JPH04135055U - telephone equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To enable sending and receiving without touching the telephone device at all. [Structure] An external speaker 28 and an external microphone 8 are provided which are controlled by a central processing unit 13, and a storage device 24 for a specific audio signal and an audio signal recognition device 30 for identifying a specific audio signal are connected to the central processing unit. However, when a specific audio signal is input, the hook switch 9 is closed via the central processing unit.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a telephone device, particularly a hands-free telephone device.

0002

[Conventional technology]

Conventional hands-free telephone devices allow you to talk without holding the receiver in your hand. , certain hands-free pushbutton switches (on-hook) on telephone equipment. The external speaker installed on the main body of the telephone device and the external It is configured so that calls can be made using the external microphone.

0003

[Problem that the idea aims to solve]

However, if the user of the telephone device wants to use the hands-free function, When you cannot take your hands off the telephone (especially when receiving calls), and when you are away from the telephone device. There are many times when However, with conventional hands-free telephone devices such as those mentioned above, , a hands-free push-button switch is provided on the main body of the phone, making it easy to use. The user must go to the telephone device and press a pushbutton switch. First, there was the problem that the hands-free function could not be fully utilized. This idea was created in view of the circumstances mentioned above, and its purpose is allows hands-free calling even when the user does not have to take his hands off the phone and is away from the telephone device. The purpose of the present invention is to provide a telephone device that can be used to

0004

[Means to solve the problem]

In this invention, in order to achieve the above-mentioned purpose, an external speaker for incoming call amplification was developed. When configuring a telephone device equipped with a speaker and an external microphone for transmitting audio, storage means for storing an audio signal; and the specific audio signal stored in the storage means. and the audio signal input via an external microphone to recognize a specific audio signal. audio signal recognition means, and when the audio signal recognition means recognizes input of a specific audio signal. control means for closing the hook switch of the telephone device when The main point is that it enables hands-free phone calls.

[0005]

【Example】

Hereinafter, one embodiment of this invention will be described in detail with reference to FIG. The example shown in Figure 1 is a multifunctional telephone device with a speech network that controls the sending and receiving signals. It is equipped with a parking device 1. This speech network device 1 has a parallel line cord a. , b are connected, and the other ends of parallel wire cords a and b are modular jacks. It is detachably connected to a telephone line 3 via 2. speech network equipment 1 converts the received signal from the telephone line 3 into an audio signal during a call, and transmits the audio to be transmitted. A means of converting the signal into a transmission signal and sending it out to the telephone line 3, when the telephone line contract is a touch-tone phone. If you have a line contract, DTMF (Dual Tone Mult) i-Frequency) tone signal from the DTMF generator 22, which will be described later. It also plays the role of receiving signals and sending them to telephone line 3. Speech network device 1 is 2 speakerphone processor 4 via a set of parallel leads c, d and e, f; It is connected to the.

[0006] The speakerphone processor 4 is a handset with a speaker 5 and a microphone 6. connected to net 7. In addition, the speakerphone processor 4 has a hands-free An external microphone 8 that can be used to send calls is also connected. Also, parallel line code a has a speed A hook switch 9 is connected upstream of the network device 1 . The hook switch 9 is activated when the handset 7 is lifted or when the when a certain audio signal is input, or when the telephone device's on-hook switch is activated. This is a switch that is turned on when the button (not shown) is pressed, and is turned on when the phone is not in use. is in break state. This hook switch 9 is connected to the central processing unit 1 as described later. It is under the control of 3.

[0007] Parallel line cords a and b have a bridge circuit for detection in the front stage of hook switch 9. A parallel circuit 10 is connected in front of this detection bridge circuit 10. A tone ringer section is also connected to the line cords a and b via the detection bridge circuit 10. 11 is connected. The tone ringer section 11 receives a call from the exchange via the telephone line 3. When receiving the calling signal, it outputs a calling detection signal to the central processing unit 13, which will be described later. The speaker 12 is then driven to generate a ringing tone.

[0008] The structure described above is the basic structure of a telephone, but this example is a multi-function telephone, so Therefore, devices have been added to perform multiple functions. These additional devices The chair is operated under the control of the central processing unit 13, but the power transmitted from the exchange side is However, there is not enough power, so these devices are powered by AC power. It has become.

[0009] AC power is obtained via an AC adapter 14. One end of AC adapter 14 is connected to the AC plug 16 via the AC cord 15, and the AC adapter 1 The other end of 4 is connected to the telephone's DC power terminal (not shown) via a power jack (not shown). (omitted). The AC adapter 14 converts alternating current into direct current, and generates a direct current voltage V. dc and activate multiple functional devices. Also, the supply voltage V from the AC power supply DC has multiple functions added when the supply of AC power is cut off due to a power outage, etc. In order to prevent the device from malfunctioning, it is backed up by a secondary battery 17. It has been uploaded. The secondary battery 17 is a cut-off battery consisting of a combination of a plurality of diodes Di. A replacement circuit 18 is provided. The switching circuit 18 normally switches the AC power supply to the functional device. In addition to charging the secondary battery 17, if there is a power outage, the secondary battery 17 will be charged. A battery 17 provides power.

0010 A plurality of functional devices operated by the above-mentioned AC power supply are connected to the central processing unit 13. controlled by That is, the central processing unit 13 has a key matrix switch. 19 are connected via a data bus 20, and the key matrix is When receiving the input from the switch 19, the central processing unit 13 functions as a dialer and dials the dialer. The dial information is sent to the DTMF generator 22 connected by the data bus 21. Ru. The DTMF generator 22 generates a DTMF signal and sends the speech network equipment. A DTMF signal is sent from station 1 to telephone line 3. The central processing unit 13 has data A storage device 24 is connected via a bus 23. Storage device 24 stores specific audio signals. I remember the number.

[0011] The central processing unit 13 connects the speech network device 1 and the speech network device 1 via a data bus 25. It is connected to the melody IC 26 and the hold button of the key matrix switch 19 (not shown) is pressed, the melody IC 26 is activated to emit a melody. , sends out the melody to the telephone line 3 via the speech network device 1.

0012 Further, between the speech network device 1 and the speakerphone processor 4, An audio amplifier 27 is connected to the lead wires c and d. This o The audio amplifier 27 is also connected to the speakerphone processor 4 and external speaker 28. It is continued. Then, the on-hook switch in the key matrix switch 19 When set to speakerphone mode by operation, external microphone 8 and external speaker You can use the mobile phone 28 to make calls in a hands-free state, that is, without using your hands. Wear. In this case, the speakerphone processor 4 is connected externally to prevent acoustic coupling. When the signal to the external speaker 28 is large, the volume of the microphone 8 is attenuated and When the signal from the audio amplifier 27 is large, the gain of the audio amplifier 27 is attenuated. make a work

[0013] On the other hand, between the speech network device 1 and the speakerphone processor 4 An audio signal recognition device 30 is connected to the lead wires e and f. Also, this The voice signal recognition device 30 is connected to the central processing unit 13 by a data bus 29. It is. The audio signal recognition device 30 separates the audio signal input from the external microphone 8. A voice analysis unit that analyzes the voice signal, a voice signal analyzed by this voice analysis unit, and the central processing unit 13 is compared with the audio signal read out from the storage device 24 via the It has a comparison and matching section that outputs a match detection signal to the central processing unit 13 when both If the signals match, the hook switch 9 is activated via the central processing unit 13. and set the telephone device to the receiving or calling state. Note that the The stored audio signal is sent to the audio registration switch in the key matrix switch 19. In the voice registration mode set by operation, the input from the external microphone 8 and This is an audio signal analyzed by the audio analysis unit.

[0014] Next, the operation of this embodiment configured as above will be explained. When the telephone device is not in use, the hook switch 9 is in the break state, and the telephone device is in a standby state, and the central processing unit 13 monitors the functional devices under its control. ing. In this state, when there is an incoming call, that is, a call is received from the exchange via telephone line 3. When the number is input, the tone ringer section 11 drives the speaker 12 to emit a ring tone. At the same time, a call detection signal is sent to the central processing unit 13. Central processing unit 13 When receiving the call detection signal, the voice signal recognition device 30 and the speakerphone processor -4 is placed in a standby state, that is, in a state where it is waiting for input of an audio signal from the external microphone 8.

[0015] If the user issues a predetermined audio signal in this state, this audio signal will be sent to the external Voice signal recognition device 30 via microphone 8 and speakerphone processor 4 sequentially After being input into and analyzed by the central processing unit 13, it is read out from the storage device 24. compared with the recorded audio signal. The input audio signal matches the stored audio signal In this case, the hook switch 9 is activated by a control signal from the central processing unit 13. and put the telephone device into talking mode. At the same time, the central processing unit 13 The audio amplifier 27 is driven through the network device 1, and a call is made from the external speaker 28. make the person's voice utter. The user then decides to send a message using the external microphone 8. This allows you to make calls in a hands-free state.

[0016] Of course, in addition to the above-mentioned method of putting the telephone device into a talking state using the audio signal, Lift the handset 7 and set the hook switch 9 or key matrix. Press the on-hook switch of hook switch 19 to make hook switch 9. You may put the telephone device into a talking state by doing this.

[0017] By the way, in order to end the call state, you need to store a specific voice signal for ending the call. The telephone device is stored in the telephone device 24, and when the user utters the voice signal, the telephone device All you have to do is return it to standby mode. Also, if there is no sound for a certain period of time, the call will end. You can also program it so that the other party hangs up the handset. It may be programmed so that the call ends automatically when the number is reached. Of course, you can pick up the handset 7 and put it down again as before, or use the telephone The call state may be terminated by pressing an on-hook switch provided at the end of the call.

[0018] In addition, in the embodiment described above, the external microphone 8 and the external speaker 28 are each However, if multiple sets of these are provided and configured to be movable, it will be possible to , you can make calls even from places where audio cannot reach the telephone device directly, such as from another room. is possible. In addition, in the above-mentioned embodiment, only the hands-free call when receiving a call was explained. Of course, you can also make hands-free calls when making outgoing calls. In other words, the voice for outgoing calls A signal is determined and the hook switch 9 is set when this audio signal is input. In addition, the voice signal recognition device 30 is programmed to If the signal is configured so that it can be identified and recognized, it can be transmitted verbally. . At this time, the voice signal recognition device 30 may erroneously recognize the numbers spoken by the user and send the message. If there is a risk that the number will be lost, the recognized digits may be sent to the external speaker 28 using voice synthesis. All you have to do is make the sound emit from the

[0019]

[Effect of the idea]

As explained above, according to this invention, an external speaker for incoming audio amplification and a transmitting When configuring a phone equipped with an external microphone for audio transmission, specific audio signals can be memorized. and a specific audio signal stored in this storage means and an external microphone. Audio signal recognition means that recognizes a specific audio signal by comparing it with the audio signal input by and when this voice signal recognition means recognizes the input of a specific voice signal, the telephone Since the configuration includes a control means for closing the lock switch, the original meaning is not changed. It is possible to provide a telephone device with a hands-free function.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram of a telephone device illustrating an embodiment of this invention.

[Explanation of symbols]

1 Speech network device 3 Telephone line 4 Speakerphone processor 9 Hook switch 13 Central processing unit 24 Storage device 30 Voice signal recognition device

Claims (1)

[Scope of utility model registration request] Claim 1: A telephone device comprising an external speaker for amplifying incoming sound and an external microphone for transmitting outgoing sound, comprising: a storage means for storing a specific audio signal; and a specific audio signal stored in the storage means. an audio signal recognition unit that recognizes input of the specific audio signal by comparing it with an audio signal input through the external microphone; and when the audio signal recognition unit recognizes input of the specific audio signal; , a control means for closing a hook switch of the telephone device.