KR20010003030A - Automatic antenna device for using the mobile communication terminal - Google Patents

Abstract

PURPOSE: An automatic antenna device is provided to be capable of automatically expanding and constricting an antenna without contact of a user's hand with the antenna. CONSTITUTION: An automatic antenna device for a mobile communication terminal comprises an antenna guide groove(6) which is formed at right and left sides of a main body(4) so as for an antenna to be expanded and constricted. An antenna support(7) is coupled with the antenna guide groove(6), and supports the antenna(5). A lower stopper(9) and an upper stopper(8) are installed at lower and upper portions of the antenna guide groove(6). An antenna ground portion(10) is installed at a lower part of the antenna. One end of a wire(3) is coupled with the upper stopper of the antenna, and the other end of the wire(3) is coupled with a rotation shaft of a motor(2), which is controlled by a control part(1).

Description

Automatic antenna device for using the mobile communication terminal}

The present invention relates to an automatic antenna device for a mobile communication terminal, and more particularly, to an automatic antenna device for a mobile communication terminal capable of automatically extending and contracting a mobile communication terminal antenna.

Recently, as the mobile communication is popularly activated, the demand of the mobile communication terminal is increasing rapidly, and the functional demand for the mobile communication terminal itself is increasing day by day. Therefore, mobile phone manufacturers are developing new products that add various functions to the terminals themselves to satisfy such functional requirements.

Therefore, since currently commercialized mobile communication terminals are considerably lighter than the initial mobile communication terminals and include various functions, practically, consumers can use mobile communication with great convenience.

However, since the mobile communication terminal is connected to the wireless communication base station at a specific frequency to make a call, the mobile communication terminal is used according to the electric field strength of a signal (analog signal or digital signal) emitted from the wireless communication base station in the place where the wireless communication terminal is used. The quality of the call is determined. In other words, where the field strength is weak, the call cannot be made or a considerable noise can occur, and when it becomes below a certain level, the call itself may be impossible. In this case, the problem of poor communication, etc. is solved to some extent by increasing the electric field strength received by the terminal by extending the antenna mounted in the user's mobile communication terminal by hand. This antenna structure is common to all analog terminals, digital terminals, and PCS terminals that are currently in use, and mobile communication service companies have secured more base stations to reduce this phenomenon. By mounting an antenna having excellent strength characteristics in a product, this situation is intended to solve this problem. In addition, the electromagnetic wave generated from the terminal during the call is generally known to be harmful to the human body. In particular, the recent experiment results show that the electromagnetic wave is significantly reduced than when the antenna of the terminal is contracted, but most terminals The users have a problem that the user is exposed to considerable electromagnetic waves by continuing the call with the antenna contracted.

Next, a schematic configuration and operation of a basic conventional antenna device for a mobile communication terminal will be described with reference to FIG.

In the drawings, reference numeral 4 denotes a main body, 5 an antenna, 6 an antenna guide groove, 7 an antenna support, 8 a lower stopper, 9 an upper stopper, and 10 an antenna ground portion.

First, an antenna guide groove 6 is formed on the right or left side of the main body 4 to allow the antenna 5 to extend and contract internally. The antenna guide groove 6 allows the antenna 5 to be stabilized. Elongation / contraction is possible. In addition, an antenna support 7 which is internally coupled to the antenna guide groove 6 and supports the antenna when the antenna 5 is extended / contracted is provided. In addition, by providing the lower stopper 8 and the upper stopper 9 at the specific upper and lower portions of the antenna guide groove 6 and the antenna ground portion 10 at the lower portion of the antenna, the antenna 5 is somewhat to some extent. Once stretched, the antenna ground 10 is grounded to the lower stopper 8 so that the antenna 5 is no longer stretched. Conversely, if the antenna 5 is contracted to some extent, the antenna ground 10 is It is grounded to the stopper 9 so that the antenna 5 is no longer contracted. Here, the distance between the lower stopper 8 and the upper stopper 9 is proportional to the length of the antenna 5 protruding out of the main body 4, which has a very important meaning. That is, the frequency currently used for mobile communication is divided into 800 MHz and 1.6 GHz. The higher the frequency, the shorter the length of the antenna, and the lower the frequency, the longer the length of the antenna. Therefore, the interval between the lower stopper 8 and the upper stopper 9 is appropriately determined and used depending on the frequency of use of the cellular phone.

Therefore, when the user of the mobile communication terminal directly decides whether or not to extend the antenna according to the electric field strength from the mobile communication base station of the mobile communication service provider, the user directly pulls the top of the antenna by hand to the antenna. After the grounding portion 10 is grounded to the lower stopper 8, a call is made to attempt.

However, actual mobile communication terminal users attempt to make a call with almost no extension of the antenna 5 due to inconvenience in use. Therefore, if a certain electric field strength is secured at the place where the call is attempted, the call is successful. However, because of the characteristics of mobile communication, the place can be moved even during a call. It may be accompanied by noise or disconnected calls. As a result, when most terminal users attempt to make a call while moving from place to place, when the electric field strength becomes weak, there is an inconvenience of having to extend the antenna 5 immediately during the call in order to maintain a possible field strength.

However, as described above, since the length of the antenna is already determined according to the frequency currently used by the terminal, when the user is connected with the antenna 5 to extend the antenna during a call, The band of radio waves received by the instantaneous antenna may be inconsistent with the antenna to which the hand is connected. As a result, in the worst case, there was a problem that the call was cut off.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and to provide an automatic antenna device for a mobile communication terminal which can realize the extension or contraction of the antenna automatically without the mobile terminal user touches the antenna at all. will be.

1 is a schematic diagram showing an automatic antenna device for a mobile communication terminal according to the present invention;

2 is an enlarged view specifically showing the automatic antenna device of the present invention in FIG.

3 is a process flow diagram illustrating a method of operating an antenna in accordance with the present invention.

4 is a schematic diagram showing an antenna structure for a conventional mobile communication terminal.

An antenna guide groove 6 is provided on the left side or the right side of the inside of the terminal main body, and the antenna 5 moves up and down along the antenna guide groove 6, and an antenna is provided at one end of the antenna 5. In the automatic antenna device for a mobile communication terminal in which the grounding part 10 is provided, the motor 2 and one end of the motor 2 are connected to the rotating shaft, and the other end thereof is connected to the antenna grounding part 10. Wire 3; And a control unit 1 for controlling the motor 2 to be rotatable in the forward or reverse direction.

In addition, the control unit 1 detects the start and end of the call, sends a forward signal to the motor 2 when the call starts, and sends a reverse signal to the motor 2 when the call ends. It is characterized in that it is configured to allow for elongation and contraction.

In addition, the controller 1 senses electromagnetic waves emitted from the terminal itself, and sends a forward signal to the motor 2 when the electromagnetic wave is above a certain level, and reverses the motor 2 when the electromagnetic wave is below a certain level. By sending a signal, it is characterized in that the antenna 5 is configured to be able to expand and contract.

In addition, the control unit 1 detects the electric field strength reaching the terminal after the start of the call, and sends a forward signal to the motor 2 when the electric field strength is lower than or equal to a specific level. It is characterized in that the antenna 5 is configured to be able to extend and contract by sending a reverse signal to (2).

(Example)

Next, the present invention will be described in detail with reference to FIGS. 1 to 3.

1 is a schematic view showing an automatic antenna device for a mobile communication terminal according to the present invention, Figure 2 is an enlarged view showing in detail the automatic antenna device of the present invention in Figure 1, Figure 3 is an antenna according to the present invention A process flow diagram illustrating how it works.

In the drawings, reference numeral 1 denotes a control unit, 2 a motor, 3 a wire, 4 a main body, 5 an antenna, 6 an antenna guide groove, 7 an antenna support, 8 a lower stopper, 9 an upper stopper, and 10 an antenna ground portion. Indicates.

First, an antenna guide groove 6 is formed on the right or left side of the main body 4 so that the antenna 5 can be extended and contracted internally, and through this groove 6, stable extension / Shrinkage is possible. In addition, an antenna support 7 which is internally coupled to the antenna guide groove 6 and supports the antenna when the antenna 5 is extended / contracted is provided. In addition, by providing the lower stopper 8 and the upper stopper 9 at the specific upper and lower portions of the antenna guide groove 6 and the antenna ground portion 10 at the lower portion of the antenna, the antenna 5 is somewhat to some extent. Once stretched, the antenna ground 10 is grounded to the lower stopper 8 so that the antenna 5 is no longer stretched, and conversely, if the antenna 5 shrinks to some extent, the antenna ground 10 is Grounded to the upper stopper 9, the antenna 5 is no longer contracted.

One end of the wire 3 is coupled to the upper stopper of the antenna, and a rotation shaft of the motor 2 is coupled to the other end of the wire 3, so that the motor 2 rotates the wire 3 so that the wire ( It is adapted to rotate with a specific rotational torque which enables extension and contraction of the antenna 5 coupled to 2). On the other hand, this wire can also use certain gears that can be connected to the motor 2 to stretch or retract the antenna 5. In addition, the motor is capable of controlling rotation and reversal by the controller 1. On the other hand, the motor according to the present invention may use the motor as it is currently used for the vibration function of the terminal.

In addition, when the antenna ground portion 10 is grounded to the lower stopper 8 and the upper stopper 9, the controller 1 is configured to recognize the ground and stop the motor 2. Herein, the control unit 1 may be a separate control unit 1 which is responsible only for forward and reverse rotation of the motor 2, and may be installed in a processing device (not shown) installed in the terminal to control the function of the terminal. It may be used in addition to the above function.

On the other hand, the wire 3 according to the present invention is to push the antenna ground portion 10 while the wire connected to the rotating shaft of the motor 2 is released when the motor rotates in the forward direction, the wire is rotated again in the reverse direction Is pulled to the rotating shaft of the motor (2) to pull the antenna ground (10).

Next, the antenna device according to the present invention may be implemented in various modes by a program stored in the terminal.

That is, although an automatic mode, a reception sensitivity mode, a semi-automatic mode, and the like can be set, it will be apparent to those skilled in the art that the concept can be implemented in various ways.

(First embodiment)

In the present embodiment, an automatic mode in which the antenna 5 operates when the user starts and ends communication will be described with reference to FIG.

When the user initiates communication, i.e., opens a flip in the case of a flip type terminal or presses a start switch (SEND switch in the case of a normal terminal) after inputting a telephone number, the control unit 1 senses such a communication start state and transmits it to the motor 2. Forward rotation signal. Thus, this forward rotation signal is applied to the motor and the motor starts to rotate in the forward direction. As a result, when the wire 3 wound around the motor is released, the antenna 5 starts to protrude through the antenna guide groove 6 by pushing the antenna ground portion 10 connected to the wire, and the antenna ground portion ( When 10) reaches the lower stopper 8, the control unit 1 detects this and sends a stop signal to the motor 2 so that the antenna completely protrudes to the outside.

On the contrary, when the user ends the communication, that is, closes the flip in the case of the flip type terminal or presses the end switch (the END switch in the case of the normal terminal), the control unit 1 senses such a communication end state and reverses the motor 2. Send a turn signal. Thus, this reverse rotation signal is applied to the motor and the motor starts to rotate in the reverse direction. As a result, when the wire 3 loosened on the motor is wound, the antenna ground portion 10 connected to the wire is pulled, and the antenna 5 starts to wind through the antenna guide groove 6, and the antenna ground portion 10 Reaches the upper stopper 9, the control unit 1 detects this and sends a stop signal to the motor 2 so that the antenna is completely contracted.

Therefore, the antenna 5 is automatically extended when the user starts communication without grounding his or her hand to the terminal antenna at all, and automatically contracted when the user ends the communication.

(Second embodiment)

In this embodiment, a reception sensitivity mode in which the antenna 5 operates in accordance with the electric field strength during a call will be described.

In the case of a typical terminal, communication is periodically performed between the terminal and the base station according to the slot mode. At this time, the terminal measures the electric field strength and displays the radio wave state on the display unit of the terminal. Therefore, when the user is talking through the terminal, the control unit 2 does not give an operation command to the motor in the case where the user has a strength enough to make a good electric field call. However, when a call becomes difficult due to movement during a call or the like, that is, when the electric field strength is below a certain level (preset value), the control unit 1 sends a forward signal to the motor 2 so that the first signal is transmitted. As described in the embodiment, the antenna is automatically extended. On the other hand, even if the electric field strength rises above a certain level again, the antenna does not contract, and as described in the first embodiment, when the call ends, that is, when the user presses the call end switch on the terminal or closes the flip, the antenna 5 It is supposed to shrink.

Therefore, the antenna senses the electric field strength of the terminal itself and the antenna 5 is automatically extended when the electric field strength decreases during a call without the user grounding the hand at all, and the antenna automatically contracts when the user stops the call. Will be.

(Third embodiment)

In the present embodiment, a semi-automatic mode in which a user detects an attempt to raise an antenna and operates is described.

When the user attempts to make a call or flips, the flip is opened, and when the upper stopper 8 and the antenna ground portion 10 of the antenna are electrically open by pulling the antenna slightly, the control unit 1 detects this. As described in the first embodiment, the antenna 5 is extended. On the other hand, when the user ends the call, that is, presses the call end switch or closes the flip, the control unit 1 gives the motor 2 a timely signal as described in the first embodiment so that the antenna 5 is contracted. It is.

Therefore, during a call attempt or during a call, the user can automatically extend the antenna 5 only by pulling the antenna slightly as needed, and automatically contracts when the communication ends.

The above-described embodiments are described to help explain and understand the present invention, and the present invention is not limited to the above-described embodiments, and those skilled in the art can understand the present invention without departing from the gist of the present invention. It is obvious that various changes and additions can be made using basic concepts.

According to the present invention as described above, since the antenna can be automatically extended and contracted during the call or during the call, the user can solve the problems such as inconvenience and poor communication, which could be caused by the conventional structure. have.

Claims (4)

An antenna guide groove 6 is provided on the left side or the right side of the inside of the terminal main body, and the antenna 5 moves up and down along the antenna guide groove 6, and an antenna is provided at one end of the antenna 5. In the automatic antenna device for a mobile communication terminal is provided with a ground portion 10, Motor means 2; Wire means (3), one end of which is connected to the rotating shaft of the motor (2), the other end of which is connected to the antenna ground portion (10); And Control means (1) for controlling the motor (2) to rotate in the forward or reverse direction, characterized in that the antenna 5 is automatically extended and contracted in accordance with the control signal of the control unit (1) Automatic antenna device for a mobile communication terminal. The method according to claim 1, wherein the control means (1) detects the start and end of the call, sends a forward signal to the motor means (2) in the case of a call start, and a reverse signal to the motor means (2) in the case of a call end. The automatic antenna device for a mobile communication terminal, characterized in that configured to enable extension and contraction of the antenna (5). The antenna (5) according to claim 1, wherein the control means (1) senses the electric field strength reaching the terminal after the start of the call, and sends a forward signal to the motor means (2) when the electric field strength is below a certain level. And the antenna 5 is not contracted even when the electric field strength becomes above a certain level while the terminal is in use, and the antenna 5 is contracted only at the end of a call. Automatic antenna device for terminals. The antenna ground unit 10 and the upper stopper according to claim 1, wherein the control unit 1 detects an electrical short or an open state of the antenna ground unit 10 and the upper stopper 8 during a call attempt or during a call. When 8) is in an electrical open state, a forward signal is sent to the motor 2 and a reverse signal is sent to the motor 2 at the end of the call, so that the antenna 5 can be extended and contracted. An automatic antenna device for a mobile communication terminal.