Hereinafter, the portable terminal according to the present invention and an extension structure of the speaker enclosure applied thereto will be described in detail with reference to the accompanying drawings.
1 to 6 illustrate a functional configuration included in the portable terminal according to the present invention and an internal configuration applied to the portable terminal, and FIG. 1 illustrates a functional configuration of the portable terminal 100 according to the present invention and the space between them. Figure 2 is a block diagram showing an organic control system, Figure 2 is a front side perspective view showing an example of the arrangement for each component for implementing the functional configuration of the mobile terminal 100 according to the present invention, Figure 3 is a present invention Back side perspective view showing an example of the arrangement for each component for implementing a functional configuration of the portable terminal 100 according to the present invention, Figure 4 illustrates an arrangement of the speaker system applied to the portable terminal 100 according to the present invention. 5 is a cross-sectional view schematically showing the structure of a micro speaker applied to the portable terminal 100 according to the present invention, Figure 6 is an extension applied to the portable terminal 100 according to the present invention A conceptual diagram showing the structure of the enclosure schematically illustrate, respectively.
The mobile terminal described in the present specification includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like.
1 is a block diagram of a portable terminal according to an embodiment of the present invention. Referring to the drawings, the portable terminal 100 included in the present invention will be described in terms of components according to functions. .
As shown in FIG. 1, the mobile terminal 100 according to the present invention includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, and an output unit. The unit 150 may include a memory 160, an interface unit 170, a controller 180, and a power supply unit 190. Such components may be configured by combining two or more components into one component or subdividing one or more components into two or more components according to actual application needs.
The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 113, a wireless internet module 115, a short range communication module 117, a GPS module 119, and the like.
The broadcast receiving module 111 receives at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. At this time, the broadcast channel may include a satellite channel, a terrestrial channel and the like. The broadcast management server may mean a server for generating and transmitting at least one of a broadcast signal and broadcast related information, or a server receiving at least one of the pre-generated broadcast signal and broadcast related information and transmitting the same to a terminal.
The broadcast related information may mean information related to a broadcast channel, a broadcast program or a broadcast service provider, and may also be provided through a mobile communication network. In this case, the broadcast related information may be received by the mobile communication module 113. For example, it may exist in a variety of forms such as Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H). In addition, the broadcast signal may include a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, as well as a broadcast signal in which a data broadcast signal is combined with a TV or radio broadcast signal.
The broadcast receiving module 111 receives broadcast signals using various broadcasting systems, in particular, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), and Media FLO (Media Forward Link). Digital broadcasting signals can be received using digital broadcasting systems such as Digital Video Broadcasting-Handheld (DVB-H) and Integrated Services Digital Broadcasting-Terrestrial (ISDB-T). In addition, the broadcast receiving module 111 may be configured to be suitable for all broadcast systems providing broadcast signals as well as such digital broadcast systems. The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.
The mobile communication module 113 transmits and receives a radio signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The radio signal may include a voice call signal, a video call signal, or various types of data according to transmission and reception of a text / multimedia message.
The wireless internet module 115 refers to a module for wireless internet connection, and may be embedded or external to the mobile terminal 100.
The short range communication module 117 refers to a module for short range communication. As the short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), and UWB (Ultra) are used. Wideband, Zig Bee, etc. may be used.
The GPS (Global Position System) module 119 receives position information from a plurality of GPS satellites.
The A / V input unit 120 is for inputting an audio or video signal, and may include a camera 121 and a microphone 123. The camera 121 processes an image frame such as a still image or a moving image obtained by an image sensor in a video call mode or a photographing mode, and the processed image frame may be displayed on the display unit 151.
The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. In addition, two or more cameras 121 may be provided according to a configuration aspect of the terminal.
The microphone 123 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, or the like, and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 113 and output in the call mode. In addition, the microphone 123 may use various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.
The user input unit 130 generates key input data input by the user for controlling the operation of the terminal. The user input unit 130 may include a keypad, a dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, a finger mouse, and the like. In particular, when the touch pad forms a mutual layer structure with the display unit 151 to be described later, this may be referred to as a touch screen.
The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state, a position, and whether the user contacts the mobile terminal 100 to generate a sensing signal for controlling its own operation. For example, when the mobile terminal 100 is in the form of a slide phone, it can sense whether the slide phone is opened or closed. In addition, the power supply unit 190 may be responsible for the sensing function associated with whether or not the power supply unit 190, the interface unit 170 is coupled to the external device.
The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 153, an alarm unit 155, and the like.
The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal 100 is in the call mode, the UI (User Interface) or GUI (Graphic User Interface) related to the call is displayed, and when the mobile terminal 100 is in the video call mode or the shooting mode The captured or received images may be displayed at the same time or simultaneously, and the UI or the GUI may be displayed.
Meanwhile, as described above, when the display unit 151 and the touch pad form a mutual layer structure and constitute a touch screen, the display unit 151 may be used as an input device in addition to the output device. If the display unit 151 is configured as a touch screen, the display unit 151 may include a touch screen panel, a touch screen panel controller, and the like. The touch screen panel referred to herein is a transparent panel attached to the outside and is typically used in a mobile terminal. It is connected to the bus. The touch screen panel monitors the contact result and sends corresponding signals to the touch screen panel controller when there is a touch input. The touch screen panel controller processes the signals and then transmits corresponding data to the controller 180. The controller 180 allows the controller 180 to know information about whether there is a touch input and whether an area of the touch screen is touched.
In addition, the display unit 151 may include a liquid crystal display (LCD), a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, It may include at least one of a 3D display. In addition, two or more display units 151 may exist according to the implementation form of the mobile terminal 100. For example, an external display unit (not shown) and an internal display unit (not shown) may be simultaneously provided in the mobile terminal 100.
The sound output module 153 outputs audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. In addition, the sound output module 153 outputs a sound signal related to a function performed in the mobile terminal 100, that is, a call signal reception sound and a message reception sound. The sound output module 153 may include a speaker or a buzzer.
The alarm unit 155 outputs a signal for notifying occurrence of an event of the portable terminal 100. Examples of events generated in the mobile terminal 100 include call signal reception, message reception, key signal input, and the like. The alarm unit 155 outputs a signal for notifying occurrence of an event in a form other than an audio or video signal. For example, the signal may be output in the form of vibration. When a call signal is received or a message is received, the alarm unit 155 may output a vibration to inform this. Alternatively, when a key signal is input, the alarm unit 155 may output a vibration in response to the key signal input. This vibration output allows the user to recognize the occurrence of the event. Of course, the signal for event occurrence notification may be output through the display unit 151 or the sound output module 153.
In the memory 160, a program for processing and controlling the controller 180 may be stored. For the temporary storage of input or output data, that is, data such as a phone book, a message, a still image or a video, etc. You can also perform a function.
The memory 160 may include a flash memory type, a hard disk type, a multimedia card micro type, a memory of a card type such as a SD or XD memory, a RAM, a ROM, and the like. It may include at least one type of storage medium. In addition, the mobile terminal 100 may operate a web storage that performs a storage function of the memory 150 on the Internet.
The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. Examples of external devices connected to the mobile terminal 100 include a wired / wireless headset, an external charger, a wired / wireless data port, a card socket such as a memory card, a SIM / UIM card, and audio I / O (Input). / Output) terminal, video I / O (Input / Output) terminal, or earphone. The interface unit 170 may transmit data from such an external device or receive power to deliver the data to each component inside the mobile terminal 100, and may transmit data within the mobile terminal 100 to an external device. have.
The controller 180 typically controls the operation of each device unit to control the overall operation of the mobile terminal 100. For example, it performs related control and processing for voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia playback module 181 for multimedia playback. The multimedia playback module 181 may be configured as hardware in the controller 180 or may be configured as software separate from the controller 180.
The power supply unit 190 supplies an external power source or an internal power source under the control of the controller 180 to supply power for operation of each component.
In the above, the portable terminal 100 according to the present invention has been described in terms of components according to functions. Hereinafter, the portable terminal 100 according to the present invention will be described with reference to FIGS. 2 and 3. Let's look at it from the perspective. Hereinafter, for convenience of description, among various types of portable terminals such as a folder type, bar type, swing type, or slider type, a display unit 151 such as an LCD monitor and a user input unit 130b such as a keypad are provided on the front side. The slider type portable terminal is described as an example. However, the present invention is not limited to the slider type portable terminal, but can be applied to all types of portable terminals including the aforementioned type.
In describing the present invention, a state in which the first body 100A is disposed to overlap the second body 100B is referred to as a 'closed configuration', and as shown in FIGS. 2 and 3, A state in which the first body 100A exposes at least a portion of the second body 100B will be referred to as an 'open configuration'.
In general, the mobile terminal 100 operates in a standby mode mainly in a closed state, but the standby mode may be released by a user's operation. In the open state, the mobile terminal 100 mainly operates in a call mode or the like, but may be switched to a standby mode by a user's operation or a lapse of a predetermined time.
2 is a perspective view of a portable terminal according to an embodiment of the present invention viewed from the front side, and the portable terminal according to the present invention, as shown in the drawing, includes a first body 100A and a first body 100A. It includes a second body (100B) configured to be slidable in at least one direction.
The first and second bodies 100A and 100B may include a pair of first front cases 100A-1 and first rear cases 100A-2, a second front case 100B-1, and Each external shape is formed by the second rear case 100B-2.
The case forming the outer appearance of the first body 100A is formed by the first front case 100A-1 and the first rear case 100A-2. In the space formed by the first front case 100A-1 and the first rear case 100A-2, a main board and a sub board, which are circuit boards 200 on which a plurality of semiconductor chips and various electronic components are mounted, Many components are embedded, such as appliances such as shield cans that function as shield plates. At least one intermediate case may be additionally disposed between the first front case 100A-1 and the first rear case 100A-2. These cases may be formed by injecting synthetic resin, or may be formed to have a metal material, that is, a metal material such as stainless steel (STS) or titanium (Ti).
The display unit 151, the first sound output module 153a, and the first camera 121a may be disposed in the first front case 100A-1 of the first body 100A.
The display unit 151 includes a liquid crystal display (LCD), an organic light emitting diode (OLED), and the like that visually express information. Since the touch pad is superimposed on the display unit 151 in a layer structure, the display unit 151 may operate as a touch screen to input information by a user's touch.
The first sound output module 153a may be implemented in the form of a receiver or a speaker, and the first camera 121a may be implemented to be suitable for capturing an image or a video of a user.
On the other hand, the case forming the exterior of the second body 100B is formed by the second front case 100B-1 and the second rear case 100B-2. The first user input unit 130b may be disposed on the front surface of the second front case 100B-1 of the second body 100B, and the second front case 100B-1 or the second rear case 100B-2 may be disposed. At least one of the second user input unit 130c, the microphone 123 and the interface unit 170 may be disposed.
A command for controlling the operation of the mobile terminal 100 is input through the first user input unit 130b, and has a function corresponding to a mouse function such as a joystick key, a touch pad, a trackball, a pointing stick, a finger mouse, and the like. An input key may be further provided.
The first and second user input units 130b and 130c and the third and fourth user input units 130d and 130e which will be described later may be collectively referred to as the user input unit 130. Any means that can be manipulated while having a tactile sense can be employed. For example, the user input unit 130 may be implemented as a dome switch or a touch pad capable of inputting a command or information by a user's push or touch operation, or a wheel or jog method of rotating a key, or a manipulation method such as a joystick. It can also be implemented as.
In the functional aspect, the first user input unit 130b is for inputting commands such as start, end, and scroll, numbers, letters, or symbols, and the like. The second user input unit 130c is a portable terminal 100. It can act as a hot key for activating special functions within.
The microphone 123 may be implemented in a form suitable for inputting a user's voice, other sounds, and the like.
The interface unit 170 serves as a passage for allowing the mobile terminal 100 according to the present invention to exchange data with an external device. For example, the interface unit 170 may be at least one of a connection terminal for connecting to a wired / wireless earphone, a port for short-range communication, or a power supply terminal for supplying power to the mobile terminal 100. The card socket may be a user authentication module such as a subscriber identify module (SIM) or a user identity module (UIM), or an external card such as a memory card for storing information.
Typically, a power supply unit 190 for supplying power to the mobile terminal 100 is mounted on one side of the second rear case 100B-2. The power supply unit 190 refers to a rechargeable battery or the like, and may be detachably coupled to the second body 100B for the purpose of charging.
FIG. 3 is a rear perspective view of the mobile terminal 100 shown in FIG. 2, and as shown in the drawing, a second camera 121b is disposed on a rear surface of the second rear case 100B-2 of the second body 100B. May be additionally mounted. The second camera 121b may be configured to have a photographing direction substantially opposite to that of the first camera 121a and to have different pixels therebetween. For example, in the case of a video call, the first camera 121a is configured with a low pixel that is easy enough to take a picture of a user's face and immediately transmit it to the other party, and the second camera 121b accurately captures and stores a subject. It is preferable to use a high pixel suitable for the purpose of using it, but it is not necessary to transmit it immediately.
In addition, a third user input unit 130d may be additionally mounted on the rear surface of the second rear case 100B-2 of the second body 100B. The third user input unit 130d may be implemented as a wheel, and operate as a special function key such as scroll in the portable terminal.
In addition, a flash 125 may be further disposed adjacent to the second camera 121b. The flash 125 emits light toward the subject when the subject is photographed by the second camera 121b.
One side of the second rear case 100B-2 may further include an antenna for receiving a broadcast signal (not shown) in addition to an antenna for a call or the like, which may be installed to be pulled out from the second body 100B. On the first rear case 100A-2 side of the first body 100A, any one member of a set of slide modules 100C for operating the first and second bodies 100A and 100B to be slidable to each other is provided. The remaining members of the slide module 100C are coupled to the second front case 100B-1 of the second body 100B so that the slide module 100C is not exposed to the outside.
In addition, at one side of the second rear case 100B-2, a fourth user input unit 130e may serve as a selection or confirmation key for a specific function. The fourth user input unit 130e may operate as a hot key for activating a special function in the mobile terminal 100.
In the above description, the second camera 121b and the like have been described as being disposed in the second body 100B, but the present invention is not limited thereto. For example, at least one or more of the components 105, 121b and 125 described as disposed in the second rear case 100B-2 such as the second camera 121b may be formed of the first body 100A. 1 It can also be mounted to the rear case 100A-2. In such a configuration, there may be an advantage that the components disposed in the first rear case 100A-2 in the closed state are protected by the second body 100B, and the first camera 121a may be rotatable. If it is configured, even if the second camera 121b is not provided separately, it will be possible to take a variety of shooting.
Meanwhile, as shown in FIG. 4, a circuit board 200 in which various electronic components are mounted is disposed in a case applied to the portable terminal of the present invention as described above. Figure 4 shows an example of the arrangement structure of the circuit board 200 seen from the inside of the first rear case 100A-2 when the case is opened, and schematically shows the arrangement structure of the speaker system of the present invention.
That is, the speaker system of the present invention includes a speaker unit 310 and an enclosure 320 (refer to FIG. 5) and a circuit board disposed at one inner side of the first rear case 100A-2. It is formed in a hollow shape on the (200) as an insulating wall for performing a ground reinforcement function comprises a resonance rib 210 for expanding the resonance space in communication with the enclosure 320 and the internal space.
Resonance rib 210 of the present invention can be modified in various forms suitable for this according to the arrangement state of the components on the circuit board 200, the existing portable terminal speaker system due to the additional resonance space secured by the resonance rib 210 Compared to this, a richer bass sound can be realized.
In more detail, the speaker system of the present invention, as shown in Figs. 5 and 6, a speaker unit 310 having a magnet 313, a voice coil 315 and a diaphragm 316, and a speaker A resonance cylinder for wrapping and fixing the unit 310 includes an enclosure (cabinet) 320 that generates a low volume volume. When the speaker system vibrates the diaphragm 316 of the speaker unit 310 by the input electrical signal to generate sound waves in the air before and after the diaphragm 316, the enclosure 320 causes the diaphragm 316. By blocking the sound waves transmitted to the rear of the to prevent the interference with the sound waves transmitted to the front of the diaphragm 316.
That is, the sealed speaker without the ventilation duct in the enclosure 320, by sealing the sound coming from the rear of the speaker unit 310 so as not to interfere with the sound coming from the front at all so that only the sound coming from the front side can be maximized. Open speaker having a ventilation duct in the enclosure 320, when the resonant frequency occurs according to the elasticity and weight of the air inside the enclosure 320, the phase of the ventilation duct is reversed and the sound comes out half beat late. (310) It feels in the same position as the sound coming from the front and adds lingering sound to the sound coming from the front to reinforce the bass.
The diaphragm 316 of the speaker unit 310 for a portable terminal has excellent high range when manufactured in a hard furnace and low range when produced in a soft furnace, and a polyethylene terephthalate (PET) coated with a coating may be used.
As the speaker unit 310, a micro speaker unit widely used in various electronic products may be applied. The micro speaker unit (hereinafter referred to as a 'speaker unit') 310 is a micro sound output device that generates sound by being embedded in the mobile terminal 100 and the like, and the structure thereof will be described in detail with reference to FIG. 5. As follows.
The speaker unit 310 is provided with a container-shaped frame 311 formed by integrally forming the yoke 312 inside by insert injection molding, and a magnet 313 wound around the voice coil 315. And the magnet plate 314 are stacked and seated inside the yoke 312, and the diaphragm 316 is installed in the frame 311 outside the magnet plate 314, and on the frame 311 outside the diaphragm 316. A breathable cover 319 is formed on the structure.
An anode end 317 consisting of an anode and a cathode of the voice coil 315 is connected to the diaphragm 316, respectively. The other positive end 318 of the voice coil 315 is connected to the terminal 318a which is drawn out of the speaker unit 310 so as to be connected to the positive and negative terminals of the circuit board 200, respectively. At this time, the terminal 318a transfers the magnetic field generated in the voice coil 315 to the magnet plate 314 through the anode end 318 when power is supplied from the power supply unit 190 separately mounted on the circuit board 200. By vibrating the diaphragm 316 to generate a signal sound.
In addition to the structure of the speaker unit 310, the enclosure 320 for sealing the yoke 312 is exposed outside the frame 311 to form a resonance space is coupled.
As shown in FIGS. 4 and 6, the enclosure 320 communicates with the resonance rib 210 serving as an insulating wall formed on the circuit board 200 and having a hollow passage (vent duct) therein. The space extended by the area of the resonance rib 210 can be secured.
The resonance rib 210 includes a main line 211 connected from the enclosure 320 and a plurality of branch lines 212 branched from the main line 211. It can be made of).
Here, the resonance rib 210 may form a structure of an airtight (Acoustic Suspension Type) in which all the ends of each branch line portion 212 are closed. The operation of the speaker with such a sealed resonance rib 210 is similar to the sound generation principle of a conventional sealed speaker. That is, when the electrical signal moves the diaphragm 316 so that the speaker unit 310 is pushed backward, air is moved into the enclosure 320 and the resonance rib 210, which causes the pressurized enclosure 320 and the resonance rib ( As the air in the 210 is rebounded to the front again, the diaphragm 316 is returned to its original position, and because of this principle, the diaphragm 316 vibrates forward and backward, thereby generating sound, and thus excellent bass characteristics.
In addition, the resonance rib 210 may have a structure of a basal reflex type having an opening 213 in which at least one end of each branch line portion 212 is open. The operation of the speaker equipped with such open resonance ribs 210 is similar to the sound generation principle of a conventional open speaker. That is, when the electrical signal moves the diaphragm 316 and the speaker unit 310 pushes backward, the air generated by the operation is discharged to the outside through the opening 213 at the end of the branch line 212, thereby outputting the diaphragm 316. Since the phase of the air generated in the enclosure 320 may be changed out of the opening 213 by changing the phase, a larger phase reversal may be achieved than the sealed type, and thus, the mid / high sound characteristics are excellent.
Although the present invention has been described with reference to the embodiments shown in the accompanying drawings, this may be regarded as exemplary, and a person of ordinary skill in the art may conceive various modifications and equivalent embodiments therefrom. It is to be understood that such equivalent embodiments are also to be included within the claims of the present invention. Therefore, the true scope of protection of the present invention should be determined only by the appended claims.
