JP5358656B2 - Portable electronic devices - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a potable electronic apparatus having a pedometer function which prevents large errors, which are caused by vibrations generated by a predetermined function, from occurring in measurement values. <P>SOLUTION: A portable phone 1 includes: an operation part side housing 2; a vibration generating part 99; a three-axle acceleration sensor 100; and a count part 112 which counts user's steps based on the detection value of the three-axle acceleration sensor 100. The portable phone 1 does not change the count number when the vibration generating part 99 vibrates. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a portable electronic device such as a cellular phone.

  In recent years, a mobile phone as a mobile electronic device is equipped with a sensor such as an acceleration sensor to detect the state of the mobile phone. This mobile phone is configured to activate a predetermined application or change control contents in accordance with each state detected by a sensor.

  Here, as a mobile phone having a function using a sensor, a mobile phone having an application program for executing the function of a pedometer that counts the number of steps of a user using acceleration data detected by an acceleration sensor has been proposed. (For example, refer to Patent Document 1).

JP 2005-167758 A

  However, in the mobile phone of Patent Document 1, when vibration is applied to the mobile phone by the vibration function that notifies an incoming call, the acceleration sensor also detects the vibration, so that a large error occurs in the number of steps measured by the pedometer function. There is.

  An object of the present invention is to provide a portable electronic device having a pedometer function in which a large error in a measurement value is suppressed due to vibration caused by a predetermined function.

  The present invention counts the number of steps based on a case, a vibration generation unit that is mounted on the case and vibrates the case, an acceleration detection unit that is mounted on the case, and a detection value of the acceleration detection unit. A portable electronic device that does not change the count when the vibration generator vibrates.

The present invention also includes a housing, and a vibration generating unit that is mounted on the housing and vibrates the housing.
An acceleration detection unit mounted on the housing, a storage unit that preliminarily stores information about a waveform pattern of a change in acceleration value over time, and a pattern of a change in acceleration value over time detected by the acceleration detection unit A detection value waveform pattern that is determined to be the first waveform pattern by the determination unit among the detection value waveform patterns, and a determination unit that compares the detected value waveform pattern and the waveform pattern stored in the storage unit A counting unit that counts the number of first detection value waveform patterns, an estimation unit that estimates the number of first waveform patterns while the vibration generation unit vibrates, and a first estimated by the estimation unit The present invention relates to a portable electronic device comprising: an adding unit that adds the number of waveform patterns to the count number in the counting unit.

  Further, in the portable electronic device, the storage unit stores information on a third waveform pattern that is a waveform pattern of a change over time of an acceleration value in the movement of the housing that is generated only by the vibration generated by the vibration generation unit, The adding unit preferably does not change the count number when the determining unit determines that the detected value waveform pattern is the third waveform pattern.

  In the portable electronic device, the storage unit relates to storing amplitude information and vibration period information in a waveform pattern.

  The present invention also includes a housing, a vibration generation unit that is mounted on the housing and vibrates the housing, an acceleration detection unit that is mounted on the housing, and a timekeeping unit that is mounted on the housing. A storage unit that stores in advance information about a waveform pattern of a change in acceleration value over time, and at least information about a first waveform pattern when the casing is moving in a predetermined manner and the predetermined movement A storage unit that stores in advance information about the second waveform pattern when continuous or intermittent vibration is applied to the vibration generation unit, and a change in the acceleration value detected by the acceleration detection unit over time. A determination that compares the detected value waveform pattern, which is a pattern, with the waveform pattern stored in the storage unit and determines whether the detected value waveform pattern is the first waveform pattern or the second waveform pattern And a count unit that counts the number of first detection value waveform patterns as the detection value waveform pattern determined by the determination unit as the first waveform pattern among the detection value waveform patterns, and the first detection A calculation unit for calculating the number of detections per time in the value waveform pattern, and a second detection value waveform as the detection value waveform pattern determined by the determination unit as the second waveform pattern among the detection value waveform patterns A measurement unit that measures the duration of the pattern duration, and an estimation unit that estimates the number of detections of the first waveform pattern by multiplying the duration measured by the measurement unit by the number of detections per hour calculated by the calculation unit. And an addition unit that adds the number of detections estimated by the estimation unit to the number of counts in the count unit.

  Further, in the portable electronic device, the storage unit stores information on a third waveform pattern that is a waveform pattern of a change over time of an acceleration value in the movement of the housing that is generated only by the vibration generated by the vibration generation unit, The adding unit preferably does not change the count number when the determining unit determines that the detected value waveform pattern is the third waveform pattern.

  In the portable electronic device, the storage unit preferably stores amplitude information and vibration period information in a waveform pattern.

  The present invention also includes a housing, a vibration generation unit that is mounted on the housing and vibrates the housing, an acceleration detection unit that is mounted on the housing, and a timekeeping unit that is mounted on the housing. A storage unit that stores information about a waveform pattern of a change in acceleration value over time, the first threshold value information relating to the vibration period of the waveform pattern; and the second threshold value information relating to the amplitude of the waveform pattern; and the acceleration detection unit The detected value waveform pattern, which is a waveform pattern of the acceleration value detected over time, is a first detected value waveform pattern whose vibration cycle is equal to or greater than the first threshold value and whose amplitude is equal to or greater than the second threshold value. A first determination unit configured to determine whether or not the detected value waveform pattern has a vibration period less than the first threshold value and an amplitude equal to or greater than the second threshold value, and is calculated from the detected value waveform pattern; Virtual waveform A second determination unit that determines whether a turn is a second detection value waveform pattern that is substantially the same as all or part of the first detection value waveform pattern; and the first determination unit that is determined by the first determination unit. A first count unit that counts the number of detection value waveform patterns; a second count unit that counts the number of virtual waveform patterns in the second detection value waveform pattern determined by the second determination unit; The present invention relates to a portable electronic device comprising: an addition unit that adds a count number in a second count unit to a count number in a count unit.

  In the portable electronic device, the detected value waveform pattern has a vibration period less than the first threshold value and an amplitude not less than the second threshold value, and the virtual waveform pattern is the first detected value waveform pattern. A third determination unit that determines whether the waveform is a third detection value waveform pattern that is different from the first detection value waveform pattern, and the addition unit is configured so that the detection value waveform pattern is the third detection value by the third determination unit. When it is determined to be a waveform pattern, it is preferable not to change the count number.

  ADVANTAGE OF THE INVENTION According to this invention, the portable electronic device which has a pedometer function by which it was suppressed that a big error arises in a measured value by the vibration which arises by a predetermined function can be provided.

FIG. 3 is an external perspective view in a state where the mobile phone 1 is opened. FIG. 6 is an exploded perspective view of members built in the operation unit side body 2. FIG. 5 is an exploded perspective view of members built in the display unit side body 3. 3 is a block diagram illustrating a circuit configuration in the mobile phone 1. FIG. It is a graph which shows a time-dependent change of the synthetic acceleration value in a 1st state (walking state). It is a graph which shows a time-dependent change of the synthetic acceleration value in the 2nd state (walking state + vibration by vibration generation part 99). It is a graph which shows the time-dependent change of the synthetic acceleration value in the 3rd state (only the vibration by the vibration generation part 99). It is a flowchart explaining the operation | movement in a pedometer function part. It is a block explaining the circuit configuration in other embodiments.

The best mode for carrying out the present invention will be described below with reference to the drawings.
With reference to FIG. 1, a basic structure of a mobile phone 1 as an electronic device will be described. FIG. 1 shows an external perspective view of the cellular phone 1 in an opened state.

  As shown in FIG. 1, the mobile phone 1 includes an operation unit side body 2 and a display unit side body 3 as a housing. The operation unit side body 2 and the display unit side body 3 are connected so as to be openable and closable via a connecting part 4 having a hinge mechanism. Specifically, the upper end portion of the operation unit side body 2 and the lower end portion of the display unit side body 3 are connected via a connecting portion 4. Thereby, the mobile phone 1 is configured to be able to relatively move the operation unit side body 2 and the display unit side body 3 connected via the hinge mechanism. That is, in the mobile phone 1, the operation unit side body 2 and the display unit side body 3 are opened (open state), and the operation unit side body 2 and the display unit side body 3 are folded. (Closed state). Here, the closed state is a state in which both housings are arranged so as to overlap each other, and the open state is a state in which both housings are arranged so as not to overlap each other.

  The outer surface of the operation unit side body 2 includes a front case 2a and a rear case 2b. The operation unit side body 2 has, on the front case 2a side, an operation key group 11 as input means and a voice input unit 12 as a microphone to which a voice uttered by a user of the mobile phone 1 is input. Configured to be exposed.

  The operation key group 11 includes a function setting operation key 13 for operating various functions such as various settings, a telephone book function, and a mail function, and an input operation key 14 for inputting a telephone number and characters such as mail. And a determination operation key 15 as an operation member for performing determination in various operations, scrolling in the vertical and horizontal directions, and the like. Each key constituting the operation key group 11 has a predetermined function according to the open / closed state of the operation unit side body 2 and the display unit side body 3, various modes, or the type of the activated application. Assigned (key assignment). Then, when the user presses each key, an operation corresponding to the function assigned to each key is executed.

  The voice input unit 12 is disposed on the outer end side opposite to the connection unit 4 side in the longitudinal direction of the operation unit side body 2. That is, the voice input unit 12 is arranged on one outer end side when the mobile phone 1 is in the open state.

  An interface (not shown) for communicating with an external device (for example, a host device) is disposed on one side surface of the operation unit side body 2. A side key to which a predetermined function is assigned and an interface (not shown) through which an external memory is inserted and removed are arranged on the other side surface of the operation unit side body 2. The interface is covered with a cap. Each interface is covered with a cap when not in use.

  The outer surface of the display unit side body 3 includes a front panel 3a, a front case 3b, a rear case 3c (see FIG. 3), and a rear panel 3d (see FIG. 3). The front case 3b in the display unit side body 3 is disposed so as to expose a display unit 21 for displaying various types of information and a voice output unit 22 as a receiver for outputting the voice of the other party of the call. The Here, the display unit 21 includes a liquid crystal panel, a drive circuit that drives the liquid crystal panel, and a light source unit such as a backlight that emits light from the back side of the liquid crystal panel.

  Next, the internal structure of the operation unit side body 2 and the display unit side body 3 will be described with reference to FIGS. 2 and 3. FIG. 2 is an exploded perspective view of members built in the operation unit side body 2. FIG. 3 is an exploded perspective view of members built in the display unit side body 3.

  As shown in FIG. 2, the operation unit side body 2 includes a front case 2a, a key structure 40, a key substrate 50, a case body 60, a reference potential pattern layer 75, and RF (Radio Frequency for cellular phones). ) A circuit board 70 including various electronic components such as modules, an antenna unit 90, a rear case 2b including a battery lid 2c, and a battery 80.

  The front case 2a and the rear case 2b are disposed such that the concave inner surfaces face each other, and are joined so that the outer peripheral edges thereof overlap each other. Further, the key structure 40, the key board 50, the case body 60, the circuit board 70, and the antenna part 90 are built in between the front case 2a and the rear case 2b.

  In the front case 2a, key holes 13a, 14a, and 15a are formed on the inner surface of the front case 2a facing the display unit 21 of the display unit side body 3 in a state in which the cellular phone 1 is folded. From each of the key holes 13a, 14a, 15a, the pressing surface of the function setting operation key member 13b constituting the function setting operation key 13, the pressing surface of the input operation key member 14b constituting the input operation key 14, and the determination operation key 15 The pressing surface of the determination operation key member 15b that constitutes is exposed. By pressing the exposed function setting operation key member 13b, the input operation key member 14b, and the determination operation key member 15b so as to depress, the metal dome described later is provided in each corresponding key switch 51, 52, 53. The apex of (saddle-like shape) is pressed and comes into electrical contact with the switch terminal.

  The key structure unit 40 includes an operation member 40A, a key frame 40B as a reinforcing member, and a key sheet 40C as a sheet member.

  The operation member 40A is composed of a plurality of key operation members. Specifically, it is configured by a function setting operation key member 13b, an input operation key member 14b, and a determination operation key member 15b. Each operation key member constituting the operation member 40A is bonded to the key sheet 40C with a key frame 40B described later interposed therebetween. As described above, the pressing surface of each operation key member bonded to the key sheet 40C is disposed so as to be exposed to the outside from each of the key holes 13a, 14a, 15a.

  The key frame 40B is a metallic plate-like member having a plurality of holes 14c. The key frame 40B is a reinforcing member for preventing adverse effects on the circuit board 70 and the like due to the pressing of the input operation key member 14b. The key frame 40B is a conductive member, and also functions as a member for releasing static electricity from the input operation key member 14b. The plurality of holes 14c formed in the key frame 40B are arranged so that convex portions 14d formed in the key sheet 40C described later are fitted. The input operation key member 14b is bonded to the convex portion 14d.

  The key sheet 40C is a flexible sheet-like member made of silicon rubber. As described above, a plurality of convex portions 14d are formed on the key sheet 40C. The plurality of convex portions 14d are formed on the surface of the key sheet 40C on the side where the key frame 40B is disposed. Each of the plurality of convex portions 14d is formed at a position corresponding to a key switch 52 described later.

  The key board 50 has a plurality of key switches 51, 52, 53 arranged on the key sheet 40C side. The plurality of key switches 51, 52, 53 are arranged at positions corresponding to the respective operation members 40A. The key switches 51, 52 and 53 arranged on the key substrate 50 have a structure having a metal dome of a metal plate which is curved in a bowl shape and is three-dimensionally formed. The metal dome is configured to be electrically connected to a switch terminal formed on an electric circuit (not shown) printed on the surface of the key substrate 50 when the apex of the bowl-shaped shape is pressed. Is done. The key board 50 is obtained by sandwiching wiring between a plurality of insulating layers (insulating films).

  Since the key substrate 50 is placed on the flat plate portion 61 of the case body 60, the pressure and bending due to the pressing of the operation members 40 </ b> A are not easily transmitted to the circuit board 70 disposed below the case body 60.

  The case body 60 is a conductive member having a shape in which one wide surface of a thin rectangular parallelepiped is opened. The case body 60 includes ribs 62 that are formed substantially perpendicular to the opening-side surface of the flat plate portion 61. The rib 62 is formed to be equal to or sufficiently higher than the height of the tallest electronic component among the various electronic components mounted on the circuit board 70. The rib 62 is formed so as to correspond to the reference potential pattern layer 75 constituting the reference potential portion on the periphery and inside of the flat plate portion 61. Specifically, the rib 62 is formed so as to be disposed on the reference potential pattern layer 75 in a state where the case body 60 is placed on the circuit board 70. Note that the case body 60 may be formed of a metal, a skeleton formed of a resin, and a conductor film formed on the surface thereof.

  The case body 60 is electrically connected to the reference potential pattern layer 75 by contacting the bottom surface of the rib with the reference potential pattern layer 75. The case body 60 is electrically connected to the reference potential pattern layer 75 and has the same potential as the reference potential pattern layer 75. That is, the case body 60 functions as a shield case. The case body 60 serves as a shield case to suppress external noise such as high frequency from acting on various electronic components disposed on the circuit board 70, and to emit from an RF (Radio Frequency) circuit, a CPU circuit, a power supply circuit, and the like. This prevents the generated noise from acting on other electronic components and a receiving circuit connected to the antenna. Specifically, the bottom surface of the rib 62 in the case body 60 is disposed on the reference potential pattern layer 75, so that each circuit described later is surrounded by the rib 62 and covered with a part of the flat plate portion 61. The rib 62 functions as a partition wall in each circuit, and shields each circuit together with a part of the flat plate portion 61.

  Various electronic components and circuits including a CPU 45 (not shown) including a signal processing unit that processes a signal transmitted and received by the antenna unit 90 and a memory 44 are disposed on the circuit board 70. Various electronic components form a plurality of circuit blocks by a predetermined combination. For example, various circuit blocks including an RF (Radio Frequency) circuit, a power supply circuit, and the like are formed.

  In addition to the various electronic components described above, a reference potential pattern layer 75 constituting a reference potential portion is formed on the first surface 70a of the circuit board 70 on the case body 60 side. The reference potential pattern layer 75 is formed so as to partition each circuit block described above. The reference potential pattern layer 75 is formed by printing a conductive member in a predetermined pattern on the surface of the first surface 70a of the circuit board 70.

  Here, the circuit board 70 is mounted with a three-axis acceleration sensor 100 as an acceleration detection unit constituting a pedometer function unit described later. The triaxial acceleration sensor 100 detects the acceleration in each of the three axial directions of the X axis, the Y axis, and the Z axis in the movement of the operation unit side body 2 (mobile phone 1). The triaxial acceleration sensor 100 is, for example, an acceleration (change) caused by walking of a user who has the mobile phone 1 or an acceleration (change) generated in the operation unit side body 2 (mobile phone 1) by a vibration generating unit 99 described later. Is detected. The triaxial acceleration sensor 100 outputs detected acceleration value information to the CPU 45. The processing content of the acceleration value detected by the triaxial acceleration sensor 100 will be described in detail later.

  The antenna unit 90 is configured by arranging an antenna element having a predetermined shape on a base. The antenna unit 90 is disposed on the end side opposite to the connecting unit 4 side in the mobile phone 1. The antenna element of the antenna unit 90 is formed of a strip-shaped sheet metal. The antenna unit 90 is supplied with power from the circuit board 70 via a power supply terminal (not shown). As a result, the antenna element is fed from the circuit board 70 via the feed terminal and is connected to the RF module and the like of the circuit board 70.

  A detachable battery lid 2c is provided on one end side (in FIG. 2) of the rear case 2b. After the battery 80 is stored from the outside of the rear case 2b, the battery case 2b is attached to the rear case 2b. In addition, a voice input unit 12 (not shown) that inputs a user's voice is accommodated at one end of the rear case 2b.

  A vibration generating unit 99 is disposed on the connecting part 4 side in the rear case 2b. The vibration generating unit 99 includes a motor (not shown) and an eccentric weight attached to the output unit of the motor. The vibration generating unit 99 is connected to the circuit board 70 by wiring (not shown). The vibration generating unit 99 generates predetermined vibrations on the operation unit side body 2 (the mobile phone 1) based on an instruction from the CPU 45 mounted on the circuit board 70. For example, the vibration generating unit 99 causes the operation unit side body 2 (the mobile phone 1) to vibrate in order to notify the user of an incoming call when an incoming call is received. Here, the vibration generating unit 99 applies vibration to the operation unit side body 2 (the mobile phone 1) in the above-described walking state (second pattern, second waveform pattern), and the operation unit side body in the stationary state. 2 (cell phone 1) is vibrated (third pattern, third waveform pattern).

  As shown in FIG. 3, the display unit side body 3 includes a front panel 3a, an audio output unit 22, a front case 3b, an audio output unit 22, a display unit 21, and a print to which the display unit 21 is connected. A substrate 85, a rear case 3c, and a rear panel 3d are provided.

  The display unit side body 3 includes a front panel 3a, a front case 3b, a display unit 21, a printed circuit board 85, a rear case 3c, and a rear panel 3d that are stacked. Specifically, the front case 3b and the rear case 3c are arranged so that the inner surfaces of the concave shapes face each other, and are joined so that the outer peripheral edges thereof overlap each other.

  A printed circuit board 85 to which the display unit 21 is connected is sandwiched between the front case 3b and the rear case 3c. A speaker connected to an amplifier (not shown) is connected to the printed board 85.

Next, the circuit configuration of the mobile phone 1 will be described with reference to FIGS.
FIG. 4 is a block diagram illustrating a circuit configuration in the mobile phone 1. FIG. 5 is a graph showing the change over time of the combined acceleration value in the first state (walking state). FIG. 6 is a graph showing the temporal change in the combined acceleration value in the second state (walking state + vibration by the vibration generating unit 99). FIG. 7 is a graph showing the change over time in the combined acceleration value in the third state (only vibration by the vibration generating unit 99).

  As shown in FIG. 4, the communication unit 200, the vibration generating unit 99, the three-axis acceleration sensor 100, the time measuring unit 101, the vibration control unit 110 as a functional unit included in the CPU 45, the determination unit 111, and the count Unit 112, calculation unit 113, measurement unit 114, estimation unit 115, addition unit 116, and memory 44. Here, the mobile phone 1 has a pedometer function unit for performing a pedometer function. The pedometer function unit includes a triaxial acceleration sensor 100, a timer unit 101, a determination unit 111 as a function unit included in the CPU 45, a count unit 112, a calculation unit 113, a measurement unit 114, and an estimation unit 115. , And an adder 116 and a memory 44.

  The communication unit 200 includes an antenna unit 90 that communicates with an external device in a predetermined use frequency band, and a communication processing unit 201 that performs signal processing such as modulation processing or demodulation processing.

  The antenna unit 90 communicates with an external device (base station) in a predetermined use frequency band (for example, 800 MHz). In the present embodiment, the predetermined use frequency band is 800 MHz, but other frequency bands may be used. Further, the antenna unit 90 may have a so-called dual band compatible type that can support a second used frequency band (for example, 2 GHz) in addition to a predetermined used frequency band (first used frequency band). Moreover, it may be configured by a multi-band compatible type that can also correspond to the third use frequency band.

  The communication processing unit 201 demodulates the signal received by the antenna unit 90 and supplies the demodulated signal to a processing unit (not shown). The communication processing unit 201 also modulates the signal supplied from the processing unit and performs an external device (base station) via the antenna unit 90. ).

  As described above, the vibration generating unit 99 includes a motor (not shown) and an eccentric weight attached to the output unit of the motor. The vibration generating unit 99 is connected to the circuit board 70 by wiring (not shown). The vibration generating unit 99 generates a predetermined vibration in the operation unit side body 2 (the mobile phone 1) based on an instruction from the vibration control unit 110 as a functional unit included in the CPU 45 mounted on the circuit board 70. . For example, the vibration generating unit 99 causes the operation unit side body 2 (the mobile phone 1) to vibrate in order to notify the user of an incoming call when an incoming call is received. Here, the vibration generating unit 99 applies vibration to the operation unit side body 2 (the mobile phone 1) in the above-described walking state (second pattern, second waveform pattern), and the operation unit side body in the stationary state. 2 (cell phone 1) is vibrated (third pattern, third waveform pattern).

  The triaxial acceleration sensor 100 detects the acceleration in the triaxial directions (X, Y, Z) in the operation unit side body 2 (mobile phone 1). The acceleration information from the three-axis acceleration sensor 100 is output to the determination unit 111.

  The timer unit 101 has a timer function. The timer unit 101 is configured to be able to output time information including the current time. The time information output from the time measuring unit 101 is configured to be output to a calculating unit 113 and a measuring unit 114 described later.

  The memory 44 stores various application programs such as an application program for operating the pedometer function. In addition, the memory 44 stores in advance information about a waveform pattern of changes in acceleration values over time. Specifically, information on the first waveform pattern when at least the operation unit side body 2 (mobile phone 1) is moved by the user's walking, and continuous or intermittent movement by the vibration generating unit 99 in the movement by walking. Information about the second waveform pattern when a typical vibration is applied and information about the third waveform pattern when only a continuous or intermittent vibration is applied by the vibration generating unit 99 are stored in advance.

  In the present embodiment, the memory 44 stores information on the waveform pattern of the temporal change in the combined acceleration value obtained by combining the acceleration values in the three-axis directions. The memory 44 stores amplitude information and vibration period information in the waveform pattern. Here, the memory 44 stores the waveform pattern for each period. When the acceleration value is (X, Y, Z), the combined acceleration value (G) is expressed by the following equation (Equation 1).

  The vibration control unit 110 instructs the vibration generation unit 99 to generate vibration. For example, as described above, when the communication unit 200 receives an incoming call from an external device, the vibration control unit 110 drives the vibration generation unit 99 to cause the vibration generation unit 99 to drive the vibration generation unit 99 in order to notify the user of the incoming call (vibration is reduced). Give instructions) Here, the vibration control unit 110 gives an instruction to the vibration generation unit 99 in response to an alarm function, a mail function, or the like in addition to the incoming call.

  The determination unit 111 determines the state of the mobile phone 1 based on the acceleration information from the triaxial acceleration sensor 100. The determination unit 111 determines the state of the mobile phone 1 based on a detected value waveform pattern that is a waveform pattern of a change over time of a combined acceleration value obtained by combining the acceleration values in the three-axis directions from the three-axis acceleration sensor 100. .

  Specifically, the determination unit 111 obtains a detected value waveform pattern that is a pattern of change over time in the combined acceleration value of the acceleration value detected by the triaxial acceleration sensor 100 and a waveform pattern stored in the memory 44. Compare. And the determination part 111 is the 1st waveform pattern of the 1st state whose detection value waveform pattern is a movement of a walking state, or the 2nd movement which is the state to which the vibration by the vibration generation part 99 was added in the walking state. Whether it is the second waveform pattern of the state or the third waveform pattern of the third state, which is a movement in a state where only the vibration by the vibration generating unit 99 is applied, is determined.

  The determination unit 111 may compare the first waveform pattern, the second waveform pattern, or the third waveform pattern and the measured value waveform pattern with each waveform, may compare with the amplitude and the vibration period, and these You may compare by the combination of. The determination unit 111 sets the first waveform pattern, the second waveform pattern, or the third waveform pattern and the measured value waveform pattern based on the first waveform pattern, the second waveform pattern, or the third waveform pattern. It is also possible to make a comparison via a threshold value of.

  For example, the determination unit 111 determines whether the detected value waveform pattern is a first detected value waveform pattern whose vibration cycle is equal to or greater than the first threshold value AX and whose amplitude is equal to or greater than the second threshold value BX. The first threshold value AX and the second threshold value BX are values set based on the first waveform pattern. The first threshold AX and the second threshold BX can be stored in advance in the memory 44, for example. Here, the second threshold BX can be set to, for example, 0.4 G (± 0.2 G with respect to the stationary state), but is not limited thereto and can be set as appropriate.

  Specifically, as illustrated in FIG. 5, the determination unit 111 determines that the waveform pattern K of the combined acceleration value (G) has a vibration period A1 that is greater than or equal to the first threshold value AX and an amplitude B1 that is equal to the second threshold value BX. It is determined whether the first detected value waveform pattern K1 is as described above. The determination unit 111 determines whether the detection value waveform pattern is a first detection value waveform pattern that is a waveform pattern in a first state that is movement in a walking state.

  In addition, for example, the determination unit 111 can connect the vertices of the waveform patterns adjacent to each other while the detected value waveform pattern has a vibration period less than the first threshold value AX and an amplitude equal to or greater than the second threshold value BX. It is determined whether the virtual waveform pattern is a second detection value waveform pattern having substantially the same shape as all or part of the first detection value waveform pattern.

  Specifically, as illustrated in FIG. 6, the determination unit 111 determines that the waveform pattern K of the combined acceleration value (G) has a vibration period A2 that is less than the first threshold value AX and an amplitude B2 that is the second threshold value BX. Whether or not the virtual waveform pattern KA formed by connecting the vertices of the waveform patterns adjacent to each other is the second detection value waveform pattern K2 having substantially the same shape as all or part of the first detection value waveform pattern K1. Determine.

  Further, for example, the determination unit 111 determines that the detected value waveform pattern has a vibration period less than the first threshold value AX and an amplitude greater than or equal to the second threshold value BX, and the virtual waveform pattern is the first detected value waveform pattern. Determines whether the third detection value waveform pattern has a different shape.

  Specifically, as illustrated in FIG. 7, the determination unit 111 determines that the waveform pattern K of the combined acceleration value (G) has a vibration period A3 that is less than the first threshold AX and an amplitude B3 that is the second threshold BX. In addition, it is determined whether the virtual waveform pattern KA is a third detection value waveform pattern that is different from the first detection value waveform pattern K.

  The count unit 112 counts the number of first detection value waveform patterns as the detection value waveform pattern determined by the determination unit 111 as the first waveform pattern among the detection value waveform patterns. For example, when counting the number of first detection value waveform patterns in a continuous waveform pattern, the counting unit 112 counts the number of first detection value waveform patterns by counting the number of maximum points (minimum points). You can also count. Here, the number of first detection value waveform patterns is counted as the number of steps of the user.

  The calculation unit 113 calculates the number of detections per time in the first detection value waveform pattern. The number of detections per time in the first detection value waveform pattern calculated by the calculation unit 113 is output to the estimation unit 115 described later.

  The measurement unit 114 measures the duration of the second detection value waveform pattern as the detection value waveform pattern that is determined to be the second waveform pattern by the determination unit 111 among the detection value waveform patterns. The measuring unit 114 uses the time information from the time measuring unit 101 to measure the duration for which the second detected value waveform pattern continues. Here, in the present embodiment, the duration T2a of the second detected value waveform pattern K2 in FIG. 6 is measured as the duration, but the duration T2b (T2a + T1a + T2a) in a period in which vibration is intermittently applied. May be the duration.

  The estimation unit 115 multiplies the duration measured by the measurement unit 114 by the number of detections per hour calculated by the calculation unit 113 to calculate the estimated number of first detection value waveform patterns. The number of detections per time used in the estimation unit 115 may be an average number of detections at all times determined as the first detection value waveform pattern since the user started walking, and the second detection value The average number of detections immediately before the waveform pattern is generated may be used.

The addition unit 116 adds the number of detections of the first detection value waveform pattern calculated (estimated) by the estimation unit 115 to the count number in the counting unit 112. Here, when the detected value waveform pattern is the third detected value waveform pattern in the third state that is moved only by the vibration from the vibration generating unit 99, the adding unit 116 does not change the count number (does not add).
The number obtained by adding the predetermined number of detections by the adding unit 116 is the number of first detection value waveform patterns in which the number of detections in the second state is complemented. In other words, the number to which the predetermined detection value is added is the number of steps of the user in which the number of steps in the second state is estimated and complemented.

Next, the operation of the pedometer function unit in the present embodiment will be described with reference to FIG.
FIG. 8 is a flowchart for explaining the operation in the pedometer function unit.
First, the step count is started by a predetermined operation (ST1). Thereby, the triaxial acceleration sensor 100 measures the acceleration value in each of the triaxial directions in the operation unit side body 2 (mobile phone 1) (ST2).

  Next, the determination unit 111 compares the first waveform pattern, the second waveform pattern, and the third waveform pattern stored in advance in the memory 44 with the detected value waveform pattern. Then, the determination unit 111 determines whether the detected value waveform pattern is the first detected value waveform pattern having the same waveform pattern as the first waveform pattern (A) or the second detected value waveform pattern having the same waveform pattern as the second waveform pattern. Whether there is (B) or a third detected value waveform pattern having the same waveform pattern as the third waveform pattern (C) is determined (ST3). Here, in order for the determination unit 111 to determine the same waveform, the detected value waveform pattern does not have to be exactly the same as the first waveform pattern, the second waveform pattern, or the third waveform pattern, and the shape, amplitude, vibration It can be regarded as the same type from the period and shape.

Subsequently, when the determination unit 111 determines that the waveform is the first detection value waveform pattern (A), the count unit 112 counts the number of detections of the first detection value waveform pattern (ST4).
Then, the adding unit 116 adds the number of detections counted by the counting unit 112 to the number of counts counted so far (ST5).

Subsequently, when it is determined by the determination unit 111 that the waveform is the second detection value waveform pattern (B), the measurement unit 114 measures the duration for which the second detection value waveform pattern continues (ST6).
In addition, the estimation unit 115 multiplies the number of detections per time in the first detection value waveform pattern calculated by the calculation unit 113 by the duration measured by the measurement unit 114 to obtain the first detection value waveform pattern in the duration. The number of detections is calculated (estimated) (ST7).
Then, adding section 116 adds the estimated number of detections estimated by estimating section 115 to the number of counts counted so far (ST8).

  Subsequently, when the determination unit 111 determines that the waveform is the third detection value waveform pattern (C), the addition unit 116 does not change the step count data that is the count number counted so far (ST9).

  As described above, the addition unit 116 adds the number of detections or the estimated number of detections to the number of counts so far, and acquires (accumulates) step count data (ST10).

  Then, when the step count is terminated by a predetermined operation, the step count is terminated (ST11, YES), and when the step count is not terminated, the step count is continued (ST11, NO).

  According to the present embodiment, it is possible to provide the mobile phone 1 having a pedometer function in which a large error is suppressed in the measurement value due to the vibration generated by the vibration generating unit 99.

  Further, according to the present embodiment, in the second state where the vibration is applied by the vibration generating unit 99 when the user is in the walking state, the estimated number of steps is based on the average number of steps detected in the first state that is the walking state. Since the measurement values are complemented, the mobile phone 1 having a highly accurate pedometer function can be provided.

  As mentioned above, although preferred embodiment was described, this invention can be implemented with a various form, without being limited to embodiment mentioned above. For example, in the present embodiment, the mobile phone 1 is described as a mobile electronic device. However, the present invention is not limited to this, but is not limited to this, but a PHS (registered trademark), a personal digital assistant (PDA), a portable navigation device, a notebook. A personal computer etc. may be sufficient.

  In the present embodiment, the cellular phone 1 that can be folded by the connecting portion 4 is described. However, the present invention is not limited to this, and the operation unit side body 2 and the display unit side body 3 are overlapped. One of the casings is slid in one direction, or one of the casings is rotated about an axis along the direction in which the operation unit side casing 2 and the display unit side casing 3 overlap. A rotating (turn) type, or a type (straight type) in which the operation unit side body 2 and the display unit side body 3 are arranged in one housing and do not have a connecting portion may be used. The mobile phone 1 may be a so-called biaxial hinge type that can be opened and closed and rotated.

  In the present embodiment, the mobile phone 1 supplements the measurement value of the number of steps by estimating the number of detections of the first detection value waveform pattern in the duration of the second detection value waveform pattern by the estimation unit 115. However, the present invention is not limited to this. For example, the number of detected virtual waveform patterns described above may be detected, and the measurement value of the number of steps may be supplemented by the detected number. Hereinafter, an embodiment in this case will be described with reference to FIG. Here, since the overall configuration is the same as that of the above-described embodiment, the differences will be mainly described. FIG. 9 is a block diagram illustrating a circuit configuration according to another embodiment.

  As shown in FIG. 9, the mobile phone 1 </ b> A according to another embodiment includes a communication unit 200, a vibration generation unit 99, a triaxial acceleration sensor 100, a time measuring unit 101, and vibration control as a functional unit included in the CPU 45. Unit 110, first determination unit 111a, second determination unit 111b, third determination unit 111c, first count unit 112a, second count unit 112b, first addition unit 116, memory 44, Is provided.

  The first determination unit 111a has a detected value waveform pattern, which is a waveform pattern of the acceleration value detected by the triaxial acceleration sensor 100, with a vibration period equal to or greater than the first threshold value AX and an amplitude of the first determination unit 111a. It is determined whether the first detected value waveform pattern is equal to or greater than two threshold values BX.

  The second determination unit 111b has a virtual value in which the detected value waveform pattern has a vibration period less than the first threshold value AX and an amplitude equal to or greater than the second threshold value BX, and connects the vertices of the adjacent waveform patterns. It is determined whether the waveform pattern is a second detection value waveform pattern that is substantially the same as all or part of the first detection value waveform pattern. Note that a sum average value of the maximum value (vertex) of the waveform pattern and the minimum value adjacent (continuous) to this is calculated, and the virtual waveform pattern formed by connecting the sum average values is replaced with the virtual waveform pattern. It may be used.

  The third determination unit 111c has a detection value waveform pattern whose vibration cycle is less than the first threshold value AX and whose amplitude is greater than or equal to the second threshold value BX, and any one of the virtual waveform patterns is the first detection value waveform. It is determined whether the third detection value waveform pattern has a shape different from the pattern.

The first count unit 112a counts the number of first detection value waveform patterns determined by the first determination unit 111a.
The second count unit 112b counts the number of virtual waveform patterns in the second detected value waveform pattern determined by the second determination unit 111b.

  Then, the addition unit 116 adds the count number of the virtual waveform pattern in the second count unit 112b to the count number of the first detection value waveform pattern in the first count unit 112a. In addition, when the third determination unit 111c determines that the detection value waveform pattern is the third detection value waveform pattern, the addition unit 116 does not change the count number.

  According to the other embodiments described above, the step count measurement with high accuracy can be performed by complementing the measurement value of the step count. Further, according to the other embodiments described above, the same effects as those in the above-described embodiments can be obtained.

DESCRIPTION OF SYMBOLS 1 Mobile phone 2 Operation part side housing | casing 3 Display part side housing | casing 44 Memory 45 CPU
99 Vibration generator 100 Triaxial acceleration sensor 101 Timekeeping unit 111 Judgment unit 112 Count unit 113 Calculation unit 114 Measurement unit 115 Estimation unit 116 Addition unit

Claims (3)

A housing,
A vibration generator mounted on the housing and vibrating the housing;
An acceleration detector mounted on the housing;
A counting unit that counts the number of steps based on the detection value of the acceleration detecting unit;
An estimation unit that estimates the number of steps while the vibration generation unit is vibrating , from an envelope in an acceleration value detection pattern in which vibration caused by human walking and vibration of the vibration generation unit are combined ,
An addition unit for adding the number of steps estimated by the estimation unit,
A portable electronic device in which the count number is not changed when the vibration generating unit is vibrating. A storage unit and a determination unit;
The storage unit stores information about a third waveform pattern that is a waveform pattern of a change over time of an acceleration value in the movement of the housing that is generated only by the vibration generated by the vibration generation unit;
2. The portable electronic device according to claim 1, wherein, when the determination unit determines that the detection value waveform pattern of the acceleration detection unit is the third waveform pattern, the addition unit does not change the count number.   The portable electronic device according to claim 2, wherein the storage unit stores amplitude information and vibration period information in a waveform pattern.

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