TW451562B - Voice input/output device provided with hauling preventing function and adapter for hands-free talk for mobile phone - Google Patents

Abstract

The present invention provides a voice input/output device provided with hauling preventing function and adapter for hands-free talk for mobile phone. The above devices enable a conversation with a portable telephone in hands-free state without hauling during driving of a car without requiring a dedicated speaker. The adapter 1 for hands-free talk for portable telephone is composed of a cassette adapter 3 loaded into a cassette deck for outputting voices to a speaker, and having a magnetic head for transmitting the voice output to the head for voice reproducing of the cassette deck; a microphone 21; a voice input/output circuit; a main body part 2 having a switch 22 for turning on/off the received signal of a mobile phone, and a connecting cord 5 having an earphone/microphone plug 4 for connecting the magnetic head and the microphone to the earphone/microphone output terminal of the main body of mobile phone, A hauling preventing circuit is provided for preventing voices from being outputted from a microphone 21 to the side of the portable telephone while voices are inputted from the portable telephone.

Description

4 5 15 6 2 C7 _D7 _ V. Creation instructions (1) The present invention relates to a sound input and output device with a howling prevention function, particularly to a hands-free intercom device for a mobile phone, especially The present invention relates to a howling prevention device in a mobile phone hands-free intercom device which can talk without holding by hand (hands-free) while the vehicle is traveling. Due to the popularity of mobile phones, vehicle drivers have recently increased accidents caused by using mobile phones while traveling. Here, road traffic laws have been changed in various countries to restrict the use of mobile phones while driving. However, it is not considered a violation when used in a hands-free manner. The danger of using a mobile phone while traveling has been pointed out, and the need for hands-free intercom is more important than before, so a device for implementing the hands-free intercom has also been proposed. The Ministry of Economic Affairs ’Intellectual Property Bureau ’s Consumers’ Cooperatives printed custom hands-free intercom devices, such as those with built-in microphones in mobile phones to provide hands-free functions, as well as additional installations on mobile phones for hands-free Those who use the pickup. Take the installation of this kind of pickup as an example, it has a built-in speaker, and it is composed of a main body part with an input terminal with a corded microphone and a cord with a terminal connected to the handset of the mobile phone body and the microphone terminal. Combination example. When using the device in the car, connect the wire of the skull to the input terminal of the handset and microphone of the mobile phone body, and then set the body part to the appropriate position next to the driver's seat, and install the microphone connected to the body part near the car. Faces of people who drive people, such as the front-filled frame. In addition, the power of the main body is supplied through a connection line of a plug for a cigarette lighter in the vehicle. Then * This device is used when the signal is received in this installation state. By turning on the switch of the main body, the speaker of the main unit can listen to the sound ’and talk through the microphone to talk hands-free. 4 This paper size is applicable to the national standard (CNS) A4 (210x297 public love) 451562 i C7

Printed by the Shelley Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Creation instructions (2) For the aforementioned mobile phone with a hands-free function, the sound output is restricted because the speaker is built into the mobile phone, and The phone book is also used inside the mobile phone book. Therefore, the mobile phone book Zhao must be placed near the driver. There are many restrictions on the use. Also, as for the built-in pickup of the speaker, the power supply for the dedicated speaker is taken from the cigarette lighter plug (12V / 24V), so that the output of the speaker is also limited. In addition, when this type of pickup is connected, a connection line "receives even noise" is received to prevent communication. Also, the howling phenomenon is caused by the positional relationship between the microphone and the speaker. In addition, as a power source, terminals that do not rely on cigarette lighter plugs have been proposed, and batteries for power sources have been prepared. However, there is also a problem that the cost of the device is increased due to the increase in the size of the device. Β This invention is constructed in view of the foregoing problems It is characterized by providing a hands-free microphone for a mobile phone, without the need to hold a mobile phone in hand, that is, a speaker who can talk in a hands-free manner. Also, the present invention provides a hands-free pickup for mobile phones, which is a low-voltage operator who does not need to balance a large output power source, and is light in size, and can increase the sound output while reducing Noise and humming and clear sound output. Furthermore, it is an object of the present invention to provide a hands-free intercom system for preventing hands-free intercom system in which a speaker sound is input to a microphone in a hands-free intercom system using an in-vehicle speaker. Device. The aforementioned problems can be achieved by the following devices of the present invention. Embodiment 1 of the present invention is a sound input and output device provided with a howling prevention function; the device includes: a sound wheel input portion for inputting a sound signal: and a sound input portion The voice of the Ministry of Chaoyang is applicable to this paper standard + National Standard (CNS) A4 (210 X 297 cm) --------- Order --------- L ·. ( Please read the unintentional matter on the back before filling this page) 451562 C7 D7 V. Creation Instructions (3) (Please read the note f on the back before filling out this page > Wheel output section of the sound wheel; a microphone; And a microphone output section for outputting a sound signal inputted by the microphone; and a blocking circuit is provided in the sound input and output device, and the blocking circuit is used for inputting sound from the sound input section When the audio signal is interrupted, the audio signal output by the microphone is turned off toward the microphone output section * In the present invention, when the audio signal input by the audio input section is output by the speaker, it can be interrupted The output signal from the microphone can completely prevent the sound produced by the speaker from being input to the microphone. In addition, the second embodiment of the present invention is a mobile phone hands-free intercom pickup structure, which includes: a cassette pickup, which is installed in a cassette loading device capable of outputting sound to a speaker. And has a magnetic head for transmitting sound output to the head for the sound reproduction of the cassette tape device; the body part is provided with a microphone, a sound output and input circuit, and is used for receiving mobile phones Switch for signal ON and OFF; and connecting cable, which has a receiver and microphone plug for connecting the aforementioned magnetic head, the aforementioned microphone and the handset of the mobile phone body, the microphone input and output terminals; consumption by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative and the aforementioned audio input and output circuit can be used to block the audio signal output from the microphone to the microphone terminal when an audio signal is input from the handset terminal of the mobile phone. Form 2 mobile phone hands-free intercom pickup is used to install the cassette pickup in the cassette mounting portion of the cassette loading device. When used as a mobile phone When the signal is received, the received sound is output to the magnetic head of the cassette pickup through the sound output circuit * of the main body. At the cassette, 6 paper standards are applicable to China National Standard (CNS) A4 specifications (210 X 297 public cage) 4 515 62 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs C7 D7 V. Creation instructions (4) The magnetic head for reproduction with the device side receives the signal and then connects with the cassette tape device The speaker can output "by this, the listener can be output through the speaker output of the cassette tape device. Also, the transmitted sound can be sent through the microphone of this ceremony. Then, when the sound is output from the speaker , Can prevent the sound signal from being output by the microphone, so it can prevent the sound of the speaker from entering the microphone and causing howling. Brief Description of the Drawings Figure 1 shows the speakerphone of the present invention. Fig. 2 is a diagram showing a circuit configuration of the main part. Figure 3 shows the state of the cassette pickup installed in the cassette tape loading device. Figure 4 shows the method of using the hands-free pickup in the car. Component symbols in the figure — — — — — — —— — — — imi— ^ »11111111 L- {Please read the note on the back before filling in this page) 1 ... ............. hands-free pickup 2. ...... · Body portions 201, 202 ... Cassette drive shafts 205 ... 21 -......... Microphones 211 ... 22 ... ..... button switch 23…. · 25... Sound output circuit 250 " ... battery 251, 252 ... amplifier 253 ... 20 .. ....... Cassette loading device 203 ... ...... Magnetic head 3 ............... Cassette pickup 31 ...... Box-shaped bodies 32, 33 ... Turntable 34 ... • ...

5 15 6 2 C7 P -------- D7 V. Creative Instructions (5) 35 .................... Head 4 ....... Cum microphone plug 5 .......... 6 ....... .... clip filter 10 ........ 102. " ... handset terminal 103 .. ..... ....... ΟΝ / OFF terminal 104 .... &Quot; GND terminal 30 .............. Speakers Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Best Modes for Implementing the Invention The following describes embodiments of the invention with reference to the drawings. FIG. 1 illustrates an embodiment of a hands-free microphone (hereinafter referred to as a "hand-free microphone") for Action I of the present invention. The structure of the hands-free pickup 1 includes: the main body 2, the cassette pickup 3, and a connecting wire for connecting the handset and the microphone plug 4, the main body 2 and the cassette pickup 3 which can be connected to the handset and the microphone output terminal. 5. The symbol 6 in the figure refers to a clip filter for removing noise. The Ministry of Shipbuilding 2 is equipped with a microphone 21, an LED button 23 for displaying the button switch 22, and a mobile phone for receiving signals, and a sound output circuit (described later) is built in. FIG. 2 is a schematic block diagram showing a sound output circuit 25 built in the main body 2. As shown in FIG. The sound output circuit 25 includes: a power battery (3V) 250, an amplifier 251 for increasing the sound signal of the microphone 21, and an amplifier 252 for increasing the output from the handset terminal of the mobile phone. And howling prevention circuit 253 for suppressing the echo phenomenon. The battery 250 is only required to have a voltage required for the sound output circuit 25 to operate, such as a 3V battery. In addition, the speakerphone 1 is connected to the handset and the microphone plug 4 of the mobile phone 10 so that — mil! — Λ (λ ^ · 1111111 ^ -11--III < please read the note f on the back and fill in (This page) This paper size is applicable to the national solid standard (CNS) A4 specification (210 X 297 mm) 8 Printed by the Industrial Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs! 451562, I C7 I__D7_ I '" " | V. Creation Instructions (6)! I. In this embodiment, the mobile phone 10 uses a 4-pin pair application machine.

I I species.话筒; The microphone 21 of the main body 2 is connected to the mobile phone 10 through the amplifier 251

I Microphone terminal 101 is connected. In addition, the main body part 2 is connected to the handset terminal 102 ′ of the mobile phone 10 via the amplifier 2 52 and the every-sound prevention circuit 253 to communicate with the card.

The I-type pickup 3 is connected. The howling prevention circuit 253 is connected to the connection lines of the microphone 21 and the amplifier 251 again. Howling prevention circuit 253 is used to control the output of Talk 21 *. It is used to input the signal output from the handset terminal 10 of the mobile phone 10, and will 'introduce the signal rotation, and suppress the output of the microphone 21. By. The snap switch 22 formed by a snap switch is connected to the ON / OFF terminal 103 and the GND terminal 104 of the mobile phone. The push operation of the snap switch 22, such as 1 second, can be switched to connect with the mobile phone 10. The status LED23 is used to notify the informant when there is an incoming call from the connected mobile phone. Furthermore, a beep can be set (not shown). Next, the cassette pickup 3 will be described with reference to the third circle '. FIG. 3 is a schematic diagram showing the internal structure of the state in which the cassette pickup 3 is installed in the cassette loading device 20. The cassette pickup 3 is a box-shaped body 31 having the same outline as a cassette normally installed in the cassette loading device. Also, similarly, there are turntables 32 and 33 that can be inserted into the cassette drive shafts 201 and 202 of the cassette loading device. The two turntables 32 and 33 are connected by a connecting wheel 34, and the rotation of one of the turntables 32 rotates the other turntable 33 accordingly. The cassette pickup 3 further has a magnetic head 35. The magnetic head 35 is connected to the handset terminal 102 of the mobile phone 10 through the body portion 2. As shown in Figure 3, in III —--- ί — — Order ---- --- (({谙 M read the note f on the back before filling out this page >

451562 C7 D7 V. Creation instructions (7) In the state where the cassette pickup 3 is installed in the cassette loading device 20, the magnetic head 35 is arranged adjacent to the reproduction magnetic head 203 on the cassette loading device 20 side. Insert the cassette pickup 3 composed of the above device into the cassette loading device 20 through the insertion opening 205, and then the cassette loading device 20 is in the ON state. The rotation of the drive shaft 201 causes the turntable 32 to rotate to connect the wheel 34. The turntable 33 and the driving shaft 202 are rotated for intermediation. Then, when the audio signal is supplied to the magnetic head 35, the magnetic head 203 on the side of the cassette loading device 20 makes the signal the same as the signal obtained from a normal magnetic tape. , And output towards the speaker. In addition, the rotation of the turntables 32 and 33 of the cassette pickup 3 has no direct relationship with the output of the audio signal, but when the cassette loading device 20 is put into the cassette pickup 3, it is usually placed in the cassette pickup 3. When the cassette is taped, the cassette tape setting device is similarly operated. Next, a method and operation of using a mobile phone in a car using the speakerphone 1 of this embodiment will be described with reference to FIG. 4. First, the handset and the microphone plug 4 of the speakerphone 1 are connected to the handset and the microphone terminal of the mobile phone 10. Then, the main body 2 is mounted near the front of the driver's seat, such as a position of the instrument panel near the joystick. In this state, if a signal is transmitted to the mobile phone 10, the LCD for display of the main body 2 will flash, and at the same time, the beep (not shown) will kill the driver. The driver picks up the cassette pickup 3 from the cassette insertion port 205. The cassette tape placing device 20 installed in the vehicle is inserted. After the insertion, the cassette loading device 20 is turned on. Then, the driver presses the button switch 22 of the main body 2 for 1 second, so that the mobile phone 10 is in a callable state. Β The voice signal received by the mobile phone 10 is in accordance with the Chinese National Standard (CNS) A4 specification (210 * 297 public love) (Please read the note on the back before filling this page)

ί / L · ^ ---- III Order -------- (T Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Economics Cooperatives 10 C7 D7 V. Creation Instructions (8) Department of Card Pickup 3 The magnetic head 35 is output, and the magnetic head 203 of the cassette loading device 20 receives the signal and sends it out as a sound toward the speaker 30 in the car. "Thus, the driver can hear the received sound through the speaker 30 . And the sound of the driver ’s voice is transmitted to the mobile phone 10 through the microphone 21 of the original department 2 installed at the front. When the call is ended, press the button switch 22 and press the cassette tape device 20 back. After taking the key, take out the cassette pickup 3. In addition, the cassette pickup 3 can also be half-inserted at the insertion opening 205 of the cassette loading device 20, which will not affect the use of other audio devices. And it can be prepared for easy insertion. When the signal reaches the mobile phone, the button switch 22 of the main unit 2 can be used for the call state, or the switch operation of the mobile phone body can be used instead of the button switch of the main unit 2. The operation of 22. Also, in the previous example, the handset and microphone terminals of the mobile phone are Take the case of using a 4-pin plug as an example, it can also correspond to a 3-pin plug. At this time, when there is an incoming call, the switch of the phone is operated. As described above, 'The speakerphone 1 used in this embodiment is used even when driving When there is an incoming call on the mobile phone, you only need to insert the cassette pickup 3 towards the cassette holder 20 and press the snap switch of the main body 2 to talk. There is no need to hold it by hand, so it will not hinder driving. Mobile phone conversation. The hands-free pickup 1 of this embodiment is provided with a power battery in the main body portion 2, and the power supply only needs the power required for the circuit operation of the main body portion 2, such as 3V 'and usage habits. In contrast, if a dedicated speaker is used, a very small voltage is sufficient, so that the entire device can be miniaturized. Also, for example, referring to FIG. 2, the speakerphone is equipped with a howling prevention circuit 253. The sound output by the speaker 30 inside the car enters this paper. The size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling in this page) i II — I — I — —— — — — — — Warp Printed by Shelley Consumer Cooperative of the Ministry of Intellectual Property of the Ministry of Education 11 4-5 1562 C7 D7 V. Creative Instructions (9) The microphone of Zhao Department 2 21 'may produce the so-called percussion phenomenon, but the microphone prevention circuit 253 is borrowed, It can suppress the output of the microphone during the reception, that is, the received sound is always output prior to the transmission, so it can suppress the sniffing phenomenon for a clear call. It is also used to connect the hands-free pickup 1 The connection line of the mobile phone and the cassette pickup is equipped with a clip filter, so it can effectively remove the noise invaded by the connection line. Also, in this embodiment, it is constituted to pass the received audio signal through the card The magnetic head of the cassette pickup is transmitted to the magnetic head of the cassette mounting device and is output to the speaker connected to the cassette mounting device, but in addition to the cassette pickup, the output section can be used as a sound for another audio device. The way of connecting the sound input part to the socket can also use another audio device. Furthermore, in the foregoing description, the hands-free microphone of this embodiment is taken as an example when using a mobile phone in a car, but it is not necessarily limited to use in the car, as long as an audio device with a card-type belt device is provided near the person It can be used at any time, in particular, the use object is not limited to users in the car. As described above, according to the present invention, the following various effects can be achieved. According to the sound output and input device of the present invention, since the sound signal input by the sound input section is output from the speaker, the output signal from the microphone can be blocked, so the sound from the speaker can be completely prevented from being input to the microphone. Howling phenomenon that occurs. In addition, with the microphone for hands-free intercom of the mobile phone of the present invention, when sound is output from the speaker, the sound signal is not output from the microphone, so that the sound of the speaker entering the microphone can be suppressed from generating a chirp phenomenon. This paper size applies to China National Standard (CNS) A4 specification (210 x 297 male dragons). Η (Jing Xian "Read the notes on the back before filling this page) *! -Order ·! -Line, printed by Shelley Consumer Cooperative, Intellectual Property Bureau, Ministry of Economic Affairs

Claims (1)

451562 A8 B8 C8 D8 Printed by the Ministry of Economics and Intellectual Property of the Ministry of Economics and Industry Cooperative Cooperative, patent application scope A sound input and wheel-out device with peak sound prevention function, characteristics of the sound wheel-in and wheel-out device It consists of:-a sound input section that enables sound signals to be input; an output section for outputting sound signals from the sound input section to a speaker;-a microphone; and-a sound to be input by the microphone The microphone output section of the signal turns out; and a circuit capable of suppressing the following states is provided in the audio input and output device. 'This state refers to the case where an audio signal is input from the aforementioned audio input section'. The audio signal is output to the aforementioned microphone output section. 02. A hands-free interphone pickup for a mobile phone, the structure of which includes: a cassette pickup, which is mounted on a cassette tape device that can output sound to the speaker And it has a magnetic head for transmitting sound output to the head for the sound reproduction of the cassette tape device; the head part is equipped with a microphone, a sound input and output circuit, and a The switch for receiving signals of the telephone is ON and OFF; and the connecting line 'has an earphone and a microphone plug for connecting the aforementioned magnetic head, the aforementioned microphone and the handset, the microphone input and output terminals of the mobile phone body; and the aforementioned sound The input and output circuit can be used for suppressing the output of the audio signal output by the microphone to the microphone terminal when the audio signal is input by the listener of the mobile phone. (Chu Xian »Read the Note $ on the back side and fill in this I) Order. Line U. This paper is a quick-to-use t-face" Home Rolling Standard (CNS) A4 (210X297) and 13-