WO2017163529A1 - Dispositif de commande d'émission, dispositif de commande de réception et système de commande d'émission/réception - Google Patents

Dispositif de commande d'émission, dispositif de commande de réception et système de commande d'émission/réception Download PDF

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Publication number
WO2017163529A1
WO2017163529A1 PCT/JP2016/089133 JP2016089133W WO2017163529A1 WO 2017163529 A1 WO2017163529 A1 WO 2017163529A1 JP 2016089133 W JP2016089133 W JP 2016089133W WO 2017163529 A1 WO2017163529 A1 WO 2017163529A1
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WIPO (PCT)
Prior art keywords
transmission
lane
reception
transmission information
unit
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PCT/JP2016/089133
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English (en)
Japanese (ja)
Inventor
森　敦司
俊久 百代
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ソニー株式会社
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Publication date
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Priority to JP2018506786A priority Critical patent/JP6897666B2/ja
Publication of WO2017163529A1 publication Critical patent/WO2017163529A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection

Definitions

  • the present disclosure relates to a transmission control device, a reception control device, and a transmission / reception control system.
  • a transmission control device is provided.
  • a request generation unit that generates a transmission lane addition request when it is detected that a reception state of transmission information transmitted through a first lane is worse than a predetermined first state, and the transmission A reception control unit that controls reception of transmission information started by the second lane in addition to the first lane from the transmission device from which the lane addition request has been acquired, and the transmission by the second lane
  • a reception control device that stops transmission of the transmission information by the first lane when a predetermined condition is satisfied after transmission of information is started.
  • a transmission control device and a reception control device wherein the transmission control device is configured such that the reception state of the transmission information transmitted by the first lane is higher than the predetermined first state.
  • a request acquisition unit that acquires a transmission lane addition request transmitted from the receiving device when a badness is detected, and a second in addition to the first lane when the transmission lane addition request is acquired.
  • a transmission control unit that starts transmission of transmission information to the reception device by a lane, and the transmission control unit satisfies a predetermined condition after transmission of the transmission information by the second lane is started.
  • the transmission information transmission by the first lane is stopped, and the reception control device has a reception state of the transmission information transmitted by the first lane being worse than the first state.
  • a transmission / reception control system including a reception control unit for controlling.
  • FIG. 6 is a flowchart illustrating an example of an operation of the signal transmission system according to the first embodiment of the present disclosure. It is a figure which shows the example of control information. It is a figure which shows an example of a structure of the signal transmission system which concerns on 2nd Embodiment.
  • the background of this embodiment will be described.
  • HDMI High-Definition Multimedia Interface
  • the lanes used for video signal transmission are fixed to three lanes. If the transmission state deteriorates even in one of the three lanes, the lane in which the transmission state deteriorates is substituted. Since there is no lane in which data transmission is possible, transmission is impossible.
  • the lanes used are fixed, even if one lane or two lanes are used, if the transmission state of the used lane deteriorates, the transmission state deteriorates. Since there is no lane capable of transmitting data in place of the above lane, transmission becomes impossible. In addition, when the number of lanes used is changed, the transmission is temporarily stopped, so that the video display is stopped or a black image is generated in the displayed video.
  • a technique for improving resistance to deterioration of a transmission state in a lane is disclosed. For example, when a failure occurs in a lane used for data transmission, a technology is disclosed in which lane switching is performed so that a normal lane is used instead of the lane in which the failure has occurred (for example, a special feature). (See Kaih 2011-211532). According to such a technique, it is possible to improve resistance to deterioration of the transmission state.
  • 1A and 1B are diagrams illustrating an example of a configuration of a signal transmission system 1A according to the first embodiment.
  • the signal transmission system 1A includes a transmission device 10A and a reception device 20A. Further, the transmission device 10A and the reception device 20A are connected via a cable 30.
  • the cable 30 includes lanes 305-1 to 305-M (M is an integer of 2 or more).
  • the number of lanes 305 is not particularly limited as long as it is plural. Note that, in this specification, an example in which a video signal is handled as transmission information will be mainly described, but an audio signal and other types of signals can be handled in the same manner as a video signal as transmission information. Further, the transmission information may be other signals such as electric signals instead of optical signals.
  • the transmitting apparatus 10A can function as a “transmission control apparatus”. Further, the receiving device 20A can function as a “reception control device”.
  • the transmission apparatus 10A includes a switch unit 104, transmitters 105-1 to 105-M, a transmission control unit 109, a request acquisition unit 111, a request reception unit 110, a notification transmission unit 112, and a notification generation unit 113. And a transmission information control unit 114.
  • Each of the transmitters 105-1 to 105-M is connected to a corresponding lane 305-1 to 305-M. The detailed configuration of the transmitters 105-1 to 105-M will be described later with reference to FIG.
  • transmission information information to be transmitted to the receiving device 20A (hereinafter also referred to as “transmission information”) x1 to xL (L is an integer of 2 or more) is generated by a predetermined information generation device.
  • the transmission information x1 to xL is determined based on a predetermined start operation by the user, and the determined transmission information x1 to xL is generated.
  • the types of transmission information x1 to xL are not particularly limited.
  • the transmission information x1 to xL may include a video signal, an audio signal, or other types of signals.
  • the predetermined information generation device may be incorporated in the transmission device 10A, may exist outside the transmission device 10A, and may be connected to the transmission device 10A via a wired or wireless connection.
  • the transmission information control unit 114 controls the switch unit 104 so that the transmission information x1 to xL generated in this way is input to the corresponding lane. Correspondences between transmission information x1 to xL and lanes # 1 (305-1) to #M (305-M) are determined in advance as control information (FIG. 5) and transmitted to receiving apparatus 20A by notification transmission unit 112. It's okay. Further, as will be described later, the correspondence between transmission information x1 to xL and lanes 305-1 to 305-M can be dynamically changed. For example, the transmission information control unit 114 controls the switch unit 104 so that the transmission information x1 is input to the lane connected to the transmitter 105-1.
  • the switch unit 104 inputs each of the transmission information x1 to xL to the corresponding lane according to the control by the transmission information control unit 114.
  • lanes 305-1 to 305-M there may be lanes into which transmission information is input.
  • lanes 305-1 to 305-M there may be lanes (hereinafter also referred to as “empty lanes”) in which transmission information is not input.
  • Each of the transmitters 105-1 to 105-M receives the transmission information if the transmission information exists in the input lane. For example, when transmission information x1 is input from the switch unit 104 to the lane connected to the transmitter 105-1, the transmission information x1 is input to the transmitter 105-1. On the other hand, each of the transmitters 105-1 to 105-M does not receive the input of the transmission information if it exists in the lane where the transmission information is not input.
  • FIG. 2 is a diagram illustrating an example of a detailed configuration of the transmitter 105.
  • the transmitter 105 includes a transmission frame generation unit 1052, a scrambler 1053, an encoding unit 1054, a P / S (parallel serial conversion unit) 1055, and a transmission unit 1056.
  • transmission frame generation section 1052, scrambler 1053, encoding section 1054, P / S 1055, and transmission section 1056 will be described.
  • the transmission frame generation unit 1052 When transmission information is input from the input terminal 1051, the transmission frame generation unit 1052 generates a frame (hereinafter also referred to as “transmission frame”) by framing the transmission information.
  • the framing may be done in any way.
  • the transmission frame generation unit 1052 may perform framing by attaching a frame start identifier indicating the head of the transmission frame to the transmission information.
  • the framed transmission information may be simply referred to as “transmission information”.
  • the frame start identifier is assigned at least one of predetermined codes (hereinafter also referred to as “special data”) that does not exist in the transmission information.
  • special data depends on the encoding of data transmitted / received through the lane 305.
  • a special code may be assigned a K code.
  • data in which N bytes of K code (0xBC) called K28.5 are continuous may be assigned to the frame start identifier.
  • the scrambler 1053 scrambles the transmission information.
  • the scrambler 1053 performs scrambled transmission information different from the scrambled performed by the scrambler 1053 existing in another lane. This makes it possible to reduce disturbance that one lane gives to other lanes and other lanes.
  • the encoding unit 1054 encodes the transmission information. Specifically, the encoding unit 1054 performs 8b / 10b encoding on the transmission information. At this time, the encoding unit 1055 may replace the frame start identifier in the transmission information with the corresponding special data, and replace data other than the frame start identifier with data in units of 10 bits. Also, the P / S 1055 converts the encoded transmission information from parallel data to serial data so as to be in a format suitable for high-speed transmission. Hereinafter, the encoded transmission information may be simply referred to as “transmission information”.
  • the transmission unit 1056 transmits transmission information according to control by the transmission control unit 109 via the input terminal 1058. Specifically, when the transmission unit 1056 is activated by the transmission control unit 109, the transmission unit 1056 starts transmission of transmission information. The transmission information is output from the output terminal 1057. On the other hand, when the transmission control unit 109 stops the transmission unit 1056, the transmission unit 1056 stops transmission of transmission information.
  • the transmission unit 1056 includes an LDD (laser diode driver) and an LD (laser diode).
  • the LDD drives the LD
  • the LD outputs the transmission information input from the LDD from the output terminal 1057.
  • the lane is configured by an optical fiber
  • the LD converts transmission information into an optical signal and then transmits it to the receiving device 20A.
  • the signal type of transmission information is not limited.
  • the transmission device 10A may transmit transmission information to the reception device 20A by an electrical signal.
  • the transmission control unit 109 controls transmission of transmission information. For example, when the transmission information control unit 114 controls the switch unit 104 to input the transmission information x1 to the transmitter 105-1 connected to the lane 305-1, the transmission control unit 108 transmits the transmission unit x of the transmitter 105-1. By starting 1056, control is performed so that transmission of the transmission information x1 by the lane 305-1 is started. Further, the transmission control unit 108 stops the transmission unit 1056 to which transmission information is not input. As a result, the power consumption of the transmitting apparatus 10A can be reduced.
  • a lane whose reception state is worse than a predetermined state (hereinafter, also referred to as “first lane” or “replication source lane #A”) is detected by the reception device 20A.
  • first state a predetermined state
  • the transmission lane addition request transmitted from the receiving device 20A is received via the transmission path 50.
  • Any data may be used as the reception state.
  • the reception state may be determined to be worse as the error rate of the transmission information is higher, or may be determined to be worse as the degree of decrease in the amplitude of the transmission information is greater.
  • the transmission lane addition request is a lane (hereinafter referred to as “second lane” or “duplication destination lane #B”) that transmits the same transmission information as that transmitted by a lane whose reception state is worse than a predetermined state. It is also a request to add.
  • the transmission lane addition request may include transmission information identification information and lane identification information.
  • the request acquisition unit 111 acquires the transmission lane addition request received by the request reception unit 110.
  • the transmission lane addition request acquired by the request acquisition unit 111 is input to the transmission information control unit 114 and the transmission control unit 109.
  • the transmission information control unit 114 extracts the identification information of the transmission information included in the transmission lane addition request when the request acquisition unit 111 acquires the transmission lane addition request. Then, the transmission information control unit 114 controls the switch unit 104 so that the transmission information identified by the identification information is input to the transmission unit 1056 connected to the duplication destination lane #B. At this time, the transmission control unit 109 controls the transmission unit 1056 connected to the duplication destination lane #B so that transmission of transmission information through the duplication destination lane #B is started.
  • the notification generation unit 113 may generate a transmission lane addition notification, and the notification transmission unit 112 may transmit the transmission lane addition notification to the reception device 20A.
  • different scrambling can be performed in different lanes. That is, at least scrambling performed on transmission information transmitted by duplication destination lane #B is different from scrambling performed on transmission information transmitted by duplication source lane #A. Thereby, it is possible to reduce the disturbance that the duplication destination lane #B gives to the duplication source lane #A and other lanes.
  • the transmission control unit 109 stops transmission of transmission information by the duplication source lane #A when a predetermined condition is satisfied after transmission of transmission information by the duplication destination lane #B is started. According to such a configuration, since there is a section in which duplicate transmission is performed in the duplication source lane #A and the duplication destination lane #B, data reception is delayed or interrupted when the transmission state in the duplication source lane #A deteriorates. It is possible to switch the lanes used for transmission without doing so.
  • the transmission information control unit 114 controls the switch unit 104 to stop inputting transmission information to the duplication source lane #A when a predetermined condition is satisfied.
  • the transmission information is transmitted from the reception device 20A.
  • the request receiving unit 110 receives a transmission stop request is mainly assumed. More specifically, when it is detected that the reception state of the transmission information transmitted by the duplication destination lane #B is better than the reception state of the transmission information transmitted by the duplication source lane #A, it is transmitted from the receiving device 20A. A case where the request receiving unit 110 receives a transmission stop request is mainly assumed.
  • the predetermined condition may be a condition that the request acquisition unit 111 acquires a transmission stop request.
  • the predetermined state (second state) is not limited to such an example, and may be a preset threshold value or the like. Further, the predetermined condition is not limited to such an example.
  • the predetermined condition may be a condition that a predetermined time has elapsed from the start of transmission by the duplication destination lane #B.
  • transmission of transmission information by the duplication destination lane #B may be started after it is confirmed that an empty lane exists. That is, when the request acquisition unit 111 detects that the reception state of the transmission information transmitted by the duplication source lane #A is worse than the predetermined state (first state), and there is an empty lane In addition, a transmission lane addition request may be acquired. At this time, when a transmission lane addition request is acquired, the transmission control unit 109 starts transmission of transmission information using an empty lane as the duplication destination lane #B.
  • transmission of transmission information by the duplication destination lane #B may not be started. That is, even when it is detected that the reception state of the transmission information transmitted by the replication source lane #A is worse than the predetermined state (first state), the transmission control unit 109 has an empty lane. If not, transmission of transmission information through the duplication destination lane #B need not be started.
  • the notification generation unit 113 generates a transmission lane stop notification when transmission by the copy source lane #A is stopped, and the notification transmission unit 112 transmits the transmission lane stop notification to the reception device 20A via the transmission path 40.
  • the transmission path 40 is configured by an optical fiber, and the notification transmission unit 112 converts the transmission lane stop notification into an optical signal and then transmits the optical signal to the receiving device 20A.
  • the type of transmission lane stop notification is not limited.
  • the notification transmission unit 112 may transmit a transmission lane stop notification to the reception device 20A using an electrical signal.
  • the reception device 20A includes a switch unit 204, receivers 205-1 to 205-M, a reception control unit 209, a reception state comparison unit 210, a notification reception unit 211, a notification acquisition unit 212, and a request transmission unit. 213, a request generation unit 214, and a reception information control unit 215.
  • Each of the receivers 205-1 to 205-M is connected to a corresponding lane 305-1 to 305-M. The detailed configuration of the receivers 205-1 to 205-M will be described later with reference to FIG.
  • FIG. 3 is a diagram illustrating an example of a detailed configuration of the receiver 205.
  • the receiver 205 includes a reception unit 2057, an S / P (serial / parallel conversion unit) 2056, a decoding unit 2055, a descrambler 2054, a transmission frame decoder 2053, and a reception state measurement unit 2052.
  • S / P serial / parallel conversion unit
  • the reception information control unit 215 controls the switch unit 204 based on the control information (FIG. 5) so that the transmission information received by the lane to be used (the lane to which the transmission information is assigned) is used.
  • the control information may be received from the transmission device 10A by the notification reception unit 211.
  • the reception information control unit 215 controls the switch unit 204 so that the transmission information x1 input from the receiver 205-1 connected to the lane 305-1 is used.
  • the reception control unit 209 controls reception by the used lane based on the control information (FIG. 5). For example, specifically, the reception control unit 209 starts reception of transmission information by the reception unit 2057 by activating the reception unit 2057 connected to a lane to be used (a lane to which transmission information is allocated). On the other hand, the reception control unit 209 stops the reception of the transmission information by the reception unit 2057 by stopping the reception unit 2057 connected to the unused lane (the lane to which no transmission information is assigned). As a result, the power consumption of the receiving device 20A can be reduced.
  • the receiving unit 2057 receives transmission information according to control by the reception control unit 209 via the input terminal 2060. Transmission information is input from the input terminal 2058.
  • the receiving unit 2057 includes a PD (photo detector) and an amplifier.
  • the PD receives the transmission information transmitted from the transmission device 10 ⁇ / b> A via the input terminal 2058.
  • the PD receives the transmission information transmitted by the optical signal from the transmitter 10A and converts it into an electrical signal.
  • the lane 305 is configured by an optical fiber, and the PD receives transmission information and converts it into an electrical signal.
  • the transmission is performed from the transmission device 10A to the reception device 20A.
  • the type of signal to be performed is not limited.
  • the reception device 20A may receive transmission information from the transmission device 10A by an electrical signal.
  • the amplifier amplifies transmission information as an electric signal output from the PD, and outputs the amplified transmission information to the S / P 2056.
  • the amplifier may perform amplitude amplification on the voltage signal after obtaining a voltage signal by performing impedance conversion on the current signal.
  • the S / P 2056 converts the format of transmission information from serial data to parallel data.
  • the decoding unit 2055 decodes the transmission information converted into parallel data. Specifically, the decoding unit 2055 may perform 8b / 10b decoding on the transmission information. For example, the decoding unit 2055 may replace the 10-bit special data corresponding to the frame start identifier in the transmission information with the frame start identifier. On the other hand, the decoding unit 2055 may replace the remaining data in the transmission information with 8-bit data.
  • the descrambler 2054 performs descrambling on the transmission information (canceling descrambling performed on the transmission information).
  • the transmission frame decoder 2053 cancels this framing because the input transmission information is framing. More specifically, the transmission frame decoder 2053 detects the position of the frame start identifier replaced from the special code as the start position of the transmission frame. The transmission frame decoder 2053 acquires transmission information based on the position of the frame start identifier.
  • the reception state measurement unit 2052 measures the reception state of transmission information. As the reception state, any data may be used as described above.
  • the reception state is output to the reception state comparison unit 210 via the output terminal 2059.
  • the transmission information is input to the switch unit 204 via the output terminal 2051.
  • the reception state comparison unit 210 compares the reception state of the lane used for transmission with a predetermined state (first state). By this comparison, the reception state comparison unit 210 detects a lane whose reception state is worse than a predetermined state (first state). When the reception state comparison unit 210 detects a lane whose reception state is worse than a predetermined state (first state), the reception state comparison unit 210 inputs identification information of the lane to the request generation unit 214. Such a comparison can be made when the transmission lane addition notification is received by the notification reception unit 211 and the transmission lane addition notification is acquired by the notification acquisition unit 212.
  • the request generation unit 214 generates a transmission lane addition request when the reception state comparison unit 210 detects a lane (duplication source lane #A) whose reception state is worse than a predetermined state (first state).
  • the request transmission unit 213 transmits the transmission lane addition request generated by the request generation unit 214 to the transmission device 10A via the transmission path 50.
  • the transmission lane addition request can include transmission information identification information and lane identification information.
  • the reception control unit 209 controls reception of transmission information started to be transmitted by the duplication destination lane #B in addition to the duplication source lane #A. Then, as described above, when transmission of transmission information by duplication destination lane #B is started and transmission of transmission information by duplication source lane #A is stopped when a predetermined condition is satisfied. According to such a configuration, since there is a section in which duplicate transmission is performed in the duplication source lane #A and the duplication destination lane #B, data reception is delayed or interrupted when the transmission state in the duplication source lane #A deteriorates. It is possible to switch the lanes used for transmission without doing so.
  • the reception control unit 209 controls the reception unit 2057 connected to the duplication destination lane #B to start reception of transmission information by activating the reception unit 2057 connected to the duplication source lane #A. To do.
  • the reception state comparison unit 210 compares the reception state of the transmission information transmitted through the duplication destination lane #B with a predetermined state (second state). When the reception state comparison unit 210 detects that the reception state of the transmission information transmitted by the duplication destination lane #B is better than the predetermined state (second state), the reception state comparison unit 210 notifies the request generation unit 214 of the identification information of the lane. Enter.
  • the reception information control unit 215 controls the switch unit 204 so that the transmission information input from the receiver 205 connected to the duplication destination lane #B is used instead of the duplication source lane #A.
  • the reception control unit 209 stops receiving transmission information by the duplication source lane #A. More specifically, the reception control unit 209 stops reception of transmission information by the duplication source lane #A by stopping the reception unit 2057 connected to the duplication source lane #A.
  • the request generation unit 214 generates a transmission stop request when it is detected that the reception state of the transmission information transmitted by the duplication destination lane #B is better than a predetermined state (second state).
  • the request transmission unit 213 transmits the transmission stop request generated by the request generation unit 214 to the transmission device 10A via the transmission path 50.
  • the transmission stop request may include transmission information identification information and lane identification information.
  • the notification receiving unit 211 receives a transmission lane stop notification from the transmission device 10A via the transmission path 40, and the notification acquisition unit 212 acquires the transmission lane stop notification received by the notification receiving unit 211.
  • the acquisition of the transmission lane stop notification by the notification acquisition unit 212 confirms that the transmission of transmission information by the duplication source lane #A is also stopped in the receiving device 20A. Thereafter, the transmitting device 10A returns to the state of transmitting transmission information, and the receiving device 20A returns to the state of receiving transmission information.
  • FIG. 4 is a flowchart illustrating an example of the operation of the signal transmission system 1A according to the first embodiment of the present disclosure.
  • FIG. 5 is a diagram illustrating an example of control information. As shown in FIG. 5, the correspondence between the transmission information x1 to xL and the lanes # 1 (305-1) to #M (305-M) is determined in advance as control information, and the notification transmitter 112 receives the receiving device 20A. Sent to.
  • the transmission information control unit 114 controls the switch unit 104 so that each of the transmission information x1 to xL is input to the corresponding lane.
  • the switch unit 104 inputs each of the transmission information x1 to xL to the corresponding lane according to the control by the transmission information control unit 114.
  • the transmitting apparatus 10A is in a state of transmitting transmission information (S101).
  • the control information is received from the transmitting device 10A by the notification receiving unit 211.
  • the reception information control unit 215 controls the switch unit 204 so that the transmission information received by the lane to be used (the lane to which the transmission information is allocated) is used.
  • the reception control unit 209 controls reception by the lane to be used based on the control information (FIG. 5). As a result, the receiving device 20A is in a state of receiving transmission information (S201).
  • the reception state measurement unit 2052 measures the reception state of transmission information.
  • the reception state is output to the reception state comparison unit 210 via the output terminal 2059.
  • the reception state comparison unit 210 compares the reception state of the lane used for transmission with a predetermined state (first state), and detects a lane whose reception state is worse than the predetermined state (first state). If so (S202), the lane identification information is input to the request generation unit 214.
  • the request generation unit 214 generates a transmission lane addition request for transmitting the transmission information in the duplication source lane #A to the duplication source lane #A and the empty lane #B (duplication destination lane #B), and the request transmission unit 213
  • the transmission lane addition request generated by the request generation unit 214 is transmitted to the transmitting apparatus 10A via the transmission path 50 (S203).
  • the request reception unit 110 receives a transmission lane addition request transmitted from the reception device 20 ⁇ / b> A via the transmission path 50.
  • the request acquisition unit 111 acquires the transmission lane addition request received by the request reception unit 110.
  • the transmission information control unit 114 inputs the transmission information specified in the transmission lane addition request to the transmission unit 1056 connected to the duplication destination lane #B.
  • the switch unit 104 is controlled.
  • the transmission control unit 109 controls the transmission unit 1056 connected to the duplication destination lane #B so that transmission of transmission information through the duplication destination lane #B is started.
  • transmission information in the duplication source lane #A is transmitted through the duplication source lane #A and the duplication destination lane #B (S104).
  • the notification generation unit 113 generates a transmission lane addition notification, and the notification transmission unit 112 transmits a transmission lane addition notification to the reception device 20A (S105).
  • the reception state measuring unit 2052 measures the reception states of the duplication source lane #A and the duplication destination lane #B (S206).
  • the reception state comparison unit 210 determines that the reception state of the replication destination lane #B is the replication source lane #B. It is determined whether or not the reception state of A is better (S207).
  • reception state of duplication destination lane #B is worse than the reception state of duplication source lane #A (“No” in S207)
  • duplication destination lane #B is updated with another empty lane, and the operation is S203. It is transferred to.
  • reception information control section 215 receives the reception information of duplication destination lane #B. Switching is performed to use (transmission information) (S208). Then, the request generation unit 214 generates a transmission stop request, and the request transmission unit 213 transmits the transmission stop request generated by the request generation unit 214 to the transmission device 10A via the transmission path 50 (S209).
  • the transmission control unit 109 stops transmission of transmission information by the duplication source lane #A (S110). Then, the transmission information control unit 114 controls the switch unit 104 to stop inputting transmission information to the duplication source lane #A.
  • the notification generation unit 113 generates a transmission lane stop notification when transmission by the copy source lane #A is stopped, and the notification transmission unit 112 transmits the transmission lane stop notification to the reception device 20A via the transmission path 40. (S111).
  • the notification receiving unit 211 receives a transmission lane stop notification from the transmission device 10A via the transmission path 40.
  • the notification acquisition unit 212 acquires the transmission lane stop notification received by the notification reception unit 211.
  • the acquisition of the transmission lane stop notification by the notification acquisition unit 212 confirms that the transmission of the transmission information by the duplication source lane #A is also stopped in the receiving device 20A (S212).
  • the transmitting device 10A returns to the state of transmitting transmission information (S112), and the receiving device 20A returns to the state of receiving transmission information (S213).
  • FIGS. 6A and 6B are diagrams illustrating an example of a configuration of a signal transmission system 1B according to the second embodiment.
  • the signal transmission system 1B includes a transmission device 10B and a reception device 20B.
  • the transmission device 10B according to the second embodiment is mainly different from the transmission device 10A according to the first embodiment in that the parameter control unit 115 is included.
  • the receiving apparatus 20B according to the second embodiment is mainly different from the receiving apparatus 20A according to the first embodiment in that it includes a request generation unit 214 # instead of the request generation unit 214.
  • a configuration different from the first embodiment will be mainly described.
  • FIG. 7 is a diagram illustrating an example of control information according to the second embodiment.
  • the transmission information control unit 114 controls the switch unit 104 so that each of the transmission information x1 to xL is input to the corresponding lane.
  • Correspondences between transmission information x1 to xL and lanes # 1 (305-1) to #M (305-M) are determined in advance as control information (FIG. 7) and transmitted to receiving apparatus 20B by notification transmission unit 112. It's okay.
  • the switch unit 104 inputs each of the transmission information x1 to xL to the corresponding lane according to the control by the transmission information control unit 114.
  • the transmission unit 1056 transmits transmission information in accordance with control by the transmission control unit 109 and signal parameter control by the parameter control unit 115 via the input terminal 1058. Specifically, when the transmission unit 1056 is activated by the transmission control unit 109, the transmission unit 1056 starts transmission of transmission information. On the other hand, when the transmission control unit 109 stops the transmission unit 1056, the transmission unit 1056 stops transmission of transmission information. The transmission unit 1056 transmits signal parameter transmission information according to the control information (FIG. 7) in accordance with control by the parameter control unit 115.
  • the signal parameter is not limited as long as it is information related to transmission information.
  • the signal parameter may be a signal amplitude of transmission information. It is assumed that the larger the signal amplitude, the better the reception state, and the smaller the signal amplitude, the lower the power consumption.
  • the parameter control unit 115 controls the signal parameter at the time of starting transmission by the duplication destination lane #B according to the signal parameter. Thereby, the signal parameter of the transmission information at the start of transmission by the duplication destination lane #B can be designated.
  • the parameter control unit 115 transmits the transmission information transmitted through the duplication destination lane #B until it is detected that the reception state of the transmission information transmitted through the duplication destination lane #B is better than the predetermined state (third state).
  • the signal parameter of the transmission information may be changed so that the reception state is improved. As a result, the reception state of the duplication destination lane #B can be maintained in a better reception state than the predetermined state (third state).
  • the parameter control unit 115 transmits the transmission information through the duplication destination lane #B until it is detected that the reception state of the transmission information transmitted through the duplication destination lane #B is worse than the predetermined state (third state).
  • the signal parameter of the transmission information may be changed so that the reception state is deteriorated. As a result, the power consumed by the duplication destination lane #B can be suppressed.
  • the request generation unit 214 # generates a transmission lane addition request when the reception state comparison unit 210 detects a lane (duplication source lane #A) whose reception state is worse than a predetermined state (first state).
  • the request transmission unit 213 transmits the transmission lane addition request generated by the request generation unit 214 to the transmission device 10A via the transmission path 50.
  • the transmission lane addition request may include a signal parameter in addition to the transmission information identification information and the lane identification information.
  • FIGS. 8A and 8B are diagrams illustrating an example of a configuration of a signal transmission system 1C according to the third embodiment.
  • the signal transmission system 1C includes a transmission device 10C and a reception device 20C.
  • the transmission apparatus 10C according to the third embodiment is different from the transmission apparatus 10A according to the first embodiment in that a transmission apparatus 10C according to the first embodiment includes a MUX section 116 and a MUX switch section 117 instead of the notification transmission section 112 and the notification generation section 113. Is different.
  • the receiving apparatus 20C according to the third embodiment is different from the receiving apparatus 20A according to the first embodiment in that the receiving apparatus 20C according to the first embodiment includes a DEMUX section 216 and a DEMUX switch section 217 instead of the notification receiving section 211 and the notification acquisition section 212. Mainly different.
  • a configuration different from the first embodiment will be mainly described.
  • FIG. 9 is a diagram illustrating an example of control information according to the third embodiment.
  • the transmission information control unit 114 controls the MUX switch unit 117 so that the control information (FIG. 9) is input to the MUX unit 116. Further, when the control information is output from the MUX unit 116 to the switch unit 104, the transmission information control unit 114 transmits the control information to the control information lane (lane # 2 in the example shown in FIG. 9).
  • the switch unit 104 is controlled so as to be input to.
  • the control information lane is also used for transmission of transmission lane addition notification and transmission lane stop notification.
  • the transmission information control unit 114 extracts the identification information of the transmission information included in the transmission lane addition request. Then, the transmission information control unit 114 controls the MUX switch unit 117 so that the transmission information identified by the identification information is input to the MUX unit 116. Also, the transmission information control unit 114 controls the MUX unit 116 so that the transmission information is mixed on the same signal line as the control information. The transmission information control unit 114 controls the switch unit 104 so that the transmission information output from the MUX unit 116 is input to the control information lane.
  • the transmission control unit 109 controls transmission by a lane for control information of transmission information.
  • the transmission unit 1056 transmits the transmission information according to control by the transmission control unit 109 via the input terminal 1058. Specifically, when the transmission unit 1056 is activated by the transmission control unit 109, the transmission unit 1056 starts transmission using a lane for control information of transmission information. By transmitting the control information through the control information lane in this way, it is possible to reduce power consumption due to lane use and to reduce the number of lanes used.
  • the reception information control unit 215 controls the switch unit 204 so that transmission information received by the control information lane is input to the DEMUX unit 216.
  • the reception information control unit 215 controls the DEMUX unit 216 so that transmission information and control information mixed in the same signal line are separated.
  • the reception information control unit 215 controls the transmission information to be input to the DEMUX switch unit 217, and controls the DEMUX unit 216 to input the control information to the notification reception unit 211.
  • a transmission lane addition notification and a transmission lane stop notification are also input to the notification receiving unit 211.
  • the reception information control unit 215 detects that the reception state of the transmission information transmitted by the duplication destination lane #B in the receiving apparatus 20A is better than the predetermined state (second state), the duplication destination lane #B
  • the DEMUX switch unit 217 is controlled to use the received information (transmission information).
  • FIGS. 10A and 10B are diagrams illustrating an example of a configuration of a signal transmission system 1D according to the fourth embodiment.
  • the signal transmission system 1D includes a transmission device 10D and a reception device 20D.
  • the transmission apparatus 10D according to the fourth embodiment is mainly different from the transmission apparatus 10A according to the first embodiment in that it includes an image dividing unit 118 and a fixed pattern control unit 120.
  • the receiving device 20D according to the fourth embodiment is mainly different from the receiving device 20A according to the first embodiment in that it includes an image combining unit 218.
  • a configuration different from the first embodiment will be mainly described.
  • the transmission information is video information.
  • the video information includes a horizontal blanking interval (hereinafter also referred to as “H. blanking interval”) and a vertical blanking interval (hereinafter referred to as “V. blanking”) between the Active video area and the next Active video area. In general, it is also referred to as “section”.
  • FIG. 11 is a diagram illustrating an example of a detailed configuration of the transmitter 105.
  • FIG. 12 is a diagram illustrating an example of transmission information transmitted in each of a plurality of lanes in the fourth embodiment.
  • a vertical blanking section 3052 appears following the video data 3051.
  • the transmission control unit 109 adds a stop pattern 3055 to the transmission information transmitted through the duplication source lane #A in response to the transmission pause through the duplication source lane #A.
  • the transmission control unit 109 adds a start pattern 3053 to the transmission information transmitted through the duplication destination lane #B in response to the start of transmission through the duplication destination lane #B.
  • the image dividing unit 118 divides the transmission information into a plurality of pieces.
  • Each of the pieces of transmission information divided into a plurality is input to lanes (for example, including the copy source lane #A) used for transmission among the lanes 305-1 to 305-M, and transmitted to the reception device 20D.
  • the transmission control unit 109 performs the duplication destination lane # according to the vertical blanking interval included in the transmission information transmitted by the duplication source lane #A. B starts transmission of transmission information to the receiving device 20D.
  • the transmission control unit 109 transmits to the receiving device 20D by the duplication destination lane #B in the vertical blanking interval included in the transmission information transmitted by the duplication source lane #A. Transmission of the duplication destination lane #B is started so that the head position 3054 of the start pattern 3053 attached to the transmission information belongs. This suppresses the influence of disturbance (deterioration of the transmission state) given to the duplication source lane #A due to the start of transmission by the duplication destination lane #B.
  • the transmission control unit 109 uses the duplication source lane #A according to the vertical blanking interval included in the transmission information transmitted by the duplication destination lane #B. Transmission of transmission information to the receiving device 20D is stopped.
  • the transmission control unit 109 transmits to the receiving device 20D by the duplication destination lane #A in the vertical blanking interval included in the transmission information transmitted by the duplication destination lane #B. Transmission of the duplication source lane #A is stopped so that the end position 3056 of the stop pattern 3055 attached to the transmission information belongs. As a result, the influence of disturbance (deterioration of the transmission state) given to the duplication destination lane #B due to the suspension of transmission by the duplication source lane #A is suppressed.
  • FIG. 13 is a diagram illustrating another example of transmission information transmitted through each of a plurality of lanes in the fourth embodiment. As shown in FIG. 13, it is assumed that transmission lane #C exists in addition to duplication source lane #A and duplication destination lane #B. Similarly, in the transmission information transmitted through the transmission lane #C, a vertical blanking interval appears following the video data.
  • the fixed pattern control unit 120 performs a predetermined fixed interval in the blanking interval corresponding to the start of transmission by the duplication destination lane #B among the plurality of blanking intervals included in the transmission information transmitted by the duplication source lane #A.
  • the selector 10510 is controlled so that the pattern 3057 is set.
  • the fixed pattern 3057 is generated by the fixed pattern generation unit 1059.
  • fixed pattern control section 120 receives receiver 20D using duplication destination lane #B among the vertical blanking intervals included in the transmission information transmitted by duplication source lane #A.
  • the selector 10510 is controlled so that the fixed pattern 3057 is set in the vertical blanking section to which the head position 3054 of the start pattern 3053 attached to the transmission information to the page belongs.
  • fixed pattern control section 120 has a predetermined fixed pattern in a blanking section corresponding to the start of transmission by duplication destination lane #B among a plurality of blanking sections included in transmission information transmitted by transmission lane #C.
  • the selector 10510 may be controlled so that 3057 is set. As a result, it is possible to improve the tolerance to the loss of clock synchronization due to the disturbance given to the transmission lane #C by the start of transmission by the duplication destination lane #B.
  • the fixed pattern control unit 120 has a predetermined fixed pattern in a blanking section corresponding to a transmission stop by the duplication source lane #A among a plurality of blanking sections included in transmission information transmitted by the duplication destination lane #B.
  • the selector 10510 may be controlled so as to be set. As a result, it is possible to improve the resistance to the loss of clock synchronization due to the disturbance given to the duplication destination lane #B due to the transmission stoppage by the duplication source lane #A.
  • fixed pattern control section 120 has a predetermined fixed pattern in a blanking section corresponding to a transmission stop by duplication source lane #A among a plurality of blanking sections included in transmission information transmitted by transmission lane #C.
  • the selector 10510 may be controlled so as to be set. As a result, it is possible to improve the resistance against the loss of clock synchronization due to the disturbance applied to the transmission lane #C due to the transmission stoppage by the duplication source lane #A.
  • FIG. 14 is a diagram illustrating another example of transmission information transmitted through each of a plurality of lanes in the fourth embodiment. Similarly to the case shown in FIG. 13, in the example shown in FIG. 14, it is assumed that there is a transmission lane #C in addition to the copy source lane #A and the copy destination lane #B. Similarly, in the transmission information transmitted through the transmission lane #C, a vertical blanking interval appears following the video data.
  • the transmission control unit 109 cancels transmission in the blanking interval corresponding to the start of transmission in the duplication destination lane #B among a plurality of blanking intervals included in the transmission information transmitted by the duplication source lane #A. .
  • the transmission control unit 109 transmits to the receiving device 20D using the duplication destination lane #B among the vertical blanking intervals included in the transmission information transmitted by the duplication source lane #A.
  • the transmission of the vertical blanking interval to which the head position 3054 of the start pattern 3053 attached to the transmission information of the first transmission information belongs is canceled (the transmission of the stop pattern and the start pattern is controlled). This suppresses the influence of disturbance (deterioration of the transmission state) given to the duplication source lane #A due to the start of transmission by the duplication destination lane #B.
  • the transmission control unit 109 sets the start pattern 3053 attached to the transmission information to the receiving device 20D by the duplication destination lane #B in the vertical blanking section included in the transmission information transmitted by the transmission lane #C. Transmission of the vertical blanking interval to which the head position 3054 belongs may be canceled. As a result, the influence of the disturbance (deterioration of the transmission state) given to the transmission lane #C due to the start of transmission by the duplication destination lane #B is suppressed.
  • the transmission control unit 109 sets the stop pattern 3055 attached to the transmission information to the receiving device 20D by the duplication source lane #A in the vertical blanking section included in the transmission information transmitted by the duplication destination lane #B. Transmission of the vertical blanking interval to which the end position 3056 belongs may be canceled (transmission of stop pattern and start pattern is controlled). As a result, the influence of disturbance (deterioration of the transmission state) given to the duplication destination lane #B due to the suspension of transmission by the duplication source lane #A is suppressed.
  • the transmission control unit 109 sets the stop pattern 3055 attached to the transmission information to the reception device 20D by the duplication source lane #A in the vertical blanking section included in the transmission information transmitted by the transmission lane #C. Transmission of the vertical blanking interval to which the end position 3056 belongs may be canceled (transmission of stop pattern and start pattern is controlled). As a result, the influence of disturbance (deterioration of the transmission state) given to the transmission lane #C due to the transmission stop by the duplication source lane #A is suppressed.
  • a plurality of pieces of transmission information are input from the switch unit 204 to the image combining unit 218.
  • the image combining unit 218 combines a plurality of pieces of transmission information input from the switch unit 204. Transmission information obtained by combining by the image combining unit 218 is used as reception information.
  • the reception is performed when it is detected that the reception state of the transmission information transmitted by the first lane by the reception device is worse than the predetermined first state.
  • a transmission control device for stopping transmission of the transmission information is provided.
  • the transmission control unit 109 activates the transmission unit 1056 or stops the transmission unit 1056 has been described.
  • the transmission control unit 109 can activate the entire transmitter 105 or stop the entire transmitter 105. Then, it becomes possible to further reduce power consumption.
  • the reception control unit 209 activates the reception unit 2057 or stops the reception unit 2057 has been described.
  • the reception control unit 209 can activate the entire receiver 205 or stop the entire receiver 205.
  • the transmission frame generation unit 1052, the scrambler 1053, the encoding unit 1054, and the P / S 1055 are individually provided for all of the transmission units 1056 connected to the lanes 305-1 to 305-M. Is provided. However, some or all of the transmission frame generation unit 1052, the scrambler 1053, the encoding unit 1054, and the P / S 1055 may be shared by these transmission units 1056.
  • the reception state measurement unit 2052, the transmission frame decoder 2053, the descrambler 2054, the decoding unit 2055, and the S / P 2056 are connected to all the reception units 2057 connected to the lanes 305-1 to 305-M, respectively. In contrast, it is provided separately. However, some or all of the reception state measuring unit 2052, the transmission frame decoder 2053, the descrambler 2054, the decoding unit 2055, and the S / P 2056 may be shared by the respective receiving units 2057.
  • each functional block included in the transmission device 10 may be mounted on a separate IC (Integrated Circuit), or any combination may be mounted on the same IC.
  • each functional block included in the reception device 20 may be mounted on a separate IC, or any combination may be mounted on the same IC.
  • a request acquisition unit that acquires a transmission lane addition request transmitted from the reception device when it is detected that the reception state of the transmission information transmitted by the first lane is worse than the predetermined first state.
  • a transmission control unit that starts transmission of transmission information to the receiving device by a second lane in addition to the first lane when the transmission lane addition request is acquired;
  • the transmission control unit stops transmission of the transmission information by the first lane when a predetermined condition is satisfied after the transmission of the transmission information by the second lane is started.
  • the transmission control device includes: A transmission information control unit that inputs the transmission information to a transmission unit connected to the second lane when the transmission lane addition request is acquired; The transmission control unit controls the transmission unit such that transmission of the transmission information input to the transmission unit via the second lane is started when the transmission lane addition request is acquired. , The transmission control device according to (1).
  • the request acquisition unit acquires a transmission stop request transmitted from the reception device when it is detected that the reception state of the transmission information transmitted through the second lane is better than a predetermined second state. And The transmission control unit stops transmission of the transmission information by the first lane when the transmission stop request is acquired; The transmission control device according to (1) or (2).
  • the reception device When the request acquisition unit detects that the reception state of the transmission information transmitted through the second lane is better than the reception state of the transmission information transmitted through the first lane, the reception device Get the transmission stop request sent from The transmission control device according to (3).
  • the request acquisition unit is configured to transmit the transmission information when it is detected that a reception state of transmission information transmitted by the first lane is worse than the predetermined first state, and when there is an empty lane. Get a lane addition request, The transmission control unit starts transmission of the transmission information by an empty lane as the second lane when the transmission lane addition request is acquired.
  • the transmission control apparatus according to any one of (1) to (4).
  • the transmission control unit When the transmission control unit detects that the reception state of the transmission information transmitted by the first lane is worse than the predetermined first state, and when there is no empty lane, the transmission control unit Does not start transmission of the transmission information by lane 2; The transmission control apparatus according to any one of (1) to (5). (7) At least different scrambling is performed on the transmission information transmitted by the first lane and the transmission information transmitted by the second lane. The transmission control apparatus according to any one of (1) to (6). (8) The transmission control device includes: When a signal parameter is specified by the transmission lane addition request, a parameter control unit that controls a signal parameter at the start of transmission by the second lane according to the signal parameter is provided. The transmission control apparatus according to any one of (1) to (7).
  • the transmission control device includes: Until the reception state of the transmission information transmitted by the second lane is detected to be better than the third state, the signal parameters of the transmission information transmitted by the second lane are indicated by the reception state. Provided with a parameter control unit to change so as to improve, The transmission control apparatus according to any one of (1) to (7).
  • the transmission control device includes: Until the reception state of the transmission information transmitted by the second lane is detected to be worse than the third state, the signal parameters of the transmission information transmitted by the second lane are indicated by the reception state. Provided with a parameter control unit that changes to be worse, The transmission control apparatus according to any one of (1) to (7).
  • the transmission control unit When the transmission lane addition request is acquired, the transmission control unit starts transmission of the transmission information through the same lane as the second lane that transmits a transmission stop notification to the reception device.
  • the transmission control apparatus according to any one of (1) to (4).
  • the transmission control unit when the transmission lane addition request is acquired, according to a blanking section included in the transmission information transmitted by the first lane, to the reception device by the second lane Starting transmission of the transmission information of The transmission control apparatus according to any one of (1) to (11).
  • the transmission control device includes: Control is performed so that a predetermined fixed pattern is set in the blanking interval corresponding to the start of transmission by the second lane among the plurality of blanking intervals included in the transmission information transmitted by the first lane.
  • the transmission control device includes: Among the plurality of blanking sections included in the transmission information transmitted by the third lane different from the first lane and the second lane, the blanking section corresponding to the transmission start by the second lane A fixed pattern control unit for controlling so that a predetermined fixed pattern is set; The transmission control device according to (12). (15) The transmission control unit cancels transmission of a blanking interval according to transmission start by the second lane among a plurality of blanking intervals included in the transmission information transmitted by the first lane. The transmission control device according to (12).
  • the transmission control unit is configured to start transmission by the second lane among a plurality of blanking intervals included in transmission information transmitted by a third lane different from the first lane and the second lane. Skip the transmission of the corresponding blanking section,
  • a request generator that generates a transmission lane addition request when it is detected that the reception state of the transmission information transmitted by the first lane is worse than the predetermined first state;
  • a reception control unit that controls reception of transmission information started by a second lane in addition to the first lane from the transmission device from which the transmission lane addition request has been acquired, The transmission of the transmission information by the first lane is stopped when a predetermined condition is satisfied after the transmission of the transmission information by the second lane is started;
  • Reception control device Reception control device.
  • the reception control unit performs control so that reception by the reception unit connected to the second lane of the transmission information started to be transmitted by the second lane is started.
  • the reception control device according to (17).
  • the request generation unit generates a transmission stop request when it is detected that the reception state of the transmission information transmitted through the second lane is better than a predetermined second state, The transmission of the transmission information by the first lane is stopped from the transmission device from which the transmission stop request is acquired.
  • the transmission control device includes: A request acquisition unit that acquires a transmission lane addition request transmitted from the reception device when it is detected that the reception state of the transmission information transmitted by the first lane is worse than the predetermined first state.
  • a transmission control unit that starts transmission of transmission information to the receiving device by a second lane in addition to the first lane when the transmission lane addition request is acquired;
  • the transmission control unit when a predetermined condition is satisfied after the transmission of the transmission information by the second lane is started, stops the transmission of the transmission information by the first lane,
  • the reception control device includes: A request generation unit that generates the transmission lane addition request when it is detected that the reception state of the transmission information transmitted by the first lane is worse than the first state;
  • a reception control unit that controls reception of transmission information started by a second lane in addition to the first lane from the transmission device from which the transmission lane addition request has been acquired, Transmission / reception control system.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Communication Control (AREA)

Abstract

[Problème] Il est attendu de la présente invention qu'elle offre une technique permettant de commuter une voie utilisée pour l'émission, sans retarder ni interrompre la réception de données, lorsqu'un état d'émission s'est dégradé sur la voie. [Solution] L'invention concerne un dispositif de commande d'émission comprenant : une unité d'acquisition de requête qui acquiert une demande d'ajout de voie d'émission émise par un dispositif de réception, lorsque l'on détecte qu'un état concernant la réception, par le dispositif de réception, d'informations d'émission émises par l'intermédiaire d'une première voie est pire qu'un premier état prescrit ; et une unité de commande d'émission qui commence à envoyer les informations d'émission au dispositif de réception par l'intermédiaire d'une deuxième voie en plus de la première voie, lorsque la demande d'ajout de voie d'émission est acquise, l'unité de commande d'émission arrêtant l'émission des informations d'émission par l'intermédiaire de la première voie lorsqu'une condition prescrite est satisfaite après le début de l'émission des informations d'émission par l'intermédiaire de la deuxième voie.
PCT/JP2016/089133 2016-03-25 2016-12-28 Dispositif de commande d'émission, dispositif de commande de réception et système de commande d'émission/réception WO2017163529A1 (fr)

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WO2019123837A1 (fr) * 2017-12-21 2019-06-27 ソニー株式会社 Dispositif de commande d'émission, procédé de commande d'émission, dispositif de commande de réception, procédé de commande de réception, et système de transmission de signal
CN111466120A (zh) * 2017-12-21 2020-07-28 索尼公司 发送控制设备、发送控制方法、接收控制设备、接收控制方法和信号传输系统
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CN115963748A (zh) * 2022-11-30 2023-04-14 福建侨龙应急装备股份有限公司 一种排水车的控制系统及方法

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