KR20110023250A - Apparatus and method for controlling radio frequencyreceive sensitivity - Google Patents

Apparatus and method for controlling radio frequencyreceive sensitivity Download PDF

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Publication number
KR20110023250A
KR20110023250A KR1020090081002A KR20090081002A KR20110023250A KR 20110023250 A KR20110023250 A KR 20110023250A KR 1020090081002 A KR1020090081002 A KR 1020090081002A KR 20090081002 A KR20090081002 A KR 20090081002A KR 20110023250 A KR20110023250 A KR 20110023250A
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KR
South Korea
Prior art keywords
antenna
angle
reception sensitivity
wireless reception
data
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KR1020090081002A
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Korean (ko)
Inventor
김동규
Original Assignee
엘지전자 주식회사
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Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020090081002A priority Critical patent/KR20110023250A/en
Publication of KR20110023250A publication Critical patent/KR20110023250A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE: An apparatus and method for controlling radio frequency reception sensitivity are provided to automatically adjust an antenna installed at transmission and reception units at an angle having optimal radio frequency reception sensitivity. CONSTITUTION: A transmission device receives a broadcasting signal and converts the received broadcasting signal into transmission-available data. A reception device receives and processes the data wirelessly transmitted from the transmission device. The transmission device uses a wired or wireless network to receive the broadcasting signal and includes a set-top box which converts the received broadcasting signal into the data and transfers the data to the reception device. The reception device includes: a reception sensitivity control device; an antenna(410); an antenna driving unit(420) which adjust an angle of the antenna; a radio frequency reception sensitivity measurement unit(430) which measures the radio frequency reception sensitivity; a memory unit(440) the radio frequency sensitivity for each angle; an input unit which receives a user input; and a control unit(460) which controls the angle change of the antenna.

Description

Apparatus and method for controlling radio frequencyreceive sensitivity

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wireless communications, and more particularly, to a reception sensitivity control apparatus and a reception sensitivity control method thereof capable of setting an optimal wireless reception sensitivity using a received signal strength indicator (RSSI) and a packet error rate (PER). .

In general, a display device includes a broadcast receiving unit that receives and processes a broadcast signal from an airwave, a cable, and other external devices (VCR, DVD, etc.) and outputs it, and a display unit displaying an image of the processed broadcast signal on a screen. Can be.

Meanwhile, the broadcast receiving unit and the display unit may be separately configured, and in recent years, a wireless method of transmitting and displaying a broadcast signal received using a separate broadcast receiving device to a display device through wireless communication. A display system is provided.

According to an embodiment of the present invention, the antenna of the transmitter and the receiver are automatically adjusted to automatically set the angle of the antenna provided in the transmitter and the receiver to an angle having an optimal wireless reception sensitivity.

In addition, the embodiment according to the present invention allows the user to arbitrarily adjust the angle of the antenna provided in the transmitter and the receiver, so that the user can find and set the optimal antenna position directly.

Technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned above are clearly understood by those skilled in the art to which the embodiments proposed from the following description belong. Could be.

A reception sensitivity control method according to an embodiment of the present invention includes changing an angle of at least one antenna of a first antenna provided in a transmitter and a second antenna provided in a receiver; Reading wireless reception sensitivity data for data received according to the changed antenna angle; And setting the angle of the first antenna or the second antenna to an antenna angle having the highest wireless reception sensitivity using the read wireless reception sensitivity data.

In addition, the reception sensitivity control apparatus according to an embodiment of the present invention includes an antenna for data transmission and reception; An antenna driver for changing an angle of the antenna; A wireless reception sensitivity measurement unit for measuring a wireless reception sensitivity to data received through the antenna; A memory unit configured to store wireless reception sensitivity for each angle of the antenna measured by the wireless reception sensitivity measurement unit; And a controller for controlling an angle change of the antenna, extracting an angle according to the highest wireless reception sensitivity from the memory unit, and controlling the angle of the antenna to be fixed to the extracted angle.

According to an embodiment of the present invention, by changing the angle of the antenna provided in the transmitter and the receiver to find the optimal wireless reception sensitivity, the user manually moves the position of the receiver and the transmitter directly to find the optimal wireless reception sensitivity. In addition to eliminating the hassle of having to do, there is an effect to improve the user satisfaction by maintaining the optimal wireless reception sensitivity at all times.

The proposed embodiment will be described.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other inventions which are further deteriorated by addition, change, deletion, etc. of other components, or other embodiments included within the scope of the present invention can be easily made. I can suggest.

The term used in the present invention was selected as a general term widely used as possible, but in some cases, a term arbitrarily selected by the applicant, in which case the meaning is described in detail in the description of the invention, the name of a simple term It is to be clear that the present invention is to be understood as a meaning of the term.

In other words, in the following description, the word 'comprising' does not exclude the presence of other elements or steps than those listed.

1 is a block diagram illustrating an embodiment of a configuration of a data transmission / reception system, and the data transmission / reception system may include a transmission device 100 and a reception device 200.

Referring to FIG. 1, the transmission apparatus 100 receives a broadcast signal including an image from an air wave, a cable, or an external device, and converts the received broadcast signal into data in a form capable of being wirelessly transmitted. do.

The receiving device 200 receives and processes data wirelessly transmitted from the transmitting device 100, and for this purpose, at least one wireless communication standard for transmitting and receiving data wirelessly between the transmitting device 100 and the receiving device 200 is provided. It may be set in advance.

Meanwhile, the transmitting apparatus 100 may include an HDMI or a high-definition multimedia interface (HDMI) terminal, a universal serial bus (USB) terminal, a component terminal, an external input terminal, an RGB terminal, and an antenna to which an external device is connected. Various input terminals such as a cable terminal may be provided to receive data using the input terminal.

The transmitter 100 may be a set-top box (STB) that receives a broadcast signal through a wired or wireless network, converts the received broadcast signal, and wirelessly transmits the received broadcast signal to the receiver 200.

However, the transmitting device 100 according to the present invention is not limited to the set top box STB, and may include any kind of device capable of receiving a broadcast signal transmitted from the outside and wirelessly transmitting the received signal to the receiving device 200. .

For example, the transmitting device 100 according to the present invention may be provided in a portable terminal such as a computer or a mobile phone.

In addition, the reception device 200 may receive and process data transmitted wirelessly from the transmission device 100, and then transmit an image or audio included in the data to an external device.

For example, the reception apparatus 200 may convert an image signal wirelessly transmitted from the transmission apparatus 100 into a form that can be displayed on a display apparatus (not shown) and then output the converted image signal. More specifically, when the video signal wirelessly transmitted from the transmitting device 100 is encoded by a coding scheme such as MPEG, the receiving device 200 decodes the received video signal. And output to a display device (not shown).

According to an embodiment of the present invention, the transmitting device 100 and the receiving device 200 may be connected to various wireless communication standards, for example, wireless HD (WiHD), wireless home digital interface (WHDi), or wireless LAN (WiFi). Data can be transmitted and received using communication standards.

The WiHD uses a frequency band of about 60 GHz and transmits and receives data at a transmission rate of about 4 Gbps, thereby enabling transmission without compressing HD image data of 1080p (1920 × 1080). However, since the WiHD uses a high frequency of 60 GHz band, the data transmission / reception distance is about 10 m, and the transmission / reception quality may be easily affected by peripheral obstacles in the installation space.

The WHDi may transmit and receive data at a transmission rate of about 1.8 Gbps using a frequency band of about 5 GHz. In addition, since the WHDi uses a relatively low frequency band of 5 GHz, the transmission / reception distance is about 30 m, and the transmission / reception quality may not be greatly influenced by peripheral obstacles in the installation space. On the other hand, according to a transmission rate of about 1.8 Gbps, when the HD video data of 1080p (1920 x 1080) is to be transmitted using the WHDi, the transmitter 100 needs to compress and transmit the HD video data.

In addition, the WiFi may transmit and receive data at a transmission rate of about 54 Mbp using a frequency band of 2.4 GHz. Since the WiFi uses a low frequency band of 2.4 GHz, the transmission and reception distance is about 50 to 200 m, and the transmission and reception quality may be almost unaffected by peripheral obstacles in the installation space. On the other hand, according to a low transmission rate of about 54Mbp, if you want to transmit 1080p (1920 × 1080) HD video data using the WiFi, the transmitting device 100 must compress and transmit the HD video data, accordingly An image quality deterioration may occur in an image signal received by the reception apparatus 200.

Meanwhile, in addition to the wireless communication standard described above, the transmitting device 100 and the receiving device 200 may use various short range wireless communication standards such as Bluetooth, ZigBee, or binary CDMA. It is possible to wirelessly transmit and receive data using communication standards such as).

2 is a block diagram illustrating another embodiment of the configuration of a data transmission / reception system. The data transmission / reception system may include a transmission device 100 and a plurality of reception devices 200, 210, and 220.

3 is a block diagram illustrating another embodiment of the configuration of a data transmission / reception system. The data transmission / reception system may include a plurality of transmission devices 100, 110, and 120 and a reception device 200. .

Referring to FIG. 2, the transmitting device 100 may be connected to the plurality of receiving devices 200, 210, and 220 through a wireless network. That is, the transmitting apparatus 100 may convert data received from the outside into data capable of wireless transmission, and then wirelessly transmit the data to at least one of the plurality of receiving apparatuses 200, 210, and 220.

For example, the transmitting device 100 may select one or more receiving devices from among a plurality of receiving devices 200, 210, and 220 to receive data, and receive data selected from the outside by the user. Wireless transmission.

To this end, the transmitter 100 may include a plurality of wireless transmitters (not shown) corresponding to each of the plurality of receivers 200, 210, and 220, and each of the plurality of wireless transmitters (not shown). May wirelessly transmit video and audio data to a corresponding receiving device.

The wireless communication standard for data transmission and reception may be the same or different from each other in each of the plurality of receiving apparatuses 200, 210, and 220. For example, wireless communication standards for receiving data from each of the plurality of receiving apparatuses 200, 210, and 220 are different from each other according to the performance or the installation location of each of the plurality of receiving apparatuses 200, 210, and 220. It may be set differently.

Meanwhile, the transmitting device 100 may include a number smaller than the number of the plurality of receiving devices 200, 210, and 220, for example, one wireless transmitter (not shown). In this case, the transmitting device 100 ) May wirelessly transmit data using multi-channel communication, that is, using a plurality of channels corresponding to each of the plurality of receiving apparatuses 200, 210, and 220.

Referring to FIG. 3, the plurality of transmitting devices 100, 110, and 120 may be connected to the receiving device 200 through a wireless network. That is, the plurality of transmission apparatuses 100, 110, and 120 may convert data received from the outside into data capable of wireless transmission, and then wirelessly transmit the data to the reception apparatus 200. At least one or more pieces of data transmitted from the transmitting devices 100, 110, and 120 may be selected and received.

Referring to FIG. 4, the receiver 200 according to an exemplary embodiment of the present invention may be configured as a display apparatus 300 including a display module 310.

That is, the transmitting apparatus 100 receives a broadcast signal from the outside and wirelessly transmits the broadcast signal to the receiving apparatus 200, and the receiving apparatus 200 provided in the display apparatus 300 may display the wirelessly transmitted data. The image signal may be processed and output to the display module 310.

The display module 310 may display an image using an image signal input from the receiving device 200, and for this, a liquid crystal display (LCD), a plasma display panel (PDP), an electro luminescent display (ELD), and a VFD It may include a display panel (not shown) of various display methods such as a (Vacuum Fluorescent Display).

5 is a diagram showing the configuration of a reception sensitivity control apparatus according to an embodiment of the present invention.

Here, the reception sensitivity control device may be a device provided in the transmission device 100, or may be a device provided in the reception device 200. That is, the reception sensitivity control apparatus shown in FIG. 5 may be provided in the transmitter 100 or may be provided in the receiver 200.

However, the reception sensitivity control device shown in FIG. 5 is preferably provided in the reception device 200. In order to adjust the angle of the antenna provided in the transmitter 100, a low late PHY (LRP) channel, which is a communication channel, is provided. By transmitting a control signal for changing the antenna angle from the receiver to the transmitter, it is possible to change the angle of the antenna provided in the transmitter 100.

Referring to FIG. 5, the reception sensitivity control device is received through an antenna 410 for transmitting and receiving data, an antenna driver 420 for changing an angle of the antenna 410, and an antenna 420. Wireless reception sensitivity measuring unit 430 for measuring the wireless reception sensitivity to the data, and a memory unit for storing the wireless reception sensitivity for each angle of the antenna 410 measured by the wireless reception sensitivity measurement unit 430 And controlling the angle change of the key input unit 450 and the antenna 410 for receiving a request command from the user, extracting the angle according to the highest wireless reception sensitivity from the memory unit 440, and extracting the extracted angle. The controller 460 is configured to control the angle of the antenna 410 to be fixed at an angle.

The antenna 410 transmits data to the outside or receives data transmitted from the outside. Here, the data may be an RF signal, control data, or beacon data.

In this case, the wireless reception sensitivity of the data received through the antenna 410 may be determined by the distance between the transmitter 100 and the receiver 200, the presence of peripheral obstacles, or the direction (angle) of the antenna 410. Can be affected.

In particular, when data is transmitted and received between the transmitting apparatus 100 and the receiving apparatus 200 using WiHD having a high frequency band of several tens of GHz, for example, a frequency band of about 60 GHz, the data transmitting / receiving distance is short as about 10 m. In addition, due to the high linearity, the signal reception sensitivity may be affected by surrounding obstacles.

In addition, when the signal wireless reception sensitivity is lowered as described above, data loss may occur between the transmitting device 100 and the receiving device 200, and thus an image received and displayed through the receiving device 200 is displayed. The quality of may be degraded.

According to an exemplary embodiment of the present disclosure, an antenna angle having an optimal signal reception sensitivity is detected by changing the angle of at least one of the antenna of the transmitting apparatus 100 or the antenna of the receiving apparatus 200, and detecting the antenna angle. By fixing the antenna at a predetermined angle, it is possible to transmit and receive data with an optimal wireless signal reception sensitivity between the transmitting device 100 and the receiving device 200.

The antenna driver 420 may change the angle of the antenna 410 by changing the direction of the RF antenna module including the IC in which the antenna 410 is integrated, and for this, a motor rotating under the control of the controller 460. (motor, not shown) and one or more gears for transmitting the rotation of the motor (not shown) to adjust the angle of the RF antenna module equipped with the antenna 410.

The wireless reception sensitivity measuring unit 430 measures the wireless reception sensitivity of the data received according to the antenna angle. Here, the wireless reception sensitivity may be a received signal strength indicator (RSSI) or a packet error rate (PER).

The memory unit 440 stores wireless reception sensitivity data measured by the wireless reception sensitivity measuring unit 430, which is an EEPROM (Electrically Erasable Programmable Read-Only Memory), which is one of nonvolatile memories (NVM and NVRAM). Can be implemented.

The key input unit 450 is a means for receiving a request command from a user, and may be implemented as a local key input unit provided at one side of the reception sensitivity control device or an infrared receiver unit for receiving an infrared signal transmitted through a remote controller. have.

The control unit 460 controls the angle adjustment of the antenna 410, and accordingly, based on the wireless reception sensitivity measured by the wireless reception sensitivity measuring unit 430 according to the angle change of the antenna 410, The angle of the antenna is fixed at an angle having a high wireless reception sensitivity.

At this time, if the antenna 410 is an antenna provided in the transmitting device 100, the control unit 460 fixes the antenna provided in the receiving device 200 in a specific position, and accordingly By varying the angle, the resulting wireless reception sensitivity is measured. On the contrary, if the antenna 410 is an antenna provided in the receiving apparatus 200, the controller 460 fixes the antenna provided in the transmitting apparatus 100 at a specific position and accordingly, the receiving apparatus 200. The angle of the antenna 410 provided at) is changed, and the wireless reception sensitivity is measured accordingly.

When the wireless reception sensitivity is measured as described above, the controller 460 checks the antenna angle having the highest value among the measured wireless reception sensitivity, and accordingly, the angle of the antenna 410 is determined as the checked angle. To be fixed.

In this case, the wireless reception sensitivity has a RSSI and a PER value. Since the RSSI is a value indicating a received signal strength, a higher RSSI value means that the wireless reception sensitivity is better, and the PER is a value indicating a packet error rate. The lower the PER value, the better the wireless reception sensitivity is.

Accordingly, the controller 460 detects the angle of the antenna corresponding to the largest value among the measured received signal strengths (RSSI) or the angle of the antenna corresponding to the smallest value among the measured packet error rates (PER). To set the angle of the antenna 410.

In addition, the controller 460 outputs a message for resetting the angle of the antenna 410 based on a wireless reception sensitivity of data periodically received while the angle of the antenna 410 is fixed. Be sure to

6 and 7 illustrate examples of a message for resetting an antenna angle formed by an embodiment of the present invention.

6 and 7, the message includes an automatic setting menu for automatically resetting the angle of the antenna, and a manual setting menu for resetting the angle of the antenna while manually shifting the angle of the antenna.

Accordingly, when the user selects the automatic setting menu, the antenna angle is automatically changed as described above, and the antenna angle having the highest reception sensitivity is automatically set.

In addition, when the user selects the manual setting menu, as shown in FIG. 7, the angle adjustment menu of the antenna is separately output, and accordingly, the user selects a moving direction of the antenna on the angle adjustment menu to select the antenna. You can reset the angle.

As described above, in the embodiment of the present invention, the antenna angle having the highest wireless reception sensitivity may be automatically retrieved while the angle of the antenna is automatically changed, and the user arbitrarily adjusts the angle of the antenna, and the antenna of the antenna is preferred. The antenna state of the transmitter or receiver may be set at an angle.

However, even if the angle of the antenna is adjusted as described above, there is a possibility that normal radio reception sensitivity may not be measured depending on the transmitter, receiver, and mounting position.

Accordingly, when the controller 460 adjusts the angle of the antenna in all directions as described above, but normal wireless reception sensitivity is not measured, the controller 460 displays a message for changing the mounting position of the transmitter or the receiver. do.

8 is a flowchart illustrating a step-by-step method for controlling the reception sensitivity of the reception sensitivity control apparatus according to the embodiment of the present invention.

Referring to FIG. 8, the antenna driver 420 changes the angle of the antenna 410 under the control of the controller 460 (step 100).

For example, the antenna driver 420 may change the angle of the antenna 410 by changing the direction of the RF antenna module including the IC in which the antenna 410 is integrated, and control the control of the controller 460 therefor. It may be configured to include one or more gears for adjusting the angle of the RF antenna module equipped with the antenna 410 by transmitting the rotation of the motor (not shown) and the motor (not shown) to rotate. have.

As the angle of the antenna 410 is changed, the wireless reception sensitivity of the data received for each angle is measured (step 410). For example, the measured signal reception sensitivity may be a received signal strength indicator (RSSI) or a packet error rate (PER).

Meanwhile, the transmission device 100 may wirelessly transmit a test signal for measuring the signal reception sensitivity to the reception device 200. Unlike the above embodiment, a separate module for measuring the wireless reception sensitivity of the reception signal is provided. It may be further provided.

In addition, the method of measuring the wireless reception sensitivity according to the angle of the antenna 410 in step 410, while measuring the wireless reception sensitivity at a predetermined time period while the angle of the antenna 410 is changed, the measured antenna ( The wireless reception sensitivity for each angle of the 140 is stored in the memory unit 440.

The controller 460 detects an angle of the antenna 410 having the highest wireless reception sensitivity by using the measured wireless reception sensitivity of the antenna 1410 at operation 120.

For example, when the signal reception sensitivity is the reception signal strength RSSI, the controller 460 may detect an angle of the antenna 410 corresponding to the largest value among the measured reception signal strengths RSSI. have.

In addition, when the signal reception sensitivity is a packet error rate (PER), the controller 460 may detect an angle of the antenna 410 corresponding to the smallest value among the measured packet error rates (PER).

The controller 460 fixes the antenna 410 at an angle having the highest signal reception sensitivity detected in step 420 (step 130). For example, the controller 460 outputs a signal for controlling the change to the detected angle to the antenna driver 420, and the antenna driver 420 receiving the control signal includes an antenna 410. The antenna 410 may be controlled to have the detected angle by changing the direction of the RF antenna module.

In addition, when the normal wireless reception sensitivity is not detected in the above, the control unit 460 displays a message accordingly so that the transmitter 100 or the receiver 200 itself is moved.

In addition, in the above description, only the angle of the antenna is automatically adjusted, but the angle of the antenna 410 may be changed to an angle corresponding to the up, down, left, and right arrow keys input by the user. In addition, when the angle of the antenna 410 is changed, by providing the wireless reception sensitivity information corresponding to the changed angle, the user can more easily set the angle of the antenna 410.

In addition, the controller 460 may check the radio reception sensitivity of the periodically received data, and accordingly, if the checked radio reception sensitivity is abnormal, a message for resetting the angle of the antenna may be displayed. .

As described above, according to an embodiment of the present invention, by changing the angles of the antennas provided in the transmitter and the receiver to find the optimal wireless reception sensitivity, the user manually searches for the optimal wireless reception sensitivity. Not only does it eliminate the hassle of moving the location, but it also improves user satisfaction by always maintaining optimal wireless reception sensitivity.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited thereto. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 is a view showing the configuration of a data transmission and reception system.

2 is a view showing another embodiment of the configuration of a data transmission and reception system.

3 is a view showing another embodiment of the configuration of a data transmission and reception system.

4 is a diagram illustrating a configuration of a display apparatus according to an exemplary embodiment of the present invention.

5 is a view showing the configuration of a reception sensitivity control apparatus according to an embodiment of the present invention.

6 and 7 illustrate an example of a message for resetting an antenna angle formed by an embodiment of the present invention.

8 is a flowchart illustrating a step-by-step method for controlling the reception sensitivity of the reception sensitivity control apparatus according to the embodiment of the present invention.

Claims (15)

Changing an angle of at least one of the first antenna provided in the transmitter and the second antenna provided in the receiver; Reading wireless reception sensitivity data for data received according to the changed antenna angle; And, And setting the angle of the first antenna or the second antenna to an antenna angle having the highest wireless reception sensitivity using the read wireless reception sensitivity data. The method of claim 1, And the wireless reception sensitivity data is at least one of a received signal strength indicator (RSSI) value and a packet error rate (PER) value. 3. The method of claim 2, The antenna angle having the highest wireless reception sensitivity is any one of the antenna angle with the highest RSSI value or the antenna angle with the lowest PER value. The method of claim 1, Changing the antenna angle is And changing the other antenna angle in a state in which one of the first and second antennas is fixed. The method of claim 4, wherein If the angle of the first antenna or the second antenna is set, the receiving sensitivity control method further comprising the step of setting the angle of the other antenna in a state in which the antenna is fixed to the set angle. The method of claim 1, And the angle of the antenna is changed in up / down / left / right directions based on a direction key input from a user. The method of claim 1, And displaying a message for resetting angles of the first antenna and the second antenna based on a wireless reception sensitivity of data received through the reception unit. The method of claim 1, And displaying a message for shifting the mounting position of the transmitter or receiver according to the state of the wireless reception sensitivity. An antenna for data transmission and reception; An antenna driver for changing an angle of the antenna; A wireless reception sensitivity measurement unit for measuring a wireless reception sensitivity to data received through the antenna; A memory unit configured to store wireless reception sensitivity for each angle of the antenna measured by the wireless reception sensitivity measurement unit; And, And a control unit for controlling an angle change of the antenna, extracting an angle according to the highest wireless reception sensitivity from the memory unit, and controlling the angle of the antenna to be fixed to the extracted angle. controller. The method of claim 9, And the wireless reception sensitivity measuring unit measures at least one of a received signal strength indicator (RSSI) and a packet error rate (PER) for the received data. The method of claim 10, And the controller is configured to fix the angle of the antenna to at least one of an angle having a highest RSSI value and an angle having a lowest PER value. The method of claim 9, It further comprises a key input unit for receiving a request command from the user, And the control unit changes the angle of the antenna according to a user command input through the key input unit. The method of claim 9, The antenna is a reception sensitivity control device, characterized in that the antenna located in the transmission unit for transmitting the RF signal. The method of claim 9, The antenna is a reception sensitivity control device, characterized in that the antenna located in the receiver for receiving the RF signal transmitted through the transmitter. The method of claim 9, And the control unit outputs a message for moving a mounting position of the reception sensitivity control device based on the measured state of the wireless reception sensitivity.
KR1020090081002A 2009-08-31 2009-08-31 Apparatus and method for controlling radio frequencyreceive sensitivity KR20110023250A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016114447A1 (en) * 2015-01-16 2016-07-21 엘지전자 주식회사 Image display device and method for operating same
KR101880707B1 (en) * 2018-01-22 2018-07-20 이용안 System for controlling direction of directional antenna and method for controlling direction thereof
CN110994183A (en) * 2019-12-27 2020-04-10 维沃移动通信有限公司 Control device and control method for signal receiving angle
WO2023163359A1 (en) * 2022-02-23 2023-08-31 주식회사 지티엘 Satellite antenna positioner having satellite tracking function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016114447A1 (en) * 2015-01-16 2016-07-21 엘지전자 주식회사 Image display device and method for operating same
US10142682B2 (en) 2015-01-16 2018-11-27 Lg Electronics Inc. Image display device and method for operating same
KR101880707B1 (en) * 2018-01-22 2018-07-20 이용안 System for controlling direction of directional antenna and method for controlling direction thereof
CN110994183A (en) * 2019-12-27 2020-04-10 维沃移动通信有限公司 Control device and control method for signal receiving angle
CN110994183B (en) * 2019-12-27 2022-03-25 维沃移动通信有限公司 Control device and control method for signal receiving angle
WO2023163359A1 (en) * 2022-02-23 2023-08-31 주식회사 지티엘 Satellite antenna positioner having satellite tracking function

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