CN114731454A - Receiving apparatus - Google Patents
Receiving apparatus Download PDFInfo
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- CN114731454A CN114731454A CN202180006218.6A CN202180006218A CN114731454A CN 114731454 A CN114731454 A CN 114731454A CN 202180006218 A CN202180006218 A CN 202180006218A CN 114731454 A CN114731454 A CN 114731454A
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 15
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 5
- 230000005236 sound signal Effects 0.000 description 119
- 230000005540 biological transmission Effects 0.000 description 27
- 230000006870 function Effects 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 11
- 238000003786 synthesis reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
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- 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
- H04N21/426—Internal components of the client ; Characteristics thereof
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- 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
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Provided is a receiving device which can realize communication between receiving devices connected to a network without placing a server or the like. The receiving device is provided with: a management unit that identifies that the device is a master device that distributes information to another receiving device or that the device is a slave device that receives distribution of information from another receiving device, and records the identification result; an information generating unit that generates the 1 st information transmitted from the device itself; a downstream communication unit that, when the device is the master device as a result of the determination, generates 3 rd information including at least one of the 1 st information and 2 nd information generated by another receiving device that is a slave device, and transmits the 3 rd information to the other receiving device that is the slave device; an upstream communication unit that transmits the 1 st information to another receiving device as a master device and receives the distribution of the 4 th information generated by the other receiving device as the master device, when the own device is a slave device as a result of the determination; and a playback unit that plays back the 4 th information.
Description
Cross Reference to Related Applications
The present application claims priority to the filing of japanese patent application having japanese patent office, application number 2021-.
Technical Field
The present disclosure relates to a receiving apparatus having a video recording function and a sound recording function.
Background
Television receiving apparatuses (receiving apparatuses) that receive broadcast waves and broadcast programs are widely used, and many individuals in a family often have their own receiving apparatuses. On the other hand, networking of home appliances has been advanced, and network-connectable receiving devices have become widespread. The receiving apparatus connected to the network can play a program distributed from the server via the network in addition to the broadcast wave program received.
In this way, the receiving apparatus connected to the network often communicates with a server or the like that distributes a program. However, when a receiving apparatus is connected to an in-home LAN or the like without placing a server, it is difficult to perform communication between the receiving apparatuses.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open No. 2003 and 319380
Disclosure of Invention
As described above, the conventional receiving apparatus has a problem that it is difficult to perform communication between the receiving apparatuses when the receiving apparatuses are connected to a network. The embodiments described below are proposed to solve the problems, and an object of the embodiments is to provide a receiving apparatus that realizes communication between receiving apparatuses connected to a network without placing a server or the like.
A receiving apparatus according to the present application is a receiving apparatus capable of communicating with another receiving apparatus belonging to a common network. The receiving device is provided with: a management unit that determines whether the device is a master device that distributes information to another receiving device or a slave device that receives information distribution from another receiving device, and records the determination result; an information generating unit that generates the 1 st information transmitted from the device itself; a downstream communication unit that, when the device is the master device as a result of the determination, generates 3 rd information including at least one of the 1 st information and 2 nd information generated by another receiving device as a slave device, and transmits the 3 rd information to the other receiving device as the slave device; an upstream communication unit that, when the device is determined to be a slave device, transmits the 1 st information to another receiving device as a master device and receives the distribution of the 4 th information generated by the other receiving device as the master device; and a playback unit that plays the 4 th information.
Drawings
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 specifying step of the receiving device according to the embodiment;
fig. 4 is a flowchart showing a master device changing procedure 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.
Description of the reference numerals
1(1a, 1b, 1c, 1D) … receiving apparatus, 11 … tuner, 12 … demultiplexing module, 13 … control section, 14 … network interface, 15 … video decoder, 16 … audio decoder, 17 … image processing module, 18 … sound processing module, D … display device, SP … speaker, KB … keyboard, MIC … microphone, L … pointer, LAN network, 131 … pointer signal generating section, 132 … sound signal generating section, 133 … display signal generating section, 134 … counterpart managing section, 135 … sound processing section, 136 … synthesis processing section, 137 … network communication section, 138 … upstream communication section, 139 … downstream communication section.
Detailed Description
The receiving apparatus of the present application is, for example, a television receiver or the like connectable to a network. Such a television receiver can perform program distribution and the like if it is disposed in each room in a home and connected to a network. On the other hand, since the conventional television receivers are each independently functioning, communication between the television receivers via a network is hardly performed.
However, a television receiver disposed in each room in a home can also function as an information infrastructure between the rooms. For example, a microphone may be provided in the television receiver to function as an intercom between the rooms, or the television receiver may share operation information (for example, information on a channel being broadcast, a distribution program being received, and the like) of the television receiver in another room. From a certain viewpoint, the receiving apparatus of the present application realizes a new function of a receiving apparatus mainly including a television receiver.
Hereinafter, embodiments will be described in detail with reference to the drawings. As shown in fig. 1, the receiving apparatus 1(1a, 1b, 1c, 1d) according to the embodiment is, for example, a digital television receiving apparatus having a recording function. The receiving apparatus 1 includes: an antenna ANT, a tuner 11, a demultiplexing module 12, a control section 13, a keyboard KB and a microphone MIC as input interfaces, a network interface (I/F)14, a video decoder 15, an audio decoder 16, an image processing module 17, a sound processing module 18, a display device D capable of displaying digital video signals, and a speaker SP having a D/a conversion function and capable of outputting digital sound signals.
The tuner 11 is a circuit block that selects a desired broadcast wave (broadcasting station) from, for example, a digital broadcast wave acquired by an 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 and outputs a video signal and an audio signal multiplexed on a broadcast wave 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. On the other hand, 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 are circuit blocks that perform predetermined image processing and audio processing on the decoded digital video signal and digital audio signal, and output and play the processed video signal and audio signal to the display device D and the speaker SP, respectively.
The control unit 13 is connected to a network LAN via a network interface 14. The control unit 13 has the following functions: the program distribution is received by communicating with another receiving apparatus connected to the network LAN, and the operation information of the other apparatus is sent to the image processing module 17 and the audio processing module 18. The network interface 14 is an interface based on a standard such as an ethernet network, and has a function of connecting the reception device 1 to a network LAN.
The receiving apparatus 1 is connected to other receiving apparatuses 1, a router RT, and the like via a network LAN. The router RT is, for example, a device for connecting 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.
The keyboard KB, the microphone MIC, and the indicator L are connected to the control unit 13 as hardware elements. The keyboard KB is an input interface such as a switch, a touch panel, and a keyboard, and has a function of receiving an instruction from a user and transmitting the instruction to the control unit 13. The microphone MIC has a function of acquiring a voice of a user or the like and transmitting the voice to the control unit 13. The indicator L is an output interface for presenting the operating state of the receiving apparatus 1 to the user, and can be realized by a lamp, a liquid crystal device, or the like, for example. The indicator L may be a buzzer or the like which can transmit an acoustic signal to the user.
In this way, the receiving apparatus 1 of the present application can be connected to another receiving apparatus through the network interface 14.
Next, the configuration of the control unit 13 in the receiving apparatus 1 of the present application will be described in detail with reference to fig. 2. As shown in fig. 2, the control unit 13 of the embodiment includes: an instruction signal generation unit 131, a voice signal generation unit 132, a display signal generation unit 133, a partner management unit 134, a voice processing unit 135, a synthesis processing unit 136, a network communication unit 137, an upstream communication unit 138, and a downstream communication unit 139.
The receiving apparatus 1 of the present application can transmit information to and receive information from another receiving apparatus connected via a network LAN. In the following example, the transmission and reception of audio information between receiving apparatuses via a network LAN will be described.
The instruction signal generating unit 131 is a functional element that generates an instruction signal based on an instruction of the user received from the keyboard KB. The instruction signal generating unit 131 generates a transmission instruction signal when, for example, an audio signal is transmitted from the receiving apparatus 1 to another receiving apparatus.
The audio signal generator 132 is a functional element that generates an audio signal of a type transmittable over a network based on an acoustic signal received by the microphone MIC. The generated sound signal may be digital or analog.
The display signal generating unit 133 is a functional element that generates a display signal according to the operation of the receiving apparatus 1 and drives the indicator L. The display signal generation unit 133 generates a display signal indicating the notification content to the user in accordance with the type of the indicator L. For example, when the indicator L is an LED element in the case of indicating an operation state such as transmission or reception of the receiving apparatus 1, the display signal 133 generates a display signal for changing a lighting state, a frequency of blinking, a color, and the like.
The partner management unit 134 is a functional element that is connected to the network LAN and manages another receiving apparatus that can communicate with the receiving apparatus 1. Specifically, the partner management unit 134 associates and holds information such as an ID, a network address, and a type of a master device or a slave device of another receiving device with which the receiving device 1 can communicate. Here, the master device is a receiving device having a function of synthesizing the sound information emitted from the slave device and the sound information generated by the sound signal generating unit 132 of the master device and distributing the synthesized sound information to another receiving device as a slave device. The slave device is a receiving device having a function of transmitting audio information generated by the device itself to the master device and receiving distribution of audio information synthesized by the master device. The receiving device of the present application can function as a master device itself and also as a slave device. The other receiving apparatuses managed by the counterpart management unit 134 are different in kind depending on whether the receiving apparatus 1 itself is a master or a slave.
The audio processing unit 135 is a functional element that processes the audio signal generated by the audio signal generating unit 132 and the audio signal received from the downstream communication unit 139 that performs communication with the slave device. The synthesis processing unit 136 is a functional element that synthesizes the audio signal processed by the audio processing unit 135 and generates a speech signal for transmission. Here, the distribution audio signal is an audio signal for synthesizing an audio signal received from another receiving device as a slave device together with an audio signal emitted from the own device as a master device and distributing the synthesized audio signal to another receiving device as a slave device.
The network communication unit 137 is a functional element that executes connection with another receiving device connected to the network LAN, a master device specifying step, and the like. The upstream communication unit 138 is a functional element that communicates with another receiving device as a master device when the receiving device 1 is a slave device. The downstream communication unit 139 is a functional element for communicating with another receiving device as a slave device when the receiving device 1 is a master device.
The receiving 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 the master device and the slave device. The receiving device of the present application includes a synthesis processing unit in addition to the audio processing unit, and synthesizes the transmission signals from the devices to generate a speech signal for transmission. That is, communication between the slave devices is realized via the distribution audio signal by the master device.
The receiving apparatus of the present application can belong to a network shared by a plurality of receiving apparatuses, such as a television in a home. In this case, it is troublesome to manage the receiving apparatuses by a server or the like. In addition, when a television at home is taken as an example, it is difficult to determine the operation state (on/off state of power) of each receiving apparatus in advance. Therefore, the receiving device of the present application determines the master device by communicating with other receiving devices using a specific communication procedure.
In addition, when the receiving apparatus is a home television, the capability of serving as a control unit for network connection is not necessarily required. Therefore, in the receiving device of the present application, all the audio signals transmitted from the receiving device, which is a slave device, are transmitted to the master device, and the slave device distributes the audio signals transmitted from each slave device to each slave device as a distribution audio signal. Thus, even a receiving apparatus having low network performance and low voice processing capability can realize communication between slave apparatuses.
Hereinafter, a master device specifying step of the receiving device according to the present application will be described with reference to fig. 2 and 3. First, when the power of the receiving apparatus 1a is turned on, the partner management unit 134 records the receiving apparatus 1a as the own apparatus as the slave apparatus (S200). The setting of the slave device may be when the slave device is connected to the network LAN or when communication with another receiving device is started.
Next, the network communication unit 137 transmits the broadcast signal with the ID of the receiving apparatus 1a attached thereto to the network LAN (S205). The broadcast signal transmitted by the network communication unit 137 may be a transmission signal (packet signal or the like) of another system according to the format of the network LAN, as long as the broadcast signal can be uniformly transmitted to another receiving device belonging to the network LAN. The broadcast signal includes, in addition to the ID of the receiving device 1a, address information of the own device, type information indicating whether the own device is a master device or a slave device, operating time information indicating the total time after the own device is connected to the network LAN, and the like.
After transmitting the broadcast signal, the network communication unit 137 waits for response reception from another receiving apparatus (S210). When a reply to the received signal (ACK signal) for the broadcast signal is present from another receiving device (for example, the receiving device 1b) (yes in S210), the partner management unit 134 determines that the master device is already present on the network LAN, and records the ID and address information included in the ACK signal as information of the master device (S220).
If the ACK signal is not returned from the other receiving device to the broadcast signal within the predetermined time (no in S210), the peer management unit 134 determines that the receiving device 1a as the own device is the master device and records the determination (S215). That is, in the receiving apparatus of the present application, since the master apparatus is set in the order of connecting the receiving apparatuses to the network LAN, the master-slave relationship of the receiving apparatus can be defined by a simple procedure without providing a management apparatus such as a server in the network LAN.
The setting of the device as the master device without responding to the broadcast signal of the device (S215) means that no other receiving device exists on the network LAN. The network communication unit 137 waits for signal reception from other receiving apparatuses (1b, 1c, 1d) (S225). When the signal is not received for a certain period of time (no in S225), the network communication unit 137 enters the standby mode.
When the own device becomes the master device and receives a broadcast signal from another receiving device (for example, the receiving device 1b) (yes in S225), the network communication unit 137 determines whether the type information included in the broadcast signal is the master device or the slave device (S230). If the type information included in the broadcast signal is the slave device (yes in S230), the partner managing unit 134 records the ID and address information of the receiving device 1b 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 a master device to the receiving apparatus 1 b. Thereby, the receiving device 1b can know the presence of the receiving device 1a as the master device.
When the genre information included in the broadcast signal is the master device (no in S230), the receiving device 1a serving as the own device is also the master device, and therefore, there are a plurality of master devices. Accordingly, the network communication section 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 partner managing unit 134 compares the received operating time information of the receiving device 1b with the operating time information of the receiving device 1a as the own device (S245).
As a result of the comparison, when the operating time of the receiving device 1a is longer than the operating time of the receiving device 1b (no in S245), the partner management unit 134 determines that the own device is suitable as the master device (i.e., the operating time is longer), and maintains the setting that the own device is the master device (S260). In this case, the receiver 1b not suitable as the master device determines whether the receiver is suitable as the master device based on the broadcast signal transmitted from the receiver 1a, and changes the setting from the master device to the slave device. When the network communication unit 137 of the receiving apparatus 1a receives the broadcast signal from the receiving apparatus 1b as the slave apparatus, the partner management unit 134 of the receiving apparatus 1a records the ID and the address information of the receiving apparatus 1b as the slave apparatus.
As a result of the comparison, when the operating time of the receiving device 1b is longer than the operating time of the receiving device 1a (yes at S245), the partner management unit 134 determines that the target device is suitable as the master device, and sets the 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 master device (S255). Then, the network communication unit 137 transmits an ACK signal to the receiving apparatus 1b, the ACK signal including the ID, the address information, and the type information of the receiving apparatus 1 a. Thus, the receiving device 1b can know that the device is suitable as a master device.
As described above, in the receiving device of the present application, even when a plurality of master devices exist on the network LAN, an appropriate receiving device can be maintained as a master device based on information included in the broadcast signal. In the above-described example, the propriety 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. For example, an index indicating the performance of the host apparatus may be included in the broadcast signal and determined based on the index, or the host apparatus may be set with priority to the smaller number of address information. These criteria may be combined. In the case of a receiver device having low computational performance, the above-described step (S215) of "setting the own device as the master device" may be omitted and the own device may be configured to always serve as the slave device.
Next, with reference to fig. 2 and 4, a case will be described where the receiving device 1a is a slave device, and is disconnected from the network LAN by, for example, the power supply of the master device being disconnected.
The receiving apparatus of the present application can communicate with another receiving apparatus belonging to a network LAN common to a plurality of receiving apparatuses, such as a television in a home. At this time, when the receiving device as the host device is disconnected from the network LAN, the distribution audio signal distributed from the host device is disconnected. Therefore, in order to maintain communication between the receiving devices, a resetting process of the master device is required.
As shown in fig. 3 and 4, when the peer management unit 134 determines that the master device is already present on the network LAN, it records the ID, address information, and the like of the receiving device 1b as the master device as the information of the master device (S220).
The receiving apparatus 1a … 1d transmits a broadcast signal at regular time intervals while it belongs to the network LAN and is in a communicable state (S330). As a result of the transmission of the broadcast signal, when the signal from the host device cannot be received for a certain period of time (no in S335), the partner management unit 134 determines that the host device is not present in the network LAN, and records the device as the host device (S340).
As a result of the transmission of the broadcast signal, if the signal can be received within a certain period of time (yes in S335), if the signal is an ACK signal from the receiving device 1b as the master device (no in S345), the peer management unit 134 determines that there is no change of the master device, and ends the process.
As a result of the transmission of the broadcast signal, when the signal can be received within a certain period of time (yes at S335), the partner management unit 134 determines that the host device has been changed when the ID indicated by the signal is the host device-serving receiver device 1c having a different ID from the host device-serving receiver device 1b recorded by the partner management unit 134 (yes at S345), and records the ID and address information of the receiver device 1c having the new ID as the information of the host device (S350).
In this way, the receiving device of the present application can autonomously identify the host device from the transmission and reception of the broadcast signal even when the host device has a variation.
Next, with reference to fig. 3 and 5, a case will be described where the receiving apparatus 1a is disconnected from the network LAN due to, for example, power-off of the apparatus when it is the master. The receiving apparatus of the present application can communicate with another receiving apparatus belonging to a network LAN common to a plurality of receiving apparatuses, such as a television in a home. In this case, when the receiving device, which is a 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.
As shown in fig. 3 and 5, when the partner management unit 134 determines that the receiving device 1a as the own device is the master device, the contents are recorded (S215).
At this time, the receiving apparatus 1a transmits the broadcast signal at regular intervals while belonging to the network LAN (S420). When the network communication unit 137 receives the ACK signal from the other receiving device 1b … 1d as the slave device (yes at S425), the partner management unit 134 updates the record of the slave device under its own control (S430).
The network communication unit 137 starts a timer for each target device and monitors the presence or absence of a reception signal every time, for example, a broadcast signal is received (no in S435). When a predetermined time has elapsed since the receiving apparatus 1c as the slave apparatus failed to respond (yes in S435), the partner management unit 134 deletes the record of the receiving apparatus 1c that failed to respond (S440).
In this way, the receiving device of the present application can always monitor the movement of the slave device under its control when the receiving device is the master device.
Next, with reference to fig. 2 and 6, an operation of distributing an audio signal when the receiving device 1a of the present application is a master device will be described. Hereinafter, the receiving apparatuses 1b, 1c, and 1d will be described as examples of slave apparatuses connected to a network LAN.
When the user operates the keyboard KB of the receiving apparatus 1b to switch to the transmission state and to generate a sound, the microphone MIC of the receiving apparatus 1b and the sound signal generating unit 132 generate a sound signal of the sound (S400).
The audio processing unit 135 of the receiving device 1b generates a transmission audio signal by assigning the ID of the receiving device 1b as the own device and the ID of the receiving device 1a as the master device to the generated audio signal. The upstream communication unit 138 of the receiving device 1b transmits the generated transmitting audio signal to the receiving device 1a as the master device (S405).
The downstream communication unit 139 of the receiving device 1a as the master device receives the audio signal for transmission from the receiving device 1b as the slave device (S410).
The audio processing unit 135 of the receiving 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 slave device of the transmission source (S415).
Fig. 7 shows how the audio signal is processed by the host device. As shown in fig. 7, a signal transmitted from the receiving apparatus 1b (shown as "slave 1b apparatus" in fig. 7, the same applies hereinafter) as a slave apparatus is stored in a buffer memory as a "slave 1b audio signal". The signals transmitted from 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". When the user of the receiving device 1a (shown as "master 1a device" in fig. 7) as the master device operates the keyboard KB, and the microphone MIC and the sound signal generating unit 132 generate a sound signal, the receiving device 1a does not transmit the transmission sound signal to the network LAN, and the sound processing unit 135 of the receiving device 1a as the master device directly stores the transmission sound signal in the buffer memory as the "master 1a sound signal".
The audio processing unit 135 of the receiving device 1a as the host device stores the received transmission audio signal and the transmission signal of the host device in a buffer, and starts and monitors a timer for determining whether or not a predetermined distribution timing is reached (S420). If the distribution timing is not reached (no in S420), the downstream communication unit 139 of the receiving device 1a as the master device receives the transmission audio signal from the receiving device as the slave device, and the audio processing unit 135 of the receiving device 1a as the master device continues storing the transmission audio signal in the buffer memory for each of the sending source slave devices (S410, S415).
When the predetermined distribution timing is reached (yes at S420), the synthesis processing unit 136 of the receiving device 1a as the master device synthesizes the audio signal of each receiving device stored in the buffer memory by the audio processing unit 135 to generate a sound signal for distribution (S425). The distribution audio signal is obtained by synthesizing all audio signals except the audio signal transmitted by the distribution target. As shown in fig. 7, when the "master 1a audio signal", the "slave 1b audio signal", the "slave 1c audio signal", and the "slave 1d audio signal" are stored in the buffer, the synthesis processing unit 136 synthesizes the "slave 1b audio signal", the "slave 1c audio signal", and the "slave 1d audio signal" to generate a distribution audio signal to the "master 1a device". Similarly, the synthesis processing unit 136 synthesizes the "master 1a audio signal", the "slave 1c audio signal", and the "slave 1d audio signal" to generate a distribution audio signal to the slave apparatus "slave 1b apparatus". The reason why the audio signal of the target device is not included in the distribution audio signal is to suppress howling (howling) caused by the re-output of the audio received by the microphone MIC in the receiving device receiving and distributing the audio signal, and to suppress the uncomfortable feeling felt by the user.
When a corresponding distribution audio signal is generated for a predetermined distribution object, the downstream communication unit 139 of the receiving device 1a as the master device transmits the corresponding distribution audio signal to the distribution object (S430). That is, in the example shown in fig. 7, when the synthesis processing unit 136 generates the distribution audio signal including the "master 1a audio signal", the "slave 1c audio signal", and the "slave 1d audio signal", the downstream communication unit 139 transmits the distribution audio signal to the slave apparatus "slave 1b apparatus".
The upstream communication unit 138 of the receiving device 1b as a slave device receives the distribution audio signal including the "master 1a audio signal", the "slave 1c audio signal", and the "slave 1d audio signal" (S435). The received distribution audio signal is sent to the audio processing block 18 of the receiving apparatus 1b as a slave apparatus, and is provided to the user through the speaker SP.
The receiving device 1a as the master device repeats the number of objects to be buffered in the synthesis processing and the transmission processing of the audio signal for distribution (no in S440). Since the distribution audio signal to the receiving device 1a as the host device including the "slave 1b audio signal", the "slave 1c audio signal", and the "slave 1d audio signal" is transmitted to the host device, if the synthesis processing unit 136 generates the distribution audio signal including the "sub 1 audio signal", the "sub 2 audio signal", and the "sub 3 audio signal", the distribution audio signal can be directly transmitted to the audio processing module 18 without being transmitted to the network LAN.
The upstream communication unit 138 of the receiving device 1b as a slave device receives the distribution audio signal to the receiving device 1b transmitted from the receiving device 1a as a master device. The audio processing unit 135 of the receiving apparatus 1b as a slave device transmits the distribution audio signal to the receiving apparatus 1b received by the upstream communication unit 138 to the audio processing module 18. The sound processing module 18 drives the speaker SP to output the received sound signal as sound. The display signal generation unit 133 generates a display signal and drives the indicator L in conjunction with the reception processing of the distribution audio signal.
According to the receiving device of the present application, since the receiving device as the slave device can directly play the distribution audio signal distributed from the receiving device as the master device, the burden on the receiving device as the slave device can be reduced. As shown in fig. 7, the receiving device of the present application generates a distribution audio signal to the host device, but is not limited to this. The synthesis processing unit 136 of the receiving device 1a serving as the master device may directly transmit the buffered signals including the "slave 1b audio signal", the "slave 1c audio signal", and the "slave 1d audio signal" to the audio processing module 18 of the receiving device 1 a. In this case, the load on the receiving device 1a as the master device can be suppressed.
Here, the driving operation of the pointer L in the receiving apparatus of the present application will be described with reference to fig. 2 and 8. The following is an example of a case where the distribution audio signal is received from the receiving apparatus 1b as the slave apparatus.
The upstream communication unit 138 of the receiving device 1b as a 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).
When the distribution audio signal is received, the display signal generation unit 133 of the receiving apparatus 1b transmits a broadcast display signal to the indicator L, and the indicator L lights up a display indicating the broadcast of the audio signal (S505).
The received audio signal for distribution is sent to the audio processing block 18 of the receiving apparatus 1b and is provided to the user through the speaker SP (S510).
The display signal generation unit 133 of the receiving device 1b starts a timer from the start of reception of the distribution audio signal, and counts the elapsed time from the reproduction of the distribution audio signal (S515). When a predetermined time has elapsed after the timer started (yes in 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.
In this way, in the receiving device of the present application, the receiving device as a slave device transmits the voice signal of the user to the receiving device as a master device located upstream. The receiving device as a master device stores in a buffer a sound signal transmitted from a receiving device as a slave device located downstream for each transmission source. At this time, the sound signal of the user, which is received by the receiving apparatus as the main apparatus directly through the microphone MIC, is directly stored in the buffer memory. The receiving device as a master device synthesizes the sound signals of the respective transmission sources stored in the buffer at regular intervals and distributes the synthesized sound signals to the receiving device as a slave device. At this time, the audio signal emitted from a certain slave device is not synthesized in the audio signal for distribution transmitted to the slave device. When the distribution audio signal distributed from the master device is received, the receiving device as the slave device performs audio output of the received distribution audio signal.
That is, the user can transmit the audio signal to another receiving device belonging to the shared network through the own receiving device and the receiving device serving as the master device. Similarly, the user can receive the audio signal transmitted from another receiving device belonging to the shared network via another receiving device serving as the master device.
Since such an audio signal is distributed as a receiving device of the master device, the receiving device of the slave device does not need to grasp all addresses of other receiving devices. Further, when the receiving device as the slave device receives only the data, the load of the device can be reduced.
In the above-described embodiment, the information communicated between the receiving apparatuses is described as voice information, but the present invention is not limited to this. As information communicated between the receiving apparatuses, for example, the respective operating states of the receiving apparatuses can be exchanged. Examples of the operation state of the receiving apparatus include a channel being received by the receiving apparatus, distribution information being played, presence or absence of operation of the receiving apparatus itself, and the like.
While the embodiments of the present disclosure have been described above, these embodiments are presented as examples and are not intended to limit the scope of the present disclosure. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the present disclosure.
Claims (12)
1. A reception device capable of communicating with another reception device belonging to a shared network, the reception device comprising:
a management unit that identifies whether the own device is a master device that distributes information to the other reception devices or a slave device that receives distribution of information from the other reception devices, and records the identification result;
an information generating unit that generates the 1 st information transmitted from the device itself;
a downstream communication unit that, when the device is the master device as a result of the determination, generates 3 rd information including at least one of the 1 st information and 2 nd information generated by the other receiving device as a slave device, and transmits the 3 rd information to the other receiving device as a slave device;
an upstream communication unit that transmits the 1 st information to the other receiving device as a master device and receives distribution of the 4 th information generated by the other receiving device as a master device, when the own device is a slave device as a result of the determination; and
and a playback unit that plays back the 4 th information.
2. The receiving device of claim 1,
the 3 rd information distributed by the downstream communication section does not include the 2 nd information transmitted from the other receiving apparatus to which the downstream communication section is distributed.
3. The receiving apparatus according to claim 1 or 2,
the 4 th information received and distributed by the upstream communication unit does not include the 1 st information transmitted to the other receiving apparatus.
4. The receiving device of any of claims 1 to 3,
the receiving apparatus further includes a network communication unit for transmitting a broadcast signal to the network,
when a response to the broadcast signal is not performed for a certain period of time, the management unit determines that the own device is a master device.
5. The receiving device of claim 4,
the management unit, when determining that the own device is the master device and then responding to the broadcast signal from the other receiving device as a slave device, records the other receiving device that has responded as a slave device.
6. The receiving device of claim 4,
the management unit determines whether the own device is the master device or the slave device based on the content of the response signal when the response signal including the type of information that the other receiving device is the master device is returned from the other receiving device to the broadcast signal after determining that the own device is the master device.
7. The receiving device of any of claims 1 to 6,
the 1 st to 4 th information are sound information.
8. The receiving device of any of claims 1 to 6,
the 1 st to 4 th information are operation statuses of the own device or the other receiving devices.
9. The receiving device of any one of claims 1 to 8,
the receiving apparatus further includes:
a display signal generation unit that generates a display signal according to the 4 th information distribution; and
and a display section which provides the display signal to a user.
10. A reception device capable of communicating with another reception device belonging to a shared network, the reception device comprising:
an information generating unit that generates the 1 st information transmitted from the device itself;
an upstream communication unit that transmits the 1 st information to the other receiving device as a master device capable of information distribution and receives distribution of 2 nd information generated by the other receiving device as a slave device and including the distribution of the information received from the master device; and
and a playback unit that plays back the 2 nd information.
11. A communication method in a receiving apparatus capable of communicating with another receiving apparatus belonging to a common network,
a broadcast signal is transmitted over the network,
when a response to the broadcast signal is not performed for a certain period of time, the local device is determined to be a master device that distributes information to the other receiving devices.
12. A communication method in a reception device which can communicate with another reception device belonging to a common network and including a master device capable of distributing information and which serves as a slave device for receiving distribution of the information,
the 1 st information transmitted from the own device is generated and transmitted to the other receiving device as the master device,
receiving distribution of 4 th information from the other receiving device as a master device, the 4 th information including at least one of 2 nd information generated by the other receiving device as the master device and 3 rd information generated by the other receiving device as a slave device,
and playing the 4 th information.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-007979 | 2021-01-21 | ||
| JP2021007979A JP7429200B2 (en) | 2021-01-21 | 2021-01-21 | receiving device |
| PCT/CN2021/118662 WO2022156245A1 (en) | 2021-01-21 | 2021-09-16 | Receiving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114731454A true CN114731454A (en) | 2022-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180006218.6A Pending CN114731454A (en) | 2021-01-21 | 2021-09-16 | Receiving apparatus |
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| CN (1) | CN114731454A (en) |
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