WO2022078037A1 - Control circuit, receiving apparatus, and control method - Google Patents

Control circuit, receiving apparatus, and control method Download PDF

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Publication number
WO2022078037A1
WO2022078037A1 PCT/CN2021/111984 CN2021111984W WO2022078037A1 WO 2022078037 A1 WO2022078037 A1 WO 2022078037A1 CN 2021111984 W CN2021111984 W CN 2021111984W WO 2022078037 A1 WO2022078037 A1 WO 2022078037A1
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WO
WIPO (PCT)
Prior art keywords
signal
earphone
remote control
stb
output
Prior art date
Application number
PCT/CN2021/111984
Other languages
French (fr)
Chinese (zh)
Inventor
服部聡志
松田拓次
Original Assignee
海信视像科技股份有限公司
东芝视频解决方案株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海信视像科技股份有限公司, 东芝视频解决方案株式会社 filed Critical 海信视像科技股份有限公司
Priority to CN202180004924.7A priority Critical patent/CN114642001A/en
Publication of WO2022078037A1 publication Critical patent/WO2022078037A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk

Definitions

  • the embodiments of the present application relate to a control circuit, a receiving device, and a control method.
  • a set-top box (Set Top Box: STB) is connected to a television receiver for digital broadcasting, and a video on demand (Video On Demand: VOD) service is provided.
  • VOD Video On Demand
  • Patent Document 1 Japanese Patent Laid-Open No. 2009-177756
  • the purpose of the present application is to provide a control circuit, a receiving device, and a control method for controlling an external device by using an earphone terminal.
  • the control circuit of some embodiments of the present application includes a detection signal receiving unit that receives the earphone when a plug of the earphone or a plug of an external device whose impedance is different from the earphone is inserted into the earphone terminal of the plug capable of connecting the earphone.
  • the detection signal output by the terminal, wherein the earphone is used for inputting the earphone signal as the sound signal of the sound content; the earphone signal receiving unit receives the earphone signal; whether the earphone is connected to the terminal or the external device is connected; and a determination unit that determines whether the output signal is to be the earphone signal or a signal different from the earphone signal based on the judgment.
  • FIG. 1 is a functional block diagram showing a configuration example of a system according to the embodiment
  • FIG. 2 is a functional block diagram showing a configuration example of a receiving apparatus according to the embodiment
  • FIG. 3 is a functional block diagram showing a configuration example of an STB according to the embodiment.
  • FIG. 4 is a flowchart showing an example of processing operations after a plug is connected to a socket in the receiving apparatus according to the embodiment
  • FIG. 5 is a diagram showing a relationship between a connection state of a socket and a plug and a state of a circuit in the receiving device of the embodiment
  • FIG. 6 is a flowchart showing an example of processing operations when the reception device according to the embodiment receives a signal from a remote controller
  • FIG. 7 is a flowchart showing an example of processing operations when the reception device according to the embodiment outputs an audio signal to headphones;
  • FIG. 8 is a flowchart showing an example of processing operations when the receiving apparatus according to the modified example outputs a serial log to a serial log device.
  • FIG. 1 is a functional block diagram showing a configuration example of a system according to the embodiment.
  • the receiving device 1 is a device for viewing digital content, for example, receiving broadcast signals of digital broadcasts such as 2K or 4K/8K terrestrial broadcast, satellite broadcast, etc., and obtaining broadcast programs from the broadcast signals, so that the viewer can watch the broadcast program.
  • a TV receiving device (Also known as television set, television receiver, broadcast signal receiving set).
  • the receiving apparatus 1 may include a computer including a CPU, a memory, and the like.
  • the receiving apparatus 1 may be provided with an external interface for connecting to a network such as the Internet, for example, and may be able to view content provided by a content server apparatus on the network.
  • the receiving apparatus 1 may acquire, for example, broadcast program data and the like of digital television broadcasting from a storage medium such as a DVD or a hard disk.
  • digital content acquired from a broadcast signal is referred to as a broadcast program
  • digital content acquired from a device on a network is simply referred to as content.
  • the receiving device 1 is provided with an earphone jack, and the earphone 3 is connected to the earphone 3 , and the user can listen to the audio data received by the receiving device 1 through the earphone 3 .
  • the receiving apparatus 1 in the present embodiment can connect a cable of a set-top box (STB) (referred to as an STB cable) to the earphone jack.
  • STB set-top box
  • the receiving device 1 includes an interface for inputting and outputting digital data such as HDMI (registered trademark), which is a High-Definition Multimedia interface, and can receive digital content data from an STB and provide digital content to a viewer.
  • HDMI registered trademark
  • STB High-Definition Multimedia interface
  • the reception apparatus 1 includes a remote controller 10 , and the user can remotely control the reception apparatus 1 from the remote controller 10 .
  • the receiving device 1 in the present embodiment can receive a remote control signal (STB remote control signal) output from the remote control 20 for STB, and can output the received signal to the STB from the earphone jack.
  • STB remote control signal a remote control signal
  • the STB 2 receives broadcast signals of digital broadcasts such as terrestrial broadcasts such as 2K or 4K/8K, satellite broadcasts, and other digital broadcasts from an antenna (not shown) or a cable for a cable TV, and acquires content data of broadcast programs from the broadcast signals.
  • STB2 acquires digital content from networks such as the Internet.
  • the STB2 outputs the digital content acquired through the STB cable to the outside.
  • the STB 2 includes a remote controller (remote controller 20 ) for the STB, and the user can remotely control the STB by operating the remote controller 20 .
  • the STB 2 may have functions such as video on demand (VOD), and the user can operate the remote controller 20 to cause the STB 2 to receive digital content and watch it on the display of the receiving device 1 .
  • VOD video on demand
  • the remote controller signal output by the remote controller 20 is referred to as an STB remote controller signal
  • the remote controller signal output by the remote controller 10 is referred to as a TV remote controller signal.
  • the STB 2 in the present embodiment can receive the STB remote control signal from an external device (corresponding to the receiving device 1 in the present embodiment) through the STB cable. That is, the STB 2 in the present embodiment can be controlled from the receiving apparatus 1 .
  • the STB 2 includes an interface for inputting and outputting digital data such as HDMI (registered trademark), and can output digital content data to the receiving device 1 .
  • the earphone 3 is, for example, an earphone or a speaker, and converts the sound signal into sound that the user can enjoy and outputs it.
  • the earphone 3 includes an earphone plug, is connected to the earphone jack of the receiving device 1 , outputs audio data received by the receiving device 1 as audio, and provides it to the user.
  • the network 4 is a network for allowing the STB 2 to acquire digital content, and may be, for example, the Internet or a dedicated network.
  • the remote controller 10 is a remote controller for controlling the receiving apparatus 1 .
  • the remote controller 20 is a remote controller for controlling the STB2.
  • FIG. 2 is a functional block diagram showing an example of the configuration of the receiving apparatus according to the embodiment.
  • the broadcast content data acquisition unit 11 acquires broadcast signals by processing broadcast waves received through an antenna (not shown) or a cable for a cable TV set in accordance with the digital broadcast standard, and performs the broadcast signals on the pre-use processing unit 112 .
  • the digital data stream obtained by separation, etc. is output.
  • the decoder unit 113 performs decoding and the like corresponding to image encoding, audio encoding, character encoding, and the like with respect to the digital data stream, and outputs image data, audio data, character data, and the like as broadcast program data.
  • the standard of digital broadcasting may be, for example, the MPEG2TS method adopted in 2K digital broadcasting, the MPEG media transmission method (MMT method) adopted in 4K/8K digital broadcasting, or the like.
  • the tuner 111 performs processing in accordance with the digital broadcasting standard on broadcast waves received through an antenna or cable for cable TV (not shown), and acquires a broadcast signal.
  • the preprocessing unit 112 performs demultiplexing processing of separating and outputting the broadcast signal into various digital data streams, error correction code decoding processing, and encryption decoding processing of decoding encrypted data, as processing in accordance with the digital broadcast standard. Wait.
  • the decoder unit 113 performs decoding and the like corresponding to image encoding, audio encoding, character encoding, and the like with respect to the digital data stream, and outputs image data, audio data, character data, and the like as broadcast program data (digital content data).
  • the output control unit 12 adjusts the output timing, display method, etc. of the digital content data input from the decoder unit 113 , the interface unit 18 and the like, and outputs the data to the display unit 131 and the speaker unit 132 .
  • the output control unit 12 may control so as not to output the audio data to the speaker unit 132 .
  • the display unit 131 is, for example, a display that displays images and characters.
  • the display unit 131 outputs the image data and character data output by the output control unit 12 as digital content such as images and characters that can be recognized by the user.
  • the speaker unit 132 is a speaker or the like that outputs sound.
  • the speaker unit 132 outputs the digital content data output from the output control unit 12 as digital content such as audio.
  • the user views digital content provided by broadcast signals, STB, and the like by viewing images, characters, and sounds output from the display unit 131 and the speaker unit 132 .
  • the signal control unit 14 acquires audio data from the broadcast content data acquisition unit 11 and outputs the audio signal to the earphone 3 .
  • the signal control unit 14 receives the STB remote control signal, and outputs the STB remote control signal from the earphone jack 147 to the STB connected as an external device.
  • the control microcomputer 141 generates and outputs a switching signal and an enable signal (EN signal) based on an insertion detection signal, a voltage detection signal, and the like input from the earphone jack 147 .
  • the control microcomputer 141 inputs the audio data input from the broadcast content data acquisition unit 11 to digital/analog conversion (D/A conversion), and outputs the output audio signal (earphone signal) to the earphone jack 147, or remotely controls the STB.
  • the device signal is output to the headphone jack 147.
  • the headphone signal receiving unit 1411 receives audio data (headphone signal) input from the broadcast content data acquisition unit 11, obtains and outputs the audio signal (headphone signal) by D/A conversion.
  • the detection signal receiving unit 1412 receives the insertion detection signal and the above-described voltage detection signal.
  • the connection determination unit 1413 determines whether the earphone 3 or the STB 2 is connected to the earphone jack 147 based on the insertion detection signal and the voltage detection signal.
  • the determination unit 1414 determines whether the output signal should be the aforementioned headphone signal or a signal other than the aforementioned headphone signal, based on the determination of the connection determination unit 1413 .
  • the control microcomputer 141 generates a switching signal and an enable signal (EN signal) based on the determination from the determination unit 1414, and can switch the output to the earphone jack 147 by controlling SW142, SW143, SW144, and the like.
  • the SW 142 is a switch for switching the output of the headphone signal and the STB remote control signal based on the switching signal input from the control microcomputer 141 .
  • the SW 143 is a switch for switching ON (on) or OFF (off) of the output to the earphone jack 147 based on the EN signal input from the control microcomputer 141 .
  • the SW 144 is a switch that switches ON or OFF of the connection based on a signal input from an inverter 145 .
  • the converter 145 is a converter that inverts the logic of the input signal and outputs it.
  • the resistance element 146 is a high resistance element that biases the voltage detection signal.
  • the earphone jack 147 includes a jack for connecting the plugs from the earphone 3 and the STB 2 , and performs input and output of various data and signals.
  • the earphone jack 147 outputs an insertion detection signal and a voltage detection signal.
  • the insertion detection signal is a signal indicating whether or not a plug is inserted into the earphone jack 147. Specifically, for example, the insertion detection signal may be pulled up to 3.3V, set to Hi when not inserted, and set to Low when inserted.
  • the voltage detection signal is the voltage of the plug of the external device, and is a signal whose voltage is determined based on the relationship between the impedance of the bias load and the external device.
  • the insertion detection signal When the plug is not connected, the insertion detection signal is a high signal (Hi signal), and the voltage detection signal is a high impedance signal (Hi-Z).
  • the insertion detection signal becomes a low signal (Low signal), and the voltage detection signal becomes the voltage of the external device connected via the connected plug.
  • the voltage detection signal becomes a low signal (Low signal)
  • the voltage detection signal becomes a high impedance signal (Hi- Z).
  • the RMT light receiving unit 15 receives remote control signals from the remote control 10 and the remote control 20 such as infrared signals.
  • the RMT light receiving unit 15 demodulates the received infrared signal and the like to obtain a remote control signal.
  • the signal determination unit 16 decodes the remote control signal received by the RMT light receiving unit 15, determines whether the obtained remote control signal is a TV remote control signal or an STB remote control signal, and outputs the remote control signal to the outside based on the determination result.
  • the signal determination unit 16 only needs to determine whether the remote control signal is a TV remote control signal. If the received remote control signal is a TV remote control signal, the receiving device 1 (for example, the control unit 17 ) continues to perform the TV remote control signal. control of the signal. On the other hand, if the received remote control signal is not a TV remote control signal, the received remote control signal is output to the signal control unit 14. That is, whether the signal determination unit 16 is specially provided or not is completely irrelevant to the control of the reception apparatus 1 by the normal TV remote control signal.
  • the TV remote control signal and the STB remote control signal can be determined by interpreting the remote control signals of the receiving device 1 and STB2 (for example, the control unit 17 of the receiving device 1 and the control unit 26 of the STB2)
  • the signal determination unit 16 may not be provided, and the remote controller signal may always be input to both the signal control unit 14 and the control unit 17 .
  • a transmission path for outputting the received remote control signal to the signal control unit 14 is added.
  • the control unit 17 controls each function of the reception device 1 . Specifically, the control unit 17 controls each function of the reception device 1 based on the TV remote control signal input from the signal determination unit. For example, when the user designates from the remote controller 10 whether to watch the broadcast program based on the broadcast signal or the content from the STB 2 , the control unit 17 receives the control signal from the remote controller 10 via the RMT light receiving unit 15 and controls the reception
  • the function of the device 1 is to perform an action designated by the user.
  • FIG. 2 it is also possible to perform data exchange and control between functional modules that are not particularly connected to the control unit 17.
  • the interface unit 18 is an interface for transmitting and receiving digital data with an external device.
  • the interface unit 18 may be HDMI (registered trademark), which is a high-definition multimedia interface, and outputs digital content data and the like received from the STB to the broadcast content data acquisition unit 11 and the output control unit 12 .
  • FIG. 3 is a functional block diagram showing a configuration example of an STB according to the embodiment.
  • the tuner 21 executes processing according to the standard of digital broadcasting with respect to broadcast waves received through an antenna or cable for cable TV (not shown), and acquires a broadcast signal.
  • the content data acquisition unit 22 performs demultiplexing processing, error correction code decoding processing, encryption decoding processing for decoding encrypted data, decoding corresponding to image encoding, audio encoding, character encoding, and the like with respect to the broadcast signal output from the tuner 21, Thereby, digital content data is acquired.
  • the content data acquisition unit 22 acquires digital content data from the network 4 .
  • the line input unit 23 exchanges signals with an external device (the receiving device 1 in this embodiment).
  • the STB remote controller signal is received from the receiving device 1 through the STB cable.
  • the line input unit 23 outputs the received STB remote control signal to the interface unit 24, and the interface unit 24 decodes the STB remote control signal and the like.
  • the interface unit 24 is connected to the network 4 and is an interface for performing data communication with devices and the like on the network 4 , and includes protocols such as TCP/IP and UDP/IP, for example.
  • the STB 2 can acquire digital content data on the network 4 through the interface unit 24 .
  • the interface unit 24 includes an interface for inputting and outputting digital data such as HDMI (registered trademark), and can output digital content data to the receiving device 1 .
  • the interface unit 24 decodes the remote control signal input from the RMT light receiving unit 25, etc., and outputs remote control command data based on the remote control signal to the control unit.
  • the RMT light receiving unit 25 is an interface for receiving a remote control signal such as an infrared signal output from the remote control 20 .
  • the RMT light receiving unit 25 demodulates the received infrared signal and the like, and acquires the remote control signal.
  • the RMT light receiving unit 25 outputs the received remote control signal to the control unit 17 .
  • the control unit 26 may include the function of a CPU, and when the RMT light receiving unit 25 receives a control signal from the remote controller 20, it extracts a control command from the control signal, and controls each function in the STB2 based on the extracted control command. For example, it is assumed that the user designates a program from the remote controller 20 in order to view a desired program using the VOD service provided by the STB2.
  • the remote controller 20 outputs a remote controller signal, and the control unit 26 receives the remote controller signal via the RMT light receiving unit 25 .
  • the control unit 26 acquires the information of the specified program from the received remote control signal, and controls the tuner unit 21 and the interface unit 24 according to the source of the specified program to acquire digital content data of the specified program.
  • the control unit 26 outputs the acquired digital content data from the interface unit 24 and transmits it to the receiving device 1 . Thereby, the user can watch the designated program from the display of the receiving apparatus 1 .
  • the reception apparatus 1 and the STB 2 are provided with dedicated remote controllers as the remote controller 10 and the remote controller 20, respectively.
  • the STB 2 cannot receive the remote control signal output from the remote control 20 .
  • the STB is often installed in a place that cannot be seen from passengers, and the STB may not be able to receive the STB remote control signal. Therefore, in general, it is desirable to provide a dedicated terminal for STB on a television receiver (corresponding to the receiver 1 ) installed in a place where it can be seen from a traveler, particularly on a display.
  • the STB remote control signal is received by using a remote control terminal (corresponding to the RMT light receiving unit 15 ) that is usually provided in a television receiver. That is, in the present embodiment, the RMT light receiving unit 15 of the television receiver 1 is used for both the remote controller 10 and the remote controller 20 .
  • the earphone jack 147 of the television receiver is used for the connection of the STB2.
  • the earphone 3 is connected to the earphone jack 147. However, in a hotel or the like, the earphone 3 may not be used. By connecting the STB2 cable, the earphone 3 can be effectively used.
  • the STB cable from the STB2 is connected to the earphone jack 147 of the receiving device, and the STB2 is controlled through the STB cable.
  • the RMT light receiving unit 15 of the receiving device 1 is caused to receive the STB remote control signal output from the remote control 20 , and the STB remote control signal is output from the receiving device 1 to the STB 2 through the STB cable.
  • the STB 2 performs an operation based on the received STB remote control signal.
  • FIG. 4 is a flowchart showing an example of processing operations after a plug is connected to a socket in the receiving apparatus according to the embodiment.
  • the SW143 When the SW143 receives the EN signal, it turns off the state of each switch. In addition, a signal obtained by logical inversion of the EN signal in SW145 is input to SW144. That is, the Hi signal is input to SW144, and SW144 turns on the switch (step S103). Therefore, when the earphone jack 147 is not connected, the EN signal is Low, the SW143 is OFF, and the SW144 is ON.
  • FIG. 5 is a diagram showing the relationship between the connection state of the socket and the plug and the state of the circuit in the receiving device according to the embodiment, and shows the states of various signals and the states of switches in each phase in each row .
  • No. 1 shows a state in which nothing is connected to the earphone jack 147 (state in step S103 of FIG. 4 ).
  • the insertion detection signal and the voltage detection signal are both high signals (H)
  • the EN signal at this time is Low (L)
  • the states of SW143 and SW144 are respectively to OFF and ON.
  • the switching signal, SW142 is "N/A" indicating an undetermined value (Not Applicable).
  • the insertion detection signal becomes a low signal (Low)
  • the control microcomputer 141 determines that the earphone is connected to the earphone according to the low signal of the insertion detection signal. Either the earphone 3 or the STB cable is connected to the jack 147 (Yes in step S101).
  • the control microcomputer 141 checks the voltage detection signal, and when the voltage detection signal is a high-impedance signal, determines that the STB cable is connected to the earphone jack 147 (in the case of Hi in step S104, S105). In this determination, the phenomenon that the input of the STB is a high-impedance signal is used.
  • the control microcomputer 141 sets the switching signal to a high signal (Hi) (step S106). If the switching signal of the high signal (Hi) is input to the SW142, the SW142 connects the switch to the transmission path of the remote control signal. Next, the control microcomputer 141 sets the EN signal to a high signal (Hi) (step S107). When the SW143 receives the EN signal, it turns the switch ON in the connected state. In addition, a signal obtained by logical inversion of the EN signal in SW145 is input to SW144. That is, the Low signal is input to SW144, and SW144 turns off the switch (step S108).
  • the EN signal becomes Hi
  • the switching signal becomes Hi
  • the SW143 becomes ON
  • the SW144 becomes OFF.
  • the resistance element 146 is disabled by turning OFF the SW 144, and the voltage detection signal becomes "N/A", thereby eliminating the influence on the STB remote control signal output from the earphone jack 147.
  • No. 2 of FIG. 5 shows a state in which the STB cable is connected to the earphone jack 147 .
  • "N/A" of the voltage detection signal in No. 2 indicates that the voltage detection signal is an undetermined value
  • "RC" of SW142 indicates that SW142 is connected to the transmission path of the remote control signal.
  • the control microcomputer 141 checks the voltage detection signal, and when the voltage detection signal is a low signal (Low), determines that an earphone is connected to the earphone jack 147 (Low in step S104, S109). In this determination, the phenomenon that the impedance of the earphone is lower than that of the STB is used for the phenomenon that the input of the STB is a high-impedance signal.
  • the control microcomputer 141 sets the switching signal to a low signal (Low) (step S110). If the switching signal of the low signal (Low) is input to the SW142, the SW142 connects the switch to the transmission path of the remote control signal. Next, the control microcomputer 141 sets the EN signal to a high signal (Hi) (step S111).
  • the SW143 When the SW143 receives the EN signal, it turns the switch ON in the connected state. In addition, a signal obtained by logical inversion of the EN signal in SW145 is input to SW144. That is, the Low signal is input to SW144, and SW144 turns off the switch (step S108). Therefore, when the earphone 3 is connected to the earphone jack 147, the EN signal becomes Hi, the switching signal becomes Low, the SW143 is turned on, and the SW144 is turned off. The resistance element 146 is disabled by turning OFF the SW 144 and the voltage detection signal becomes "N/A", thereby eliminating the influence on the headphone signal output from the headphone jack 147 . No. 3 of FIG.
  • FIG. 5 shows a state in which the earphone 3 is connected to the earphone jack 147 .
  • "N/A" of the voltage detection signal in No. 3 indicates that the voltage detection signal is undetermined, and "HP" of SW142 indicates that SW142 is connected to the transmission path of the headphone signal.
  • FIG. 6 is a flowchart showing an example of processing operations when the reception device according to the embodiment receives a signal from the remote controller.
  • the RMT light receiving unit 15 of the receiving device 1 receives the remote controller signal (step S201).
  • the signal determination unit 16 determines whether the remote control signal is a signal from the remote control 10 (TV remote control signal) or a signal from the remote control 20 (STB remote control signal). (step S202).
  • the signal determination unit 16 determines that the remote control signal is a TV remote control signal, it outputs the received remote control signal to the control unit 17 (step S203).
  • the control unit 17 controls various functions of the reception device 1 based on the received remote control signal (step S204).
  • the signal determination unit 16 determines that the remote control signal is the STB remote control signal, it outputs the received remote control signal to the signal control unit 14 (step S205).
  • the signal is processed according to the state of the earphone jack 147 recognized by the process of FIG. 4 (step S206).
  • the received remote control signal is output to the earphone jack 147, and the received remote control signal is transmitted from the earphone jack 147 to the STB through the STB cable (step S207).
  • the control microcomputer 141 discards the received remote control signal (step S208).
  • the earphone jack 147 is not connected, since the transmission path of the remote control signal is disconnected by at least SW143, the received remote control signal is discarded (step S209).
  • step S208 has an effect of preventing the remote control signal from becoming noise with respect to the sound output by the earphone 3 even when the RMT light receiving unit 15 receives the remote control signal while the user is listening to the sound with the earphone 3 .
  • FIG. 7 is a flowchart showing an example of processing operations when the reception device according to the embodiment outputs an audio signal to the earphone.
  • the audio signal data in the broadcast content is input to the signal control unit 14 (step S301).
  • the signal control unit 14 performs signal processing based on the state of the earphone jack 147 recognized by the process of FIG. 4 (step S302).
  • the control microcomputer 141 discards the received earphone signal (step S303).
  • the earphone signal received by the control microcomputer 141 is output to the earphone jack 147, from the earphone jack 147 to the earphone 3, and provides sound to the user (step S304).
  • the control microcomputer 141 discards the received earphone signal since the transmission path of the earphone signal is disconnected by at least SW143 (step S305).
  • the user can listen to the audio signal data received by the receiving device 1 from the earphone 3 as in the past.
  • the STB As an external device using the remote controller terminal of the receiving device 1 .
  • the infrared light receiving part (equivalent to the RMT light receiving part 25 ) of the remote controller for STB (equivalent to the remote control 20 ) is provided separately from the STB, there is also a problem of appearance, which is not preferable.
  • such a method is not adopted, and it is not necessary to provide a dedicated terminal for the remote controller for STB on the receiving device 1, but it can be performed by using the infrared light receiving part (corresponding to the RMT light receiving part 15) of the receiving device 1 Control of STB.
  • the signal control unit 14 uses the impedance difference between the STB and the earphone to determine which one is connected to the earphone jack 147, thereby determining whether to input the earphone signal or the STB remote control signal to the earphone jack 147. If the impedance difference is similarly utilized, other various signals can be fully utilized.
  • a device that receives serial log (Serial log) output (referred to as a serial log device) is used instead of the STB, and it is determined whether to input a headphone signal to the headphone jack 147 or to input a serial log log signal.
  • the serial log device may be a personal computer or the like.
  • serial logging device Since the serial logging device has a high impedance (Hi-Z) input like the STB, by connecting the plug from the serial logging device to the headphone jack 147 instead of the STB, it is possible to, similarly to the method of the previous embodiment, The serial log is output from the headphone jack 147 to the serial log device.
  • Hi-Z high impedance
  • the serial log is output from the headphone jack 147 to the serial log device.
  • the same state as the states of various signals and switches shown in FIG. 5 can be established by the processing flow of FIG. 4 (in each figure, STB is replaced by a serial log device).
  • the signal control unit 14 discriminates which is connected to the earphone jack 147 by using the difference in the voltage detection signal due to the difference in impedance between the serial logging device and the earphone, and generates a switching signal and an EN signal, thereby forming a
  • the states of various signals and switches shown in FIG. 5 are the same.
  • FIG. 8 is a flowchart showing an example of processing operations when the receiving apparatus according to the modified example outputs a serial log to a serial log device.
  • a serial log output unit (not shown) of the receiving apparatus 1 When a serial log output unit (not shown) of the receiving apparatus 1 generates and outputs a serial log, the serial log is input to the signal control unit 14 (step S401 ).
  • the signal control unit 14 performs signal processing based on the state of the earphone jack 147 recognized by the process of FIG. 4 (step S402).
  • the serial log received by the control microcomputer 141 is output to the headphone jack 147 and from the headphone jack 147 to the serial log device (step S403).
  • the control microcomputer 141 discards the received serial log (step S404).
  • the control microcomputer 141 discards the received serial log (step S405).
  • the receiving apparatus 1 can output the serial log from the earphone jack 147 to the serial log device.

Abstract

Provided are a control circuit for controlling an external apparatus by using an earphone terminal, a receiving apparatus, and a control method. The control circuit comprises: a detection signal receiving unit (1412), receiving, when a plug of an earphone (3) or a plug of an external device having an impedance different from that of the earphone is inserted into an earphone terminal (147) capable of connecting to a plug of an earphone, a detection signal outputted by the earphone terminal (147), the earphone (3) being used for inputting an earphone signal serving as a sound signal of sound content; an earphone signal receiving unit (1411), receiving the earphone signal; a connection determining unit (1413), determining, on the basis of the detection signal, whether the earphone (3) or the external device is connected to the earphone terminal (147); and a determination unit (1414), determining, on the basis of the determination, whether to set an output signal as the earphone signal or as a signal different from the earphone signal.

Description

控制电路、接收装置及控制方法Control circuit, receiving device and control method
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求在2020年10月16日提交日本专利局、申请号为2020-174345、发明名称为“控制电路、接收装置及控制方法”的日本专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Japanese Patent Application No. 2020-174345, filed in the Japan Patent Office on October 16, 2020, and entitled "Control Circuit, Receiving Device, and Control Method", the entire contents of which are hereby incorporated by reference in in this application.
技术领域technical field
本申请实施方式涉及控制电路、接收装置及控制方法。The embodiments of the present application relate to a control circuit, a receiving device, and a control method.
背景技术Background technique
在酒店等中，在数字广播用电视接收装置等上连接机顶盒(Set Top Box：STB)，提供视频点播(Video On Demand：VOD)的服务。In hotels and the like, a set-top box (Set Top Box: STB) is connected to a television receiver for digital broadcasting, and a video on demand (Video On Demand: VOD) service is provided.
在先技术文献prior art literature
专利文献Patent Literature
专利文献1：日本特开2009－177756号公报Patent Document 1: Japanese Patent Laid-Open No. 2009-177756
发明内容SUMMARY OF THE INVENTION
然而，STB等外部装置很多时候设置在旅客见不到的场所，在这样的情况下，因为STB无法接收STB用遥控器的信号，所以旅客无法利用遥控器进行STB的远程操作。However, external devices such as STBs are often installed in places that passengers cannot see. In such cases, since the STB cannot receive signals from the STB remote controller, passengers cannot remotely operate the STB using the remote controller.
本申请的目的在于提供利用耳机端子控制外部装置的控制电路、接收装置及控制方法。The purpose of the present application is to provide a control circuit, a receiving device, and a control method for controlling an external device by using an earphone terminal.
本申请一些实施方式的控制电路具备：检测信号接收单元，当在能够连接耳机的插头的耳机端子上插入所述耳机的插头或阻抗不同于所述耳机的外部装置的插头时，接收所述耳机端子输出的检测信号，其中，所述耳机用于输入作为声音内容的声音信号的耳机信号；耳机信号接收单元，其接收耳机 信号；连接判断单元，其基于所述检测信号，判断在所述耳机端子上连接了所述耳机还是连接了所述外部装置；以及确定单元，其基于所述判断，确定将所述输出信号设为所述耳机信号还是设为与所述耳机信号不同的信号。The control circuit of some embodiments of the present application includes a detection signal receiving unit that receives the earphone when a plug of the earphone or a plug of an external device whose impedance is different from the earphone is inserted into the earphone terminal of the plug capable of connecting the earphone. The detection signal output by the terminal, wherein the earphone is used for inputting the earphone signal as the sound signal of the sound content; the earphone signal receiving unit receives the earphone signal; whether the earphone is connected to the terminal or the external device is connected; and a determination unit that determines whether the output signal is to be the earphone signal or a signal different from the earphone signal based on the judgment.
附图说明Description of drawings
图1是示出实施方式的系统的构成例的功能模块图；FIG. 1 is a functional block diagram showing a configuration example of a system according to the embodiment;
图2是示出实施方式的接收装置的构成例的功能模块图；FIG. 2 is a functional block diagram showing a configuration example of a receiving apparatus according to the embodiment;
图3是示出实施方式的STB的构成例的功能模块图；3 is a functional block diagram showing a configuration example of an STB according to the embodiment;
图4是示出在实施方式的接收装置中在插口上连接了插头之后的处理动作例的流程图；4 is a flowchart showing an example of processing operations after a plug is connected to a socket in the receiving apparatus according to the embodiment;
图5是示出实施方式的接收装置中的插口和插头的连接状态与电路的状态之间的关系的图；5 is a diagram showing a relationship between a connection state of a socket and a plug and a state of a circuit in the receiving device of the embodiment;
图6是示出实施方式的接收装置从遥控器接收了信号时的处理动作例的流程图；6 is a flowchart showing an example of processing operations when the reception device according to the embodiment receives a signal from a remote controller;
图7是示出实施方式的接收装置将声音信号输出到耳机时的处理动作例的流程图；7 is a flowchart showing an example of processing operations when the reception device according to the embodiment outputs an audio signal to headphones;
图8是示出变形例的接收装置将串行日志输出到串行日志设备时的处理动作例的流程图。FIG. 8 is a flowchart showing an example of processing operations when the receiving apparatus according to the modified example outputs a serial log to a serial log device.
附图标记说明Description of reference numerals
1…接收装置，2…STB，3…耳机，4…网络，10…遥控器，11…广播内容数据获取部，12…输出选择部，14…信号控制部，15…RMT受光部，16…信号判定部，17…控制部，24…接口部，20…遥控器，1411…耳机信号接收，1412…检测信号接收部，1413…连接判断部，1414…确定部。1...receiver, 2...STB, 3...earphones, 4...network, 10...remote control, 11...broadcast content data acquisition unit, 12...output selection unit, 14...signal control unit, 15...RMT light receiving unit, 16... Signal determination unit, 17...control unit, 24...interface unit, 20...remote control, 1411...earphone signal reception, 1412...detection signal reception unit, 1413...connection determination unit, 1414...determination unit.
具体实施方式Detailed ways
以下，参照附图说明实施方式。Hereinafter, embodiments will be described with reference to the drawings.
图1是示出实施方式的系统的构成例的功能模块图。FIG. 1 is a functional block diagram showing a configuration example of a system according to the embodiment.
接收装置1是收看数字内容的设备，例如接收2K或4K/8K这样的地面波广播、卫星广播等数字广播的广播信号，从广播信号获取广播节目，使收看者能够收看广播节目的电视接收装置(也被称为电视机装置、电视接收机、广播信号接收装置)。接收装置1也可以具备具有CPU、存储器等的计算机。The receiving device 1 is a device for viewing digital content, for example, receiving broadcast signals of digital broadcasts such as 2K or 4K/8K terrestrial broadcast, satellite broadcast, etc., and obtaining broadcast programs from the broadcast signals, so that the viewer can watch the broadcast program. A TV receiving device (Also known as television set, television receiver, broadcast signal receiving set). The receiving apparatus 1 may include a computer including a CPU, a memory, and the like.
另外，接收装置1也可以具备例如用于与互联网等网络进行连接的外部接口，能够收看网络上的内容服务器装置提供的内容。另外，接收装置1也可以从例如DVD、硬盘等存储介质等获取数字电视广播的广播节目数据等。In addition, the receiving apparatus 1 may be provided with an external interface for connecting to a network such as the Internet, for example, and may be able to view content provided by a content server apparatus on the network. In addition, the receiving apparatus 1 may acquire, for example, broadcast program data and the like of digital television broadcasting from a storage medium such as a DVD or a hard disk.
此外，也有的情况下，将从广播信号获取的数字内容称为广播节目，而将从网络上的装置获取的数字内容简称为内容。In addition, in some cases, digital content acquired from a broadcast signal is referred to as a broadcast program, and digital content acquired from a device on a network is simply referred to as content.
另外，接收装置1具备耳机插口，连接耳机3，用户能够从耳机3收听接收装置1接收的声音数据。另外，本实施方式中的接收装置1能够在耳机插口上连接机顶盒(STB)的线缆(称为STB线缆)。In addition, the receiving device 1 is provided with an earphone jack, and the earphone 3 is connected to the earphone 3 , and the user can listen to the audio data received by the receiving device 1 through the earphone 3 . In addition, the receiving apparatus 1 in the present embodiment can connect a cable of a set-top box (STB) (referred to as an STB cable) to the earphone jack.
另外，接收装置1具备高清多媒体接口(High－Definition Multimedia interface)即HDMI(注册商标)等用于输入输出数字数据的接口，能够从STB接收数字内容数据，并向收看者提供数字内容。In addition, the receiving device 1 includes an interface for inputting and outputting digital data such as HDMI (registered trademark), which is a High-Definition Multimedia interface, and can receive digital content data from an STB and provide digital content to a viewer.
接收装置1具备遥控器10，用户能够从遥控器10远程控制接收装置1。另外，本实施方式中的接收装置1能够接收STB用的遥控器20输出的遥控器信号(STB遥控器信号)，并且能够将接收到的信号从耳机插口输出到STB。The reception apparatus 1 includes a remote controller 10 , and the user can remotely control the reception apparatus 1 from the remote controller 10 . In addition, the receiving device 1 in the present embodiment can receive a remote control signal (STB remote control signal) output from the remote control 20 for STB, and can output the received signal to the STB from the earphone jack.
STB2从未图示的天线、有线电视机用的线缆接收例如2K或4K/8K这样的地面波广播、卫星广播等数字广播的广播信号，并从广播信号获取广播节目的内容数据。另外，STB2从互联网等网络获取数字内容。STB2将通过STB线缆获取到的数字内容向外部输出。STB2具备STB用的遥控器(遥控器20)，用户能够通过操作遥控器20来远程控制STB。例如，STB2也可以具备视频点播(VOD)等功能，用户能够操作遥控器20，使STB2接收数字内容，用接收装置1的显示器收看。在后文中，将遥控器20输出的遥控器信号称为STB遥控器信号，将遥控器10输出的遥控器信号称为TV遥控器信号。另外，本实施方式中的STB2能够通过STB线缆从外部装置(在本实施方式 中，相当于接收装置1)接收STB遥控器信号。即，本实施方式中的STB2能够从接收装置1进行控制。另外，STB2具备HDMI(注册商标)等用于输入输出数字数据的接口，能够向接收装置1输出数字内容数据。The STB 2 receives broadcast signals of digital broadcasts such as terrestrial broadcasts such as 2K or 4K/8K, satellite broadcasts, and other digital broadcasts from an antenna (not shown) or a cable for a cable TV, and acquires content data of broadcast programs from the broadcast signals. In addition, STB2 acquires digital content from networks such as the Internet. The STB2 outputs the digital content acquired through the STB cable to the outside. The STB 2 includes a remote controller (remote controller 20 ) for the STB, and the user can remotely control the STB by operating the remote controller 20 . For example, the STB 2 may have functions such as video on demand (VOD), and the user can operate the remote controller 20 to cause the STB 2 to receive digital content and watch it on the display of the receiving device 1 . Hereinafter, the remote controller signal output by the remote controller 20 is referred to as an STB remote controller signal, and the remote controller signal output by the remote controller 10 is referred to as a TV remote controller signal. In addition, the STB 2 in the present embodiment can receive the STB remote control signal from an external device (corresponding to the receiving device 1 in the present embodiment) through the STB cable. That is, the STB 2 in the present embodiment can be controlled from the receiving apparatus 1 . In addition, the STB 2 includes an interface for inputting and outputting digital data such as HDMI (registered trademark), and can output digital content data to the receiving device 1 .
耳机3例如是耳机、扬声器，将声音信号转换成用户能够享受的声音并输出。耳机3具备耳机插头，被连接到接收装置1的耳机插口，将接收装置1接收的声音数据作为声音而输出，向用户提供。The earphone 3 is, for example, an earphone or a speaker, and converts the sound signal into sound that the user can enjoy and outputs it. The earphone 3 includes an earphone plug, is connected to the earphone jack of the receiving device 1 , outputs audio data received by the receiving device 1 as audio, and provides it to the user.
网络4是用于使STB2获取数字内容的网络，例如既可以是互联网，也可以是专用的网络。The network 4 is a network for allowing the STB 2 to acquire digital content, and may be, for example, the Internet or a dedicated network.
遥控器10是用于控制接收装置1的遥控器。The remote controller 10 is a remote controller for controlling the receiving apparatus 1 .
遥控器20是用于控制STB2的遥控器。The remote controller 20 is a remote controller for controlling the STB2.
图2是示出实施方式的接收装置的构成例的功能模块图。FIG. 2 is a functional block diagram showing an example of the configuration of the receiving apparatus according to the embodiment.
广播内容数据获取部11根据数字广播的标准，对通过未图示的天线、有线电视机用的线缆接收到的广播波进行处理，从而获取广播信号，并且对利用前处理部112进行广播信号的分离等而得到的数字数据流进行输出。解码器部113对于数字数据流进行与图像编码、声音编码、字符编码等对应的解码等，并作为广播节目数据，输出图像数据、声音数据、字符数据等。此外，数字广播的标准例如也可以是2K数字广播中采用的MPEG2TS方式、4K/8K数字广播中采用的MPEG媒体传输方式(MMT方式)等。The broadcast content data acquisition unit 11 acquires broadcast signals by processing broadcast waves received through an antenna (not shown) or a cable for a cable TV set in accordance with the digital broadcast standard, and performs the broadcast signals on the pre-use processing unit 112 . The digital data stream obtained by separation, etc. is output. The decoder unit 113 performs decoding and the like corresponding to image encoding, audio encoding, character encoding, and the like with respect to the digital data stream, and outputs image data, audio data, character data, and the like as broadcast program data. In addition, the standard of digital broadcasting may be, for example, the MPEG2TS method adopted in 2K digital broadcasting, the MPEG media transmission method (MMT method) adopted in 4K/8K digital broadcasting, or the like.
调谐器111对通过未图示的天线、有线TV用线缆接收到的广播波进行与数字广播的标准相应的处理，获取广播信号。The tuner 111 performs processing in accordance with the digital broadcasting standard on broadcast waves received through an antenna or cable for cable TV (not shown), and acquires a broadcast signal.
前处理部112对于广播信号，作为与数字广播的标准相应的处理，进行将其分离成各种数字数据流而输出的解复用处理、纠错码解码处理、解码加密的数据的加密解码处理等。The preprocessing unit 112 performs demultiplexing processing of separating and outputting the broadcast signal into various digital data streams, error correction code decoding processing, and encryption decoding processing of decoding encrypted data, as processing in accordance with the digital broadcast standard. Wait.
解码器部113对于数字数据流，进行与图像编码、声音编码、字符编码等对应的解码等，并作为广播节目数据(数字内容数据)，输出图像数据、声音数据、字符数据等。The decoder unit 113 performs decoding and the like corresponding to image encoding, audio encoding, character encoding, and the like with respect to the digital data stream, and outputs image data, audio data, character data, and the like as broadcast program data (digital content data).
输出控制部12对于从解码器部113、接口部18等输入的数字内容数据， 调整输出时刻、显示方法等，输出到显示部131、扬声器部132。另外，在耳机3连接于接收装置1的情况下，输出控制部12也可以控制为不将声音数据向扬声器部132输出。The output control unit 12 adjusts the output timing, display method, etc. of the digital content data input from the decoder unit 113 , the interface unit 18 and the like, and outputs the data to the display unit 131 and the speaker unit 132 . In addition, when the earphone 3 is connected to the receiving device 1 , the output control unit 12 may control so as not to output the audio data to the speaker unit 132 .
显示部131是显示图像、字符的例如显示器。显示部131将输出控制部12输出的图像数据、字符数据作为用户可识别的图像、字符等数字内容而输出。The display unit 131 is, for example, a display that displays images and characters. The display unit 131 outputs the image data and character data output by the output control unit 12 as digital content such as images and characters that can be recognized by the user.
扬声器部132是输出声音的扬声器等。扬声器部132将输出控制部12输出的数字内容数据作为声音等数字内容而输出。用户通过收看显示部131、扬声器部132输出的图像、字符、声音，从而收看广播信号、STB等提供的数字内容。The speaker unit 132 is a speaker or the like that outputs sound. The speaker unit 132 outputs the digital content data output from the output control unit 12 as digital content such as audio. The user views digital content provided by broadcast signals, STB, and the like by viewing images, characters, and sounds output from the display unit 131 and the speaker unit 132 .
信号控制部14从广播内容数据获取部11获取声音数据，并将声音信号输出到耳机3。另外，信号控制部14接收STB遥控器信号，将STB遥控器信号从耳机插口147输出到作为外部装置而连接的STB。The signal control unit 14 acquires audio data from the broadcast content data acquisition unit 11 and outputs the audio signal to the earphone 3 . In addition, the signal control unit 14 receives the STB remote control signal, and outputs the STB remote control signal from the earphone jack 147 to the STB connected as an external device.
控制微机141基于从耳机插口147输入的插入检测信号、电压检测信号等，生成并输出切换信号、使能信号(EN信号)。另外，控制微机141将从广播内容数据获取部11输入的声音数据输入到数字/模拟转换(D/A转换)，并将输出的声音信号(耳机信号)向耳机插口147输出、或者将STB遥控器信号向耳机插口147输出。The control microcomputer 141 generates and outputs a switching signal and an enable signal (EN signal) based on an insertion detection signal, a voltage detection signal, and the like input from the earphone jack 147 . In addition, the control microcomputer 141 inputs the audio data input from the broadcast content data acquisition unit 11 to digital/analog conversion (D/A conversion), and outputs the output audio signal (earphone signal) to the earphone jack 147, or remotely controls the STB. The device signal is output to the headphone jack 147.
耳机信号接收部1411接收从广播内容数据获取部11输入的声音数据(耳机信号)，利用D/A转换获得声音信号(耳机信号)并且输出。The headphone signal receiving unit 1411 receives audio data (headphone signal) input from the broadcast content data acquisition unit 11, obtains and outputs the audio signal (headphone signal) by D/A conversion.
检测信号接收部1412接收插入检测信号和上述电压检测信号。The detection signal receiving unit 1412 receives the insertion detection signal and the above-described voltage detection signal.
连接判断部1413基于插入检测信号和电压检测信号，判断在耳机插口147上连接着耳机3、还是连接着STB2。The connection determination unit 1413 determines whether the earphone 3 or the STB 2 is connected to the earphone jack 147 based on the insertion detection signal and the voltage detection signal.
确定部1414基于连接判断部1413的判断，确定将输出信号设为上述耳机信号、还是设为上述耳机信号以外的信号。控制微机141基于来自确定部1414的确定，生成切换信号、使能信号(EN信号)，通过控制SW142、SW143、SW144等，能够切换向耳机插口147的输出。The determination unit 1414 determines whether the output signal should be the aforementioned headphone signal or a signal other than the aforementioned headphone signal, based on the determination of the connection determination unit 1413 . The control microcomputer 141 generates a switching signal and an enable signal (EN signal) based on the determination from the determination unit 1414, and can switch the output to the earphone jack 147 by controlling SW142, SW143, SW144, and the like.
SW142是基于从控制微机141输入的切换信号，切换耳机信号和STB遥控器信号的输出的开关。The SW 142 is a switch for switching the output of the headphone signal and the STB remote control signal based on the switching signal input from the control microcomputer 141 .
SW143是基于从控制微机141输入的EN信号，切换向耳机插口147的输出的ON(接通)或OFF(断开)的开关。The SW 143 is a switch for switching ON (on) or OFF (off) of the output to the earphone jack 147 based on the EN signal input from the control microcomputer 141 .
SW144是基于从转换器(inverter)145输入的信号，切换连接的ON或OFF的开关。The SW 144 is a switch that switches ON or OFF of the connection based on a signal input from an inverter 145 .
转换器145是使输入信号的逻辑反转并输出的转换器。The converter 145 is a converter that inverts the logic of the input signal and outputs it.
电阻元件146是对电压检测信号施加偏置的高电阻元件。The resistance element 146 is a high resistance element that biases the voltage detection signal.
耳机插口147包含用于连接来自耳机3、STB2的插头的插口，进行各种数据、信号的输入输出。耳机插口147输出插入检测信号、电压检测信号。插入检测信号是表示在耳机插口147上是否插入了插头的信号，具体而言，例如可以将插入检测信号上拉至3.3V，在未插入时设为Hi，在插入时设为Low。电压检测信号是外部装置的插头的电压，是根据偏置负载与外部装置之间的阻抗的关系而确定电压的信号。在未连接插头的情况下，插入检测信号为高信号(Hi信号)，电压检测信号为高阻抗信号(Hi－Z)。若连接了插头，则插入检测信号成为低信号(Low信号)，电压检测信号成为经由连接着的插头而连接着的外部装置的电压。具体而言，在作为外部装置连接着耳机3的情况下，电压检测信号成为低信号(Low信号)，另外，在作为外部装置连接着STB2的情况下，电压检测信号成为高阻抗信号(Hi－Z)。The earphone jack 147 includes a jack for connecting the plugs from the earphone 3 and the STB 2 , and performs input and output of various data and signals. The earphone jack 147 outputs an insertion detection signal and a voltage detection signal. The insertion detection signal is a signal indicating whether or not a plug is inserted into the earphone jack 147. Specifically, for example, the insertion detection signal may be pulled up to 3.3V, set to Hi when not inserted, and set to Low when inserted. The voltage detection signal is the voltage of the plug of the external device, and is a signal whose voltage is determined based on the relationship between the impedance of the bias load and the external device. When the plug is not connected, the insertion detection signal is a high signal (Hi signal), and the voltage detection signal is a high impedance signal (Hi-Z). When the plug is connected, the insertion detection signal becomes a low signal (Low signal), and the voltage detection signal becomes the voltage of the external device connected via the connected plug. Specifically, when the earphone 3 is connected as an external device, the voltage detection signal becomes a low signal (Low signal), and when the STB 2 is connected as an external device, the voltage detection signal becomes a high impedance signal (Hi- Z).
RMT受光部15接收红外线信号等来自遥控器10、遥控器20的遥控器信号。RMT受光部15对接收到的红外线信号等进行解调，获得遥控器信号。The RMT light receiving unit 15 receives remote control signals from the remote control 10 and the remote control 20 such as infrared signals. The RMT light receiving unit 15 demodulates the received infrared signal and the like to obtain a remote control signal.
信号判定部16对RMT受光部15接收到的遥控器信号进行解码等，并判定获得的遥控器信号是TV遥控器信号还是STB遥控器信号，基于判定结果将遥控器信号向外部输出。信号判定部16对遥控器信号的判定只要判定是否是TV遥控器信号即可，如果接收到的遥控器信号是TV遥控器信号，则接收装置1(例如控制部17)继续进行基于TV遥控器信号的控制。另一方面，如果接收到的遥控器信号不是TV遥控器信号，则将接收到的遥控器信号输出到 信号控制部14。即，不论特别地设置信号判定部16还是不设置，均与通常的基于TV遥控器信号的对接收装置1的控制完全无关。另外，如果能够通过接收装置1、STB2各自的遥控器信号的解读单元(例如接收装置1的控制部17、STB2的控制部26)来进行TV遥控器信号、STB遥控器信号的判断，则也可以不设置信号判定部16，而将遥控器信号始终输入到信号控制部14、控制部17这双方。在本实施方式中，追加用于将接收到的遥控器信号输出到信号控制部14的传输路径。The signal determination unit 16 decodes the remote control signal received by the RMT light receiving unit 15, determines whether the obtained remote control signal is a TV remote control signal or an STB remote control signal, and outputs the remote control signal to the outside based on the determination result. The signal determination unit 16 only needs to determine whether the remote control signal is a TV remote control signal. If the received remote control signal is a TV remote control signal, the receiving device 1 (for example, the control unit 17 ) continues to perform the TV remote control signal. control of the signal. On the other hand, if the received remote control signal is not a TV remote control signal, the received remote control signal is output to the signal control unit 14. That is, whether the signal determination unit 16 is specially provided or not is completely irrelevant to the control of the reception apparatus 1 by the normal TV remote control signal. In addition, if the TV remote control signal and the STB remote control signal can be determined by interpreting the remote control signals of the receiving device 1 and STB2 (for example, the control unit 17 of the receiving device 1 and the control unit 26 of the STB2) The signal determination unit 16 may not be provided, and the remote controller signal may always be input to both the signal control unit 14 and the control unit 17 . In the present embodiment, a transmission path for outputting the received remote control signal to the signal control unit 14 is added.
控制部17控制接收装置1的各功能。具体而言，控制部17基于从信号判定部输入的TV遥控器信号来控制接收装置1的各功能。例如，在用户从遥控器10指定了是要收看基于广播信号的广播节目、还是要收看来自STB2的内容的情况下，控制部17经由RMT受光部15接收来自遥控器10的控制信号，控制接收装置1的功能，使得进行用户指定了的动作。此外，在图2中，在与控制部17之间没有特别连线的功能模块之间，也可以进行数据的交互、控制。The control unit 17 controls each function of the reception device 1 . Specifically, the control unit 17 controls each function of the reception device 1 based on the TV remote control signal input from the signal determination unit. For example, when the user designates from the remote controller 10 whether to watch the broadcast program based on the broadcast signal or the content from the STB 2 , the control unit 17 receives the control signal from the remote controller 10 via the RMT light receiving unit 15 and controls the reception The function of the device 1 is to perform an action designated by the user. In addition, in FIG. 2, it is also possible to perform data exchange and control between functional modules that are not particularly connected to the control unit 17.
接口部18是与外部装置之间进行数字数据收发的接口。具体而言，例如，接口部18也可以是高清多媒体接口即HDMI(注册商标)，将从STB接收的数字内容数据等向广播内容数据获取部11、输出控制部12输出。The interface unit 18 is an interface for transmitting and receiving digital data with an external device. Specifically, for example, the interface unit 18 may be HDMI (registered trademark), which is a high-definition multimedia interface, and outputs digital content data and the like received from the STB to the broadcast content data acquisition unit 11 and the output control unit 12 .
图3是示出实施方式的STB的构成例的功能模块图。3 is a functional block diagram showing a configuration example of an STB according to the embodiment.
调谐器21对于通过未图示的天线、有线TV用线缆接收到的广播波，执行与数字广播的标准相应的处理，获取广播信号。The tuner 21 executes processing according to the standard of digital broadcasting with respect to broadcast waves received through an antenna or cable for cable TV (not shown), and acquires a broadcast signal.
内容数据获取部22对于调谐器21输出的广播信号进行解复用处理、纠错码解码处理、将加密的数据解码的加密解码处理、与图像编码、声音编码、字符编码等对应的解码等，从而获取数字内容数据。另外，内容数据获取部22从网络4获取数字内容数据。The content data acquisition unit 22 performs demultiplexing processing, error correction code decoding processing, encryption decoding processing for decoding encrypted data, decoding corresponding to image encoding, audio encoding, character encoding, and the like with respect to the broadcast signal output from the tuner 21, Thereby, digital content data is acquired. In addition, the content data acquisition unit 22 acquires digital content data from the network 4 .
线路输入部23与外部装置(在本实施方式中为接收装置1)进行信号的交互。在本实施方式中，从接收装置1通过STB线缆接收STB遥控器信号。线路输入部23将接收到的STB遥控器信号输出到接口部24，在接口部24中 对STB遥控器信号进行解码等。The line input unit 23 exchanges signals with an external device (the receiving device 1 in this embodiment). In the present embodiment, the STB remote controller signal is received from the receiving device 1 through the STB cable. The line input unit 23 outputs the received STB remote control signal to the interface unit 24, and the interface unit 24 decodes the STB remote control signal and the like.
接口部24是连接于网络4并且用于与网络4上的装置等进行数据通信的接口，具备例如TCP/IP、UDP/IP这样的协议。STB2能够通过接口部24来获取网络4上的数字内容数据。另外，接口部24具备HDMI(注册商标)等用于输入输出数字数据的接口，能够向接收装置1输出数字内容数据。The interface unit 24 is connected to the network 4 and is an interface for performing data communication with devices and the like on the network 4 , and includes protocols such as TCP/IP and UDP/IP, for example. The STB 2 can acquire digital content data on the network 4 through the interface unit 24 . In addition, the interface unit 24 includes an interface for inputting and outputting digital data such as HDMI (registered trademark), and can output digital content data to the receiving device 1 .
另外，接口部24对从RMT受光部25输入的遥控器信号进行解码等，将基于遥控器信号的遥控器命令数据输出到控制部。In addition, the interface unit 24 decodes the remote control signal input from the RMT light receiving unit 25, etc., and outputs remote control command data based on the remote control signal to the control unit.
RMT受光部25是用于接收遥控器20输出的红外线信号等遥控器信号的接口。RMT受光部25对接收到的红外线信号等进行解调，从而获取遥控器信号。RMT受光部25将接收到的遥控器信号向控制部17输出。The RMT light receiving unit 25 is an interface for receiving a remote control signal such as an infrared signal output from the remote control 20 . The RMT light receiving unit 25 demodulates the received infrared signal and the like, and acquires the remote control signal. The RMT light receiving unit 25 outputs the received remote control signal to the control unit 17 .
控制部26也可以包含CPU的功能，若RMT受光部25接收到来自遥控器20的控制信号，则从控制信号取出控制命令，并基于取出的控制命令来控制STB2内的各功能。例如，假设用户为了利用STB2提供的VOD服务来收看想要观看的节目而从遥控器20指定了节目。遥控器20输出遥控器信号，控制部26经由RMT受光部25接收遥控器信号。控制部26从接收到的遥控器信号获取指定节目的信息，根据指定节目的提供源，控制调谐器部21、接口部24，从而获取指定节目的数字内容数据。控制部26使获取到的数字内容数据从接口部24输出，并发送到接收装置1。由此，用户能够从接收装置1的显示器来收看指定节目。The control unit 26 may include the function of a CPU, and when the RMT light receiving unit 25 receives a control signal from the remote controller 20, it extracts a control command from the control signal, and controls each function in the STB2 based on the extracted control command. For example, it is assumed that the user designates a program from the remote controller 20 in order to view a desired program using the VOD service provided by the STB2. The remote controller 20 outputs a remote controller signal, and the control unit 26 receives the remote controller signal via the RMT light receiving unit 25 . The control unit 26 acquires the information of the specified program from the received remote control signal, and controls the tuner unit 21 and the interface unit 24 according to the source of the specified program to acquire digital content data of the specified program. The control unit 26 outputs the acquired digital content data from the interface unit 24 and transmits it to the receiving device 1 . Thereby, the user can watch the designated program from the display of the receiving apparatus 1 .
如上所述，接收装置1、STB2分别具备专用的遥控器作为遥控器10、遥控器20。然而，若STB2设置在从电视机的收看者看不到的场所，则STB2无法接收遥控器20输出的遥控器信号。例如，在酒店等中，很多情况下STB设置在从旅客看不到的场所，有时STB无法接收STB遥控器信号。因此，通常，希望在设置于从旅客可以看到的场所的电视接收装置(相当于接收装置1)的尤其是显示器上，设置STB用的专用端子。然而，根据电视机组件，不仅因构造制约而无法配置端子，还有电视接收装置的所有者也不一定使用STB，因此，从费用的方面考虑也不希望在电视接收装置上设置STB用的专用端子。 在本实施方式中，使用在电视接收装置中通常配备的遥控器用的端子(相当于RMT受光部15)，接收STB遥控器信号。即，在本实施方式中，将电视接收装置1的RMT受光部15在遥控器10、遥控器20中兼用。另外，在本实施方式中，将电视接收装置的耳机插口147用于STB2的连接。通常，在耳机插口147上连接耳机3，但是，在酒店等中，有时耳机3不被使用，通过连接STB2线缆，从而能够有效地充分利用。As described above, the reception apparatus 1 and the STB 2 are provided with dedicated remote controllers as the remote controller 10 and the remote controller 20, respectively. However, if the STB 2 is installed in a place that cannot be seen from the viewer of the television, the STB 2 cannot receive the remote control signal output from the remote control 20 . For example, in a hotel or the like, the STB is often installed in a place that cannot be seen from passengers, and the STB may not be able to receive the STB remote control signal. Therefore, in general, it is desirable to provide a dedicated terminal for STB on a television receiver (corresponding to the receiver 1 ) installed in a place where it can be seen from a traveler, particularly on a display. However, according to the TV set, not only the terminals cannot be arranged due to structural constraints, but also the owner of the TV receiver does not necessarily use the STB. Therefore, it is not desirable to install a dedicated STB on the TV receiver from the viewpoint of cost. terminal. In the present embodiment, the STB remote control signal is received by using a remote control terminal (corresponding to the RMT light receiving unit 15 ) that is usually provided in a television receiver. That is, in the present embodiment, the RMT light receiving unit 15 of the television receiver 1 is used for both the remote controller 10 and the remote controller 20 . In addition, in this embodiment, the earphone jack 147 of the television receiver is used for the connection of the STB2. Usually, the earphone 3 is connected to the earphone jack 147. However, in a hotel or the like, the earphone 3 may not be used. By connecting the STB2 cable, the earphone 3 can be effectively used.
在本实施方式中，在接收装置的耳机插口147上连接来自STB2的STB线缆，通过STB线缆来控制STB2。具体而言，使接收装置1的RMT受光部15接收遥控器20输出的STB遥控器信号，从接收装置1通过STB线缆将STB遥控器信号输出到STB2。STB2进行基于接收到的STB遥控器信号的动作。In this embodiment, the STB cable from the STB2 is connected to the earphone jack 147 of the receiving device, and the STB2 is controlled through the STB cable. Specifically, the RMT light receiving unit 15 of the receiving device 1 is caused to receive the STB remote control signal output from the remote control 20 , and the STB remote control signal is output from the receiving device 1 to the STB 2 through the STB cable. The STB 2 performs an operation based on the received STB remote control signal.
图4是示出在实施方式的接收装置中在插口上连接了插头之后的处理动作例的流程图。4 is a flowchart showing an example of processing operations after a plug is connected to a socket in the receiving apparatus according to the embodiment.
假设在电视接收装置(接收装置1)的耳机插口147上什么都未连接。此时，SW143被设定为作为未连接状态的“OFF”，SW144被设定为作为连接状态的“ON”，电阻元件146成为有效，因此，从耳机插口147输出的插入检测信号成为高阻抗的信号。控制微机141根据插入检测信号为高阻抗的信号，判断为在耳机插口147什么都未连接，将作为2值(Hi/Low)的信号的EN信号设定为例如Low，并且进行输出(步骤S101的否，S102)。SW143若接收到EN信号，则将各个开关的状态设为OFF。另外，EN信号在SW145中被逻辑反转后的信号被输入到SW144。即，Hi信号被输入到SW144，SW144将开关设为ON(步骤S103)。因此，在耳机插口147上未连接的情况下，EN信号为Low，SW143为OFF，SW144为ON。Assume that nothing is connected to the headphone jack 147 of the television receiver (receiver 1). At this time, SW143 is set to "OFF" which is a disconnected state, SW144 is set to "ON" which is a connected state, and the resistive element 146 is enabled, so that the insertion detection signal output from the earphone jack 147 becomes a high impedance signal of. The control microcomputer 141 determines that nothing is connected to the headphone jack 147 based on the high-impedance signal of the insertion detection signal, sets the EN signal, which is a binary value (Hi/Low) signal, to, for example, Low, and outputs it (step S101 ). No, S102). When the SW143 receives the EN signal, it turns off the state of each switch. In addition, a signal obtained by logical inversion of the EN signal in SW145 is input to SW144. That is, the Hi signal is input to SW144, and SW144 turns on the switch (step S103). Therefore, when the earphone jack 147 is not connected, the EN signal is Low, the SW143 is OFF, and the SW144 is ON.
图5是示出实施方式的接收装置中的插口与插头的连接状态和电路的状态之间的关系的图，按每一行示出各阶段(phase)中的各种信号的状态、开关的状态。5 is a diagram showing the relationship between the connection state of the socket and the plug and the state of the circuit in the receiving device according to the embodiment, and shows the states of various signals and the states of switches in each phase in each row .
No.1示出在耳机插口147上什么都未连接的情况的状态(图4的步骤S103中的状态)。在No.1中的未连接的阶段(phase)中，示出了插入检测信号、 电压检测信号均为高信号(H)，此时的EN信号为Low(L)，SW143、SW144的状态分别为OFF、ON。切换信号、SW142为表示未定值(Not Applicable)的“N/A”。No. 1 shows a state in which nothing is connected to the earphone jack 147 (state in step S103 of FIG. 4 ). In the unconnected phase (phase) in No. 1, the insertion detection signal and the voltage detection signal are both high signals (H), the EN signal at this time is Low (L), and the states of SW143 and SW144 are respectively to OFF and ON. The switching signal, SW142, is "N/A" indicating an undetermined value (Not Applicable).
回到图4，在耳机插口147上连接了耳机3或者STB线缆的插头的情况下，插入检测信号变成低信号(Low)，控制微机141根据插入检测信号为低信号而判断为在耳机插口147上连接了耳机3或者STB线缆的任一者(步骤S101中的是)。控制微机141确认电压检测信号，在电压检测信号为高阻抗信号的情况下，判断为在耳机插口147上连接了STB线缆(步骤S104的Hi的情况，S105)。在该判断中，利用了STB的输入为高阻抗信号的现象。Returning to FIG. 4 , when the earphone 3 or the plug of the STB cable is connected to the earphone jack 147, the insertion detection signal becomes a low signal (Low), and the control microcomputer 141 determines that the earphone is connected to the earphone according to the low signal of the insertion detection signal. Either the earphone 3 or the STB cable is connected to the jack 147 (Yes in step S101). The control microcomputer 141 checks the voltage detection signal, and when the voltage detection signal is a high-impedance signal, determines that the STB cable is connected to the earphone jack 147 (in the case of Hi in step S104, S105). In this determination, the phenomenon that the input of the STB is a high-impedance signal is used.
控制微机141将切换信号设定为高信号(Hi)(步骤S106)。若高信号(Hi)的切换信号被输入到SW142，则SW142将开关连接到遥控器信号的传输路径。接下来，控制微机141将EN信号设定为高信号(Hi)(步骤S107)。SW143若接收到EN信号，则将开关设为连接状态的ON。另外，EN信号在SW145中被逻辑反转后的信号被输入到SW144。即，Low信号被输入到SW144，SW144将开关设为OFF(步骤S108)。因此，在耳机插口147上连接有STB线缆的情况下，EN信号成为Hi，切换信号成为Hi，SW143成为ON，SW144成为OFF。通过将SW144设为OFF而将电阻元件146设为无效，并使电压检测信号成为“N/A”，从而消除从耳机插口147输出的对STB遥控器信号的影响。图5的No.2示出了在耳机插口147上连接有STB线缆的情况下的状态。No.2中的电压检测信号的“N/A”表示电压检测信号为未定值，SW142的“RC”表示SW142连接于遥控器信号的传输路径。通过上述的步骤，接收装置1的RMT受光部15能够接收STB遥控器信号。The control microcomputer 141 sets the switching signal to a high signal (Hi) (step S106). If the switching signal of the high signal (Hi) is input to the SW142, the SW142 connects the switch to the transmission path of the remote control signal. Next, the control microcomputer 141 sets the EN signal to a high signal (Hi) (step S107). When the SW143 receives the EN signal, it turns the switch ON in the connected state. In addition, a signal obtained by logical inversion of the EN signal in SW145 is input to SW144. That is, the Low signal is input to SW144, and SW144 turns off the switch (step S108). Therefore, when the STB cable is connected to the earphone jack 147, the EN signal becomes Hi, the switching signal becomes Hi, the SW143 becomes ON, and the SW144 becomes OFF. The resistance element 146 is disabled by turning OFF the SW 144, and the voltage detection signal becomes "N/A", thereby eliminating the influence on the STB remote control signal output from the earphone jack 147. No. 2 of FIG. 5 shows a state in which the STB cable is connected to the earphone jack 147 . "N/A" of the voltage detection signal in No. 2 indicates that the voltage detection signal is an undetermined value, and "RC" of SW142 indicates that SW142 is connected to the transmission path of the remote control signal. Through the above steps, the RMT light receiving unit 15 of the receiving device 1 can receive the STB remote control signal.
另一方面，控制微机141确认电压检测信号，在电压检测信号为低信号(Low)的情况下，判断为在耳机插口147上连接了耳机(步骤S104的Low的情况，S109)。在该判断中，相对于STB的输入为高阻抗信号的现象，利用了耳机的阻抗比STB更低的现象。控制微机141将切换信号设定为低信号(Low)(步骤S110)。若低信号(Low)的切换信号被输入到SW142，则 SW142将开关连接到遥控器信号的传输路径。接下来，控制微机141将EN信号设定为高信号(Hi)(步骤S111)。SW143若接收到EN信号，则将开关设为连接状态的ON。另外，EN信号在SW145中被逻辑反转后的信号被输入到SW144。即，Low信号被输入到SW144，SW144将开关设为OFF(步骤S108)。因此，在耳机插口147上连接了耳机3的情况下，EN信号成为Hi，切换信号成为Low，SW143成为ON，SW144成为OFF。通过将SW144设为OFF而将电阻元件146设为无效，并使电压检测信号成为“N/A”，从而消除从耳机插口147输出的对耳机信号的影响。图5的No.3示出了在耳机插口147上连接了耳机3的情况下的状态。No.3中的电压检测信号的“N/A”表示电压检测信号为未定值，SW142的“HP”表示SW142连接于耳机(Head Phone)信号的传输路径。通过上述S101、S104、S109至S111的步骤，连接于接收装置1的耳机3成为能够使用。On the other hand, the control microcomputer 141 checks the voltage detection signal, and when the voltage detection signal is a low signal (Low), determines that an earphone is connected to the earphone jack 147 (Low in step S104, S109). In this determination, the phenomenon that the impedance of the earphone is lower than that of the STB is used for the phenomenon that the input of the STB is a high-impedance signal. The control microcomputer 141 sets the switching signal to a low signal (Low) (step S110). If the switching signal of the low signal (Low) is input to the SW142, the SW142 connects the switch to the transmission path of the remote control signal. Next, the control microcomputer 141 sets the EN signal to a high signal (Hi) (step S111). When the SW143 receives the EN signal, it turns the switch ON in the connected state. In addition, a signal obtained by logical inversion of the EN signal in SW145 is input to SW144. That is, the Low signal is input to SW144, and SW144 turns off the switch (step S108). Therefore, when the earphone 3 is connected to the earphone jack 147, the EN signal becomes Hi, the switching signal becomes Low, the SW143 is turned on, and the SW144 is turned off. The resistance element 146 is disabled by turning OFF the SW 144 and the voltage detection signal becomes "N/A", thereby eliminating the influence on the headphone signal output from the headphone jack 147 . No. 3 of FIG. 5 shows a state in which the earphone 3 is connected to the earphone jack 147 . "N/A" of the voltage detection signal in No. 3 indicates that the voltage detection signal is undetermined, and "HP" of SW142 indicates that SW142 is connected to the transmission path of the headphone signal. Through the steps of S101, S104, S109 to S111 described above, the earphone 3 connected to the receiving device 1 becomes usable.
图6是示出实施方式的接收装置从遥控器接收到信号时的处理动作例的流程图。6 is a flowchart showing an example of processing operations when the reception device according to the embodiment receives a signal from the remote controller.
接收装置1的RMT受光部15接收遥控器信号(步骤S201)。若接收到的遥控器信号被输入到信号判定部16，则信号判定部16判定遥控器信号是来自遥控器10的信号(TV遥控器信号)还是来自遥控器20的信号(STB遥控器信号)(步骤S202)。信号判定部16在判定为遥控器信号是TV遥控器信号的情况下，将接收到的遥控器信号向控制部17输出(步骤S203)。控制部17基于接收到的遥控器信号来控制接收装置1的各种功能(步骤S204)。The RMT light receiving unit 15 of the receiving device 1 receives the remote controller signal (step S201). When the received remote control signal is input to the signal determination unit 16, the signal determination unit 16 determines whether the remote control signal is a signal from the remote control 10 (TV remote control signal) or a signal from the remote control 20 (STB remote control signal). (step S202). When the signal determination unit 16 determines that the remote control signal is a TV remote control signal, it outputs the received remote control signal to the control unit 17 (step S203). The control unit 17 controls various functions of the reception device 1 based on the received remote control signal (step S204).
信号判定部16在判定为遥控器信号是STB遥控器信号的情况下，将接收到的遥控器信号向信号控制部14输出(步骤S205)。在信号控制部14中，根据利用图4的处理识别出的耳机插口147的状态，处理信号(步骤S206)。在耳机插口147上连接着STB线缆的情况下，接收到的遥控器信号被输出到耳机插口147，接收到的遥控器信号被从耳机插口147通过STB线缆向STB发送(步骤S207)。在耳机插口147上连接着耳机3的情况下，由于利用SW142断开了遥控器信号的传输路径，所以例如控制微机141将接收到的遥控器信 号废弃(步骤S208)。在耳机插口147为未连接的状态的情况下，由于至少利用SW143断开了遥控器信号的传输路径，所以接收到的遥控器信号被废弃(步骤S209)。When the signal determination unit 16 determines that the remote control signal is the STB remote control signal, it outputs the received remote control signal to the signal control unit 14 (step S205). In the signal control unit 14, the signal is processed according to the state of the earphone jack 147 recognized by the process of FIG. 4 (step S206). When the STB cable is connected to the earphone jack 147, the received remote control signal is output to the earphone jack 147, and the received remote control signal is transmitted from the earphone jack 147 to the STB through the STB cable (step S207). When the earphone 3 is connected to the earphone jack 147, since the transmission path of the remote control signal is disconnected by SW142, for example, the control microcomputer 141 discards the received remote control signal (step S208). When the earphone jack 147 is not connected, since the transmission path of the remote control signal is disconnected by at least SW143, the received remote control signal is discarded (step S209).
通过以上的步骤，接收装置1的遥控器的受光端子即RMT受光部15接收STB遥控器信号，并通过与耳机插口147连接的STB线缆将STB遥控器信号输出到STB2，由此，能够控制STB2。另外，通过步骤S208，具有如下效果：即使在用户正使用耳机3听声音时RMT受光部15接收到遥控器信号的情况下，也避免遥控器信号相对于耳机3输出的声音成为噪音。Through the above steps, the RMT light-receiving unit 15, which is the light-receiving terminal of the remote controller of the receiving device 1, receives the STB remote control signal, and outputs the STB remote control signal to the STB2 through the STB cable connected to the earphone jack 147, thereby enabling control STB2. In addition, step S208 has an effect of preventing the remote control signal from becoming noise with respect to the sound output by the earphone 3 even when the RMT light receiving unit 15 receives the remote control signal while the user is listening to the sound with the earphone 3 .
图7是示出实施方式的接收装置将声音信号输出到耳机时的处理动作例的流程图。FIG. 7 is a flowchart showing an example of processing operations when the reception device according to the embodiment outputs an audio signal to the earphone.
若接收装置1的广播内容数据获取部11接收广播信号，并输出广播内容，则广播内容中的声音信号数据被输入到信号控制部14(步骤S301)。在信号控制部14中，根据利用图4的处理识别出的耳机插口147的状态，进行信号的处理(步骤S302)。在耳机插口147上连接着STB线缆的情况下，由于利用SW142断开了耳机信号的传输路径，所以控制微机141将接收到的耳机信号废弃(步骤S303)。在耳机插口147上连接着耳机3的情况下，控制微机141接收到的耳机信号被输出到耳机插口147，从耳机插口147输出到耳机3，将声音提供给用户(步骤S304)。在耳机插口147为未连接的状态的情况下，由于至少利用SW143断开了耳机信号的传输路径，所以控制微机141将接收到的耳机信号废弃(步骤S305)。When the broadcast content data acquisition unit 11 of the receiving apparatus 1 receives the broadcast signal and outputs the broadcast content, the audio signal data in the broadcast content is input to the signal control unit 14 (step S301). The signal control unit 14 performs signal processing based on the state of the earphone jack 147 recognized by the process of FIG. 4 (step S302). When the STB cable is connected to the earphone jack 147, since the transmission path of the earphone signal is disconnected by the SW142, the control microcomputer 141 discards the received earphone signal (step S303). When the earphone 3 is connected to the earphone jack 147, the earphone signal received by the control microcomputer 141 is output to the earphone jack 147, from the earphone jack 147 to the earphone 3, and provides sound to the user (step S304). When the earphone jack 147 is not connected, the control microcomputer 141 discards the received earphone signal since the transmission path of the earphone signal is disconnected by at least SW143 (step S305).
通过以上的步骤，即使在设定为能够在耳机插口147上连接来自STB的插头的情况下，用户也能够如以往那样从耳机3听接收装置1接收到的声音信号数据。Through the above steps, even when the earphone jack 147 is set so that the plug from the STB can be connected, the user can listen to the audio signal data received by the receiving device 1 from the earphone 3 as in the past.
通过以上的步骤，能够使用接收装置1的遥控器端子来进行作为外部装置的STB的控制。若仅将STB用遥控器(相当于遥控器20)的红外线受光部(相当于RMT受光部25)从STB分离地设置，则也有外表的问题，因此不可取。然而，根据本实施方式，不采取那样的方法，并且不必在接收装置1 上设置STB用遥控器的专用端子，而能够通过利用接收装置1的红外线受光部(相当于RMT受光部15)来进行STB的控制。Through the above steps, it is possible to control the STB as an external device using the remote controller terminal of the receiving device 1 . If only the infrared light receiving part (equivalent to the RMT light receiving part 25 ) of the remote controller for STB (equivalent to the remote control 20 ) is provided separately from the STB, there is also a problem of appearance, which is not preferable. However, according to the present embodiment, such a method is not adopted, and it is not necessary to provide a dedicated terminal for the remote controller for STB on the receiving device 1, but it can be performed by using the infrared light receiving part (corresponding to the RMT light receiving part 15) of the receiving device 1 Control of STB.
(变形例)(Variation)
在前面的实施方式中，信号控制部14利用STB与耳机的阻抗差来判别在耳机插口147上连接着哪个，从而确定了向耳机插口147输入耳机信号还是输入STB遥控器信号。如果同样地利用阻抗差，则能够充分利用其它各种各样的信号。在本变形例中，示出如下情况的例子：代替STB，使用接收串行日志(Serial log)输出的设备(称为串行日志设备)，并确定向耳机插口147输入耳机信号还是输入串行日志的信号。此外，串行日志设备也可以是个人计算机等。In the previous embodiment, the signal control unit 14 uses the impedance difference between the STB and the earphone to determine which one is connected to the earphone jack 147, thereby determining whether to input the earphone signal or the STB remote control signal to the earphone jack 147. If the impedance difference is similarly utilized, other various signals can be fully utilized. In this modification, an example is shown in which a device that receives serial log (Serial log) output (referred to as a serial log device) is used instead of the STB, and it is determined whether to input a headphone signal to the headphone jack 147 or to input a serial log log signal. Also, the serial log device may be a personal computer or the like.
因为串行日志设备与STB同样地为高阻抗(Hi－Z)输入，所以通过代替STB而将来自串行日志设备的插头连接于耳机插口147，从而与前面的实施方式的方法同样地，能够从耳机插口147向串行日志设备输出串行日志。在本变形例中，通过图4的处理流程，能够形成与图5所示的各种信号、开关的状态同样的状态(在各图中，将STB置换成串行日志设备)。更具体而言，信号控制部14利用串行日志设备与耳机的阻抗差导致的电压检测信号的差异来判别在耳机插口147上连接着哪个，并生成切换信号、EN信号，由此，形成与图5所示的各种信号、开关的状态同样的状态。Since the serial logging device has a high impedance (Hi-Z) input like the STB, by connecting the plug from the serial logging device to the headphone jack 147 instead of the STB, it is possible to, similarly to the method of the previous embodiment, The serial log is output from the headphone jack 147 to the serial log device. In the present modification, the same state as the states of various signals and switches shown in FIG. 5 can be established by the processing flow of FIG. 4 (in each figure, STB is replaced by a serial log device). More specifically, the signal control unit 14 discriminates which is connected to the earphone jack 147 by using the difference in the voltage detection signal due to the difference in impedance between the serial logging device and the earphone, and generates a switching signal and an EN signal, thereby forming a The states of various signals and switches shown in FIG. 5 are the same.
图8是示出变形例的接收装置将串行日志输出到串行日志设备时的处理动作例的流程图。FIG. 8 is a flowchart showing an example of processing operations when the receiving apparatus according to the modified example outputs a serial log to a serial log device.
若接收装置1的未图示的串行日志输出部生成串行日志并输出，则串行日志被输入到信号控制部14(步骤S401)。在信号控制部14中，根据利用图4的处理识别出的耳机插口147的状态，进行信号的处理(步骤S402)。在耳机插口147上连接着串行日志设备的情况下，控制微机141接收到的串行日志被输出到耳机插口147，并从耳机插口147输出到串行日志设备(步骤S403)。在耳机插口147上连接着耳机3的情况下，由于利用SW142断开了串行日志的传输路径，所以控制微机141将接收到的串行日志废弃(步骤S404)。在耳机插口147为未连接的状态的情况下，由于至少利用SW143断 开了串行日志的传输路径，所以控制微机141将接收到的串行日志废弃(步骤S405)。When a serial log output unit (not shown) of the receiving apparatus 1 generates and outputs a serial log, the serial log is input to the signal control unit 14 (step S401 ). The signal control unit 14 performs signal processing based on the state of the earphone jack 147 recognized by the process of FIG. 4 (step S402). When the serial log device is connected to the headphone jack 147, the serial log received by the control microcomputer 141 is output to the headphone jack 147 and from the headphone jack 147 to the serial log device (step S403). When the earphone 3 is connected to the earphone jack 147, since the transmission path of the serial log is disconnected by the SW142, the control microcomputer 141 discards the received serial log (step S404). When the earphone jack 147 is not connected, since the transmission path of the serial log is disconnected by at least SW143, the control microcomputer 141 discards the received serial log (step S405).
通过以上的步骤，接收装置1能够将串行日志从耳机插口147输出到串行日志设备。Through the above steps, the receiving apparatus 1 can output the serial log from the earphone jack 147 to the serial log device.
根据以上所述的至少1个实施方式，能够提供利用耳机端子来控制外部装置的控制电路、接收装置及控制方法。According to at least one of the above-described embodiments, it is possible to provide a control circuit, a reception device, and a control method for controlling an external device using an earphone terminal.
此外，附图所示的解析画面等上显示的条件参数、对它们的选择分支、值、评价指标等的名称、定义、种类等在本实施方式中是作为一个例子而示出的，并不限定于本实施方式所示的内容。In addition, the names, definitions, types, etc. of the conditional parameters displayed on the analysis screen and the like shown in the drawings, their selection branches, values, evaluation indexes, etc. are shown as examples in the present embodiment, and are not It is limited to the content shown in this embodiment.
以上说明了本申请的几个实施方式，但是，这些实施方式是作为例子而出示的，并不意图限定申请的范围。这些新的实施方式能够以其它各种各样的形态来实施，在不脱离本申请的主旨的范围内能够进行各种省略、置换、变更。这些实施方式、其变形包含在本申请的范围、主旨中，并且包含在权利要求书所记载的本申请及与其等同的范围中。进一步，另外，在技术方案的各构成要素中，即使在将构成要素分割地表现的情况、或者将多个合并地表现的情况、或者将它们组合地表现的情况下，也属于本申请的范畴。另外，也可以将多个实施方式组合，通过该组合构成的实施例也属于申请的范畴。Several embodiments of the present application have been described above, but these embodiments are shown as examples and are not intended to limit the scope of the application. These new embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the present application. These embodiments and modifications thereof are included in the scope and gist of the present application, and are also included in the present application described in the claims and the scope equivalent thereto. Furthermore, among the constituent elements of the technical aspect, even if the constituent elements are expressed in divisions, a plurality of constituent elements are expressed in combination, or they are expressed in combination, they also belong to the scope of the present application. . In addition, a plurality of embodiments may be combined, and the examples constituted by the combination also belong to the scope of the application.
另外，附图为了使得说明更清楚，而有的情况下与实际的形态相比，对于各部的宽度、厚度、形状等进行示意性地表示。在框图中，对于未连线的框之间、或者即使连线也为示出箭头的方向，有的情况下也进行数据、信号的交互。流程图所示的处理也可以通过硬件(IC芯片等)或者软件(程序等)或者硬件与软件的组合来实现。另外，在将技术方案表现为控制逻辑的情况下、在表现为包含使计算机执行的指令的程序的情况下、以及在表现为记载有上述指令的计算机可读取的存储介质的情况下，也是应用本申请的装置。另外，对于使用的名称、用语也没有限定，即使其它表现，只要实质上为同一内容、相同主旨，则也包含在本申请中。In addition, in order to make description clearer, in the drawings, the width, thickness, shape, etc. of each part are schematically shown in some cases compared with the actual form. In the block diagram, data and signals may be exchanged between unconnected blocks, or in the direction of arrows even if they are connected. The processing shown in the flowchart can also be realized by hardware (IC chip etc.) or software (program etc.) or a combination of hardware and software. In addition, when the technical solution is expressed as a control logic, when expressed as a program including instructions for causing a computer to execute, and when expressed as a computer-readable storage medium in which the above-mentioned instructions are written, it is also The device of this application is applied. In addition, the names and terms used are not limited, and other expressions are also included in the present application as long as they have substantially the same content and the same spirit.

Claims (7)

  1. 一种控制电路，其中，A control circuit in which,
    当在能够连接耳机的插头的耳机端子上插入所述耳机的插头或阻抗不同于所述耳机的外部装置的插头时，基于所述耳机端子输出的检测信号，切换向所述耳机端子输出的输出信号，其中，所述耳机用于输入作为声音内容的声音信号的耳机信号。When a plug of the earphone or a plug of an external device whose impedance is different from the earphone is inserted into the earphone terminal of the plug to which the earphone can be connected, the output to the earphone terminal is switched based on the detection signal output by the earphone terminal signal, wherein the earphone is used for inputting the earphone signal as the sound signal of the sound content.
  2. 根据权利要求1所述的控制电路，其中，The control circuit of claim 1, wherein,
    所述检测信号包含插入检测信号以及电压检测信号，所述插入检测信号表示所述耳机端子上是否插入了所述插头，所述电压检测信号表示通过所述插头向所述耳机端子输入的所述耳机或所述外部装置的电压，The detection signal includes an insertion detection signal indicating whether the plug is inserted into the earphone terminal, and a voltage detection signal indicating whether the plug is input to the earphone terminal through the plug. the voltage of the headphones or the external device,
    所述控制电路具备：The control circuit includes:
    检测信号接收单元，其接收所述插入检测信号和所述电压检测信号；a detection signal receiving unit, which receives the insertion detection signal and the voltage detection signal;
    耳机信号接收单元，其接收所述耳机信号；an earphone signal receiving unit, which receives the earphone signal;
    连接判断单元，其基于所述插入检测信号和所述电压检测信号，判断在所述耳机端子上连接了所述耳机还是连接了所述外部装置；以及a connection determination unit that determines whether the earphone or the external device is connected to the earphone terminal based on the insertion detection signal and the voltage detection signal; and
    确定单元，其基于所述判断，确定将所述输出信号设为所述耳机信号还是设为与所述耳机信号不同的信号。A determination unit that determines whether the output signal is to be the headphone signal or a signal different from the headphone signal, based on the determination.
  3. 根据权利要求2所述的控制电路，其中，The control circuit of claim 2, wherein,
    在所述连接判断单元判断为在所述耳机端子上连接了所述外部装置的情况下，when the connection determination unit determines that the external device is connected to the earphone terminal,
    所述确定单元确定将与所述耳机信号不同的信号作为所述输出信号。The determination unit determines to use a signal different from the headphone signal as the output signal.
  4. 根据权利要求1至3中任一项所述的控制电路，其中，The control circuit according to any one of claims 1 to 3, wherein,
    所述外部装置是机顶盒。The external device is a set-top box.
  5. 根据权利要求4所述的控制电路，其中，The control circuit of claim 4, wherein,
    所述输出信号是所述耳机信号或用于控制所述机顶盒的遥控器输出的遥控器信号。The output signal is the earphone signal or a remote control signal output by a remote control for controlling the set-top box.
  6. 一种接收装置，其中，A receiving apparatus, wherein,
    所述接收装置具备：The receiving device includes:
    权利要求1至5中任一项所述的控制电路；The control circuit of any one of claims 1 to 5;
    耳机端子，其能够连接耳机的插头，所述耳机用于输入作为声音内容的声音信号的耳机信号；an earphone terminal capable of connecting a plug of an earphone for inputting an earphone signal as a sound signal of the sound content;
    内容数据获取单元，其接收包含所述声音内容的数字内容；a content data acquisition unit that receives digital content including the sound content;
    第1遥控器，其用于远程地进行操作；以及a first remote control for remotely operating; and
    遥控器信号接收单元，其接收包含所述第1遥控器输出的第1遥控器信号在内的遥控器信号，a remote control signal receiving unit, which receives a remote control signal including a first remote control signal output by the first remote control,
    所述遥控器信号接收单元接收第2遥控器输出的第2遥控器信号，其中，所述第2遥控器用于远程操作外部装置，The remote control signal receiving unit receives a second remote control signal output by a second remote control, wherein the second remote control is used to remotely operate an external device,
    所述控制电路将作为所述声音内容的声音信号的耳机信号或所述第2遥控器信号中的任一者作为输出信号向所述耳机端子输出。The control circuit outputs, as an output signal, either an earphone signal, which is an audio signal of the audio content, or the second remote control signal, to the earphone terminal.
  7. 一种使用权利要求6所述的接收装置的外部装置的控制方法，A control method of an external device using the receiving device according to claim 6,
    在所述接收装置的耳机端子上连接所述外部装置的插头，Connect the plug of the external device to the earphone terminal of the receiving device,
    所述接收装置的遥控器信号接收单元接收第2遥控器输出的第2遥控器信号，其中，所述第2遥控器用于远程操作所述外部装置，The remote control signal receiving unit of the receiving device receives a second remote control signal output by a second remote control, wherein the second remote control is used to remotely operate the external device,
    从所述接收装置的所述耳机端子向所述外部装置输出第2遥控器信号，outputting a second remote control signal from the earphone terminal of the receiving device to the external device,
    基于所述第2遥控器信号来控制所述外部装置。The external device is controlled based on the second remote control signal.
PCT/CN2021/111984 2020-10-16 2021-08-11 Control circuit, receiving apparatus, and control method WO2022078037A1 (en)

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