WO2022156245A1 - 接收装置 - Google Patents

接收装置 Download PDF

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Publication number
WO2022156245A1
WO2022156245A1 PCT/CN2021/118662 CN2021118662W WO2022156245A1 WO 2022156245 A1 WO2022156245 A1 WO 2022156245A1 CN 2021118662 W CN2021118662 W CN 2021118662W WO 2022156245 A1 WO2022156245 A1 WO 2022156245A1
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WIPO (PCT)
Prior art keywords
information
receiving
master
slave
signal
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PCT/CN2021/118662
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English (en)
French (fr)
Chinese (zh)
Inventor
井泽秀人
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
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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 CN202180006218.6A priority Critical patent/CN114731454A/zh
Publication of WO2022156245A1 publication Critical patent/WO2022156245A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • 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
    • H04N21/43—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

Definitions

  • the present disclosure relates to a receiving device with a video recording function and a recording function.
  • the reception apparatus connected to the network can broadcast the program distributed from the server via the network in addition to the program broadcast of the received broadcast wave.
  • the reception apparatus connected to the network in this way communicates with a server or the like that distributes the program.
  • a server or the like that distributes the program.
  • Patent Document 1 Japanese Patent Laid-Open No. 2003-319380
  • the embodiments described below are made to solve the related problems, and an object thereof is to provide a reception apparatus that realizes communication between reception apparatuses connected to a network without placing a server or the like.
  • the reception apparatus of the present application is a reception apparatus capable of communicating with other reception apparatuses belonging to a shared network.
  • the receiving device includes: a management unit that determines whether the device is a master device that distributes information to other receiving devices or a slave device that receives distribution of information from other receiving devices, and records the determination result; an information generating unit that generates a slave device.
  • the upstream communication unit when the result of the determination that the device is the slave device, transmits the first information to the other receiving device that is the master device, and receives distribution of the fourth information generated by the other receiving apparatus as the master apparatus; and a playback unit for playing back the fourth information.
  • FIG. 1 is a block diagram showing a configuration of a receiving apparatus according to an embodiment
  • FIG. 2 is a block diagram showing a configuration of a control unit of the receiving apparatus according to the embodiment
  • FIG. 3 is a flowchart showing a master device determination procedure of the receiving device according to the embodiment.
  • FIG. 4 is a flowchart showing a procedure for changing the master device of the receiving device according to the embodiment
  • FIG. 5 is a flowchart showing a slave device management procedure of the receiving device according to the embodiment.
  • FIG. 6 is a flowchart showing a distribution operation of the receiving apparatus according to the embodiment.
  • FIG. 7 is a diagram showing a state of signal processing in the receiving apparatus according to the embodiment.
  • FIG. 8 is a flowchart showing a playback operation of the receiving apparatus according to the embodiment.
  • the receiving apparatus of the present application is, for example, a network-connectable television receiver or the like.
  • a network-connectable television receiver or the like When such a television receiver is placed in each room in a home and connected to a network, program distribution and the like can be performed.
  • the conventional television receivers function independently of each other, communication between the television receivers via the network is hardly performed.
  • the television receivers arranged in each room in the home can also function as an information common infrastructure between the rooms.
  • a microphone can be installed in a television receiver to function as a walkie-talkie between rooms, or it can share operation information (for example, information of a channel being broadcast, a distribution program being received, etc.) of a television receiver in another room.
  • the receiving apparatus of the present application realizes a new function of a receiving apparatus, mainly a television receiver, from a certain point of view.
  • the receiver 1 ( 1a , 1b , 1c , 1d ) according to the embodiment is, for example, a digital television receiver having a recording function.
  • the receiving device 1 includes an antenna ANT, a tuner 11, a demultiplexing module 12, a control unit 13, a keyboard KB and a microphone MIC as input interfaces, a network interface (I/F) 14, a video decoder 15, and an audio decoder 16.
  • the tuner 11 is a circuit block that selects a desired broadcast wave (broadcast station) from, for example, a digital broadcast wave acquired by the antenna ANT.
  • the broadcast wave is not limited to being acquired from an antenna, and may be acquired from a cable television station or the like via a cable.
  • the demultiplexing module 12 is a circuit block that separates the video signal and audio signal multiplexed on the broadcast wave, and outputs them to the video decoder 15 and the audio decoder 16, respectively.
  • the video decoder 15 is a circuit block that decodes the video signal separated by the demultiplexing module 12 and outputs the decoded digital video signal to the image processing module 17 .
  • the audio decoder 16 is a circuit block that decodes the sound signal separated by the demultiplexing module 12 and outputs the decoded digital sound signal to the sound processing module 18 .
  • the image processing module 17 and the audio processing module 18 perform predetermined image processing and audio processing on the decoded digital video signal and digital audio signal, and output the processed video signal and audio signal to the display device D and the speaker SP, respectively and play the circuit blocks.
  • the control unit 13 is connected to the network LAN via the network interface 14 .
  • the control unit 13 has a function of communicating with other receiving apparatuses connected to the network LAN, receiving program distribution, and sending operation information of the other apparatuses to the image processing module 17 and the audio processing module 18 .
  • the network interface 14 is, for example, an interface based on a standard such as an Ethernet network, and has a function of connecting the receiving apparatus 1 to a network LAN.
  • the reception apparatus 1 is connected to other reception apparatuses 1 , a router RT, and the like via a network LAN.
  • the router RT is, for example, a device that connects the Internet and a network LAN, and may have a function of distributing a distribution program received via the Internet to the receiving apparatus 1 .
  • a keyboard KB, a microphone MIC, and an indicator L are connected to the control unit 13 as hardware elements.
  • the keyboard KB is, for example, an input interface such as a switch, a touch panel, and a keyboard, and has a function of receiving an instruction from the user and transmitting it to the control unit 13 .
  • the microphone MIC has a function of acquiring the voice of a user or the like and transmitting it to the control unit 13 .
  • the indicator L is an output interface for notifying the user of the operation state and the like of the receiving device 1 , and can be realized by, for example, a lamp, a liquid crystal device, or the like.
  • the indicator L may be an element such as a buzzer that transmits an audible signal to the user.
  • the reception apparatus 1 of the present application is configured to be connectable to other reception apparatuses through the network interface 14 .
  • the control unit 13 includes an instruction signal generation unit 131 , a sound signal generation unit 132 , a display signal generation unit 133 , a counterparty management unit 134 , a sound processing unit 135 , a synthesis processing unit 136 , and a network communication unit 137 , an upstream communication unit 138 and a downstream communication unit 139 .
  • the reception apparatus 1 of the present application can transmit information to and receive information from other reception apparatuses connected via a network LAN.
  • voice information is transmitted and received between receiving apparatuses via a network LAN.
  • the instruction signal generating unit 131 is a functional element that generates an instruction signal based on a user instruction received from the keyboard KB.
  • the instruction signal generation unit 131 generates a transmission instruction signal when, for example, an audio signal is transmitted from the reception apparatus 1 to another reception apparatus.
  • the audio signal generation unit 132 is a functional element for generating an audio signal in a form that can be transmitted over the network based on the audio signal received by the microphone MIC.
  • the generated sound signal can be digital or analog.
  • the display signal generation unit 133 is a functional element that generates a display signal according to the operation of the receiving device 1 to drive the indicator L.
  • the display signal generating unit 133 generates a display signal indicating the content of the notification to the user according to the type of the indicator L. For example, if the indicator L is an LED element when indicating an operating state of the receiving device 1 such as transmission or reception, the display signal 133 generates a display signal that changes the lighting state, the frequency of blinking, the color, and the like.
  • the counterpart management unit 134 is a functional element that is connected to the network LAN and manages other reception apparatuses that can communicate with the reception apparatus 1 . Specifically, the counterpart management unit 134 associates and holds information such as IDs, network addresses, and types of other receiving apparatuses with which the receiving apparatus 1 can communicate, and which indicate whether they are master or slave.
  • the master device is a receiving device having a function of synthesizing and distributing voice information from the slave device and voice information generated by the voice signal generating unit 132 of the own device to other receiving devices serving as slave devices.
  • a slave device is a receiving device having a function of transmitting voice information from the own device to the master device and receiving distribution of the voice information synthesized by the master device.
  • the receiving device of the present application can function as a master device itself and can also function as a slave device.
  • the types of other reception apparatuses managed by the counterpart management unit 134 differ depending on whether the reception apparatus 1 itself is a master apparatus or a slave apparatus.
  • the audio processing unit 135 is a functional element that processes the audio signal generated by the audio signal generation unit 132 and the audio signal received from the downstream communication unit 139 in charge of communication with the slave device.
  • the synthesis processing unit 136 is a functional element for synthesizing the audio signal processed by the audio processing unit 135 to generate an audio signal for distribution.
  • the audio signal for distribution is the audio for redistributing the audio signal received from the other receiving device as the slave device together with the audio signal emitted by the own device as the master device and redistributing it to the other receiving device as the slave device Signal.
  • the network communication unit 137 is a functional element that performs connection to other receiving devices connected to the network LAN, a master device identification process, and the like.
  • the upstream communication unit 138 is a functional element that communicates with another reception apparatus that is a master apparatus when the reception apparatus 1 is a slave apparatus.
  • the downstream communication unit 139 is a functional element that communicates with other reception apparatuses that are slave apparatuses when the reception apparatus 1 is the master apparatus.
  • the reception device of the present application includes an upstream communication unit that communicates with a master device and a downstream communication unit that communicates with a slave device, and functions as both a master device and a slave device. Further, the receiving apparatus of the present application includes a synthesis processing section in addition to the sound processing section, and generates a sound signal for distribution by synthesizing the transmission signal from the apparatus. That is, the communication between the slave devices is realized via the audio signal for distribution by the master device.
  • the reception apparatus of the present application can belong to a network shared by a plurality of reception apparatuses, such as a television in a home. In this case, it is complicated to manage each receiving apparatus by a server or the like. Furthermore, taking a television in a home as an example, it is difficult to predetermine the operating state (on/off state of the power supply) of each receiving apparatus. Therefore, the reception apparatus of the present application determines the master apparatus by communicating with other reception apparatuses using a specific communication procedure.
  • the receiving device when the receiving device is a TV in the home, the capability of the control unit in charge of the network connection is not constant. Therefore, in the receiving device of the present application, all audio signals transmitted from the receiving device as the slave device are transmitted to the master device, and the slave master device distributes the audio signal transmitted from each slave device to each slave device as a distribution audio signal. This enables communication between slave devices even if the reception device has low network performance and voice processing capability.
  • the counterpart management unit 134 records the receiving device 1a as the own device as a slave device (S200).
  • the setting as a slave device may be when connecting to a network LAN or when starting communication with another receiving device.
  • the network communication unit 137 transmits the broadcast signal with the ID of the receiving device 1a to the network LAN (S205).
  • the broadcast signal transmitted by the network communication unit 137 may be a transmission signal (packet signal, etc.) of another method according to the format of the network LAN.
  • the broadcast signal includes, in addition to the ID of the receiving device 1a, address information of the device, type information indicating whether the device is a master device or a slave device, operating time information indicating the total time since the device was connected to the network LAN, and the like.
  • the network communication unit 137 After transmitting the broadcast signal, the network communication unit 137 waits for the reception of a response from another receiving apparatus ( S210 ). When there is a reply to the received signal (ACK signal) of the broadcast signal from another receiving device (for example, the receiving device 1b) (Yes in S210), the counterpart management unit 134 determines that a master device already exists on the network LAN, and sends the ACK signal The ID and address information contained in the data are recorded as the information of the main device (S220).
  • the counterpart management unit 134 determines that the receiving apparatus 1a, which is the own apparatus, is the master, and records that (No in S210). S215). That is, in the reception apparatus of the present application, the master apparatus is set in the order in which the reception apparatuses are connected to the network LAN. Therefore, when the management apparatus such as a server is not installed in the network LAN, the reception apparatus can be specified by a simple procedure. master-slave relationship.
  • the fact that the own device is set as the master device without responding to its own broadcast signal means that there is no other receiving device on the network LAN.
  • the network communication unit 137 waits for signal reception from the other receiving devices (1b, 1c, 1d) (S225). When no signal is received for a certain period of time (No in S225 ), the network communication unit 137 enters the standby mode.
  • the network communication unit 137 determines whether the type information included in the broadcast signal is the master device or the slave device (S230). When the type information included in the broadcast signal is a slave device (Yes in S230 ), the counterpart management unit 134 records the ID and address information of the receiving device 1 b included in the broadcast signal as the ID and address information of the slave device ( S235 ) ). Then, the network communication unit 137 transmits an ACK signal as the master device to the reception device 1b. Thereby, the reception apparatus 1b can know the existence of the reception apparatus 1a as the master apparatus.
  • the network communication unit 137 reads the operating time information of the receiving device 1b from the received broadcast signal, and acquires the operating time information of the receiving device 1a as the own device from the network interface 14 (S240).
  • the counterpart management unit 134 compares the received operating time information of the receiving device 1b with the operating time information of the receiving device 1a that is the own device (S245).
  • the reception device 1b that is not suitable as a master device determines suitability as a master device based on the broadcast signal transmitted from the reception device 1a, and changes the setting from the master device to the slave device.
  • the counterpart management unit 134 of the reception apparatus 1a records the ID and address information of the reception apparatus 1b as the slave apparatus.
  • the counterpart management unit 134 determines that the target device is suitable as the master device, and sets the own device as the slave device ( S250). Then, the ID and address information of the receiving device 1b included in the broadcast signal are recorded as the ID and address information of the main device (S255). Then, the network communication unit 137 transmits an ACK signal including the ID, address information, and type information of the receiving device 1a indicating that the receiving device 1a is a slave device to the receiving device 1b. Thereby, the receiving apparatus 1b can know that the own apparatus is suitable as a master apparatus.
  • the suitability of the master device is determined based on the operating time of the receiving device (or the network interface), but the present invention is not limited to this.
  • an index indicating its own performance may be included in the broadcast signal, and judgment may be made based on the index, or the address information number may be prioritized and set as the master device. These judgment criteria may also be combined.
  • the above-mentioned step of "setting this apparatus as the master apparatus" ( S215 ) may be omitted, and it may be configured to function as a slave apparatus all the time.
  • the reception apparatus of the present application can communicate with other reception apparatuses belonging to a network LAN shared by a plurality of reception apparatuses, such as a television in a home. At this time, when the reception device serving as the master device is disconnected from the network LAN, the distribution audio signal distributed from the master device is disconnected. Therefore, in order to maintain communication between the reception apparatuses, a resetting process of the master apparatus is required.
  • the partner management unit 134 determines that the master device already exists on the network LAN, it records the ID and address information of the reception device 1b as the master device as master device information (S220).
  • reception apparatuses 1a . . . 1d belong to the network LAN and are in a communicable state, they transmit broadcast signals at fixed time intervals (S330). As a result of the transmission of the broadcast signal, if the signal from the master device cannot be received within a certain period of time (No in S335), the counterpart management unit 134 determines that there is no master device in the network LAN, and records the own device as the master device (S340). ).
  • the counterpart management unit 134 It is determined that there is no change in the master device, and the process ends.
  • the ID indicated by the counterpart management unit 134 in the signal is the reception device as the master device recorded by the counterpart management unit 134
  • the reception device 1c that is the master device with the ID different from 1b it is determined that the master device has been changed, and the ID and address information of the reception device 1c of the new ID are recorded as the master device information (S350). .
  • the reception apparatus of the present application can autonomously identify the master apparatus from the transmission and reception of broadcast signals even when the master apparatus fluctuates.
  • reception apparatus 1a is the master apparatus
  • reception apparatus 1a is disconnected from the network LAN due to the power off of the apparatus or the like
  • the reception apparatus of the present application can communicate with other reception apparatuses belonging to a network LAN shared by a plurality of reception apparatuses, such as a television in a home. At this time, if the receiving device serving as the slave device is disconnected from the network LAN, it is necessary to change the transmission destination of the distribution audio signal distributed from the master device.
  • the counterpart management unit 134 determines that the receiving device 1a serving as the own device is the master device, the content is recorded (S215).
  • the reception apparatus 1a transmits the broadcast signal at regular intervals while belonging to the network LAN (S420).
  • the network communication unit 137 receives the ACK signal from the other receiving devices 1b . . . 1d as slave devices (Yes in S425), the counterpart management unit 134 updates the records of the slave devices under its control (S430).
  • the network communication unit 137 starts a timer for each target device and monitors the presence or absence of a received signal (No in S435 ). If there is no response from the receiving device 1c as the slave device and a predetermined time has elapsed (Yes in S435), the counterpart management unit 134 deletes the record of the receiving device 1c that did not respond (S440).
  • the receiving device of the present application can always monitor the movements of the slave devices under the control when the own device is the master device.
  • the distribution operation of the audio signal in the case where the reception device 1a of the present application is the master device will be described with reference to FIG. 2 and FIG. 6 .
  • the reception apparatuses 1b, 1c, and 1d are connected to the network LAN as slave apparatuses will be described.
  • the microphone MIC and the sound signal generating unit 132 of the receiving device 1b When the user operates the keyboard KB of the receiving device 1b to switch to the transmission state and emit a sound, the microphone MIC and the sound signal generating unit 132 of the receiving device 1b generate a sound signal of the sound (S400).
  • the audio processing unit 135 of the reception device 1b assigns the ID of the reception device 1b as the own device and the ID of the reception device 1a as the master device to the generated audio signal, and generates a transmission audio signal.
  • the upstream communication unit 138 of the reception device 1b transmits the generated audio signal for transmission to the reception device 1a serving as the master device (S405).
  • the downstream communication unit 139 of the receiving device 1a serving as the master device receives the audio signal for transmission from the receiving device 1b serving as the slave device (S410).
  • the audio processing unit 135 of the reception device 1a as the master device stores the transmission audio signal received by the downstream communication unit 139 in a buffer (not shown) for each transmission source slave device (S415).
  • FIG. 7 shows the state of processing of the audio signal by the host device.
  • the signal transmitted by the receiving device 1b (referred to as “slave 1b device” in FIG. 7 , which is a slave device.
  • the same applies hereinafter) is stored in the buffer as a “slave 1b audio signal”.
  • the signals transmitted by the receiving devices 1c and 1d (similarly, “slave 1c device” and “slave 1d device") as slave devices are stored in the buffer as “slave 1c audio signal” and "slave 1d audio signal”.
  • master 1a device referred to as "master 1a device” in FIG.
  • the reception device 1a does not transmit the audio signal.
  • the audio signal is transmitted to the network LAN, and the audio processing unit 135 of the reception device 1a, which is the host device, directly stores it in the buffer as the "host 1a audio signal".
  • the audio processing unit 135 of the reception device 1a as the master device stores the received audio signal for transmission and the transmission signal of its own device in a buffer, and starts a timer for monitoring whether a predetermined distribution timing has been reached (S420).
  • the downstream communication unit 139 of the reception device 1 a as the master device receives the audio signal for transmission from the reception device as the slave device, and performs audio processing on the reception device 1 a as the master device
  • the unit 135 continues storing in the buffer for each slave device of the transmission source (S410, S415).
  • the synthesis processing unit 136 of the reception device 1 a serving as the master device synthesizes the audio signal of each reception device stored in the buffer by the audio processing unit 135 to generate an audio signal for distribution (S425).
  • the audio signal for distribution is obtained by synthesizing all audio signals other than the audio signal transmitted by the distribution target. As shown in FIG.
  • the synthesis processing unit 136 when the “master 1a audio signal”, “slave 1b audio signal”, “slave 1c audio signal”, and “slave 1d audio signal” are stored in the buffer, the synthesis processing unit 136 combines the “slave 1b audio signal” The audio signal", the “slave 1c audio signal”, and the “slave 1d audio signal” are synthesized to generate a distribution audio signal to the "main 1a device". Similarly, the synthesis processing unit 136 synthesizes the "master 1a audio signal”, “slave 1c audio signal”, and “slave 1d audio signal” to generate a distribution audio signal to the slave device "slave 1b device". The purpose of not including the sound signal of the target device in the sound signal for distribution is to suppress howling and discomfort experienced by the user due to the re-output of sound received by the microphone MIC in the receiving device that receives and distributes.
  • the downstream communication unit 139 of the reception device 1a as the master device transmits the corresponding distribution audio signal to the distribution target (S430). That is, in the example shown in FIG. 7 , when the synthesis processing unit 136 generates the audio signal for distribution including the “master 1a audio signal”, the “slave 1c audio signal”, and the “slave 1d audio signal”, the downstream communication unit 139 generates the audio signal for distribution. The sound signal for distribution is sent to the slave device "Slave 1b device".
  • the upstream communication unit 138 of the receiving device 1b serving as the slave device receives the distribution audio signal including the "master 1a audio signal”, “slave 1c audio signal”, and “slave 1d audio signal” (S435).
  • the received sound signal for distribution is sent to the sound processing module 18 of the receiving device 1b as the slave device, and is provided to the user through the speaker SP.
  • the reception device 1a serving as the master device repeats the synthesis process of the distribution audio signal and the transmission process of the number of objects to be buffered (No in S440).
  • the audio signal for distribution to the receiving device 1a as the master device including the "slave 1b audio signal”, “slave 1c audio signal”, and “slave 1d audio signal”, is transmitted to the own device. Therefore, if the synthesis processing unit 136 generates Audio signals for distribution including "Sub 1 audio signal”, “Sub 2 audio signal”, and "Sub 3 audio signal" are not transmitted to the network LAN, but can be directly transmitted to the audio processing module 18 .
  • the upstream communication unit 138 of the receiving device 1b serving as the slave device receives the audio signal for distribution to the receiving device 1b transmitted from the receiving device 1a serving as the master device.
  • the sound processing unit 135 of the receiving device 1 b serving as the slave device transmits the sound signal for distribution to the receiving device 1 b received by the upstream communication unit 138 to the sound processing module 18 .
  • the sound processing module 18 drives the speaker SP, and outputs the received sound signal as a sound.
  • the display signal generation unit 133 generates a display signal and drives the indicator L in conjunction with the reception processing of the sound signal for distribution.
  • the receiving device serving as the slave device can directly play the distribution audio signal distributed from the receiving device serving as the master device, so that the burden on the receiving device serving as the slave device can be reduced.
  • voice signal for distribution to a master apparatus is produced
  • the synthesis processing unit 136 of the receiving device 1a which is the master device, may directly transmit the buffered signal including the "slave 1b audio signal", “slave 1c audio signal", and "slave 1d audio signal” to the sound processing of the receiving device 1a. module 18. In this case, the load on the reception device 1a as the master device can be suppressed.
  • the driving operation of the indicator L in the receiving apparatus of the present application will be described with reference to FIG. 2 and FIG. 8 .
  • the following is an example of a case where the receiver device 1b serving as the slave device receives the audio signal for distribution.
  • the upstream communication unit 138 of the reception device 1b serving as the slave device receives the distribution audio signal including the "master 1a audio signal”, the "slave 1c audio signal”, and the "slave 1d audio signal” (S500).
  • the display signal generator 133 of the receiving device 1b transmits a playback display signal to the indicator L, and the indicator L turns on the display indicating the playback of the audio signal (S505).
  • the received sound signal for distribution is sent to the sound processing module 18 of the receiving device 1b, and is provided to the user through the speaker SP (S510).
  • the display signal generating unit 133 of the receiving device 1b starts a timer from the reception of the distribution audio signal, and counts the elapsed time since the distribution audio signal is played (S515).
  • the display signal generation unit 133 stops the transmission of the broadcast display signal (S520). Thereby, the display of the indicator L is turned off.
  • the receiving device serving as the slave device transmits the user's voice signal to the receiving device serving as the master device located upstream.
  • the receiving device serving as the master device stores the audio signal transmitted from the receiving device serving as the slave device located downstream in the buffer for each transmission source.
  • the user's voice signal directly received by the receiver as the master device through the microphone MIC is directly stored in the buffer.
  • the receiver as the master synthesizes the audio signals of each transmission source stored in the buffer at regular intervals, and distributes it to the receiver as the slave.
  • the audio signal for distribution transmitted to a certain slave device is not synthesized with the audio signal from the slave device.
  • the receiving device serving as the slave device acoustically outputs the received distribution audio signal.
  • the user can transmit an audio signal to other receivers belonging to the shared network through his own receiver and the receiver as the master. Similarly, the user can receive audio signals from other receivers belonging to the shared network via the other receivers serving as the master.
  • the receiver as the slave does not need to grasp all the addresses and the like of the other receivers.
  • the receiving device serving as the slave device only receives, the load on the device can be reduced.
  • the information communicated between the receiving apparatuses has been described as audio information, but the present invention is not limited to this.
  • the information communicated between the receiving apparatuses for example, the operation states of the respective receiving apparatuses can be exchanged.
  • the operation state of the receiving device for example, the channel being received by the receiving device, the distribution information being broadcasted, the presence or absence of the operation of the receiving device itself, and the like are exemplified.

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PCT/CN2021/118662 2021-01-21 2021-09-16 接收装置 WO2022156245A1 (zh)

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JP2021-007979 2021-01-21

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Citations (8)

* Cited by examiner, † Cited by third party
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