KR20010001018A - Remote controll handset of mobile telephone - Google Patents

Abstract

PURPOSE: The remote handset for a cellular phone is provided to perform the operations of transmission and reception without the need for operating the body of the cellular phone, by installing a telephone keypad, a transmission microphone and a reception speaker at the remote handset. CONSTITUTION: A cellular phone body(101) is connected to a key terminal(102) via cables (103a),(103b). A binder(104) varies the lengths of the cables (103a),(103b) in need. The key terminal(102) is closed and opened by a flip(102a), and includes a microphone(105) for the transmission and a speaker(106) for the reception. Keys(107a),(107b) are arranged at the body(101) and the flip(102a), respectively. A liquid crystal display(LCD)(108) displays the operation states of the cellular phone. A power supply key(109) and a phone call key(110) are exposed so that the phone call and the operations for turning on and off the cellular phone can be performed without the need for opening the flip(102a).

Description

Remote handset of mobile phone {REMOTE CONTROLL HANDSET OF MOBILE TELEPHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote handset that is connected by wire to a mobile phone, and more particularly, to perform a call and a sign language without manipulating the body of a mobile phone by using a remote handset having a telephone keypad, a microphone for a telephone, and a speaker for a telephone. It relates to a remote handset of a mobile phone.

With the widespread use of personal mobile phones such as cellular phones and PCS, various technologies and products related to wired handsfree kits or wireless handsfree kits have been proposed for the purpose of increasing the convenience of using mobile phones.

In the case of the conventional wired hands-free kit, the ear-microphone is connected to the mobile phone body by wire to provide a convenience of receiving an incoming call without having to directly lift the mobile phone and talking to the other party.

However, in the case of the wired hands-free kit, only earphones and a microphone are provided as basic components, so only an incoming call can be received and the call can not be made. .

In addition, in the case of a wired hands-free kit using ear-microphones, the earphones must be worn on the ears, resulting in discomfort and limitations in the treatment of foreign body, ear pain, and elongated lines, which are accompanied by long wearing.

On the other hand, in the case of the wireless hands-free kit, the inconvenience of the line connecting the mobile phone body and the ear-mic can be eliminated, but the rest has the problems of the wired hands-free kit described above.

The present invention provides a remote handset apparatus for a mobile telephone having a key terminal connected to the main body of the mobile telephone by wire and having a keypad for enabling remote operation of the mobile telephone, together with a microphone and a speaker for a voice call. to provide.

In addition, the present invention is connected to the main body of the mobile phone by wire, a key terminal device having a keypad to make a call without receiving an incoming call or directly operating the phone body, with a microphone and a speaker for a voice call It provides a remote handset device comprising a.

In another aspect, the present invention has a key terminal device connected to the main body of the mobile telephone by a wire, including a keypad for enabling voice calls and remote operation, and including a display means (LCD) for displaying the operation state of the device. A remote handset of a mobile telephone is provided.

In addition, the present invention is connected to the mobile phone body by wire, the key terminal device having a keypad that enables voice calls and remote operation, the length of the wire connecting the mobile phone body and the key terminal device by winding or unwinding It provides a remote handset device for a mobile phone, characterized in that it further comprises means for making it flexible.

In addition, the present invention is connected to the mobile phone body by wire, and the key terminal device having a keypad for enabling voice calls and remote operation is composed of a microphone-speaker-keypad integrated type, and the keypad is configured to be flipped so that the key terminal device is made light. Provided is a remote handset of a mobile telephone, characterized in that it is simplified.

1 is a perspective view showing the appearance of a mobile telephone and a remote handset according to the present invention;

2 is a block diagram showing a circuit configuration of a mobile telephone and a remote handset according to the present invention.

1 is a view showing a schematic appearance configuration of a mobile phone and a key terminal device and a binder when the key terminal device is applied to the mobile phone as an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a circuit configuration of a mobile phone main body and a key terminal device for implementing the embodiment of the present invention.

First, referring to Figure 1 looks at the configuration of the remote handset of the mobile telephone of the present invention.

The present invention consists of a mobile phone body 101 and a key terminal 102 and codes 103a and 103b for connecting the mobile phone body and the key terminal.

It is also possible here to have an embodiment with a binder 104 that allows the length of the cords 103a and 103b to be increased or shortened as needed.

The binder 104 can be manufactured by a known technique, which can be produced simply by using a tape measure provided with a roll, a spring, a braking device, and the like.

The binder 104 is provided with an operation button 104a for automatically winding the cord 103a.

In addition, the key terminal 102 has a structure of opening and closing with a flip 102a, and a microphone 105 for a talk and a speaker 106 for a sign language are respectively built in, and the keys 107a and 107b are respectively connected to the terminal body. And arranged on the flip side and the flip side, and an LCD 108 for displaying the operation state of the device is mounted.

On the other hand, the power key 109 and the call key 110 is manufactured in a constant exposure structure so that the basic operation of the mobile phone, that is, the call or power on and off can be performed without opening the flip 102b.

The keys 107a and 107b include numeric keys for entering a telephone number, * keys, # keys, and other necessary appropriate function keys.

The key terminal 102 of the present invention is flip type, and the keys are distributed to both the main body and the flip, and the power source is supplied from the mobile phone main body 101 through the cords 103a and 103b, so that the battery needs to be separately installed. No, it was made light and small by having only a minimum IC circuit for the call and remote operation, and because the microphone-speaker-key integrated structure can be provided, it is possible to provide the same, but very small handset mechanism as the mobile phone (101).

It is also customary for a cell phone user to be able to conduct a call by holding the key terminal 102 in hand and the speaker 106 close to the ear and the microphone 105 as close to the mouth as compared to the ear-mic. It provides the best match for

Fig. 2 is a block diagram showing the internal circuit configuration of the remote handset of the present invention described above, and shows one embodiment.

The cellular phone main body circuit portion 201 and the key terminal circuit portion 202, and the communication lines 203a and 203b-the cord of Fig. 1 and the stretching means 204-and the binder for connecting them are shown.

The cellular phone main body circuit portion 201 includes a microprocessor 205, a memory 206, a connection means 207-interface circuit and a connector for cord connection.

The microprocessor 205 searches whether the code 203a is connected to the connecting means 207, and if the code 203a is connected, sets the 'remote operation mode' in the pre-allocated area of the memory 206. If the code 203a is not connected, the setting of the 'remote operation mode' is canceled to perform the normal cell phone control operation.

In the 'remote operation mode', the microprocessor 205 performs voice transmission and reception and data transmission control with the key terminal circuit unit 202.

On the other hand, the key terminal circuit section 202 has a connecting means 208-interface circuit and a connector for connecting the cord 203b, and performs voice handset, data transmission and reception, and LCD display control between the key terminal and the cellular phone main body. Microprocessor 209 and memory 210, key circuit 211 for making or receiving phone calls, LCD 212 displaying the operation status of the device under the control of the microprocessor, and microphone circuitry for inputting voice call ( 213, a speaker circuit 214 for outputting a spoken voice, and an audio circuit 215 for performing signal processing such as handset control and amplification.

The communication lines 203a and 203b vary in the number of lines and the definition of each line according to the communication method employed between the cellular phone main body circuit 201 and the key terminal 202. Six lines, +/- power line, clock line, data line, and transmission / reception line, are adopted.

1 and 2, the operation of the remote handset of the mobile telephone of the present invention will be described.

In FIG. 1, when the cords 103a and 103b are connected between the cellular phone main body and the key terminal using a connector, the communication lines 203a and 203b are connected between the cellular phone main body circuit portion 201 and the key terminal circuit portion 202 in FIG. Is built on.

In this state, power is supplied from the cellular phone main body circuit portion 201 to the key terminal main body circuit portion 202 through the communication lines 203a and 203b, and the key terminal circuit portion 202 is in a standby state.

[One]. Action when a call comes in

When a call is received, the microprocessor 205 of the cellular phone main body 201 confirms an incoming call and rings a ring (or vibration) to indicate that the call is received to the user.

Alternatively, since the microprocessor 205 is set to the 'remote operation mode', the clock and ring tone data are transmitted to the key terminal circuit unit 202 through the communication lines 203a and 203b, and the microprocessor ( 209 may decode the clock and ringtone data and output the analog ringtone signal through the speaker circuit 214 through the audio circuit 215.

When the incoming call is displayed in this way, the user manipulates the call key of the key circuit 211. (See FIG. 1, the call key 110 can be pressed without opening the flip 102a.

When the call key is pressed, the microprocessor 209 confirms the call key operation and transmits data indicating that the call key has been pressed to the communication lines 203a and 203b through the connecting means 208-interface circuit and the connector. send.

The call key data thus transmitted is recognized by the microprocessor 205 of the cellular phone main body circuit part 205 through the connection means 207-interface circuit and the connector, and recognizes that the user wants to make a telephone call.

As a result of the recognition, the microprocessor 205 opens the key terminal circuit portion 202 and the voice circuit through the communication lines 203a and 203b.

Accordingly, the voice signal of the called party is sent from the cellular phone main body circuit portion 201 to the key terminal circuit portion 202 through the communication lines 203a and 203b, and the audio circuit 215 of the key terminal circuit portion 202 is transmitted. Then, proper signal processing such as amplification and noise cancellation is performed, and then output through the speaker circuit 214.

Then, the user's voice signal is converted into an electric signal in the microphone circuit 213, and necessary signal processing such as noise removal and amplification is performed through the audio circuit unit 215, and then the cellular phone main body circuit unit through the communication lines 203a and 203b. The mobile phone body circuit unit 201 transmits the user's voice signal to the electric wave by performing appropriate processing such as modulation and signal conversion.

In response to the incoming call, the microprocessor 209 recognizes that the key is pressed in the key circuit 211, and the corresponding key data is received through the communication lines 203a and 203b. The microprocessor 205 recognizes this and performs a control to terminate the call.

Meanwhile, the operation state of the key terminal circuit unit 202 as described above is displayed on the LCD 212 by the microprocessor 209.

[2]. Action when making a call

To make a call, the user opens flip 102a.

Opening flip 102a opens the necessary keys 107a and 107b.

The user presses a predetermined numeric key corresponding to the other party's telephone number and the call key in sequence, and the corresponding key operation signal is transmitted from the key circuit 211 to the microprocessor 209 corresponding to the key operated by the user. Is entered.

The microprocessor 209 transmits predetermined key data (key code) corresponding to the input key manipulation signal to the cellular phone main body circuit 201 through the communication lines 203a and 203b.

The cellular phone main body circuit 201 recognizes and processes the input remote key signal in the same manner as pressing a key of the cellular phone itself, so that the user can make a call corresponding to the telephone number pressed by the user.

Since the next call is successfully made, the call with the other party is performed in the same manner as in the case of [1].

Meanwhile, the operation state of the key terminal circuit unit 202 as described above is displayed on the LCD 212 by the microprocessor 209.

The remote handset of the mobile telephone of the present invention shown in Figs. 1 and 2 is just one embodiment.

Since the basic technical idea of the present invention starts from the fact that the keys, the microphone, and the speaker of the mobile phone main body are separately operated like a remote controller corresponding to the main body key of the TV or the VCR, various modifications will be possible.

For example, in FIG. 1 and FIG. 2, the communication method between the mobile phone main body and the key terminal can be achieved by simply connecting OR circuits of both circuits, and by introducing digital signal processing technology to both circuits, serial data communication, Or it may be made in a suitable form such as analog communication, parallel data communication.

The remote handset device of the mobile phone of the present invention is a light and small-sized, small sized keypad, a microphone, and a speaker, which provides only the minimum components necessary for making and receiving a call in the form of a key terminal. There is convenience as possible.

Therefore, for example, the mobile phone main body can be carried in a bag and carried in a pocket with only a light and small key terminal connected in a wired form, or a perfect phone call and reception can be performed simply by removing and operating only the key terminal. .

In addition, since the wire connecting the mobile phone main body and the key terminal can be stretched using an apparatus such as a binder, the wire may be stretched long as in the conventional wired hands free kit, thereby eliminating the cumbersome or unsightly disadvantage.

In addition, since the key terminal of the present invention provides the form of the telephone used by the user as it is, it is well suited to the user's custom when making or receiving a call.

Claims (3)

In a mobile phone hands-free kit for making a wired remote call using a microphone-speaker device connected to the mobile phone main body by wire, Key input means for handset of a mobile telephone; A microphone and a speaker for handset of a mobile telephone; Control means for recognizing a key operation signal input by said key input means and transmitting and controlling the corresponding key operation signal to the mobile telephone body; Display means for displaying a device operation state under the control of the control means; Under the control of the microprocessor, audio signal processing means for transmitting the user's voice signal input to the mobile phone main body or outputting the other party's voice signal from the mobile phone main body to the speaker, and the microphone, the speaker and the key operation signal. Communication control means for transmitting to the mobile telephone body and receiving data and voice signals from the mobile telephone body; The remote handset of the mobile telephone, characterized in that the remote handset is made by connecting the key terminal and the mobile phone main body by wire. The remote handset of claim 1, further comprising telescopic means for winding and unrolling a communication line connecting the mobile phone and the key terminal to make it stretchable. 3. The remote handset of a mobile telephone according to claim 1 or 2, wherein the key terminal is flip-type and the keys are distributed in both the key terminal body and the flip.