JP2013121175A - Wireless receiver, control method of wireless receiver, wireless reception program and recording medium storing wireless reception program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless receiver in which the receiving means of a remote controller and a proximity sensor are commonized, and malfunction can be prevented when the remote controller or the proximity sensor is operated, and to provide a control method of the wireless receiver, a wireless reception program and a recording medium for storing the wireless reception program.SOLUTION: When a first LED 4 emits light while PD 2 is not outputing a reception signal, and emission of light from the first LED 4 is stopped after a light reception signal is output from the PD2, a determination is made that a signal is input due to an external factor of a remote controller 10, or the like, if the PD 2 is outputing the light reception signal, and the remote controller code is identified. If the PD 2 is not outputing the light reception signal, a determination is made that the light emitted from the first LED 4 and reflected on an object is received, and that the object is approaching.

Description

  The present invention relates to a wireless receiver capable of detecting an object from a reflected wave of a radio wave transmitted from a transmitter and receiving a radio wave including an operation signal output from a remote controller, and control of the wireless receiver The present invention relates to a method, a wireless reception program, and a recording medium storing the wireless reception program.

  Conventionally, in an electronic device such as an audio device, infrared light (infrared light) is emitted from a light emitting element such as an LED (light emitting diode), and the reflected light reflected by an object is received by a light receiving element such as a photodiode. A proximity sensor that detects the approach of an object such as a hand by detecting it is used (see, for example, Patent Document 1).

  In addition, a remote controller (hereinafter referred to as a remote controller) using infrared rays is often used for operating electronic devices.

  Since both the proximity sensor and the remote control described above use the same radio wave (infrared rays), if both are provided in an electronic device, the proximity sensor operates in response to an operation signal from the remote control, or the reflected light from the proximity sensor is transmitted to the remote control. There was a problem that a malfunction occurred that could be recognized as an operation signal. This problem will be described in detail with reference to FIG.

  First, FIG. 1A is a waveform diagram when the proximity sensor malfunctions due to an operation signal from the remote controller. When the light emission of the proximity sensor LED and the output of the remote control operation signal are simultaneously performed at time t1 in FIG. 1A, in the photodiode as the light receiving element, approximately the same time as the reflected light of the proximity sensor LED is incident. In this case, the same waveform as that emitted from the proximity sensor LED is observed. Therefore, even if there is no object such as a hand and no reflected light is detected, a malfunction occurs if an object is detected.

  Next, FIG.1 (b) is a wave form diagram in case the receiving part of a remote control malfunctions with the reflected light of a proximity sensor. In FIG. 1B, when the waveform as shown at the top is an operation signal of the remote controller, the proximity sensor LED 1 emits light at times t1 and t3, and the proximity sensor LED 2 emits light at time t2, respectively. Then, if each reflected light is detected, the waveform at the photodiode will be the same as the remote control operation signal, so even if the remote control operation signal is not actually output, it will malfunction if the remote control operation signal is received. End up.

  Therefore, conventionally, as described in Patent Document 2, when infrared rays are used for the remote control light receiving element, different radio waves are used, such as using ultrasonic waves for the proximity sensor (ranging sensor).

JP-A-8-113098 Japanese Patent No. 32507779

  However, in the television near hearing prevention device described in Patent Document 2, as described above, infrared light is used for the remote control and ultrasonic waves are used for the distance measuring sensor, so that the receiving means can be shared. Therefore, it has been difficult to reduce costs such as the number of parts.

  Accordingly, the present invention provides, for example, a wireless receiver, a control method for a wireless receiver, and a wireless receiver that can share a remote control and a proximity sensor receiving means and prevent malfunctions when the remote controller and proximity sensor operate. It is an object to provide a recording medium storing a program and a wireless reception program.

  In order to solve the above-described problem, the wireless reception device according to claim 1, transmission means for transmitting a radio wave to detect the approach of an object, and reception means for receiving the radio wave and outputting a reception signal And an object detection means for detecting the object based on the reception signal output from the reception means; and the radio wave transmitted from an external remote controller based on the reception signal output from the reception means; An identification means for identifying an operation signal using the same type of radio wave, wherein the reception means transmits the reception signal before and after the transmission means transmits the radio wave. A determination means for determining whether the reception means does not output the reception signal before and after the transmission means transmits the radio wave to and from the transmission means. In this case, the receiving means detects the object by the object detecting means, and the receiving means outputs the received signal either before or after the determining means transmits the radio wave to the transmitting means. And control means for controlling the identification means to identify the operation signal transmitted by the remote controller when it is determined that it is output.

  The method for controlling a wireless reception device according to claim 5 includes: a transmission unit that transmits a radio wave to detect approach of an object; and a reception unit that receives the radio wave and outputs a reception signal. In the wireless reception device, the object detection step for detecting the object based on the reception signal output by the reception unit, and the external remote controller transmitted based on the reception signal output by the reception unit An identification step for identifying an operation signal using a radio wave of the same type as a radio wave, and a control method for a radio reception apparatus, wherein the radio wave is transmitted to the transmission means before and after the radio wave is stopped A determination step of determining whether or not the reception means outputs the reception signal; and the reception before and after the transmission means transmits the radio wave in the determination step If it is determined that the stage does not output the received signal, the object is detected in the object detection step, and before the radio wave is transmitted to the transmission means in the determination step and after the radio wave is stopped A control step for performing control so as to identify the operation signal transmitted by the remote controller in the identification step when it is determined that the reception unit outputs the reception signal It is characterized by being.

  The wireless reception program according to claim 6, comprising: a transmission unit that transmits a radio wave to detect approach of an object; and a reception unit that receives the radio wave and outputs a reception signal. The computer detects the object based on the received signal output from the receiving means, and the wireless signal transmitted from an external remote controller based on the received signal output from the receiving means. A wireless reception program that functions as an identification unit that identifies an operation signal using a radio wave of the same type as a wave, the reception unit before and after transmitting the radio wave to the transmission unit A determination means for determining whether or not the reception signal is output; and the reception means before and after causing the transmission means to transmit the radio wave by the determination means When it is determined that no communication signal is output, either the object detection means detects the object, and the determination means either before transmitting the radio wave to the transmission means or after stopping When the computer determines that the receiving unit is outputting the received signal, the computer controls the identifying unit to identify the operation signal transmitted by the remote controller. It is characterized by functioning.

It is the timing chart which showed the example of the malfunctioning in the conventional radio | wireless receiver. It is a block diagram of the infrared receiver concerning one Example of this invention. It is a flowchart of operation | movement of the infrared receiver shown by FIG. FIG. 3 is a timing chart when the infrared receiver shown in FIG. 2 receives only a signal from a remote controller. It is a timing chart at the time of receiving only the reflected light of LED in the infrared receiver shown by FIG. FIG. 3 is a timing chart when a signal from a remote controller and reflected light from an LED are simultaneously received by the infrared receiver shown in FIG. 2.

  Hereinafter, a wireless receiver according to an embodiment of the present invention will be described. In the wireless reception device according to the embodiment of the present invention, the determination unit outputs a reception signal indicating that the reception unit has received a radio wave before and after the transmission unit has transmitted the radio wave. If the determination means determines that the reception means is not outputting a reception signal before and after the transmission means transmits the radio wave to the transmission means, the object detection means If the receiving means determines that the receiving means is outputting a received signal either before or after the transmitting means transmits the radio wave by the determining means, a remote controller is connected to the identifying means. Since the control is performed so that the transmitted operation signal is identified, when the reception unit does not output the reception signal indicating that the reception unit has received the radio wave before and after the transmission unit transmits the radio wave. , Means of sending It is possible to detect the approach of an object on the assumption that the reflected wave of the sender's radio wave is received, and a reception signal indicating that the reception means has received the radio wave before or after the transmission means has transmitted the radio wave. Is output, it is determined that there is a high possibility that a remote control operation signal is input instead of a reflected wave, and the remote control operation signal can be identified. Therefore, since either the remote control operation signal identification or the proximity sensor detection is selected and performed by the reception signal of the reception means before the transmission means is transmitted and after being stopped, the reception means is shared. In addition, it is possible to prevent malfunctions such as recognizing an operation signal of a remote control as a reflected wave of a proximity sensor or recognizing a reflected wave of a proximity sensor as an operation signal of a remote control.

  In addition, the determination means causes the transmission means to transmit a radio wave in a state where the reception means does not output the reception signal, and the reception means stops the transmission of the radio wave after the reception means outputs the reception signal. Determining whether or not the receiving means is outputting a received signal, and the control means detects the object to the object detecting means when the determining means determines that the receiving means is not outputting the received signal. If the determination unit determines that the reception unit is outputting a reception signal, the identification unit may identify the operation signal transmitted by the remote controller. By doing so, when the receiving means is not outputting the received signal and the transmitting means is transmitted and stopped, it is determined whether or not the receiving means is outputting the received signal. It is possible to determine whether or not the receiving means is outputting a reception signal indicating that a radio wave has been received before and after transmitting the radio wave to the means, and control is performed based on the result of the determination. In order for the means to operate the identification means or the object detection means, the receiving means can be shared, and the operation signal of the remote control is recognized as the reflected wave of the proximity sensor, or the reflected wave of the proximity sensor is operated by the remote control It is possible to prevent malfunction such as recognition as a signal.

  Further, the control unit may cause the transmission unit to stop transmitting the radio wave for a predetermined time when the identification unit identifies the operation signal transmitted from the remote controller. In this way, when the radio wave indicating the operation of the remote control cannot be accurately recognized, the operation as the proximity sensor is stopped for a predetermined period, and only the radio wave output by the remote control can be received again. . Therefore, there is a high possibility that radio waves indicating the operation of the remote controller can be accurately recognized.

  Further, a plurality of transmission means may be provided, and the determination by the determination means and the control by the control means may be sequentially performed for each transmission means. By doing so, the movement of an object such as a hand can be detected, and for example, an operation such as a wipe can be detected.

  In the determination method of the wireless reception device according to the embodiment of the present invention, the determination unit outputs a reception signal indicating that the reception unit has received the radio wave before and after the transmission unit transmits the radio wave. In the control step, if it is determined in the determining step that the receiving means does not output a reception signal before and after the transmitting means transmits the radio wave, the object detecting step If the receiving means determines that the receiving means is outputting the received signal either before or after the transmitting means has transmitted the radio wave in the determining step, the identifying step is performed. Control is performed so that the operation signal transmitted by the remote controller is identified, so that the reception means receives the radio wave before and after the transmission means transmits the radio wave. When the reception signal indicating is not output, it is possible to detect the approach of the object on the assumption that the reflected wave of the sender's radio wave is received from the transmission means, and before or after the transmission means transmits the radio wave If the receiving means outputs a reception signal indicating that a radio wave has been received, it is determined that there is a high possibility that a remote control operation signal is input instead of a reflected wave, and the remote control operation signal is identified. Can be done. Therefore, since either the remote control operation signal identification or the proximity sensor detection is selected and performed by the reception signal of the reception means before the transmission means is transmitted and after being stopped, the reception means is shared. In addition, it is possible to prevent malfunctions such as recognizing an operation signal of a remote control as a reflected wave of a proximity sensor or recognizing a reflected wave of a proximity sensor as an operation signal of a remote control.

  In the wireless reception program according to the embodiment of the present invention, the determination unit outputs a reception signal indicating that the reception unit has received the radio wave before and after the transmission unit transmits the radio wave. If the determination means determines that the reception means is not outputting a reception signal before and after the transmission means transmits the radio wave to the transmission means, the object detection means If the receiving means determines that the receiving means is outputting a received signal either before or after the transmitting means transmits the radio wave by the determining means, a remote controller is connected to the identifying means. Since the control is performed so that the transmitted operation signal is identified, when the reception unit does not output the reception signal indicating that the reception unit has received the radio wave before and after the transmission unit transmits the radio wave. , Departure It is possible to detect the approach of an object on the assumption that the reflected wave of the sender's radio wave is received from the means, and to indicate that the receiving means has received the radio wave before or after stopping the radio means to transmit the radio wave When a signal is output, it is determined that there is a high possibility that a remote control operation signal is input instead of a reflected wave, and the remote control operation signal can be identified. Therefore, since either the remote control operation signal identification or the proximity sensor detection is selected and performed by the reception signal of the reception means before the transmission means is transmitted and after being stopped, the reception means is shared. In addition, it is possible to prevent malfunctions such as recognizing an operation signal of a remote control as a reflected wave of a proximity sensor or recognizing a reflected wave of a proximity sensor as an operation signal of a remote control.

  Further, the above-described wireless reception program may be stored in a computer-readable recording medium. In this way, the program can be distributed as a single unit in addition to being incorporated in the device, and version upgrades can be easily performed.

  An infrared receiver 1 as a wireless receiver according to an embodiment of the present invention will be described with reference to FIGS. The infrared receiver 1 is provided in an electronic device such as an audio device, for example, and includes a photodiode (PD) 2, a resistor 3, a first LED 4, a second LED 5, and a microcomputer 6 as shown in FIG. ing.

  The PD 2 as a receiving means is a light receiving element that receives infrared light as a radio wave incident from the outside. For example, the PD 2 is provided on a surface (front) facing a user of an electronic device case in which the infrared receiving device 1 is provided. It has been. As shown in FIG. 2, the PD 2 has an anode connected to the power source and a cathode connected to one end of the resistor 3. The PD 2 receives reflected light of infrared light emitted from the first LED 4 and the second LED 5 described later, infrared light emitted from the remote controller 10 described later, and outputs an electrical signal (light reception signal) corresponding to the light reception level. To do. The resistor 3 is connected in series with the PD2, one end side is connected to the cathode side of the PD2, and the other end side is grounded.

  As shown in FIG. 2, the first LED 4 and the second LED 5 serving as transmitting means have an anode connected to a power source, a cathode connected to the microcomputer 6, and light emission that emits infrared light as a radio wave under the control of the microcomputer 6. It is a diode. The first LED 4 and the second LED 5 are provided, for example, on the front surface of the case of the electronic device in which the infrared receiving device 1 is provided, with a space therebetween in the horizontal direction and the vertical direction.

  A microcomputer 6 serving as an object detection unit, an identification unit, a determination unit, and a control unit is a microcomputer incorporating a CPU, a memory, and the like, and performs light emission control as a driver for the first LED 5 and the second LED 5. Further, the microcomputer 6 detects the reflected light of the infrared light emitted from the first LED 5 or the second LED 5 from the light reception signal received by the PD 2 to detect the approach of the object, or the remote controller 10 described later from the light reception signal received by the PD 2. The operation signal is identified from the infrared light output (emitted).

  As shown in FIG. 2, the remote controller 10 includes an operation unit 11, a control unit 12, and an LED 13.

  The operation unit 11 includes, for example, a plurality of buttons for operating an electronic device in which the infrared receiving device 1 is provided.

  The control unit 12 causes the LED 13 to emit light along operation information (remote control code) corresponding to the button operated by the operation unit 11. Although details will be described later, the remote control code is serial data composed of a plurality of Hi levels and Low levels, and includes identification of manufacturers (devices) and operation contents.

  The LED 13 converts the remote control code into infrared rays under the control of the control unit 12 and emits it. That is, the same type of radio waves as the first LED 4 and the second LED 5 are transmitted.

  Next, the operation of the infrared receiver 1 having the above-described configuration will be described with reference to the flowchart of FIG. The flowchart shown in FIG. 3 is executed by the microcomputer 6.

  First, in step S1, the infrared receiver 1 is activated and the process proceeds to step S2. Activation means that the PD 2, the first LED 4, the second LED 5, etc. are supplied with power and become operable.

  Next, in step S2, it waits and progresses to step S3. In this step, it is not necessary to actually wait for a specific period, and the process may proceed immediately to the next step S3.

  Next, in step S3, it is determined whether or not a signal is input to PD2, and if it is input (in the case of Yes), the process proceeds to step S4, and if it is not input (in the case of No), step S6 is performed. Proceed to In this step, it is determined whether the PD 2 receives infrared light and outputs a light reception signal.

  Next, in step S4, it is determined whether or not the signal input in step S3 is a component code. If it is a component code (Yes), the process proceeds to step S5, and if it is not a component code (in the case of No). ) Returns to step S2. A component code (also called a manufacturer code or a custom code) is a code (sign) at the head of a remote control code, and a unique code is assigned to each manufacturer. That is, by analyzing whether or not this component code, the input signal should be ignored, such as an operation signal for an electronic device provided with the infrared receiver 1, an operation signal for other electronic devices, disturbance light, etc. It can be determined whether the signal.

  Next, in step S5, since it is determined in step S4 that the input signal is a component code, the remaining codes after the component code of the remote control code are read, and the process returns to step S2. The read remote control code is output from the microcomputer 6 (infrared receiving device 1) to another microcomputer (not shown) in the electronic device, a control circuit, etc., and an operation according to the remote control code is performed.

  On the other hand, in step S6, the first LED 4 is caused to emit light, and the process proceeds to step S7. In this step, since it is determined in step S3 that the PD 2 is not receiving infrared light from the outside, the first LED 4 is caused to emit light so as to operate as a proximity sensor. That is, the radio wave is transmitted to the transmission unit in a state where the reception unit is not outputting the reception signal.

  Next, in step S7, it is determined whether or not a signal is input to the PD 2. If it is input (in the case of Yes), the process proceeds to step S8, and if it is not input (in the case of No), the process proceeds to step S10. Proceed to In this step, as in step S3, it is determined whether the PD 2 receives infrared light and outputs a light reception signal. Since the microcomputer 6 controls the light emission timing of the first LED 4 as described in step S6, the PD 2 may receive the reflected light reflected by the first LED 4 on the object in this step. I can understand that.

  Next, in step S8, the light emission of the first LED 4 is stopped, and the process proceeds to step S8.

  Next, in step S9, it is determined whether or not a signal is still input to the PD2, and if it is input (in the case of Yes), the process proceeds to step S11, and if it is not input (in the case of No), a step is performed. Proceed to S13. In this step, similarly to steps S3 and S7, it is determined whether PD2 receives infrared light and outputs a light reception signal. However, even if light emission of the first LED 4 is stopped in step S8, PD2 It is determined whether or not the infrared light is continuously received. That is, it is determined whether or not the receiving means is outputting a received signal when the transmitting means stops transmitting radio waves after the receiving means outputs the received signal.

  In step S10, the light emission of the first LED 4 is stopped, and the process proceeds to step S11.

  Next, in step S11, it is determined that an object is not approaching in front of the first LED 4, and the process proceeds to step S12. In this step, as a result of the determination in step S9, it has been found that the PD 2 receives infrared light even when the light emission of the first LED 4 is stopped. Therefore, the PD 2 receives the red light emitted from the first LED 4. It is determined that the external light is not reflected light reflected from the object but is received by an external factor such as an operation signal of the remote controller 10. That is, since it is determined that the receiving means is outputting a received signal, the identifying means is made to identify the operation signal transmitted by the remote controller.

  Next, in step S12, it is determined whether or not the signal input in step S9 is a component code. If the signal is a component code (Yes), the process proceeds to step S5, and if it is not a component code (No). ) Proceeds to step S14. That is, this step and step S5 function as an identification step.

  In step S13 as an object detection step, it is determined that an object has approached in front of the first LED 4, and the process proceeds to step S14. In this step, as a result of the determination in step S9, it has been found that when the light emission of the first LED 4 is stopped, the PD 2 does not receive the infrared light. Therefore, the PD 2 is receiving the red light emitted from the first LED 4. It is determined that the external light is reflected light reflected from the object. That is, since it is determined that the reception unit does not output a reception signal, the object detection unit is caused to detect the object.

  Next, in step S14, the second LED 5 is caused to emit light, and the process proceeds to step S15. After this step, the operations of steps S6 to S13 performed on the first LED 4 are performed on the second LED 5. That is, when using a plurality of LEDs, the operations in steps S6 to S13 may be repeated. In the present invention, one LED may be used. In the case of one LED, step S12 may be No, and from step S13, it may return to step S2.

  Next, in step S15, it is determined whether or not a signal is input to the PD 2. If it is input (in the case of Yes), the process proceeds to step S16, and if it is not input (in the case of No), the process proceeds to step S18. Proceed to In this step, as in step S7, it is determined whether the PD 2 receives infrared light and outputs a light reception signal. Since the microcomputer 6 controls the light emission timing of the second LED 5 as described in step S14, the PD 2 may receive the reflected light reflected by the second LED 5 on the object in this step. I can understand that.

  Next, in step S16, the second LED 5 stops emitting light, and the process proceeds to step S17.

  Next, in step S17, it is determined whether or not a signal is still input to the PD 2. If it is input (in the case of Yes), the process proceeds to step S19, and if it is not input (in the case of No), a step is performed. Proceed to S21. In this step, similarly to step S9, it is determined whether or not the PD 2 continues to receive infrared light even if the light emission of the second LED 5 is stopped in step S16.

  In step S18, the light emission of the second LED 5 is stopped, and the process proceeds to step S19.

  Next, in step S19, it is determined that an object is not approaching in front of the second LED 5, and the process proceeds to step S20. In this step, as in step S11, as a result of the determination in step S17, it has been found that PD2 is receiving infrared light even if light emission of the second LED 5 is stopped. It is determined that the infrared light emitted from the second LED 5 is not the reflected light reflected by the object but the light received by an external factor such as an operation signal of the remote controller 10.

  Next, in step S20, it is determined whether or not the signal input in step S17 is a component code. If it is a component code (in the case of Yes), the process returns to step S5, and if it is not a component code (in the case of No) ) Returns to step S2. That is, this step and step S5 function as an identification step.

  In step S21 as the object detection step, it is determined that an object has approached in front of the second LED 5, and the process returns to step S2. In this step, as a result of the determination in step S17, it has been found that when the light emission of the second LED 5 is stopped, the PD 2 does not receive the infrared light. Therefore, the PD 2 is receiving the red light emitted from the second LED 5. It is determined that the external light is reflected light reflected from the object.

  Here, a specific operation example of the infrared receiver 1 will be described with reference to a timing chart. First, FIG. 4 shows a case where the first LED 4 and the second LED 5 do not emit light and the PD 2 receives (receives) the remote control code. In the case of FIG. 4, in the flowchart shown in FIG. 3, the process proceeds to steps S <b> 1, S <b> 2, S <b> 3 and the signal is input to PD <b> 2, so the process proceeds to step S <b> 4. In S5, the remaining remote control code is read, and the process returns to Step S2.

  Next, FIG. 5 shows a case where the first LED 4 and the second LED 5 emit light to detect an object and no remote control code is input. In the case of FIG. 5, in the flowchart shown in FIG. 3, the process proceeds to steps S <b> 1, S <b> 2, S <b> 3, and no signal is input to PD <b> 2, so the process proceeds to step S <b> 6. And since the signal is input into PD2 by step S7, it progresses to step S8 and light emission of 1st LED4 is stopped. In step S9, since no signal is input to PD2, the process proceeds to step S13, and it is determined that the object approaches the first LED 4. And it progresses to step S14 and makes 2nd LED5 light-emit. The flow chart of the second LED 5 also proceeds in the same manner as the first LED 4 (steps S14, S15, S16, S17, and S21). In step S21, it is determined that the object has approached the second LED 5, and the process returns to step S2. In FIG. 5, the PD 2 is receiving light at the same time as the light emission of the first LED 4 and the second LED 5. This is because the reflected light reaches the PD 2 in a short time because the object is approaching. Strictly speaking, the PD 2 receives light after the light emission of the first LED 4 and the second LED 5.

  Next, FIG. 6 shows a case where a remote control code is input simultaneously with the light emission of the first LED 4. The remote control code has the same waveform as in FIG. In the case of FIG. 6, in the flowchart shown in FIG. 3, the process proceeds to steps S <b> 1, S <b> 2, S <b> 3, and no signal is input to PD <b> 2, so the process proceeds to step S <b> 6. And since the signal is input into PD2 by step S7, it progresses to step S8 and light emission of 1st LED4 is stopped. Then, since the signal is continuously input to the PD 2 in step S9, the process proceeds to step S11, and it is determined that the object is not approaching in front of the first LED 4. Since the signal input in step S12 is a component code, the process proceeds to step S5, the remaining remote control code is read, and the process returns to step S2.

  In the case of FIG. 6, since the first LED 4 emits light, there is a possibility that reflected light from the object is included in the signal received by the PD 2, but in this embodiment, the signal received by the PD 2 matches the component code. In the case, the received signal is identified as a remote control code. That is, in the case of FIG. 6, the operation as the receiving unit of the remote controller 10 is prioritized over the operation as the proximity sensor.

  The difference between FIG. 5 and FIG. 6 is the determination in step S9. In step S3, the first LED 4 emits light in a state where no light is received by the PD 2, and the light emitted from the first LED 4 is stopped by stopping the light emission of the first LED 4 after the PD 2 receives light (a signal is input). For example, the PD2 does not output any signal, but if the light is received by an external factor such as a remote control code, the PD2 outputs a signal. That is, the Low level before and after the first LED 4 becomes the Hi level is detected in Steps S3 and S6 to S9.

  In short, it is determined whether or not the receiving means is outputting the reception signal before and after stopping the radio wave from being transmitted to the transmitting means in the operation after Step S3 is No. That is, steps S3 and S6 to S9 function as determination steps. And when the Low level is detected before and after the first LED 4 becomes Hi level (when the receiving means determines that the receiving means is not outputting the received signal before and after the transmitting means has transmitted the radio wave) ) Operates as a proximity sensor to detect an object, and when the Hi level is detected before or after the first LED 4 becomes Hi level (before and after the transmitting means transmits radio waves) If it is determined that the receiving means is outputting a received signal in any case, the operation signal is identified as the light receiving unit of the remote controller 10. That is, step S9 functions as a control step.

  According to this embodiment, the PD 2 outputs the light reception signal when the first LED 4 emits light in a state where the PD 2 is not outputting the light reception signal, and the light emission of the first LED 4 is stopped after the PD 2 outputs the light reception signal. If it is determined that the input is due to an external factor such as the remote controller 10, the remote control code is identified. If the PD 2 does not output a light reception signal, the light emitted from the first LED 4 is reflected from the object. Since it is determined that the light is received and it is determined that the object is approaching, a light reception signal indicating that the PD 2 has received the infrared light is output before and after the infrared light is emitted to the first LED 4. In order to select and perform only one of reception of an operation signal from the remote controller 10 and detection of approach of an object depending on whether or not the remote controller 10 is used, the light receiving element can be used in common. Or it recognizes the reflected wave of the proximity sensor work signals, the reflected wave of the proximity sensor it is possible to prevent malfunction such recognizes an operation signal of the remote controller 10.

  In addition, since the first LED 4 and the second LED 5 and two light emitting elements are provided and the light emission of the first LED 4 and the light reception signal of the PD 2 are determined, the light emission of the second LED 5 and the light reception signal of the PD 2 are determined. Object detection can be performed individually, and movement of the object can be detected. For example, by executing the flowchart described above a plurality of times, if only the first LED 4 is detected at the first time and only the second LED 5 is detected at the second time, it can be detected that the object has moved in the direction from the first LED 4 to the second LED 5, An operation such as a wipe can be detected.

  In the above-described embodiment, when it is determined that an object is not approaching in front of the first LED 4 or the second LED 5, the light emission of the first LED 4 or the second LED 5 may be stopped for a predetermined time. By doing so, when the remote control code is input, the operation as the proximity sensor can be stopped and the operation as the remote control receiving unit can be prioritized.

  Moreover, although the infrared receiver 1 was demonstrated in the Example mentioned above, the radio wave used in common with a proximity sensor or the remote control 10 is not restricted to an infrared ray, and may be an ultrasonic wave or the like, and a proximity sensor that reflects and detects an object. The present invention can be applied to any radio wave that can be used for transmission of an operation signal of the remote controller 10 by forming serial data with a plurality of Hi levels and Low levels.

  According to the above-described embodiment, the following infrared receiver 1, the control method of the infrared receiver 1, and the wireless reception program can be obtained.

(Appendix 1) First LED 4 that emits infrared light to detect the approach of an object, PD2 that receives infrared light and outputs a light reception signal, and object detection based on the light reception signal output by PD2 An infrared receiving device 1 comprising: a microcomputer 6 for performing identification; and a microcomputer 6 for identifying an operation signal by infrared light transmitted from a remote controller 10 based on a light reception signal output from the PD 2.
A microcomputer 6 that determines whether or not the PD 2 outputs a reception signal before and after the infrared rays are emitted to the first LED 4;
If it is determined by the microcomputer 6 that the PD 2 is not outputting a reception signal before and after the infrared light is emitted from the first LED 4, the microcomputer 6 detects the object and the microcomputer 6 If it is determined that the PD 2 is outputting a reception signal either before the infrared light is emitted from the 1 LED 4 or after it is stopped, the microcomputer 6 is made to identify the operation signal emitted by the remote controller 10. A microcomputer 6 for controlling
An infrared receiver 1 comprising:

(Additional remark 2) In infrared receiver 1 provided with 1st LED4 which radiate | emits infrared light in order to detect the approach of an object, and PD2 which receives infrared light and outputs a light reception signal, PD2 output Infrared receiver comprising: step S13 for detecting an object based on the received light signal; and steps S5 and S12 for identifying an operation signal by infrared rays transmitted from the remote controller 10 based on the received light signal output from the PD 2. 1 control method,
Steps S3 and S9 for determining whether the PD 2 is outputting a reception signal before and after the infrared ray is emitted to the first LED 4;
If it is determined in steps S3 and S9 that the PD 2 has not output the reception signal before and after the infrared light is emitted from the first LED 4 and stopped, the object is detected in step S12. If it is determined in step S9 that the PD 2 is outputting the received signal either before or after the infrared light is emitted from the first LED 4, the operation signal emitted by the remote controller 10 in steps S5 and S12 is displayed. Step S9 for controlling the identification to be performed;
A method for controlling the infrared receiver 1 comprising:

(Additional remark 3) PD2 outputs the computer of the radio | wireless receiver provided with 1st LED4 which radiate | emits infrared light in order to detect the approach of an object, and PD2 which receives infrared light and outputs a light reception signal A wireless functioning as a microcomputer 6 that detects an object based on the received light signal and a microcomputer 6 that identifies an operation signal by infrared light transmitted from the remote controller 10 based on the received light signal output from the PD 2. A receiving program,
A microcomputer 6 that determines whether or not the PD 2 outputs a reception signal before and after the infrared rays are emitted to the first LED 4;
If it is determined by the microcomputer 6 that the PD 2 is not outputting a reception signal before and after the infrared light is emitted from the first LED 4, the microcomputer 6 detects the object and the microcomputer 6 If it is determined that the PD 2 is outputting a reception signal either before the infrared light is emitted from the 1 LED 4 or after it is stopped, the microcomputer 6 is made to identify the operation signal emitted by the remote controller 10. A microcomputer 6 for controlling
And a wireless reception program for causing the computer to function.

  According to the infrared receiver 1, the control method of the infrared receiver 1, and the wireless reception program, the PD 2 receives infrared light before and after the infrared light is emitted to the first LED 4 When the light reception signal is not output, it is possible to detect the approach of the object on the assumption that the reflected light is received, and the PD 2 receives the infrared light before or after the first LED 4 emits the infrared light or stops. When the light reception signal indicating that the operation has been performed is output, it is determined that there is a high possibility that the signal indicating the operation of the remote controller 10 rather than the reflected light is input, and the signal indicating the operation of the remote control 10 is identified. be able to. Therefore, the PD2 is used in common because the selection of the operation signal of the remote controller 10 and the detection of the proximity sensor are selected by the light receiving signal of the PD2 before the first LED 4 is emitted and after it is stopped. In addition, it is possible to prevent malfunctions such as recognizing a remote control code as a reflected wave of a proximity sensor or recognizing a reflected wave of a proximity sensor as a remote control code.

  In addition, the Example mentioned above only showed the typical form of this invention, and this invention is not limited to an Example. That is, various modifications can be made without departing from the scope of the present invention.

1 Infrared receiver (wireless receiver)
2 PD (Receiving means)
4 1st LED (transmission means)
5 Second LED (transmission means)
6 Microcomputer (object detection means, identification means, determination means, control means)
Whether a signal is input to the S3 PD (judgment step)
S5 Read remote control code (identification step)
S9 Whether a signal is input to the PD (judgment step, control step)
S12 Is the signal a component code (identification step)
S13: Determining that an object has approached the first LED (object detection step)
S17 Whether a signal is input to the PD (judgment step, control step)
S20 Is the signal a component code (identification step)
S21: Determining that an object has approached the first LED (object detection step)

Claims (7)

Transmitting means for transmitting a radio wave to detect the approach of the object, receiving means for receiving the radio wave and outputting a received signal, and detecting the object based on the received signal output by the receiving means And an object detection means for performing identification of an operation signal by a radio wave of the same type as the radio wave transmitted by an external remote controller, based on the received signal output from the reception means. A wireless receiver,
Determining means for determining whether or not the receiving means is outputting the received signal before and after transmitting the radio wave to the transmitting means;
If it is determined by the determination means that the reception means is not outputting the reception signal before and after transmitting the radio wave to the transmission means, the object detection means detects the object. If the determination means determines that the reception means is outputting the reception signal either before or after the transmission means transmits the radio wave, the identification means Control means for controlling to identify the operation signal transmitted by the remote controller;
A radio receiving apparatus comprising: The determination unit causes the transmission unit to transmit the radio wave in a state where the reception unit does not output the reception signal, and after the reception unit outputs the reception signal, the transmission unit transmits the radio wave to the transmission unit. When stopping transmission, determine whether the receiving means is outputting the received signal,
The control means causes the object detection means to detect the object when the determination means determines that the reception means does not output the reception signal, and the determination means causes the reception means to The wireless reception apparatus according to claim 1, wherein if it is determined that a reception signal is output, the identification unit is configured to identify the operation signal transmitted by the remote controller.   The control means, when causing the identification means to identify the operation signal transmitted by the remote controller, causes the transmission means to stop transmitting the radio wave for a predetermined time. Item 3. The wireless receiving device according to Item 1 or 2.   4. The radio reception according to claim 1, comprising a plurality of the transmission units, wherein the determination by the determination unit and the control by the control unit are sequentially performed for each of the transmission units. 5. apparatus. In the wireless receiving device comprising: a transmitting means for transmitting a radio wave to detect the approach of an object; and a receiving means for receiving the radio wave and outputting a received signal, the received signal output by the receiving means Based on the object detection step for detecting the object, and on the basis of the received signal output by the receiving means, the operation signal is identified by the same type of radio wave as the radio wave transmitted by an external remote controller. A method of controlling a wireless reception device comprising:
A determination step of determining whether or not the reception means is outputting the reception signal before and after transmitting the radio wave to the transmission means;
If it is determined in the determination step that the reception means does not output the reception signal before and after the transmission means transmits the radio wave, the object detection step detects the object. In the determination step, when it is determined that the reception unit is outputting the reception signal either before or after the radio wave is transmitted to the transmission unit, the remote step is performed in the identification step. A control step for controlling the controller to identify the operation signal transmitted;
A method for controlling a wireless reception device comprising: A computer of a wireless reception device, comprising: a transmission means for transmitting a radio wave to detect approach of an object; and a reception means for receiving the radio wave and outputting a reception signal. An object detection means for detecting the object based on a received signal, and an operation signal based on a radio wave of the same type as the radio wave transmitted by an external remote controller based on the received signal output by the reception means. A wireless reception program that functions as an identification unit that performs identification,
Determining means for determining whether or not the receiving means is outputting the received signal before and after transmitting the radio wave to the transmitting means;
If it is determined by the determination means that the reception means is not outputting the reception signal before and after transmitting the radio wave to the transmission means, the object detection means detects the object. If the determination means determines that the reception means is outputting the reception signal either before or after the transmission means transmits the radio wave, the identification means Control means for controlling to identify the operation signal transmitted by the remote controller;
And a wireless reception program for causing the computer to function.   A computer-readable recording medium in which the wireless reception program according to claim 6 is stored.

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