JP2012182592A - Portable radio device, determination method, control method, program, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for determining a method of holding a portable radio device by a user without specially installing a temperature sensor in the portable radio device.SOLUTION: A portable phone terminal 1 comprises: antennas 11-15; first-fifth transmitting and receiving parts 31-35 which measure receiving intensity of the antennas 11-15; an operation determination part 51 which detects a specific operation by a user; and a holding method determination part 60 which compares a first receiving intensity measured by the first-fifth transmitting and receiving parts 31-35 before the operation determination part 51 detects a specific operation with a second receiving intensity measured by the first-fifth transmitting and receiving parts 31-35 after the operation determination part 51 detects the specific operation to determine a method of holding the portable phone device by the user.

Description

  The present invention relates to a portable wireless device, and particularly to a technique for determining how a user holds a portable wireless device.

  An antenna used for wireless communication changes (deteriorates) in radiation characteristics when a human body or metal approaches. Therefore, for example, in a portable wireless device that a user uses by hand, such as a mobile phone terminal, the antenna is preferably disposed in a place where it is difficult for a human body to contact. However, such portable wireless devices are often required to arrange many antennas in a small space in response to the trend toward miniaturization of multifunctional functions, and all antennas are arranged in places where human bodies are difficult to contact. It is difficult.

  In order to solve this problem, a technique for varying the matching with the antenna has been developed so as to suppress the deterioration of the antenna characteristics at the time of human contact (for example, Patent Document 1). Here, the amount of degradation of the antenna characteristics varies depending on how the user holds the portable wireless device. Therefore, in order to effectively suppress the deterioration of the antenna characteristics, it is preferable to grasp how the portable wireless device is held. For example, in the technique described in Patent Document 1, a plurality of temperature sensors are mounted in a portable wireless device to determine contact (how to hold) of the human body.

JP 2008-131516 A (released on June 5, 2008)

  However, the portable wireless device described in Patent Document 1 needs to include a temperature sensor in order to determine how the user holds the device. Therefore, the portable wireless device described in Patent Document 1 has a problem that the number of parts increases and the cost also increases. Therefore, there is a strong demand for a technique for discriminating how to hold the portable radio apparatus at a low cost. In addition, with such a technique, the portable wireless device can be applied to various uses other than the suppression of the deterioration of the antenna characteristics during human contact.

  The present invention has been made in view of the above-described problems, and provides a technique for determining how a user holds his / her own device without installing a temperature sensor or the like in a portable wireless device. The main purpose is to do.

  In order to solve the above problems, a portable wireless device according to the present invention includes an antenna, a reception intensity measurement unit that measures the reception intensity of the antenna, an operation detection unit that detects a specific operation by a user, and the operation detection A first received intensity measured by the received intensity measuring means before the means detects the specific operation, and a second received intensity measured by the received intensity measuring means after the operation determining means detects the specific operation. It is characterized by having a holding method discriminating means for comparing the received strength with the user and discriminating how the user holds the device.

  The received power of the antenna in the portable wireless device changes depending on the human body contact state, that is, how the user holds the device, and changes depending on the surrounding environment and fading. At this time, if only the change caused by the human body contact among the changes in the received power of the antenna can be detected, the holding method can be determined based on the detected change. For example, the correspondence relationship between the change in the received power of the antenna due to human body contact and the way the user holds the device may be examined in advance, and the holding method corresponding to the detected change may be obtained.

  According to said structure, the portable radio | wireless apparatus which concerns on this invention detects specific operation by a user, and compares the said reception power before and after detecting the said specific operation. Thereby, the portable wireless device according to the present invention detects the change in the received power before and after the specific operation. Here, the specific operation by the user is always performed in a state where the user has the portable wireless device. Before and after the specific operation, the ambient environment and fading do not change greatly in the normal environment, and momentary fluctuations associated with the passage of an object rarely occur. It is very instantaneous compared to time and can easily be ignored.

  Therefore, by detecting the change in the received power before and after the specific operation, the change due to the influence of the surrounding environment, fading, etc. is excluded from the change in the received power of the antenna, and the change caused by human contact Only can be detected. Then, by determining the holding method corresponding to the change caused by the detected human body contact, it is possible to determine the user's own holding method without installing a temperature sensor or the like.

  The portable wireless device according to the present invention adjusts the matching between the antenna and a transmission / reception circuit connected to the antenna according to the holding method determined by the holding method determination unit, and transmits power of the portable wireless device. It is preferable to include a control unit that controls at least one selected from the group consisting of: adjustment of the reception gain of the portable wireless device, and adjustment of the user interface of the portable wireless device.

  According to the above configuration, the portable radio apparatus adjusts transmission / reception circuit matching for improving matching with the antenna, adjustment of transmission power, adjustment of reception gain, user interface according to the determined holding method. Perform control such as adjustment. Thereby, appropriate control can be performed using the determined holding method. For example, by adjusting the matching with the antenna according to the determined holding method, the portable wireless device can suppress the deterioration of the antenna caused by the user holding the device.

  The portable wireless device according to the present invention preferably includes a plurality of the antennas.

  According to the above configuration, the portable wireless device has a plurality of antennas. Thereby, since it is possible to detect a change in received power caused by human body contact (gripping of the portable wireless device by the user) at a plurality of antennas, it is possible to acquire more information about the holding method. Thereby, the holding method can be determined with higher accuracy.

  The portable wireless device according to the present invention includes a deterioration amount recording unit that records a predetermined holding method and a deterioration amount of the reception intensity corresponding to the predetermined holding method in advance, and determines the holding method. The means compares the amount of change between the first received strength and the second received strength with the deterioration amount recorded in the deterioration amount recording means, and determines how the user holds the device. It is preferable to do.

  According to the above configuration, the deterioration amount recording means indicates the amount of deterioration of the received power of the antenna corresponding to a predetermined way of holding (for example, holding with the left hand and holding with the right hand). Recorded in association with how to hold. Thereby, by referring to the information recorded in the deterioration amount recording means, the portable radio apparatus can easily determine the holding method corresponding to the change in the received power of the antenna.

  In the portable wireless device, the degradation amount recording means includes at least the degradation amount of the reception intensity when the user has the device with the left hand and the reception when the user has the device with the right hand. It is preferable that the strength deterioration amount is recorded in advance.

  According to the above configuration, the degradation amount recording means includes at least the degradation amount of the reception intensity when the user has his / her device with the left hand and the reception when the user has the own device with the right hand. Since the strength deterioration amount is recorded in advance, it is possible to successfully determine typical ways of holding such as how the user holds the device with the left hand and how the user holds the device with the right hand.

  In the portable wireless device according to the present invention, the specific operation is preferably an operation for returning the portable wireless device from a standby state.

  According to said structure, in order to use the said portable radio | wireless apparatus, the user needs to perform the said specific operation first. That is, when using the portable wireless device, the user holds the portable wireless device and performs the specific operation. Therefore, according to the above configuration, by comparing the received power of the antenna before detecting the specific operation with the received power of the antenna after detecting the specific operation, the portable wireless device Can detect a change in the received power of the antenna due to a transition from a state in which the user does not have the portable wireless device to a state in which the user has the portable wireless device. Then, based on the detected change, it is possible to suitably determine how the user holds the portable wireless device.

  A discrimination method according to the present invention is a discrimination method in which a portable wireless device equipped with an antenna discriminates how the user holds the device, and a specific operation by the user is performed while measuring the reception intensity of the antenna. A received intensity measuring step to detect, a received intensity measured before detecting the specific operation in the received intensity measuring step, and a received intensity measured after detecting the specific operation in the received intensity measuring step. In comparison, the method includes a holding method determining step of determining how the user holds the device.

  Further, the control method according to the present invention is a method for controlling a portable radio apparatus equipped with an antenna, the reception intensity measuring step of detecting a specific operation by a user while measuring the reception intensity of the antenna, the reception Compare the received intensity measured before detecting the specific operation in the intensity measuring step with the received intensity measured after detecting the specific operation in the received intensity measuring step, And a control step for controlling the device according to the holding method determined in the holding method determination step.

  According to said method, there exists an effect equivalent to the portable radio | wireless apparatus which concerns on this invention.

  Further, a program for operating the apparatus according to the present invention, which causes a computer to realize the functions of each of the above apparatuses, and a computer-readable recording medium recording the program are also included in the scope of the present invention.

  Advantageous Effects of Invention According to the present invention, it is possible to detect only changes due to human body contact by eliminating changes due to the influence of the surrounding environment, fading, etc., among changes in received power of an antenna in a portable wireless device. Then, by determining how to hold the detected change, it is possible to determine how the user holds the device without installing a temperature sensor or the like.

It is a figure which shows arrangement | positioning of the antenna in the portable radio | wireless apparatus which concerns on one Embodiment of this invention. It is a functional block diagram which shows schematic structure of the portable radio | wireless apparatus which concerns on one Embodiment of this invention. It is a flowchart explaining an example of control of the portable radio | wireless apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of how to hold the portable radio | wireless apparatus which concerns on one Embodiment of this invention. It is a graph which shows an example of the degradation amount of the reception power corresponding to each holding method in the portable radio | wireless apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of the various data which the portable radio | wireless apparatus which concerns on one Embodiment of this invention utilizes. It is a functional block diagram which shows the modification of schematic structure of the portable radio | wireless apparatus which concerns on one Embodiment of this invention.

  An embodiment of a portable wireless device according to the present invention will be described below with reference to the drawings. The portable wireless device according to the present embodiment is realized as a mobile phone terminal that performs wireless communication for a call with a base station. Hereinafter, the portable wireless device according to the present embodiment is simply referred to as a mobile phone terminal.

  However, the present invention is not limited to a mobile phone terminal that performs radio communication for a call with a base station, but a portable radio device that receives and / or transmits a carrier wave on which some signal is superimposed using an antenna. Generally applicable.

(Configuration of mobile phone terminal 1)
FIG. 1 is a diagram showing the arrangement of antennas in the mobile phone terminal according to the present embodiment. As shown in FIG. 1, in a mobile phone terminal (portable wireless device) 1, a plurality of antennas used for different communications are arranged at different positions. In this embodiment, the cellular phone terminal 1 includes five antennas: a digital terrestrial television broadcasting antenna 11, a GSM antenna 12, a WCDMA antenna 13, a GPS antenna 14, and a Bluetooth (registered trademark) antenna 15. ing. However, the communication system, the number of antennas, and the arrangement of antennas included in the portable wireless device according to the present invention are not particularly limited, and can be set as appropriate according to the application.

  FIG. 2 is a functional block diagram showing a schematic configuration of the mobile phone terminal 1. As shown in FIG. 2, the cellular phone terminal 1 includes first to fifth matching units 21 to 25 and first to fifth transmission / reception units (reception intensity measuring means, transmission / reception circuits) 31 to 35. The first transmission / reception unit 31 is a reception circuit for receiving terrestrial digital television broadcasts, and is connected to the terrestrial digital television broadcast antenna 11 via the first matching 21. The second transmission / reception unit 32 is a reception circuit for communication using the GSM method, and is connected to the GSM antenna 12 via the second matching 22. The third transmission / reception unit 33 is a receiving circuit for communication by the WCDMA system, and is connected to the WCDMA antenna 13 via the third matching 23. The fourth transmission / reception unit 34 is a reception circuit for GPS positioning, and is connected to the GPS antenna 14 via the fourth matching 24. The fifth transmission / reception unit 35 is a reception circuit for communication using the Bluetooth (registered trademark) system, and is connected to the Bluetooth (registered trademark) antenna 15 via the fifth matching 25. The first to fifth matching circuits 21 to 25 are matching circuits with variable matching constants. For example, the first to fifth matching circuits 21 to 25 may be composed of a variable inductor, a variable capacitor, a variable resistor, or a plurality of different matching circuits. The matching circuit connected to the antenna may be switched by a switch or the like.

  The mobile phone terminal 1 also includes an operation input unit 40 for receiving user operations. The operation input unit 40 can be configured by, for example, a general input unit such as a button, a jog dial, a touch panel, a case opening / closing or a slide mechanism.

  The mobile phone terminal 1 also includes a main control unit 50 for controlling each unit of the mobile phone terminal 1. The main control unit 50 includes an operation determination unit (operation determination unit) 51, a holding manner determination unit (holding determination unit) 60, an alignment adjustment unit (control unit) 52, and an adjustment parameter recording unit 53. The holding manner determination unit 60 includes a received power acquisition unit 61, a comparison unit 62, a pre-operation reception power recording unit 63, a post-operation reception power recording unit 64, and a reception power change amount recording unit (degradation amount recording unit) 65. . Details of each part will be described later.

  The mobile phone terminal 1 includes other known configurations for various functions including a telephone call function, but the description thereof will be omitted.

(Outline of mobile phone terminal 1)
The mobile phone terminal 1 detects a specific operation by the user, compares the received power of the antennas 11 to 15 before and after detecting the specific operation, and compares the received power before and after the specific operation. Detect changes. A specific operation by the user is always performed with the user holding the portable wireless device, and it is considered that the surrounding environment, fading, and the like do not change significantly before and after the specific operation. Therefore, by detecting the change in the received power before and after the specific operation, the change in the received power of the antennas 11 to 15 is eliminated due to the influence of the surrounding environment, fading, etc. Only changes to be detected can be detected. Then, by determining the holding method corresponding to the change caused by the detected human body contact, it is possible to determine the user's own holding method without installing a temperature sensor or the like.

(Example of control of mobile phone terminal 1)
FIG. 3 is a flowchart for explaining an example of control of the mobile phone terminal 1. The flowchart starts from a state in which the mobile phone terminal 1 is in a standby state (for example, a charged state) (step S0).

  Note that the standby state of the mobile phone terminal 1 is a state that is not intended to be actively used by the user, and is not limited to this, but in one embodiment, the mobile phone terminal 1 is displayed on the display screen. Indicates a state where no display is made. Moreover, in other embodiment, the operation input part 40 points out the state which does not receive operation other than specific operation for returning from a standby state. The specific operation for returning from the standby state is not limited to this. For example, an operation for opening the clamshell type mobile phone terminal 1, an operation for sliding the slide type mobile phone terminal 1, For example, an operation of touching the touch panel of the smartphone-type mobile phone terminal 1 can be given.

  In a state before the specific operation is performed, the first to fifth transmission / reception units 31 to 35 measure the reception power (first reception power) of each antenna. And the received power acquisition part 61 acquires regularly the data a11-15 which shows the received power which each measured from the 1st-5th transmission / reception parts 31-35, and records it in the received power recording part 63 before operation. (Step S1). The received power acquisition unit 61 may acquire the received power irregularly. The received power of the antenna can be, for example, RSSI.

  Note that the received power acquisition unit 61 preferably averages the received power at a predetermined time for the received power of each antenna described above. This is because, in the received power of the antenna, momentary fluctuations accompanying the passage of an object rarely occur, but for example, by averaging the period of the human body contact time, such instantaneous fluctuations can be ignored. is there. Thereby, the determination of how to hold by the comparison part 62 mentioned later can be implemented more suitably.

  FIG. 6A is a diagram illustrating a structure of data recorded in the pre-operation received power recording unit 63. As shown in FIG. 6A, the pre-operation received power recording unit 63 records data a11 to 15 indicating the received power of each of the antennas 11 to 15.

  The operation determination unit 51 determines whether the specific operation has been performed (YES) or not (NO) based on the signal from the operation input unit 40 (step S2). The operation input unit 40 provides a signal indicating the operation input to the operation input unit 40 to the operation determination unit 51. If the determination result is NO, the process returns to step S1 to continue the standby state. On the other hand, if the determination result is YES, the main control unit 50 controls the mobile phone terminal 1 to return from the standby state. At this time, on the contrary, an operation that puts the mobile phone terminal 1 into a standby state (for example, closing the clamshell type mobile phone terminal 1 or sliding the slide type mobile phone terminal 1 in the reverse direction) If the no-operation state is continued), the operation determination unit 51 determines NO and causes the mobile phone terminal 1 to transition to the standby state.

  Even in the state after the specific operation is performed, similarly to the state before the specific operation is performed, the first to fifth transmission / reception units 31 to 35 receive the reception power (second reception) of the respective antennas. Power). And the received power acquisition part 61 acquires regularly the data a21-25 which shows the received power which each measured from the 1st-5th transmission / reception parts 31-35, and records it in the received power recording part 64 after operation. (Step S3). The received power acquisition unit 61 may acquire the received power irregularly.

  The structure of data recorded in the received power recording unit 64 after operation is the same as the data recorded in the received power recording unit 63 before operation, as shown in FIG. That is, the data a21 to 25 indicating the received power of the antennas 11 to 15 are recorded in the post-operation received power recording unit 64. Data a21-25 can be preferably expressed in the same format as data a11-15.

  Subsequently, the comparison unit 62 compares the data recorded in the pre-operation received power recording unit 63 with the data recorded in the post-operation received power recording unit 64, and the received power before and after the specific operation. Detect changes. In one embodiment, the comparison unit 62 calculates the amount of change in received power from the data recorded in the pre-operation received power recording unit 63 and the data recorded in the post-operation received power recording unit 64. Specifically, the comparison unit 62 includes a change amount between the reception power indicated by the data a11 and the reception power indicated by the data a21, a change amount between the reception power indicated by the data a12 and the reception power indicated by the data a22, The amount of change between the received power indicated by the data a13 and the received power indicated by the data a23, the amount of change between the received power indicated by the data a14 and the received power indicated by the data a24, and the received power and data indicated by the data a15 The amount of change between the received power indicated by a25 is calculated. Then, based on the calculated change amount, the comparison unit 62 refers to the data recorded in the received power change amount recording unit 65 to determine how the user holds the mobile phone terminal 1 (step S3). The amount of change is not limited to this, but can be expressed as a rate of change in units of db, for example.

  FIG. 6B is a diagram illustrating data recorded in the received power change amount recording unit 65. As shown in FIG. 6B, the received power change amount recording unit 65 has several ways of holding (for example, “holding 1” in which the user has the mobile phone terminal 1 with the left hand, and mobile phone with the user in the right hand). Data b11 to 25 indicating the amount of change (degradation amount) of the received power of each antenna is recorded in association with “how to hold 2” having terminal 1, for example. In one embodiment, the data b11-25 recorded in the received power change amount recording unit 65 are the antennas 11-15 measured in advance when the mobile phone terminal 1 is held in some predetermined manner. This may indicate the amount of change in received power.

  Here, a change in the received power of the antenna depending on how the cellular phone terminal 1 is held will be described in detail with reference to the drawings. First, FIG. 4A is a diagram showing an example of how the user holds the mobile phone terminal 1 with the left hand (holding method 1). FIG. 4B shows the user holding the mobile phone terminal 1 with the right hand. It is a figure which shows an example of how to have (holding method 2). FIG. 5 shows a digital terrestrial television broadcast antenna 11, a GSM antenna 12, a WCDMA antenna 13, a GPS antenna before the user holds the mobile phone terminal 1 and when the user holds it in the manner shown in FIG. 14 and the measurement results of the received power of the Bluetooth (registered trademark) antenna 15. FIG. 5A is a graph showing changes in the received power of the antenna when the user holds the mobile phone terminal 1 with the left hand (holding 1), and FIG. It is a graph which shows the change of the received power of an antenna when holding the mobile telephone terminal 1 in 2).

  As shown in FIG. 4A, when the mobile phone terminal 1 is held with the left hand (holding method 1), the digital terrestrial television broadcasting antenna 11 is largely covered by the user's hand, and therefore, as shown in FIG. As described above, the reception power of the digital terrestrial television broadcasting antenna 11 varies greatly. On the other hand, the amount of degradation of the received power of the GPS antenna 14 is small. On the other hand, as shown in FIG. 4B, when the mobile phone terminal 1 is held with the right hand (how to hold 2), the GPS antenna 14 is largely covered by the user's hand, so that FIG. As shown, the received power of the GPS antenna 14 varies greatly. On the other hand, the amount of deterioration of the reception power of the digital terrestrial television broadcasting antenna 11 is small. Thus, it can be seen that the received power varies in different manners depending on how the user holds the mobile phone terminal 1. Therefore, by detecting the change in the received power, it is possible to determine the holding method based on the change.

  The comparison unit 62 includes a received power change amount calculated from the data recorded in the pre-operation received power recording unit 63 and the data recorded in the post-operation received power recording unit 64, and a received power change amount recording unit 65. The recorded change amount of the received power is compared, and the holding method corresponding to the calculated change amount of the received power is determined. In other words, the comparison unit 62 detects an analogy between the calculated change amount and the recorded change amount, thereby detecting the detected change amount closest to the calculated change amount. By acquiring the holding method associated with the changed amount from the received power change amount recording unit 65, the user's holding method of the mobile phone terminal 1 is determined.

  The analog ratio determination is not particularly limited as long as a general analog ratio determination algorithm is used, but the calculated data a31 to 35 and the recorded data b11 to 15 (or data b21 to 25 or other data) Is preferably used for each data corresponding to each antenna (for example, a31 and b11, a32 and b12, etc.).

  In other embodiments, the data recorded in the pre-operation received power recording unit 63 is not limited to the amount of change in the received power of the antenna, but is a statistic calculated based on the amount of change and the amount of change. (For example, the order in which the amount of change in received power of each antenna is arranged according to the size) may be used. In this case, the comparison unit 62 uses the pre-operation reception power recording to calculate the amount of change in reception power calculated from the data recorded in the pre-operation reception power recording unit 63 and the data recorded in the post-operation reception power recording unit 64. What is necessary is just to obtain | require the holding method linked | related with the statistic or the feature-value best matched as compared with the statistic or the feature-value recorded on the part 63.

  Subsequently, the main control unit 50 performs various controls according to the holding method determined by the comparison unit 62 (step S5). For example, control such as adjustment of matching between the antenna and the transmission / reception circuit, adjustment of transmission power, and adjustment of reception gain is performed. Hereinafter, adjustment of matching with the antenna according to the way of holding will be described, but the present invention is not limited to this, and other control may be performed instead of adjustment of matching with the antenna. In addition to the adjustment of matching with the antenna, other control may be performed.

  The matching adjustment unit 52 that adjusts the matching with the antenna according to the holding method uses the adjustment parameters c11 to 15 (or the adjustment parameters c21 to 25 or other adjustment parameters) corresponding to the holding method determined by the comparison unit 62 as the adjustment parameters. It acquires from the recording part 53, and controls the 1st-5th matching 21-25 using the said adjustment parameter. As the adjustment parameter, for example, an adjustment amount such as a variable inductor, a variable capacitor, or a variable resistor included in the first to fifth matchinges 21 to 25 or a matching circuit connected between the antenna and the transmission / reception circuit is selected. It can be a parameter that specifies the state of the switch.

  FIG. 6C is a diagram illustrating the data structure of the adjustment parameter recorded in the adjustment parameter recording unit 53. As shown in FIG. 6C, the adjustment parameter recording unit 53 records adjustment parameters that are optimal for each holding method in association with each holding method. As the adjustment parameter that is optimal in the way of holding, an adjustment parameter obtained in advance by experiments or the like can be used.

  When step S5 is completed, the cellular phone terminal 1 returns to step S2 and repeats the operation. If the matching with the antenna is adjusted in step S5, the received power of the antenna measured before the specific operation is measured under the matching condition before the adjustment, so steps S3 to S5 are performed. It may not be properly implemented. Therefore, if it is determined “YES” again in step S2 without going through step S1, the main control unit 50 may perform control such as not repeating steps S3 to S5.

(Advantages of this embodiment)
According to the mobile phone terminal 1, as described above, it is possible to determine how the user holds the device without specially installing a temperature sensor or the like.

  The cellular phone terminal 1 also adjusts the matching with the antennas 11 to 15 according to the determined holding method. Thereby, the mobile phone terminal 1 can suitably suppress the deterioration of the antenna caused by the user's own device being held by the user. That is, the amount of deterioration of the antenna characteristics due to human body contact (gripping of the cellular phone terminal 1 by the user) varies depending on how the cellular phone terminal 1 is held by the user. Since the mobile phone terminal 1 can detect how the device itself is held, it is possible to effectively suppress deterioration of the antenna characteristics.

  Since the mobile phone terminal 1 is also provided with a plurality of antennas, the mobile phone terminal 1 can detect a change in received power due to human contact (grabbing the portable wireless device by the user) at the plurality of antennas. More information can be obtained about (see, eg, FIG. 5). Thereby, the holding method can be determined with higher accuracy.

  The received power change amount recording unit 65 is portable in several ways (for example, how the user holds the mobile phone terminal 1 with the left hand and how the user holds the mobile phone terminal 1 with the right hand). The amount of change in the reception intensity of the antennas 11 to 15 when the telephone terminal 1 is held is recorded in advance in association with each holding method. Thereby, the cellular phone terminal 1 can easily determine the holding method corresponding to the detected change in the received power of the antenna by referring to the information recorded in the received power change amount recording unit 65.

  The specific operation is an operation for returning the mobile phone terminal 1 from the standby state. Therefore, in order to use the mobile phone terminal 1, the user must first perform the specific operation. That is, when using the mobile phone terminal 1, the user holds the mobile phone terminal 1 and performs the specific operation. The cellular phone terminal 1 detects the amount of change between the received power of the antennas 11 to 15 before detecting the specific operation and the received power of the antennas 11 to 15 after detecting the specific operation. Thereby, the mobile phone terminal 1 detects a change in the received power of the antennas 11 to 15 resulting from the transition from the state in which the mobile phone terminal 1 is not held by the user to the state in which the mobile phone terminal 1 is held in any way. can do. Thereby, based on the detected change amount, it is possible to suitably determine how the user holds the mobile phone terminal 1.

(Modification)
As described above, the main control unit 50 may perform transmission power adjustment, reception gain adjustment, and the like, in addition to matching between the antenna and the transmission / reception circuit, according to the determined holding method. That is, as shown in FIG. 7, the main control unit 50 may include an adjustment unit (control unit) 54. The adjustment unit 54 adjusts transmission power, reception gain, and the like in the first to fifth transmission / reception units 31 to 35 according to the holding method determined by the comparison unit 62. Adjustment parameters used to adjust transmission power, reception gain, and the like may be acquired by the adjustment unit 54 from the adjustment parameter recording unit 53.

  The main control unit 50 may adjust the user interface in the operation input unit 40 according to the determined holding method. That is, if it is determined how the user holds the mobile phone terminal 1, it can be determined whether the mobile phone terminal 1 is in portrait orientation or landscape orientation. Or can be adjusted for landscape orientation. In addition, when there are keys that are laid out in places that are difficult to press depending on how they are held, the user interface may be adjusted so that such keys are moved to places that are easier to press. In particular, when the operation input unit 40 is configured by a touch panel, the user interface can be easily adjusted as described above.

(Program and recording medium)
Finally, each block of the main control unit 50 of the mobile phone terminal 1 may be realized in hardware by a logic circuit formed on an integrated circuit (IC chip), or a CPU (Central Processing Unit) is used. It may be realized by software.

  In the latter case, the mobile phone terminal 1 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program, the program, A recording device (recording medium) such as a memory for storing various data is provided. An object of the present invention is a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program for the mobile phone terminal 1 which is software for realizing the functions described above is recorded so as to be readable by a computer. This can also be achieved by supplying the main control unit 50 of the mobile phone terminal 1 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R. IC cards (including memory cards) / optical cards, semiconductor memories such as mask ROM / EPROM / EEPROM / flash ROM, PLD (Programmable logic device), FPGA (Field Programmable Gate Array), etc. Logic circuits can be used.

  Further, the mobile phone terminal 1 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited as long as it can transmit the program code. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, and the like can 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, even with wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by radio such as High Data Rate (NFC), Near Field Communication (NFC), Digital Living Network Alliance (DLNA), mobile phone network, satellite line, and digital terrestrial network.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The present invention can be used in the field of manufacturing portable wireless devices.

1 Mobile phone terminal (portable wireless device)
11 antenna for digital terrestrial television broadcasting 12 antenna for GSM 13 antenna for WCDMA 14 antenna for GPS 15 antenna for Bluetooth (registered trademark) 21-25 first to fifth matching 31-35 first to fifth transmission / reception unit (reception) Strength measuring means, transmission / reception circuit)
40 Operation Input Unit 50 Main Control Unit 51 Operation Determination Unit (Operation Detection Unit)
52 Alignment adjustment unit (control means)
53 Adjustment parameter recording unit 60 Holding method determining unit (holding determining unit)
61 received power acquisition unit 62 comparison unit 63 received power recording unit before operation 64 received power recording unit after operation 65 received power change amount recording unit

Claims (10)

antenna,
Reception strength measuring means for measuring the reception strength of the antenna;
Operation detection means for detecting a specific operation by the user, and
First received intensity measured by the received intensity measuring means before the operation detecting means detects the specific operation, and measured by the received intensity measuring means after the operation determining means detects the specific operation A portable wireless device comprising: a holding method determining unit that compares the second reception strength with a user to determine how the user holds the device.   According to the holding method determined by the holding method determining means, adjustment of matching between the antenna and a transmission / reception circuit connected to the antenna, adjustment of transmission power of the portable wireless device, reception of the portable wireless device 2. The portable radio according to claim 1, further comprising control means for controlling at least one selected from the group consisting of gain adjustment and user interface adjustment of the portable wireless device. apparatus.   The portable radio apparatus according to claim 1, comprising a plurality of the antennas. A deterioration amount recording means for pre-recording the predetermined holding method and the deterioration amount of the received intensity corresponding to the predetermined holding method,
The holding method determining means compares the amount of change between the first received intensity and the second received intensity with the deterioration amount recorded in the deterioration amount recording means, and the user's own device The portable wireless device according to any one of claims 1 to 3, wherein a holding method is determined.   The deterioration amount recording means includes at least a deterioration amount of the reception strength when the user has the device with the left hand and a deterioration amount of the reception strength when the user has the device with the right hand. 5. The portable wireless device according to claim 4, wherein recording is performed.   The portable wireless device according to claim 1, wherein the specific operation is an operation for returning the portable wireless device from a standby state. A portable wireless device equipped with an antenna is a discrimination method for discriminating how a user holds his / her device,
A reception intensity measurement step of detecting a specific operation by the user while measuring the reception intensity of the antenna; and
The received intensity measured before detecting the specific operation in the received intensity measuring step is compared with the received intensity measured after detecting the specific operation in the received intensity measuring step, and the user's own device A determination method characterized by including a holding method determining step for determining a holding method. A method for controlling a portable wireless device including an antenna, comprising:
A reception strength measurement step of detecting a specific operation by the user while measuring the reception strength of the antenna;
The received intensity measured before detecting the specific operation in the received intensity measuring step is compared with the received intensity measured after detecting the specific operation in the received intensity measuring step, and the user's own device Holding method determining process for determining holding method, and
A control method comprising a control step of controlling the own device according to the holding method determined in the holding method determination step.   A program for causing a computer to operate as the portable wireless device according to any one of claims 1 to 6, wherein the program causes the computer to function as each means included in the portable wireless device.   A computer-readable recording medium on which the program according to claim 9 is recorded.

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