JP2012249330A - Processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processing apparatus that enables a user to start talking without performing a call answering operation.SOLUTION: A portable remote terminal 10 includes: a vibrator 26 which starts an operation of imparting prescribed vibration to the terminal in response to an incoming call event; a call processing circuit 14 which starts call processing in response to at least a call answering operation; an acceleration sensor 28 which repetitively detects the acceleration of the terminal; and a CPU 22. The CPU 22 repetitively computes the quantity of vibration of the terminal caused by the vibrator 26 on the basis of the value detected by the acceleration sensor 28, and determines that the terminal is gripped with a hand on the basis of change in the computed value. The CPU further starts call processing without waiting a call answering operation by controlling the call processing circuit 14 when the CPU determines that the terminal is gripped with a hand.

Description

  The present invention relates to a processing device, and more particularly to a processing device that executes processing according to an operation, for example.

  A portable terminal device which is an example of this type of device is disclosed in Patent Document 1. In this background art, an off-hook button is operated to answer an incoming call. When the button operation is difficult, the user can respond to the incoming call by the acceleration detection signal from the shock sensor by grasping and swinging down the apparatus main body.

JP-A-9-261299 [H04M 1/00, H04Q 7/32, H04M 1/02]

  As described above, in the background art, an incoming call can be answered without performing a button operation, but another incoming call operation of swinging down the apparatus main body is necessary.

  Therefore, the main object of the present invention is to provide a novel processing apparatus.

  Another object of the present invention is to provide a processing apparatus capable of improving convenience at the start of processing.

  The present invention employs the following configuration in order to solve the above problems. Note that reference numerals in parentheses, supplementary explanations, and the like indicate correspondence with embodiments to be described later in order to help understanding of the present invention, and do not limit the present invention.

The first invention is a processing device that executes a call process according to an incoming call operation, and is provided with vibration applying means and vibration applying means for applying a predetermined vibration to the processing device itself according to an incoming call event. Calculation means for calculating the vibration amount of the processing apparatus itself, determination means for determining that the processing apparatus itself is gripped by a hand based on a change in a calculated value by the calculation means, and the processing apparatus itself by the determination means And a start control means for starting the call processing without waiting for the incoming call operation when it is determined that the call is held.
In the first invention, the processing device (10) executes a call process corresponding to an incoming call operation while being held by a normal hand. A predetermined vibration is applied to the processing apparatus by the vibration applying means (26), and the vibration amount of the processing apparatus itself due to this is calculated by the calculating means (28, S31 to S37).

  For example, when a processing device that is vibrating on a desk or in a bag is gripped by a hand, a part of the vibration is absorbed by the hand or the body, so that the calculated value by the calculating means decreases. The determination means (S51 to S69) determines that the processing apparatus itself is gripped by hand based on such a change in the calculated value. When it is determined by the determination means that the processing apparatus itself has been held by hand, the processing apparatus starts a call process under the control of the start control means (S71) without waiting for an incoming call operation.

  According to the first invention, when there is an incoming call event, the processing device starts the call processing when it is grasped by the hand, so that the user does not need to perform any special operation other than grasping by the hand. Convenience when starting call processing is improved.

  In the second invention, the calculated value (V0) by the calculating means at the time of starting the operation of the vibration applying means is held by the holding means (S53). Then, the discriminating means (S61) discriminates whether or not the reduction range of the calculated value by the calculating means from the holding value by the holding means, that is, the value obtained by subtracting the current calculated value from the holding value exceeds the threshold value (Vth1). The The judging means judges that the hand is grasped when the judgment result of the judging means changes from a negative result to a positive result.

  According to the second aspect of the invention, it is determined that the object has been gripped when the amount of decrease in the vibration amount exceeds the threshold value, so that an accurate determination can be easily made.

  In the preferred embodiment, the threshold value is a value (k1 * V0) obtained by multiplying the value held by the holding means by the coefficient (k1), and more preferably, the coefficient is changed by the input means (20) provided in the processing device. It is a possible variable. In other embodiments, the threshold is a constant.

  In another embodiment, the determination unit determines that the processing device is held by a hand when the value calculated by the calculation unit itself falls below a threshold value.

  A third aspect of the invention is a processing device according to the first aspect of the invention, wherein the judging means is a first holding means for holding a calculated value by the calculating means at the time of starting the operation of the vibration applying means, and a calculated value by the calculating means. First discriminating means for discriminating whether or not the decrease from the holding value of the first holding means exceeds the first threshold, the discrimination result by the first discriminating means has changed from a negative result to a positive result The variation range of the calculated value obtained by the calculating means at the second time point after the first time from the second holding means for holding the calculated value by the calculating means at the first time point with respect to the held value by the second holding means at the second time point. A second discriminating unit that discriminates whether or not the second threshold value has been exceeded; if the discrimination result of the second discriminating unit is negative, it is judged that the gripping has not been carried out yet, while the discrimination result of the second discriminating unit is positive If it ’s right, It is determined that.

  In the third invention, the calculated value (V0) by the calculating means at the time when the operation of the vibration applying means starts is held by the first holding means (S53). Then, the first discriminating means determines whether or not the reduction range of the calculated value by the calculating means from the holding value by the first holding means, that is, the value obtained by subtracting the current calculated value from the holding value exceeds the first threshold value (Vth1). This is determined by (S61). Furthermore, the calculated value (V1) by the calculating means at the first time point when the determination result by the first determining means has changed from a negative result to a positive result is held by the second holding means (S59). Then, whether or not the fluctuation range of the calculated value obtained by the calculating means at the second time point after the first time point with respect to the held value by the second holding means is less than the second threshold value (Vth2) is determined by the second determining means. This is determined by (S69). The determination means determines that it is not gripped yet if the determination result of the second determination means is negative, and determines that it is gripped at the first time point if positive.

  According to the third aspect of the present invention, it is only determined that there is a possibility that the vibration is decreased at the first time point when the amount of decrease in the vibration amount exceeds the first threshold, and the vibration amount at the first time point and a predetermined time later Since it is determined that the grip is actually gripped only after the fluctuation range between the vibration amount at the second time point falls below the second threshold value, even if the vibration amount may be instantaneously reduced due to a collision or the like, This can be accurately judged without being confused with the reduction by gripping.

  In a preferred embodiment, the first threshold value is a value (k1 * V0) obtained by multiplying the holding value by the first holding means by the first coefficient (k1), and the second threshold value is the holding value by the second holding means. Is multiplied by the second coefficient (k2) (k2 * V1). More preferably, at least one of the first coefficient and the second coefficient is a variable that can be changed by the input means (20) provided in the processing device. is there. In other embodiments, the first threshold value and the second threshold value are each constant. One of the first threshold and the second threshold may be a variable and the other may be a constant.

  In another embodiment, the first determining means determines whether or not the calculated value itself by the calculating means is below the first threshold value, and the second determining means is the calculated value by the calculating means at the second time point itself. Is determined to be less than the second threshold. Note that the determination as to whether or not the calculated value itself falls below the threshold value may be performed only by at least one of the first determination unit and the second determination unit.

  A fourth invention is a processing device according to any one of the first to third inventions, wherein the operation of the vibration applying means is intermittent, and the operation of the vibration applying means is stopped for each of the calculating means. The apparatus further includes a pause unit that pauses over the stop period.

  In the fourth invention, the operation of the vibration applying means is intermittent, and the pause means (S30) pauses the calculation means over each stop period during which the operation of the vibration applying means is stopped. As a result, the calculated value does not change, and the other means are substantially in a rest state.

  According to the fourth invention, it is possible to make an accurate determination even if the vibration is intermittent, and the load on each means is reduced.

  According to a fifth aspect of the present invention, there is provided vibration imparting means for imparting predetermined vibration to the processing apparatus itself in response to an incoming call event, and the CPU of the processing apparatus for executing call processing according to the incoming call operation is provided with vibration imparting means. Calculating means for calculating the vibration amount of the processing apparatus itself provided by the processing apparatus, determination means for determining that the processing apparatus itself is gripped by a hand based on a change in a calculated value by the calculation means, and the processing apparatus by the determination means This is a control program that functions as a start control unit that starts a call process without waiting for an incoming call operation when it is determined that the user has grasped the hand.

  According to the fifth aspect, when there is an incoming call event, the mobile terminal starts the call processing when it is grasped by the hand, so that the user needs to perform a special operation except for grasping by the hand. Therefore, the convenience when starting the call processing is improved.

  According to the present invention, the convenience at the start of processing can be improved.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

It is a block diagram which shows the structure of one Example of this invention. It is a graph which shows the time change of the vibration amount in an Example. It is a memory map figure which shows the structure of the main memory applied to an Example. It is a flowchart which shows a part of CPU operation | movement applied to an Example. It is a flowchart which shows another part of CPU operation | movement applied to an Example. It is a flowchart which shows a part of other CPU operation | movement applied to an Example. FIG. 10 is a flowchart showing yet another portion of the CPU operation applied to the embodiment. (A) is an illustration figure which shows each site | part and each direction of a terminal main body applied to an Example thru | or a modification, (B) is the value of the acceleration measured in each site | part of (A), and these measured values (C) is a chart showing acceleration values in each direction calculated from the measured values of (B) and vibration amount values further calculated from these calculated values. is there. It is a graph which shows the time change of the vibration amount in the 1st modification of an Example. It is a flowchart which shows a part of CPU operation | movement applied to a 1st modification. It is a flowchart which shows a part of CPU operation | movement applied to the 2nd modification of an Example.

  Referring to FIG. 1, mobile terminal 10 according to an embodiment of the present invention includes a call processing circuit 14. When a call operation is performed by the key input device 20, the CPU 22 controls the call processing circuit 14 to output a call signal. The output call signal is emitted from the antenna 12 and transmitted to the telephone of the other party via a mobile communication network (not shown). In response, the telephone starts ringing using a ring tone. When the other party performs an incoming call operation, the CPU 22 starts a call process.

  When a call termination operation is performed by the key input device 20 before the call starts, the CPU 22 controls the call processing circuit 14 to transmit a call termination signal to the telephone of the other party. In response, the telephone stops the calling operation. When a call termination operation is performed by the key input device 20 after the call is started, the CPU 22 controls the call processing circuit 14 to transmit a call termination signal to the call partner, and ends the call processing.

  When a call signal from a call partner is captured by the antenna 12, the call processing circuit 14 notifies the CPU 22 of an incoming call, and accordingly the CPU 22 starts calling by a ring tone or vibration. In this embodiment, the manner mode can be set / released by the key input device 20, and when the manner mode is released, the calling is performed by outputting a ring tone from the speaker 18, and the manner mode is set. If this is the case, the vibrator 26 is vibrated. The call processing starts when an incoming call operation is performed by the key input device 20 when the manner mode is canceled, and starts when the user holds the mobile terminal 10 when the manner mode is set. Is done. The call start process in the manner mode will be described later.

If a call termination signal is received from the other party before the call starts, the CPU 22 stops the calling operation. When a call termination signal is received from the call partner after the call starts, the CPU 22 ends the call process.
Call processing is performed as follows. The modulated voice signal transmitted from the other party is captured by the antenna 12, and the captured modulated voice signal is demodulated by the call processing circuit 14. The received voice signal thus obtained is output from the speaker 18. The transmitted voice signal captured by the microphone 16 is modulated by the call processing circuit 14, and the modulated voice signal generated thereby is transmitted to the other party through the antenna 12.

The call start timing in the manner mode is determined as follows. The mobile terminal 10 further includes an acceleration sensor 28. The acceleration sensor 28 repeatedly detects (samples) the acceleration of the mobile terminal 10 itself (enclosure) due to the vibration of the vibrator 26 described above (for example, in a 1/100 second cycle), and outputs acceleration data indicating the detection result to the CPU 22. To do. The CPU 22 repeatedly calculates the vibration amount of the mobile terminal 10 itself based on the acceleration data (for example, with a 1/10 second period), and monitors the change in the calculation result. The call start timing is determined based on a change in the calculation result, that is, a change in the vibration amount of the mobile terminal 10 itself, for example, based on whether or not the decrease amount of the vibration amount exceeds a threshold value.

  In general, the portable terminal 10 is placed on a desk or placed in a bag or a pocket of clothes when waiting, and is held by a user's hand for the first time during a call. In a state where the portable terminal 10 is simply placed on a desk or in a bag (hereinafter, “non-gripping state”), the casing of the portable terminal 10 is in contact with a support body such as a desk or a bag by its own weight. Not too much.

  On the other hand, in a state where the mobile terminal 10 is held by a hand (hereinafter referred to as “gripping state”), in other words, in a state where the mobile terminal 10 is held in the user's hand, the casing of the mobile terminal 10 The gripping force makes close contact with the palm, and the vibration of the vibrator 26 is efficiently propagated from the casing of the portable terminal 10 to the human body through the palm.

  Since the human body has a much larger mass and higher flexibility than the mobile terminal 10, a part of the vibration of the vibrator 26 is absorbed by the human body. On the other hand, since the desk has a large mass but lacks flexibility, vibrations are hardly absorbed, but rather increase due to resonance. On the other hand, heels and clothes are flexible but have a small mass, so the amount of vibration absorption does not reach the human body.

  Therefore, as shown in FIG. 2, the vibration amount (v) of the mobile terminal 10 itself decreases with a certain width or more when shifting from the non-gripping state to the gripping state (t = tg). . The CPU 22 captures such a change in the vibration amount and starts a call process without waiting for an incoming call operation by the key input device 20.

  The call start process in the manner mode as described above is performed by the CPU 22 under the control of the multitask OS, the main task shown in FIG. 4, the vibration amount calculation task shown in FIG. 5, and the call start shown in FIGS. This is realized by executing tasks in parallel. The main task is activated when the manner mode is set by the key input device 20, and is terminated when the manner mode is canceled. The vibration amount calculation task is activated and terminated by the main task. The call start task is activated by the main task and ends spontaneously.

  A memory map of the main memory 24 when the manner mode is set is shown in FIG. Referring to FIG. 3, main memory 24 includes a program area 50, an acceleration area 52, a vibration amount area 54, an attention value area 56, a threshold area 58, and the like.

  The program area 50 stores a multitask OS and a control program corresponding to the flowcharts of FIGS. In the acceleration area 52, acceleration data (a0, a1,..., A9) detected by the acceleration sensor 28 is stored. The vibration amount area 54 stores the vibration amount (v) calculated by the vibration amount calculation task. The attention value area 56 stores attention values (V0, V1, V2) extracted from the vibration amount by the call start task. The threshold value area 58 stores threshold values (Vth1, Vth2) calculated by the call start task.

  Referring to FIG. 4, when the main task is activated, CPU 22 first determines whether there is an incoming call event in step S1. If there is no incoming call event, the determination is repeated after a predetermined waiting time. When the call processing circuit 14 receives the incoming call signal, the CPU 22 determines YES in step S1, and executes a series of processes in steps S3 to S9.

In step S3, each variable stored in the main memory 24, that is, a variable a0 to a9 indicating acceleration (hereinafter also simply referred to as variable a0 to a9), a variable v indicating vibration amount (hereinafter also simply referred to as variable v), Variables V0 to V2 indicating attention values (hereinafter also simply referred to as variables V0 to V2) and variables Vth1 and Vth2 indicating threshold values (hereinafter also simply referred to as variables Vth1 and Vth2 respectively) are initialized to “0”. In step S5, an operation start command is issued to the vibrator 26 and the acceleration sensor 28. In response to this, the vibrator 26 starts to vibrate, and the acceleration sensor 28 starts a detection operation.

  Here, referring to FIG. 1, the CPU 22 includes a buffer 22b, and acceleration data output from the acceleration sensor 28 is temporarily stored in the buffer 22b. The buffer 22b has a capacity capable of storing, for example, acceleration data for 1/10 second (for example, 10 samples: a0 to a9). When the buffer 22b is full, the oldest acceleration data, that is, the acceleration data of 1/10 second before is overwritten by the latest acceleration data. Therefore, after 1/10 second has elapsed from the start of writing, the buffer 22b always has acceleration data for the latest 1/10 second.

  On the other hand, the acceleration sensor 28 has characteristics suitable for acceleration caused by vibration of the vibrator 26 (for example, maximum amplitude ± 5 G, frequency 100 to 200 Hz). Acceleration (about 0 to several Hz) due to gravity or user movement (for example, movement of grasping the mobile terminal 10 by hand) is not detected by the acceleration sensor 28. In addition, when this kind of noise component is contained in the acceleration data output from the acceleration sensor 28, this can be removed by CPU22 performing a filter process etc., for example.

  Returning to FIG. 4, the vibration amount calculation task is activated in step S7, and the call start task is activated in step S9. When the vibration amount calculation task is activated, the CPU 22 starts a process of taking acceleration data (a1 to a9) from the buffer 22b and calculating the vibration amount (v) every 0.1 second (see FIG. 5: described later). ). When the call start task is activated, the CPU 22 further starts a process of determining the call start timing based on the change in the vibration amount (v) (see FIGS. 6 and 7: described later).

  After starting the vibration amount calculation task and the call start task in this way, the processing on the main task side enters the event waiting loop of steps S11 and S13. In step S11, the CPU 22 determines whether call processing has been started, and in step S13, determines whether there is a call termination event. When the call process is started by the call start task, YES is determined in step S11, and the process on the main task side proceeds to step S17. When the call processing circuit 14 receives the call termination signal without starting the call process, the CPU 22 completes the call start task in step S15, and then executes a series of processes in steps S17 and S19.

  In step S17, an operation stop command is issued to the vibrator 26 and the acceleration sensor 28. In response to this, the vibrator 26 stops vibration and the acceleration sensor 28 stops the detection operation. In step S19, the vibration amount calculation task is terminated. Thereafter, the processing of the CPU 22 returns to step S1.

  In the vibration amount calculation task, the following processing is executed. In step S31, the CPU 22 first loads the acceleration (a1 to a9) held in the buffer 22b into the acceleration area 52 (see FIG. 3) of the main memory 24. In the next step S33, the timer 22t is reset and started. In the next step S35, the vibration amount of the mobile terminal 10 itself is calculated by the following equation (1) based on the acceleration data stored in the acceleration region 52.

v = {| a0 | + | a1 | + ... + | a9 |} / 10 (1)
Note that the vibration amount (v) calculated by the above equation (1) is an average acceleration obtained by averaging the magnitude of the current acceleration over 0.1 seconds. It may be longer or shorter than 0.1 seconds. In addition, it is not always necessary to take an average, and the magnitude of the current acceleration may be simply integrated as in the following equation (2).

v = | a0 | + | a1 | + ... + | a9 | (2)
Alternatively, the capture period T may be set to 1/100 second, and the magnitude of the current acceleration itself may be used as the vibration amount (v) as in the following equation (3).

v = | a | (3)
However, if the average value is taken over an appropriate period as in the above formula (1), malfunction due to minute fluctuations in acceleration can be prevented.

  Further, since the vibration amount (v) is only referred to when detecting a state change of the mobile terminal 10, it does not have to be an actual physical quantity such as acceleration or speed. On the other hand, the state change is easier to detect when the value changes sharply before and after. Therefore, the vibration amount (v) may be calculated by the following equation (4), for example.

v = a02 + a12 + ... + a92 (4)
After calculating the vibration amount in this way, the CPU 22 determines whether or not the capture period, that is, 0.1 seconds has elapsed in step S37. If NO, the CPU 22 repeatedly determines after a predetermined waiting time. When the value of the timer 22t reaches 0.1 seconds, “YES” is determined in the step S37, and the process returns to the step S31. Thus, the variable v is updated every 0.1 second.

  In the call start task, the following processing is executed. The CPU 22 first determines in step S51 whether or not the variable v has been updated N1 times (N1 is a natural number: for example, 2 times). If NO in this step, the CPU 22 repeatedly makes a determination after a predetermined waiting time. When the variable v is updated N1 times by the vibration amount calculation task, “YES” is determined in the step S51, and the process proceeds to the step S53. In step S53, the variable v is set to the variable V0. Thereby, assuming that the vibration start time is t = 0, for example, the average vibration amount for 0.1 seconds corresponding to t = 0.1 to 0.2 is determined as the variable V0, that is, the first attention value.

  In subsequent step S55, the CPU 22 calculates a threshold value Vth1 corresponding to the variable V0. Specifically, the variable V0 is multiplied by a coefficient k1 (in this example, a constant: 0.1, for example), and the result is set in the variable Vth1. Thereafter, the loop processing of steps S57 to S61 is executed.

  In step S57, the CPU 22 determines whether or not the variable v has been updated N2 times (N2 is a natural number: for example, once). If NO, the CPU 22 repeatedly performs determination with a predetermined waiting time. If the variable v is further updated N2 times by the vibration amount calculation task, “YES” is determined in the step S57, and the process proceeds to a step S59. In step S59, the variable v is set to the variable V1. In the next step S61, it is determined whether or not the result of subtracting the variable V1 from the variable V0 (V0−V1) exceeds the threshold value Vth1, and if “NO” here, the process returns to the step S57. Therefore, the value of the variable V1 is updated every 0.1 second while the portable terminal 10 is in the non-gripping state.

  If YES in step S61, the process proceeds to step S63. That is, when the current vibration amount (V1) shows a decrease of more than 10% with reference to the vibration amount (V0) at the beginning (vibration start time), the state change from the non-gripping state to the gripping state may have occurred. It is judged that there is sex.

In step S63, the CPU 22 calculates a threshold value Vth2 corresponding to the variable V1. Specifically, the variable V1 is multiplied by a coefficient k2 (in this embodiment, a constant: 0.05, for example), and the result is set in the variable Vth2. Thereafter, the process enters a loop of steps S57 to S69. Thus, the time (t = tg) when the state of the mobile terminal 10 changes from the non-gripping state to the gripping state or the average vibration amount for 0.1 seconds starting from the vicinity thereof becomes the variable V1, that is, the second attention value. It is determined.

  In step S65, the CPU 22 determines whether or not the variable v has been updated N3 times (N3 is a natural number: for example, twice). If NO, the CPU 22 repeatedly performs determination with a predetermined waiting time. When the variable v is further updated N3 times by the vibration amount calculation task, “YES” is determined in the step S65, and the process proceeds to the step S67. In step S67, the variable v is set to the variable V2. Thus, the average vibration amount for 0.1 seconds corresponding to t = (tg + 0.2) to (tg + 0.3) is determined as the variable V2, that is, the third attention value.

  In the next step S69, it is determined whether or not the magnitude of the difference between the variable V1 and the variable V2 (| V1-V2 |) is lower than the threshold value Vth2. If NO here, the state of the mobile terminal 10 changes. It is assumed that it has not been held (it is still in a non-gripping state), and the process returns to step S57.

  If YES in step S69, the process proceeds to step S71. That is, the vibration amount (V2) 0.2 seconds later (second time point) is ± 5% based on the vibration amount (V1) at the time point when it is determined that there is a possibility of a state change (first time point). When it is within the range, it is determined that the state change from the non-gripping state to the gripping state has actually occurred.

  In step S <b> 71, the CPU 22 issues a call start command to the call processing circuit 14. Thus, approximately 0.2 to 0.3 seconds after the state of the portable terminal 10 changes from the non-gripping state to the gripping state, the call processing is started without waiting for an incoming call operation. Thereafter, the CPU 22 ends the call start task.

  Finally, the threshold values Vth1 and Vth2 to the coefficients k1 and k2 described above are examined by experimental data. FIG. 8A shows the respective parts (P1 to P5) and directions (x to z) of the mobile terminal 10 main body (housing). FIG. 8B shows the acceleration values (unit: G) measured at each part of FIG. 8A when the vibrator 26 is vibrating, and the average value calculated from these measured values. The case where the portable terminal 10 is placed on a desk, the case where the portable terminal 10 is placed on a sponge, and the case where the portable terminal 10 is held by a hand are shown. FIG. 8C shows acceleration values (ax, ay, az) in the xyz directions calculated from the measured values in FIG. 8B, and vibration amount values further calculated from these calculated values ( | A |: the unit is G) is shown when the mobile terminal 10 is placed on a desk, placed on a sponge, and held by a hand.

  In FIG. 8B, “average” is an average value of the measurement results at the respective parts P1 to P5 shown in FIG. Further, in FIG. 8C, “ax”, that is, the acceleration in the vertical direction is an average value of the measurement results in the pair of front and rear portions P4 and P5, and “ay”, that is, the acceleration in the horizontal direction, is a pair of left and right portions. The average value of the measurement results at P2 and P3, “az”, that is, the acceleration in the vertical direction is the measurement result itself at the part P1, and the vibration amount is the magnitude of the acceleration vector (ax, ay, az). As a result, it is calculated by the following equation (5).

| A | = √ (ax2 + ay2 + az2) (5)
First, paying attention to the “average” in FIG. 8B, when the mobile terminal 10 placed on the desk is picked up, the acceleration changes from 3.02 G to 1.20 G. Is 1.82G (about 60% of 3.02G). On the other hand, in the embodiment, since k1 = 0.1 and the threshold value Vth1 is calculated as 0.1 * 3.02G≈0.30G, this change is detected as a change exceeding the threshold value Vth1. Further, since k2 = 0.05 and the threshold value Vth2 is 0.05 * 1.20G = 0.06G, if the subsequent fluctuation range is within the range of ± 0.06G, this change will be grasped from the non-gripping state. It is determined that this is a change to the state.

  Similarly, when the mobile terminal 10 placed on the sponge is picked up, the acceleration changes from 1.41 G to 1.20 G, so the decrease is 0.21 G (about 15% of 1.41 G). ). In the embodiment, the threshold value Vth1 is calculated as 0.1 * 1.41G≈0.14G, so this change is detected as a change exceeding the threshold value Vth1. Further, since the threshold value Vth2 is also 0.06G, if the subsequent fluctuation range is within a range of ± 0.06G, this change is determined to be a change from the non-gripping state to the gripping state.

  In this way, it is possible to detect a change from the non-gripping state to the gripping state regardless of whether the support in the non-gripping state is a desk or a sponge. Since many supports are positioned between the desk and the sponge, the threshold values used in the examples are considered appropriate.

  Next, assuming a case where a three-axis sensor is used as the acceleration sensor 28, attention is paid to the “vibration amount” in FIG. In this case, when the portable terminal 10 on the desk is picked up, the amount of vibration changes from 6.29 G to 2.58 G, and thus the reduction width is 3.71 G (about 59% of 6.29 G). On the other hand, in the embodiment, since k1 = 0.1 and the threshold value Vth1 is calculated as 0.1 * 6.29G≈0.63G, this change is detected as a change exceeding the threshold value Vth1. In addition, since k2 = 0.05 and the threshold value Vth2 is 0.05 * 2.58G≈0.13G, if the subsequent fluctuation range is within the range of ± 0.13G, this change is grasped from the non-gripping state. It is determined that this is a change to the state.

  Similarly, when the portable terminal 10 on the sponge is picked up, the amount of vibration changes from 2.92 G to 2.58 G, so the reduction width is 0.34 G (about 12% of 2.92 G). In the embodiment, since the threshold value Vth1 is calculated as 0.1 * 2.92G≈0.29G, this change is detected as a change exceeding the threshold value Vth1. Since the threshold value Vth2 is also 0.13G, if the subsequent fluctuation range is within the range of ± 0.13G, this change is also determined to be a change from the non-gripping state to the gripping state.

  Therefore, even when a three-axis sensor is used, the threshold values used in the examples are considered appropriate.

  In this embodiment, the threshold values are calculated as Vth1 = k1 * V0, Vth2 = k2 * V1 (k1 = 0.1, k2 = 0.05), but both the coefficients k1 and k2 in the calculation formula or One value may be changeable. For example, three values 0.05, 0.1 and 0.15 are prepared as variable values of the coefficient k1, and three values 0.025, 0.05 and 0.075 are prepared as variable values of the coefficient k2. Keep it. If each user selects a desired value from these variable values using the key input device 20, it is possible to cope with individual differences in grip strength and weight.

  Further, according to the experimental data shown in FIGS. 8B and 8C, the threshold values can be fixed values (for example, Vth1 = 0.2, Vth2 = 0.1).

As is apparent from the above, in this embodiment, the mobile terminal 10 performs a call process according to at least the incoming call operation with the vibrator 26 that starts the operation of applying a predetermined vibration to the terminal itself in response to the incoming call event. A call processing circuit 14 to be started, an acceleration sensor 28 for repeatedly detecting the acceleration of the terminal itself, and a CPU 22 are provided. The CPU 22 repeatedly calculates the vibration amount of the terminal itself due to the vibrator 26 based on the detection value of the acceleration sensor 28 (S31 to S37), and determines that the terminal itself is gripped by the hand based on the change of the calculated value. Then, when it is determined that the terminal itself is grasped by hand, the call processing circuit 14 is controlled to start the call processing without waiting for an incoming call operation (S71). Thereby, when the mobile terminal 10 starts to vibrate, the user can start a call without an incoming call operation by simply grasping the mobile terminal 10.

  Since this embodiment is based on the premise that the vibration of the vibrator 26 is continuous, the case where the vibration is intermittent in this embodiment will be described as a first modification.

  This modification is different from the original embodiment only in the vibration waveform of the vibrator 26 (see FIG. 9) and the vibration amount calculation task suitable for this (see FIG. 10). The configuration of the mobile terminal 10 and the memory map, main task, and call start task in the state where the manner mode is set are the same as those in the original embodiment, and therefore FIG. 1, FIG. 3, FIG. 4, FIG. Is also incorporated in this modification.

  As shown in FIG. 9, the vibrator 26 according to this modification repeats the operation of vibrating for 0.5 seconds and stopping for 0.5 seconds. This intermittent operation is based on the control of the CPU 22, and the CPU 22 recognizes whether the vibrator 26 is oscillating or stopped at the present time.

  In the vibration amount calculation task, as shown in FIG. 10, the CPU 22 first determines whether or not the current time is within the vibration period in step S30. If NO, the CPU 22 repeatedly makes a determination after a predetermined waiting time. If the determination result of step S30 is YES, the process of step S31-S37 will be performed. Therefore, the variable v is updated only within the vibration period.

  For this reason, in the call start task shown in FIGS. 6 and 7, during the stop period, the determination results of steps S51, S57, and S65 are always NO, and the process does not proceed. Therefore, the vibration stop of the vibrator 26 is not erroneously detected as a change from the non-gripping state to the gripping state.

  According to this modification, even when the vibrator 26 is intermittently vibrated, it is possible to accurately detect the change from the non-gripping state to the gripping state and start the call process.

  In the first embodiment to the first modified example, even if the vibration amount is decreased, the call processing is not started unless the decreased vibration amount is stable (see FIG. 6 and FIG. 7: Step S69). In the case of NO), the determination of whether or not it is stable may be omitted. In such a second modification, the call start task is as shown in FIG. That is, the call start command is issued when the determination result in step S61 changes from NO to YES.

  Note that the call start processing of the present invention is not limited to the case where the manner mode is set, but can also be applied to the case where the manner mode is canceled. When the manner mode is canceled and the tasks shown in FIGS. 4 to 7 are executed, the mobile terminal 10 vibrates at the same time as outputting a ring tone in response to an incoming call event, but the user can perform an incoming call operation. You can start a call.

  Note that the numerical values related to the period, threshold value, and the like mentioned above are merely examples, and are changed as appropriate.

  Although the mobile terminal 10 has been described above, the present invention can be applied to a processing device that performs processing according to an operation while being held by a hand, in other words, a mobile terminal including a CPU. Examples of the process to be executed include a telephone call process, a data communication process such as an e-mail, and a reservation viewing process. For example, in the case of a mobile terminal with a TV, if a desired program is reserved, a viewing start event is issued at the broadcast time of the program, and the vibrator starts to vibrate. In response, when the user holds the terminal, the viewing process of the program is started without waiting for the viewing start operation.

10 ... mobile terminal 14 ... call processing circuit 22 ... CPU
22b ... buffer 22t ... timer 24 ... main memory 26 ... vibrator 28 ... acceleration sensor

Claims (1)

A detection unit for detecting an incoming call;
A determination unit that determines whether the processing device itself is grasped by a hand when the detection unit detects an incoming call;
A processing apparatus comprising: a start unit that starts a call process for the incoming call when the determination unit determines that the processing apparatus itself is gripped by a hand.