JP2006293934A - Pointer remote control apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain movement control of a pointer with high accuracy and having good operability, by simple constitution. <P>SOLUTION: A pointer remote control 10 comprises a pointer unit for generating scanning light whose radiation angle is periodically varied in a 2-dimensional direction with radiation angle information, wherein a display device 30 comprises a display unit having a screen on which an image including the pointer is displayed, a plurality of optical receivers 2a to 2c, 4a to 4c for each receiving the scanning light, a position detecting unit for detecting a position of the pointer on the screen of the display unit corresponding to an orientation direction of the pointer remote controller 10 based on the radiation angle information included in the light received by these optical receivers 2a to 2c, 4a to 4c, and a pointer display control unit for performing the movement control of the pointer displayed on the screen of the display unit based on a detection output of the position detecting unit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention detects the position on the screen of the display device corresponding to the pointing direction of the pointer remote controller as the pointer position, so that the pointer displayed on the screen in response to the change in the pointing direction of the pointer remote controller The present invention relates to a pointer remote control device for movement control.

  When a required program is selected from an electronic program guide (EPG) or the like whose menu items are displayed on the screen, conventionally, the cross key (arrow key) provided on the remote control device (remote control) is pressed several times. By doing so, an operation of sequentially moving the pointer on the screen to a desired program column and pressing the enter button or the like is performed. In the operation using the cross key, the pointer moves only to the adjacent program column by one key operation. Therefore, if the desired program column is far from the current pointer position, the cross key must be pressed many times. In other words, the operation is complicated.

  In order to solve such a problem, in Patent Literature 1, slit diffused light in the horizontal and vertical directions is generated from the remote controller side, and a large number of photodetectors are arranged on the upper, lower, left and right frame portions of the display, and the upper and lower sides of the display side are arranged. A line connecting the upper and lower photodetectors that detect diffuse light and a line that connects the left and right photodetectors that detect diffuse light. The crossing position is measured, and the measured position is detected as a pointer position corresponding to the pointing direction of the remote controller.

  In Patent Document 2, rotating slit light is emitted from the remote control toward the display screen, and is received by three light receiving elements placed around the display screen, and the rotating slit light is received by these three light receiving elements. The time difference is read and replaced with an angle, and the position of the pointer which is the center position of the rotating slit light is calculated and specified.

JP 2004-171054 A Japanese Patent Laid-Open No. 11-95911

  However, in Patent Document 1, since the pointer position is detected based on the outputs of a large number of photodetectors arranged on the upper, lower, left and right frames of the display, the number of detectors increases and the cost increases. At the same time, there is a problem that the size of the frame body is increased, and it is difficult to lay out other buttons on the frame body.

  In Patent Document 2, there is no problem when the rotating slit light is vertically incident on the display screen. However, when the rotating slit light is not incident vertically on the display screen, the two light receiving elements and the pointer position are provided. And an actual rotation angle ε of the rotary slit light on the remote controller side (δ <ε). In Patent Document 2, since the pointer position is calculated based on the time difference in which the rotary slit light is received by the three light receiving elements, there is a problem that an error corresponding to the angle error is generated at the calculated pointer position. In Patent Document 2, since the position of the remote control can be detected, control is performed such as optimizing the light receiving sensitivity according to the distance between the remote control and the display, and optimizing the sound field of the TV with respect to the remote control position. There are also problems that cannot be done.

  The present invention has been made in view of the above, and an object of the present invention is to provide a pointer remote control device capable of realizing pointer movement control with a low cost, high accuracy, and good operability.

  According to the first aspect of the present invention, the position on the screen of the display device corresponding to the pointing direction of the pointer remote controller is detected as the position of the pointer on the screen in response to the change in the pointing direction of the pointer remote controller. In a pointer remote control device that controls movement of a pointer to be displayed, the pointer remote controller includes a light generation unit that generates scanning light on which radiation angle information is placed and the radiation angle periodically changes in a two-dimensional direction. The apparatus includes a display unit having a screen on which an image including a pointer is displayed, a plurality of light receiving units that receive the scanning light, and a pointer based on the radiation angle information included in the light received by the plurality of light receiving units. A position detection unit that detects the position of the pointer on the screen of the display unit corresponding to the pointing direction of the remote control, and a detection output of the position detection unit Zui and characterized in that it comprises a pointer display control unit for controlling the movement of the pointer displayed on the screen of the display unit.

  Exemplary embodiments and examples of a pointer remote control device according to the present invention will be described below in detail with reference to the accompanying drawings.

[Embodiment]
In this pointer remote control device, the pointer remote controller is moved by moving the pointer remote controller by pointing the pointer remote controller toward the pointer on the display screen, and moving the pointer remote controller itself. . The movement of the pointer employs an absolute position method in which a position on the display screen corresponding to the pointing direction of the pointer remote controller is detected and the pointer is displayed at this detected position. Therefore, in this pointer remote control device, the pointing direction of the pointer remote controller always matches the current pointer position.

  The pointer remote controller generates horizontal scanning light whose emission angle periodically changes in the horizontal direction and vertical scanning light whose emission angle changes periodically in the vertical direction. The horizontal scanning light and the vertical scanning light are transmitted with the radiation angle information for each time. On the display device side, the horizontal scanning light and the vertical scanning light are received by a plurality of light receiving units, and the position of the pointer on the screen of the display unit corresponding to the pointing direction of the pointer remote controller based on the radiation angle information included in the light reception output , And movement control of the pointer displayed on the screen is performed based on the detected position.

  The horizontal position of the pointer on the display corresponding to the pointing direction of the pointer remote controller is, for example, received by the horizontal scanning light received by the three horizontal light receiving units arranged in the horizontal direction of the display. Each radiation angle information included in the light having the maximum light intensity received by the light receiving unit is extracted and detected using the extracted three radiation angle information. The vertical position of the pointer on the display corresponding to the pointing direction of the pointer remote controller is, for example, received by three vertical light receiving units arranged in the vertical direction of the display to receive vertical scanning light. Each radiation angle information included in the light having the maximum light intensity received by the light receiving unit is extracted and detected using the extracted three radiation angle information.

  Thus, in the pointer remote control device, the horizontal scanning light and the vertical scanning light including the radiation angle information generated from the pointer remote controller are received by the light receiving unit of the display device, and based on the radiation angle information included in the light reception signal. Since the pointer position is detected and the movement of the pointer displayed on the screen is controlled based on the detected position, the pointer position can be calculated using highly accurate radiation angle information. Therefore, it is possible to realize pointer movement control with high accuracy and good operability.

  Next, Example 1 of the pointer remote control device according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the pointer remote control device includes a remote control device (hereinafter referred to as a pointer remote controller) 10 having a pointer function and a display device 30. The pointer remote controller 10 emits horizontal scanning light whose emission angle periodically changes in the horizontal direction and vertical scanning light whose emission angle changes periodically in the vertical direction. In the display device 30, the pointer remote controller 10 is based on the outputs of the three light receiving portions 2a, 2b, 2c arranged in the horizontal frame portion and the outputs of the three light receiving portions 4a, 4b, 4c arranged in the vertical frame portion. An intersection position coordinate between the pointing direction and the display screen is detected, and the pointer PT is displayed with this detected position as the position of a pointer icon (hereinafter abbreviated as a pointer) PT. Accordingly, movement of the pointer PT displayed on the display screen is controlled in response to a change in the pointing direction of the pointer remote controller 10.

  FIG. 2 shows an internal configuration on the pointer remote controller 10 side, and FIG. 3 shows an internal configuration on the display device 30 side. As shown in FIG. 2, the pointer remote controller 10 includes a normal remote controller 11 and a pointer unit 20 that is also a main part of the present invention. The normal remote control unit 11 corresponds to the configuration of the remote control part of conventional devices such as TVs and DVD players, and generates a remote control code based on the remote control key input unit 12 composed of various remote control keys and the inserted keys. A remote control code generation unit 13 and a light emission unit 14 that generates infrared light having a wavelength λa modulated based on the generated remote control code are provided. In addition, a power supply unit 15 that supplies power to the normal remote control unit 11 and the pointer unit 20 is provided.

  In the normal remote control unit 11, a remote control code corresponding to the pressed key in the remote control key input unit 12 is generated from the remote control code generation unit 13, and the light emitting unit 14 intensity-modulates the infrared light of wavelength λa according to the input remote control code. Output.

  The pointer unit 20 generates infrared rays for pointers as scanning light, and generates a horizontal pointer light-emitting unit 21 that generates infrared rays that are diffused light having a wavelength λ1 in the horizontal direction, and the generated horizontal infrared rays. The horizontal radiation direction variable unit 22 that performs horizontal scanning to vary the radiation direction of the vertical direction, the vertical pointer light-emitting unit 23 that generates infrared rays that are diffused light of the wavelength λ2 for the vertical direction, and the generated vertical direction A longitudinal radiation direction variable unit 24 that performs vertical scanning to vary the infrared radiation direction in the vertical direction, a radiation angle control unit 25 that controls the radiation angle in the lateral radiation direction variable unit 22 and the longitudinal radiation direction variable unit 24, A radiation angle code generator 26 that generates a radiation angle code as radiation angle information based on the radiation angle obtained from the radiation angle controller 25 and outputs the radiation angle code to the horizontal pointer light emitter 21 and the vertical pointer light emitter 23, and these Po The pointer SW unit 27 is a switch for the user to turn on / off the inter function.

  By turning on the pointer SW unit 27 of the pointer unit 20, the horizontal pointer light emitting unit 21, the horizontal radiation direction variable unit 22, the vertical pointer light emitting unit 23, the vertical radiation direction variable unit 24, the radiation angle control unit 25, and the radiation angle The code generation unit 26 is turned on to execute the pointer function operation for generating the pointer infrared rays. Therefore, if the pointer SW unit 27 is turned off, the pointer infrared is not generated and the pointer function is stopped. The pointer SW unit 27 is, for example, a touch sensor or a toggle SW.

  The horizontal pointer light emitting unit 21 outputs infrared light having a wavelength λ1 for controlling the horizontal pointer. Further, the vertical pointer light emitting unit 23 outputs infrared light having a wavelength λ2 for controlling the vertical pointer. The wavelengths λ1 and λ2 of the infrared rays output from the two light emitting units 21 and 23 are different from each other so that the display device 30 can distinguish them. The pointer wavelengths λ1 and λ2 are selected to be different from the wavelength λa of the infrared light generated from the light emitting unit 14 of the normal remote control unit 11.

  The radiation angle control unit 25 sequentially outputs lateral radiation angle information indicating the lateral radiation angle at which infrared radiation should be emitted to the lateral radiation direction variable unit 22 and radiates infrared light to the vertical radiation direction variable unit 24. The longitudinal radiation angle information indicating the power longitudinal radiation angle is sequentially output. FIG. 4 shows the radiation angle of infrared light emitted from the pointer unit 20 of the pointer remote controller 10. In this case, the radiation angle is 90 degrees at the center of the radiation direction of the pointer unit 20, and the right side is 0 to 90 degrees and the left side is 90 to 180 degrees when viewed from the pointer remote controller 10.

  For example, a case will be described in which infrared rays for horizontal direction are emitted in the angle range from α degrees to β degrees while changing the radiation direction at intervals of angles Δθ degrees and at intervals of time ΔT. The radiation angle control unit 25 instructs the lateral radiation direction variable unit 22 to emit radiation at α degrees by outputting radiation angle information including α degrees at a certain point in time. Next, after ΔT time, an instruction is given to emit at α + Δθ degrees. Furthermore, after ΔT time, by outputting radiation angle information including α + 2 × Δθ degrees, and further after ΔT time, α + 3 × Δθ degrees, etc., an instruction is given at time ΔT intervals to increase the angle by a certain angle Δθ degrees. I will put it out. Therefore, the angle reaches β degrees after (β−α) × ΔT / Δθ time. Next, it is instructed to go back and radiate again at α degrees. Thereafter, it is instructed to periodically increase the angle by Δθ degrees from α degrees to β degrees. Therefore, the cycle U for giving an instruction from α degrees to β degrees is {(β−α) / Δθ + 1} × ΔT. For example, if α = 30, β = 150, Δθ = 1 degree, and ΔT = 1 second, the period U is 121 seconds. This period U needs to be set to a period that is faster (shorter) than the movement of the pointer remote controller 10 in consideration of the case where the pointer remote controller 10 is moved quickly. The radiation angle control unit 25 sequentially outputs the horizontal direction radiation angle information and the vertical direction radiation angle information to the lateral radiation direction variable unit 22 and the vertical radiation direction variable unit 24, respectively. The information and the vertical radiation angle information are also output to the radiation angle code generation unit 26.

  The radiation angle code generation unit 26 generates a horizontal radiation angle code corresponding to the horizontal radiation angle information input from the radiation angle control unit 25, and uses the generated horizontal radiation angle code as a horizontal pointer light emitting unit. 21, a vertical radiation angle code corresponding to the input vertical radiation angle information is generated, and the generated vertical radiation angle code is output to the vertical pointer light emitting unit 23. The horizontal pointer light emitting unit 21 emits infrared light with the horizontal radiation angle information by intensity-modulating the infrared light having the wavelength λ1 to be emitted based on the input horizontal radiation angle code. The vertical pointer light emitting unit 23 emits infrared light having the vertical radiation angle information by intensity-modulating the infrared light having the wavelength λ <b> 2 emitted based on the input vertical radiation angle code.

  The horizontal radiation direction variable unit 22 sequentially changes the radiation direction (radiation angle) of the horizontal infrared light generated by the horizontal pointer light emitting unit 21 in the horizontal direction in accordance with the horizontal radiation angle information from the radiation angle control unit 25. The horizontal scanning is performed. The longitudinal radiation direction variable unit 24 sequentially changes the radiation direction (radiation angle) of the longitudinal infrared rays generated by the vertical pointer light emitting unit 23 in the longitudinal direction according to the longitudinal radiation angle information from the radiation angle control unit 25. Vertical scanning is performed. As shown in FIG. 5, the lateral radiation direction variable unit 22 includes, for example, a liquid crystal panel unit 28 a and a liquid crystal panel drive unit 29 a that drives the liquid crystal panel unit 28 a. The liquid crystal panel unit 28b and the liquid crystal panel drive unit 29b that drives the liquid crystal panel unit 28b are configured.

  FIG. 6 shows a change in the radiation direction (radiation angle) of the lateral infrared rays by the liquid crystal panel unit 28 a provided in the lateral radiation direction variable unit 22. When the emission angle information is input from the emission angle control unit 25, the liquid crystal panel drive unit 29 a in the horizontal emission direction variable unit 22 has the indicated emission angle direction among the infrared rays emitted from the horizontal pointer light emitting unit 21. The liquid crystal panel unit 28a is driven so that only infrared rays corresponding to the predetermined lateral position pass. That is, in the liquid crystal panel unit 28a, the liquid crystal is driven so that the vertical slit SLa extending in the vertical direction is formed at a predetermined horizontal position corresponding to the instructed radiation angle direction. As described above, radiation angle information having sequentially different values is input from the radiation angle control unit 25. Therefore, on the liquid crystal panel unit 28a, as shown in FIG. ) Is moved from right to left, whereby the radiation direction (radiation angle) of the horizontal direction infrared light is sequentially moved in the horizontal direction.

  FIG. 7 shows the relationship between the positional relationship between the horizontal pointer light emitting section 21 and the liquid crystal panel section 28a and the infrared radiation angle θ. The position q of the infrared ray passing portion on the liquid crystal panel unit 28a (in this case, the distance from the horizontal position of the horizontal pointer light emitting unit 21) is q = r × tan (π / 2−θ). Here, r is the distance between the horizontal pointer light emitting unit 21 and the liquid crystal panel unit 28a.

  FIG. 8 shows the arrangement of the liquid crystal panel sections 28a, 28b and the like in the pointer remote controller 10, and FIG. 9 shows the arrangement of the liquid crystal panel sections 28a, 28b and the like when the pointer remote controller 10 is viewed from the front. is there.

  As shown in FIGS. 8 and 9, in the front of the horizontal pointer light emitting unit 21, a longitudinal slit SLa extending in the vertical direction as the horizontal radiation direction variable unit 22 is driven so as to sequentially move in the horizontal direction. A panel portion 28a is disposed, and a longitudinal slit SLb extending in the horizontal direction as the longitudinal radiation direction variable portion 24 is driven in front of the vertical pointer light emitting portion 23 and is driven so as to sequentially move in the vertical direction. In general, nothing is arranged in front of the light emitting unit 14 of the remote control unit 11.

  When the emission angle information is input from the emission angle control unit 25, the liquid crystal panel drive unit 29 b in the vertical emission direction variable unit 24 has the indicated emission angle direction among the infrared rays emitted from the vertical pointer light emitting unit 23. The liquid crystal panel unit 28b is driven so that only infrared rays corresponding to predetermined vertical positions pass therethrough. That is, in the liquid crystal panel unit 28b, the liquid crystal is driven so that the horizontal slit SLb extending in the horizontal direction is formed at a predetermined vertical position corresponding to the instructed radiation angle direction. Since radiation angle information having sequentially different values is input from the radiation angle control unit 25, a portion (lateral slit SLb) through which infrared rays pass is moved in the vertical direction on the liquid crystal panel unit 28b. The radiation direction (radiation angle) of the industrial infrared rays will be moved in the vertical direction sequentially.

  In this way, the horizontal radiation direction variable unit 22 outputs the infrared light for the horizontal direction having the bright portion extending in the vertical direction in which the radiation direction (radiation angle) is sequentially moved in the horizontal direction, and the vertical radiation direction variable. The unit 24 outputs infrared light for the vertical direction having a bright portion extending in the horizontal direction in which the radiation direction (radiation angle) is sequentially moved and scanned in the vertical direction.

  Next, the configuration on the display device 30 side will be described with reference to FIG. The display device 30 includes a display unit 31 on which a moving image and a pointer PT are displayed, a pointer function ON / OFF detection unit 32 that detects an on / off state of the pointer function by the pointer remote controller 10, and movement of the pointer remote controller 10. The horizontal position detector 33 that detects the horizontal position of the pointer PT corresponding to the pointer PT, the vertical position detector 34 that detects the vertical position of the pointer PT corresponding to the movement of the pointer remote controller 10, and the pointer function ON / OFF The pointer position data generation unit 35 that generates position data of the pointer PT based on the detection outputs of the OFF detection unit 32, the horizontal direction position detection unit 33, and the vertical direction position detection unit 34, and the pointer position data generation unit 35 output An interface unit 36 for interfacing the pointer position data to the video transmission unit 37, a moving image, a group Fick, and a video transmitting unit 37 for outputting video, such as the pointer PT. The pointer position data generation unit 35, the interface unit 36, and the video transmission unit 37 correspond to the pointer display control unit described in the claims.

  The display unit 31 is a device that displays an image such as a plasma television, a liquid crystal television, a cathode-ray tube television, a personal computer monitor, and the like. A red light from the light emitting unit 14 of the normal remote control unit 11 of the pointer remote controller 10 is placed on the front of the display unit 31. A remote control light receiving unit 1 for receiving external light is provided. The display unit 31 has a function of understanding and controlling a remote operation from the pointer remote controller 10 received by the remote control light receiving unit 1, and a remote control link function for outputting a remote control signal received by the remote control light receiving unit 1 to the video sending unit 37. have.

  The video transmission unit 37 has a tuner function such as BS, CS, terrestrial digital, a video display function such as a receiver for plasma television, a VTR, a DVD player, or a graphic video transmission function such as a moving picture, EPG, data broadcasting, etc. The pointer position data to be described later is taken in via the interface unit 36, the position of the pointer PT to be displayed is calculated, the pointer PT is displayed as a graphic image at that position, and at the same time, the EPG and data related to the display of the pointer PT It has a function to control display of graphic information such as broadcasting.

  A frame body portion 31a is provided around the front surface of the display portion 31, and the horizontal radiation direction variable portion 22 of the pointer remote controller 10 is provided on the horizontal frame body portion (in this case, the upper side horizontal frame body portion) of the frame body portion 31a. Three light receiving portions 2a, 2b, and 2c for receiving the laterally scanned infrared rays having the wavelength λ1 generated from the light are disposed. These light receiving portions 2a, 2b, and 2c are arranged so that the horizontal frame body portions are arranged in the horizontal direction, the light receiving portion 2a is provided at the left end portion of the horizontal frame body portion, and the light receiving portion 2b is disposed on the horizontal frame body portion. The light receiving portion 2c is disposed at the right end portion of the horizontal frame body portion.

  On the other hand, the vertical frame body portion (in this case, the right side vertical frame body portion) receives the infrared light for vertical scanning of the wavelength λ 2 generated from the vertical radiation direction variable portion 24 of the pointer remote controller 10. Three light receiving portions 4a, 4b and 4c are arranged. These light receiving portions 4a, 4b, and 4c are arranged so that the vertical frame body portions are arranged in the vertical direction, the light receiving portion 4a is provided at the upper end portion of the vertical frame body portion, and the light receiving portion 4b is the vertical frame body portion. Arranged at the center, the light receiving part 4c is arranged at the lower end of the vertical frame part.

Pointer function ON / OFF detection The pointer function ON / OFF detection unit 32 detects light reception outputs from the six light receiving units 2a, 2b, 2c, 4a, 4b, and 4c arranged in the frame 31a of the display unit 31. Based on this, it is detected whether infrared light is emitted from the pointer unit 20 of the pointer remote controller 10 (whether the pointer function is on) or not, and an on / off instruction signal corresponding to the detection output is sent to the lateral position detecting unit 33. And output to the vertical position detection unit 34 and the pointer position data generation unit 35. For example, if any one of the six light receiving units 2a, 2b, 2c, 4a, 4b, and 4c is inputted with an infrared ray of a certain level or more, it is determined that the pointer function is on and an on instruction signal is sent. The data is sent to the horizontal position detection unit 33, the vertical position detection unit 34, and the pointer position data generation unit 35, and the function of each unit is turned on. The pointer function ON / OFF detection unit 32 has a timer function, and the timer starts operating when no infrared ray of a certain level or more is input to any light receiving unit. A predetermined timer value is preset in the timer in advance, and it is determined that the pointer function is off when a state in which no infrared rays of a predetermined level or more are input to any of the six light receiving units continues for a set timer value or more. Then, an off instruction signal is sent to the horizontal position detection unit 33, the vertical position detection unit 34, and the pointer position data generation unit 35 to turn off the functions of these units.

-Horizontal position detection The horizontal position detection unit 33 detects the horizontal direction of the pointer from the radiation angle information obtained by analyzing the signals input from the three light receiving units 2a, 2b, 2c provided in the horizontal frame ( Calculate the absolute position in the x direction). From the lateral radiation direction variable unit 22 of the pointer unit 20 of the pointer remote controller 10, infrared rays on which the radiation angle information is placed are sequentially emitted while changing the radiation angle in the lateral direction. In this case, the radiation direction is changed from right to left, and after reaching the leftmost end, the operation returns to the rightmost end and the radiation direction is changed again from right to left. In the display device 30, the three light receiving units 2 a, 2 b, 2 c provided on the horizontal frame body receive the infrared rays for the horizontal direction having the wavelength λ 1 on which the radiation angle information emitted from the pointer unit 20 is placed. The lateral position detection unit 33 extracts infrared rays received when the light intensity of each of the light receiving units 2a, 2b, and 2c is maximum, analyzes the extracted three infrared rays, and acquires radiation angle information from each infrared ray. . Then, based on the radiation angle information obtained by the three light receiving units 2a, 2b, and 2c and the coordinates (known) of the three light receiving units, the horizontal direction of the intersection of the pointing direction of the pointer remote controller 10 and the display screen The coordinates in the (x direction) are calculated, and this detection position is detected as the horizontal position of the pointer PT.

FIG. 10 is a diagram for explaining a mechanism for detecting the pointer position in the horizontal direction. Here, the screen of the display unit 31 is represented by x and y coordinates (x: horizontal direction, y: vertical direction), and the direction perpendicular to the xy plane is represented by z coordinates. In FIG. 10, it is expressed in two dimensions, the x axis and the z axis. The current position of the pointer PT on the screen is x coordinate = px, z coordinate = 0, that is, (px, 0). In this case, the vertical coordinate py of the pointer PT is ignored in FIG. Then, the coordinates of the point A corresponding to the light receiving unit 2a on the display unit 31 are (−c, 0) (c is known), and the coordinates of the point B corresponding to the light receiving unit 2b are (0, 0). The coordinates of the point C corresponding to the part 2c are (c, 0), the radiation angle information received by each of the light receiving parts 2a, 2b, 2c is θ _A , θ _B , θ _C , and the current position of the pointer remote controller 10 is Let Q (x1, z1).

Here, if the angle formed by the line segment CQ and the line segment BQ is α _H , the angle formed by the line segment BQ and the line segment AQ is β _H , and the angle formed by the line segment PQ and the line segment BQ is γ _H ,
α _H = θ _B −θ _C (1)
β _H = θ _A −θ _B (2)
γ _H = θ _P −θ _B = (π / 2) −θ _B (3)
Is established.

Further, a circle passing through the points C, B, and Q is as shown in Expression (4).

Further, a circle passing through the points A, B, and Q is as shown in Expression (5).

From the above equations (4) and (5), the following equation (6) is established.

Substituting this equation (6) into equation (4) to obtain z1 yields equation (7).

When Expression (7) is substituted into Expression (6), x1 becomes Expression (8).

Therefore, the current position Q of the pointer remote controller 10 is represented by the following equation (9).

Moreover, following Formula (10) is materialized from Formula (7) and Formula (8).

Here, when x1> 0 and x1 / z1 = tanφ, the following equation (11) is established.

When px is obtained from Expression (11), the following Expression (12) is established.

Then, from Expression (12) and Expression (10), px becomes as shown in the following Expression (13).

When x1 <0 and −x1 / z1 = tanφ, (−x1 + px) / z1 = tan (φ + γ _H ), and the above equation (13) also holds. Then, by substituting Equations (1) to (3) into Equation (13), θ _A , θ _B , and θ _C acquired as radiation angle information are variables, and px using a known value c is used. Can be obtained by the following equation (14). The horizontal position detection unit 33 calculates the coordinate px in the horizontal direction (x direction) of the intersection between the pointing direction of the pointer remote controller 10 and the display screen based on the equation (14), and uses the detected position px as the pointer PT. It is detected as the horizontal position.

Vertical Position Detection The vertical position detection unit 34 detects the vertical direction (y of the pointer) from the angle information obtained by analyzing the signals input from the three light receiving units 4a, 4b, 4c provided in the vertical frame. Calculate the absolute position. From the longitudinal radiation direction variable unit 24 of the pointer unit 20 of the pointer remote controller 10, infrared rays carrying radiation angle information are sequentially emitted while changing the radiation angle in the vertical direction. In this case, the radiation direction is changed from the top to the bottom, and when it reaches the lowest end, the operation returns to the top end and the radiation direction is changed again from the top to the bottom. In the display device 30, the three light receiving portions 4 a, 4 b, 4 c provided on the vertical frame body receive the infrared light for the vertical direction having the wavelength λ 2 on which the radiation angle information emitted from the pointer portion 20 is placed. The vertical position detection unit 34 extracts infrared rays received when the light intensity of each of the light receiving units 4a, 4b, and 4c is maximum, analyzes the extracted three infrared rays, and acquires radiation angle information from each infrared ray. . Based on the radiation angle information obtained by the three light receiving units 4a, 4b, and 4c and the coordinates (known) of the three light receiving units, the vertical direction of the intersection of the pointing direction of the pointer remote controller 10 and the display screen The coordinates in the (y direction) are calculated, and this detection position is detected as the vertical position of the pointer PT.

FIG. 11 is a diagram for explaining a mechanism for detecting the pointer position in the vertical direction. In FIG. 11, it is expressed in two dimensions, y-axis and z-axis. Then, as shown in FIG. 11, the current position of the pointer PT on the screen is (py, 0). In this case, in FIG. 11, the horizontal coordinate px of the pointer PT is ignored. Then, the coordinates of the point D corresponding to the light receiving unit 4a on the display unit 31 are (g, 0) (g is known), the coordinates of the point E corresponding to the light receiving unit 4b are (0, 0), and the light receiving unit The coordinates of the point F corresponding to 4c are set to (−g, 0), the radiation angle information received by the light receiving portions 4a, 4b, 4c is set to θ _D , θ _E , θ _F , and the current position of the pointer remote controller 10 is set. Let Q (y1, z1). α _V is an angle formed by the line segment EQ and the line segment FQ, β _V is an angle formed by the line segment EQ and the line segment DQ, and γ _V is an angle formed by the line segment PQ and the line segment EQ.

Similarly to the above equations (1) to (13), θ _D , θ _E , and θ _F acquired as radiation angle information are used as variables, and py using g that is a known value is represented by the following equation (15). Can be obtained. Based on this equation (15), the vertical position detection unit 34 calculates the coordinate py in the vertical direction (y direction) of the intersection of the pointing direction of the pointer remote controller 10 and the display screen, and uses this detected position py as the pointer PT. It is detected as the vertical position of.

  In this way, the position (px, py) of the pointer is obtained. In order to reduce the adverse effect of the movement (vibration) of the pointer remote controller 10 itself, it is necessary to set the scanning period in the vertical and horizontal directions of infrared rays on the pointer remote controller 10 side to be sufficiently shorter than the speed at which the pointer remote controller 10 is moved. .

Pointer position data generation The pointer position data generation unit 35 sends pointer position information, which includes the pointer horizontal position information and the pointer vertical position information input from the horizontal position detection unit 33 and the vertical position detection unit 34, as video transmission. The pointer position data is converted into a format understandable by the unit 37, and the converted pointer position data is sent to the video transmission unit 37 via the interface unit 36.

  As described above, the video transmission unit 37 fetches the pointer position data from the pointer position data generation unit 35 via the interface unit 36, calculates the position of the pointer PT to be displayed using the fetched pointer position data, At the same time, the pointer PT is displayed as a graphic image, and at the same time, it has a function of controlling display of graphic information such as EPG and data broadcasting in association with the display of the pointer PT. For example, as shown in FIG. 12, when the EPG is displayed on the digital terrestrial broadcast tuner, the video transmission unit 37 takes in the pointer position data via the interface unit 36, and uses the fetched pointer position data. The position of the pointer PT is calculated and displayed at that position, and at the same time, the program field is selected by having an association with the program field at the pointer position on the EPG and surrounding the program field with a frame of a predetermined color. Display operation is performed. When selecting a menu item such as a program column indicated by the pointer PT, a decision key (not shown) is inserted as in the case of a normal remote controller.

  Next, the overall operation of the pointer remote controller 10 and the display device 30 will be described with reference to the flowcharts shown in FIGS. FIG. 13 shows the operation on the pointer remote controller 10 side, and FIG. 14 shows the operation on the display device 30. In this case, the screen scrolling on the display device 30 due to the movement of the pointer PT is not considered.

  On the pointer remote controller 10 side, when the pointer SW unit 27 is turned on (step S100), the horizontal pointer light emitting unit 21, the horizontal radiation direction varying unit 22, the vertical pointer light emitting unit 23, the vertical radiation direction varying unit 24, and the radiation angle control. The unit 25 and the radiation angle code generation unit 26 are turned on, and the operation of the pointer function that generates the infrared rays for the pointer is executed (step S110).

  On the other hand, the radiation angle control unit 25 sequentially outputs the radiation angle information for the transverse direction that sequentially changes in a predetermined angle range to the lateral radiation direction variable unit 22 and at the predetermined angle range to the longitudinal radiation direction variable unit 24. The vertically changing radiation angle information is sequentially output. The horizontal radiation angle information and the vertical radiation angle information are also input to the radiation angle code generation unit 26. The radiation angle code generation unit 26 generates a horizontal radiation angle code and a vertical radiation angle code corresponding to the input horizontal radiation angle information and vertical radiation angle information, and generates the generated horizontal radiation. The angle code and the vertical emission angle code are sequentially input to the horizontal pointer light emitting unit 21 and the vertical pointer light emitting unit 23.

  The horizontal pointer light emitting unit 21 generates infrared light having a wavelength λ1 that is intensity-modulated according to the input horizontal radiation angle code. The vertical pointer light emitting unit 23 generates infrared light having a wavelength λ2 that is intensity-modulated according to the vertical radiation angle code (step S110). Therefore, from the horizontal pointer light emitting unit 21 and the vertical pointer light emitting unit 23, the horizontal direction infrared ray and the vertical direction infrared ray on which the horizontal direction radiation angle code and the vertical direction radiation angle code as the radiation angle information are emitted. Is done.

  The horizontal radiation direction variable unit 22 generates the horizontal direction infrared ray of wavelength λ1 including the horizontal radiation angle code generated by the horizontal pointer light emitting unit 21 in accordance with the horizontal radiation angle information from the radiation angle control unit 25. The radiation direction (radiation angle) is sequentially changed in the horizontal direction. The longitudinal radiation direction variable unit 24 is configured to transmit the longitudinal infrared light having the wavelength λ2 including the longitudinal radiation angle code generated by the longitudinal pointer light emitting unit 23 according to the longitudinal radiation angle information from the radiation angle control unit 25. The radiation direction (radiation angle) is sequentially changed in the vertical direction. Thereby, the horizontal radiation direction variable unit 22 outputs infrared light for horizontal direction (horizontal scanning light) in which the radiation direction (radiation angle) is sequentially scanned in the horizontal direction, and the vertical radiation direction variable unit 24 outputs Infrared light for vertical direction (longitudinal scanning light) whose radiation direction (radiation angle) is sequentially moved in the vertical direction is output (step S120).

  Thereafter, as long as the pointer SW unit 27 is on, the horizontal direction infrared light and the vertical direction infrared light are output from the pointer remote controller 10. That is, when the pointer SW unit 27 is turned off (step S130), the respective units constituting the pointer unit 20 are turned off (step S140), and the output of the horizontal direction infrared rays and the vertical direction infrared rays is stopped.

  On the display device 30 side, the pointer function ON / OFF detection unit 32 emits infrared rays from the pointer unit 20 of the pointer remote controller 10 based on the light reception outputs from the six light reception units 2a, 2b, 2c, 4a, 4b, and 4c. If the pointer function is turned on (step S200), the horizontal position detector 33, the vertical position detector 34, and the pointer position data generator 35 are turned on.

  In the lateral position detection unit 33 that is turned on, as described above, the radiation angle information obtained by the three light receiving units 2a, 2b, and 2c and the coordinates (known) of the three light receiving units 2a, 2b, and 2c, and Is substituted into the previous equation (14) to calculate the horizontal (x-direction) coordinates of the intersection of the pointing direction of the pointer remote controller 10 and the display screen, and this detected position is calculated as the horizontal direction of the pointer PT. Detect as position. Further, as described above, the vertical position detection unit 34 uses the radiation angle information obtained by the three light receiving units 4a, 4b, and 4c and the coordinates (known) of the three light receiving units 4a, 4b, and 4c. By substituting into the previous equation (15), the coordinate in the vertical direction (y direction) of the intersection of the pointing direction of the pointer remote controller 10 and the display screen is calculated, and this detected position is used as the vertical position of the pointer PT. It detects (step S210). The detected horizontal position and vertical position of the pointer PT are input to the pointer position data generation unit 35.

  When the pointer position data generation unit 35 detects that the pointing direction of the pointer remote controller 10 is within the screen range of the display unit 31 based on the horizontal position and the vertical position of the input pointer PT, the pointer position data generation unit 35 detects the horizontal position of the pointer PT. The pointer position data including the vertical position is output to the video transmission unit 37 via the interface unit 36 (steps S220 and S230). As a result, the video transmission unit 37 displays the pointer PT at the position indicated by the pointer position data of the display unit 31 (step S240). At this time, if it is determined that the pointer PT is out of the screen range, the pointer PT is not displayed on the screen of the display unit 31.

  Thereafter, the lateral position detection unit 33 uses the radiation angle information obtained by the three light receiving units 2a, 2b, and 2c and the coordinates (known) of the three light receiving units 2a, 2b, and 2c to determine the pointer PT. In addition to detecting the horizontal position, the vertical position detection unit 34 uses the radiation angle information obtained by the three light receiving units 4a, 4b, 4c and the coordinates (known) of the three light receiving units 4a, 4b, 4c. Then, the vertical position of the pointer PT is detected (step S250). When the pointer position data generation unit 35 detects that the pointing direction of the pointer remote controller 10 is within the screen range of the display unit 31 based on the horizontal position and the vertical position of the input pointer PT, the pointer position data generation unit 35 detects the horizontal position of the pointer PT. The pointer position data including the vertical position is output to the video transmission unit 37 via the interface unit 36 (step S260). As a result, the video transmission unit 37 performs a display of moving the pointer PT to the position designated by the pointer position data of the display unit 31 (step S270).

  Such movement control of the pointer PT is continuously executed as long as the pointer function ON / OFF detection unit 32 detects that the pointer function is on (steps S280 and S250 to S270). When the pointer function ON / OFF detection unit 32 detects that the pointer function is off (step S280), the pointer function ON / OFF detection unit 32 starts a built-in timer (step S290). When the pointer function ON / OFF detection unit 32 detects that the pointer function is turned on before the predetermined time elapses after the built-in timer is started (step S300), the built-in timer is stopped. (Step S340), the same pointer movement control as described above is executed again.

  However, if the pointer function ON / OFF detection unit 32 does not detect that the pointer function is on until the predetermined time elapses after the built-in timer is started (steps S300 and S310), the pointer function ON / OFF is detected. The OFF detection unit 32 stops the built-in timer (step S320) and outputs a pointer function off signal to the pointer position data generation unit 35. Upon receiving the pointer function off signal, the pointer position data generation unit 35 sends pointer movement data including a signal for deleting the pointer PT to the video transmission unit 37 via the interface unit 36. As a result, the video transmission unit 37 deletes the pointer PT from the screen (step S330).

  When the pointer remote controller 10 is moved so that the pointing direction of the pointer remote controller 10 is outside the screen range of the display unit 31 when the pointer PT is within the screen range of the display unit 31, the screen in the moving direction is displayed. Control is performed so that the pointer PT is displayed at the end.

  As described above, in the first embodiment, the horizontal scanning light and the vertical scanning light including the radiation angle information generated from the pointer remote controller 10 are received by the plurality of light receiving units of the display device 30, and the radiation angle information included in the light reception signal. The pointer position is detected based on the detected position, and the movement control of the pointer displayed on the screen is performed based on the detected position. Therefore, the pointer position can be calculated using highly accurate radiation angle information. Thus, it is possible to realize pointer movement control with high accuracy and good operability.

  In the above, the pointer remote controller 10 sends infrared rays that are scanned in one direction from the right to the left in the radiation direction in the horizontal direction, and the radiation angle in one direction from the top to the bottom in the vertical direction. Infrared rays to be moved and scanned are sent, but in the horizontal direction, the radiation angle changes from left to right, from right to left, and from left to right, and in the vertical direction, the radiation angle changes from top to bottom and from bottom to top. Further, the scanning may be performed in both directions so that the radiation angle reciprocates from top to bottom.

  In the above description, instead of the combination of the horizontal pointer light emitting unit 21 and the horizontal radiation direction variable unit 22 (the combination of the vertical pointer light emitting unit 23 and the vertical radiation direction variable unit 24), the light emitting unit is a laser light source, A mirror capable of variably controlling the angle of two axes such as a galvanometer scanner may be used as means for changing the radiation direction. In this case, since the laser is used, the wavelength width can be narrowed, and since the mirror is used, the problem of diffraction due to the slit does not occur. As described above, the horizontal scanning light and the vertical scanning light whose radiation directions change in the vertical and horizontal directions may be generated using other arbitrary methods.

Further, the position of the pointer remote controller 10 relative to the display device 30 may be detected on the display device 30 side. That is, in the previous equation (9), the x-coordinate and z-coordinate positions (x1, z1) of the pointer remote controller 10 are obtained using α _H and β _H as variables. According to the expressions (1) and (2), α _H and β _H can be determined using the radiation angle information θ _A , θ _B , and θ _C. Therefore, if the radiation angle information θ _A , θ _B , θ _C is used, the x-coordinate and z-coordinate positions (x1, z1) of the pointer remote controller 10 can be calculated. Similarly, if the radiation angle information θ _D , θ _E , θ _F is used, the y-coordinate and z-coordinate positions (y1, z1) of the pointer remote controller 10 can be calculated. In this way, using the received radiation angle information θ _A , θ _B , θ _C , θ _D , θ _E , θ _F , the position (x1, y1, z1) of the pointer remote controller 10 relative to the display device 30 is calculated. be able to. Therefore, in the first embodiment, the position (x1, y1, z1) of the pointer remote controller 10 may be calculated on the display device 30 side. If the position of the pointer remote controller 10 is known, the distance between the pointer remote controller 10 and the display unit 31 can also be determined. Therefore, the infrared light receiving sensitivity is optimized according to the detected distance, or the TV sound field is optimized with respect to the remote controller position. It is possible to perform application control such as

  Further, as the arrangement mode of each light receiving unit, the one shown in FIG. 1 or FIG. 3 is preferable, but other arrangement modes may be adopted as long as a substantially equivalent function can be achieved. Further, when the video sending unit 37 (personal computer) sends the graphic software image to the display unit 31 based on the graphic software, the pointer PT is moved by the movement of the pointer remote controller 10, and the locus of the pointer PT is graphically displayed. The above-described embodiment may be applied to the process of making the input.

  Next, Embodiment 2 of the present invention will be described with reference to FIGS. In the first embodiment, the pointer remote controller 10 generates the horizontal infrared light having the wavelength λ1 and the vertical infrared light having the wavelength λ2. However, when the pointer remote controller 10 is tilted, the horizontal infrared light and the vertical infrared light are inclined. End up. For example, when the remote control is rotated around the optical axis, the lateral infrared light rotates as shown in FIG. On the display device 30 side, a plurality of horizontal infrared detection light receiving parts 2a, 2b, 2c arranged in the horizontal frame part of the frame part 31a detect the horizontal infrared light by identifying the wavelength λ1, A plurality of light receiving portions 4a, 4b, 4c for detecting infrared rays arranged in a row in the vertical frame portion of the frame portion 31a detect the infrared rays by identifying the wavelength λ2. However, when the pointer remote controller 10 is rotated about the optical axis to around 90 degrees (around 90 degrees), the horizontal infrared moving direction (scanning direction) is perpendicular to the arrangement direction of the plurality of light receiving units 2a, 2b, 2c. Therefore, since the moving direction (scanning direction) of the vertical infrared rays is perpendicular to the arrangement direction of the plurality of light receiving portions 4a, 4b, 4c, the horizontal scanning and the vertical infrared moving scanning can be detected on the display device 30 side. Disappear.

  Therefore, in the second embodiment, as shown in FIG. 16, a remote control tilt angle detector 40 that detects the tilt angle of the pointer remote controller 10 is added to the pointer section 20 of the pointer remote controller 10. The remote control tilt angle detection unit 40 detects a rotation angle around the optical axis, with 0 degree when the operation surface of the pointer remote control 10 is directly above. Then, the remote control tilt angle detection unit 40 informs the radiation angle code generation unit 26 that infrared rays cannot be detected when the detected rotation angle falls within a predetermined angle range of about +90 degrees or a predetermined angle range of about −90 degrees. An infrared detection impossible signal is output. The radiation angle code generation unit 26 to which the infrared detection impossible signal is input generates code information corresponding to the radiation angle information input from the radiation angle control unit 25 to generate the horizontal pointer light emitting unit 21 and the vertical pointer light emission. The code information corresponding to the infrared detection impossible signal is generated and output to the horizontal pointer light emitting unit 21 and the vertical pointer light emitting unit 23. The horizontal pointer light emitting unit 21 and the vertical pointer light emitting unit 23 output infrared light on which the infrared detection impossible signal is mounted by performing intensity modulation using the infrared detection impossible signal.

  On the display device 30 side, any one of the pointer ON / OFF detection unit 32, the horizontal position detection unit 33, and the vertical position detection unit 34 detects the infrared detection impossible signal placed on the infrared rays. For example, when the pointer ON / OFF detection unit 32 detects an infrared detection impossible signal, the information is transmitted to the video transmission unit 37 via the pointer position data generation unit 35 and the interface unit 36. When the video transmission unit 37 receives the infrared detection impossible signal, the video transmission unit 37 displays character information or video information such as “Please do not tilt the remote control” on the screen of the display unit 31 and pay attention to the user. Prompt.

  As described above, in the second embodiment, a function for detecting the tilt angle of the remote controller is added to the pointer remote controller 10 side, and when the remote controller tilt angle is tilted within a predetermined angle range, infrared detection failure indicating that infrared rays cannot be detected. A possible signal is transmitted to the display device 30 side, and the display device 30 side that has received the infrared detection impossible signal displays on the display that the tilt of the remote control is abnormal to alert the user. Therefore, it is possible to prevent a situation in which the pointer cannot be moved for a long time due to an abnormal inclination of the remote control.

  The pointer remote controller 10 transmits the rotation angle information detected by the remote controller tilt angle detection unit 40 instead of the light / dark fringe detection impossible signal to the display device 30 on infrared rays, and the display device 30 side has a plurality of light receiving units. For comparing the rotation angle information received via the predetermined angle range of about +90 degrees or the predetermined angle range of about -90 degrees, and paying attention to the user on the screen of the display unit 31 based on the comparison result. Attention information may be displayed.

  Further, in the above, the infrared detection impossible signal or the rotation angle information detected by the remote control tilt angle detection unit 40 is output on the infrared light emitted by the horizontal pointer light emitting unit 21 or the vertical pointer light emitting unit 23 and output. However, these infrared detection impossible signals or rotation angle information is normally input to the remote control code generator 13 of the remote control unit 11, and the infrared light intensity-modulated by the remote control code generator 13 based on these infrared detection impossible signals or rotation angle information is received. You may make it output from the light emission part 14. FIG. On the display device 30 side, attention information for noting the user is displayed on the screen of the display unit 31 using the infrared detection impossible signal or the rotation angle information received via the remote control light receiving unit 1.

It is a conceptual diagram which shows the whole structure of the pointer remote control apparatus of Example 1. FIG. It is a block diagram which shows the internal structure by the side of the pointer remote control in the pointer remote control apparatus of Example 1. It is a block diagram which shows the internal structure by the side of the display apparatus in the pointer remote control apparatus of Example 1. FIG. It is a figure which shows a mode that the infrared rays from which a radiation direction (radiation angle) changes are radiate | emitted. It is a block diagram which shows the internal structure of a horizontal radiation direction variable part and a vertical radiation direction variable part. It is a figure which shows a mode that the infrared rays from which a radiation angle changes are radiate | emitted from the liquid crystal panel part which has a slit. It is a figure which shows the relationship between the positional relationship of a horizontal pointer light emission part and a liquid crystal panel part, and the infrared radiation angle. It is a top view which shows arrangement | positioning of the liquid crystal panel part etc. in a pointer remote control. It is a front view which shows arrangement | positioning of the liquid crystal panel part etc. in a pointer remote control. It is a figure explaining the mechanism of the pointer position detection of a horizontal direction. It is a figure explaining the mechanism of the pointer position detection of the vertical direction. It is a figure which shows the example of a pointer movement on the screen where EPG was displayed. 6 is a flowchart illustrating an operation procedure on the pointer remote controller side in the pointer remote control device according to the first embodiment. 6 is a flowchart illustrating an operation procedure on the display device side in the pointer remote control device according to the first embodiment. It is a figure which shows the state which the horizontal infrared rays rotated about 90 degree | times by rotation of the pointer remote control. It is a block diagram which shows the internal structure by the side of the pointer remote control in the pointer remote control apparatus of Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Remote control light-receiving part 2a, 2b, 2c, 4a, 4b, 4c Light-receiving part 10 Pointer remote control 11 Normal remote control part 12 Remote control key input part 13 Remote control code generation part 14 Light emission part 15 Power supply part 20 Pointer part 21 Side pointer light emission part 22 Horizontal radiation direction variable unit 23 Vertical pointer light emitting unit 24 Vertical radiation direction variable unit 25 Radiation angle control unit 26 Radiation angle code generation unit 27 Pointer SW unit 28a, 28b Liquid crystal panel unit 29a, 29b Liquid crystal panel drive unit 30 Display device 31 Display Unit 31a frame unit 32 pointer function ON / OFF detection unit 33 horizontal position detection unit 34 vertical position detection unit 35 pointer position data generation unit 36 interface unit 37 video transmission unit θ _A , θ _B , θ _C , θ _D , θ _E , θ _F Radiation angle information

Claims (7)

By detecting the position on the screen of the display device corresponding to the pointing direction of a remote control device (hereinafter referred to as a pointer remote controller) having a pointer function as the pointer position, the screen corresponds to the change in the pointing direction of the pointer remote controller. In the pointer remote control device for moving and controlling the pointer displayed above,
Pointer remote control
A radiation generating unit for generating scanning light on which radiation angle information is mounted and the radiation angle periodically changes in a two-dimensional direction;
The display device
A display unit having a screen on which an image including a pointer is displayed;
A plurality of light receiving portions for receiving the scanning light;
A position detection unit that detects the position of the pointer on the screen of the display unit corresponding to the pointing direction of the pointer remote controller based on the radiation angle information included in the light received by the plurality of light receiving units;
A pointer display control unit for controlling movement of a pointer displayed on the screen of the display unit based on a detection output of the position detection unit;
A pointer remote control device comprising: The light generation unit generates horizontal scanning light whose emission angle periodically changes in the horizontal direction and vertical scanning light whose emission angle changes periodically in the vertical direction,
The light receiving unit includes a first light receiving unit having a plurality of light receiving units for receiving the horizontal scanning light, and a second light receiving unit having a plurality of light receiving units for receiving the vertical scanning light,
The position detector is
A lateral position detection unit that detects a lateral position of the pointer on the screen of the display unit corresponding to the pointing direction of the pointer remote controller based on the radiation angle information included in the light received by the plurality of first light receiving units; ,
A vertical position detection unit that detects a vertical position of the pointer on the screen of the display unit corresponding to the pointing direction of the pointer remote controller based on the radiation angle information included in the light received by the second light receiving unit;
The pointer remote control device according to claim 1, further comprising: The first light receiving unit includes three horizontal light receiving units that are arranged in the horizontal direction of the display unit and receive the horizontal scanning light,
The second light receiving unit includes three vertical light receiving units that are arranged in the vertical direction of the display unit and receive the vertical scanning light.
The horizontal position detection unit is configured to display a pointer on the screen of the display unit corresponding to the pointing direction of the pointer remote controller based on each radiation angle information included in the light having the maximum light intensity received by the three horizontal light receiving units. Detect the lateral position,
The vertical position detection unit is configured to display the pointer on the screen of the display unit corresponding to the pointing direction of the pointer remote controller based on the radiation angle information included in the light having the maximum light intensity received by the three vertical light receiving units. The pointer remote control device according to claim 2, wherein a vertical position is detected.   The three horizontal light receiving portions are disposed at a left end portion, a right end portion, and a middle portion between the left end portion and the right end portion of the display portion, and the three vertical light receiving portions are the upper end portions of the display portion. 4. The pointer remote control device according to claim 3, wherein the pointer remote control device is disposed at a lower end portion and at a middle portion between the upper end portion and the lower end portion. The light generator is
A horizontal scanning light generating unit that generates horizontal scanning light having a bright portion extending in the vertical direction on which radiation angle information is mounted and the radiation angle periodically changes in the horizontal direction;
A vertical scanning light generation unit that generates vertical scanning light having a bright portion extending in the horizontal direction, on which radiation angle information is mounted, and the radiation angle periodically changes in the vertical direction;
The pointer remote control device according to any one of claims 2 to 4, further comprising: The pointer remote controller further includes a remote controller tilt angle detector that detects a rotation angle around the optical axis of the pointer remote controller,
The light generation unit transmits the detected rotation angle information or information indicating that the detected rotation angle is within a predetermined angle range on the horizontal scanning light and / or vertical scanning light,
The display device, on the screen of the display unit based on the rotation angle information received through the first or second light receiving unit or information indicating that the detected rotation angle is in a predetermined angle range, The pointer remote control device according to any one of claims 2 to 5, further comprising attention information display control means for displaying attention information for noting a user. The pointer remote control is
A normal remote control unit for outputting normal remote control code information;
A remote control tilt angle detection unit for detecting a rotation angle around the optical axis of the pointer remote control,
The normal remote control unit transmits the detected rotation angle information or information indicating that the detected rotation angle is within a predetermined angle range,
The display device includes:
A remote control receiving unit for receiving a remote control code from the normal remote control unit;
Attention information for paying attention to the user is displayed on the screen of the display unit based on the rotation angle information received via the remote control receiving unit or information indicating that the detected rotation angle is within a predetermined angle range. Attention information display control means,
The pointer remote control device according to any one of 2 to 5, further comprising:

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