JP4117254B2 - Mobile phone equipment - Google Patents

Description

  The present invention relates to a mobile phone device, and more particularly to a configuration in which an LCD (liquid crystal display) display unit and a key input unit can be separated.

In the conventional camera-equipped mobile phone device, the LCD display unit and the key input unit cannot be separated.
In addition, a digital camera equipped with a plug-in type connector is connected to a mobile phone, and an image captured by the digital camera is displayed on the display of the mobile phone via data transfer means provided on the digital camera side. It is disclosed in Patent Document 1.

JP 2002-77701 A

In conventional mobile phone devices with cameras, the LCD display unit and key input unit cannot be separated, and they operate as mobile phones even when they are used as digital cameras. Therefore, they consume a large amount of current and lack portability. It was. In addition, when used in places where radio waves do not reach or when traveling overseas, the current consumption is high, so the battery was consumed at the destination, and it often fell into itself that it could not be used as a telephone when returning home.
In addition, what connects the digital camera provided with the plug-in type connector of patent document 1 to a mobile phone, and displays the image | photographed image | video on the display of a mobile phone via the data transfer means with which the digital camera side is provided. In the state where the video shot with the digital camera is separated from the mobile phone, it cannot be played back with the digital camera itself.

  The present invention has been made to solve the above-described problems, and can be used separately for an LCD display unit and a key input unit, is excellent in portability, and can be used as a digital camera with playback only by an LCD display unit. The purpose is to obtain a mobile phone device that can be used.

  The cellular phone device according to the present invention comprises an LCD display unit, a key input unit, and a battery pack as an external power source. The LCD display unit is also provided in a camera unit, a shutter switch, a memory, an LCD, and the key input unit. A connector for connecting to the battery pack; and a control CPU for controlling the connector. The key input unit includes a connector group for connecting a key group, a memory, and the LCD display unit. A control CPU that controls the LCD display unit, and functions as a camera-equipped mobile phone when the LCD display unit and the key input unit are combined, separates the LCD display unit and the key input unit, and The battery pack is connected to the LCD display unit so that the LCD display unit functions as a digital camera.

  According to the camera-equipped cellular phone device of the present invention, in addition to the normal camera-equipped cellular phone function in which the LCD display unit and the key input unit are combined, the LCD display unit and the key input unit can be used separately. By connecting the battery pack, it is possible to obtain a mobile phone device that can use the LCD display unit as a digital camera with reproduction that is excellent in portability.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a cellular phone device according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view showing the LCD display unit, the key input unit, and the battery pack from which the cellular phone device according to the first embodiment is separated. In the figure, the mobile phone device is composed of an LCD display unit 100a, a key input unit 100b, and a battery pack 101 (see FIG. 2) as an external power source, and a connector 102a provided on the LCD display unit 100a, a key input unit. A connection connector 102b provided in 100b is connected to form a configuration of the mobile phone with camera of the mobile phone device during normal use. Reference numeral 1 denotes a graphic (control) CPU that controls the camera unit 7 and the LCD 4 under the control of the main (control) CPU 11 mounted on the key input unit 100b. Compress and convert to format, convert number of colors and size. The graphic CPU 1 incorporates a ROM that stores the CPU control program and fixed data, and a RAM memory that provides temporary storage and a work area for the CPU.

  2 is a shutter switch, 3 is a memory card for storing camera image data and the like, 4 is an LCD (liquid crystal display) for displaying image and character information, and 5 is an LCD display unit 100a and a key input unit 100b separated. In this case, a power supply circuit 6 is a detection circuit for detecting that the LCD display unit 100a and the key input unit 100b are separated, normally connected, and reversely connected. 7 is a CCD camera unit for taking an image, 8 is a receiver, 9 is a first selector for switching a signal line between the LCD display unit 100a and the key input unit 100b at the time of reverse connection, and 10 is an internal battery 14 of the key input unit 100b. This is a second selector for selecting an external battery pack 101.

  A main CPU 11 controls the entire LCD display unit 100a and key input unit 100b of the mobile phone device, and provides a ROM storing a control program and fixed data of the CPU 11, a temporary storage and a work area of the CPU 11. Built-in RAM memory. 12 is a key group including a numeric keypad and character keys, 13 is a power supply circuit, 14 is an internal battery, 15 is a sound generator generating circuit for controlling sound, 16 is a speaker for sounding, 20 is a microphone, 17 is flash memory, and 18 is Reference numeral 19 denotes an antenna that includes a modulation / demodulation circuit and a communication circuit for controlling wireless communication of voice and data.

  2A shows the LCD display unit 100a, FIG. 2B shows the key input unit 100b, and FIG. 2C shows the external power supply of the LCD display unit 100a separated from the key input unit 100b. The battery pack 101 to be connected is shown. The rotation part 51 of the key input part 100b is pivotally attached by the case frames 52 at both ends. Engaging claws 53 and 53 are pressed and held in the rotating part 51 by springs (not shown) in both ends of the rotating part 51, and these are inserted into the engaging holes 54 and 54 of the LCD display part 100a. Thus, the LCD display unit 100a is mechanically coupled to the key input unit 100b. Simultaneously with this coupling, the pin terminal group 55 and the terminal receiving group 56 are electrically connected.

  The LCD display unit 100a and the key input unit 100b can be folded by rotating the rotating unit 51 in a state where the LCD display unit 100a and the key input unit 100b are coupled. Further, in a state where the LCD display unit 100a and the key input unit 100b are coupled, by pressing the buttons 57, 57 at both ends of the rotating unit 51, the engaging claws 53, 53 are moved against the springs. As a result, the engaging claws 53, 53 can be detached from the engaging holes 54, 54, and the LCD display portion 100a and the key input portion 100b can be separated.

  In a state where the LCD display unit 100a and the key input unit 100b are separated, the battery pack 101 is coupled to the LCD display unit 100a, and at the same time, the pin terminal group 58 and the terminal receiving group 56 are electrically connected to each other. 101 is connected to the LCD display unit 100a. In order to mechanically strengthen the connection between the LCD display unit 100a and the battery pack 101, it is effective to provide an engagement claw on the battery pack 101 and fit it into the engagement hole 54 of the LCD display unit 100a. is there.

  FIG. 3 is a block diagram illustrating a configuration when the LCD display unit and the battery pack of the mobile phone device according to the first embodiment are connected. The battery pack 101 has a connection connector 103 that is connected to the connection connector 102a of the LCD display unit 100a. The battery 41 of the battery pack 101 is connected to the power supply circuit 5 of the LCD display unit 100a through the connectors 103 and 102a when connected to the LCD display unit 100a. The graphic CPU 1 operates the digital camera function without control from the main CPU 11 when the LCD display unit 100a and the key input unit 100b are separated. The receiver 8 functions as a sounder that emits a shutter sound or the like in the digital camera function.

  The operation of the cellular phone device during normal use will be described with reference to FIGS. FIG. 5 is a flowchart for explaining the operation mode setting of the present invention. During normal use in which the LCD display unit 100a and the key input unit 100b are combined, the α line connected to the connector 102a of the detection circuit 6 is L (low level) and the β line is L in the detection circuit check S1. A signal indicating the normal mode is sent from the detection circuit 6 to the graphic CPU 1. At this time, since the α line is connected to the signal line A that is grounded to the ground, the α line is at L level, and the β line is also connected to the signal line A that is grounded to the ground, so that it is at the L level. Receiving the signal indicating the normal mode, the graphic CPU 1 sets itself to the slave mode (S2), selects the A line as the signal of the first selector 9 (S3), and sets the second selector 10 to the internal power supply 14. (S4). This enables the same function as the camera-equipped mobile phone.

  The operation when the battery display is attached to the LCD display unit when the LCD display unit and the key input unit of the cellular phone device are separated will be described with reference to FIGS. When the LCD display unit 100a and the key input unit 100b are separated and the battery pack 101 is attached to the LCD display unit 100a, the α line of the detection circuit 6 becomes H (high level) and the β line becomes H in the detection circuit check S1. Therefore, a signal indicating the digital camera mode is sent from the detection circuit 6 to the graphic CPU 1. At this time, since the H level of the power source is supplied from the battery pack 101 to the signal line A, both the α line and the β line are at the H level. The graphic CPU 1 that has received the signal indicating the digital camera mode sets itself to the master mode (S11), and sets the second selector 10 to the external power source of the battery pack 101 via the power supply circuit 5 (S12). As a result, the LCD display unit and the external power supply of the battery pack 101 function independently as a digital camera. When the LCD display unit 100a functions independently as a digital camera, the battery pack 101 of the external power source is used, so that the internal battery 14 is preserved. Therefore, when the LCD display unit 100a and the key input unit 100b are combined and returned to normal use, the stored internal battery can be used without worrying about running out of the battery.

Embodiment 2. FIG.
FIG. 4 is a block diagram illustrating a configuration when the LCD display unit and the key input unit of the mobile phone device according to the second embodiment are reversely connected. The same reference numerals denote the same parts as those in the first embodiment. The operation when the mobile phone device is reversely connected will be described with reference to FIGS. 4 and 5. FIG. When the LCD display unit 100a and the key input unit 100c are reversely connected by reverse insertion, the detection circuit check S1 causes the α line of the detection circuit 6 to be L and the β line to be H. A signal indicating reverse connection mode is sent to the graphic CPU 1. At this time, since the α line is connected to the signal line B grounded to the ground, it is at the L level, and the β line is connected to the signal line B to which the H level of the power supply is supplied. It becomes. Receiving the signal indicating the reverse connection mode, the graphic CPU 1 sets itself to the slave mode (S21), selects the B line as the signal of the first selector 9 (S22), and sets the second selector 10 to the internal power supply 14 (S23). As a result, the signal lines between the LCD display unit 100a and the key input unit 100c are switched, and the mobile phone can be operated.

  In this case, it is possible to display various information of the cellular phone on the LCD 4 in a folded and closed state without the sub LCD normally mounted on the back surface. FIG. 6 is a perspective view showing a state in which the LCD display unit and the key input unit are connected by reverse connection and are folded and closed in the second embodiment. When folded, the display surface of the LCD 4 is usually arranged on the inner side, but since it is connected by reverse insertion, the display surface of the LCD 4 is arranged on the outer side. Note that when the display surface of the LCD 4 is arranged on the outside, the display direction is reversed, so it is effective to reverse the display direction. In addition, in order to detect the closed state in which the LCD display unit and the key input unit are folded, a magnet and a switch are arranged on the inner side to be folded, and the switch is operated when the magnet is attracted to the opposite surface by folding. What should I do? In addition, when an incoming call is received in a state where they are connected by reverse insertion, a microphone can be mounted on both sides of the key input unit so that the call can be made as it is.

  The present invention is suitable for application to a mobile phone device from which a digital camera can be separated.

It is a block diagram which shows the structure of the mobile telephone apparatus which is Embodiment 1 of this invention. FIG. 3 is an exploded perspective view showing an LCD display unit, a key input unit, and a battery pack separated from the mobile phone device according to the first embodiment. 3 is a block diagram illustrating a configuration when the LCD display unit and the battery pack of the mobile phone device according to Embodiment 1 are connected. FIG. FIG. 6 is a block diagram showing a configuration when an LCD display unit and a key input unit of the mobile phone device according to the second embodiment are reversely connected. It is a flowchart explaining the operation mode setting of this invention. FIG. 10 is a perspective view showing a state where the LCD display unit and the key input unit are coupled by reverse connection and folded in Embodiment 2.

Explanation of symbols

1 Graphic (control) CPU 2 Shutter switch 3 Memory card 4 LCD
DESCRIPTION OF SYMBOLS 5 Power supply circuit 6 Detection circuit 7 Camera part 8 Receiver 9 1st selector 10 2nd selector 11 Main CPU 12 Key group 13 Power supply circuit 14 Internal battery 15 Sound source generation circuit 16 Speaker 17 Flash memory 18 Radio | wireless part 19 Antenna 20 Microphone 51 Rotation Part 52 Case frame 53 Engaging claw 54 Engaging hole 55 Pin terminal group 56 Terminal receiving group 57 Button 58 Pin terminal group 100a LCD display part 100b Key input part 100c Key input part 101 Battery pack 102a Connector 102b Connector for connection.

Claims (4)

It consists of an LCD display unit, key input unit, and a battery pack that is an external power supply.
The LCD display unit includes a camera unit, a shutter switch, a memory, an LCD, a connection connector that can be connected to the key input unit and the battery pack, and a control CPU that controls these connectors.
The key input unit includes a key group, a memory, a connector for connecting the LCD display unit, and a control CPU for controlling these and the LCD display unit.
When the LCD display unit and the key input unit are combined, it functions as a camera-equipped mobile phone,
A mobile phone device, wherein the LCD display unit and the key input unit are separated, and the battery pack is connected to the LCD display unit so that the LCD display unit functions as a digital camera. 2. The cellular phone device according to claim 1, wherein the key input unit further includes a sound source generation circuit, a speaker, a microphone, a radio unit, and an antenna.   The LCD display unit is separated from the key input unit, and a detection circuit for detecting that the battery pack is connected to the connection connector of the LCD display unit is provided in the LCD display unit, and the detection circuit includes the battery When the connection of the pack is detected, this is transmitted to the control CPU of the LCD display unit so that the control CPU functions independently as a digital camera. Item 3. The cellular phone device according to item 1 or 2.   When the separated key input unit and the LCD display unit are connected by reverse insertion, the detection circuit for detecting this is provided in the LCD display unit, and when the detection circuit detects reverse connection, the connection is detected. 3. The mobile phone according to claim 1, wherein the mobile phone according to claim 1 or 2, wherein the control CPU of the LCD display unit is instructed to operate normally by switching a signal line between the LCD display unit and the key input unit. Telephone device.

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