JP2008141535A - Cellular phone controller and mechanical image shake control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cellular phone controller and a mechanical image shake control method for mechanically adjusting shake of a cellular phone. <P>SOLUTION: The cellular phone controller includes: a sensor part 10 having a gyro sensor 12 which measures rotational speed, an acceleration sensor 14 which measures acceleration and an A/D converter 18; a processor part 20 having a baseband part 22 and a motion controller 24; and a liquid crystal display axis adjustment motor driver part 30 having an X axis adjustment motor driver 32 and a Y axis adjustment motor driver 34, wherein the gyro sensor corrects the acceleration sensor 14 when there is a relatively fast motion based on measurement data of the gyro sensor 12 and the acceleration sensor 14 and the acceleration sensor 14 corrects the gyro sensor 12 when there is a relatively slow motion. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile phone control device and a mechanical image shake control method, and more particularly to a mobile phone control device and a mechanical image shake control method that are arranged inside a mobile phone and mechanically adjust shake.

  Recent mobile phones have a TV phone function, and the face of the other party can be output to a liquid crystal display (LCD) for conversation. In addition, a TV viewing function is provided so that the user can watch the TV from the LCD of the mobile phone. In the future, terrestrial digital broadcasts can also be viewed from mobile phones. In this way, opportunities to obtain information from the LCD screen are increasing.

  However, the above-mentioned failure has also occurred. For example, when you are on a vehicle such as a train or car, when you set the mobile phone to the TV function and watch the TV, the TV image on the LCD always shakes from the line of sight due to subtle movements of the vehicle. I cannot see the video information. Even in a stationary state, the TV image on the LCD always shakes from the line of sight due to the touch, and accurate moving image information cannot be seen.

  The amount of shaking of the planar matrix display section that has an image display area larger than the actual image display area that displays an image corresponding to the input video signal is detected by the shaking amount detection section, and displayed based on the amount of shaking by the shaking correction section. By controlling the drive unit, the real image display area of the planar matrix display unit is moved, and the image display device that corrects the shaking of the display image due to the horizontal and vertical shaking of the planar matrix display unit is as follows. It has already been disclosed (for example, see Patent Document 1). According to the image display device according to Patent Document 1, in an in-vehicle image display device with vibration, it is possible to easily display an image that is difficult to view due to vibration.

Based on the front wheel rotation detection signal received from the transmitter to the receiving circuit of the receiver, the front wheel size stored in advance in the RAM, and the timing data obtained by the timing circuit, the CPU calculates the running state of the bicycle and registers in the RAM. And displayed on the LCD display unit, and the X and Y acceleration signals accompanying the shaking of the receiver detected by the X direction acceleration sensor and the Y direction acceleration sensor exceed a preset threshold level. Has already been disclosed about a display device configured such that a high-level acceleration detection signal is supplied from the waveform detection unit to the CPU only during a period exceeding the period, and the display of each running state data on the LCD display unit is turned off. (For example, refer to Patent Document 2). According to the image display device according to Patent Document 2, in a display device that is attached to an automobile or the like and displays the running state of the vehicle, for example, even when the display screen shakes due to the vibration of the vehicle, the display screen The display contents in can be displayed in an easy-to-read manner.
JP 09-009179 A Japanese Patent Laid-Open No. 08-094389

  The object of the present invention is to adjust the shake of a mobile phone mechanically, eliminate a shake of an image caused by the shake of a mobile phone when watching a TV from a mobile phone or making a videophone. Another object of the present invention is to provide a mobile phone control device and a mechanical image shake control method that can be controlled to a minimum.

According to one aspect of the present invention, (b) a sensor unit having a gyro sensor that measures rotational speed, an acceleration sensor that measures acceleration, and an A / D converter, (b) a central processing unit, and a digital signal A baseband unit having a processor, a processor unit having a motion controller unit, and (c) a liquid crystal display axis adjustment motor driver unit having an X-axis adjustment motor driver and a Y-axis adjustment motor driver. Based on the measurement data of the sensor and the acceleration sensor, the gyro sensor corrects the acceleration sensor when there is a relatively fast movement, and the acceleration sensor detects the gyro sensor when there is a relatively slow movement. A mobile phone control device for correction is provided.

  According to another aspect of the present invention, there is provided a mechanical image shake control method for a mobile phone control device including (a) a sensor unit, a processor unit, and an LCD axis adjustment motor driver unit, and (b) a sensor unit. And (c) converting an analog signal of X, Y, and Z axis fluctuation widths into a digital signal by an A / D converter in the sensor unit, and (d) the obtained digital Transmitting signal data to a baseband unit in the processor unit and processing the data; (e) transmitting data processed in the baseband unit to a motion controller unit in the processor unit; and (f) a motion controller unit. The data sent to is converted into pulse step signals for driving the motor and X, Y, and Z direction signal data. The step of outputting to the motor driver section, and (g) the X-axis adjustment motor, the Y-axis adjustment motor driver, and the Z-axis adjustment motor driver in the LCD axis adjustment motor driver section, respectively, And a step of driving a Z-axis adjustment motor.

  According to the mobile phone control device and the mechanical image shake control method of the present invention, when the mobile phone is mechanically adjusted to shake, when riding on a vehicle and watching TV from a mobile phone or making a video phone call, Image shake caused by mobile shake can be eliminated or controlled to a minimum.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the relationship between the size and thickness of each block and the planar dimensions is different. Accordingly, the size, specific thickness and dimensions of each block should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

  Further, the embodiments described below exemplify apparatuses and methods for embodying the technical idea of the present invention, and the technical idea of the present invention includes the material, shape, structure, The layout is not specified as follows. The technical idea of the present invention can be variously modified within the scope of the claims.

[First embodiment]
(Mobile phone control device)
The configuration of the mobile phone control device according to the first embodiment of the present invention measures accelerations of gyro sensors (X, Y, Z) 12 and 3D that measure the rotational speed of a 3D object, as shown in FIG. A sensor unit 10 having an acceleration sensor (X, Y) 14, a geomagnetic sensor (Z) 16 for measuring geomagnetism, and an A / D converter 18, a central processing unit (CPU) 21, and a digital signal processor (DSP) ) LCD (liquid crystal display) having a baseband unit 22 having 23, a processor unit 20 having a motion controller unit 24, an X-axis adjustment motor driver 32, a Y-axis adjustment motor driver 34, and a Z-axis adjustment motor driver 36 And an axis adjustment motor driver unit 30. The LCD axis adjustment motor driver unit 30 transmits / receives processing data to / from the processing data monitor 40.

  As shown in FIG. 1, the configuration of the mobile phone control device according to the first embodiment of the present invention includes a gyro sensor (X, Y, Z) 12, an acceleration sensor (X, Y) 14, a geomagnetic sensor (Z ) 16 constitutes the sensor unit 10, which is characterized by the quick rotation speed of the gyro sensor (X, Y, Z) 12, the acceleration sensor (X, Y) 14, and the magnetic sensor (Z). When a quick movement is made by combining a sensor that can slowly grasp the position shift, such as a slow movement as shown in FIG. 16, the gyro sensor (X, Y, Z) 12 is moved to the acceleration sensor (X, Y ) 14 and the geomagnetic sensor (Z) 16 are corrected, and the acceleration sensor (X, Y) 14 and the geomagnetic sensor (Z) 16 correct the gyro sensor (X, Y, Z) 12 when moving slowly. So that it is accurate in all states This is to capture 3D motion.

  The mobile phone control device according to the first embodiment of the present invention is arranged inside a mobile phone. As described above, the mobile phone control device according to the first embodiment of the present invention is provided with the sensor unit 10 that senses minute X, Y, and Z-axis shakes, and digitally outputs shake angle information from the sensor unit 10. The signal is converted into a signal, and calculation and data processing are performed by the CPU 21 and the DSP 23 in the baseband unit 22, and the data is mechanically adjusted via the motion controller unit 24. Thus, for example, when a user rides a vehicle and watches TV from a mobile phone or makes a videophone call, image shake caused by mobile shake can be eliminated or controlled to a minimum.

  The configuration of the mobile phone control device according to the modified example of the first embodiment of the present invention includes a gyro sensor (X, Y) 13, 2D that measures the rotational speed of a 2D object, as shown in FIG. A sensor unit 10 having an acceleration sensor (X, Y) 14 and an A / D converter 18 for measuring the acceleration of the object, a central processing unit (CPU) 21, and a digital signal processor (DSP) 23. A processor unit 20 having a baseband unit 22 and a motion controller unit 24, and an LCD (liquid crystal display) axis adjustment motor driver unit 30 having an X-axis adjustment motor driver 32 and a Y-axis adjustment motor driver 34 are provided. The LCD axis adjustment motor driver unit 30 transmits / receives processing data to / from the processing data monitor 40.

  That is, the sensor unit 10 may have a 2D configuration of the gyro sensor (X, Y) 13 and the acceleration sensor (X, Y) 14. The LCD axis adjustment motor driver unit 30 includes an X axis adjustment motor driver 32 and a Y axis adjustment motor driver 34 corresponding to the 2D configuration.

(Mechanical LCD image shaking control method)
The mechanical image shake control method of the mobile phone control device according to the first embodiment of the present invention can be expressed using a flowchart as shown in FIG.

  For example, the following processing flow is executed when a mobile phone is shaken due to shaking of the vehicle or when the mobile phone is shaken due to shaking of the mobile phone while watching a TV on a mobile phone while riding a vehicle.

(A) First, in step S1, shaking is detected by the sensor unit 10.

(B) Next, in step S2, the analog signal of the X, Y, and Z axis swing widths is converted into a digital signal by the A / D converter 18 in the sensor unit 10.

(C) Next, in step S3, the obtained digital signal data is transmitted to the baseband unit 22 in the processor unit 20, and the data input to the baseband unit 22 is converted into data by the processors of the CPU 21 and the DSP 23. It is processed.

(D) Next, in step S <b> 4, the data processed in the baseband unit 22 is transmitted to the motion controller unit 24.

(E) Next, in step S5, the data transmitted to the motion controller 24 is converted into pulse step signals for driving the motor and X, Y, and Z direction signal data in the motion controller 24. And output to the LCD axis adjustment motor driver unit 30.

(F) Next, in step S6, the X-axis adjustment motor driver 32, the Y-axis adjustment motor driver 34, and the Z-axis adjustment motor driver 36 in the LCD axis adjustment motor driver section 30 respectively perform X, Y, and Z steps. The signal and the X, Y, and Z direction signals are D / A converted and input to an amplifier, and these digital signals are converted in the correct order by the amplifier to supply current to each coil of the motor.

(G) Next, in step S7, the current supplied to each coil of the motor is monitored by the processing data monitor 40, and the X-axis adjustment motor 54, the Y-axis adjustment motor 56, and the Z-axis adjustment motor 58 are driven.

  As shown in FIG. 4, the mobile phone control device according to the first embodiment of the present invention includes a rotary table 52 having an X-axis adjustment motor 54, a Y-axis adjustment motor 56, and a Z-axis adjustment motor 58, and a rotation. And an X-axis adjusting motor driver 32 for driving an X-axis adjusting motor 54, and a Y-axis adjusting motor driver 34 for a Y-axis adjusting motor 56. The Z-axis adjusting motor driver 36 drives the Z-axis adjusting motor 58, so that the rotary table 52 moves in the opposite direction to the vibration of the mobile phone with respect to the X, Y and Z axes. To do. That is, the currents supplied to the coils of the X-axis adjustment motor 54, the Y-axis adjustment motor 56, and the Z-axis adjustment motor 58 are the currents of the X-axis adjustment motor 54, the Y-axis adjustment motor 56, and the Z-axis adjustment motor 58, respectively. Move each motor. By driving the X-axis adjustment motor 54, the Y-axis adjustment motor 56, and the Z-axis adjustment motor 58, the rotary table 52 on which the stage 50 is mounted moves by a pulse with respect to the X, Y, and Z axes. Moves in the opposite direction to the vibration of the mobile phone. As a result, shaking of the LCD screen can be prevented.

  In the cellular phone control device according to the first embodiment of the present invention, the stepping motor type is adopted for the positioning control, but it is of course possible to use a DC brush motor or a brushless DC (permanent magnet) motor. It is.

(Electromagnetic control)
Alternatively, precise control in the X-, Y-, and Z-axis directions can be performed using an electromagnet. In the mobile phone control device according to the first embodiment of the present invention, as shown in FIG. 5, an X-axis control plate 62, a Y-axis control plate 64, and a Z-axis control plate 66 are attached to the stage 50. The stage 50 on which the LCD screen of the mobile phone is mounted is controlled by electromagnetically controlling the minute displacements ΔX, ΔY, and ΔZ of the distance between each plate and the stage 50, respectively. It can be precisely controlled in the 3D direction of the axis.

  That is, an X-axis control electromagnet 68 connected to the X-axis control plate 62, a Y-axis control electromagnet 70 connected to the Y-axis control plate 64, and a Z-axis control electromagnet 72 connected to the Z-axis control plate 66. By adjusting the currents Ix, Iy, and Iz flowing through the plate, the minute displacements ΔX, ΔY, and ΔZ of the distances between the plates and the stage 50 are electromagnetically controlled to mount the LCD screen of the mobile phone. The stage 50 can be precisely controlled in the 3D direction of the X axis, the Y axis, and the Z axis.

  Since proportional relationships are established among the currents Ix, Iy, Iz and the minute displacements ΔX, ΔY, ΔZ, control is also easy. The currents Ix, Iy, and Iz can be directly driven from the X-axis adjustment motor driver 32, the Y-axis adjustment motor driver 34, and the Z-axis adjustment motor driver 36.

  The X, Y, and Z axes move in opposite directions with respect to the mobile phone vibration. That is, by adjusting the currents Ix, Iy, and Iz supplied to the coils of the X-axis control electromagnet 68, the Y-axis control electromagnet 70, and the Z-axis control electromagnet 72, the distance between each plate and the stage 50 is adjusted. By electromagnetically controlling the minute displacements ΔX, ΔY, and ΔZ of the distance, the stage 50 on which the LCD screen of the mobile phone is mounted can be precisely controlled in the 3D directions of the X axis, the Y axis, and the Z axis. Moves in the opposite direction to the vibration of the mobile phone. As a result, shaking of the LCD screen can be prevented.

  By disposing the mobile phone control device according to the first embodiment of the present invention in the mobile phone device, it absorbs or eliminates the screen shake of the LCD due to shaking when riding on a vehicle. Can do. With the mobile phone control device according to the first embodiment of the present invention, a mobile screen image (TV, telephone, etc.) with no shaking can be seen at all times even when riding on a vehicle.

  FIG. 6 (a) shows changes in the amplitude in the X and Y axis directions in the case of a mobile phone provided with the mobile phone control device according to the first embodiment of the present invention. FIG. 6B shows changes in the amplitudes in the X- and Y-axis directions when the mobile phone control device according to FIG. That is, when the horizontal axis is taken as the X coordinate and the vertical axis is taken as the Y coordinate, one point of the LCD of the mobile phone is taken as the origin, and the shake when the mobile phone control device according to the first embodiment of the present invention is not put in. FIG. 6 (a) shows the width, and FIG. 6 (b) shows the swing width when the mobile phone control device according to the first embodiment of the present invention is inserted. It can be seen that by inserting the mobile phone control device according to the first embodiment of the present invention, the swing width is reduced to about 1/50 compared to when it is not.

  Next, FIG. 7A schematically shows changes in the amplitude in the Z-axis direction in the case of a mobile phone in which the mobile phone control device according to the first embodiment of the present invention is not arranged. FIG. 7B schematically shows changes in the amplitude in the Z-axis direction in the case of the mobile phone in which the mobile phone control device according to the first embodiment is arranged. That is, the horizontal axis is the XY plane and the vertical axis is Z. When a point on the LCD in the Z coordinate is taken as the origin, the swing width in the Z-axis direction in the case of the mobile phone not including the mobile phone control device according to the first embodiment of the present invention is shown in FIG. FIG. 7B shows the deflection width in the Z-axis direction in the case of the mobile phone including the mobile phone control device according to the first embodiment of the present invention.

  It can be seen that when the mobile phone control device according to the first embodiment of the present invention is inserted, the swing width is similarly reduced to about 1/50 compared to when the mobile phone control device is not inserted.

  As a result, by incorporating the mobile phone control device according to the first embodiment of the present invention into the LCD screen control of the mobile phone, it is possible to detect external shaking and eliminate the LCD screen shaking from the visual sense.

  According to the mobile phone control device and the mechanical image shake control method according to the first embodiment of the present invention, the mobile phone mechanically adjusts the shake, gets on the vehicle, watches the TV from the mobile phone, When making a videophone call, image shake caused by mobile shake can be eliminated or controlled to a minimum.

[Other embodiments]
As described above, the present invention has been described according to the first embodiment. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  As described above, the present invention naturally includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

The typical block block diagram of the mobile telephone control apparatus which concerns on the 1st Embodiment of this invention. The typical block block diagram of the mobile telephone control apparatus which concerns on the modification of the 1st Embodiment of this invention. The flowchart figure which shows the mechanical image shake control method of the mobile telephone control apparatus which concerns on the 1st Embodiment of this invention. The typical block diagram of the LCD axis adjustment motor driver part of the mobile telephone control apparatus which concerns on the 1st Embodiment of this invention. In the mobile phone control device according to the first embodiment of the present invention, an X-axis control plate, a Y-axis control plate, and a Z-axis control plate are arranged on the stage, respectively, and between each plate and the stage. FIG. 6 is a schematic diagram for explaining a configuration for electromagnetically controlling minute displacements ΔX, ΔY, and ΔZ of a distance of 10 mm. (A) A change diagram of amplitudes in the X and Y axis directions when the mobile phone control device is not operated in the mobile phone provided with the mobile phone control device according to the first embodiment of the present invention, and (b) the mobile phone. The change figure of the amplitude of the X-axis direction at the time of operating a control apparatus. FIG. 1A is a diagram showing a change in amplitude in the Z-axis direction when a mobile phone control device is not operated in a mobile phone provided with a mobile phone control device according to a first embodiment of the present invention; FIG. FIG. 6 is a change diagram of the amplitude in the Z-axis direction when the is operated.

Explanation of symbols

10 ... Sensor unit 12 ... Gyro sensor (X, Y, Z)
13. Gyro sensor (X, Y)
14 ... Accelerometer (X, Y)
16 ... Geomagnetic sensor (Z)
18 ... A / D converter 20 ... processor unit 21 ... central processing unit (CPU)
22 ... Baseband unit 23 ... Digital signal processor (DSP)
24 ... Motion controller 30 ... LCD axis adjustment motor driver 32 ... X-axis adjustment motor driver 34 ... Y-axis adjustment motor driver 36 ... Z-axis adjustment motor driver 40 ... Processing data monitor 50 ... Stage 52 ... Rotary table 54 ... X-axis Adjustment motor 56 ... Y-axis adjustment motor 58 ... Z-axis adjustment motor 62 ... X-axis control plate 64 ... Y-axis control plate 66 ... Z-axis control plate 68 ... X-axis control electromagnet 70 ... Y-axis control electromagnet 72 ... Z-axis Control electromagnets Ix, Iy, Iz ... currents ΔX, ΔY, ΔZ ... minute displacements S1 to S7 ... step

Claims (5)

A gyro sensor that measures rotational speed, an acceleration sensor that measures acceleration, and a sensor unit having an A / D converter;
A central processing unit, a baseband unit having a digital signal processor, and a processor unit having a motion controller unit;
A liquid crystal display display axis adjustment motor driver unit having an X axis adjustment motor driver and a Y axis adjustment motor driver, and when there is a relatively fast movement based on the measurement data of the gyro sensor and the acceleration sensor The mobile phone control device, wherein the gyro sensor corrects the acceleration sensor and the acceleration sensor corrects the gyro sensor when there is a relatively slow movement. 2. The mobile phone control device according to claim 1, wherein the sensor unit further includes a geomagnetic sensor, and the liquid crystal display display axis adjustment motor driver unit further includes a Z-axis adjustment motor driver. 3. The mobile phone control device according to claim 1, wherein the gyro sensor detects a two-dimensional or three-dimensional rotational speed. A rotation table having an X-axis adjustment motor, a Y-axis adjustment motor, and a Z-axis adjustment motor; and a stage that is disposed on the rotation table and mounts an LCD screen of a mobile phone;
The X axis adjustment motor driver drives the X axis adjustment motor, the Y axis adjustment motor driver drives the Y axis adjustment motor, and the Z axis adjustment motor driver drives the Z axis adjustment motor. 4. The rotary table according to claim 2, wherein the rotary table moves in the opposite direction with respect to the vibration of the mobile phone with respect to the respective axes of X, Y, and Z. 5. Mobile phone control device. A mechanical image shake control method for a mobile phone control device including a sensor unit, a processor unit, and an LCD axis adjustment motor driver unit,
In the sensor unit, sensing a swing;
Converting analog signals of X, Y, and Z axis swing widths into digital signals by an A / D converter in the sensor unit;
Transmitting the obtained digital signal data to a baseband unit in the processor unit and processing the data;
Transmitting data processed in the baseband unit to a motion controller unit in the processor unit;
The step of converting the data transmitted to the motion controller unit into a pulse step signal for driving the motor and X, Y, Z direction signal data, and outputting to the LCD axis adjustment motor driver unit;
Driving the X-axis adjustment motor, the Y-axis adjustment motor, and the Z-axis adjustment motor by the X-axis adjustment motor driver, the Y-axis adjustment motor driver, and the Z-axis adjustment motor driver in the LCD axis adjustment motor driver section, respectively. A mechanical image shake control method comprising:

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