KR200295672Y1 - Earphone-microphone with selectable record and/or play-back function - Google Patents

Abstract

The present invention relates to an ear microphone having a selective recording and reproducing function. In the prior art, the ear microphone does not have a recording function, so when an additional voice recorder is required when recording a call, the additional voice recorder or a separate recording function is required. Had to buy and use a mobile phone. In addition, a mobile phone recording device with a recording function must be continuously powered up in an attempt to not record and play back, and it cannot store the contents of simultaneous calls with the other party, and there is no terminal for connecting an external microphone or recording device, and the played contents. There is no function to transfer to a mobile phone.

The present invention solves the problems caused by the conventional technology as described above, and not only selectively record the contents of the call of the mobile phone (to enable the recording of conversations on both sides of the call at the same time), but also simply store the contents when the memo is needed when moving. It is convenient to carry and play when needed, or to be stored in a separate recording device. It is designed to save the power consumption when not playing the recording, and to deliver the recorded contents to the mobile phone. It consists of an ear microphone signal unit that performs earphone (speaker) and microphone (microphone) functions, and a recording and reproducing unit for recording and storing the contents of a call and playing it when necessary, and a power unit for supplying power.

Ear microphone signal section

Earphones (speakers) and microphones (microphones);

An incoming / outgoing switch for making a call without opening the phone folder (or pressing a call key);

-It consists of a plug of ear microphone that can be plugged into a mini (ear microphone) jack for mobile phones

Recording playback section

An audio mux and mixer unit for selecting, selectively mixing and amplifying recording signal sources;

An A / D converter section for digitally converting the amplified signal source (analog);

A non-volatile memory section for storing the contents of the digitally converted signal source;

A D / A converter unit for converting a digital signal into an analog signal source during reproduction;

A microprocessor and oscillator for controlling the entire recording playback portion;

A key operation unit for transmitting a command during recording and playback, and a display unit for displaying the performance;

-Consists of an external recording terminal that can be connected to an external speaker recording device,

Power supply

A battery for supplying power to the recording and reproducing unit;

-It is composed of a power switch that can selectively supply power only when it is used.It is suitable to carry, and it can record the contents of a call of a short time and a simple note when moving, and play and save it when necessary. It is effective.

Description

Earphones with selectable record and / or play-back function

The present invention relates to an ear microphone having a selective recording and reproducing function. In the related art, when a memo is required for a mobile phone call or a mobile phone, an expensive voice recorder is separately purchased or an expensive recording function is used. You had to buy a new hand phone to use it. In addition, a mobile phone recording device with a recording function must be continuously powered up in an attempt to not record and play back, and it cannot store the contents of simultaneous calls with the other party, and there is no terminal for connecting an external microphone or recording device, and the played contents. There is no function to transfer to a mobile phone.

The present invention relates to an ear microphone having a selective recording and reproducing function for carrying out a selective recording and reproducing while carrying a recording (note) for a short time.

1 is an exemplary view showing a configuration of a conventional ear microphone, and an earphone (speaker) 106 as shown therein; A microphone (microphone 105); An ear microphone signal line unit 103; A plug terminal 104 of an ear microphone that can be plugged into a mobile phone; Consisting of the incoming / outgoing switch 100, the operation process of the conventional apparatus configured as described above is as follows.

The current cellular phone 101 is configured to transmit and receive mono earphone 106 and microphone 105 signals to the cellular phone via the signal line 103 through the mini (ear microphone) jack 102. Upon reception, the earphone signal 107 of the mobile phone 101 is transmitted to the earphone 106 of the ear microphone so that the user of the mobile phone can listen to the received contents, and when the transmission, the microphone 105 signal of the ear microphone is transmitted to the mobile phone 101. It is configured to transmit the transmission content through the mobile phone by transmitting to the microphone signal (108). That is, the mobile phone can be transmitted and received without the need for an external power source. The incoming / outgoing switch 110 is configured to receive, hang up, or redial a final call number by a call forwarding switch only operation without opening a mobile phone folder (or pressing a call key) in a mobile phone 101 supporting an incoming / outgoing call function. A switch that sends a signal to a mobile phone. Therefore, the current ear microphone does not require a separate power source for the call of the mobile phone, but can not selectively record and play the simultaneous call of the mobile phone, purchase a separate expensive voice recorder (voice recorder) or use a high price You need to purchase a new hand phone with a recording function of your phone to record and play back.

As described above, in the prior art, when a call memo or a memo is simply required when moving, a separate expensive voice recorder must be purchased or a new handset with expensive recording function must be purchased. There was a problem. In addition, since a mobile phone recording device having a recording function must be continuously supplied with power in an attempt not to record and play, it is difficult to make it small and light due to high power consumption, and is troublesome to carry. In addition, it is not possible to store the contents of simultaneous calls with the other party, and there is no terminal for connecting an external microphone or recording device, which makes it difficult to store and store the recorded contents, and there is no function of delivering the played contents to the mobile phone.

Therefore, the present invention was devised to solve the conventional problems as described above, and is easy to carry by integrating the recording and playback functions in the ear microphone, as well as the contents of the call of the mobile phone in a short time, a simple memo is required when moving. Even when recording and storing the contents and playing them back when necessary or storing them in a separate recording device through an external recording terminal, and reducing the power consumption by applying power only during recording and playback, not only simultaneous recording, but also the recording source (source) The purpose is to selectively select and deliver the recorded contents to the other party through the microphone of the mobile phone.

1 is an exemplary view showing a configuration of a conventional ear microphone

2 is an exemplary view showing the entire circuit of an ear microphone having a selected recording and playback function of the present invention;

3 is an exemplary view showing a circuit of an audio mixer (Mixer) and a mux unit of the present invention;

4 is an exemplary view showing the operation of an audio mixer (Mixer) and mux (MUX) of the present invention

5 is an exemplary view showing a circuit of an audio mixer unit of the present invention.

Figure 6 is an exemplary view showing a recording and playback main switch of the present invention

7 is an exemplary view showing a power supply unit of the present invention

8 is an exemplary view showing the operation of the recording playback unit of the present invention

<Explanation of Signs of Major Parts of Drawings>

100: incoming and outgoing switch 101: mobile phone

102: mini (ear microphone) jack for mobile phones

103: earphone and microphone signal line of the ear microphone

104: plug terminal of the ear microphone

105: microphone (microphone) of the ear microphone

106: Ear Microphone (Mono)

107: earphone signal of the mini (ear microphone) jack for mobile phones

108: microphone signal of the mini (ear microphone) jack for mobile phones

109: ground signal of the mini (ear microphone) jack for mobile phones

100: mobile phone connector of mobile phone

200: power supply 201: mobile phone

202: mini (ear microphone) jack for mobile phones

203: ear microphone signal unit

204: plug terminal of the ear microphone

205: microphone of the ear microphone (microphone)

206 Earphones (Mono)

207: Earphone signal of mini (ear microphone) jack for mobile phone

208: microphone signal of the mini (ear microphone) jack for mobile phones

209: Ground signal of the mini (ear microphone) jack for mobile phones

210: incoming and outgoing switches

211: Audio Mixer and MUX Part

212: power supply ground 213: A / D converter

214: microprocessor 215: D / A converter section

216: Oscillator 217: External recording terminal (connector)

218: non-volatile memory (flash memory)

219 display unit 220 key operation unit

221 output amplifier

222: external speaker (speaker)

223: power supply unit power supply 224: output signal for reproduction

225: recording and playback unit

226 mobile phone connector of the mobile phone

227: control signal line of the audio mixer and mux part

300: 4-terminal toggle switch (4 contacts move from NC to NO when ON)

301: MUX for Earphones

302, 304: Amplifier

303: audio mux for the microphone

305: Audio mixer section circuit

X: Earphone signal of mobile phone during recording and playback

Y: Microphone signal of mobile phone during recording and playback

XY: Audio Mixer Output Signal

400: Audio mixer (Mixer) and MUX sub-program start step

401: Determination Step of Earphone and Microphone Recording in Mobile Phone

402: recording judgment step only for the earphone of the mobile phone

403: earphone and microphone recording step of the mobile phone by the audio mixer control signal (227_b) (audio mux 504 e-d, 505 e-c and audio mixer 506 I1-O connection)

404: Recording step of only mobile phone earphone by audio mixer control signal (227_b) (audio mux 504 e-c and audio mixer 506 I0-O connection)

405: Microphone only recording step (note function) by audio mixer control signal (227_b) (audio mux 505 e-d and audio mixer 506 I2-O connection)

406: Step for judging the listening signal source to the mobile phone earphone

407: Audio mux 301 terminal b-z connection step by audio mixer control signal 227_a (phone earphone signal listening)

408: Audio mux 301 terminal a-z connection step by audio mixer control signal 227_a (listening of playback contents)

409: D / A converter on step

410: Determination step of the microphone output of the recording content mobile phone

411: Audio mux 303 terminal b-z connection step by audio mixer control signal 227_c (recording contents are output through the microphone of the mobile phone)

412: Audio mux 303 terminal a-z connection step by the audio mixer control signal 227_c (outputs the microphone contents of the microphone through the microphone of the mobile phone)

413: Audio program (Mixer) and MUX sub-program end step

500, 501: variable resistance 502, 503: resistance

504, 505: Audio mux (demux)

506: Mixer 507: Amplifier

508: Coupling Capacitor

227_b1, 227_b2, 227_b3, 227_b4: control signals by the microprocessor 214 (represented as 227_b)

600: Record playback main switch (toggle switch 601 and 4-terminal toggle switch 300 are turned on simultaneously when on)

601: recording switch power switch

700 battery 701 voltage level converter

702: power disconnect connector from the mobile phone connector

800: subprogram start step of the recording and playback section 225

801: Recording and playback main switch 600 on judgment step

802: Recording step 225 off step

803: recording playback key several seconds continuous on judgment step

804: Step for judging no audio input for several seconds

805: Auto search key several seconds continuous on judgment step

806: Stop recording function Step 807: Step to perform recording function

808: Steps to find the necessary content by playing the recorded message only a few seconds

809: display stop step during recording on display

810: display step during recording on the display unit

811: Step for performing the sequential play function

812: Step to save recording contents in non-volatile memory (flash memory)

813: Perform all recording power saving steps (If the audio input does not reach a certain level, it can be set to perform all power savings.)

814: Perform a conventional ear microphone operation.

815: Subprogram termination step of the recording and playback section

The configuration of the present invention for achieving the above object is an exemplary view showing the entire circuit of the ear microphone having the selected recording and playback function of the present invention of Figure 2, Figure 3 circuit of the audio mixer (Mixer) and mux (MUX) section 5 is an ear microphone signal unit 203 for transmitting and receiving a sound by plugging into a mini (ear microphone) jack of a mobile phone as shown in an example of a circuit of an audio mixer unit of FIG. 5; Recording and reproducing unit 225 for recording and storing contents when a memo is simply required when the contents of the call and the mobile are stored, and then reproducing them when necessary or storing them in a separate external recording device; And a power supply unit 220 for supplying power to the recording and playback unit 225.

The ear microphone signal unit 203 includes an earphone 206 and a microphone 205; An incoming / outgoing switch 210 for making a call without opening a cellular phone folder (or pressing a call key); It consists of a plug 202 of an ear microphone that can be plugged into a mini (ear microphone) jack for a mobile phone.

The recording and playback unit 225 selects and amplifies a signal source through an audio mixer 305 and an audio mux 301 and 303 for selectively mixing the recording signal sources, and then earphones of the ear microphone signal unit 203. And an audio mixer and a mux unit 211 connecting the microphone signal to the earphone and the microphone terminal of the mobile phone. An A / D converter section 213 for digitally changing the selection, mix, and amplified signal sources (analog); A nonvolatile memory (218) for storing contents of the digitally changed signal source; A D / A converter unit 215 for converting a digital signal into an analog signal during play-back; A microprocessor 214 for controlling the entire recording and reproducing unit 225, and an oscillator 216 for providing a time period for driving the microprocessor 214; A key operating unit 220 for transmitting recording and reproducing commands, and a display unit 219 for displaying performance contents; An amplifier 221 for amplifying contents of the reproduced D / A converter 215; It consists of an external recording terminal (connector, connector) 217 that can be connected to an external speaker (speaker) or a separate recording device.

The power supply unit 200 includes a battery 700 for supplying power to the recording and playback unit 225; It is composed of a recording and playback main switch 600 to selectively supply power only when used. 6, the recording and playback main power switch (toggle switch 601) and the four-terminal toggle switch 300 are simultaneously turned on when the recording and playback main switch is on. Therefore, power is supplied to the recording and playback unit 225, and the signal of the earphone and microphone of the ear microphone having the selective recording and playback function of the present invention is also configured to operate through the recording and playback unit 225. In addition, when the power level connector 701 and the power disconnect connector 702 are used at the mobile phone connector as an option to use the power of the mobile phone connector 226, the power of the mobile phone 201 may be used. Is characteristic. As shown in the circuit diagram of the audio mixer (Mixer) and the mux (MUX) of Fig. 3, the four-terminal toggle switch 300 is turned on during cellular phone recording and playback, so that four contacts are normally closed. NO (Normal Open) is moved from the signal through the recording and playback unit 225. The audio mux 301 is used to select the earphone signal from the microphone signal (including the mobile phone microphone signal) or the reproduction output signal 224, and the control signal 227-a is operated by the microprocessor 214. Also, the audio mux 303 is used to select the microphone signal source selection of the mobile phone 201 from the ear microphone 205 or the recorded signal 224, and the control signal 227-c is controlled by the microprocessor 224. It works. The signals through the mux 301, 303 are amplified by the amplifiers 302, 304. The audio mix 305 measures the signals X and Y received through the earphone and the microphone through the variable resistors 500 and 501 and the resistors 502 and 503 as shown in the circuit diagram of the audio mixer of FIG. 5. After adjusting, the audio mixer 506 selects all the contents of the phone conversation (earphones and microphones), the contents of the microphone only, or the contents of the earphones through the audio mux (Demux, 504 and 505). The control signals 227_b3 and 227_b4 of the processor 214 are adjusted. Here, the signal obtained by selectively mixing is amplified 507 by separating only the signal source by a coupling capacitor 508. Referring to the operation process and the effect of the embodiment according to the present invention configured as described above are as follows.

As shown in Figs. 2, 3, 4, 5, 6, 7, and 8,

-The ear microphone signal unit 203 is plugged into the mini (ear microphone) jack 204 of the mobile phone 201 to transmit and receive a sound (signal source) through the mobile phone 201,

-The recording and reproducing unit 225 records the contents of the call when the mobile phone 201 and the mobile phone 201 when necessary simply after recording, to play or store in a separate external recording device, if necessary,

-The power supply unit 220 supplies power to the recording and playback unit 225.

As shown in FIGS. 2, 3, 4, and 5, a signal separated through the audio muxes 504 and 505 by the control signal 227 of the microprocessor 214 is passed through the audio mixer 506. You can select both earphone (receipt of mobile phone) contents and microphone (cell phone transmission contents or short memo recording contents) (I1-O of 506), or only earphone contents (receive contents of mobile phone) (I0-O of 506) or microphone The content of only (note content) 506 I2-O is selected as the control signal 227 of the microprocessor 214. That is, when the signals 227_b1 / 2/3/4 are applied from the microprocessor 214 such that the ed of the 504 and the ec of the 505 and the I1-O of the 506 are connected, the voices of the microphone and the earphone of the mobile phone are simultaneously mixed. After that, only the signal source is separated from the coupling capacitor 508 and then amplified by the amplifier 507 to be a signal to be recorded by the recording / reproducing unit 225. The signal is converted into a digital signal in the A / D converter 213 and then stored (recorded) in a nonvolatile memory (flash memory) 218. The signal to be listened to by the earphone 206 is selected by driving the audio mux 301 with the control signal 227_a of the microprocessor 214 from the signal of the mobile phone or the reproduction output signal 224. The signal to be transmitted to the microphone of the mobile phone is selected by driving the audio mux 303 from the signal of the microphone 205 or the control signal 227_c of the microprocessor 214 from the reproduction output signal 224. In particular, when the recording and playback is not necessary, the four-terminal toggle switch is connected to the NC terminal when the recording and playback main switch 600 is turned off (off), so that the recording and playback section 225 does not pass, thus consuming no power. Do not. When the external recording terminal (connector) 217 is used, the signal stored in the recording is transmitted to an external speaker or an external recording device. The recorded data stored in the flash memory 218 is read by the address of the microprocessor 214, and then amplified by the amplifier 221 via the D / A converter 215. The converted analog audio signal is transferred to the earphone 206 or the external recording terminal (connector) 217. Via the need not to record and play, the power of the power supply unit 200 is not applied (transmitted) to the recording and playback unit 225 (600, when the recording and playback main switch off) to operate like a conventional ear microphone. Regardless of the mobile phone 201, recording only through the microphone 205 (when the NO connection of 300, the e-d of 505, and the I2-O connection of 506) makes it possible to simply record a memo while moving. In addition, when the reproduction output signal 224 is sent to the mobile phone (NO connection of 300, z-b connection of 303), the pre-recorded content can be output and transmitted to the mobile phone.

As shown in Figs. 2 and 8, the operations of the key operation unit 220 and the display unit 219 of the recording and reproducing unit 225 are performed only when the recording and reproducing key of the key operation unit 220 is continuously on for several seconds or more (803). When the recording function is possible and there is no audio input for several seconds during recording (809), that is, when the input signal level of the A / D converter 213 is smaller than a certain value, the microprocessor 214 detects this. By pausing the recording function can be set in the key operation unit 220 to record only the necessary content. The display suitable for performing each function is displayed externally by the control of the microprocessor 214 through the display unit 219. When the auto search key of the key operation unit 220 is turned on, the playback function is performed for only a few seconds in the order of being stored sequentially, or sequentially to perform a search from the beginning so that a desired message can be quickly found.

The power supply unit 200 supplies power to the battery reproducing unit 225 to the battery 700, and operates the recording and reproducing unit 225 by turning on the recording and reproducing main switch 600 only when necessary. Therefore, the consumption of the battery 700 is reduced. When the recording and playback unit 225 is continuously driven by using the power of the mobile phone 201, the recorded content of the recording and playback unit 225 can be repeatedly listened to, so that it can be used for language study.

The microprocessor 214 of the recording and reproducing unit 225 manages the entire recording and reproducing operation so that the audio mixer and the mux unit are based on the input signal of the key control unit 220 so that the input audio signal can be stored and restored close to the original sound. The control signal 227 of the 305 is made, the operation contents are displayed by operating the display unit 219, and the input signal during recording is output through the A / D converter 213 through a nonvolatile memory (flash memory, 218, and reads the contents of the selected nonvolatile memory 218 and transfers the contents to the earphone 206 or the external recording terminal (connector) 217 through the D / A converter 215. Do this. 222 of FIG. 2 shows that the external recording terminal (connector) 217 can be connected to an example using an external speaker. The recording and playback time varies depending on the audio sample frequency (bit rate). In the case of an 8Kbps bit rate, when a nonvolatile memory of about 4Mbit to 8Mbit is selected, several contents can be stored.

The ear microphone having the recording function of the present invention described above realizes the following effects while being inexpensive and lightweight.

1) Connect the mobile phone mini (ear microphone) jack to selectively record the incoming or outgoing contents (or both at the same time).

2) Lightweight and easy to carry as it consumes power (battery) only during recording and playback.

3) Simply record the contents that require memo when you move only by the microphone of the ear microphone with recording function.

4) Recorded contents can only be listened to by earphones attached to the ear microphone with recording function, and can be listened to by connecting a separate speaker to the outside, or recorded on the ear microphone having a recording function by connecting a separate recording device to the outside. You can save the contents.

5) It uses a non-volatile memory (flash memory) built into the ear microphone that has a recording function, and selectively records and plays back only when necessary, so that it is suitable for being portable by suppressing power consumption. .

6) If you record the necessary information in the non-volatile memory (flash memory) attached to the ear microphone with recording function, you can use it when necessary (theft, loss, accident, etc.) To respond.

7) If you use a cell phone or an external power supply (or battery), you can use it for language study because you can repeatedly listen to the recorded contents of the ear microphone with recording function.

8) As the existing ear microphone has an incoming / outgoing switch, a mobile phone that supports the incoming / outgoing call function does not open the mobile phone folder (or press a call key), but only the incoming / outgoing call switches the phone to answer or end the call, You can make a redial call.

9) With automatic message search function, the head of each message is played for a few seconds to quickly search for the desired recording.

10) Even if the main switch is on, recording can be made only when the sound level is over a certain level during recording, thereby reducing battery consumption.

Claims (4)

An audio mixer (MIXER) unit 305 for selecting and mixing a required signal from an earphone signal of a mobile phone and a microphone signal of an ear microphone; A nonvolatile memory 218 which is a place for storing the contents of the audio mixer 305; A reproduction output signal (224) for converting (215), amplifying (221), and outputting the contents stored in the nonvolatile memory (218) into an analog signal; Including the ear microphone audio mux 301 of the earphone and the ear microphone audio mux 304 of the microphone, the reproduction output signal 224 is sent to the ear microphone 206 of the ear microphone. The user can listen to the recorded content, or send the earphone signal of the mobile phone to the earphone 206 of the ear microphone so that the user can hear the contents of the mobile phone using the power of the ear microphone, or the playback output signal 224 ) To send a microphone signal of the mobile phone to output the pre-recorded content to the mobile phone, or to send the microphone signal of the ear microphone to the audio mixer 305 to record the user's voice (sound) to the ear microphone ( MUX); Selecting the recording and playback function of the ear microphone selectively, and recording and playback main switch directly connects the microphone and earphone signals of the mobile phone to the microphone and earphone signals of the ear microphone without the need for power. Ear microphone with selective recording and playback, characterized in that having 600. The method according to claim 1, An ear microphone having a recording and playback function, characterized in that the ear microphone has a function and a terminal (connector) that can be used by connecting a speaker or a recording device separately from the outside. The method according to claim 1, Ear microphone with recording and playback, characterized in that the battery level of the mobile phone can also be used through the voltage level conversion function. The method according to claim 1, Even if the main switch is on (on), the ear microphone having a recording and playback function characterized in that it is possible to selectively record only if the sound to be recorded is above a certain level.