JP2007110422A - Mobile broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile broadcast receiver for providing a display section for visually guiding a user into a direction wherein the directivity of an antenna is formed and a simple entry section for setting the direction. <P>SOLUTION: The mobile broadcast receiver includes: an electronic antenna section for receiving 1-segment broadcast whose directivity is controllable; a strength measurement section for measuring a received electric field strength of the 1-segment broadcast by the electronic antenna section; the display section for visually displaying a result of the measurement by the strength measurement section; the entry section for receiving the entry for controlling the directivity of the electronic antenna section; and a control section for applying directivity control to the electronic antenna section in response to the received entry. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a movable portable broadcast receiving apparatus equipped with an antenna in a system for wirelessly transmitting video, audio, data, and the like.

Conventionally, a popular product has not been developed as a portable broadcast receiving apparatus that receives a broadcast while moving. This is because the received electric field strength fluctuates every moment, so the required SNR (Signal-to-Noise Ratio) and image quality cannot be satisfied, the demodulating element is not small and power-saving, and the broadcasting system moves in an analog manner. This is because there is a reason that the transmission specification cannot withstand reception. However, a digital terrestrial broadcasting system has been determined, and the broadcasting system includes a broadcasting system that assumes a one-segment mobile error receiver with excellent error resistance. Is about to start. The system has become a somewhat robust broadcasting system based on prior experiments with respect to resistance to various interference such as multipath and fading such as urban areas and mountainous areas, and Doppler phenomenon acting according to moving speed. However, the directivity of the antenna mounted on the portable broadcast receiver must be uniform with a low reception gain in all directions. This is because the arrival direction of radio waves changes every moment in the three-dimensional direction. Therefore, a so-called omnidirectional antenna must be mounted on the portable broadcast receiving apparatus. This is the same in the case of a mobile phone. For example, Patent Document 1 discloses a method of forming a received beam on a higher-quality incoming wave in a multipath environment, and estimating the arrival direction with a maximum likelihood of 2 A method of obtaining by multiplication is disclosed. In this method, the base station is a mobile phone base station, and the beam forming needs to be switched in real time for each time slot in which the base station connects to each mobile terminal. . Next, Patent Document 2 proposes a method for forming the directivity of a base station beam using a CDMA method, which is a method of forming directivity for a mobile terminal of a communication partner. This method increases the amount of computation by over-sampling a known pilot symbol sequence inserted in advance and a cross-correlation signal of the received sequence from the plurality of active array antenna elements using an interpolation filter. Without this, the power value peak is obtained, the path timing is established, and the directivity of the base station beam is formed.
JP2003-69481A JP 2001-36451 A

  A terrestrial digital broadcasting base station for a small portable receiving terminal performs broadcasting covering a wide area. In addition, a mobile phone communication system that switches the beam forming in real time for each time slot in which the base station connects to each mobile terminal cannot be performed. For this reason, it is difficult to estimate and approximate the arrival direction from a composite wave such as a reflected wave, a diffracted wave, a direct wave, and a scattered wave.

  Further, as in Patent Document 2, an active array antenna is used in a base station, and a power value peak is obtained from pilot symbol sequences of received signals from a plurality of active array antenna elements, thereby forming beam directivity. I can't do that either.

  The present invention has been made in view of the above problems.

  A first invention is an electronic antenna unit capable of electronic orientation control that receives a one-segment broadcast, an intensity measurement unit that measures a received electric field strength of the one-segment broadcast at the electronic antenna unit, and an intensity measurement unit A display unit that visually displays a measurement result; an input unit that receives an input for controlling the directivity of the electronic antenna unit; and a control unit that controls the directivity of the electronic antenna unit according to the received input. The present invention relates to a portable broadcast receiving apparatus.

  According to a second aspect of the present invention, there is provided an electronic antenna unit capable of electronically directing control for receiving one segment broadcast, an error measuring unit for measuring a bit error rate of a received signal of one segment broadcast at the electronic antenna unit, A display unit for visually displaying the measurement results at the unit, an input unit for receiving an input for controlling the directivity of the electronic antenna unit, and a control unit for controlling the directivity of the electronic antenna unit according to the received input The present invention relates to a portable broadcast receiving apparatus.

  3rd invention has a control information generation part which produces | generates control information based on the measurement result in the said measurement part, The said control part is said control based on the control information produced | generated in the control information generation part The present invention relates to a portable broadcast receiving apparatus according to the first or second invention having an automatic control means.

  4th invention has an attitude | position detection sensor part which detects own attitude | position, and a control information generation part has an attitude | position addition control information generation means which produces | generates control information based also on the detection result of an attitude | position detection sensor part. The present invention relates to a portable broadcast receiving apparatus described in the third invention.

  According to a fifth aspect of the present invention, the control unit includes a selection unit that selects whether the input from the input unit is used for control or the control information generated by the control information generation unit is used for control. The present invention relates to the portable broadcast receiving apparatus described in the fourth invention.

  A sixth invention relates to the portable broadcast receiving apparatus according to the fifth invention, wherein the control unit has a selection control unit for controlling the selection unit based on a measurement result in the measurement unit.

  The seventh invention has a position information holding unit that holds position information of a broadcast wave transmission antenna for one-segment broadcasting, and a position information acquisition unit that acquires its own position information. Any one of the third to sixth inventions having broadcast antenna-added control information generating means for generating control information based also on the relative positional relationship between the received position information and the held broadcast wave transmitting antenna position information The portable broadcast receiving apparatus according to claim 1.

  According to the present invention, it is possible to provide a display unit that visually guides the user in the direction in which the antenna directivity is formed and a simple input unit that sets the direction. Therefore, the antenna beam pattern can be formed so that the user can set the direction of the antenna directivity based on objective reception quality such as reception field strength and bit error rate, and obtain optimum reception quality.

Embodiments of the present invention will be described below. The relationship between the embodiment and the claims is generally as follows.
In the first embodiment, claims 1 and 8 will be mainly described.
In the second embodiment, claims 2 and 9 will be mainly described.
The third embodiment mainly describes claim 3.
The fourth embodiment will mainly describe claim 4.
The fifth embodiment will mainly describe claim 5.
The sixth embodiment will mainly describe claim 6.
The seventh embodiment will mainly describe claim 7.

  It should be noted that each functional block described below can be realized as hardware, software that is developed on a memory and controlled by controlling the hardware, or both hardware and software. Specifically, if a computer is used, hardware such as a CPU, a memory, a hard disk drive, a reading drive such as a CD-ROM or a DVD-ROM, a transmission / reception port for various communications, an interface, and other peripheral devices A configuration unit, a driver program for controlling the hardware, and other application programs are included.

  Further, the present invention can be realized not only as an apparatus or a system but also as a method. Further, a part of such an invention can be configured as software. Furthermore, a software product used to cause a computer to execute such software and a recording medium in which the product is fixed to a recording medium are naturally included in the technical scope of the present invention. (The same applies throughout this specification.)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the spirit of the present invention.

<< Embodiment 1 >>
The first embodiment will be described below.
<Concept of Embodiment 1>
The concept of this embodiment will be described below.
FIG. 36 is a diagram for explaining an example of the concept of the portable broadcast receiving apparatus of the present embodiment. The portable broadcast receiving apparatus 3600 visually displays the measurement result of the received electric field intensity of the one-segment broadcast on the display unit 3601 together with the directivity of the radio wave. In FIG. 36, the current reception field strength and directivity (black portion) of the current radio wave and the optimal reception field strength and directivity (thick line portion) of the radio wave are shown on the display unit. The user inputs to the input unit so as to obtain the optimal reception electric field strength and directivity of the radio wave while viewing the image on the display unit (for example, touching an image showing the optimal reception electric field strength and directivity of the radio wave by hand) Thus, the control unit of the portable broadcast receiving apparatus controls the electronic antenna unit so that its antenna has the optimum received electric field strength and directivity of radio waves.

<Clarification of configuration requirements>
In the following, the configuration requirements of this embodiment will be clarified.
FIG. 1 is a diagram illustrating an example of functional blocks of the present embodiment.
FIG. 3 is a diagram illustrating an example of specific functional blocks of the present embodiment.
The portable broadcast receiving devices 0100 and 0300 include electronic antenna units 0101 and 0301, intensity measuring units 0102 and 0302, display units 0103 and 0303, input units 0104 and 0304, and control units 0105 and 0505.

<Description of configuration requirements>
Below, the component requirements of this embodiment are demonstrated.
(Electronic antenna part)
The “electronic antenna unit” is configured to receive a one-segment broadcast. Here, “one-segment broadcasting” refers to broadcasting of a program (simple moving image) for a portable broadcast receiving device, which is performed using radio waves of terrestrial digital broadcasting. Hereinafter, the one-segment broadcasting will be briefly described. Japanese terrestrial digital broadcasting is based on a standard called “ISDB-T” (Integrated Services Digital Broadcasting Terrestrial). This ISDB-T has the feature of hierarchical transmission, and is divided into “hierarchies” after multiplexing modulation methods that are resistant to noise and multipath for portable broadcast receivers and relatively weak modulation methods for home TV. It is possible to broadcast. The contents broadcast there are classified into “strong hierarchy” = for mobile reception (simple video broadcast) and “weak hierarchy” = for fixed reception (HDTV broadcast) according to the image quality. One segment broadcasting refers to simple video broadcasting using this strong hierarchy. Digital terrestrial broadcasting uses radio waves in the UHF (Ultra High Frequency) band, and 6 MHz is assigned as one channel. This is divided into 13 segments for broadcasting. Since broadcasting is performed using “one segment” assigned to a strong hierarchy for mobile reception, it is called “one segment broadcasting (also referred to as one segment broadcasting)”. Note that resistance to noise and multipath is a trade-off with the bit rate to be transmitted. The one-segment broadcast received by the electronic antenna unit is used by being output to the intensity measuring unit. Note that the electronic antenna unit 0301 in FIG. 3 shows the directivity of the current antenna that receives the one-segment broadcast.

  The “electronic antenna unit” is configured so that the antenna can be electronically controlled. Here, an active array antenna element etc. are mentioned as an example in an electronic antenna part. An “active array antenna element” refers to an antenna having an active element (amplifier or the like) that amplifies power after power distribution of received radio waves. An active array antenna element has a large number of active elements (amplifiers, etc.), and by combining power in space, high power can be obtained without using a traveling wave tube, etc., and the active array antenna element can be downsized. Since the phaser can be electrically controlled, the beam scan can be performed at high speed. The direction of the electronic antenna unit is electronically controlled by a control unit described later.

(Strength measuring part)
The “strength measuring unit” is configured to measure the received electric field strength of the one-segment broadcast at the electronic antenna unit. Here, the “reception electric field strength” may include not only the magnitude but also the direction (directivity). Moreover, the measurement in an intensity | strength measurement part is not limited to once, You may be performed repeatedly. When repeating measurement, for example, the received electric field strength can be measured in all directions by electronically switching the directivity of the electronic antenna unit. Note that, during viewing of a one-segment broadcast, measurement of the received electric field intensity other than the viewing direction is not normally performed. However, the strength measuring unit may be configured to be able to measure the received electric field strength in directions other than the received radio wave direction that is being viewed while viewing the one-segment broadcast. In this case, if there is only one antenna, it is assumed that when the electric field intensity in the direction other than the viewing radio wave direction is measured by the intensity measurement unit, a failure such as a screen disturbance due to a weak electric field may occur. However, for example, if an antenna for receiving electric field strength measurement is provided separately, the electric field strength in directions other than the radio wave direction being viewed can be measured without changing the antenna direction of the radio wave being viewed. The measured received electric field strength is used by being output to the display unit. Note that the measured intensity of the received electric field is shown in the intensity measuring unit 0302 in FIG. 3 (the size of the blacked portion indicates the intensity of the received electric field).

(Display section)
The “display unit” is configured to visually display the measurement result of the intensity measurement unit. Here, the “visual display” method includes, for example, an analog display method, a digital display method, a two-dimensional display method, a three-dimensional display method, and an absolute value display. And a method of displaying with a relative value. The analog display method is, for example, a display method such as an analog timepiece in which the magnitude of the received electric field strength is indicated with a hand on the dial, or a method of displaying the magnitude of the received electric field strength in a bar shape. The digital display method is, for example, a method of displaying the magnitude of the received electric field intensity only with a numerical value like a digital clock. The two-dimensional display method is, for example, a method of two-dimensionally displaying the magnitude of the received electric field strength and the direction of the received radio wave. The three-dimensional display method is, for example, a method of three-dimensionally displaying the magnitude of the received electric field strength and the direction of the received radio wave. The method of displaying with an absolute value is a method of displaying the received electric field strength with an absolute value. The method of displaying with the relative value is a method of displaying the received electric field strength as a percentage with a relative value from the reference value.

  In addition, the display of the measurement result in the intensity measuring unit may display one measurement result, or may display a plurality of measurement results simultaneously. In the method of displaying a plurality of measurement results simultaneously, for example, the directivity of the electronic antenna unit is electronically switched using the input from the input unit which will be described later repeatedly, and the received electric field strength is measured. A method of simultaneously displaying the measurement results can be considered. The measurement result visually displayed on the display unit is used by being visually recognized by the user. The display unit 0303 in FIG. 3 visually displays the measurement result of the intensity measurement unit (displayed as a relative value, indicating that the received electric field strength is 70% of the reference value). )

(Input section)
The “input unit” is configured to receive an input for controlling the directivity of the electronic antenna unit. Here, examples of the “input unit” include a touch panel type, a trackball type, a jog lever type, and a keyboard type. The touch panel type is, for example, a type in which an image displayed on a display screen is input by touching with a finger. A trackball type or jog lever type is a type of selecting an image by moving a pointer displayed on a display screen by operating a track ball or a jog lever, for example. The keyboard type is, for example, a method of selecting an image by inputting numerical values or characters from a keyboard. Based on the measurement result displayed on the display unit, the user can control the directivity of the electronic antenna unit via the control unit, which will be described later, by inputting to the input unit so that the received electric field strength is maximized. it can. The input received by the input unit is used by being output to the control unit. Note that the input unit 0304 in FIG. 3 indicates an input direction (direction of the antenna directivity to be controlled) for controlling the directivity of the electronic antenna unit.

(Control part)
The “control unit” is configured to control the directivity of the electronic antenna unit according to the received input. As an example of the directivity control method, when an active array antenna element is used, the directivity can be changed by controlling the phase of the active array antenna element. In addition, the control unit 0305 in FIG. 3 shows a state in which the directivity control of the electronic antenna unit is performed according to the received input (directivity is controlled from the blacked portion to the thick line direction).
(Portable broadcast receiver)
Examples of the “portable broadcast receiving apparatus” include a mobile phone with a built-in tuner for receiving a one-segment broadcast, a PDA (Personal Digital Assistant) information terminal, and the like.

  FIG. 37 is a diagram illustrating a result of measuring the received electric field strength every 45 degrees in all directions as an example. X4 indicates the current received electric field strength, and X2 indicates the maximum value of the received electric field strength.

  FIG. 38 is a diagram illustrating an example of a processing flow for controlling the directivity of the antenna in the direction in which the received electric field strength is maximum based on the received electric field strength. First, 1 is substituted for n (step S3801). Next, the electric field strength Ym in the current direction is acquired (step S3802). Next, the electric field intensity Xn in the direction n is acquired (step S3803). Next, it is determined whether or not the azimuth m = the azimuth n. If the azimuth m = the azimuth n is not satisfied, the process proceeds to step S3805. As a result of the determination, if the azimuth m = the azimuth n, the process proceeds to step S3810 (step S3804). Next, as a result of the determination, if the azimuth m is not azimuth n, the electric field strengths Xn and Ym are compared (step S3805). Next, it is determined whether Xn> Ym. If Xn> Ym, the process advances to step S3807. If Xn> Ym is not the result of the determination, the process proceeds to step S3810 (step S3806). Next, as a result of the determination, if Xn> Ym, Xn is substituted for Ym (step S3807). Next, it is determined whether or not n is finished. If n is finished, the process proceeds to step S3809. If n is not the end result of the determination, the process proceeds to step S3810 (step S3808). Next, as a result of the determination, if n is complete, the process ends in the direction of m (step S3809). Next, n + 1 is substituted for n, and the process returns to step S3803 (step S3810). Note that n described above represents, for example, a block number when all directions are divided into n directions. Here, assuming that the omnidirectional angle is 360 degrees, when n = 8, the omnidirectional area is divided into eight blocks of 45 degrees.

<Process flow>
Below, the flow of the process of this embodiment is demonstrated. The processing flow shown below can be implemented as a method, a program for causing a computer to execute, or a readable recording medium on which the program is recorded (this is the flow of other processing in this specification). Is the same).

FIG. 2 is a diagram for illustrating an example of a processing flow of the present embodiment.
First, in the portable broadcast receiving apparatus of this embodiment, the receiving step receives a one-segment broadcast (step S0201).
Next, in the portable broadcast receiving apparatus of this embodiment, the intensity measurement step measures the received electric field intensity of the one segment broadcast received in the reception step (step S0202).
Next, in the portable broadcast receiving apparatus of this embodiment, the display step visually displays the measurement result in the intensity measurement step (step S0203).
Next, in the portable broadcast receiving apparatus of the present embodiment, the input step receives an input for controlling the directivity of the electronic antenna unit (step S0204).
Next, in the portable broadcast receiving apparatus of the present embodiment, the control step performs directivity control of the electronic antenna unit according to the received input (step S0205).

<Example 1: Hardware configuration diagram>
Hereinafter, Example 1 of the present embodiment will be described.

  FIG. 4 is a schematic diagram illustrating an example of a hardware configuration of the portable broadcast receiving apparatus according to the present embodiment. The operation of each hardware component of the portable broadcast receiving apparatus will be described using this figure. As shown in this figure, the portable broadcast receiving device 0400 includes an “active array antenna” (0406) in the electronic antenna unit 0401. Further, the portable broadcast receiving apparatus includes a “reception intensity measuring device” (0407) in the intensity measuring unit 0402. The portable broadcast receiving apparatus includes a “display controller” (0408) in the display unit 0403. Further, the portable broadcast receiving apparatus includes an “input controller” (0409) in the input unit 0404. Further, the portable broadcast receiving apparatus includes an “antenna directivity controller” (0410) in the control unit 0405. The portable broadcast receiving apparatus also includes a “tuner” (0411). The portable broadcast receiving apparatus includes a “CPU (central processing unit)” (0412), a “storage device” (0413), a “main memory” (0414), and a “built-in clock” (0415). ing. These are connected to each other by a data communication path such as “system bus” (0416), and perform transmission / reception and processing of information. The storage device stores various programs executed by the CPU (for example, a program for directivity control), contents, and the like. Further, the CPU reads out the program stored in the storage device in order to execute it. At the same time, the main memory provides a work area which is also a work area of the program. In addition, memory addresses are assigned to the main memory and storage devices, respectively, and programs executed by the CPU can exchange data by specifying and accessing the memory addresses to perform processing. It has become. The built-in clock has a function of measuring and outputting the current time.

  Below, the case where an antenna directivity controller controls an active array antenna based on the input from a user is demonstrated. First, the active array antenna receives a one-segment broadcast. Next, the tuner selects a broadcast channel received by the active array antenna. Next, the received electric field strength measuring device measures the received electric field strength of the one-segment broadcast selected by the tuner. Next, the display controller displays the received electric field strength measured by the received electric field strength measuring instrument on the display. Next, the input controller receives an input from the user (for example, an input for making the directivity that maximizes the received electric field strength), and outputs the input data to the CPU. Next, the CPU activates the directivity control program based on the input from the input controller. The CPU expands the orientation control program (address 01) stored in the storage device in the work area (address 10) of the main memory. The CPU calculates the directivity of the active array antenna to be controlled based on the input from the input controller according to the directivity control program developed at the address 10, and passes control to the antenna directivity controller. The antenna directivity controller electronically controls the directivity of the active array antenna so as to maximize the received electric field intensity based on the calculation result. The above is an example of the function and operation of each hardware configuration. Note that the antenna directivity controller may be configured only by hardware, may be only software controlled, or may be configured by hardware and software.

<Simple explanation of effect of Embodiment 1>
According to the portable broadcast receiving apparatus of this embodiment, the received electric field strength of one segment broadcast is measured and displayed visually, and the electronic antenna unit is controlled based on the display so that the directivity desired by the user is obtained. can do.

<< Embodiment 2 >>
The second embodiment will be described below.
<Concept of Embodiment 2>
The concept of this embodiment will be described below. The portable broadcast receiving apparatus of this embodiment visually displays the measurement result of the measured bit error rate of the received signal of the one-segment broadcast on the display unit together with the directivity of the radio wave. When the user inputs to the input unit so as to obtain an optimum bit error rate while viewing the image on the display unit (for example, by touching an image showing the optimum bit error rate by hand), the portable broadcast receiving device The control unit controls the electronic antenna unit so that its own antenna has an optimum bit error rate.

<Clarification of configuration requirements>
In the following, the configuration requirements of this embodiment will be clarified.
FIG. 5 is a diagram illustrating an example of functional blocks of the present embodiment.
FIG. 7 is a diagram illustrating an example of specific functional blocks of the present embodiment.
The portable broadcast receiving devices 0500 and 0700 include electronic antenna units 0501 and 0701, error measurement units 0502 and 0702, display units 0503 and 0703, input units 0504 and 0704, and control units 0505 and 0705.

<Description of configuration requirements>
Below, the component requirements of this embodiment are demonstrated.
(Electronic antenna part), (Input part), (Control part)
The “electronic antenna unit”, “input unit”, and “control unit” are the same as those described in the first embodiment, and thus the description thereof is omitted.

(Error measurement part)
The “error measurement unit” is configured to measure the bit error rate of the reception signal of the one-segment broadcast at the electronic antenna unit. Here, the “bit error rate” refers to a value obtained by dividing the number of error bits by the total number of bits received within a specified period. The number of error bits is calculated using, for example, a parity code for error detection included in the received signal, an ECC (Error Check and Correct) code having a function for detecting and correcting errors, and the like. be able to. Moreover, the measurement by the error measurement unit is not limited to one time, and may be repeatedly performed. When repeating measurement, for example, the received electric field strength can be measured in all directions by electronically switching the directivity of the electronic antenna unit. Note that during viewing of a one-segment broadcast, measurement of bit error rates other than the viewing direction is not normally performed. However, a bit error rate in a direction other than the received radio wave direction that is viewed while viewing one-segment broadcast may be measured by the error measurement unit. In this case, if there is only one antenna, it is assumed that when the error measurement unit measures the bit error rate in a direction other than the viewing radio wave direction, a failure such as a disturbance of the screen due to a weak electric field may occur. . However, for example, if an antenna for measuring bit error rate is separately provided, it is possible to measure a bit error rate of a direction other than the radio wave direction being viewed without changing the antenna direction of the radio wave being viewed. The measured bit error rate is used by being output to a display unit. The error measurement unit 0702 in FIG. 7 shows the measured current bit error rate (the size of the black portion indicates the bit error rate, and the larger the bit error rate, the smaller the bit error rate). Show).

(Display section)
The “display unit” is configured to visually display the measurement result in the error measurement unit. Note that the measurement result of the error measurement unit is visually displayed on the display unit 0703 in FIG. 7 (indicating that the bit error rate is 30%). Since it is the same as that of Embodiment 1 except displaying the measurement result in an error measurement part visually, description is abbreviate | omitted.

<Process flow>
Below, the flow of the process of this embodiment is demonstrated.

FIG. 6 is a diagram for illustrating an example of a processing flow of the present embodiment.
First, in the portable broadcast receiving apparatus of this embodiment, the receiving step receives a one-segment broadcast (step S0601).
Next, in the portable broadcast receiving apparatus of the present embodiment, the error measurement step measures the bit error rate of the received signal of the one segment broadcast received in the reception step (step S0602).
Next, in the portable broadcast receiving apparatus of the present embodiment, the display step visually displays the measurement result in the intensity measurement step (step S0603).
Next, in the portable broadcast receiving apparatus of this embodiment, the input step accepts an input for controlling the directivity of the electronic antenna unit (step S0604).
Next, in the portable broadcast receiving apparatus of this embodiment, the control step performs directivity control of the electronic antenna unit according to the received input (step S0605).

<Example 2: Hardware configuration diagram>
Hereinafter, Example 2 of this embodiment will be described.

  FIG. 8 is a schematic diagram illustrating an example of a hardware configuration of the portable broadcast receiving apparatus according to the present embodiment. The operation of each hardware component of the portable broadcast receiving apparatus will be described using this figure. As shown in this figure, the portable broadcast receiving device 0800 includes an “active array antenna” (0806) in the electronic antenna unit 0801. Further, the portable broadcast receiving apparatus includes a “bit error rate measuring device” (0807) in the error measuring unit 0802. The portable broadcast receiving apparatus includes a “display controller” (0808) in the display unit 0803. The portable broadcast receiving apparatus includes an “input controller” (0809) in the input unit 0804. Further, the portable broadcast receiving apparatus includes an “antenna directivity controller” (0810) in the control unit 0805. The portable broadcast receiving apparatus includes a “tuner” (0811). The portable broadcast receiving apparatus includes a “CPU (central processing unit)” (0812), a “storage device” (0813), a “main memory” (0814), and a “built-in clock” (0815). ing. Then, they are connected to each other through a data communication path such as “system bus” (0816) to perform transmission / reception and processing of information. The storage device stores various programs executed by the CPU (for example, a program for directivity control), contents, and the like. Further, the CPU reads out the program stored in the storage device in order to execute it. At the same time, the main memory provides a work area which is also a work area of the program. In addition, memory addresses are assigned to the main memory and storage devices, respectively, and programs executed by the CPU can exchange data by specifying and accessing the memory addresses to perform processing. It has become. The built-in clock has a function of measuring and outputting the current time.

  Below, the case where an antenna directivity controller controls an active array antenna based on the input from a user is demonstrated. First, the active array antenna receives a one-segment broadcast. Next, the tuner selects a broadcast channel received by the active array antenna. Next, the bit error rate measuring device measures the bit error rate of the reception signal of the one-segment broadcast selected by the tuner. Next, the display controller displays the bit error rate measured by the bit error rate measuring instrument on the display. Next, the input controller receives an input from the user (for example, an input for making the directivity that minimizes the bit error rate) and outputs the input data to the CPU. Next, the CPU activates the directivity control program based on the input from the input controller. The CPU expands the orientation control program (address 01) stored in the storage device in the work area (address 10) of the main memory. The CPU calculates the directivity of the active array antenna to be controlled based on the input from the input controller according to the directivity control program developed at the address 10, and passes control to the antenna directivity controller. The antenna directivity controller electronically controls the directivity of the active array antenna so that the bit error rate is minimized based on the calculation result. The above is an example of the function and operation of each hardware configuration. Note that the antenna directivity controller may be configured only by hardware, may be only software controlled, or may be configured by hardware and software.

<Simple explanation of effect of embodiment 2>
According to the portable broadcast receiving apparatus of this embodiment, the bit error rate of the received signal of the one-segment broadcast is measured and displayed visually, and the electronic antenna is set so as to have the directivity desired by the user based on the display. Part can be controlled.

<< Embodiment 3 >>
The third embodiment will be described below.
<Concept of Embodiment 3>
The concept of this embodiment will be described below. The present embodiment includes a control information generation unit that generates control information based on a measurement result of the measurement unit, and the control unit performs the control based on the control information generated by the control information generation unit. The present invention relates to a portable broadcast receiving apparatus according to the first or second embodiment having automatic control means.

<Clarification of configuration requirements>
In the following, the configuration requirements of this embodiment will be clarified.
FIG. 9 is a diagram illustrating an example of functional blocks of the present embodiment.
FIG. 11 is a diagram illustrating an example of a specific functional block according to the present embodiment.
The portable broadcast receiving devices 0900 and 1100 include electronic antenna units 0901 and 1101, intensity measuring units 0902 and 1102, display units 0903 and 1103, input units 0904 and 1104, control units 0905 and 1105, and control information generation. Parts 0906 and 1106. The control unit includes automatic control units 0907 and 1107. In addition, although the structure which has an error measurement part (not shown) instead of an intensity | strength measurement part may be sufficient, the structure which has an intensity | strength measurement part is demonstrated in this embodiment.

<Description of configuration requirements>
Below, the component requirements of this embodiment are demonstrated.
(Electronic antenna part), (input part), (strength measuring part), (error measuring part), (display part)
The “electronic antenna unit”, “input unit”, “intensity measurement unit”, “error measurement unit”, and “display unit” are the same as those described in the first or second embodiment, and thus description thereof is omitted.

(Control information generator)
The “control information generation unit” is configured to generate control information based on a measurement result in a measurement unit (intensity measurement unit or error measurement unit, hereinafter the same in the present embodiment). Here, “control information” refers to information used in the control unit to control the directivity of the electronic antenna unit. The control information includes, for example, “rotate the directivity of the active array antenna 30 degrees to the right”, “double the power of the third array antenna”, and “the phase of the phase shifter 45 degrees to the left Information such as “Rotate”. Also, “Control the directivity of the electronic antenna unit so that the received electric field strength is maximized”, “Control the directivity of the electronic antenna unit so that the received electric field strength is equal to or higher than the reference value”, “ ”Control the directivity of the electronic antenna so that the bit error rate is improved”, “Control the directivity of the electronic antenna so that the bit error rate is minimized”, “Electron so that the bit error rate is below the reference value” It may be a calculation result calculated based on information such as “control the directivity of the antenna unit”. The generated control information is used by being output to automatic control means of the control unit described later. In addition, the control information generation part 1106 of FIG. 11 shows the control information (directivity of the antenna to be controlled) generated based on the measurement result in the intensity measurement part.

(Control part)
The “control unit” is configured to automatically control means.
(Automatic control means)
The “automatic control means” is configured to perform control based on the control information generated by the control information generation unit. For example, when the control information is “control the directivity of the electronic antenna unit so that the received electric field strength is equal to or higher than the reference value”, the received electric field strength is equal to or higher than the reference value by electronically controlling the electronic antenna unit. Change its directivity so that In this case, if it does not become the reference value or more at a time, it is possible to repeat the control so that it becomes the reference value or more. Note that the automatic control means 1107 in FIG. 11 shows a state in which the directivity control of the electronic antenna unit is performed based on the control information generated by the control information generation unit (from the black portion to the thick line direction). Directivity is controlled).

<Process flow>
Below, the flow of the process of this embodiment is demonstrated.

FIG. 10 is a diagram for illustrating an example of a processing flow of the present embodiment.
First, in the portable broadcast receiving apparatus of this embodiment, the receiving step receives a one-segment broadcast (step S1001).
Next, in the portable broadcast receiving apparatus of this embodiment, the intensity measurement step measures the received electric field intensity of the one segment broadcast received in the reception step (step S1002).
Next, in the portable broadcast receiving apparatus of the present embodiment, the control information generation step generates control information based on the measurement result in the intensity measurement step (step S1003).
Next, in the portable broadcast receiving apparatus of this embodiment, the automatic control step performs directivity control of the electronic antenna unit based on the control information generated in the control information generation step (step S1004).

<Example 3: Hardware configuration diagram>
Hereinafter, Example 3 of the present embodiment will be described.

  FIG. 12 is a schematic diagram illustrating an example of a hardware configuration of the portable broadcast receiving apparatus according to the present embodiment. The operation of each hardware component of the portable broadcast receiving apparatus will be described using this figure. As shown in this figure, the portable broadcast receiving apparatus 1200 includes an “active array antenna” (1208) in the electronic antenna unit 1201. Further, the portable broadcast receiving apparatus includes a “reception intensity measuring device” (1209) in the intensity measuring unit 1202. Further, the portable broadcast receiving apparatus includes a “display controller” (1210) in the display unit 1203. Further, the portable broadcast receiving apparatus includes an “input controller” (1211) in the input unit 1204. Further, the portable broadcast receiving apparatus includes an “antenna directivity controller” (1213) and automatic control means 1207 in the control unit 1205. The automatic control means has an automatic controller 1214. The portable broadcast receiving apparatus also includes a “tuner” (1215). The portable broadcast receiving apparatus includes a “CPU (central processing unit)” (1216), a “storage device” (1217), a “main memory” (1218), and a “built-in clock” (1219). ing. Then, they are connected to each other by a data communication path such as a “system bus” (1220), and perform transmission / reception and processing of information. The storage device stores various programs executed by the CPU (for example, a program for directivity control), contents, and the like. Further, the CPU reads out the program stored in the storage device in order to execute it. At the same time, the main memory provides a work area which is also a work area of the program. In addition, memory addresses are assigned to the main memory and storage devices, respectively, and programs executed by the CPU can exchange data by specifying and accessing the memory addresses to perform processing. It has become. The built-in clock has a function of measuring and outputting the current time.

  The case where the automatic controller controls the active array antenna based on the control information will be described below. First, the active array antenna receives a one-segment broadcast. Next, the tuner selects a broadcast channel received by the active array antenna. Next, the received electric field strength measuring device measures the received electric field strength of the one-segment broadcast selected by the tuner, and outputs control information to the CPU. The CPU that has acquired the control information activates the directivity control program based on the control information. The CPU expands the orientation control program (address 01) stored in the storage device in the work area (address 10) of the main memory. The CPU calculates the directivity of the active array antenna to be controlled based on the control information in accordance with the directivity control program developed at the address 10, and passes control to the automatic controller. The automatic controller electronically controls the directivity of the active array antenna so as to maximize the received electric field intensity based on the calculation result. The above is an example of the function and operation of each hardware configuration. Note that the automatic controller may be configured only by hardware, may be configured only by software control, or may be configured by hardware and software. Further, since the control method when using the input controller is the same as that of the first or second embodiment, the description thereof is omitted.

<Simple explanation of effect of Embodiment 3>
According to the portable broadcast receiving apparatus of the present embodiment, control information is generated by measuring the reception electric field strength or bit error rate of one-segment broadcasting, and automatically has a desired directivity based on the control information. In addition, the electronic antenna unit can be controlled.

<< Embodiment 4 >>
Embodiment 4 will be described below.
<Concept of Embodiment 4>
The concept of this embodiment will be described below. The present embodiment includes an attitude detection sensor unit that detects its own attitude, and the control information generation unit includes an attitude-added control information generation unit that generates control information based on a detection result of the attitude detection sensor unit. The present invention relates to the portable broadcast receiving apparatus according to the third embodiment.

<Clarification of configuration requirements>
In the following, the configuration requirements of this embodiment will be clarified.
FIG. 13 is a diagram illustrating an example of functional blocks of the present embodiment. The portable broadcast receiving apparatus 1300 includes an electronic antenna unit 1301, an intensity measurement unit 1302, a display unit 1303, an input unit 1304, a control unit 1305, a control information generation unit 1306, and an attitude detection sensor unit 1308. Become. The control unit also has automatic control means 1307. Further, the control information generation unit has a posture-added control information generation unit 1309. In addition, although the structure which has an error measurement part (not shown) instead of an intensity | strength measurement part may be sufficient, the structure which has an intensity | strength measurement part is demonstrated in this embodiment.

<Description of configuration requirements>
Below, the component requirements of this embodiment are demonstrated.
(Electronic antenna part), (input part), (strength measuring part), (error measuring part), (display part), (control part), (automatic control means)
Since “electronic antenna unit”, “input unit”, “strength measuring unit”, “error measuring unit”, “display unit”, “control unit”, and “automatic control unit” are the same as those described in the third embodiment, they will be described. Is omitted.

(Attitude detection sensor)
The “posture detection sensor unit” is configured to detect its own posture. Here, examples of the “attitude detection sensor unit” include a gyro sensor (also referred to as a gyroscope), a micro gyro, and the like. Here, the “gyro sensor” refers to a measuring instrument that detects an angular velocity acting on an object. It is mainly used for attitude control of rockets and airplanes, but recently it is also used in car navigation systems, automatic driving systems, robots, and unmanned reconnaissance aircraft. The “micro gyro” refers to a minute sensor that detects angular velocity. Micro gyros are also used as attitude sensors for micro robots. The posture detected by the posture detection sensor unit is used by being output to automatic control means of a control unit described later.

(Control information generator)
The “control information generation unit” is configured to include posture-added control information generation means.
(Attitude consideration control information generation means)
The “posture-addition control information generating unit” is configured to generate control information based on the detection result of the posture detection sensor unit. Here, “control information” refers to information used in the control unit in order to control the directivity of the electronic antenna unit three-dimensionally in consideration of its own posture. Since the control information is the same as that of the third embodiment except that the control information is generated in consideration of its own posture, the description thereof is omitted. The generated control information is used by being output to automatic control means of the control unit.

<Process flow>
Below, the flow of the process of this embodiment is demonstrated.

FIG. 14 is a diagram for illustrating an example of a processing flow of the present embodiment.
First, in the portable broadcast receiving apparatus of the present embodiment, the receiving step receives a one-segment broadcast (step S1401).
Next, in the portable broadcast receiving apparatus of this embodiment, the intensity measurement step measures the received electric field intensity of the one-segment broadcast received in the reception step (step S1402).
Next, in the portable broadcast receiving apparatus of this embodiment, the posture detection step detects its own posture (step S1403).
Next, in the portable broadcast receiving apparatus of this embodiment, the posture-added control information generation step generates control information based on the measurement result in the intensity measurement step and the detection result in the posture detection step (step S1404).
Next, in the portable broadcast receiving apparatus of this embodiment, the automatic control step performs directivity control of the electronic antenna unit based on the control information generated in the posture-added control information generation step (step S1405).

<Example 4: Hardware configuration diagram>
Hereinafter, Example 4 of the present embodiment will be described.

  FIG. 15 is a schematic diagram illustrating an example of a hardware configuration of the portable broadcast receiving apparatus according to the present embodiment. The operation of each hardware component of the portable broadcast receiving apparatus will be described using this figure. As shown in this figure, the portable broadcast receiving apparatus 1500 includes an “active array antenna” (1510) in the electronic antenna unit 1501. Further, the portable broadcast receiving apparatus includes a “reception intensity measuring device” (1511) in the intensity measuring unit 1502. Further, the portable broadcast receiving apparatus includes a “display controller” (1512) in the display unit 1503. Further, the portable broadcast receiving apparatus includes an “input controller” (1513) in the input unit 1504. Further, the portable broadcast receiving apparatus includes an “antenna directivity controller” (1515) and automatic control means 1507 in the control unit 1505. The automatic control means has an automatic controller 1516. Further, the portable broadcast receiving apparatus includes a “gyro sensor” (1517) in the posture detection sensor unit 1508. The portable broadcast receiving apparatus also includes a “tuner” (1519). The portable broadcast receiving apparatus includes a “CPU (central processing unit)” (1520), a “storage device” (1521), a “main memory” (1522), and a “built-in clock” (1523). ing. Then, they are connected to each other through a data communication path such as a “system bus” (1524) to perform transmission / reception and processing of information. The storage device stores various programs executed by the CPU (for example, a directivity control program), position information, time information, contents, and the like. Further, the CPU reads out the program stored in the storage device in order to execute it. At the same time, the main memory provides a work area which is also a work area of the program. In addition, memory addresses are assigned to the main memory and storage devices, respectively, and programs executed by the CPU can exchange data by specifying and accessing the memory addresses to perform processing. It has become. The built-in clock has a function of measuring and outputting the current time.

  The case where the automatic controller controls the active array antenna based on the control information will be described below. First, the active array antenna receives a one-segment broadcast. Next, the tuner selects a broadcast channel received by the active array antenna. Next, the gyro sensor detects its own posture. Next, the received electric field strength measuring device shows the position information, time information, the attitude of the gyro sensor detected by the tuner, the received electric field strength of the one segment broadcast selected by the tuner, and the like. Control information is generated based on the measured received electric field strength and the attitude of the gyro sensor, and is output to the CPU. The CPU that has acquired the control information activates the directivity control program based on the control information. The CPU expands the orientation control program (address 01) stored in the storage device in the work area (address 10) of the main memory. The CPU calculates the directivity of the active array antenna to be controlled based on the control information in accordance with the directivity control program developed at the address 10, and passes control to the automatic controller. The automatic controller electronically controls the directivity of the active array antenna three-dimensionally so as to maximize the received electric field intensity based on the calculation result. The above is an example of the function and operation of each hardware configuration. Note that the automatic controller may be configured only by hardware, may be configured only by software control, or may be configured by hardware and software. Further, since the control method when using the input controller is the same as that of the third embodiment, the description thereof is omitted.

<Example 5>
Hereinafter, Example 5 of the present embodiment will be described.
Before explaining the present embodiment, first, the flow of the modulation system of terrestrial digital broadcasting will be briefly described. In the digital terrestrial broadcast modulation scheme, first, a stream encoded by the information source encoding scheme MPEG2 is multiplexed based on the multiplexing scheme to form a transport stream. Thereafter, remultiplexing is performed based on the configuration of the multiplexed frame (three types of modes). Next, the transport stream has a packet length changed from 188 bytes to 204 bytes according to the outer code, and is divided into hierarchies. Each of the transport streams is subjected to energy spreading, interleaving, and convolutional codes, and error tolerance is enhanced. The data string is assigned to coordinate axes by a mapper corresponding to bit interleaving and modulation. Further, the data sequence that has been divided for each layer is synthesized and subjected to time / frequency interleaving, and then reconstructed into an OFDM modulation frame together with TMMC (transmission control signal) and pilot signal. Next, IFFT and GI (guard interval) are inserted, orthogonally modulated on the IQ axis, converted into an RF signal through an up converter and a power amplifier, and transmitted. As can be seen from the above configuration, this modulated wave has enhanced error resistance, and even when a composite wave such as a reflected wave, a diffracted wave, a direct wave, or a scattered wave is received, a certain level of delay relationship is satisfied. If so, the positive reception rate is not affected. In addition, a mode with the most enhanced error tolerance is provided for reception by mobile terminals, and this broadcasting system is attracting attention as an effort toward fusion of broadcasting and communication that creates new receiving forms and services. Yes. Since the receiving antenna is also a portable terminal, various types such as an omnidirectional antenna such as a conical beam and an antenna that electrically controls directivity have been developed so as to obtain a smaller and higher gain. In addition, a device that detects the attitude of the terminal in the three-dimensional direction has been developed. By combining such a transmission method, directivity control, and attitude detection device, reception control for stably receiving broadcasts on the mobile terminal The system and reception environment can be configured.

Next, this embodiment will be described with reference to the drawings.
FIG. 28 shows a basic configuration example of this embodiment. Terrestrial digital broadcast waves are received by an antenna unit 2801 (corresponding to an electronic antenna unit). At this time, when controlling the directivity of the antenna, a directivity control signal that is electrically controlled from the microcomputer 2806 is supplied to the antenna unit. The received RF signal is input to a tuner 2802 that tunes to an appropriate frequency and detects it. Next, in order to evaluate the reception quality of the detected signal, a transmission line quality evaluation unit 2807 (corresponding to a reception intensity measurement unit or an error measurement unit) is supplied with a tuning index such as a tuning offset and electric field strength, and the transmission line Quality is evaluated by a quality evaluation unit 2807 (corresponding to a reception intensity measurement unit or an error measurement unit). At that time, if it is necessary to re-control the directivity with the antenna, a quality evaluation signal is provided to the microcomputer 2806 and converted into a directivity control signal for controlling the antenna unit. On the other hand, in order to decode the received signal, it is simultaneously input to the transmission path coding / decoding unit 2803 (corresponding to the reception intensity measurement unit or error measurement unit), and reverses the modulation process of the above-mentioned terrestrial digital broadcast. At that time, indicators for ensuring correct reception such as BER (bit error rate), Lock (frame lock signal), and error detection status of inner code / outer code are supplied to the transmission path quality evaluation unit 2807, and the antenna directivity is specified. This is used as an indicator of the necessity of sex control. Also, the bit stream decoded by the transmission path encoding / decoding unit is input to the information source encoding / decoding unit 2804 (corresponding to a reception intensity measuring unit or error measuring unit), and decoded into video, audio, data, and the like. Further, the decoded material is input to each presentation device output unit 2805 (corresponding to a display unit), and the video is presented to a presentation device such as a liquid crystal. The microcomputer 2806 also controls the entire decoding. In addition, the posture detection unit 2808 (corresponding to the posture detection sensor unit) detects the posture of the receiving terminal with respect to the ground surface in three axes, and sends a three-axis posture coordinate signal to the microcomputer. Is used for the antenna directivity control system. The antenna directivity is controlled so as to ensure the optimum receiving direction no matter what posture the receiving terminal takes.

FIG. 29 is a conceptual diagram of antenna directivity control. A directional beam is formed from the antenna portion with gain. For example, this beam is sequentially formed in the rotation direction, and reception quality evaluation / estimation is performed by a tuner unit or a transmission path coding / decoding unit. If the direction is further determined, beam tilt is performed next, the direction is further specified, and the optimum directivity is formed. It should be noted here that the antenna gain differs depending on the rotation direction and tilt, so that the reception quality at the receiving end is an indicator of directivity formation. A beam pattern that does not allow sufficient gain formation in the direction of arrival of radio waves is also possible depending on the attitude of the terminal, so instead of forming a beam in the arrival direction, directivity is formed in the direction with the best reception quality in the attitude of the terminal. Become. Next, in connection with the user interface, for example, using a device such as a trackball or a jog lever as a pointer that forms directivity in three dimensions, an antenna beam is formed as shown in FIG. 30 by setting the pointer. The reception quality is evaluated each time. The evaluated evaluation index is simultaneously guided to the user via the presentation device. FIG. 31 shows an example. The antenna beam formation direction gradually changes, and the gain is expressed in the beam size direction. Based on this guidance, the user manually performs optimum beam formation by controlling the pointer. It is also possible to select a means for automatically achieving beam forming in the optimum direction, such as a method for automatically searching every predetermined period to form an optimum beam, or a method for a user to designate an automatic search and perform a search after designation. it can.
Next, with reference to FIGS. 32, 33, and 34, a flow of forming an optimum beam using a control signal having means for detecting an attitude with three axes will be described. First, the search mode is set and the attitude of the terminal is fixed. Subsequently, a three-axis posture control signal in that posture is acquired. These α0, β0, and γ0 are held as initial postures.
As shown in FIG. 33, α0, β0, and γ0 represent the posture of the terminal on three axes and the angle from the axis. That is, the amount of change in angle on each axis from this initial posture is the correction amount from the initial posture. Next, control is performed so as to optimize the reception quality in this initial posture. First, the antenna directivity is also set with three axes (Xn: Yn: Zn) by rotation and tilt. Next, the transmission path quality evaluation signal at the time of forming the (Xn: Yn: Zn) beam is evaluated and acquired from the signal from the electric field strength of the tuner section, the bit error rate of the transmission path encoding / decoding section, and the like. The quality evaluation signal H (n) on the axis (Xn: Yn: Zn) is stored as a pair.

  FIG. 34 shows a method for acquiring the quality evaluation signal. The quality evaluation signal H (n) indicating the optimum reception quality is searched by electrically moving the directional beam pattern from the microcomputer from the microcomputer. As shown in the figure, the antenna beam forming direction for obtaining the optimum reception quality on the three axes is also expressed by the angle from the three axes. After the search, the forming direction of the antenna beam at the time of the reception quality signal indicating the maximum is stored as (X0: Y0: Z0). This is the end of the search. The antenna beam forming direction for obtaining the optimum reception quality in the attitude (α0, β0, γ0) in the three axes of the terminal is (X0: Y0: Z0). Next, the terminal posture is released as soon as the search mode is exited, and the posture is fixed. Here, “unlocking the posture” means, for example, releasing the search mode setting and shifting to the actual reception mode. When the mode is shifted to the reception mode, the three-axis posture detection function built in the terminal operates to detect the axis coordinates each time. When the axis coordinates are (αx, βy, γz), the terminal posture change is (α0−αx, β0−βy, γ0−γz). If this amount is reverse-corrected in the optimum beam forming direction obtained in the initial posture only by the change from the initial posture, the antenna beam pattern is always formed in the optimum direction detected in the initial posture even if the posture of the terminal is changed. it is conceivable that. It is of course possible to stop the automatic antenna beam pattern formation and change to the manual mode. With the above flow, it is possible to always control the optimal beam directivity. It is also possible to manually search for the optimum direction in the initial search in the initial posture and acquire the antenna beam forming direction, and thereafter use the same control method as described above. On the other hand, when controlling the directivity so as to form an optimum antenna beam in the initial posture, it is impossible to evaluate the directivity in all directions in three dimensions. The reception quality is evaluated for each block (divided into blocks every 10 degrees).

<Simple explanation of effect of Embodiment 4>
According to the portable broadcast receiving apparatus of this embodiment, control information can be generated based also on the detection result of the attitude detection sensor unit. Therefore, the electronic antenna unit can be three-dimensionally controlled so as to automatically have a desired directivity based on the control information.

<< Embodiment 5 >>
The fifth embodiment will be described below.
<Concept of Embodiment 5>
The concept of this embodiment will be described below. The present embodiment is described in the third or fourth embodiment, in which the control unit includes a selection unit that selects whether the input from the input unit is used for control or the control information generated by the control information generation unit is used for control. The present invention relates to a portable broadcast receiving apparatus.

<Clarification of configuration requirements>
In the following, the configuration requirements of this embodiment will be clarified.
FIG. 16 is a diagram illustrating an example of functional blocks of the present embodiment.
FIG. 18 is a diagram illustrating an example of specific functional blocks of the present embodiment.
Portable broadcast receiving apparatuses 1600 and 1800 include electronic antenna units 1601 and 1801, intensity measurement units 1602 and 1802, display units 1603 and 1803, input units 1604 and 1804, control units 1605 and 1805, and control information generation. Parts 1606 and 1806. The control unit includes automatic control units 1607 and 1807 and selection units 1608 and 1808. In addition, although not shown in the figure, you may have an attitude | position detection sensor part and attitude | position consideration control information generation means (control information generation part). Moreover, the structure which has an error measurement part instead of an intensity | strength measurement part may be sufficient.

<Description of configuration requirements>
Below, the component requirements of this embodiment are demonstrated.
(Electronic antenna part), (input part), (strength measuring part), (error measuring part), (display part), (automatic control means), (attitude detection sensor part), (control information generating part), (attitude Meaning control information generation means)
"Electronic antenna unit", "Input unit", "Intensity measurement unit", "Error measurement unit", "Display unit", "Automatic control means", "Attitude detection sensor unit", "Control information generation unit", "Attitude The “additional control information generating means” is the same as that described in the third or fourth embodiment, and thus the description thereof is omitted.

(Control part)
The “control unit” is configured to include selection means.
(Selection means)
The “selecting means” is configured to select whether input from the input unit is used for control or control information generated by the control information generating unit is used for control. Here, as a method of “selecting”, as an example, a method of preferentially selecting the information acquired first by the input unit and the control information generation unit, a method of selecting based on an input from the input unit, and control Examples include a method of selecting based on control information from the information generating unit, a method of selecting based on a measurement result in the intensity measuring unit or the error measuring unit, and the like. Based on the result selected by the selection means, the control unit electronically controls the electronic antenna unit. 18 shows a state in which the directivity control of the electronic antenna unit is performed based on the control information from the selected control information generation unit (the directivity is changed from the black portion to the thick line direction). Controlled).

<Process flow>
Below, the flow of the process of this embodiment is demonstrated.

FIG. 17 is a diagram for illustrating an example of a processing flow of the present embodiment.
First, in the portable broadcast receiving apparatus of this embodiment, the receiving step receives a one-segment broadcast (step S1701).
Next, in the portable broadcast receiving apparatus of this embodiment, the intensity measurement step measures the received electric field intensity of the one segment broadcast received in the reception step (step S1702).
Next, in the portable broadcast receiving apparatus of this embodiment, the display step visually displays the measurement result in the intensity measurement step (step S1703).
Next, in the portable broadcast receiving apparatus of this embodiment, the selection step selects whether to use input from the input unit for control or to use control information generated by the control information generation unit for control (step S1704). ).
Next, when the selection result in the selection step is <use input from the input unit for control>, the input step receives an input for controlling the directivity of the electronic antenna unit (step S1705). Then, the process proceeds to step S1706.
Next, in the portable broadcast receiving apparatus of the present embodiment, the control step performs directivity control of the electronic antenna unit according to the received input (step S1706). Then, the process ends.
Next, when the selection result in the selection step is <use control information generated by the control information generation unit for control>, the control information generation step is controlled based on the measurement result in the intensity measurement step. Information is generated (step S1707). Then, the process proceeds to step S1708.
Next, in the portable broadcast receiving apparatus of this embodiment, the automatic control step performs directivity control of the electronic antenna unit based on the control information generated in the control information generation step (step S1708). Then, the process ends.

<Example 6: Hardware configuration diagram>
Hereinafter, Example 6 of the present embodiment will be described.

  FIG. 19 is a schematic diagram illustrating an example of a hardware configuration of the portable broadcast receiving apparatus according to the present embodiment. The operation of each hardware component of the portable broadcast receiving apparatus will be described using this figure. As shown in this figure, the portable broadcast receiving apparatus 1900 includes an “active array antenna” (1909) in the electronic antenna unit 1901. Further, the portable broadcast receiving apparatus includes a “reception intensity measuring device” (1910) in the intensity measuring unit 1902. The portable broadcast receiving apparatus includes a “display controller” (1911) in the display unit 1903. Further, the portable broadcast receiving apparatus includes an “input controller” (1912) in the input unit 1904. The portable broadcast receiving apparatus includes an “antenna directivity controller” (1914), automatic control means 1907, and selection means 1908 in the control unit 1905. The automatic control means has an automatic controller 1915. The selection means has a selection switch 1916. The portable broadcast receiving apparatus also includes a “tuner” (1917). The portable broadcast receiving apparatus includes a “CPU (central processing unit)” (1918), a “storage device” (1919), a “main memory” (1920), and a “built-in clock” (1921). ing. These are connected to each other through a data communication path such as a “system bus” (1922), and perform transmission / reception and processing of information. The storage device stores various programs executed by the CPU (for example, a program for directivity control), contents, and the like. Further, the CPU reads out the program stored in the storage device in order to execute it. At the same time, the main memory provides a work area which is also a work area of the program. In addition, memory addresses are assigned to the main memory and storage devices, respectively, and programs executed by the CPU can exchange data by specifying and accessing the memory addresses to perform processing. It has become. The built-in clock has a function of measuring and outputting the current time.

  Hereinafter, a case where the active array antenna is controlled based on the selection result of the selection switch (in this embodiment, the automatic control means is selected) will be described. First, the active array antenna receives a one-segment broadcast. Next, the tuner selects a broadcast channel received by the active array antenna. Next, the received electric field strength measuring device measures the received electric field strength of the one-segment broadcast selected by the tuner, and outputs control information to the CPU. The CPU activates the directivity control program based on the control information. The CPU expands the orientation control program (address 01) stored in the storage device in the work area (address 10) of the main memory. The CPU calculates the directivity of the active array antenna to be controlled based on the control information in accordance with the directivity control program developed at the address 10, and passes control to the automatic controller. The automatic controller electronically controls the directivity of the active array antenna so as to maximize the received electric field intensity based on the calculation result. The above is an example of the function and operation of each hardware configuration. Note that the automatic controller and the selection switch may be configured only by hardware, may be configured only by software control, or may be configured by hardware and software. In addition, since the control method when using the input controller is the same as that in the third or fourth embodiment, the description thereof is omitted.

<Simple explanation of effect of embodiment 5>
According to the portable broadcast receiving apparatus of this embodiment, it is possible to select whether the input from the input unit is used for control or the control information generated by the control information generation unit is used for control.

<< Embodiment 6 >>
The sixth embodiment will be described below.
<Concept of Embodiment 6>
The concept of this embodiment will be described below. The present embodiment relates to the portable broadcast receiving apparatus according to the fifth embodiment, in which the control unit includes a selection control unit that controls the selection unit based on a measurement result in the measurement unit.

<Clarification of configuration requirements>
In the following, the configuration requirements of this embodiment will be clarified.
FIG. 20 is a diagram illustrating an example of functional blocks of the present embodiment.
FIG. 22 is a diagram illustrating an example of specific functional blocks of the present embodiment.
Portable broadcast receiving apparatuses 2000 and 2200 include electronic antenna units 2001 and 2201, intensity measuring units 2002 and 2202, display units 2003 and 2203, input units 2004 and 2204, control units 2005 and 2205, and control information generation. Parts 2006 and 2206. The control unit includes automatic control means 2007 and 2207, selection means 2008 and 2208, and selection control means 2009 and 2209. In addition, although not shown in the figure, you may have an attitude | position detection sensor part and attitude | position consideration control information generation means (control information generation part). Moreover, the structure which has an error measurement part instead of an intensity | strength measurement part may be sufficient.

<Description of configuration requirements>
Below, the component requirements of this embodiment are demonstrated.
(Electronic antenna part), (input part), (strength measuring part), (error measuring part), (display part), (automatic control means), (attitude detection sensor part), (control information generating part), (attitude Taste control information generating means), (selecting means)
"Electronic antenna unit", "Input unit", "Intensity measurement unit", "Error measurement unit", "Display unit", "Automatic control means", "Attitude detection sensor unit", "Control information generation unit", "Attitude The “additional control information generating unit” and the “selecting unit” are the same as those described in the fifth embodiment, and thus the description thereof is omitted.

(Control part)
The “control unit” is configured to have selection control means.
(Selection control means)
The “selection control unit” is configured to control the selection unit based on the measurement result in the measurement unit. Here, for example, when the received electric field strength is less than the reference value, the control information from the control information generating unit is used for “control”, and when the received electric field strength is less than the reference value, the input from the input unit is used. Control is used such that when the bit error rate is equal to or less than the reference value, input from the input unit is used, and when the bit error rate is equal to or less than the reference value, control information from the control information generation unit is used. Based on the control of the selection control means, the selection means electronically controls the electronic antenna unit. Note that the selection control unit 2209 in FIG. 22 shows a state in which the selection unit is controlled based on the measurement result in the measurement unit (in FIG. 22, since the received electric field strength is small, the control information from the control information generation unit). Is used).

<Process flow>
Below, the flow of the process of this embodiment is demonstrated.

FIG. 21 is a diagram for illustrating an example of a processing flow of the present embodiment.
First, in the portable broadcast receiving apparatus of this embodiment, the receiving step receives a one-segment broadcast (step S2101).
Next, in the portable broadcast receiving apparatus of this embodiment, the intensity measurement step measures the received electric field intensity of the one segment broadcast received in the reception step (step S2102).
Next, in the portable broadcast receiving apparatus of this embodiment, the display step visually displays the measurement result at the intensity measurement step (step S2103).
Next, in the portable broadcast receiving apparatus of this embodiment, the selection control step controls the selection means based on the measurement result in the intensity measurement step (step S2104).
Next, in the portable broadcast receiver of this embodiment, the selection step uses the input from the input unit for control based on the control result in the selection control step, or uses the control information generated by the control information generation unit. Whether to use for control is selected (step S2105).
Next, when the selection result in the selection step is <use input from the input unit for control>, the input step accepts an input for controlling the directivity of the electronic antenna unit (step S2106). Then, the process proceeds to step S2107.
Next, in the portable broadcast receiving apparatus of this embodiment, the control step performs directivity control of the electronic antenna unit according to the received input (step S2107). Then, the process ends.
Next, when the selection result in the selection step is <use control information generated by the control information generation unit for control>, the control information generation step is controlled based on the measurement result in the intensity measurement step. Information is generated (step S2108). Then, the process proceeds to step S2109.
Next, in the portable broadcast receiving apparatus of this embodiment, the automatic control step performs directivity control of the electronic antenna unit based on the control information generated in the control information generation step (step S2109). Then, the process ends.

<Example 7: Hardware configuration diagram>
Hereinafter, Example 7 of the present embodiment will be described.

  FIG. 23 is a schematic diagram illustrating an example of a hardware configuration of the portable broadcast receiving apparatus according to the present embodiment. The operation of each hardware component of the portable broadcast receiving apparatus will be described using this figure. As shown in this figure, the portable broadcast receiving apparatus 2300 includes an “active array antenna” (2310) in the electronic antenna unit 2301. The portable broadcast receiving apparatus includes a “reception intensity measuring device” (2311) in the intensity measuring unit 2302. The portable broadcast receiving apparatus includes a “display controller” (2312) in the display unit 2303. In addition, the portable broadcast receiving apparatus includes an “input controller” (2313) in the input unit 2304. The portable broadcast receiving apparatus includes an “antenna directivity controller” (2315), automatic control means 2307, selection means 2308, and selection control means 2309 in the control unit 2305. The automatic control means has an automatic controller 2316. The selection means has a selection switch 2317. The selection control means has a selection switch controller 2318. The portable broadcast receiving apparatus includes a “tuner” (2319). The portable broadcast receiving apparatus includes a “CPU (central processing unit)” (2320), a “storage device” (2321), a “main memory” (2322), and a “built-in clock” (2323). ing. These are connected to each other through a data communication path such as a “system bus” (2324), and perform transmission / reception and processing of information. The storage device stores various programs executed by the CPU (for example, a program for directivity control), contents, and the like. Further, the CPU reads out the program stored in the storage device in order to execute it. At the same time, the main memory provides a work area which is also a work area of the program. In addition, memory addresses are assigned to the main memory and storage devices, respectively, and programs executed by the CPU can exchange data by specifying and accessing the memory addresses to perform processing. It has become. The built-in clock has a function of measuring and outputting the current time.

  Below, the case where an active array antenna is controlled based on the control result in a selection control means is demonstrated. First, the active array antenna receives a one-segment broadcast. Next, the tuner selects a broadcast channel received by the active array antenna. Next, the received electric field strength measuring instrument measures the received electric field strength of the one-segment broadcast selected by the tuner and outputs the measurement result to the selection switch controller. The selection switch controller controls the selection switch based on the measurement result of the received electric field strength measuring instrument. The selection switch outputs information on which to select based on the control signal (in this embodiment, the automatic control means is selected) to the CPU. Based on the information, the CPU activates the directivity control program. The CPU expands the orientation control program (address 01) stored in the storage device in the work area (address 10) of the main memory. The CPU calculates the directivity of the active array antenna to be controlled in accordance with the directivity control program developed at address 10 and passes control to the automatic controller. The automatic controller electronically controls the directivity of the active array antenna so as to maximize the received electric field intensity based on the calculation result. The above is an example of the function and operation of each hardware configuration. Note that the automatic controller, the selection switch, and the selection switch controller may be configured only by hardware, may be configured only by software control, or may be configured by hardware and software. Further, since the control method when using the input controller is the same as that of the fifth embodiment, the description thereof is omitted.

<Simple explanation of effect of Embodiment 6>
According to the portable broadcast receiving apparatus of the present embodiment, the selection unit can be controlled based on the measurement result in the measurement unit.

<< Embodiment 7 >>
The seventh embodiment will be described below.
<Concept of Embodiment 7>
The concept of this embodiment will be described below. The present embodiment includes a position information holding unit that holds position information of a broadcast wave transmission antenna for one segment broadcast, and a position information acquisition unit that acquires its own position information, and the control information generation unit acquires The mobile phone according to any one of Embodiments 3 to 6, further comprising broadcast antenna-added control information generation means for generating control information based on the relative positional relationship between the position information and the held broadcast wave transmission antenna position information. The present invention relates to a type broadcast receiver.

<Clarification of configuration requirements>
In the following, the configuration requirements of this embodiment will be clarified.
FIG. 24 is a diagram illustrating an example of functional blocks of the present embodiment.
FIG. 26 is a diagram illustrating an example of specific functional blocks according to the present embodiment.
The portable broadcast receivers 2400 and 2600 include electronic antenna units 2401 and 2601, intensity measurement units 2402 and 2602, display units 2403 and 2603, input units 2404 and 2604, control units 2405 and 2605, and control information generation Sections 2406 and 2606, position information holding sections 2408 and 2608, and position information acquisition sections 2409 and 2609. In addition, the control unit has automatic control means 2407. In addition, the control information generation unit includes a broadcast antenna consideration control information generation unit 2410. Although not shown in the figure, the posture detection sensor unit, the posture-added control information generation unit (control information generation unit), and the control unit include a selection unit and a selection control unit. Also good. Moreover, the structure which has an error measurement part instead of an intensity | strength measurement part may be sufficient.

<Description of configuration requirements>
Below, the component requirements of this embodiment are demonstrated.
(Electronic antenna unit), (input unit), (strength measurement unit), (error measurement unit), (display unit), (control unit), (automatic control means), (posture detection sensor unit), (posture control) Information generation means), (selection means), (selection control means)
“Electronic antenna unit”, “Input unit”, “Intensity measurement unit”, “Error measurement unit”, “Display unit”, “Control unit”, “Automatic control means”, “Attitude detection sensor unit”, “Attitude control” Since “information generating means”, “selecting means”, and “selection controlling means” are the same as those in any one of the third to sixth embodiments, the description thereof is omitted.

(Location information holding unit)
The “position information holding unit” is configured to hold position information of a broadcast wave transmission antenna for one segment broadcast. Here, “position information” includes information such as latitude, longitude, altitude, and the like. As an example, the position information of the broadcast wave transmitting antenna of one segment broadcast is held by receiving the one segment broadcast and extracting the position information of the broadcast wave transmitting antenna from the one segment broadcast. Further, it may be written in the flash memory in advance. The position information of the broadcast wave transmitting antenna of the one-segment broadcast that is held is used by being output to broadcast antenna-added control information generating means of a control information generating unit to be described later. Note that the position information holding unit 2608 in FIG. 26 holds broadcast wave transmission antenna position information (northwest Chiba Prefecture).

(Location information acquisition unit)
The “position information acquisition unit” is configured to acquire its own position information. Here, the “own position information” is acquired by using GPS (Global Positioning System) as an example. For example, in the GPS system, position information is obtained using 24 satellites. The acquisition of position information by GPS basically uses the “three-point survey method”. Specifically, this is a method in which a GPS receiver (GPS terminal: portable broadcast receiver) receives information such as “GPS position” and “its frequency” and measures the current location (position information). Information that can be acquired is “position information (latitude, longitude, altitude)”, “time”, and “point velocity”. The acquired position information is used by being output to broadcast antenna-added control information generating means of a control information generating unit described later. In addition, direction information may be added to its own position information. The orientation information can be acquired using a gyro sensor or the like as described in the fourth embodiment, for example. Note that the position information acquisition unit 2609 in FIG. 26 has acquired its own position information (central Tokyo area).

(Control information generator)
The “control information generation unit” is configured to include broadcast antenna-added control information generation means.
(Broadcast antenna addition control information generation means)
The “broadcast antenna-added control information generating means” is configured to generate control information based on the relative positional relationship between the acquired position information and the held broadcast wave transmitting antenna position information. The control information generated by the broadcast antenna-added control information generating unit is used by being output to the automatic control unit of the control unit. In addition, in the broadcast antenna consideration control information generation means 2610 of FIG. 26, the measurement result in the intensity measurement step, the acquired position information (central Tokyo), and the held broadcast wave transmission antenna position information (north of Chiba Prefecture) Control information is generated based on the relative positional relationship with the western part. The generation of the control information is performed by referring to a list of tables stored in the storage device, for example.

  FIG. 35 is a diagram illustrating an example for explaining the relative positional relationship between the acquired position information and the held broadcast wave transmission antenna position information. In FIG. 35, the broadcast wave transmitting antenna position information held is a point indicated by an arrow “Northern Chiba”. The acquired position information is “Southern Tokyo”. It is assumed that it takes some time to search for the directivity of the initial antenna in such a relative positional relationship. In order to shorten this time, as shown in FIG. 35, for example, the directionality of the antenna is changed to near Saitama Prefecture (the direction of the tip of the black triangle), and the search is performed from near Saitama Prefecture. It can be expected to shorten the time. Thus, by knowing in advance the terrestrial digital broadcast transmission direction at the reception position at the mobile terminal (portable broadcast receiving apparatus), an optimum beam can be formed in a relatively short time when a search is started from the vicinity of the arrival direction. The detection method is to collect the position of the terminal (by GPS or the like) and the launch direction at the reception position of digital terrestrial broadcasting in advance with a portable terminal, and from the information, the antenna beam is detected from the vicinity estimated as the arrival direction. Start searching for. This shortens the search time. However, when the line of sight is not good, the reflected wave from another direction may be the optimum direction, so it is difficult to say that it is always fast, but in most cases it can be estimated to be fast.

<Process flow>
Below, the flow of the process of this embodiment is demonstrated.

FIG. 25 is a diagram for illustrating an example of a processing flow of the present embodiment.
First, in the portable broadcast receiving apparatus of the present embodiment, the receiving step receives a one-segment broadcast (step S2501).
Next, in the portable broadcast receiving apparatus of this embodiment, the intensity measurement step measures the received electric field intensity of the one-segment broadcast received in the reception step (step S2502).
Next, in the portable broadcast receiver of this embodiment, the position information acquisition step acquires its own position information (step S2503).
Next, in the portable broadcast receiving apparatus of the present embodiment, the control information generation step has a relative positional relationship between the measurement result in the intensity measurement step and the acquired position information and the held broadcast wave transmission antenna position information. Based on this, control information is generated (step S2504).
Next, in the portable broadcast receiving apparatus of this embodiment, the automatic control step performs directivity control of the electronic antenna unit based on the control information generated in the control information generation step (step S2505).

<Eighth embodiment: hardware configuration diagram>
Example 8 of this embodiment will be described below.

  FIG. 27 is a schematic diagram illustrating an example of a hardware configuration of the portable broadcast receiving apparatus according to the present embodiment. The operation of each hardware component of the portable broadcast receiving apparatus will be described using this figure. As shown in this figure, the portable broadcast receiving apparatus 2700 includes an “active array antenna” (2711) in the electronic antenna unit 2701. The portable broadcast receiving apparatus includes a “reception intensity measuring device” (2712) in the intensity measuring unit 2702. The portable broadcast receiving apparatus includes a “display controller” (2713) in the display unit 2703. The portable broadcast receiving apparatus includes an “input controller” (2714) in the input unit 2704. Further, the portable broadcast receiving apparatus includes an “antenna directivity controller” (2715) and automatic control means 2707 in the control unit 2705. The automatic control means has an automatic controller 2716. The portable broadcast receiving apparatus also includes a “tuner” (2720). The portable broadcast receiving apparatus includes a “CPU (central processing unit)” (2721), a “storage device” (2722), a “main memory” (2723), and a “built-in clock” (2724). ing. Then, they are connected to each other through a data communication path such as a “system bus” (2725) to perform transmission / reception and processing of information. The storage device stores various programs executed by the CPU (for example, a directivity control program), position information, time information, contents, and the like. Further, the CPU reads out the program stored in the storage device in order to execute it. At the same time, the main memory provides a work area which is also a work area of the program. In addition, memory addresses are assigned to the main memory and storage devices, respectively, and programs executed by the CPU can exchange data by specifying and accessing the memory addresses to perform processing. It has become. The built-in clock has a function of measuring and outputting the current time.

  The case where the automatic controller controls the active array antenna based on the control information generated based on the relative positional relationship between the acquired position information and the held broadcast wave transmission antenna position information will be described below. . First, the active array antenna receives a one-segment broadcast. Next, the tuner selects a broadcast channel received by the active array antenna. Next, the received electric field strength measuring device measures the position information, time information, the received electric field strength of the one-segment broadcast selected by the tuner, and the like. Next, the position information acquisition unit acquires its own position information and outputs the information to the CPU. The CPU activates the directivity control program based on the acquired information. The CPU expands the orientation control program (address 01) stored in the storage device in the work area (address 10) of the main memory. In accordance with the directivity control program developed at address 10, the CPU determines the relative positional relationship between the measurement result of the received electric field strength measuring instrument, the acquired position information, and the broadcast wave transmission antenna position information held in the flash memory. Based on the above, the directivity of the active array antenna to be controlled is calculated, and control is passed to the automatic controller. The automatic controller electronically controls the directivity of the active array antenna so as to maximize the received electric field intensity based on the calculation result. The above is an example of the function and operation of each hardware configuration. Note that the automatic controller may be configured only by hardware, may be configured only by software control, or may be configured by hardware and software. Further, the control method when using the input controller is the same as that in any one of the third to sixth embodiments, and thus the description thereof is omitted.

<Simple explanation of effect of Embodiment 7>
According to the portable broadcast receiving apparatus of this embodiment, control information can be generated based on the relative positional relationship between the acquired position information and the held broadcast wave transmission antenna position information.

  INDUSTRIAL APPLICABILITY The present invention can be used for a mobile portable broadcast receiving apparatus equipped with an antenna in a system that wirelessly transmits video, audio, data, and the like.

Functional block diagram of Embodiment 1 Process flow of embodiment 1 Specific functional block diagram of Embodiment 1 Hardware configuration diagram of Example 1 of Embodiment 1 Functional block diagram of Embodiment 2 Flow chart of processing of embodiment 2 Specific functional block diagram of Embodiment 2 Hardware configuration diagram of Example 2 of Embodiment 2 Functional block diagram of Embodiment 3 Process Flow of Embodiment 3 Specific functional block diagram of Embodiment 3 Hardware configuration diagram of Example 3 of Embodiment 3 Functional block diagram of Embodiment 4 Process Flow of Embodiment 4 Hardware configuration diagram of Example 4 of Embodiment 4 Functional block diagram of Embodiment 5 Process Flow of Embodiment 5 Specific functional block diagram of Embodiment 5 Hardware configuration diagram of Example 6 of Embodiment 5 Functional block diagram of Embodiment 6 Process Flow of Embodiment 6 Specific functional block diagram of Embodiment 6 Hardware configuration diagram of Example 7 of Embodiment 6 Functional block diagram of Embodiment 7 Process Flow of Embodiment 7 Specific functional block diagram of Embodiment 7 Hardware configuration diagram of Example 8 of Embodiment 7 Configuration diagram of Example 5 of Embodiment 4 Directivity (part 1) explanatory diagram of Example 5 of Embodiment 4 Directivity (part 2) explanatory diagram of Example 5 of Embodiment 4 Directivity (part 3) explanatory diagram of Example 5 of Embodiment 4 Flow chart of processing in Example 5 of Embodiment 4 Posture control explanatory diagram of Example 5 of Embodiment 4 Directivity (part 4) explanatory diagram of Example 5 of Embodiment 4 Position information explanatory diagram of Embodiment 7 Conceptual diagram of Embodiment 1 The figure for demonstrating the measurement result of Embodiment 1. The figure for demonstrating the flow of calculation of the directivity of an antenna based on the measurement result of Embodiment 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 0100 Portable broadcast receiver 0101 Electronic antenna part 0102 Intensity measurement part 0103 Display part 0104 Input part 0105 Control part

Claims (9)

An electronic antenna unit that can be electronically controlled to receive a one-segment broadcast;
An intensity measuring unit for measuring the received electric field intensity of the one-segment broadcasting in the electronic antenna unit;
A display unit for visually displaying the measurement result in the intensity measurement unit;
An input unit for receiving an input for controlling the directivity of the electronic antenna unit;
A control unit that controls the directivity of the electronic antenna unit according to the received input;
A portable broadcast receiving apparatus. An electronic antenna unit that can be electronically controlled to receive a one-segment broadcast;
An error measuring unit for measuring a bit error rate of a received signal of one-segment broadcasting in the electronic antenna unit;
A display unit for visually displaying the measurement result in the error measurement unit;
An input unit for receiving an input for controlling the directivity of the electronic antenna unit;
A control unit that controls the directivity of the electronic antenna unit according to the received input;
A portable broadcast receiving apparatus. A control information generation unit that generates control information based on the measurement result in the measurement unit;
The portable broadcast receiver according to claim 1, wherein the control unit includes an automatic control unit that performs the control based on the control information generated by the control information generation unit. It has a posture detection sensor that detects its own posture,
The portable broadcast receiving apparatus according to claim 3, wherein the control information generation unit includes a posture-added control information generation unit that generates control information based on a detection result of the posture detection sensor unit.   The portable broadcast reception according to claim 3 or 4, wherein the control unit includes selection means for selecting whether the input from the input unit is used for control or the control information generated by the control information generation unit is used for control. apparatus.   The portable broadcast receiving apparatus according to claim 5, wherein the control unit includes a selection control unit that controls the selection unit based on a measurement result of the measurement unit. A position information holding unit holding position information of a broadcast wave transmitting antenna for one segment broadcasting;
A position information acquisition unit that acquires its own position information;
Have
The control information generating unit includes broadcast antenna-added control information generating means for generating control information based on the relative positional relationship between the acquired position information and the held broadcast wave transmitting antenna position information. The portable broadcast receiver according to any one of the above. In a method of operating a portable broadcast receiving apparatus having an electronic antenna unit capable of electronic orientation control for receiving a one-segment broadcast,
A receiving step of receiving a one-segment broadcast;
An intensity measurement step of measuring the received electric field intensity of the one-segment broadcast received in the reception step;
A display step for visually displaying the measurement result in the intensity measurement step;
An input step for receiving an input for controlling the directivity of the electronic antenna unit;
A control step for controlling the directivity of the electronic antenna unit according to the received input;
A method for operating a portable broadcast receiving apparatus. In a method of operating a portable broadcast receiving apparatus having an electronic antenna unit capable of electronic orientation control for receiving a one-segment broadcast,
A receiving step of receiving a one-segment broadcast;
An error measurement step of measuring a bit error rate of the reception signal of the one-segment broadcast received in the reception step;
A display step for visually displaying the measurement result in the error measurement step;
An input step for receiving an input for controlling the directivity of the electronic antenna unit;
A control step for controlling the directivity of the electronic antenna unit according to the received input;
A method for operating a portable broadcast receiving apparatus.

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