KR20040107814A - folder-type cell phone - Google Patents

Abstract

PURPOSE: A folder-type mobile terminal is provided to simplify a manufacturing process for mobile terminals by adopting an infrared communication method for the data communication between internal devices in a mobile terminal. CONSTITUTION: A folder-type mobile terminal consists of a main body part(40) and a folder part(50). The main body part(40) comprises an antenna(41), an RF signal conversion part(42), the first infrared communication part(43), an infrared communication interface(44), a memory(45), a keypad(46), a microphone(47), and a main control part(48). The antenna(41) transmits and receives RF signals. The RF signal conversion part(42) converts an RF signal, inputted from the antenna(41), into a baseband signal. Also the RF signal conversion part(42) converts internal data to be transmitted into an RF signal. The first infrared communication part(43) to transmit and receive data signals between the main body part(40) and the folder part(50) comprises the first infrared communication module composed of an infrared-emitting diode and an infrared photocell. The infrared communication interface(44) converts an infrared signal, inputted from the first infrared communication part(43), into an electrical signal.

Description

Folder-type cell phone}

The present invention relates to a cellular phone.

Mobile phones are generally classified into flip type and folder type, but recently, due to the miniaturization of mobile phones, the folder type has become the mainstream.

1 is an external perspective view of a conventional foldable cellular phone. As shown in FIG. 1, the external structure of a conventional clamshell mobile phone includes a main body housing 10 and a folder housing 20.

The main body housing 10 has a plurality of key boards 11 protruding from each other, a microphone window 12 is formed under the key boards 11, and first and second surfaces on both sides of the upper part of the key boards 11. 2 Supports 13 and 14 are formed to protrude vertically. In addition, an antenna is formed at one side of the main body housing 10.

The folder housing 20 has an LCD display 21 and a speaker window 22 formed therein, and are integrally formed at ends thereof, and the holder 23 is hinged to the first and second supports 13 and 14. Is formed.

Here, the implementation technology for the hinge coupling of the main body housing 10 and the folder housing 20 is Korean Patent Application Publication No. 2002-78023 "cover hinge device of a mobile phone", Republic of Korea Utility Model Application No. 2003-1668 No. "Hinge structure of the mobile phone", etc. This is already well known before the application, detailed description thereof will be omitted.

FIG. 2 illustrates an internal printed circuit board of a main body housing of the folding cellular phone according to the embodiment of FIG. 1. As illustrated in FIG. 2, a conventional folding type cellular phone main body 10 has an internal printed circuit board (PCB) connected to a key fitting opening 31 on which a plurality of key boards 11 are mounted and a wire connected to a microphone MIC. And a plurality of electrode pins 33 which are soldered and coupled to electrode pins on a flexible printed circuit board (FPCB) for applying electrical signals to the LCD 32 and the speaker 32 in the connector 32 and the folder housing 20 connected to each other. It includes a controller chip 34 and a memory 35 containing logic.

Here, the flexible printed circuit board (FPCB) is mounted inside the first support 13 or the second support 14, the inner cellular phone device, that is, the printed circuit board and the folder inside the main body housing 10 The LCD and the speaker inside the housing 20 are electrically connected to support data communication.

Increasingly, foldable cell phones are equipped with electrical equipment such as LCDs that support various color screens and cameras that support image capturing functions. Therefore, many connection pins are required for printed circuit boards or flexible printed circuit boards (FPCBs) in the housing. do. In such a case, conventionally, the flexible printed circuit board (FPCB) must be calibrated, and the secondary work according to the calibration, for example, the reception sensitivity check of a mobile phone and the modification of an external symbol dictionary (ESD) for data communication are performed. There was an inconvenient work that had to be done. In addition, conventionally, the soldering process of the flexible printed circuit board (FPCB) and the printed circuit board inside the main body housing is troublesome, and the modification process is cumbersome. There was an increasing problem.

The present invention is to solve the above problems, an object of the present invention is to provide a folder-type mobile phone that supports data communication between the internal device of the folder-type mobile phone through the infrared signal.

1 is an external perspective view of a conventional foldable cellular phone.

2 shows an internal printed circuit board of a conventional folder type cellular phone.

3 is a block diagram illustrating a folding cellular phone according to an embodiment of the present invention.

4 is an external perspective view of the folding cellular phone according to an embodiment of the present invention.

5 is a side view of the folding mobile phone according to the embodiment of FIG. 4.

<Brief Description of Drawings>

10: body housing 11: key keyboard

12: Mike Chang 13: First District

14 second district 15: first infrared dock

20: Folder housing 21: LCD display window

22: Speaker window 23: Holder ball

24: second infrared window 241: reflector

431: first infrared communication module 531: second infrared communication module

In order to achieve the above object, a clamshell mobile phone according to an aspect of the present invention receives a user operation signal and accordingly performs a variety of application programs stored in the mobile phone, such as the Internet, a game, a text message and the like to perform the function The folder unit which receives various application program data from the main body unit and outputs it as an image, text, and sound is hinge-coupled, and the main body unit and the folder unit perform data communication using an infrared signal.

Specifically, the clamshell-type cellular phone according to the present invention includes a clamshell-type cellular phone in which a main body portion and a folder portion are hinged, the main body portion further comprises a first infrared communication unit for transmitting and receiving an infrared signal, the folder portion and the first infrared communication portion A second infrared communication unit for transmitting and receiving an infrared signal, an infrared communication interface unit for converting an infrared signal input from the second infrared communication unit into an electrical signal, interpreting and distributing data from the electrical signal, and the infrared communication interface unit An auxiliary control unit for receiving a data signal from the auxiliary control unit, an audio output unit for outputting an audio signal input from the auxiliary control unit to a speaker, and a display driver unit for displaying a display data signal input from the auxiliary control unit on a display unit; Characterized in that.

According to this aspect of the present invention, the clamshell-type mobile phone according to the present invention supports data communication using infrared rays between the main body and the folder.

Incidentally, additional work due to the manufacturing process of the mobile phone and the future troubleshooting and functional upgrade of the mobile phone can be simplified, and parts consumption due to the failure and additional work can be minimized.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

3 is a block diagram illustrating a folding cellular phone according to an embodiment of the present invention.

As shown, the clamshell mobile phone according to the present invention includes a main body 40 and a folder 50.

The main body 40 is a part for controlling telephone calls and data communication, and includes an antenna 41, an RF signal conversion unit 42, a first infrared communication unit 43, an infrared communication interface 44, and a memory 45. And a keypad 46, a microphone 47, and a main controller 48.

The antenna 41 receives a radio frequency (RF) signal transmitted from a base station and transmits internal data converted into a radio frequency (RF) signal.

The RF signal converter 42 converts an RF signal input from the antenna 41 into a baseband signal, and converts internal data to be transmitted into an RF signal. The RF signal converter 42 may be implemented with a duplexer and an RF transmission / reception module.

The first infrared communication unit 43 transmits and receives a data signal between the main body unit 40 and the folder unit 50 and includes a first infrared communication module including a pair of infrared light emitting diodes and an infrared photocell. The first infrared communication module has IrDA (Infrared Data Association) 1.0 and 1.152 Mbps and 4 Mbps IrDA 1.1 having a maximum transmission rate of 2.4 to 115.2 kbps. The infrared module may be selectively mounted according to a specification satisfying the amount of data required by the folder unit 50.

The infrared communication interface 44 converts an infrared signal input from the first infrared communication unit 43 into an electrical signal. In addition, the infrared communication interface 44 stores management procedures such as communication path connection and disconnection between the main unit 40 and the internal device of the folder unit 50, a file transfer protocol (BFTP), and display information. By specifying the file format (UPF: Uni Picture Format) required for display, transfer of still images can be realized.

The memory 45 records and stores a system driving program and various application programs, and includes a highly integrated nonvolatile memory, for example, EEPROM (Electrically Erasable and Programmable Read Only Memory), which can erase and program data electrically. It is preferably implemented in flash memory.

Main controller 48 is preferably implemented as a microprocessor integrated ROM, RAM and peripheral devices. The main controller 48 controls input / output data transmission / reception with the RF signal converter 42 according to a program stored in the memory 45, processes a key signal input from the keypad 46, and controls the microphone ( 47) and outputs to the audio signal speaker input through.

The folder unit 50 is a part for receiving control and data signals from the main body unit 40, and includes a display unit 51, a speaker 52, a second infrared communication unit 53, an infrared communication interface 54, and an auxiliary control unit. 55, an audio output unit 56, and a display driver 57.

The display unit 51 displays image and text information input from the outside, for example, application information including game information, wallpaper information, and the like, and battery information of the mobile phone, date and time, and phone number input number. It is desirable to implement a liquid crystal display (LCD).

The speaker 52 outputs an audio signal input from the outside, for example, a voice signal, a ring tone, an alarm sound, etc. of the calling mobile phone user.

The second infrared communication unit 53 transmits and receives a data signal between the main body 40 and the folder unit 50 and includes a second infrared communication module in which an infrared light emitting diode and an infrared photocell are paired. In the present invention, the second infrared communication unit 53 is preferably manufactured so as to transmit and receive an infrared signal with the second infrared communication unit 53, even if the mobile phone is open or closed.

The infrared communication interface 54 converts the infrared signal input from the second infrared communication unit 53 into an electrical signal. In addition, the infrared communication interface 54 stores management procedures such as connection and disconnection of the communication path between the main body 40 and the internal device of the folder unit 50, a procedure at the time of file transfer (BFTP), and display information. By specifying the file format (UPF: Uni Picture Format) required for display, transfer of still images can be realized.

The auxiliary control unit 55 controls the communication between the infrared communication interface 54, the audio output unit 56, and the display driver 57, and is preferably implemented as a microprocessor in which ROM, RAM, and peripheral devices are integrated.

The audio output unit 56 outputs the audio signal input from the auxiliary control unit 55 to the speaker 52.

The display driver 57 outputs a display data signal input from the auxiliary control unit 55 to the display unit 51. Furthermore, the display driver 57 includes a video decoder which decompresses the compressed video signal input from the main body 40 and displays the compressed video signal on the display 51.

According to an additional aspect of the present invention, the folder unit 50 may further include an imaging unit 58 and an image processing unit 59 for processing an image signal input from the imaging unit 55.

The image pickup unit 58 captures an image of a subject and is preferably implemented by a digital camera.

The image processing unit 59 may compress the image signal input from the imaging unit 58 in the JPEC or MPEC method and transmit the image signal to the main body unit 40 through the second infrared communication interface 54.

Figure 4 is an external perspective view of a foldable phone according to an embodiment of the present invention, Figure 5 is a side view of the foldable phone according to the embodiment of FIG. Here, the configuration corresponding to FIG. 2 uses the same reference numerals.

In a preferred embodiment, the folding cellular phone according to the present invention is preferably installed and manufactured to enable data transmission and reception between the first and second infrared communication modules 431 and 531 even when the mobile phone is open or closed.

4 illustrates a state in which a folding cellular phone is open, and as shown, the folding cellular phone according to the present embodiment includes a first support 13 and a second support 14 of the main body housing 10. The first infrared window 15 having the first infrared communication module 431 mounted therein is formed at a predetermined portion therebetween, and the second infrared communication module 531 is mounted therein at the predetermined portion of the holder port 23. The second infrared window 24 is formed. The first and second infrared communication modules 431 and 531 may be installed to face each other for stable infrared signal transmission and reception.

In one embodiment, it is preferable that a reflector 241 capable of reflecting an infrared signal is mounted inside the second infrared window 24. This is to enable infrared data transmission and reception between the main body 40 and the internal device of the folder unit 50 even when the folding cellular phone is closed.

In the folding cellular phone according to the present invention, the battery is detached from the main body housing 10 to supply power to the entire cellular phone internal device. At this time, since the implementation technology for supplying the battery power to the internal device of the main body 40 is already known, a detailed description thereof will be omitted. Here, the implementation technology for supplying battery power to the internal device of the folder unit 50 uses a hinge itself to hinge the folder unit 50 and the main body unit 40 as an electrode or a power line connected to a connector at both ends thereof. The battery can be supplied to the internal device of the folder unit 50 by penetrating through the hinge hole. In addition, it is possible to supply battery power to the internal device of the folder unit 50 by using an elastic rotary sliding contact method using a hinge.

As described above, according to the present invention, the folding mobile phone according to the present invention employs an infrared communication method, which has a useful advantage of simplifying the mobile phone manufacturing process.

In addition, it is necessary to perform flexible printed circuit board (FPCB) calibration work according to the mobile phone function upgrade, check the reception sensitivity of the mobile phone according to the calibration, and modify the external symbol dictionary (ESD) for data communication. There is a useful effect that can eliminate the inconvenience of working.

In addition, the soldering defect of the flexible printed circuit board (FPCB) and the printed circuit board inside the main body housing has a useful effect that can solve the disadvantage that the mobile phone is broken or consume the internal parts of the mobile phone.

Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the invention from this description. Therefore, it should be interpreted by the claims described to include many such variations.

Claims (3)

In the clamshell-type mobile phone in which the main body and the folder are hinged, The main body further comprises a first infrared communication unit for transmitting and receiving an infrared signal, The folder part: A second infrared communication unit for transmitting and receiving an infrared signal with the first infrared communication unit; An infrared communication interface unit converting an infrared signal input from the second infrared communication unit into an electrical signal, and analyzing and distributing data from the electrical signal; An auxiliary control unit which receives a data signal from the infrared communication interface unit and processes the data signal; An audio output unit configured to output an audio signal input from the auxiliary control unit to a speaker; A display driver for displaying a display data signal input from the auxiliary control unit on a display unit; A clamshell phone further comprising a. The method of claim 1, wherein the clamshell phone is: A body housing having the main body mounted therein and having first and second supports formed on both sides thereof; A folder housing in which the folder unit is mounted and formed integrally at an end thereof, the holder housing being hinged to the first and second supports; Including, The main body housing is further formed with a first infrared window at a predetermined portion between the first support and the second support, The holder-type cellular phone, characterized in that the predetermined portion is further formed with a second infrared window corresponding to the first infrared window. The clamshell cellular phone according to claim 2, wherein the second infrared window is provided with a reflector reflecting an infrared signal on an inner side thereof.