown in FIGS. 1 and 2.

The input / output peripheral device 309 is connected to a bell call key button 101, a ring tone driving circuit 313, a hook switch 312 and an I / O port 311, respectively, the I / O port. 311 is connected to a memory 305, a digital signal processor (DSP), or a computer processor 304 of a general-purpose CPU, such as an analog-to-digital converter (303: ADC), a low pass filter (302: LPF), and an amplifier 301. While the transmitter analog input S (t) is connected, the digital-to-analog converter 308, the low pass filter 307 and the receiver analog output U (t) of the amplifier 306 are connected.

An example of a hardware device that receives an analog voice signal from a telephone line and an encoding signal of a keyboard and receives a ringing call during a call while maintaining a call state may be specifically configured and used as shown in FIG. 3. . First, the voice signal waveform input in the transmitter analog form is amplified by the amplifier 301 and then passed through the low pass filter 302 to eliminate the aliasing effect. By passing through an analog-to-digital converter 304 that performs quantization and encoding, the digital signal is converted into a digital signal in the form of a linear pulse code modulation (PCM), and then a computer processor of a general purpose CPU or a digital signal processor (DSP). 304).
When performing signal or data processing through the computer processor 304, the peripheral device 309 installed inside or outside the computer processor 304 may be referred to, and the peripheral device may be used to store digitally converted input signals or signal processed results. See also memory 305.

In particular, in order to call the other party's bell during a call, the hook-switch must be received through the input port 311 of the computer processor 304 in order to determine the busy state, and the ringtone call button 101 is separately connected. In this case, the state of the key button 101 is received by the input port. In addition, in order to drive the ringtone when the encoding signal of the keyboard is detected, the tone of the ringtone generated by software is transmitted to the ringtone driving circuit 313 through the output port 311 of the computer processor 304.
In addition, the digital signal of the voice compressed and restored by software or firmware by the computer processor 304 of the CPU is converted into a sampled analog signal form through the digital-to-analog converter 308. Passing this signal through the low pass filter 307 becomes an analog signal from which quantization noise has been removed, and when the amplifier 306 amplifies the signal to an appropriate level, it becomes an analog signal that can be heard through a telephone receiver, a speaker, or the like.

4 is a flowchart for explaining the functional processing of a ringing ringing telephone during the call of the present invention, wherein the telephone of the present invention is a computer processor that performs the function of the existing telephone circuit according to FIGS. This is explained by the addition of software or firmware that performs the function of calling a ringtone.

When the call ringing function is started in the phone, the first state of the hook-switch is input to determine whether the call is performed in step 401. If not in a call at step 402, the general function of the phone (step 415) is performed. In the status port input, the hook-switch is normally on-hook, but when the handset is picked up and turned off, the hook-switch is turned off. The state is recognized as a busy state.

If the busy state is maintained, a voice signal is input from the telephone line (step 404). The voice data received for signal processing performs the existing telephone function until it is buffered and filled by one frame unit. In this case, the size of one frame uses 30 ms units as an example.

 When the audio data of one frame is filled in the buffer, the encoded signal of the keyboard is detected (step 405). For example, in an electronic dual tone multiple frequency (DTMF) tone telephone, when a key button on a dial keypad is pressed to make a call, encoding tones are generated at two frequencies for each individual key button and transmitted to an all-electronic exchange. The electronic switchboard decodes this DTMF tone to detect the desired telephone number and exchange it with the other party. If the other party presses a specific key button even after the exchange is made, the electronic exchange will consider the part of the telephone call voice and deliver the sound to the other party.

That is, since the encoding tone of the key button pressed by the other party is transmitted to the other counterpart phone as it is, the present invention utilizes the keyboard encoding tone to make a ringtone call during a call. The generation and detection of DTMF tones in accordance with the keyboard is discussed in detail in the telephone-related section of the ICT book, and its detailed description is omitted.

If the encoding-tone detection routine detects the data of the current frame as the encoding-tone section of the key button (step 405), it determines whether the pattern of the key button promised to call the ringtone during a call is determined (step 406). . If it is determined that the predetermined key button is pressed, the oscillation waveform of the ring tone is generated during this period (step 408). In the conventional landline telephone, the basic oscillation waveform of the ringer is sent from the electronic switchboard to drive the ringer bell. This basic waveform generates, for example, a 20 Hz square wave for one second and pauses one second. It generates a repeating waveform of.

The fundamental waveform of the ringtone consists of square waveforms, so that 1 and 0 of the digital state are repeated, and the process of loading the frequency waveform of the ringtone tone in each state section of the square wave is a process of generating a modulation tone of the ringtone (step 412). First, the tone of the ringtone is input from the ringtone selection port (step 409), and the selected ringtone is examined to determine whether it is suitable for calling a ringtone during a call (step 410), and the modulation process multiplies the basic oscillation waveform of the ringtone by the waveform of the frequency tone. (Step 412). If you send this ringtone to the bell (ringer) sound output port of the phone (step 413), the ringtone will be called during the call.

In the present invention operated as described above, when talking to the other party using a telephone, when the other party's voice is not heard well or conveys another meaning to the other party, pressing any key button or a specific key button causes the other party's phone to ring a ringtone. The master implements the ringing function during the call to a part of the DSP processor or computer processor in the existing telephone, and the voice transmission communication in the telephone maintains the existing telephone method while maintaining a specific key on the keypad of the telephone. Detects pressing of DTMF encoding tone so that the other party's handset hears the tone of the keyboard's encoding tone with voice.

At the same time, it operates the ringtone oscillator so that the other party's selected ringtones can be heard by the other party, and focuses attention on the other party by ringtone during the call. It is a phone with a ringing function during a call, such as being able to contact the other party by ringing in an urgent situation where the situation can not be announced by voice.

The present invention is one of the technologies that assist human communication in terms of ergonomics, and because the other party is not visible during a telephone call, it is necessary to perform the emotion or communication of the individual only by voice, call ringing function during the call Is unique in that it can perform another communication by making voice and ring calls together through the phone.
Therefore, if the voice is not well understood during a call, the applicability is unique as a welfare communication technology that can convey attention to a ringtone and focus attention, or provide as a communication aid function to a person with a hearing impairment.

And the ringing call function during the call is a function necessary to inform the other party of the situation when the other handset is left unattended during the call. It is also used as an alarm phone system that can alert you to emergency situations by attempting to make a bell call in a crisis situation where it is not possible to get the other person's attention or talk to the other party.

In particular, this technology is easy to implement because its implementation can be easily applied without changing the form according to separate installation criteria in the existing telephone system. And in the case of a mobile phone system is a practical invention, such as having the convenience of providing a variety of ringtones in addition to the various services of additional ringtones. Therefore, the ringtone call phone during the call is a technology that can be utilized in a variety of real life, its ripple effect is very large.

Claims (3)

delete delete In an existing telephone circuit to which a user's bell call key button and a handset are connected, the telephone system is configured to make a telephone call with an existing telephone circuit to which the other party's bell call key button and a handset are connected through a telephone switchboard. Call ringer is installed in the ringtone driving circuit connected to the existing telephone circuit, the ringtone driving circuit during the call is installed with the electronic switchboard of the telephone line; The hook-switch call state detection unit in the telephone line has an encoding tone detection unit for a key button that separates only an encoding tone signal from a voice or noise signal, a ring tone tone oscillator for generating ring tone basic waveforms, and a ring tone for various ring tones. Connect each modulator, The ring tone tone oscillator is capable of performing a tone-modulation as a ring tone over the ring tone tone modulator to which the ring tone selector is attached, and is capable of ringing a call during a call, wherein the ring tone tone oscillator is connected to a known amplification and driving circuit. cellphone.

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