JP4657889B2 - Wireless communication apparatus, wireless communication method, wireless communication program, and recording medium - Google Patents

Description

  The present invention relates to a wireless communication apparatus, a wireless communication method, a wireless communication program, and a recording medium that execute wireless communication having directivity.

  In many cases, wireless communication devices such as mobile phones and PDAs (Personal Digital Assistants) have a function of communicating information to other devices by short-range wireless communication, particularly by infrared rays. Most remote controllers that operate TV channels and the like communicate with infrared rays. The characteristics of infrared communication are that the communication speed is relatively low and that the signal has directivity and stable communication can be performed only in a specific direction.

  In recent years, mobile phones have become able to handle large amounts of data such as images. In addition, remote controllers have become more sophisticated, and the amount of data that can be communicated from remote controllers tends to increase.

  It takes a certain amount of time to communicate a large amount of data to other devices using relatively low-speed communication means using infrared communication. This is unavoidable at present. On the other hand, a user usually operates a cellular phone, a PDA, a remote controller or the like while holding it in his hand. For this reason, during operation, the apparatus will move to some extent due to camera shake or the like. In particular, immediately after a button operation, the communication direction of the wireless communication device varies due to the shaking of the user's hand. At this time, stable communication cannot be expected with directional infrared communication.

  This is shown in FIG. As shown in FIG. 31, when the mobile phone 100 is directly facing the receiver of the television 170 that is the communication partner, the communication execution signal can be communicated correctly. On the other hand, infrared rays cannot be communicated when facing away from the receiving unit.

  Various attempts have been made to improve communication instability caused by such fluctuations in the communication direction. For example, Patent Document 1 discloses a technique for eliminating the discomfort during user operation by eliminating the directivity of communication with a controlled device of a remote controller by attaching infrared light emitting diodes in a three-dimensional radial pattern.

In Patent Document 2, the duty of the remote control signal is controlled so that the light emission amount of the infrared light emitting element gradually increases as it is sequentially output, or the remote control signal is provided sequentially with a plurality of infrared light emitting elements. Accordingly, a technique for controlling the light emission of a plurality of infrared light emitting elements so that the directivity of light emission of the infrared light emitting elements gradually increases is disclosed.
Japanese Patent Laid-Open No. 4-56537 (published on February 24, 1992) JP-A-8-204983 (published on August 9, 1996)

  However, in the techniques of Patent Documents 1 and 2, the remote controller is equipped with a plurality of infrared light emitting circuits. This may lead to circuit complexity. Further, in the techniques of Patent Documents 1 and 2, infrared rays are emitted in a direction that does not require emission. Furthermore, with the technique of Patent Document 2, the amount of light emission is increased to an unnecessary level. In any case, a problem that causes an increase in power consumption occurs.

  In particular, in the technique of Patent Document 1, infrared light emitting diodes are attached in a three-dimensional radial pattern. For this reason, since infrared rays are emitted in all directions, the infrared rays are transmitted even to devices other than devices that are originally controlled. This may cause malfunction of devices other than the intended purpose or may cause extra processing such as noise processing.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a wireless communication device, a wireless communication method, a wireless communication program, and a recording medium that can stably perform wireless communication with other devices. There is.

In order to solve the above problems, a wireless communication device according to the present invention provides:
In a wireless communication apparatus provided with a communication means for communicating data by a wireless signal having directivity,
An operation amount detecting means for detecting a predetermined operation amount representing a spatial movement of the wireless communication device;
An operation amount determining means for determining whether or not the operation amount is smaller than a predetermined reference amount;
The communication means is
The data is communicated when the operation amount determining means determines that the operation amount is smaller than the reference amount.

  According to said structure, an operation amount detection means detects the predetermined operation amount showing the spatial motion of a radio | wireless communication apparatus. Further, the motion amount determination means determines whether or not the motion amount detected by the motion amount detection means is smaller than a predetermined reference amount. This reference amount is an amount by which it can be determined that the wireless communication device is stationary. At this time, when the operation amount determination unit determines that the operation amount is smaller than the reference amount, the communication unit communicates data. Therefore, the communication means communicates data when it is determined that the wireless communication device is stationary.

  In this way, the wireless communication device can communicate data when the device is stationary, avoiding when the device is vibrating due to camera shake or the like by the user. As a result, the wireless communication device has an effect of being able to stably communicate with other devices using a directivity wireless signal.

In order to solve the above problems, a wireless communication method according to the present invention provides:
In a wireless communication method executed by a wireless communication device that communicates data using a wireless signal having directivity,
An operation amount detecting step for detecting a predetermined operation amount representing a spatial movement of the wireless communication device;
An operation amount determination step for determining whether or not the operation amount is smaller than a predetermined reference amount;
The operation amount determination step includes a communication step of communicating the data when the operation amount is determined to be smaller than the reference amount.

  According to said structure, this method has an effect similar to the radio | wireless communication apparatus mentioned above.

In the wireless communication device according to the present invention,
It is preferable that the motion amount detection means detects the acceleration of the wireless communication device as the motion amount.

  According to the above configuration, the motion amount detection means detects the acceleration of the wireless communication device as the motion amount of the wireless communication device. Therefore, the movement amount determination means determines whether or not the acceleration of the wireless communication device is smaller than a predetermined reference acceleration. At this time, the communication means communicates data when it is determined that the acceleration is smaller than the reference acceleration.

  As described above, the wireless communication device can communicate data when the device is in a stationary state without acceleration while avoiding a case where a constant acceleration is applied to the device due to a hand shake by a user. As a result, the wireless communication device has an effect of being able to stably communicate with other devices using a directivity wireless signal.

In the wireless communication device according to the present invention,
It is preferable that the movement amount detection unit detects angular acceleration around a predetermined axis in the wireless communication device as the movement amount.

  According to the above configuration, the motion amount detection means detects the angular acceleration of the wireless communication device as the motion amount of the wireless communication device. Therefore, the determination unit determines whether or not the angular acceleration of the wireless communication device is smaller than a predetermined reference angular acceleration. At this time, the communication means communicates data when it is determined that the angular acceleration is smaller than the reference angular acceleration.

  In this way, the wireless communication device avoids the case where the device is subject to a certain angular acceleration due to camera shake by the user and the wireless communication device is rotating, etc., and communicates data when there is no angular acceleration and is stationary. it can. As a result, the wireless communication device has an effect of being able to stably communicate with other devices using a directivity wireless signal.

In the wireless communication device according to the present invention,
The operation amount detecting means detects a level of a radio signal transmitted from a communication partner as the operation amount,
The communication means is
When the operation amount determination determines that the level of the wireless signal transmitted from the communication partner is higher than a predetermined reference level, the data is communicated.

  According to said structure, an operation amount detection means detects the level of the radio signal transmitted from the communicating party as an operation amount of a radio | wireless communication apparatus. At this time, the communication means communicates data when it is determined that the level of the radio signal transmitted from the communication partner is higher than a predetermined reference level. If the level of the wireless signal transmitted from the communication partner is higher than the reference level, it can be determined that the wireless communication device is not subjected to vibration such as camera shake and is correctly facing the communication partner. Accordingly, the wireless communication device communicates data when the device is in a stable stationary state, avoiding when the device is out of the direction facing the communication partner due to camera shake or the like by the user. As a result, the wireless communication device has an effect of being able to stably communicate with other devices using a directivity wireless signal.

In the wireless communication device according to the present invention,
A communication start receiving means for receiving an input of a communication start instruction by the user;
The communication means is
After the communication start accepting unit accepts the input of the communication start instruction, when the operation amount determining unit determines that the operation amount is smaller than the reference amount, it is preferable to start communication of the data. .

  According to said structure, a communication start reception means receives the input of the communication start instruction | indication by a user. Thereafter, when the operation amount determination unit determines that the operation amount of the wireless communication apparatus is smaller than the reference amount, the communication unit starts data communication.

  As described above, the wireless communication device has an effect that the communication can be stably executed after the user instructs the start of the communication.

In the wireless communication device according to the present invention,
The communication start acceptance means is
It is preferable to accept pressing of a predetermined button provided in the wireless communication device.

  According to the above configuration, the communication start accepting unit accepts pressing of a predetermined button provided in the wireless communication device. Thus, the wireless communication device has an effect that communication can be stably executed when the user presses a predetermined button.

In the wireless communication device according to the present invention,
A communication start receiving means for receiving an input of a communication start instruction when a predetermined spatial movement of the wireless communication device is detected;
The communication means is
After the communication start accepting unit accepts the input of the communication start instruction, it is preferable to start data communication when the operation amount determining unit determines that the operation amount is smaller than the reference amount.

  As a result, the wireless communication apparatus has an effect that the communication can be stably executed only by giving a predetermined movement by shaking the wireless communication apparatus without the user pressing a button.

In the wireless communication device according to the present invention,
The communication means is
During the data communication, it is preferable that the communication is interrupted when the operation amount determining unit determines that the operation amount is larger than the reference amount.

  According to the above configuration, the communication unit interrupts communication when the operation amount determination unit determines that the operation amount is greater than the reference amount during data communication. Accordingly, even after the communication is started assuming that the wireless communication device is stable, the communication is interrupted when it is determined again that the wireless communication device is vibrating due to camera shake or the like. Thereby, there exists an effect which can prevent continuing communication in an unstable state.

In the wireless communication device according to the present invention,
A moving distance calculating means for calculating a moving distance of the wireless communication device based on the acceleration detected by the movement amount detecting means;
A moving distance determining means for determining whether the moving distance from the time when the communication means starts communication to the current time calculated by the moving distance calculating means is shorter than a predetermined reference distance; And
The communication means is
When the movement distance determination unit determines that the movement distance is shorter than the reference distance, it is preferable to continue data communication.

  According to said structure, a movement distance calculation means calculates the movement distance of a radio | wireless communication apparatus based on the acceleration of the radio | wireless communication apparatus which the detection means detected. Specifically, the moving distance from the time when the communication means starts communication to the current time is calculated. At this time, the movement distance determination means determines whether or not the movement distance of the wireless communication apparatus calculated by the movement distance calculation means is shorter than a predetermined reference distance. This reference distance is a distance at which it can be determined that the communication of the wireless communication apparatus can be executed stably.

  Here, when the movement distance determination unit determines that the movement distance of the wireless communication device is shorter than the reference distance, the communication unit continues data communication. Therefore, the communication means continues the communication when the moving distance of the wireless communication device is sufficiently short after the communication is started. As a result, the wireless communication device has an effect of stably continuing communication using a wireless signal having directivity.

In the wireless communication device according to the present invention,
A moving angle calculating means for calculating a moving angle of the wireless communication device based on the angular acceleration detected by the detecting means;
And a movement angle determination means for determining whether or not the movement angle calculated by the calculation means from the time when the communication means starts communication to the current time is smaller than a predetermined reference angle. ,
The communication means is
When the movement angle determination means determines that the movement angle is smaller than the reference angle, it is preferable to continue data communication.

  According to the above configuration, the movement angle calculation unit calculates the movement angle of the wireless communication device based on the acceleration of the wireless communication device detected by the detection unit. Specifically, the movement angle from the time when the communication means starts communication to the current time is calculated. At this time, the movement angle determination means determines whether or not the movement angle of the wireless communication apparatus calculated by the movement angle calculation means is smaller than a predetermined reference angle. The reference angle is a distance at which it can be determined that the movement angle of the wireless communication device is sufficiently small and the communication of the wireless communication device can be performed stably.

  Here, when the movement angle determination means determines that the movement angle of the wireless communication apparatus is shorter than the reference angle, the communication means continues data communication. Therefore, the communication means continues the communication when the movement angle of the wireless communication device is sufficiently small after starting communication, for example, when the rotation amount of the wireless communication device is small. As a result, the wireless communication device has an effect of stably continuing communication using a wireless signal having directivity.

In the wireless communication device according to the present invention,
The communication means preferably communicates by radio waves.

  According to said structure, there exists an effect which can implement | achieve the radio | wireless communication apparatus which performs communication stably by the electromagnetic wave which has directivity.

In the wireless communication device according to the present invention,
The communication means preferably communicates with infrared rays.

  According to said structure, there exists an effect which can implement | achieve the radio | wireless communication apparatus which performs communication stably with the infrared rays which have directivity.

The wireless communication device according to the present invention further includes:
A mobile phone is preferred.

  According to said structure, there exists an effect which can provide the radio | wireless communication apparatus which can perform communication stably by the radio signal which has directivity.

The wireless communication device according to the present invention further includes:
A remote controller for operating the television is preferred.

  According to said structure, there exists an effect which can provide the remote controller which can perform communication stably by the radio signal which has directivity.

  The wireless communication device may be realized by a computer. In this case, a wireless communication program that realizes the wireless communication device in the computer by operating the computer as each of the above means and a computer-readable recording medium that records the wireless communication program also fall within the scope of the present invention.

  As described above, the wireless communication device according to the present invention includes a communication unit that communicates data when the determination unit determines that the operation amount of the wireless communication device is smaller than a predetermined reference amount. There is an effect that communication can be stably performed with other devices.

Embodiment 1
A first embodiment according to the present invention will be described below. INDUSTRIAL APPLICABILITY The present invention is most effective when a large amount of data such as photographs and image data is communicated to a display device such as a television by infrared waves or radio waves with strong directivity. At this time, the display device displays the received image data on the screen. The user views an image displayed on the screen. In the following, infrared communication is described as an example of the communication medium. However, the effect is the same when a highly directional radio wave such as a millimeter wave is used, and the communication medium to which the present invention can be applied is not limited to infrared.

  Infrared rays usually have a strong directivity. That is, it reaches only a certain range. Therefore, the user needs to direct the wireless communication device 1 (infrared transmission port thereof) to the receiver within a certain range. Otherwise, the infrared optical axis is disengaged from the infrared light receiving unit on the receiver side, so that communication becomes unstable or communication may not be possible.

  In the present embodiment, the wireless communication device 1 is a so-called portable small device. That is, the user usually operates by holding the wireless communication device 1 in his / her hand. At this time, the wireless communication device 1 may be unnecessarily vibrated by the user's operation while the user is operating the button of the wireless communication device 1 or immediately after that. This is generally called “camera shake”.

  Infrared communication is slower than other communications. Therefore, it takes a long time to send all of the large volume data by infrared communication. In this case, until the transmission is completed, the user must keep the wireless communication device 1 in his / her hand in a certain direction without causing camera shake.

  However, as will be described later, the wireless communication device 1 according to the present invention can solve the above-described problems and perform communication stably.

(Basic configuration of wireless communication device 1)
First, a wireless communication device 1 having a basic configuration common to all the embodiments will be described below with reference to FIG. The wireless communication device 1 can be realized as, for example, a remote controller, a PDA (Personal Digital Assistant), and a PHS (Personal Handy Phone). In addition to infrared rays, wireless communication using millimeter waves can also be performed.

  FIG. 1 is a block diagram showing a main configuration of a wireless communication device 1 according to the present invention. In addition to the components shown in this figure, the wireless communication apparatus 1 includes other components that realize various functions. However, in this embodiment, only the configuration directly related to the essence of the present invention will be described.

  As shown in FIG. 1, the wireless communication device 1 includes an operation amount detection unit 2 (operation amount detection unit), an operation amount determination unit 3 (operation amount determination unit), a limit value providing unit 4, a comparison operation unit 5, and a control unit. 6, the memory | storage part 7, the communication part 8 (communication means), and the communication start reception part 9 (communication start reception means) are provided.

  The motion amount detection unit 2 detects the spatial movement of the wireless communication device 1 as a quantitative value, that is, a motion amount. The operation amount determination unit 3 compares the operation amount detected by the operation amount detection unit 2 with a predetermined reference amount set in advance in the wireless communication device 1. This reference amount is an amount in a certain range, and is an amount that can be considered that the wireless communication device 1 is spatially stationary. The motion amount determination unit 3 outputs a communication execution signal instructing communication to the control unit 6 when the detected motion amount is within the reference amount range.

  The limit value providing unit 4 provides the above-described reference amount to the comparison operation unit 5. The comparison operation unit 5 compares the detected operation amount output from the operation amount detection unit 2 with the reference amount provided from the limit value providing unit 4 in the operation amount determination unit 3 and outputs a comparison result. . The control unit 6 comprehensively controls each member provided in the wireless communication device 1. The storage unit 7 stores various data, programs, and the like under the control of the control unit 6. The communication unit 8 performs data communication with other communication devices based on the control of the control unit 6. The communication start reception unit 9 receives an instruction to start communication by the user.

(Acceleration detector 11)
FIG. 2 is a block diagram illustrating a configuration of the wireless communication device 1 including the acceleration detection unit 11 as a specific example of the motion amount detection unit 2. The wireless communication device 1 shown in this figure includes an acceleration detection unit 11 that detects the acceleration of the wireless communication device 1 as the operation amount detection unit 2.

  FIG. 3 is a block diagram illustrating a configuration of the wireless communication device 1 including the angular acceleration detection unit 12 as a specific example of the motion amount detection unit 2. The wireless communication device 1 shown in this figure includes an angular acceleration detection unit 12 that detects the angular acceleration of the wireless communication device 1 as the operation amount detection unit 2.

  As described above, the difference between the configuration shown in FIG. 2 and the configuration shown in FIG. 3 is only whether the detected amount is acceleration or angular acceleration. That is, the essence of the operation executed by the wireless communication device 1 is the same for both. Therefore, in the following, the wireless communication device 1 shown in FIG. 2 will be described in detail.

(Details of acceleration detector 11)
First, the characteristics of the acceleration detector 11 will be described. Further, the operation amount determination unit 3 that determines how much the acceleration applied to the wireless communication device 1 is based on a stationary state will be described. As described above, the operation amount determination unit 3 determines whether or not the wireless communication device 1 can be regarded as a stationary state.

  The acceleration detection unit 11 detects the acceleration of the wireless communication device 1 according to the direction in which the wireless communication device 1 has moved and the magnitude of acceleration through an acceleration sensor (not shown). At this time, the acceleration detector 11 detects accelerations in three directions along three axes orthogonal to each other. At this time, the acceleration detection unit 11 outputs a voltage value representing the detected acceleration to the operation amount determination unit 3.

  The acceleration sensor is fixed to the wireless communication device 1. Thereby, the acceleration detection part 11 can detect the spatial motion of the radio | wireless communication apparatus 1 as a voltage according to directions, such as the front-back direction, the left-right direction, and the up-down direction. The acceleration detector 11 in the present embodiment detects accelerations in the X axis, Y axis, and Z axis directions, which are three axes orthogonal to each other. The acceleration detection unit 11 may detect the acceleration of any one of these three axes or only two axes.

  In the wireless communication device 1, the intersection where the three axes intersect with each other is in the acceleration sensor. The same applies to the case of two axes. Therefore, the intersection of the three axes in the wireless communication device 1 is determined according to the mounting position of the acceleration sensor. In addition, as long as the three axes X, Y, and Z are orthogonal to each other, their orientations may be arbitrary. Therefore, the acceleration sensor may be attached to the wireless communication device 1 so that the communication direction of the wireless communication device 1, for example, the output direction of infrared rays is a basic axis.

(Example of voltage detection)
While the wireless communication device 1 is moving due to camera shake or the like, the acceleration detection unit 11 detects a voltage proportional to the acceleration and acceleration direction of the wireless communication device 1 for each of the three axis directions, and the operation amount determination unit 3 Is output.

  In the present embodiment, the acceleration detection unit 11 outputs a voltage of 2.50 V when the acceleration of the wireless communication device 1 is 0 G (stationary) in any axial direction. Further, every time the acceleration increases by 1 G, 0.15 V is further added and output according to the direction of acceleration. If the acceleration decreases by 1 G, a voltage obtained by subtracting 0.15 V is output. For example, if there is an acceleration of 10G in a certain direction, the acceleration detector 11 outputs 4.00V (2.50V + 10G × 0.15V). On the other hand, if there is 10G acceleration in the opposite direction, 1.00V (2.50V-10G × 0.15V) is output.

  The limit value providing unit 4 outputs a predetermined limit value (reference amount) as a limit voltage to each of the three axes to the comparison operation unit 5. This limit value is a reference value by which it can be determined that the wireless communication device 1 is stationary. The limit value providing unit 4 divides the voltage of the power supply with a resistor or outputs the voltage using a battery. The limit voltage provided by the limit value providing unit 4 may be the same value or may be different in all three axes. In the present embodiment, the values are the same for all three axes.

  In the wireless communication device 1, the upper limit of acceleration that can determine that the wireless communication device 1 is stationary is set to 3.33 G for each of the axes. Therefore, the limit voltage corresponding to the upper limit is set to 3.00 V (2.50 V + 3.33 × 0.15 V) as the limit value. Furthermore, a limit voltage corresponding to 3.33G, which is the upper limit acceleration in the opposite direction, is 2.00 V (2.50 V−3.33 × 0.15 V), which is also set as the limit value. The relationship between the acceleration value detected by the acceleration detection unit 11 and the range in which it can be determined that the wireless communication device 1 is stationary is shown in FIG. FIG. 11 is a diagram illustrating a relationship between an acceleration value detected by the acceleration detection unit 11 and a range in which it can be determined that the wireless communication device 1 is stationary.

(Determination by the operation amount determination unit 3)
When determining that the stationary state of the wireless communication device 1 is maintained for a certain period of time, the movement amount determination unit 3 determines that the wireless communication device 1 is really stationary. For example, in A and B shown in FIG. 11, the time that can be determined as the still range is shorter than the reference time. Therefore, the operation amount determination unit 3 determines that the wireless communication device 1 is moving even if the state of A or B is established.

  The duration in which the wireless communication device 1 can be determined to be stationary is preset in the wireless communication device 1 in consideration of the characteristics of the wireless communication device 1, the communication speed, the communication range depending on the directivity of the wireless signal, and the like. .

(Details of the comparison operation unit 5)
Details of the comparison operation unit 5 will be described below with reference to FIG. FIG. 5 is a block diagram showing details of the comparison operation unit 5. As shown in FIG. 5, the comparison operation unit 5 includes three analog comparators. Each system corresponds to the acceleration value of each axis output from the acceleration detector 11. The comparison operation unit 5 includes two analog comparators, that is, an analog comparator A51 and an analog comparator B52 per system. Since there are three systems, the comparison operation unit 5 includes a total of six analog comparators.

  As described above, the acceleration detection unit 11 represents acceleration around the stationary voltage (2.5 V in the present embodiment) according to the plus direction and minus direction of the acceleration direction of the wireless communication device 1. Outputs voltage up and down. On the other hand, the comparison operation unit 5 determines whether the wireless communication device 1 is stationary for each acceleration direction. Therefore, the comparison operation unit 5 requires an analog comparator A51 and an analog comparator B52 for each axis output.

(Two analog comparators)
The analog comparator A51 determines whether or not the negative acceleration output voltage is greater than the limit voltage. The analog comparator B determines whether or not the output voltage of the positive acceleration is larger than the limit voltage. The positive direction and the negative direction here simply mean a certain direction and the opposite direction. Specifically, the analog comparator A compares the output voltage from the acceleration detector 11 with 2.00 V, which is a limit voltage. At this time, when the voltage output from the acceleration detector 11 is lower than the limit voltage of 2.00 V, that is, when the acceleration is large in the minus direction, the HIGH level is output. Conversely, when the voltage from the acceleration detection unit 11 is higher than the limit voltage of 2.00 V, the LOW level is output.

  On the other hand, the analog comparator B52 compares the output voltage from the acceleration detection unit 11 with 3.00 V which is a limit voltage. Accordingly, when the voltage from the acceleration detection unit 11 is higher than the limit voltage of 3.00 V, that is, when the acceleration is large in the plus direction, a HIGH level is output. Conversely, when the voltage from the acceleration detection unit 11 is lower than the limit voltage of 3.00 V, a LOW level is output.

  In the comparison operation unit 5, both the output of the analog comparator A 51 and the output of the analog comparator B 52 are input to the NOR circuit 53. Here, the NOR circuit 53 outputs a HIGH level only when both of these two outputs are at a LOW level. The comparison operation unit 5 includes three NOR circuits 53 respectively corresponding to the X axis, the Y axis, and the Z axis. All outputs from these three NOR circuits 53 are input to the AND circuit 54. Here, when all three outputs from the NOR circuit 53 are at a HIGH level, the AND circuit 54 outputs a predetermined communication execution signal. This communication execution signal is a signal indicating that the communication unit 8 may execute communication. As described above, when determining that the wireless communication device 1 is stationary in all three directions orthogonal to each other, the operation amount determination unit 3 outputs a communication execution signal that permits execution of communication.

  The operation amount determination unit 3 may include an amplifier to which the output voltage from the acceleration detection unit 11 is input. At this time, the direct output voltage from the acceleration detection unit 11 can be output to the analog comparator A51 and the analog comparator B52 by making the amplifier sufficiently large.

(Details of processing)
A flow of communication processing in the wireless communication device 1 will be described below. In the wireless communication device 1, the communication start accepting unit 9 specifically accepts an input through a predetermined communication start button. The user instructs the wireless communication apparatus 1 to start communication by pressing the communication start button. The communication start accepting unit 9 detects this operation and outputs a communication start instruction signal to the control unit 6. This signal means that the start of communication is instructed.

  In the wireless communication device 1, data to be transmitted to a communication partner device is stored in the storage unit 7 in advance. When the communication start instruction signal is input, the control unit 6 first determines whether or not the amount of data to be communicated by the communication unit 8 is greater than a predetermined reference data amount. This reference data amount is an amount within a range in which data can be transmitted unconditionally without determining the operation amount of the wireless communication device 1.

If the amount of data is small, the communication time is short. Therefore, when determining that the data amount is smaller than the reference data amount, the control unit 6 instructs the communication unit 8 to start communication without waiting for the wireless communication device 1 to be stationary. Thus, the communication unit 8 takes a long time for communication if the amount of data to start communication is large. Therefore, the communication unit 8 starts communication after the wireless communication device 1 is in a stationary and stable state. For the reference data amount serving as a reference for this determination, an optimal value is stored in advance in the storage unit 7 of the wireless communication apparatus 1 based on the communication speed, the directivity of the wireless signal, and the like. The faster the communication speed and the lower the directivity of the wireless signal (the larger the communicable angle), the larger the reference data amount that can be determined to be able to communicate without waiting for the wireless communication device 1 to be stationary.

  If the communication data amount is larger than the reference data amount, the communication unit 8 starts communication after the operation amount determination unit 3 determines that the wireless communication device 1 is stationary. At this time, the control unit 6 waits for the output of the communication execution signal from the operation amount determination unit 3. The operation amount determination unit 3 constantly monitors the voltage input from the acceleration detection unit 11. If the condition for outputting the communication execution signal is satisfied, that is, if the acceleration in all three axis directions is smaller than a predetermined reference value (3.33G in this embodiment), the communication execution signal is sent to the control unit 6. Output.

(Continuation of communication execution signal)
After the user presses the communication start button, the control unit 6 determines whether a communication execution signal from the operation amount determination unit 3 is input. At this time, the control unit 6 determines that the wireless communication device 1 is definitely stationary when the communication execution signal is continuously input for a certain time.

  When determined in this way, the control unit 6 instructs the communication unit 8 to start communication. Receiving this, the communication part 8 starts data communication by transmitting infrared rays.

  The motion amount determination unit 3 outputs a communication execution signal to the control unit 6 even when the acceleration momentarily decreases. Therefore, the control unit 6 does not determine that the wireless communication device 1 is stationary until the communication execution signal is continuously input for a predetermined time set in advance. That is, the communication unit 8 is not instructed to start communication.

  It should not be determined that the wireless communication device 1 is stably stationary if the acceleration is momentarily reduced. This is because there is a possibility that the wireless communication device 1 starts to move immediately thereafter. Therefore, the control unit 6 confirms that the input of the communication execution signal continues for a certain time. Thereby, it is confirmed that the state where the acceleration of the wireless communication device 1 is smaller than the reference value continues for a certain time. This fixed time is determined based on the usage status of the wireless communication device 1 and stored in the storage unit 7 of the wireless communication device 1 in advance.

(Function and effect)
As described above, when the control unit 6 determines that the wireless communication device 1 is moving due to camera shake or the like, the communication unit 8 does not start communication. On the other hand, when the control unit 6 determines that the wireless communication device 1 is stationary, the communication unit 8 starts communication. As a result, the wireless communication device 1 performs communication under conditions with less vibration. Therefore, since a radio signal having directivity is transmitted without moving toward the target direction, communication can be stably performed.

  In the present embodiment, when the user presses the communication start button, the control unit 6 instructs the communication unit 8 to start communication. Instead, the communication unit 8 may be instructed to start communication when the user shakes the wireless communication device 1 three times in the vertical direction, for example. Alternatively, the user may simultaneously press a plurality of specific buttons provided in the wireless communication device 1.

  Note that the above-described sensitivity and output voltage values of the acceleration sensor are merely examples. Further, the limit acceleration, that is, the limit voltage that can determine that the wireless communication device 1 is stationary is merely an example. The acceleration detection method or the limit value is determined according to the type of the wireless communication device 1 or the use condition of the wireless communication device 1 and is set in the wireless communication device 1 in advance.

(Process flow)
Communication processing executed by the wireless communication device 1 will be described below with reference to FIG. FIG. 12 is a flowchart illustrating communication processing executed by the wireless communication device 1.

  As shown in this figure, the user first presses the communication start button (step S10). This press is determined by the communication start accepting unit 9. If the communication start button has not been pressed by the user (No), the communication start receiving unit 9 again waits for an instruction to start communication (pressing the communication start button) by the user.

  If the communication start reception unit 9 determines that the communication start button has been pressed by the user (Yes), the control unit 6 stores the amount of data to be communicated stored in the storage unit 7 from the reference data amount. It is determined whether there are many (step S11). If the amount of data to be communicated is smaller than the reference data amount (No), the control unit 6 notifies the communication unit 8 of the execution of communication (step S12). At this time, the communication part 8 communicates data by infrared rays (step S13). Thereby, the wireless communication apparatus 1 does not take time for unnecessary processing. Moreover, it is not necessary to waste power.

  On the other hand, if the amount of data to be communicated is greater than the reference data amount in step S11 (Yes), the operation amount determination unit 3 acquires a voltage output from the acceleration detection unit 11 (step S14). Thereby, the operation amount determination unit 3 compares the output of the acceleration detection unit 11 with a preset limit value (step S15). At this time, the motion amount determination unit 3 switches the operation based on the magnitude of the output of the acceleration detection unit 11. That is, it is determined whether or not the output of the acceleration detector 11 is smaller than the limit voltage in any of the three directions along the X, Y, and Z axes (step S16).

  Here, if the three-axis outputs from the acceleration detection unit 11 are all smaller than the limit value (Yes), the operation amount determination unit 3 outputs a communication execution signal to the control unit 6 (step S19). At this time, the control unit 6 measures the time during which the output of the communication execution signal is continuously input, that is, the stationary duration time (step S20). Thereby, the control part 6 determines whether the state from which the output from the acceleration detection part 11 is smaller than a limit value continues for a predetermined reference time (step S22).

  Here, when it is determined that the stationary state of the wireless communication device 1 does not continue for a certain time (No), the control unit 6 does not issue an instruction to execute communication to the communication unit 8. At this time, the process returns to step S <b> 14, and the motion amount determination unit 3 acquires a voltage representing the acceleration value from the acceleration detection unit 11.

  On the other hand, when it is determined that the input of the communication execution signal from the acceleration detection unit 11 has continued for a certain time (Yes), the control unit 6 determines that the wireless communication device 1 is stationary for a certain time. Thereby, the control unit 6 instructs the communication unit 8 to start communication. In response to this instruction, the communication unit 8 starts data communication.

  In Step S16, when it is determined that even one output of the acceleration sensor is larger than the limit value (No), the operation amount determination unit 3 stops outputting the communication execution signal (Step S17). If the communication execution signal is not originally output at this time, the output stop state is continued. If it is confirmed that the output of the communication execution signal is stopped, the control unit 6 resets the measurement of the stationary duration time (step S18). That is, even if the wireless communication device 1 once becomes stationary, it cannot be determined that the wireless communication device 1 is really stationary unless the stationary state continues for a certain period of time. Therefore, each time the control unit 6 determines that the wireless communication device 1 is not stationary, it resets the stationary duration time. In this way, when it can be determined that the wireless communication apparatus 1 is stationary again, the stationary duration time is measured again. At this time, the motion amount determination unit 3 continues to acquire the detected acceleration value from the acceleration detection unit 11.

[Embodiment 2]
A second embodiment according to the present invention will be described below. FIG. 6 is a block diagram illustrating another configuration of the motion amount determination unit 3. As shown in this figure, the operation amount determination unit 3 of this embodiment includes three A / D converters 101. These A-D converters 101 respectively convert the output voltages for the three axes from the acceleration detector 11 into digital data. The movement amount determination unit 3 further includes an acceleration data processing unit 13. Each of the AD converters 101 outputs the generated digital data to the acceleration data processing unit 13. The acceleration data processing unit 13 stores digital data (“00FA”) representing the stationary state of the wireless communication device 1. Therefore, the acceleration data processing unit 13 calculates the difference between the digital acceleration data input from the A / D converter 101 and the digital data representing the stationary state of the wireless communication device 1.

  In addition, a reference value (acceleration limit value) representing the stationary state of the wireless communication device 1 is stored as digital data in advance in a ROM or flash memory provided in the limit value providing unit 4 for each acceleration detection axis. ing. The limit value providing unit 4 outputs the stored value to the comparison operation unit 5. An example of the limit value stored in the limit value providing unit 4 is shown in FIG. FIG. 9 is a diagram illustrating an example of the acceleration limit value stored in the limit value providing unit 4.

  In the present embodiment, all the above digital data are hexadecimal numbers. Other configurations relating to the wireless communication device 1 are the same as those in the first embodiment. That is, the characteristics of the acceleration detection unit 11 are the same as those in the first embodiment.

(Details of the operation amount determination unit 3)
The operation amount determination unit 3 of the present embodiment will be described below with reference to FIG. The acceleration detection unit 11 outputs a voltage representing the detected acceleration to each AD converter 101 provided in the AD conversion unit 10. The A-D converter 101 converts the input output voltage into digital data. The relationship between the output voltage representing the acceleration output from the acceleration detector 11, the value of the digital data converted by the A-D converter 101, and the value of the digital data output from the A-D converter 10 to the user is expressed as follows: One axis is shown in FIG. FIG. 8 shows the acceleration of the wireless communication device 1 detected by the acceleration detection unit 11, the voltage output by the wireless communication device 1, the digital data converted by the A-D conversion unit 10, and the operation amount determination unit 3 as the control unit. 6 is a diagram illustrating a relationship with a value notified to FIG.

  The acceleration detector 11 outputs a voltage corresponding to the acceleration. For example, if the detected acceleration is 0G, the acceleration detection unit 11 outputs a voltage of 2.50V. On the other hand, if the acceleration is 10G in the plus direction, 4.00V is output. If the acceleration is 10G in the minus direction, 1.00V is output.

  Each of the A-D converters 101 converts a value obtained by multiplying the voltage value up to two decimal places by 100 times to hexadecimal data. For example, 2.50 V, 10 V, and 1.00 V are converted into hexadecimal digital data of “00FA”, “0190”, and “0064”, respectively.

  The acceleration data processing unit 13 calculates the difference between the input value of each axis and “00FA” representing acceleration 0G (at rest). Thereby, the acceleration data processing unit 13 inputs the calculated three values individually to the three digital comparators 55 provided in the comparison operation unit 5 for each axis.

(Conversion to digital data)
In the example of FIG. 8, when the detected acceleration is +10 G, the acceleration detection unit 11 outputs a voltage of 4.00V. At this time, the A-D converter 101 converts the 4.00 V into “0190” digital data. Next, the acceleration data processing unit 13 calculates “0096” as the difference between “0190” and “00FA”, and outputs it to the corresponding digital comparator 55. As described above, “00FA” converts 2.50 V output from the acceleration detection unit 11 into digital data when the acceleration of the wireless communication device 1 is 0 G, that is, when the wireless communication device 1 is stationary. It is the value.

  On the other hand, when the acceleration of the wireless communication device 1 is −5G (5G in the reverse direction), the acceleration detection unit 11 outputs 1.75V. At this time, the A-D converter 101 changes 1.75 V to generate “00AF”. As a result, the acceleration data processing unit 13 calculates the difference between “00AF” and “00FA”, converts the difference into an absolute value, and outputs the absolute value to the corresponding digital comparator 55.

  The acceleration limit value shown in FIG. 9 is “0032”. This digital data corresponds to an acceleration of 3.33G. Each digital comparator 55 provided in the comparison operation unit 5 is HIGH when the value input from the acceleration data processing unit 13 is smaller than the acceleration limit value “0032” input from the limit value providing unit 4. The level is output to the AND circuit 56. Values are input to the AND circuit 56 from the three digital comparators 55 corresponding to the respective axes. When the values input from these three digital comparators 55 are all at the HIGH level, the AND circuit 56 outputs the communication execution signal to the control unit 6 as the HIGH level. That is, the AND circuit 56 outputs a communication execution signal only when the acceleration in all directions is smaller than the limit value “0032”.

(Relation between acceleration and judgment result)
FIG. 10 shows the acceleration of the wireless communication device 1 detected by the acceleration detection unit 11, the voltage output by the acceleration detection unit 11, the difference from the stationary state of the wireless communication device 1, the limit value of acceleration, and the operation amount determination. It is a figure which shows the relationship with the determination result by the part 3. FIG.

  As shown in this figure, when the acceleration of the wireless communication device 1 is 10 G, the acceleration detection unit 11 outputs 4.00 V as a voltage representing the acceleration. At this time, the difference from when the wireless communication apparatus 1 is stationary is “0096” after being converted into digital data. This value is larger than the limit value “0032”. Therefore, the digital comparator 55 outputs a LOW level.

  On the other hand, if the acceleration of the wireless communication device 1 is 5G, the acceleration detection unit 11 outputs 3.25V as a voltage representing the acceleration. At this time, the difference from when the wireless communication device 1 is stationary is “004B” after being converted into digital data. This value is larger than the limit value “0032”. Therefore, the digital comparator outputs a LOW level.

  If the acceleration of the wireless communication device 1 is 2G, the acceleration detection unit 11 outputs 2.80 V as a voltage representing the acceleration. At this time, the difference from when the wireless communication apparatus 1 is stationary is “0018” after being converted into digital data. This value is smaller than the limit value “0032”. Therefore, the digital comparator outputs a HIGH level.

  Thus, when the acceleration values in all directions are all smaller than the limit values, the motion amount determination unit 3 determines that the wireless communication device 1 is stationary in all directions, and performs a communication execution signal. Is output to the control unit 6. Various processes based on the communication execution signal are the same as those in the first embodiment, and thus description thereof is omitted.

[Embodiment 3]
A third embodiment according to the present invention will be described below. The wireless communication device 1 of the present embodiment includes an operation amount determination unit 3 having a more simplified configuration. That is, not the operation amount determination unit 3 but the control unit 6 determines whether or not the wireless communication device 1 is stationary.

(Configuration of operation amount determination unit 3)
The configuration of the wireless communication device 1 of the present embodiment is shown in FIGS. 4 and 7. FIG. 4 is a block diagram illustrating a configuration of the wireless communication device 1 that executes acceleration comparison in software. FIG. 7 is a block diagram showing a configuration of the comparison operation amount determination unit 3 that performs acceleration comparison in software. The movement amount determination unit 3 illustrated in FIG. 7 includes an A / D conversion unit 10 including three A / D converters 101 that convert an output voltage from the acceleration detection unit 11 into digital data, an acceleration data processing unit 13, and the like. It has. These members are basically the same as those shown in FIG. However, the acceleration limit value that can determine that the wireless communication device 1 is stationary is stored in advance as digital data individually in the storage unit 7 corresponding to the three axes. The nature of the data is the same as described above.

  Other configurations are the same as those in the first and second embodiments. That is, the characteristics of the acceleration detector 11 are the same as those in the first embodiment. However, in this embodiment, the operation amount determination unit 3 does not output a communication execution signal. Instead, the control unit 6 determines whether or not the acceleration detected by the acceleration detection unit 11 is smaller than a predetermined limit value, not the operation amount determination unit 3. That is, the control unit 6 compares the value from the motion amount determination unit 3 indicating whether or not the wireless communication apparatus 1 is stationary with the limit value stored in the storage unit 7. Based on this determination, if the value input from the motion amount determination unit 3 (acceleration data processing unit 13) is smaller than the limit value, the communication unit 8 is instructed to execute communication.

(Details of the operation amount determination unit 3)
Details of the operation amount determination unit 3 shown in FIG. 7 will be described below. Similar to the operation amount determination unit 3 in FIG. 6, the AD converter 101 converts the output voltage from the acceleration detection unit 11 into digital data. The acceleration data processing unit 13 calculates the difference between the digital data generated by the A / D converter 101 and the output voltage corresponding to when the wireless communication device 1 is stationary as an absolute value. Thus, the motion amount determination unit 3 is requested for the difference value calculated by the acceleration data processing unit 13. Thereby, the movement amount determination unit 3 outputs the current value calculated by the acceleration data processing unit 13 to the control unit 6.

  The acceleration detection unit 11 outputs a voltage corresponding to the acceleration to the operation amount determination unit 3. For example, if the measured acceleration is 0 G, the communication start acceptance unit 9 outputs a voltage of 2.50 V. On the other hand, if the acceleration is 10G in the plus direction, 4.00V is output. If the acceleration is 10G in the minus direction, 1.00V is output.

  Each of the A-D converters 101 converts a value obtained by multiplying the voltage value up to two decimal places by 100 times to hexadecimal data. For example, 2.50 V, 10 V, and 1.00 V are converted into hexadecimal digital data of “00FA”, “0190”, and “0064”, respectively.

  The acceleration data processing unit 13 calculates the difference between the input value of each axis and “00FA” representing acceleration 0G (at rest). As a result, the acceleration data processing unit 13 outputs the calculated three values to the control unit 6.

(Value example)
In the example of FIG. 8, when the detected acceleration is +10 G, the acceleration detection unit 11 outputs a voltage of 4.00V. At this time, the A-D converter 101 converts the 4.00 V into “0190” digital data. Next, the acceleration data processing unit 13 calculates “0096” as the difference between “0190” and “00FA”, and outputs it to the control unit 6. As described above, “00FA” converts 2.50 V output from the acceleration detection unit 11 into digital data when the acceleration of the wireless communication device 1 is 0 G, that is, when the wireless communication device 1 is stationary. It is the value.

  On the other hand, when the acceleration of the wireless communication device 1 is −5G (5G in the reverse direction), the acceleration detection unit 11 outputs 1.75V. At this time, the A-D converter 101 changes 1.75 V to generate “00AF”. As a result, the acceleration data processing unit 13 calculates the difference between “00AF” and “00FA”, converts the difference into an absolute value, and outputs the absolute value to the control unit 6.

  The acceleration limit value shown in FIG. 9 is “0032”. This digital data corresponds to an acceleration of 3.33G. The control unit 6 stores the acceleration conversion data input from the AD conversion unit 101 in the comparison operation unit 5 and the axis for which the acceleration detection unit 11 detects acceleration in advance in the storage unit 7. The limit value “0032” is compared. This determines which value is smaller. If the data of all axes is equal to or less than the value corresponding to 3.33 G acceleration (“0032”), it is determined that the wireless communication device 1 is stationary.

(Example output)
If the wireless communication device 1 has an acceleration of 10G, the acceleration detector 11 outputs 4.00V as a voltage representing the acceleration. At this time, the difference from when the wireless communication apparatus 1 is stationary is “0096” after being converted into digital data. This value is larger than the limit value “0032”. The control unit 6 determines that the wireless communication device 1 is vibrating.

  On the other hand, if the acceleration of the wireless communication device 1 is 5G, the acceleration detection unit 11 outputs 3.25V as a voltage representing the acceleration. At this time, the difference from when the wireless communication device 1 is stationary is “004B” after being converted into digital data. This value is larger than the limit value “0032”. Therefore, the control unit 6 determines that the wireless communication device 1 is vibrating.

  If the acceleration of the wireless communication device 1 is 2G, the acceleration detection unit 11 outputs 2.80 V as a voltage representing the acceleration. At this time, the difference from when the wireless communication apparatus 1 is stationary is “0018” after being converted into digital data. This value is smaller than the limit value “0032”. The control unit 6 determines that the wireless communication device 1 is stationary.

  In this way, when the acceleration values in all the axial directions are all smaller than the limit value, the control unit 6 determines that the wireless communication device 1 is stationary.

(Example of communication processing)
Communication processing of the wireless communication device 1 according to the present embodiment will be described below. The control unit 6 requests the motion amount determination unit 3 for data representing the acceleration of the wireless communication device 1 by performing a polling operation at an appropriate time interval. If there is an instruction to start communication as a result of the user pressing a communication start button provided in the wireless communication device 1, the control unit 6 determines that the amount of data to be communicated at that time is greater than a predetermined reference data amount. Determine whether there are many. If the amount of communication data is larger than a predetermined reference data amount, the control unit 6 acquires acceleration data from the operation amount determination unit 3 as appropriate.

  The control unit 6 compares the limit value stored in the storage unit 7 with the value input from the acceleration data processing unit 13. For any of the three-axis data, if the value from the acceleration data processing unit 13 is smaller than the limit value for a certain period of time, the control unit 6 determines that the wireless communication device 1 is stationary. Thereby, the control unit 6 instructs the communication unit 8 to execute communication.

  If any value of the three directions is larger than the limit value, the control unit 6 determines that the wireless communication device 1 is not yet stationary. At this time, the control unit 6 does not instruct the communication unit 8 to execute communication.

  In this way, if the wireless communication device 1 is moving above the reference acceleration due to camera shake or the like, the communication unit 8 does not start data communication. On the other hand, when the wireless communication device 1 is stationary, the communication unit 8 starts communication. Thereby, the wireless communication apparatus 1 can perform communication stably.

(Flow of communication processing)
The communication process executed by the wireless communication device 1 according to the present embodiment will be described below with reference to FIG. FIG. 13 is a flowchart for explaining a communication table executed by the wireless communication device 1.

  As shown in this figure, the user first presses the communication start button (step S110). This press is determined by the communication start accepting unit 9. If the communication start button has not been pressed by the user (No), the communication start receiving unit 9 again waits for an instruction to start communication (pressing the communication start button) by the user.

  If the communication start button is pressed by the user (Yes), the control unit 6 determines whether or not the amount of data to be communicated stored in the storage unit 7 is larger than the reference data amount (step S111). ). If the amount of data to be communicated is less than the reference data amount (Yes), the control unit 6 notifies the communication unit 8 of the execution of communication (step S112). Thereby, the communication part 8 communicates data by infrared rays (step S113). Therefore, the wireless communication apparatus 1 does not take time for unnecessary processing. Moreover, it is not necessary to waste power.

  On the other hand, if the amount of data to be communicated is larger than the reference data amount in step S111 (Yes), the control unit 6 requests output data of the acceleration sensor from the operation amount determination unit 3 (step S114). In response to a request from the control unit 6, the motion amount determination unit 3 calculates the difference between the value obtained by performing A / D conversion on the output of the acceleration sensor and the value “00FA” corresponding to 0 G (stationary), and obtains the absolute value. The data is converted and notified to the control unit 6 (step S115). The control unit 6 compares the acceleration value acquired from the motion amount determination unit 3 with the limit value stored in the storage unit 7 (step S116). Thereby, the control unit 6 determines whether or not the acceleration of the wireless communication device 1 is smaller than the limit value in any of the three directions (step S117).

  When the determination result in step S117 is “true” (Yes), the control unit 6 measures a predetermined stationary duration (step S119). Thereby, the control part 6 determines whether the state from which the output from the acceleration detection part 11 is smaller than a limit value continues for a predetermined reference time (step S120).

  Here, when it is determined that the state in which the output from the operation amount determination unit 3 is smaller than the limit value does not continue for a predetermined reference time (No), the control unit 6 does not issue a communication execution instruction to the communication unit 8. . At this time, the process returns to step S114, and the control unit 6 requests the motion amount determination unit 3 to acquire an acceleration value.

  On the other hand, when it is determined that the state in which the output from the operation amount determination unit 3 is smaller than the limit value continues for a predetermined reference time (Yes), the control unit 6 determines that the wireless communication device 1 is stationary for a predetermined time. judge. Thereby, the control unit 6 instructs the communication unit 8 to start communication. In response to this instruction, the communication unit 8 starts data communication.

  In step S117, when it is determined that at least one acceleration in the three-axis directions of the wireless communication device 1 is larger than the limit value (No), the control unit 6 resets the measured still duration, The value is set to zero (step S118). At this time, the process returns to step S114, and the control unit 6 requests the operation amount determination unit 3 to acquire data from the acceleration detection unit 11.

[Embodiment 4]
A fourth embodiment according to the present invention will be described below. In the present embodiment, a description will be given of how the wireless communication device 1 that has started communication through the processes described in the first to third embodiments determines whether or not to continue communication thereafter. The processing described below can be executed by any of the wireless communication devices 1 described in the first to third embodiments.

  Even after the communication unit 8 starts communication, the operation amount determination unit 3 monitors the output of the acceleration detection unit 11. Therefore, the limit value set in advance is always compared with the output from the acceleration detector 11.

  Even when the communication unit 8 is communicating, the movement amount determination unit 3 outputs the communication execution signal if the output related to at least one of the outputs from the acceleration detection unit 11 is larger than the limit value. Stop. On the other hand, as long as all the outputs from the acceleration detector 11 continue to be smaller than the limit value, the communication execution signal is continuously output.

  Once the communication unit 8 starts communication, the communication unit 8 continues communication for a predetermined communication continuation possible time regardless of the presence or absence of a communication execution signal, that is, presence or absence of vibration. The communication continuation possible time is stored in the storage unit 7 in advance in the wireless communication device 1 as a time that does not particularly affect communication even if the wireless communication device 1 moves or vibrates due to camera shake or the like. . The communication continuation possible time is determined for each wireless communication device 1 based on the communication speed of the wireless communication device 1 and the communication range defined by the intensity of infrared directivity. When the communication continuation possible time has elapsed, the communication unit 8 once stops communication. At this time, the control unit 6 determines whether or not data to be communicated remains in the storage unit 7.

  That is, at every certain time determined by the characteristics of the wireless communication device 1, the control unit 6 determines whether or not the wireless communication device 1 has a communication obstruction factor such as camera shake each time. If data to be communicated remains, it is determined again whether a communication execution signal is input.

  If a communication execution signal is output from the operation amount determination unit 3, the control unit 6 instructs the communication unit 8 to continue communication. Thereby, the communication part 8 continues communication. On the other hand, if no communication execution signal is output from the operation amount determination unit 3, the control unit 6 determines to interrupt communication even if communication of all data to be communicated is not completed, and the communication unit 8. To instruct. At this time, the control unit 6 does not instruct the communication unit 8 to resume communication until the communication execution signal is input again, that is, until the wireless communication device 1 can be regarded as stationary again. The wireless communication device 1 repeats the above-described operation until communication of all data scheduled for communication is completed.

  As described above, when the communication execution signal is not detected during the data communication, the control unit 6 determines that the wireless communication device 1 is shaken. Thereby, the communication unit 8 interrupts communication. In response to this interruption, the receiving device (the television 70 in the present embodiment) that receives data transmitted from the wireless communication device 1 detects that the reception of a series of data has been interrupted for a predetermined time. Accordingly, the television displays a message on the screen and notifies the user that communication has been interrupted. Accordingly, it is possible to handle the wireless communication device 1 so that the user can grasp the communication status and perform communication normally. Therefore, the convenience of the wireless communication device 1 is further enhanced.

  At this time, for example, a message that allows the user to clearly understand the situation where the communication is not successful, such as “The wireless communication device 1 is blurred. Please return to the original position and hold it quietly”. May be displayed on the screen.

(Communication continuation determination process)
The above processing will be described below with reference to FIG. FIG. 14 is a flowchart illustrating a flow of communication continuation determination processing executed by the wireless communication device 1 during data communication.

  As shown in this figure, the movement amount determination unit 3 continues to acquire the output from the acceleration detection unit 11 (acceleration sensor) (step S210). Next, the movement amount determination unit 3 compares the output from the acceleration sensor with a preset limit value (step S211). At this time, the operation amount determination unit 3 switches the operation based on the magnitude of the output from the acceleration sensor. That is, it is determined whether the output from the acceleration sensor is smaller than the limit value in all three directions (step S212). When the determination result is “false” (No), the operation amount determination unit 3 stops outputting the communication execution signal (step S213). Thereby, the communication part 8 interrupts communication (step S214).

  On the other hand, when it is determined in step S212 that the output from the acceleration sensor is smaller than the limit value in any of the three axis directions (Yes), the operation amount determination unit 3 continues to output the communication execution signal (step S215). ). Thus, the communication unit 8 performs data communication for a predetermined continuation time (step S216). Next, the communication unit 8 determines whether or not the continuable time has elapsed (step S216). When it determines with not having passed (No), the communication part 8 continues communication. On the other hand, when the communication unit 8 determines that the time has elapsed, the control unit 6 next determines whether data to be communicated remains in the storage unit 7 (step S218).

  When it determines with the data which should be communicated remaining (Yes), a process returns to step S210 and the operation amount determination part 3 acquires the output from an acceleration sensor. Thus, the above-described processing is repeated and communication is continued. On the other hand, when the control unit 6 determines that data to be communicated does not remain in the storage unit 7 (No), the process ends.

[Embodiment 5]
A fifth embodiment according to the present invention will be described below. FIG. 15 is a diagram illustrating a configuration of the wireless communication device 1 including the reception signal detection unit 14 as the operation amount detection unit 2. As shown in this figure, the wireless communication device 1 of the present embodiment includes a received signal detection unit 14 as the operation amount detection unit 2 described above. The reception signal detection unit 14 receives a radio signal transmitted from a communication partner device and measures its strength. The reception signal detection unit 14 may be integrated with the communication unit 8 as shown in FIG. FIG. 16 is a diagram illustrating the wireless communication device 1 having a configuration in which the reception signal detection unit 14 and the communication unit 8 are integrated.

  FIG. 17 is a diagram illustrating in which direction the wireless communication device 1 is directed with respect to the television 70 and the reception signal detection unit 14 can receive a beacon signal. In the example of FIG. 17, a beacon signal having directivity is always output by infrared rays from the television 70 which is a communication partner of the wireless communication device 1. Therefore, if the wireless communication device 1 faces the television 70 within a predetermined range, the reception signal detection unit 14 receives a beacon signal. At this time, the reception signal detector 14 measures the reception intensity of the beacon signal and outputs a measurement signal having an amplitude corresponding to the level.

  The level of the beacon signal measured by the reception signal detector 14 changes according to the amount of light received by the beacon signal. Therefore, if the wireless communication device 1 is not facing the television, the reception signal detection unit 14 outputs a measurement signal with a small amplitude. Further, depending on the orientation of the wireless communication device 1 with respect to the television 70, the reception signal detection unit 14 cannot receive a beacon signal at all, and as a result, cannot output a measurement signal at all.

  FIG. 18 is a diagram illustrating the amplitude of various signals when the wireless communication device 1 receives a beacon signal output from the television 70. As shown in this figure, the television 70 outputs a continuous pulsed beacon signal. The reception signal detection unit 14 receives a beacon signal output from the television 70. The amount of light of the beacon signal input to the reception signal detector 14 varies depending on the angle at which the wireless communication device 1 is oriented with respect to the television 70.

  That is, if the wireless communication device 1 is directly facing the television, the light amount of the beacon signal input to the reception signal detection unit 14 increases. If the orientation of the wireless communication device 1 with respect to the television 70 is deviated, the light amount of the beacon signal input to the received signal detector 14 is reduced in proportion to the deviation. If the direction deviates beyond a certain limit, the beacon signal does not enter the reception signal detection unit 14 at all.

  Thereby, the reception signal detection unit 14 outputs a measurement signal having an amplitude (that is, a voltage) corresponding to the angle at which the wireless communication device 1 is facing the television. That is, the reception signal detection unit 14 outputs a high level measurement signal if the wireless communication device 1 is directly facing the television, and outputs a low level measurement signal if the direction is misaligned, and the direction exceeds the limit. If it is shifted, a zero level measurement signal is output.

(Configuration of operation amount determination unit 3)
FIG. 19 is a block diagram illustrating a configuration of the operation amount determination unit 3 that determines whether or not the wireless communication device 1 is operating based on the amplitude of the beacon signal. As described above, in this embodiment, the television 70 outputs a continuous pulsed beacon signal. The operation amount determination unit 3 according to the present embodiment includes a limit value providing unit 4 and a comparison operation unit 5. The comparison operation unit 5 includes an analog comparator 57 and a one-shot multivibrator 58. The oscillation time of the one-shot multivibrator 58 is slightly longer than the cycle of the beacon signal. With this configuration, the operation amount determination unit 3 converts the pulse of the beacon signal into a single signal and outputs it as a communication execution signal.

  The reception signal detection unit 14 outputs a beacon signal having a level corresponding to the angle of the wireless communication device 1 with respect to the television to the analog comparator 57. At this time, the limit value providing unit 4 outputs a predetermined limit level to the analog comparator 57. This limit level is a level representing a state in which the wireless communication apparatus 1 is oriented at an angle at which it can stably communicate with the television, and is a voltage of 2.00 V in the present embodiment. That is, if the level of the signal output from the reception signal detection unit 14 exceeds 2.00 V, the deviation of the direction of the wireless communication device 1 relative to the television 70 is within an allowable range.

  The voltage output by the limit value providing unit 4 is determined according to the performance of the wireless communication device 1. Further, the limit value providing unit 4 outputs this voltage by dividing the voltage of the power source with a resistor or using a battery.

  The analog comparator 57 compares the voltage of the signal input from the reception signal detector 14 with a limit level voltage (2.00 V). At this time, if the measurement signal is larger than 2.00 V, it is determined that the wireless communication device 1 is within the allowable deviation in the direction relative to the television 70, and a pulse signal is output to the one-shot multivibrator 58. When the pulse signal is input, the one-shot multivibrator 58 is triggered to convert the continuous pulse into a single signal and output it to the control unit 6 as a communication execution signal.

  If the signal from the reception signal detection unit 14 is lower than 2.00 V, the analog comparator 57 determines that the deviation of the orientation of the wireless communication device 1 relative to the television 70 is outside the allowable range. As a result, the analog comparator 57 does not output a pulse signal. Therefore, the one-shot multivibrator 58 is not triggered and does not output a communication execution signal.

  FIG. 20 is a diagram illustrating a relationship between the amplitude of the beacon signal output from the reception signal detection unit 14 and the communication execution signal output from the operation amount determination unit 3. As shown in this figure, if the level is 1.00V or 1.05V, the beacon signal is smaller than the limit value of 2.00V. Therefore, the operation amount determination unit 3 determines that the facing angle of the wireless communication device 1 with respect to the television 70 is outside the reference range, and does not output a communication execution signal. On the other hand, when the beacon output is 2.50V, it is larger than the limit value of 2.00V. At this time, the operation amount determination unit 3 determines that the facing angle of the wireless communication device 1 with respect to the television 70 is within an allowable range, and outputs a communication execution signal.

  As described above, when the wireless communication device 1 is shaking, the orientation with respect to the television 70 is not stable, and as a result, the voltage of the beacon signal output from the reception signal detection unit 14 increases and decreases. As a result, the output of the communication execution signal becomes unstable, and as described above, the communication unit 8 does not execute communication.

  Further, in the present embodiment, the amount of received beacon signals in the reception signal detection unit 14 is not limited to the case in which the angle at which the wireless communication device 1 is opposed to the television 70 is shifted, but also when the distance from the television of the wireless communication device 1 is increased. Decrease. Therefore, when the distance from the television 70 is increased, the amount of received light in the reception signal detection unit 14 decreases. As a result, if the beacon signal from the reception signal detection unit 14 becomes smaller than 2.00 V, the operation amount determination unit 3 Determines that the distance between the wireless communication device 1 and the television 70 is outside the communicable range. Thereby, it is possible not to output the beacon pulse to the operation amount determination unit 3 and to output the communication execution signal. As described above, the wireless communication device 1 can control communication not only based on the facing angle with the television 70 but also based on the distance from the television 70.

[Embodiment 6]
A sixth embodiment according to the present invention will be described below.

  In the first embodiment described above, the communication start reception unit 9 outputs a communication start signal when the user presses a button on the wireless communication device 1. In the present embodiment, the communication start accepting unit 9 outputs a communication start signal when detecting a predetermined spatial movement in the wireless communication device 1. For example, when the user shakes the wireless communication apparatus 1 with his hand, the spatial movement is detected.

  FIG. 21 is a block diagram illustrating a configuration of the wireless communication device 1 that starts communication when a predetermined spatial motion is detected. In the example illustrated in FIG. 21, the communication start reception unit 9 detects the spatial movement of the wireless communication device 1 based on the output from the acceleration detection unit 11. The communication start accepting unit 9 can detect the spatial movement of the wireless communication device 1 also based on an output from the angular acceleration detection unit 12 or a signal output from a communication partner device such as the television 70.

  FIG. 22 is a block diagram illustrating a configuration of the operation amount determination unit 3 that outputs a vibration signal to the communication start reception unit 9. As illustrated in FIG. 22, the motion amount determination unit 3 outputs a predetermined vibration signal to the communication start reception unit 9. When determining that an acceleration of a certain value or more is applied to at least one axis in the wireless communication device 1, the movement amount determination unit 3 outputs a vibration signal to the communication start reception unit 9.

  The operation amount determination unit 3 shown in FIG. 22 has a configuration in which a NOR circuit 61 is further added to the operation amount determination unit 3 shown in FIG. Other configurations are the same as those shown in FIG. That is, “0032” is digital data corresponding to 3.33G. This 3.33G is an acceleration at which the wireless communication device 1 can be determined to be stationary. “00FA” is digital data corresponding to 0G (still).

  When the acceleration in at least one direction out of the three axis directions in the wireless communication device 1 exceeds 3.33 G, the motion amount determination unit 3 outputs a vibration signal to the communication start reception unit 9. Specifically, the output from each digital comparator 59 is input to the NOR circuit 61. Thus, the NOR circuit 61 outputs a vibration signal if any one of the 13 inputs of the wireless communication device 13 is at the LOW level.

  When the wireless communication device 1 is placed on a table and is stationary, for example, if the user picks it up, the wireless communication device 1 moves from a stationary position to a certain position. The acceleration generated at this time is detected from the acceleration detector 11, and a signal representing the detected acceleration is output. As described above, this signal is input to the comparison operation unit 5 via the A-D conversion unit 10 and the acceleration data processing unit 13.

  In the comparison operation unit 5, the digital comparator 59 outputs a LOW level if the value of the digital data representing the difference between the acceleration detected by the acceleration detection unit 11 and the acceleration OG is larger than the limit value “0032”. . The NOR circuit 61 outputs a HIGH level as a vibration signal if at least one input from the three digital comparators 59 is a LOW level. That is, the comparison operation unit 5 outputs a HIGH level vibration signal when it is detected that at least one acceleration greater than the limit value is applied to the three axes in the wireless communication device 1.

  When a vibration signal is input while the wireless communication device 1 is stationary, the communication start reception unit 9 determines that the user has picked up the wireless communication device 1 and outputs a communication start signal to the control unit 6. To do. Depending on the use conditions of the wireless communication device 1, the communication start receiving unit 9 may output a communication start signal when the vibration signal is input even once. Alternatively, the communication start signal may be output for the first time when the vibration signal is input a predetermined number of times.

(Process flow)
FIG. 23 is a flowchart illustrating a processing flow when the wireless communication device 1 determines the intention of the user to start communication. In the example of FIG. 23, when it is detected that the vibration of the wireless communication device 1 has occurred three times, the communication start reception unit 9 determines that the user has an intention to start communication. The number of times 3 is determined in advance in the wireless communication device 1. The number of times is not particularly limited, and may be any N times (N is a positive integer).

  As shown in FIG. 23, the communication start acceptance unit 9 first resets the counter (step 310). What the counter represents will be described later. Next, it is determined whether or not the wireless communication device 1 is stationary (step S311). Specifically, the determination is made based on whether or not a communication execution signal from the operation amount determination unit 3 is input for a certain period of time. That is, when the communication execution signal is input for a certain time, it is determined that the wireless communication device 1 is stationary. On the other hand, when the communication execution signal is not input for a certain time, it is determined that the wireless communication device 1 is not stationary. When it is determined that the wireless communication device 1 is not stationary (No), the communication start acceptance unit 9 returns to step 310 and continues the operation of resetting the counter.

  On the other hand, when it is determined in step S311 that the wireless communication device 1 is stationary (Yes), the communication start accepting unit 9 next determines whether or not a vibration signal is input from the operation amount determining unit 3. (Step S312). As described above, when the acceleration detection unit 11 detects a predetermined acceleration of at least one of the three axes in the wireless communication device 1, the motion amount determination unit 3 inputs a vibration signal to the communication start reception unit 9. To do. When no vibration signal is input in step S312, the communication start reception unit 9 waits until a vibration signal is input.

  On the other hand, when it determines with the vibration signal being input in step S312 (Yes), the communication start reception part 9 increases the value of the counter showing the frequency | count of an input of a vibration signal by 1 (step S313). Next, the communication start reception unit 9 determines whether or not the counter value is 3 (step S314). When it is determined that the counter value is 3 (Yes), the communication start receiving unit 9 outputs a communication start signal to the control unit 6 (step S315). Thereby, the control unit 6 performs the communication execution determination process described above.

  When it is determined in step S314 that the counter value is not 3 (No), the communication start receiving unit 9 determines whether or not the input of the vibration signal is continued (step S317). When it is determined that the input of the vibration signal continues (Yes), it waits for the input of the vibration signal to end.

  On the other hand, when it is determined in step S317 that the input of the vibration signal has ended (No), the communication start receiving unit 9 determines whether or not the next vibration signal is input (step S318). When it is determined in step S318 that the next vibration signal is input (Yes), the process returns to step S313, and the communication start reception unit 9 increases the counter value by one. As a result, the communication start reception unit 9 once ends the input of the vibration signal, that is, waits for the next vibration signal to be input after the vibration of the wireless communication apparatus 1 has been stopped, so that the number of times of input of the vibration signal is reached. Count correctly. Further, the processing from step S313 to S318 is repeated until the counter value becomes 3.

  When it is determined in step S318 that no vibration signal is input (No), the communication start receiving unit 9 determines whether or not a predetermined time has elapsed (step S319). At this time, if the predetermined time has not elapsed (No), the process returns to step S318 to determine again whether or not the vibration signal is input.

  On the other hand, when it determines with predetermined time having passed in step S319 (Yes), the communication start reception part 9 resets a counter (step S310). That is, even if the input of the vibration signal is detected once, if a certain period of time has elapsed until the three inputs are counted, the communication start receiving unit 9 determines that the user does not intend to start communication. As a result, the communication start accepting unit 9 resets the counter and restarts the input of the vibration signal.

  With the above processing, the communication start accepting unit 9 can instruct the start of communication without the user pressing the communication start button.

  The movement amount determination unit 3 may output a vibration signal only when the acceleration on a specific axis exceeds a limit value. Further, the motion amount determination unit 3 may output a vibration signal only when any combination of accelerations in the three axes exceeds a limit value. Alternatively, the motion amount determination unit 3 outputs the vibration signal only when a predetermined acceleration exceeds a limit value according to a predetermined axis order, such as acceleration in the X-axis direction for the first time and acceleration in the Y-axis direction for the second time. It may be output.

[Embodiment 7]
A seventh embodiment according to the present invention will be described below.

  The wireless communication apparatus 1 according to the present embodiment interrupts communication when it moves greatly from a certain position even if it is slowly after starting communication. As described above, the wireless communication device 1 according to the fourth embodiment interrupts communication when there is vibration such as camera shake of the wireless communication device 1 after starting communication. That is, during communication, communication is interrupted when acceleration is applied to a predetermined value or more. On the other hand, in this embodiment, communication is controlled not by the magnitude of acceleration during communication, but by the magnitude of movement of the wireless communication apparatus 1 after the start of communication.

(Configuration of wireless communication device 1)
A configuration of the wireless communication device 1 according to the present embodiment will be described. FIG. 24 is a block diagram illustrating a configuration of the wireless communication apparatus 1 including the movement distance calculation unit 15. The wireless communication apparatus 1 shown in this figure further includes a movement distance calculation unit 15 (movement distance calculation means) in addition to the configuration shown in FIG. The movement distance calculation unit 15 calculates the distance that the wireless communication device 1 has moved from the position of the wireless communication device 1 at the time point specified by the control unit 6 to the current position of the wireless communication device 1. Alternatively, the moving distance of the wireless communication device 1 from the time when the communication unit 8 starts communication to the current time is calculated.

  Note that the wireless communication device 1 of the present embodiment may have the configuration shown in FIG. The wireless communication apparatus 1 illustrated in FIG. 30 further includes a movement angle calculation unit 19 in addition to the configuration illustrated in FIG. The movement angle calculation unit 19 illustrated in FIG. 30 calculates a movement angle that is an angle at which the wireless communication device 1 is rotated from the position of the wireless communication device 1 to the current position at the time point designated by the control unit 6. Alternatively, the movement angle of the wireless communication device 1 from the time when the communication unit 8 starts communication to the current time is calculated. Further, as shown in FIG. 30, the movement angle calculation unit 19 includes an angle limit value providing unit 20 and a movement angle determination unit 21.

  In any case, the essence of the operation of the wireless communication device 1 remains unchanged. That is, the wireless communication device 1 controls communication based on the value calculated by the movement distance calculation unit 15 or the movement angle calculation unit 19. Therefore, in the following, the wireless communication apparatus 1 including the movement distance calculation unit 15 illustrated in FIG. 24 will be described in detail. FIG. 25 is a block diagram illustrating a configuration of the movement distance calculation unit 15. As shown in this figure, the moving distance calculating unit 15 includes an integrating unit 16, a distance limit value providing unit 17, and a moving distance determining unit 18 (moving distance determining means).

(Integration unit 16)
The integrating unit 16 includes two integrators 161 and 162 that individually correspond to the three axes. Thereby, the integration unit 16 integrates the output from the acceleration detection unit 11 twice with respect to time for each of the three axes of X, Y, and Z. That is, the moving distance of the wireless communication device 1 is calculated by integrating the acceleration value twice with respect to time.

(Distance limit value providing unit 17)
The distance limit value providing unit 17 outputs, to the analog comparator A 181 and the analog comparator B 182, a predetermined movement limit value indicating the movement distance limit of the wireless communication device 1 as a certain voltage. The distance limit value providing unit 17 obtains this voltage by dividing the power supply voltage or using a battery or the like.

(Movement distance determination unit 18)
The movement distance determination unit 18 includes an analog comparator A 181 and an analog comparator B 182, one for each axis so as to correspond to the three axes described above. That is, a total of three analog comparators A181 and three analog comparators B182 are provided.

  The integrator 162 outputs the calculated value (that is, the moving distance) to each analog comparator A181 and analog comparator B182. The analog comparator A 181 determines the movement distance in the plus direction on one axis of the wireless communication device 1. The analog comparator B 182 determines the movement distance in the minus direction on one axis of the wireless communication device 1.

  When both the output of the analog comparator A 181 and the output of the analog comparator B 182 are at the LOW level, the moving distance determination unit 18 indicates that the moving distance of the wireless communication device 1 is within the limit value, that is, the wireless communication device 1 Determined to be within the communication range.

When the value output by the integration unit 16 is smaller than the distance limit value in all three axes, the movement distance determination unit 18 determines that the movement of the wireless communication device 1 is small and exists within a range where communication with the communication partner is possible. . Thereby, a communication continuation signal is output. If only one axis is greater than the distance limit value 17, it is determined that the wireless communication device 1 has moved greatly and has moved away from the range where communication with the communication partner can be performed.
The distance limit value is determined based on how much the wireless communication device 1 moves out of the communication range when moved in each axial direction. The distance limit value may be a different value for each axis or the same value. In the present embodiment, the value is the same for each axis. That is, for all the axes, when the moving distance of the wireless communication device 1 is smaller than the distance limit value, the moving distance determination unit 18 outputs a communication continuation signal.

(Operation of moving distance calculation unit 15)
The operation of the movement distance calculation unit 15 will be described in detail below. As described above, when the acceleration of the wireless communication device 1 is 0 G (still), the acceleration detection unit 11 outputs 2.50 V. The acceleration detection unit 11 adds or subtracts 0.15 V per 1 G to this value according to the acceleration direction. Below, operation | movement of the movement distance calculation part 15 when the radio | wireless communication apparatus 1 moves to a certain axial direction is demonstrated. The same applies to the other two axes.

  As described above, the integrating unit 16 calculates the moving distance of the wireless communication device 1 by integrating the output of the acceleration detecting unit 11 twice with respect to time. Specifically, the integrator 161 integrates the output of the acceleration detection unit 11 once. As a result, the integrator 161 outputs a voltage corresponding to the speed of the wireless communication device 1. The integrator 161 outputs a positive voltage or a negative voltage according to the acceleration direction of the wireless communication device 1 around 0V. The integrator 161 outputs a voltage to the integrator 162. Thereby, the integrator 162 calculates the moving distance of the wireless communication device 1 by integrating the voltage corresponding to the speed. The integrator 162 outputs the voltage to the analog comparator A 181 and the analog comparator B 182.

  The analog comparator A 181 compares the plus direction distance of the wireless communication device 1 with the plus direction movement limit value (0.20 V). On the other hand, the analog comparator B 182 compares the minus direction distance of the wireless communication device 1 with the minus direction movement limit value (−0.20 V).

  FIG. 26 is a diagram illustrating the relationship between the acceleration detected by the acceleration detection unit 11, the movement distance calculated by the integration unit 16, and the voltage corresponding to the movement distance. As shown in FIG. 26, when the voltage output from the integrator 162 is 0.20 V or less, the analog comparator A181 outputs a LOW level. On the other hand, when the voltage output from the integrator 162 is −0.20 V or more, the analog comparator B 182 outputs a LOW level. That is, only when the outputs of the integrators 162 are both +0.20 V or less and −0.20 V or more, the outputs of the analog comparator A 181 and the analog comparator B 182 are simultaneously LOW.

  The outputs of the analog comparator A 181 and the analog comparator B 182 are both input to the corresponding NOR circuit 183. At this time, the NOR circuit outputs a HIGH level to the AND circuit 184.

  This ± 0.20V is a limit value related to the moving distance of the wireless communication apparatus 1 in the present embodiment. These voltages all correspond to a moving distance of 20 cm based on the characteristics of the integrating unit 16. The relationship between the voltage and the distance value in the integrating unit 16 may be arbitrary. In the present embodiment, the integrator 16 outputs 1V when the moving distance of the wireless communication device 1 is 98 cm.

  FIG. 27 is a diagram illustrating the relationship between the acceleration of the wireless communication device 1 detected by the acceleration detection unit 11, the movement distance of the wireless communication device 1 calculated by the integration unit 16, and the voltage corresponding to this distance. As shown in this figure, when the acceleration of the wireless communication device 1 is 0.1 G, the acceleration detection unit 11 outputs 2.50 V (when stationary) ± 0.015 V to the movement distance calculation unit 15. Similarly, if the acceleration is 0.2G, 2.50V (when stationary) ± 0.030V is output, and if the acceleration is 0.3G, 2.50V (when stationary) ± 0.045V is output. . Here, the sign of ± is determined by the acceleration direction of the wireless communication device 1.

  According to physical facts relating to the wireless communication device 1 according to the present embodiment, for example, when an acceleration of 0.1 G is applied, the wireless communication device 1 accelerates for 0.5 seconds and moves about 12.25 cm. On the other hand, if it is 0.3G, it accelerates for 0.1 second and moves about 1.47 cm. Such a relationship can be determined in advance based on the output voltage of the acceleration detection unit 11, and is set in advance in the wireless communication device 1.

(Relationship between acceleration and voltage)
28 shows the acceleration of the wireless communication device 1 detected by the wireless communication device 1, the voltage corresponding to this acceleration, the voltage corresponding to the moving speed of the wireless communication device 1 calculated by the integrator 161, and the integrator 162. It is a figure which shows the relationship with the voltage corresponded to the movement distance of the calculated radio | wireless communication apparatus. In the example of this figure, the wireless communication device 1 has a constant acceleration of 0.1 G, 0.2 G, or 0.3 G, and every 0.5 seconds, respectively, in the order and direction shown in the “Acceleration” column in FIG. And has been accelerated by. The acceleration applied to the wireless communication device 1 is constant within each 0.5 second time. Therefore, the output of the acceleration detector 11 is a constant voltage for 0.5 seconds.

  For example, when the acceleration of the wireless communication device 1 is 0.1 G in the plus direction on a certain axis, the acceleration detection unit 11 adds 0.015 V to 2.50 V indicating that the wireless communication device 1 is stationary, and 2 Output as 515V.

  The integrator 161 integrates the output voltage of the acceleration detection unit 11 with respect to time, and converts it into a voltage corresponding to the moving speed of the wireless communication device 1. In the present embodiment, since the acceleration is constant for each 0.5 second, the output voltage of the integrator 161 is a triangular wave.

  The integrator 161 outputs a voltage corresponding to the moving speed of the wireless communication device 1 as 1 V when the wireless communication device 1 is accelerated at 0.1 G for 1 second. At this time, the speed equivalent voltage is converted as shown in FIG. When the output of the integrator 161, that is, the speed equivalent voltage is integrated by the integrator 162 with respect to time, a quadratic curve is obtained as shown in FIG. This is the output of the integrator 162, which is a voltage corresponding to the moving distance of the wireless communication device 1.

  In the example of FIG. 28, when the output of the integrator 162 is 0V, the moving distance of the wireless communication device 1 is zero. In the present embodiment, when the wireless communication device 1 is accelerated at a constant acceleration of 0.1 G for 1 second, that is, when the moving distance of the wireless communication device 1 is 49 cm, the integrator 162 outputs a voltage of 0.5V. . The output voltage 1V by the integrator 162 corresponds to 98 cm. Further, when 5 seconds have elapsed since the wireless communication device 1 started moving, the output of the integrator 162 is 0.25V. This means that the wireless communication device 1 has moved 24.5 cm from the original position.

  The characteristics of the integrator 161 and the integrator 162 are not limited to those described above. That is, it may be determined as appropriate according to the use conditions of the wireless communication device 1.

  As described above, the output voltage of the integrator 162 corresponds to the moving distance of the wireless communication device 1. The travel distance determination unit 18 compares the output voltage of the integrator 162 with the voltage corresponding to the distance limit value. The distance limit value determines that the wireless communication device 1 has moved out of the communication range once the communication starts. The wireless communication device 1 is set in advance based on whether or not to do so.

In the present embodiment, when the wireless communication device 1 moves 20 cm, it is assumed that the wireless communication device 1 is out of the communicable range. As shown in FIG. 28, in order for the wireless communication apparatus 1 to move a distance of 20 cm, when acceleration 0.1 G is continuously applied, the acceleration is about 0.638 seconds, 0.2 G is about 0.452 seconds, and 0 .3G requires about 0.369 seconds If the absolute value of the distance equivalent voltage is 0.20 V or less, the moving distance of the wireless communication device 1 is 20 cm or less regardless of the acceleration. The analog comparator A 181 and the analog comparator B 182 of the movement distance determination unit 18 compare the two voltages. If the distance-equivalent voltage of all axes is 0.20 V or less, the movement distance determination unit 18 is located within a range that does not hinder the continuation of communication even if the wireless communication device 1 moves after the start of communication. judge. At this time, the movement distance determination unit 18 outputs a communication continuation signal to the control unit 6. At this time, the control unit 6 instructs the communication unit 8 to continue communication. Therefore, the communication unit 8 continues communication.

(Example of processing)
Communication processing in the wireless communication apparatus 1 including the movement distance calculation unit 15 will be described below. After the user operates the communication start button, the wireless communication device 1 starts communication after the hand shake is settled. In the present embodiment, the following control is further performed. First, before performing communication, each unit that executes distance measurement is initialized. Specifically, the settings of integrators 161 and 162 are returned to the initial values, and the output is set to 0V.

  The integrator 161 of the integration unit 16 integrates the output of the acceleration detection unit 11 with respect to time, and calculates the moving speed of the wireless communication device 1. Further, the integrator 162 integrates the speed, which is the output of the integrator 161, with respect to time, and the moving distance of the wireless communication device 1 after the start of communication is output as a voltage.

  In the movement distance determination unit 18, the analog comparator A 181 and the analog comparator B 182 compare the output voltage of the integrator 162 with the movement limit value provided from the distance limit value providing unit 17. Thereby, it is determined whether the moving distance of the wireless communication apparatus 1 is within a predetermined range. If the moving distance of the wireless communication device 1 is less than or equal to the limit value (if the output voltage of the integrator 162 is smaller than the limit value voltage), the moving distance is within a predetermined range. Therefore, the movement distance determination unit 18 outputs a communication continuation signal indicating that communication may be continued to the control unit 6. As a result, the control unit 6 instructs the communication unit 8 to continue communication, and the communication unit 8 continues communication.

  If the moving distance of the wireless communication device 1 exceeds the limit value, the moving distance determination unit 18 determines that the communication unit 8 cannot communicate. At this time, the wireless communication device 1 repeats the measurement of the movement distance of the wireless communication device 1 and the comparison between the measured movement distance and the movement limit value within a certain time. When it is determined that the movement distance of the wireless communication apparatus 1 does not become the limit value within a certain time after the measurement of the movement distance is initialized, the movement distance determination unit 18 determines that the position of the wireless communication apparatus 1 is the original position. It is determined that it has not returned to. At this time, the movement distance determination unit 18 does not output a communication continuation signal to the control unit 6. The control unit 6 instructs the communication unit 8 to continue communication when a communication continuation signal is input and the acceleration of the wireless communication device 1 is equal to or less than a predetermined value. Thereby, the communication part 8 continues communication.

(Process flow)
The above process will be described below with reference to FIG. FIG. 29 is a flowchart for explaining the flow of processing in the wireless communication apparatus 1.

  If there is no camera shake after the user presses the communication start button, the wireless communication device 1 initializes each unit that executes the movement distance measurement (step S410). Specifically, integrators 161 and 162 are reset, and their outputs are set to 0V. Next, the acceleration detection part 11 acquires the output of an acceleration sensor, and outputs it to the movement distance calculation part 15 (step S411). The integrating unit 16 in the moving distance calculating unit 15 integrates the output voltage from the acceleration detecting unit 11 twice with respect to time, and outputs a voltage corresponding to the moving distance of the wireless communication device 1 to the moving distance determining unit 18 (Step S1). S412).

  The travel distance determination unit 18 compares the travel distance equivalent voltage output from the integration unit 16 with the travel limit value provided by the distance limit value providing unit 17 (step S413). At this time, the movement distance determination unit 18 determines whether or not the movement distance of the wireless communication device 1 is smaller than the movement limit value in any of the three axes (step S414).

  In step S414, when it is determined that the moving distance of the wireless communication device 1 is larger than the moving limit value (No), the control unit 6 measures the elapsed time since each unit that performs distance measurement is initialized ( Step S415). Next, the control unit 6 determines whether or not the measured elapsed time exceeds a predetermined time limit (step S416).

  When it is determined in step S416 that the measured elapsed time exceeds the predetermined time limit (Yes), the control unit 6 has changed its position greatly after the wireless communication device 1 starts communication. Therefore, it is determined that communication is impossible, and the process ends. On the other hand, if the measured elapsed time does not exceed the time limit in step S416, the process returns to step S411 again. That is, until it can be determined that the moving distance of the wireless communication apparatus 1 falls within the predetermined range, in the moving distance calculation unit 15, the integrating unit 16 measures the moving distance, and then the moving distance determining unit 18 detects the moving distance and the moving limit value. Repeat the comparison.

  Even if the movement distance of the wireless communication apparatus 1 is large at a certain moment, if the user returns the position of the wireless communication apparatus 1 to the original position, the movement distance equivalent voltage output by the integrating unit 16 becomes smaller than the movement limit value. At this time, in step S414, the movement distance determination unit 18 determines that the movement distance of the wireless communication device 1 is smaller than the movement limit value in any of the three axis directions (Yes). Therefore, the movement distance determination unit 18 outputs a communication continuation signal to the control unit 6 (step S417).

  Since the processes in steps S418 to S420, step S421, step S423, and step S423 are the same as the processes in the fourth embodiment, description thereof is omitted.

  Finally, the control unit 6 determines whether data to be communicated remains in the storage unit 7 (step S425). If it remains, the process returns to step S411. Further, the process returns to step S411 even after step S421 in which the acceleration increases due to camera shake or the like during the communication and the communication unit 8 interrupts the communication. At these times, the communication unit 8 has not completed communication. In addition, the moving distance of the wireless communication device 1 after the communication unit 8 starts communication is not reset, but is accumulated in the storage unit 7.

  Even if only the instantaneous magnitude of the acceleration is determined, the moving distance determination unit 18 cannot detect that the position of the wireless communication device 1 has shifted. That is, even if the acceleration is small, if the acceleration time continues for a long time, the moving distance of the wireless communication device 1 becomes large and deviates from the initial communication position. Therefore, since the movement distance determination unit 18 detects such movement, the control unit 6 can appropriately control communication.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible in the range shown to the claim. In other words, embodiments obtained by combining technical means appropriately changed within the scope of the claims are also included in the technical scope of the present invention.

(Program and recording medium)
Finally, each block included in the wireless communication device 1 may be configured by hardware logic. Alternatively, it may be realized by software using a CPU (Central Processing Unit) as follows.
That is, the wireless communication device 1 includes a CPU that executes a command of a control program that implements each function, a ROM (Read Only Memory) that stores the control program, and a RAM (Random Access) that expands the control program into an executable format. Memory) and a storage device (recording medium) such as a memory for storing the control program and various data.
With this configuration, the object of the present invention can be achieved by a predetermined recording medium.
The recording medium only needs to record the program code (execution format program, intermediate code program, source program) of the control program of the wireless communication apparatus 1 which is software for realizing the above-described functions so as to be readable by the computer. This recording medium is supplied to the wireless communication apparatus 1. Thereby, the wireless communication device 1 (or CPU or MPU) as a computer may read and execute the program code recorded on the supplied recording medium.
The recording medium that supplies the program code to the wireless communication device 1 is not limited to a specific structure or type. That is, the recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. A disk system, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.
Moreover, even if the wireless communication device 1 is configured to be connectable to a communication network, the object of the present invention can be achieved. In this case, the program code is supplied to the wireless communication device 1 via the communication network. This communication network is not limited to a specific type or form as long as it can supply the program code to the wireless communication apparatus 1. For example, the Internet, an intranet, an extranet, a LAN, an ISDN, a VAN, a CATV communication network, a virtual private network, a telephone line network, a mobile communication network, a satellite communication network, or the like may be used.
The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, in the case of wired communication such as IEEE 1394, USB (Universal Serial Bus), power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, etc., infrared rays such as IrDA and remote control, Bluetooth (registered trademark), 802. 11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, etc. can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

(Other configurations)
In addition, this invention is realizable also as a structure as shown below.

(First configuration)
In a communication device that communicates data with other devices, the movement amount measuring means for detecting the spatial movement of the own device as quantitative information, the quantitative information detected by the movement amount measuring means, and the reference information A communication device, comprising: a comparison unit that outputs a predetermined signal based on the comparison result of the above; and a communication unit that performs data communication with another device based on the signal from the comparison unit.

(Second configuration)
The movement amount measuring means is an acceleration detecting means for detecting an acceleration of the own apparatus, and the comparing means compares the detected acceleration of the own apparatus with a predetermined acceleration, and the acceleration of the own apparatus is determined. The communication apparatus according to the first configuration, wherein a communication execution signal for instructing execution of communication is output when the acceleration is equal to or less than the acceleration.

(Third configuration)
The movement amount measuring means is an angular acceleration detecting means for detecting the angular acceleration of the own apparatus, and the comparing means compares the detected angular acceleration of the own apparatus with a predetermined angular acceleration, The communication apparatus according to the first configuration, wherein a communication execution signal that instructs execution of communication is output when the acceleration is equal to or less than the predetermined angular acceleration.

(Fourth configuration)
The operation amount measurement means is a reception signal detection means for detecting a reception level of a signal from a communication partner, and the comparison means compares a reception level of the detected reception signal with a predetermined level to obtain a reception signal. The communication apparatus according to the first configuration, wherein a communication execution signal for instructing execution of communication is output when the reception level of the communication becomes equal to or higher than the predetermined level.

(Fifth configuration)
The communication device according to the second to fourth configurations, wherein the communication unit starts data communication when the communication execution signal is output from the comparison unit.

(Sixth configuration)
Communication start accepting means for accepting a user's operation and notifying the communication device of a communication start signal is provided, and data communication is started when the communication start signal and the communication execution signal are aligned. The communication device according to any one of 2 to 5 configurations.

(Seventh configuration)
The communication apparatus according to the sixth configuration, wherein the communication start reception unit outputs a communication start signal based on a button operation on the communication apparatus.

(Eighth configuration)
The communication apparatus according to the sixth configuration, wherein the communication start reception unit outputs a communication start signal based on a predetermined spatial movement of the own apparatus.

(Ninth configuration)
The communication apparatus according to any one of the second to eighth configurations, wherein the communication apparatus interrupts communication or continues communication according to the presence or absence of the communication execution signal during communication.

(Tenth configuration)
The communication apparatus further includes a movement distance calculation unit that calculates a movement distance of the own apparatus based on an output of the acceleration detection unit, and the movement distance from the position at the start of communication calculated by the movement distance calculation unit is a reference. The communication apparatus according to the second configuration, wherein a communication continuation signal for instructing continuation of communication is output when the value is smaller than a certain value (11th configuration)
The communication apparatus further includes a movement angle calculation unit that calculates a movement angle of the own apparatus based on an output of the angular acceleration detection unit, and the movement angle from the position at the start of communication calculated by the movement angle calculation unit is a reference. The communication apparatus according to the third configuration, which outputs a communication continuation signal instructing continuation of communication when the value is smaller than the value (Twelfth configuration)
The communication apparatus according to the tenth or eleventh configuration, wherein the communication apparatus interrupts communication or continues communication according to the presence or absence of the communication execution signal and the communication continuation signal during communication. (13th configuration)
The communication device according to any one of the first to twelfth configurations, wherein the communication means performs communication using radio waves (fourteenth configuration).
The communication device according to any one of the first to twelfth configurations, wherein the communication unit performs communication using infrared rays.

(15th configuration)
The communication apparatus according to any one of the first to fourteenth configurations, wherein the communication apparatus is a mobile phone.

(Sixteenth configuration)
15. The communication apparatus according to any one of the first to fourteenth configurations, wherein the communication apparatus is a television remote controller.

(17th configuration)
A communication apparatus control program having an acceleration detection means for detecting an acceleration of the own apparatus, the step of acquiring the acceleration detected by the acceleration detection means as needed, the step of comparing the acquired acceleration with a reference value, and the acceleration A control program comprising: determining whether or not is greater than a reference value; and instructing communication execution only when the acceleration is smaller than a reference value.

(18th configuration)
A control program for a communication apparatus having an acceleration detection means for detecting an acceleration of the own apparatus, the step of acquiring the acceleration detected by the acceleration detection means as needed, the step of calculating a movement distance from the acquired acceleration, Comparing a moving distance with a reference value, determining whether the moving distance is larger than a reference value, and instructing communication execution only when the moving distance is smaller than a reference value A control program characterized by that.

(19th configuration)
A control program for a communication device having an angular acceleration detection means for detecting an angular acceleration of the device itself, the step of acquiring the angular acceleration detected by the angular acceleration detection means as needed, and comparing the acquired angular acceleration with a reference value A control program comprising: a step; determining whether the angular acceleration is greater than a reference value; and instructing communication execution only when the angular acceleration is smaller than a reference value.

(20th configuration)
A control program for a communication device having an angular acceleration detection means for detecting an angular acceleration of the device itself, the step of acquiring the angular acceleration detected by the angular acceleration detection means as needed, and a movement angle moved from the acquired angular acceleration. A step of calculating, a step of comparing the calculated movement angle with a reference value, a step of determining whether or not the movement angle is larger than a reference value, and an instruction to execute communication only when the movement angle is smaller than a reference value A control program.

  The present invention can be used as various devices having a function of transmitting infrared rays. Therefore, any device can be used as long as it performs a certain task by transmitting infrared rays, such as a remote controller, a cellular phone, and a portable terminal device.

It is a block diagram which shows the principal part structure of the radio | wireless communication apparatus which concerns on this invention. It is a block diagram which shows the structure of the radio | wireless communication apparatus provided with the acceleration detection part as a specific example of an operation amount detection part. It is a block diagram which shows the structure of the radio | wireless communication apparatus provided with the angular acceleration detection part as a specific example of an operation amount detection part. It is a block diagram which shows the structure of the radio | wireless communication apparatus which performs the comparison of acceleration like software. It is a block diagram which shows the detail of an operation amount determination part. It is a block diagram which shows the other structure of an operation amount determination part. It is a block diagram which shows the operation amount determination part of the structure which compares the acceleration and performs the comparison like software. The relationship between the acceleration of the wireless communication device detected by the acceleration detection unit, the voltage output by the wireless communication device, the digital data converted by the AD converter, and the value notified to the control unit by the operation amount determination unit is shown. FIG. It is a figure which shows the example of the acceleration limit value which the limit value provision part has stored in the inside. The relationship between the acceleration of the wireless communication device detected by the acceleration detection unit, the voltage output by the acceleration detection unit, the difference from the stationary state of the wireless communication device, the limit value of acceleration, and the determination result by the operation amount determination unit FIG. It is a figure which shows the relationship between the value of the acceleration which an acceleration detection part detects, and the range which can determine with the radio | wireless communication apparatus being still. It is a flowchart explaining the flow of the communication processing which a radio | wireless communication apparatus performs. It is a flowchart explaining the flow of the communication processing which a radio | wireless communication apparatus performs. It is a flowchart explaining the flow of the communication continuation determination process which a radio | wireless communication apparatus performs during data communication. It is a figure which shows the structure of the radio | wireless communication apparatus provided with the received signal detection part as an operation amount detection part. It is a figure which shows the radio | wireless communication apparatus of the structure by which the received signal detection part and the communication part were integrated. It is a figure which shows which received signal detection part can receive a beacon signal when a radio | wireless communication apparatus has faced with respect to the television. It is a figure showing the amplitude of various signals when a wireless communication apparatus receives the beacon signal which a television outputs. It is a block diagram which shows the structure of the operation amount determination part which determines whether the radio | wireless communication apparatus is operate | moving based on the amplitude of a beacon signal. It is a figure which shows the relationship between the amplitude of the beacon signal which a received signal detection part outputs, and the communication execution signal which an operation amount determination part outputs. It is a block diagram which shows the structure of the radio | wireless communication apparatus which starts communication when a predetermined spatial motion is detected. It is a block diagram which shows the structure of the operation amount determination part which outputs a vibration signal to a communication start notification part. It is a flowchart which shows the flow of a process when a radio | wireless communication apparatus determines the intention of the communication start by a user. It is a block diagram which shows the structure of the radio | wireless communication apparatus provided with the movement distance calculation part. It is a block diagram which shows the structure of a movement distance calculation part. It is a figure which shows the relationship between the acceleration which the acceleration detection part detected, the movement distance which the integration part calculated, and the voltage equivalent to a movement distance. It is a figure which shows the relationship between the acceleration of the wireless communication apparatus which the acceleration detection part detected, the movement distance of the wireless communication apparatus which the integration part calculated, and the voltage equivalent to this distance. The acceleration of the wireless communication device detected by the acceleration detector, the voltage corresponding to this acceleration, the voltage corresponding to the moving speed of the wireless communication device calculated by the integrator, and the moving distance of the wireless communication device calculated by the integrator It is a figure which shows the relationship with the corresponding voltage. It is a flowchart explaining the flow of the process in a radio | wireless communication apparatus. It is a figure which shows the structure of the radio | wireless communication apparatus provided with the movement angle calculation part. It is a figure explaining the problem of camera shake in the radio | wireless communication apparatus of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wireless communication apparatus 2 Operation amount detection part (Operation amount detection means)
3. Motion amount determination unit (motion amount determination means)
4 limit value providing unit 5 comparison operation unit 6 control unit 7 storage unit 8 communication unit 9 communication start receiving unit (communication start receiving unit)
DESCRIPTION OF SYMBOLS 10 AD conversion part 11 Acceleration detection part 12 Angular acceleration detection part 13 Acceleration data processing part 14 Received signal detection part 16 Integration part 15 Movement distance calculation part (movement distance calculation means)
17 distance limit value providing unit 18 moving distance determining unit (moving distance determining means)
19 Movement angle calculation unit (movement angle calculation means)
20 angle limit value providing unit 21 moving angle determining unit (moving angle determining means)
51 Analog Comparator A
52 Analog Comparator B
53 NOR circuit 54 AND circuit 55 Digital comparator 56 AND circuit 59 Digital comparator 60 AND circuit 61 NOR circuit 161 Integrator 162 Integrator 101 A-D converter 181 Analog comparator A
182 Analog comparator B
183 NOR circuit 184 AND circuit

Claims (16)

In a wireless communication apparatus provided with a communication means for communicating data by a wireless signal having directivity,
A communication start receiving means for receiving an input of a communication start instruction by a user;
An operation amount detecting means for detecting a predetermined operation amount representing a spatial movement of the wireless communication device;
An operation amount determining means for determining whether or not the operation amount is smaller than a predetermined reference amount;
The communication means is
After the communication start accepting means accepts the input of the communication start instruction,
When the operation amount determining means determines that the operation amount is smaller than the reference amount,
A wireless communication apparatus which starts communication of the data. The wireless communication device according to claim 1 , wherein the movement amount detection unit detects an acceleration of the wireless communication device as the movement amount. The wireless communication apparatus according to claim 1 , wherein the movement amount detection unit detects angular acceleration around a predetermined axis in the wireless communication apparatus as the movement amount. The operation amount detecting means detects a level of a radio signal transmitted from a communication partner as the operation amount,
The communication means is
2. The wireless communication according to claim 1 , wherein when the operation amount determination unit determines that the level of a wireless signal transmitted from the communication partner is higher than a predetermined reference level, the data is communicated. apparatus. The communication start acceptance means is
The wireless communication apparatus according to claim 1, wherein pressing of a predetermined button provided in the wireless communication apparatus is accepted. In a wireless communication apparatus provided with a communication means for communicating data by a wireless signal having directivity,
An operation amount detecting means for detecting a predetermined operation amount representing a spatial movement of the wireless communication device;
An operation amount determination means for determining whether or not the operation amount is smaller than a predetermined reference amount;
A communication start receiving means for receiving an input of a communication start instruction when detecting a predetermined spatial movement of the wireless communication device;
The communication means is
After the communication start accepting unit accepts the input of the communication start instruction, when the operation amount determining unit determines that the operation amount is smaller than the reference amount, data communication is started. Wireless communication device. In a wireless communication apparatus provided with a communication means for communicating data by a wireless signal having directivity,
An operation amount detecting means for detecting a predetermined operation amount representing a spatial movement of the wireless communication device;
An operation amount determining means for determining whether or not the operation amount is smaller than a predetermined reference amount;
The communication means is
When the operation amount determining means determines that the operation amount is smaller than the reference amount, the data is communicated,
A wireless communication apparatus that interrupts communication when the operation amount determination unit determines that the operation amount is greater than the reference amount during data communication. In a wireless communication apparatus provided with a communication means for communicating data by a wireless signal having directivity,
An operation amount detection means for detecting acceleration in the wireless device as a predetermined operation amount representing a spatial movement of the wireless communication device;
A moving distance calculating means for calculating a moving distance of the wireless communication device based on the acceleration detected by the movement amount detecting means;
A moving distance determining means for determining whether the moving distance from the time when the communication means starts communication to the current time calculated by the moving distance calculating means is shorter than a predetermined reference distance; And
The communication means is
A wireless communication apparatus, wherein when the moving distance determining means determines that the moving distance is shorter than the reference distance, data communication is continued. In a wireless communication apparatus provided with a communication means for communicating data by a wireless signal having directivity,
As a predetermined movement amount representing a spatial movement of the wireless communication device, an operation amount detection means for detecting angular acceleration around a predetermined axis in the wireless communication device;
A movement angle calculation means for calculating a movement angle of the wireless communication device based on the angular acceleration detected by the movement amount detection means;
A movement angle determination unit that determines whether or not the movement angle calculated by the movement angle calculation unit from the time when the communication unit starts communication until the current time is smaller than a predetermined reference angle; And
The communication means is
A wireless communication apparatus, wherein data communication is continued when the movement angle determination means determines that the movement angle is smaller than the reference angle. The wireless communication apparatus according to claim 1 , wherein the communication unit performs communication using infrared rays. The wireless communication apparatus according to claim 1 , wherein the communication unit performs communication using radio waves. The wireless communication apparatus according to claim 1 , wherein the wireless communication apparatus is a mobile phone. The wireless communication apparatus according to claim 1 , wherein the wireless communication apparatus is a remote controller for operating a television. In a wireless communication method executed by a wireless communication device that communicates data using a wireless signal having directivity,
Receiving a communication start instruction input by a user;
An operation amount detecting step for detecting a predetermined operation amount representing a spatial movement of the wireless communication device;
An operation amount determination step for determining whether or not the operation amount is smaller than a predetermined reference amount;
And a communication step of communicating the data when the operation amount is determined to be smaller than the reference amount after receiving the input of the communication start instruction. Wireless communication method. A wireless communication program for operating the wireless communication device according to any one of claims 1 to 13, a wireless communication program for causing a computer to function as each means described above. A computer-readable recording medium in which the wireless communication program according to claim 15 is recorded.

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