KR101711574B1 - Apparatus and method for interfacing compatible receiver - Google Patents

Abstract

The present invention relates to a receiver-compatible interface device and method, and more particularly, to a receiver-compatible interface device and method, which includes a voltage measuring unit for measuring a compatible mode signal and a voltage generated from each switch signal, a controller for matching, And a storage unit for storing matching information on the function. According to the present invention, various functions of the connected devices can be controlled by using a remote (switch) installed in the receiver, so that the convenience of the user can be increased.

Description

[0001] APPARATUS AND METHOD FOR INTERFACING COMPATIBLE RECEIVER [0002]

The present invention relates to a receiver compliant technique, and more particularly, to a receiver compliant interface device and method for enabling compatibility with various receivers and controlling various functions of a connected device to which a receiver is connected.

In using a portable device, a receiver including an earphone, a headphone, and the like is mainly used as a listening device.

Also, in recent years, as the penetration rate of portable devices including smart phones has increased, many earphones are provided as bundles. In particular, the bundled earphone of the smartphone is equipped with a microphone for making calls, and a hook function switch for replacing the hook switch of the ordinary telephone.

Meanwhile, smart phones can be used as multipurpose portable terminals. You can play games on your smartphone, download and listen to music, and listen to music streamed online. Therefore, the bundled earphone is equipped with a volume-up switch and a volume-down switch to adjust the volume, as well as a hook function switch. On the other hand, the hook function switch, the volume increase switch, and the volume decrease switch are also called "remote". However, the problem is that the remote (switch) formed in the bundle earphone provided for each manufacturer of the smartphone is not standardized.

Earphones / headphones are normally connected to the connected equipment with three or four wires, two of which are audio signal lines on the left and right, and one is a common ground line (GND). In addition, a microphone signal line is connected to the bundled earphone with a microphone and connected to the connected device through four wires. Because of this configuration, earphones or headphones do not have a clearance line to accommodate additional switches in the usual way. Of course, it is possible to increase the wiring for the switch mounting, but the connector part connected to the connecting device is out of the standard. In other words, when there is no bundled earphone, a general earphone can not be purchased and used, and earphone / headphone of high sound quality can not be easily purchased. For this reason, the three switches that are used as remote for the bundled earphone, ie the hook function switch, the volume up switch and the volume down switch, are all connected together with a resistor between the microphone line and the ground line (GND).

Fig. 1 is a conceptual diagram of wiring of a remote and a receiver interface device.

1, the remote 1 includes a microphone MIC, switches SW ₁ , SW ₂ , SW ₃ , ... SW _N , switches SW ₁ , SW ₂ , SW ₃ , ..., series-connected resistors to the _{SW n) (R 1, R} 2, R 3, is composed of ... R _n), receiver interface device 2 _{MIC, f 0, f 1,} f 2, f n, R X , T _X , GAIN, EN, and MIC EN.

However, it is a problem that the resistance values of the resistors (R ₁ , R ₂ , R ₃ , ... R _N ) used in the remote 1 differ from one manufacturer to another. That is, when the switch of the remote 1 is turned on, the variable voltage of the microphone signal line is measured on the side of the connected device according to the resistance value to determine which one of the switches is depressed. The bundled earphone is not compatible with each connected device. In this way, when the bundled earphone of company A is connected to the smartphone of company B, it is possible to listen to music or make a call, but the operation corresponding to the operation of the remote switches is mostly not performed.

For this reason, in case of a Bluetooth receiver that operates wirelessly with a smartphone, a remote (switch) is mounted on the receiver device itself. However, this causes a number of problems. That is, since the size of the Bluetooth receiver device must be minimized to enhance the portability, mounting a remote (multiple switches) to the Bluetooth receiver device is advantageous in terms of design, usability, , It is disadvantageous in terms of durability.

Korean Patent Laid-Open Publication No. 10-2009-0055359 (Publication date 2009.06.02.)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above. Accordingly, it is an object of the present invention to provide a method and apparatus for storing information of remotes (switches) in advance, The present invention also provides a receiver-compatible interface device and method for allowing earphones and headphones to be freely used in a general portable device by allowing a compatible portable earphone and a remote (switch) of a headphone to be stored after being recognized.

According to an aspect of the present invention, there is provided a receiver-compatible interface device, which is programmed by matching a unique function of the switch in response to a voltage input depending on a resistance value of a switch constituting a receiver.

A receiver-compatible interface device of the present invention includes: a voltage measurement unit for measuring a compatibility mode signal and a voltage generated from each switch signal; A control unit for matching each inherent function with respect to each voltage corresponding to each voltage; And a storage unit for storing matching information on switches and unique functions. At this time, the compatible mode signal is generated from a switch having the lowest resistance value among the switches.

The microcomputer may further include a microphone amplifier driving unit driven by a combination signal of an externally input mic amp activation signal and a mic amp control signal input from the control unit.

The display unit may further include a display unit for confirming and setting the respective switch signals and the corresponding functions.

In addition, the controller may be interlocked with a display unit of the connected device so as to confirm and set each switch signal and the corresponding unique function.

Meanwhile, a receiver compatible interface method of the present invention includes: entering a mode for registering switch information of the receiver corresponding to a hook function switch input of a preset method from a receiver; And matching the corresponding inherent functions for each switch corresponding to the voltages generated according to the resistance values connected to the respective switches.

At this time, when the corresponding unique function is matched for each switch, the display unit can be interlocked.

Meanwhile, it is possible to classify the switching mode of the hook function switch and to program the function of each switch according to the switching mode.

As described above, the receiver-compatible interface device and method according to the present invention have the following effects.

1. In the case of Bluetooth earphone / headphone receiver, various functions can be performed using the remote (switch) attached to the Bluetooth earphone / headphone receiver, so that it is not necessary to place additional switches in the body of the Bluetooth earphone / headphone receiver. Therefore, design freedom of Bluetooth earphone / headphone receiver can be increased.

2. It is possible to control the various functions of the connected device by using the remote installed in the earphone / headphone receiver which is using ear buds, so it is possible to increase convenience for the user.

3. It is possible to remove the switch of the connected device which performs the same function as the remote function mounted on the earphone / headphone receiver. Therefore, it is possible to remove the related parts, simplify the assembling process, .

4. Since it is not necessary to directly touch the switch of the connected device, the external life of the connected device can be extended.

Fig. 1 is a conceptual diagram of wiring of a remote and a receiver interface device.
2 is a conceptual diagram of a receiver compatible interface device according to an embodiment of the present invention.
3 is a block diagram of a control circuit of a receiver compatible interface device according to an embodiment of the present invention.
4 is a circuit diagram of a remote and receiver compatible interface device according to an embodiment of the present invention.
5 is a configuration diagram of a control unit according to an embodiment of the present invention.
6 is a flowchart of a receiver compatible interface method according to an embodiment of the present invention.

Hereinafter, a receiver-compatible interface device and method according to the present invention will be described in detail with reference to the accompanying drawings.

2 to 4 are a conceptual diagram, a control circuit block diagram, and a circuit diagram of a receiver compatible interface device according to an embodiment of the present invention.

Referring to FIGS. 2 to 4, the receiver-compatible interface device 20 of the present invention measures a voltage generated from a receiver including the remote 10 and programs a corresponding unique function for each voltage.

The remote 10 may include as an example, a microphone (MIC) and a switch (SW _1, SW _2, SW ₃₎ and a series-connected resistor on a switch _{(R 1, R 2, R} 3). Of course, further switches and resistors can be formed.

In addition, as one example, a switch (SW ₁₎ is used as a hook switch function, the switch (SW _2, SW ₃₎ may be used as a volume increase and volume decrease switch switches.

Resistance (R ₁₎ is a resistor used in the hook function switch, the resistance of the resistor (R ₁₎ is 0 (Ω) or it is closely set, each of the resistance are the resistance (R ₁₎ <resistance (R ₂₎ <Resistance (R ₃ ) relationship. Of course, the resistance R ₁ <the resistance R ₃ <the resistance R ₂ may be used.

And a receiver-compatible interface unit 20, switch operation to detect the compatibility mode signal and a voltage from each of the switch signal transmitted from the remote 10, sensing unit 201 of the present invention, HOOK, Vol +, Vol-, f _0, the input and output terminals including f ₁ , f ₂ , R _x and T _x , the microphone amplifier control signal MIC EN and the front and rear data input terminals AD _IN and INT of the switch operation sensing unit 201 are formed A control unit 202 for converting the measured analog voltage into a digital value and matching each of the distinguished switch signals with the corresponding intrinsic function, a storage unit 203 for storing matching information that matches each switch signal with the corresponding intrinsic function, ). The storage unit 203 may be a nonvolatile memory that may be included in the controller 202.

The microcomputer 200 may further include a microphone amplifier driving unit 30 driven by a combination signal of a microphone amplifier activation signal transmitted from the main body of the connection device and a microphone amplifier control signal of the control unit 202. [ At this time, the main body of the connected apparatus which does not use the microphone amplifier separately may not output the microphone amplifier activation signal, and only the microphone bias voltage may be outputted. In this case, the microphone amplifier control signal must be used.

In addition, the display unit 40 may be further connected to the control unit 202. [ And the respective switch signals and their corresponding functions can be confirmed and set through the display unit 40. The display unit 40 may be a liquid crystal display or a simple LED lamp. On the other hand, when the receiver compatible interface device 20 of the present invention is connected to a connected device, the display of the connected device main body may be used if there is a display on the connected device main body.

On the other hand, if the receiver-compatible interface unit 20 of the present invention is connected or installed to the connecting unit to the connected device, f _0, f _1, f _2, f _n, R _X, except for the terminal, such as T _X, and SPI Or may be configured to communicate the selected function by communicating with the microprocessor of the connected device such as the TWI.

5 is a configuration diagram of a control unit according to an embodiment of the present invention.

5, the control unit 202 of the present invention includes a connection detecting unit 2021 for determining whether a receiver is connected, a total resistance measuring unit 2022 for measuring a total resistance constituting the remote, And a comparison detector 2023 for comparing the total stored value with the total resistance value stored in the storage unit and detecting the same total resistance value.

If the connected receiver is a pre-stored receiver, the control unit 202 sets the remote function of the receiver to a remote function. Otherwise, the controller 202 proceeds to a programming process of matching the switch and the unique function.

On the other hand, when the control unit 202 is included in the receiver, it is determined whether or not the connection unit is connected, and then the control unit 202 can transmit the remote information (total resistance value) of the receiver to the microprocessor There will be.

In the above-described embodiments, the receiver-compatible interface device of the present invention is manufactured as an independent entity. However, the receiver-compliant interface device of the present invention may be formed in the receiver main body or in the connecting device.

Hereinafter, a receiver compatible interface method of the present invention using the apparatus configured as described above will be described.

6 is a flowchart of a receiver compatible interface method according to an embodiment of the present invention.

Referring to FIG. 6, in response to the input of a hook function switch to be clicked in a predetermined manner such as a double click, a triple click, .

In response to the input of the switch, programming is performed for each switch and its own function (S3).

Thus, the programmed matching information is stored (S4).

Meanwhile, when the matching information is stored for a plurality of receivers, a process of recognizing the connection of a specific receiver is required. As an example, it is possible to enter the 'receiver search mode' by clicking the hook function switch a predetermined number of times. When entering the receiver search mode, measure the total resistance, or click the other two (volume increase switch and volume decrease switch) or register more switches within a certain period of time to select the specific receiver It will be recognizable.

Example

By default, the hook function switch among the remote (switches) used in earphones or headphones is connected in series with a resistance value close to 0 (Ω). Hook function switches are therefore compatible with all models.

As described above, the hook function switch is a special switch commonly used in all portable apparatuses. Once the 'hook function switch' is pressed, the control unit 202 designates and outputs a signal indicating the state of the hook function switch. The state of this port is always the same as that of the 'hook function switch'.

In the present invention, the remaining two switches are distinguished from each other by using the hook function switch to provide functions. In other words, if you click the hook function switch four times and press one of the two switches, register it as the volume decrease switch, click the hook function switch five times in succession, press one of the two switches, It is a way to register.

That is, the hook function switch means that the hook function switch is operated only by pressing a short time, and when the hook function switch is continuously pressed twice or more shortly, the hook function switch itself enters a specific mode. For example, if the 'hook function switch' is double-clicked (double-clicked), the control unit 202 outputs a signal indicating 'double click' to a single output port for 100 msec.

Then, it maintains the 'shift-0' mode for about 500 msec. If the 'volume increase switch' or 'volume decrease switch' is pressed within that time, the time is reset and the pressed switch is recognized as 'shift-0 volume increase switch'.

Similarly, when the 'hook function switch' is shortly clicked (triple click) three times, the control unit 202 outputs a signal indicating 'triple click' to one output port for 100 msec. And, like 'double click', it keeps 'shift-1' mode for 500msec. If the 'volume increase switch' or 'volume decrease switch' is pressed within that time, the time is reset and the pressed switch is recognized as 'shift -1 volume increase switch'.

If you press and hold the 'volume up switch' or 'volume down switch', the corresponding output port will show a long signal output of over 500 msec.

In this case, the output ports corresponding to the 'volume reduction switch' and the 'volume increase switch' are different from the output ports corresponding to the 'shift-0 volume decrease switch' and the 'shift-0 volume increase switch'.

The same is true of the port corresponding to 'shift -1'.

As described above, according to the present invention, when the remote switch information is a receiver that has not been stored in advance or is a receiver incompatible with previously stored switch information, the switch information of a new receiver can be programmed using a hook function switch . That is, the hook function switch is entered into the "new receiver switch information registration mode" via the input of double-click or the like, and when entering the " new receiver switch information registration mode " By storing the voltage variation according to the resistance value at that time, the switch can then perform a desired function when a new receiver is connected to the connected device.

Since the resistance value of the hook function switch connected to the ground line (GND) is equal to or close to 0 (?), It is compatible with all devices. In the present invention, by utilizing the hook function switch, Quot; mode "is entered. Therefore, it is possible to register and use a plurality of incompatible receivers by using hook function switches installed in all receivers.

By using the hook function switch as a switch for entering the "new receiver switch information registration mode", various functions can be controlled by the given three switches. That is, as in the case where the hook function switch is double-clicked to enter the mode for registering information of a new earphone switch that has not been registered, the hook function switch can be clicked three times to enter the control mode of another function. In other words, different functions can be performed by programming different functions to each switch for each mode entered through different clicks of the hook function switch.

On the other hand, it is also possible to provide switch operation information in parallel or in series with the control unit 202 of the connected device, and to select which code value to provide switch information according to the number of clicks of the hook function switch have. That is, the number of modes according to the number of consecutive clicks of the hook function switch from the microprocessor of the main body of the connected apparatus main body to the control unit 202, and switch discrimination information when the switch corresponding to the mode is depressed. Then, the control unit 202 recognizes the switch to be operated later and transmits the unique function to the microprocessor of the main body of the access device.

When the voltage of the microphone signal line is lowered to a predetermined level or lower by the switch being pressed by the microprocessor and the control unit 202 of the main body of the external device, the microprocessor operates the microphone amplifier so that the voltage of the signal line is constant (I.e., until the end of the switch is used). By doing so, it is possible to block the hooking sound heard by the receiver when the switch is pressed (noise generated when the microphone signal line is changed to a low level).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

10: Remote
20: Receiver compatible interface device
201: Switch operation detection unit
202:
203:

Claims (9)

A switch operation sensing unit for sensing each voltage from each switch signal including a compatible mode signal transmitted from the receiver corresponding to a voltage input depending on a resistance value of a switch constituting the receiver;
A controller for matching and matching corresponding intrinsic functions on a switch-by-switch basis corresponding to respective voltages of the switch signals including the compatible mode signal;
A storage unit for storing matching information that matches each switch signal with a corresponding unique function; And
And a display unit coupled to each of the switches to match the corresponding unique function. The method according to claim 1,
The control unit includes a total resistance measuring unit for measuring a total resistance constituting the remote of the receiver. The total resistance value measured through the comparison detecting unit is compared with the total resistance value stored in the storing unit, And a comparison detector for determining whether or not the receiver is compatible with the receiver. A method of interfacing a receiver interface device,
Entering a mode for registering switch information of the receiver in response to a preset hook function switch input from a receiver; And
And registering a corresponding unique function for each switch corresponding to a voltage generated according to a resistance value connected to each switch when the mode is entered,
Wherein the input of the hook function switch is configured to expand the switching mode through different number of clicks of the hook function switch and to program and register corresponding unique functions of the respective switches according to the switching mode. delete delete delete delete delete delete

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