JP4513474B2 - Portable electronic devices - Google Patents

Description

The present invention relates to a portable electronic device having a folding mechanism.

Today's portable electronic devices are required to diversify their functions. One of them has a function of outputting audio while displaying video by receiving and storing distributed video content. Recently, in order to play back high-quality and high-quality video content that has been encoded and compressed in the MPEG-2 system or MPEG-4 system, a speaker is connected to both the lid and the main unit. A technique for reproducing in stereo has been devised (see, for example, Patent Document 1).
JP 2002-57768 A (page 4, FIG. 3)

  However, in such a speaker arrangement structure, the lid must be opened with respect to the main body when viewing in stereo. In addition, cellular phones in which a pair of speakers are arranged in the vertical direction have also appeared, but the surround effect cannot be expected with such a speaker arrangement structure.

The present invention has been made in view of such problems, and even in a folded state (closed state), a portable electronic device that can obtain an effective stereo effect while ensuring a display function. and to provide a equipment.

In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a first housing having a display portion having a predetermined aspect ratio, and an end portion of the first housing through a first hinge portion are provided. In a portable electronic device including a second casing that is rotatably coupled, a movable that is connected to the first casing in the first hinge portion and rotates integrally with the first casing. A first state in which the first casing is opened with respect to the second casing , and a second state in which the first casing and the second casing are folded. A first speaker having an opening exposed to the outside in a state of being provided at a free end portion facing the end portion of the second casing , the first state and the second state, a second speaker the opening is exposed regardless of when to reproduce audio data, the said first enclosure 2 of a housing, depending on whether is in the second state or in said first state, said first speaker, or should be played by driving the second loudspeaker, the first a first determination means for determining whether to play by driving a speaker and the second speaker, and a reproduction control means for reproducing audio data output form is determined by the first determination means It is characterized by that.

According to a second aspect of the present invention, in the first aspect of the present invention, the openings of the first speaker and the second speaker are arranged at a position where a surround effect is produced in the second state. It is characterized by.

According to a third aspect of the present invention , in the first or second aspect of the present invention, the housing portion provided with the openings of the first speaker and the second speaker is provided with an acoustic effect. A cavity is provided.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the device has a telephone function, and the voice data is an incoming melody that is reproduced when an incoming call is received in the telephone function. It is characterized by being data.

According to a fifth aspect of the present invention , in the invention according to any one of the first to fourth aspects, when the audio data is reproduced, it is determined whether the audio data is to be output in stereo or monaural. A second determination unit, wherein the reproduction control unit determines that the second determination unit performs stereo reproduction, and the first determination unit determines that the first speaker or the second determination unit When it is determined that the second speaker is driven to reproduce, the right channel and the left channel of the audio data are synthesized and reproduced.

As described above, according to the present invention, both the first and second speakers are connected to each other regardless of whether the first casing is open or closed with respect to the second casing. since the exposed by drives both speakers in each state and output mode for reproducing audio data, the sound from both speakers exposed, it is possible to obtain an effective stereo effect.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view corresponding to a front view of a state in which a lid of a mobile phone 1 according to the present embodiment is opened.
As shown in the figure, the lid 2 is arranged to be openable and closable (vertical rotation (arrow α in FIG. 3) is possible) with respect to the main body 3 around the first hinge 100 as a rotation axis. The rotary shaft can be rotated (horizontal rotation (arrow β in FIG. 1) is possible). On the lid portion 2, a speaker 5 for calling, a display portion 6, and a magnet 51 are arranged. The display unit 6 is arranged on the inner surface of the lid unit 2 and is a 2.7 inch (240 × 428 dot) TFT liquid crystal (having a resolution equivalent to QVGA or HVGA) color liquid crystal capable of displaying an image with an aspect ratio of 16: 9. Become. The magnet 51 is disposed on the inner surface of the lid 2 and at the corner on the free end side.

  The first hinge part 100 includes a movable part 101 that is connected to the lid part 2 and rotates integrally with the lid part 2. The first speaker 7L is exposed to the movable portion 101 when the lid portion 2 shown in FIGS. 1 and 3 is opened and exposed even when the lid portion 2 shown in FIG. 2 is closed. Has been placed.

  The main body 3 includes a key input unit 8, a first side switch 9, a microphone 10, a first magnetic detection unit 28 and a second magnetic detection unit 29, and a built-in antenna 11. The key input unit 8 includes a cross key 81 for moving the focus during menu display, a determination key 82 for determination, an address book key 83 for browsing address book data, and a network connection key 84 for instructing network connection. , A movie playback key 85 for starting the movie playback mode, a mail key 86 for starting the mail mode (reception, creation, editing, transmission), an off-hook key 87, a clear key 88 (cancel detection), an on-hook key 89 ( All clear: Jump instruction to wait for incoming call), and a numeric keypad 810 for inputting a telephone number and a character symbol. The first side switch 9 functions as a manner key in the standby state, and functions as a shutter key in the camera mode.

  The first magnetic detection unit 28 and the second magnetic detection unit 29 are disposed on the inner surface of the main body 3 and at the corners on the free end side. More specifically, as shown in FIG. 2A, the first magnetic detection unit 28 is folded in a state in which the lid unit 2 is folded so as to face the display unit 6 and the key input unit 8. 51 is arranged at a position overlapping with 51. Therefore, in this folded state, the first magnetic detection unit 28 can detect the magnetism of the magnet 51 and outputs the presence / absence of detection of this magnetism.

  Further, the second magnetic detection unit 29 opens the lid 2 from the state of FIG. 2A and rotates the first hinge unit 100 as an axis as shown in FIG. The lid 2 is rotated 180 ° around the axis to be reversed (see FIG. 1), and again, in the viewer mode state shown in FIG. 4 with the lid 2 closed, the lid 2 is disposed at a position directly below the magnet 51. Yes. Therefore, in this folded state, the second magnetism detection unit 29 can detect the magnetism of the magnet 51 and outputs the presence / absence of the magnetism detection.

  2A is a diagram of the mobile phone 1 viewed from the lid 2 side in a state where the lid 2 is folded, FIG. 2B is a diagram viewed from the main body 3 side, and FIG. 2C is an arrow A direction. (D) is the figure seen from the arrow B direction, (e) is the figure seen from the arrow C direction, (f) is the figure seen from the arrow D direction.

  As shown to (a), a pair of buffer members 34 and 34 are provided in the outer surface of the cover part 2, and the free end part side. The buffer members 34 are provided to prevent the key operation unit 8 from being in contact with the back surface of the lid 2 and being damaged in the viewer mode. As shown in (b) and (e), the first speaker 7L is provided at a position where the first speaker 7L is exposed even when the lid 2 is closed, and as shown in (b), the back surface of the main body 3 is provided. Are provided with a notification LED 13 and an imaging lens 17.

  Further, as shown in (c), a connector 32 is provided on one side surface of the main body 3, and a cover 33 that covers a card slot for inserting a card recording medium is detachably provided. Yes. As shown in (d), a first side switch 9, a second side switch 41, and a third side switch 42 are provided on one side surface of the main body 3. The first side switch 9 functions as a manner key in the standby state, and functions as a shutter key in the camera mode. The second side switch 41 is operated to move the focus in the menu display or the like, and the selection of the selection menu is made by operating the third side switch 42.

  Further, as shown in (f) and also shown in (c) and (d), the second speaker 7R is disposed on the end surface of the free end portion of the main body 3. As shown in FIG. 5, the second speaker 7 </ b> R is disposed on the opposite surface of the main board 76 that faces the antenna 11. In the same figure, 71 is a mesh member that covers the second speaker 7R, 72 is a partition member that extends from the case member constituting the main body 3 and contacts the main board 76 behind the second speaker 7R, 73 This is a support member for supporting the main board 76. In the cavity defined by the partition wall member 72 and the support member 73, the sound is output (lateral direction) from the second speaker 7R, so that an acoustic effect is obtained.

  Since the first speaker 7L is disposed in the first hinge portion 100, the first speaker portion 7L is configured such that an acoustic effect is obtained by the cylindrical cavity of the first hinge portion 100.

  FIG. 6 is a block diagram showing a circuit configuration of the mobile phone 1. When the reception signal processing unit 18 receives an instruction to start the data communication mode from the switch circuit 201, the reception signal processing unit 18 starts negotiation (terminal authentication, line connection) with an external wireless base station, and temporarily occupies the communication bandwidth. I do. Then, a signal that is code-modulated to the own device is extracted from the radio signal received by the antenna 11, and is output to the communication data processing unit 202 via the switch circuit 201.

  The communication signal processing unit 19 is always supplied with power in the standby state and in the data communication mode, and the digital modulation signal (transmission voice data, mail data, packet including network connection information) from the communication data processing unit is supplied. Data) is code-modulated and output from the antenna 11. On the other hand, a signal that has been code-modulated to its own device is extracted from the radio signal transmitted from the radio base station and received by the antenna 11, and output to the communication data processing unit 202 via the switch circuit 201.

  The first control unit 20 performs processing centering on connection control with information resources such as a radio base station and a database connected via a network infrastructure such as a communication service provider or the Internet at the subsequent stage. In the present embodiment, the mobile phone 1 includes two control units, and the first control unit 20 for general communication processing and the like, as well as shooting processing, image processing, and video playback processing. This is performed by the second control unit 22 described later.

  The switch circuit 201 receives a control signal from the communication data processing unit 202, and controls the supply of power to the reception signal processing unit 18 and the communication signal processing unit 19 and the end of processing operation. Specifically, in the normal power-on state or the reception ON mode state, power is supplied only to the communication signal processing unit 19 to operate, while the user operates the network connection key 84, or When the start of the data communication mode is instructed according to a preset schedule, the reception signal processing unit 18 and the communication signal processing unit 19 are operated.

  The communication data processing unit 202 modulates CELP digital audio data output from the audio processing unit 205 into a signal corresponding to the PSK system, and modulates the signal into a spread code, and also receives the received signal processing unit 18 and the communication signal processing unit 19. The code-modulated signal received at 1 is decoded into a digital signal of the PSK system and / or QAM system. Reference numeral 2020 denotes an ID memory, which is assigned to the mobile phone 1 in advance and stores unique information for wireless base station, communication service provider, and Internet connection. This information is, for example, a service code assigned to each service provider, a telephone number for calling the mobile phone 1, a manufacturer code of the mobile phone 1, or for connecting to the Internet. IP address and mail address are included.

  The system ROM 203 stores a control program for communication control. As a feature of the present embodiment, an operation switching control program between the reception signal processing unit 18 and the communication signal processing unit 19 is stored in addition to a normal communication negotiation program. Thereby, when the start of the data communication mode is instructed, the reception by the antenna 11 is performed, and the communication bandwidth is temporarily occupied, and is output from both the reception signal processing unit 18 and the communication signal processing unit 19. The code-modulated signal is decoded and combined into a QAM digital signal (video content compressed in MPEG-2 or -4 format in the present embodiment) almost simultaneously, via the interface processing unit 204. The program to be output to the bus 200 is stored. The audio processing unit 205 has a CELP audio modulation / demodulation system, to which the call speaker 5 and the microphone 10 are connected.

  The switch 31 outputs an audio signal from the audio output system driver 30 to the second speaker 7R when the audio data (audio data) stored in the movie file is stereo-compatible under the control of the second control unit 22. . The first speaker 7L is driven not only by the audio output system driver 30 but also by the notification driver 26 and generates an incoming notification sound.

  The second control unit 22 controls the movie file downloaded in the data communication mode in the movie playback mode, the still image / moving image playback display process in the camera mode, and the overall shooting process in the camera mode. In the present embodiment, parallel processing with the first control unit 20 described above is possible at the time of an incoming call interruption by the mobile phone function, but the address / data interruption processing to the bus 200 accompanying these processing is as follows. It is assumed that the interface processing unit 204 performs it.

  The program ROM 23 stores processing programs such as a movie playback mode and a camera mode, and also stores a control program for the display driver 61 that controls a write start / end address to the display buffer 62 to be described later. Loaded into the second control unit 22

  The RAM 24 stores various data required for data communication processing and voice communication. Specifically, as shown in FIG. 7, an address book storage area 241 that stores a telephone number, an e-mail address, an address, and a unique image (image or illustration) in association with each other, e-mail transmitted and received by e-mail communication Mail data storage area 242 for storing data, image storage area for storing images (still images / moving images) attached to the mail and images taken in camera mode (still images / moving images) in a compressed state 243, download data storage area 244 for storing compressed multimedia files (illustrations, still images, moving images (including 16: 9 aspect), melody, audio) received via network connection, and compression processing of various files Each area of the work memory 245 is provided for temporary use during decompression processing.

  The compression / decompression processing unit 25 complies with MPEG-2 and -4, compresses still images / moving images shot in the camera mode, and downloads the movie file downloaded in the data communication mode in the movie playback mode, and the camera mode. The still image / moving image is expanded.

  When detecting the incoming call process, the notification driver 26 operates the notification LED 13 and the first speaker 7L in order to notify this. The switch processing unit 27 outputs control signals to the first control unit 20 and the second control unit 22 in response to operation detection from the key input unit 8, the first side switch 9, the second side switch 41, and the third side switch 52. Output. On the other hand, according to detection signals from the first magnetic detection unit 28 and the second magnetic detection unit 29 described later, the operation detection of the key input unit 8, the first side switch 9, and the second side switch 4 is turned on / off. Upon receiving a change signal, the function of these keys and switches is controlled. The first magnetic detection unit 28 and the second magnetic detection unit 29 detect the magnetism of the magnet 51 as described above, and output a signal to the second control unit 22.

  Reference numeral 17 denotes a camera lens. In the subsequent stage, an imaging device 171 including an image sensor such as a CCD or CMOS and a step motor for optical zoom and an analog signal captured by the imaging device are converted into a digital signal. And a DSP 172 for generating image data. The effective pixel area of the image sensor in the present embodiment is fixed to an aspect ratio of 4: 3.

  Furthermore, the connector 32 is connected to the bus 200 via a connector interface, and a card connector 330 covered by the free cover 33 is connected. A card recording medium 331 is detachably attached to the card connector 330.

  In the present embodiment having the above-described configuration, when the mobile phone 1 is in an incoming call waiting state, the second control unit 22 performs all except step S9 in the flowchart of FIG. 8 based on the program stored in the system ROM 203. Execute the process. That is, it is determined whether or not a key operation is detected (step S1), and if detected, a menu screen is displayed on the display unit 6 (step S2). Subsequently, it is determined whether or not selection of a media file from the displayed menu screen is detected (step S3), and if detected, the process shifts to a state of waiting for a reproduction instruction (step S4). Further, in the state of waiting for the reproduction instruction, it is determined whether or not a reproduction operation has been detected (step S5). If detected, it is determined whether or not the reproduction target media file is a stereo-compatible file. (Step S6).

  If the file is a stereo-compatible file (step S6; YES), it is determined whether or not the mobile phone 1 is in the viewer mode (step S7). That is, in the viewer mode state shown in FIG. 4, as described above, the second magnetic detection unit 29 detects the magnetism of the magnet 51, and the first magnetic detection unit 28 detects the magnetism of the magnet 51. It is not detected. Accordingly, when the second magnetic detection unit 29 is in the detection state and the first magnetic detection unit 28 is in the non-detection state, the viewer mode is determined.

  If it is in the viewer mode state, the switch 31 is turned on to drive the first speaker 7L and the second speaker 7R to execute the stereo reproduction process (step S8). As a result, as shown virtually in FIG. 4, reproduced sound is emitted from the first speaker 7L and the second speaker 7R, and the user can obtain the surround effect as well as the stereo effect in the viewer mode state. At this time, since the display unit 6 is in a state of facing the user, an image based on the media file is reproduced and displayed on the display unit 6 and is reproduced from both speakers 7L and 7R while viewing the image and the like. A sound surround effect can be obtained.

  If it is determined in step S7 that the viewer mode is not set, the first control unit 20 operates to combine the R channel and the L channel of the stereo-compatible file to be played back (step S7). S9). Then, the second control unit 22 turns off the switch 31, and executes a reproduction process of the sound synthesized only by the first speaker 7L (step S10).

  On the other hand, if it is determined in step S6 that the file is not a stereo-compatible file but a monaural file, it is determined whether or not the mobile phone 1 is in the viewer mode (step S11). If it is in the viewer mode state, the switch 31 is turned on to drive the first speaker 7L and the second speaker 7R to execute monaural reproduction processing (step S12). When the viewer mode is not set, the switch 31 is turned off, and monaural sound reproduction processing is executed only by the first speaker 7L (step S10).

  If an incoming call request is received during the reproduction process described above, the process from step S6 is executed, and it is determined in step S6 whether the incoming melody file is a stereo-compatible file. If the ringing melody file is a stereo-compatible file, the processes of steps S7 to S10 are executed. If the ringing melody file is not a stereo-compatible file, the processes of steps S11 to S13 are executed. Therefore, when the ringing melody is reproduced, the surround effect can be obtained together with the stereo effect in the viewer mode state.

  In the present embodiment, in the case of monaural output, only the first speaker 7L is used, but it may be performed by the second speaker 7R.

  In this embodiment, wireless high-speed data communication based on HDR (High Data Rate) in CDMA 20000 1xEV-DO has been described in detail. However, HSDPA (High Speed Downlink Packet) in so-called 3.5 generation mobile phone service is described. (Access) technology may be used for high-speed data communication.

It is a front view of the state which opened the cover of the mobile telephone which concerns on one embodiment of this invention. (A) The figure which looked at the mobile telephone in the state which folded the cover part from the cover part side, (b) The figure seen from the main-body part side, (c) The figure seen from the arrow A direction, (d) Is a view seen from the arrow B direction, (e) is a view seen from the arrow C direction, and (f) is a view seen from the arrow D direction. It is a side view of the state which opened the cover part simply. It is a figure which shows a viewer mode state. It is a partially broken sectional view which shows the arrangement structure of a 2nd speaker. It is a block diagram which shows the circuit structure of a mobile telephone. It is a memory block diagram of RAM. It is a flowchart which shows a process sequence.

Explanation of symbols

1 Mobile phones (portable electronic devices, mobile phones)
2 Lid (first housing)
3 Main body (second housing)
5 Speaker for call 6 Display section (display means)
7L first speaker (first speaker)
7R Second speaker (second speaker)
10 microphone 11 antenna 12 second hinge part (second hinge part)
13 Notification LED
16 digital zoom 16 built-in antenna 17 imaging lens 18 received signal processing unit 19 communication signal processing unit 20 first control unit 21 switch 22 second control unit (second determination unit, reproduction control unit)
23 Program ROM
24 RAM
27 switch processing unit 28 first magnetic detection unit (first determination means)
29 Second magnetic detector (first determination means)
30 Audio output system driver 31 Switch 61 Display driver 62 Display buffer 100 1st hinge part (1st hinge part)
202 Communication data processing unit 203 System ROM
205 Voice processing unit 241 Address book storage area 245 Work memory

Claims (5)

A first housing having a display unit having a predetermined aspect ratio, and a second housing whose end is rotatably coupled to the first housing via a first hinge. In the portable electronic device provided,
The first hinge part is provided in a movable part that is linked to the first casing and rotates integrally with the first casing, and the first casing is in relation to the second casing. A first speaker in which the opening is exposed to the outside in the opened first state and the second state in which the first housing and the second housing are folded ;
A second speaker provided at a free end facing the end of the second housing, the opening of which is exposed regardless of the first state and the second state ;
When reproducing the audio data, the first speaker or the second housing depends on whether the first housing and the second housing are in the first state or the second state. First determination means for determining whether to drive and reproduce by driving a second speaker, or to drive and reproduce the first speaker and the second speaker;
A portable electronic device comprising: a reproduction control unit that reproduces audio data in an output form determined by the first determination unit. The opening of the first speaker and the second speaker, in the second state, the portable electronic device according to claim 1, characterized in that it is arranged in a position to achieve the surround effect. The portable type according to claim 1 or 2, wherein a cavity for obtaining an acoustic effect is provided in a housing portion provided with openings of the first speaker and the second speaker. Electronics. The device has a telephone function,
The portable electronic device according to any one of claims 1 to 3, wherein the voice data is incoming melody data that is reproduced when an incoming call is received in the telephone function. A second determining means for determining whether the audio data is to be output in stereo or monaural when the audio data is reproduced;
The reproduction control means determines that the second determination means performs stereo reproduction, and the first determination means drives the first speaker or the second speaker for reproduction. determination result, portable electronic device according to any one of claims 1 to 4, characterized in that play by synthesizing the right and left channels of the sound data.

Images