WO2014167799A1 - 通信端末および通信システム - Google Patents
通信端末および通信システム Download PDFInfo
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- WO2014167799A1 WO2014167799A1 PCT/JP2014/001836 JP2014001836W WO2014167799A1 WO 2014167799 A1 WO2014167799 A1 WO 2014167799A1 JP 2014001836 W JP2014001836 W JP 2014001836W WO 2014167799 A1 WO2014167799 A1 WO 2014167799A1
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- circuit
- transmission
- communication terminal
- capacitor
- transmission line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
Definitions
- the present invention relates to a communication terminal and a communication system configured to transmit a current mode signal on a transmission line.
- a transmission unit transmits a (multiplexed) transmission signal to a signal line (hereinafter referred to as “transmission line”).
- transmission line a signal line
- the current mode is set by short-circuiting the transmission line via an appropriate low impedance in synchronization with the signal return period of the transmission signal. Return the signal.
- a communication terminal secures a power supply for operating an internal circuit from a transmission signal on a transmission line, that is, operates by receiving power supply from the transmission line.
- communication terminals with relatively large power consumption such as communication terminals equipped with a liquid crystal display, will receive a relatively large amount of power from the transmission line, lowering the impedance to the transmission signal and degrading the communication environment. There is a possibility to make it.
- Document 2 describes that a load device having a particularly low input impedance is connected to a voltage line and a neutral line as a communication path for power line carrier communication via an impedance improvement circuit.
- the communication terminal itself transmits a current mode signal
- the signal transmitted by the communication terminal is the impedance improvement circuit. May attenuate the communication environment.
- the present invention has been made in view of the above-described reasons, and an object thereof is to provide a communication terminal and a communication system that can suppress deterioration of the communication environment while receiving a relatively large amount of power supplied from a transmission line. .
- the communication terminal (2) of the present invention includes first and second branch ends (P1, P2), a power reception circuit (21), a transmission circuit (22), and an intermediate circuit (23).
- the power receiving circuit (21) is connected to the two-wire transmission line (3) via the first and second branch ends (P1, P2) and receives power supplied from the transmission line (3). Configured.
- a transmission circuit (22) is connected between the first and second branch ends (P1, P2), and short-circuits between the first and second branch ends to cause a current mode on the transmission line (3). It is configured to transmit a signal.
- the intermediate circuit (23) includes a series circuit of an inductor (L1) and a capacitor (C1), and is connected in parallel with the transmission circuit (22) between the first and second branch ends (P1, P2). It is interposed between the first and second branch ends (P1, P2) and the power receiving circuit (21).
- the power receiving circuit (21) is connected between both ends of the capacitor (C1).
- the communication terminal (2) further includes first and second input terminals (T1, T2) connected to the transmission line (3), and a diode bridge (24).
- a diode bridge (24) is interposed between the first and second input terminals (T1, T2) and the first and second branch ends (P1, P2).
- the intermediate circuit (23) is connected between the inductor (L1) and the capacitor (C1) so as to prevent a discharge current of the capacitor (C1) from flowing to the inductor (L1). And further includes a diode interposed therebetween.
- the inductor (L1) includes a plurality of coils (L11, L12) arranged in series.
- the intermediate circuit (23) further includes a voltage limiting element (ZD1) connected in parallel with the capacitor (C1) so as to limit a voltage applied to the capacitor (C1).
- ZD1 voltage limiting element
- the intermediate circuit (23) further includes a resistor (R1) interposed between the inductor (L1) and the capacitor (C1).
- the communication system of the present invention includes the communication terminal (2) and a transmission unit (1) connected to the transmission line (3).
- the present invention includes an intermediate circuit that includes a series circuit of an inductor and a capacitor and is connected in parallel with the transmission circuit between the first and second branch ends, and the power receiving circuit is connected between both ends of the capacitor. Therefore, there is an advantage that deterioration of the communication environment can be suppressed while receiving a relatively large amount of power supplied from the transmission line.
- FIG. 1 is a schematic circuit diagram of a communication terminal according to Embodiment 1.
- FIG. 1 is a schematic block diagram of a communication system using a communication terminal according to Embodiment 1.
- FIG. 2 is a schematic circuit diagram illustrating a specific example of a communication terminal according to Embodiment 1.
- FIG. 1 is a schematic block diagram of a communication system using a communication terminal according to Embodiment 1.
- FIG. 2 is a schematic circuit diagram illustrating a specific example of a communication terminal according to Embodiment 1.
- FIG. 2 illustrates a communication system.
- This communication system includes a transmission unit 1 connected to a two-wire transmission line 3, and a plurality of communication terminals 201, 202, 203,.
- communication terminal 2 When these communication terminals are not distinguished, they are simply referred to as “communication terminal 2”.
- Each of the plurality of communication terminals 2 is configured to communicate with the transmission unit 1 using a transmission signal transmitted through the transmission line 3 in accordance with a time division multiplexing protocol. That is, this communication system is a time division multiplex transmission system that performs data transmission in a time division manner.
- the communication system shown in FIG. 2 is used as a control system for controlling devices such as lighting equipment and air conditioning equipment in an office building, for example.
- each communication terminal 2 is divided into two types: a monitoring terminal for monitoring a monitoring input of a switch such as a wall switch, and a control terminal for performing on / off control of a device having a relay. being classified.
- the transmission unit 1 is configured to repeatedly transmit a transmission signal to the transmission line 3 and communicate with each communication terminal 2 using the transmission signal.
- the plurality of communication terminals 2 are connected in parallel to the transmission unit 1 via the transmission line 3 and communicate with each other via the transmission unit 1 instead of communicating directly with each other.
- the communication terminal 2 is configured to secure a power supply for operating the internal circuit from the transmission signal on the transmission line 3, that is, the communication terminal 2 operates with power supplied from the transmission line 3. is there.
- the transmission signal is a time division of a double pole ( ⁇ 24V) consisting of seven sections of a spare interrupt band, a spare band, a transmission band, a reply band, an interrupt band, a short-circuit detection band, and a pause band. Multiple signals.
- the transmission band is a period for the transmission unit 1 to transmit data to the communication terminal 2.
- the reply band is a time slot for the transmission unit 1 to receive return data from the communication terminal 2.
- the transmission unit 1 always transmits a transmission signal whose mode data is the normal mode, and performs continuous polling for sequentially accessing the communication terminal 2 by cyclically changing the address data included in the transmission band of this transmission signal. .
- the communication terminal 2 When the address data included in the transmission band of the received transmission signal matches its own address, the communication terminal 2 receives the control data included in this transmission band, and in the first reply band (of the same frame) thereafter The return data is transmitted to the transmission unit 1. At this time, the communication terminal 2 transmits the return data by a current mode signal (a signal transmitted by short-circuiting the transmission line 3 through an appropriate low impedance) synchronized with the return band of the transmission signal.
- a current mode signal a signal transmitted by short-circuiting the transmission line 3 through an appropriate low impedance
- the transmission unit 1 stores a control table in which the monitoring communication terminal 2 and the control communication terminal 2 are associated with each other by an address.
- the transmission unit 1 Control data corresponding to the monitoring input is transmitted to the control communication terminal 2 corresponding to the communication terminal 2.
- the communication system can control devices according to the monitoring input.
- the example of the communication terminal 2 used for this kind of communication system contains the communication terminal 2 with comparatively big power consumption like the communication terminal 2 provided with the liquid crystal display, for example.
- Such a communication terminal 2 receives a relatively large amount of power from the transmission line 3, which may reduce the impedance to the transmission signal and deteriorate the communication environment. Therefore, it is conceivable that the communication terminal 2 with relatively large power consumption is supplied with power from a power line different from the transmission line 3. In this case, a power line is laid separately from the transmission line 3. There is a need.
- the present embodiment provides a communication terminal 2 that can suppress a decrease in impedance with respect to a transmission signal and suppress deterioration of the communication environment while receiving a relatively large amount of power supplied from the transmission line 3. Therefore, in the communication terminal 2 according to the present embodiment, since power is supplied from the transmission line 3, it is not necessary to provide a power line separately from the transmission line 3.
- the communication terminal 2 of this embodiment is a terminal connected to the transmission line 3, and as shown in FIG. 1, the first and second branch terminals P1 and P2, the power receiving circuit 21, the transmitting circuit 22, and the intermediate circuit 23 Is provided.
- the power receiving circuit 21 is connected to the two-wire transmission line 3 via the first and second branch ends P1 and P2, and is configured to receive power supplied from the transmission line 3.
- the power receiving circuit 21 since the power receiving circuit 21 includes the load 212, the power receiving circuit 21 is configured to receive the power supplied from the transmission line 3 and consume the power.
- the transmission circuit 22 is connected between the first and second branch ends P1 and P2, and is configured to transmit a current mode signal on the transmission line 3. In the example of FIG.
- the transmission circuit 22 is connected to the first and second branch ends P1 and P2 to which a DC voltage is applied when energized from the transmission line 3, and between the first and second branch ends P1 and P2.
- a current mode signal is transmitted on the transmission line 3.
- the intermediate circuit 23 includes a series circuit of an inductor L1 and a capacitor C1, is connected in parallel with the transmission circuit 22 between the first and second branch ends P1 and P2, and receives power with the first and second branch ends P1 and P2. It is interposed between the circuit 21.
- the intermediate circuit 23 is an LC series circuit.
- the power receiving circuit 21 is connected between both ends of the capacitor C1.
- the power reception circuit 21 includes a power supply circuit 211 that generates an operation power supply for the internal circuit (including the transmission circuit 22) of the communication terminal 2, and a load 212 that receives power supply from the power supply circuit 211. It is out. That is, since the communication terminal 2 secures the power supply for operating the internal circuit from the transmission signal on the transmission line 3 as described above, the power receiving circuit 21 consumes the power supplied from the transmission line 3. .
- the power supply circuit 211 of the power receiving circuit 21 uses a general-purpose DC / DC converter, and may be a switching regulator or a linear regulator.
- the load 212 includes a load with relatively large power consumption such as a liquid crystal display (not shown).
- the communication terminal 2 further includes first and second input terminals T1 and T2 connected to the transmission line 3, and a diode bridge 24.
- the diode bridge 24 is interposed between the first and second input terminals T1 and T2 and the first and second branch ends P1 and P2.
- the diode bridge 24 functions as a depolarization circuit, and the communication terminal 2 is depolarized with respect to the transmission line 3. That is, a DC voltage having a fixed polarity is applied to the first and second branch ends P1 and P2 regardless of the connection polarity of the first and second input terminals T1 and T2 to the transmission line 3.
- first and second branch ends P1 and P2 are connected to the diode bridge 24 in such a direction that the first branch end P1 is at a high potential and the second branch end P2 is at a low potential (circuit ground). . That is, the first and second branch ends P1 and P2 are connected to the positive and negative output terminals of the diode bridge 24, respectively.
- the transmission circuit 22 is configured to send a current mode signal by short-circuiting the transmission line 3 through a low impedance.
- the transmission circuit 22 includes a switching element and a low impedance element connected in series between the first and second branch ends P1 and P2, and a control unit 223. Yes.
- the switching element is a transistor 221 and the low impedance element is a (first) resistor 222 having a suitable low impedance.
- the control unit 223 is configured to control the transistor 221.
- the collector of the transistor 221 as the first end of the switching element is connected to the first branch end P1 on the high potential side, while the emitter of the transistor 221 as the second end of the switching element is connected to the low potential side via the resistor 222.
- the base of the transistor 221 as the control terminal of the switching element is connected to the control unit 223.
- the transistor 221 is an impedance variable element that changes the impedance between the first and second branch ends P1 and P2 to a high impedance when turned off and changes the impedance between the first and second branch ends P1 and P2 to a low impedance when turned on. is there.
- the transmission circuit 22 shorts the transmission line 3 via an appropriate low impedance when the transistor 221 is turned on. Therefore, the transmission circuit 22 can transmit a current mode signal having an arbitrary pattern by the control unit 223 performing on / off control of the transistor 221 with an arbitrary pattern. This signal corresponds to a return signal including the return data described above.
- the intermediate circuit 23 includes a series circuit of an inductor L1 and a capacitor C1, and this series circuit is connected in parallel with the transmission circuit 22 between the first and second branch ends P1 and P2. Yes.
- the inductor L1 is connected to the first branch end P1 on the high potential side
- the capacitor C1 is connected to the first branch end P1 via the inductor L1.
- the intermediate circuit 23 includes the inductor L1 and the capacitor C1 connected to the transmission line 3 via the diode bridge 24.
- the inductor L1 has a circuit constant set so as to increase the impedance between the first and second branch ends P1 and P2 with respect to the transmission signal and the return signal. That is, the inductor L1 functions as an impedance upper that increases (increases) the impedance of the communication terminal 2 viewed from the transmission line 3.
- the inductor L1 is connected to the secondary side of the diode bridge 24. Therefore, the intermediate circuit 23 does not reverse the direction of the voltage applied to the inductor L1, and can suppress a decrease in impedance due to the back electromotive voltage (back electromotive force) generated in the inductor L1.
- the capacitor C1 functions as a power supply source to the power receiving circuit 21 by connecting the power receiving circuit 21 to both ends thereof. That is, even if a voltage drop occurs due to transmission of a return signal, for example, and the voltage of the transmission line 3 may drop instantaneously, the communication terminal 2 is stabilized by being smoothed by the capacitor C1. The applied voltage is applied to the power receiving circuit 21.
- the communication terminal 2 has a period in which the power consumption of the power receiving circuit 21 is covered only by the capacitor C1, and the power supply from the transmission line 3 to the power receiving circuit 21 is stopped.
- the current value (amplitude) decreases.
- the communication terminal 2 draws the sum of the current I1 flowing through the power receiving circuit 21 and the current I2 flowing through the transmitting circuit 22 from the transmission line 3 in a normal state, whereas the power supply from the transmission line 3 to the power receiving circuit 21 is not performed. During the stop period, only the current I2 flowing through the transmission circuit 22 is drawn. Therefore, in the communication terminal 2, the current value drawn from the transmission line 3 is reduced by the amount of the current I ⁇ b> 1 flowing through the power receiving circuit 21 during the period when the power supply from the transmission line 3 to the power receiving circuit 21 is stopped. Therefore, in the transmission destination of the return signal (transmission unit 1), if the current value of the return signal decreases and falls below the lower limit value of the reception sensitivity, a communication error may occur.
- the capacity of the capacitor C1 is set so that the period during which the power supply from the transmission line 3 to the power receiving circuit 21 is stopped does not occur or even if it occurs, the period is sufficiently short. Yes.
- the communication terminal 2 uses the capacitor C1 so that the capacitor C1 does not saturate and the current always flows from the transmission line 3 to the capacitor C1 due to the balance between the charging current of the capacitor C1 and the discharging current from the capacitor C1 to the power receiving circuit 21. Capacity is set. In this case, there is no period during which the power supply from the transmission line 3 to the power receiving circuit 21 is stopped.
- the period during which the power supply from the transmission line 3 to the power receiving circuit 21 is stopped Is set to be shorter than the delay time.
- the communication terminal 2 stabilizes the voltage applied to the power receiving circuit 21 with the capacitor C1, but a communication error occurs in the return signal transmission destination (transmission unit 1) due to a decrease in the current value of the return signal. You can avoid that.
- the communication terminal 2 may increase the current consumption in the power receiving circuit 21 when a voltage drop occurs due to transmission of a return signal or the like and the voltage of the transmission line 3 instantaneously decreases. In other words, if the power consumption of the power receiving circuit 21 is constant, the communication terminal 2 increases the current consumption in the power receiving circuit 21 in inverse proportion to the decrease in the input voltage from the transmission line 3. .
- the communication terminal 2 sets the impedance of the transmission circuit 22 so that the current value of the return signal when increased in this way falls below the upper limit of the reception sensitivity at the transmission destination (transmission unit 1) of the return signal. It is desirable that
- the intermediate circuit 23 including the series circuit of the inductor L1 and the capacitor C1 connected in parallel with the transmission circuit 22 between the first and second branch ends P1 and P2.
- the power receiving circuit 21 provided is connected between both ends of the capacitor C1. Therefore, the communication terminal 2 can suppress a decrease in impedance with respect to the transmission signal in the intermediate circuit 23 and suppress deterioration in the communication environment while receiving a relatively large amount of power from the transmission line 3 in the power receiving circuit 21. it can.
- the intermediate circuit 23 is connected in parallel with the transmission circuit 22, the transmission circuit 22 is connected to the transmission line 3 without going through the intermediate circuit 23, and the return signal transmitted from the transmission circuit 22 is intermediate. It is not attenuated by the influence of the circuit 23.
- the first and second input terminals T1 and T2 connected to the transmission line 3 and the diode bridge 24 are provided, and the diode bridge 24 includes the first and second input terminals T1 and T2 and the first input terminal.
- the second branch ends P1 and P2 the inductor L1 of the intermediate circuit 23 is connected to the secondary side of the diode bridge 24. Therefore, the intermediate circuit 23 does not reverse the direction of the voltage applied to the inductor L1, and can suppress a decrease in impedance due to the back electromotive voltage (back electromotive force) generated in the inductor L1.
- a surge absorber 25 is connected between the first and second input terminals T1 and T2.
- Capacitors C2 to C5 connected in parallel with the diodes of the diode bridge 24 are stray capacitances of the diodes.
- the inductor L1 includes a plurality of coils L11 and L12 arranged in series. That is, the first coil L11 and the second coil L12 are connected in series with the capacitor C1 between the first and second branch ends P1 and P2, and constitute the inductor L1 of the intermediate circuit 23.
- the first coil L11 is connected to the first branch end P1 on the high potential side
- the second coil L12 is connected to the second branch end P2 on the low potential side.
- the capacitor C1 is connected between the first coil L11 and the second coil L12.
- the first coil L11 and the second coil L12 are not limited to the example of FIG. 3, and may be interposed between one of the first and second branch ends P1 and P2 and the capacitor C1, for example. Good.
- the inductor L1 may be composed of three or more coils arranged in series.
- the inductor L1 is composed of a plurality of coils as described above, so that the size of each component can be kept relatively small while having a relatively large impedance.
- the communication terminal 2 can suppress the height of the components (height from the surface of the circuit board) mounted on the circuit board (not shown).
- the intermediate circuit 23 further includes a diode D1 interposed between the inductor L1 (L11) and the capacitor C1 so as to prevent the discharge current of the capacitor C1 from flowing to the inductor L1 (L11).
- the diode D1 is interposed between the first coil L11 and the capacitor C1, with the first coil L11 side serving as an anode and the capacitor C1 side serving as a cathode.
- the intermediate circuit 23 Since the intermediate circuit 23 has such a backflow prevention diode D1, even when the voltage across the capacitor C1 momentarily exceeds the voltage of the transmission line 3 when the voltage of the transmission line 3 drops, the intermediate circuit 23 It is possible to prevent a current from flowing from C1 to the inductor L1. Thereby, the intermediate circuit 23 can avoid that the back electromotive force (back electromotive force) arises in the inductor L1, and an impedance falls.
- the intermediate circuit 23 further includes a (second) resistor R1 interposed between the inductor L1 and the capacitor C1.
- the resistor R1 is interposed between the first coil L11 and the diode D1. The resistor R1 suppresses the occurrence of an inrush current or an overvoltage in the subsequent power receiving circuit 21 when the communication terminal 2 is turned on.
- the intermediate circuit 23 further includes a Zener diode ZD1 as a voltage limiting element that is connected in parallel with the capacitor C1 and limits the voltage applied to the capacitor C1.
- Zener diode ZD1 is connected to both ends of capacitor C1 through diode D1.
- the intermediate circuit 23 can protect the capacitor C1 from overvoltage even when the voltage applied to the first and second input terminals T1 and T2 increases, and the breakdown voltage of the capacitor C1 and the rated maximum current of the inductor L1 Since it can be set relatively low, it leads to miniaturization.
- the anode of the Zener diode ZD 1 serves as the ground of the power receiving circuit 21.
- the voltage limiting element is not limited to a Zener diode, and may be a varistor, for example.
- the intermediate circuit 23 only needs to include a series circuit of an inductor L1 and a capacitor C1 connected in parallel with the transmission circuit 22 between the first and second branch ends P1 and P2, as shown in FIG.
- the intermediate circuit 23 is only an example. That is, in the intermediate circuit 23, the inductor L1 may be configured by one coil, and the diode D1, the resistor R1, and the Zener diode ZD1 may be appropriately omitted.
- the communication terminal 2 transmits a current mode signal synchronized with the return band of the transmission signal to the transmission unit 1 .
- the superimposition terminal which communicates with another communication terminal using the superimposition signal superimposed may be sufficient.
- the communication terminal (superimposition terminal) 2 superimposes a current mode signal (a signal transmitted by short-circuiting the transmission line 3 through an appropriate low impedance) synchronized with the transmission signal in the transmission circuit 22. Send as.
- the communication using the superimposed signal has a different protocol from the communication using the transmission signal. Therefore, the superposition terminal that performs communication using the superposition signal does not use the transmission signal transmitted from the transmission unit 1 for communication, but uses the transmission unit 1 as a power source. That is, the superimposing terminal shares the transmission line 3, but does not have a function of communicating with the communication terminal 2 or the transmission unit 1 that performs communication using a transmission signal, and directly communicates with other superimposing terminals without using the transmission unit 1. I do.
- communication using a superimposed signal has a higher transmission speed than communication using a transmission signal and is suitable for transmission of data having a large amount of data.
- a communication terminal equipped with a liquid crystal display is a superimposition terminal that communicates with a superimposition signal because data with a relatively large amount of data such as display data is exchanged with other communication terminals. It is desirable to be.
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Abstract
Description
そこで、本実施形態は、伝送線3から比較的大きな電力の供給を受けながらも、伝送信号に対するインピーダンスの低下を抑制し、通信環境の劣化を抑制することができる通信端末2を提供する。したがって、本実施形態の通信端末2では、伝送線3から電力の供給を受けるので、伝送線3とは別に電源線が敷設されている必要はない。
Claims (7)
- 第1および第2分岐端と、
前記第1および第2分岐端を介して2線式の伝送線に接続され、前記伝送線から供給される電力を受けるように構成される受電回路と、
前記第1および第2分岐端間に接続され、前記第1および第2分岐端間を短絡することにより前記伝送線上に電流モードの信号を送信するように構成される送信回路と、
インダクタおよびコンデンサの直列回路を含み、前記第1および第2分岐端間に前記送信回路と並列に接続され、また前記第1および第2分岐端と前記受電回路との間に介在する中間回路とを備え、
前記受電回路は、前記コンデンサの両端間に接続されている
ことを特徴とする通信端末。 - 前記伝送線に接続される第1および第2入力端子と、
前記第1および第2入力端子と前記第1および第2分岐端との間に介在するダイオードブリッジと
をさらに備えていることを特徴とする請求項1に記載の通信端末。 - 前記中間回路は、前記コンデンサの放電電流が前記インダクタへ流れることを防止するように、前記インダクタと前記コンデンサとの間に介在するダイオードをさらに備えることを特徴とする請求項1または2に記載の通信端末。
- 前記インダクタは直列に配置された複数のコイルからなることを特徴とする請求項1~3のいずれか1項に記載の通信端末。
- 前記中間回路は、前記コンデンサに印加される電圧を制限するように、前記コンデンサと並列に接続された電圧制限素子をさらに備えることを特徴とする請求項1~4のいずれか1項に記載の通信端末。
- 前記中間回路は、前記インダクタと前記コンデンサとの間に介在する抵抗をさらに備えることを特徴とする請求項1~5のいずれか1項に記載の通信端末。
- 請求項1から6のいずれか1項に記載の通信端末と、
前記伝送線に接続される伝送ユニットと
を備える通信システム。
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CA2908442A CA2908442C (en) | 2013-04-12 | 2014-03-28 | Communication terminal and communication system |
CN201480019433.XA CN105075134A (zh) | 2013-04-12 | 2014-03-28 | 通信终端和通信系统 |
KR1020157026981A KR101747193B1 (ko) | 2013-04-12 | 2014-03-28 | 통신 단말 및 통신 시스템 |
US14/781,573 US20160056861A1 (en) | 2013-04-12 | 2014-03-28 | Communication terminal and communication system |
JP2015511090A JP6127355B2 (ja) | 2013-04-12 | 2014-03-28 | 通信端末および通信システム |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018102107A (ja) * | 2016-12-22 | 2018-06-28 | 三菱電機株式会社 | 通信装置 |
JP2019165396A (ja) * | 2018-03-20 | 2019-09-26 | 三菱電機株式会社 | 端末装置 |
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- 2014-03-28 WO PCT/JP2014/001836 patent/WO2014167799A1/ja active Application Filing
- 2014-03-28 JP JP2015511090A patent/JP6127355B2/ja active Active
- 2014-03-28 CN CN201480019433.XA patent/CN105075134A/zh active Pending
- 2014-03-28 US US14/781,573 patent/US20160056861A1/en not_active Abandoned
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JP2018102107A (ja) * | 2016-12-22 | 2018-06-28 | 三菱電機株式会社 | 通信装置 |
JP2019165396A (ja) * | 2018-03-20 | 2019-09-26 | 三菱電機株式会社 | 端末装置 |
JP7065659B2 (ja) | 2018-03-20 | 2022-05-12 | 三菱電機株式会社 | 端末装置 |
Also Published As
Publication number | Publication date |
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TW201442449A (zh) | 2014-11-01 |
CN105075134A (zh) | 2015-11-18 |
US20160056861A1 (en) | 2016-02-25 |
KR101747193B1 (ko) | 2017-06-14 |
CA2908442A1 (en) | 2014-10-16 |
JP6127355B2 (ja) | 2017-05-17 |
TWI506972B (zh) | 2015-11-01 |
CA2908442C (en) | 2017-09-05 |
JPWO2014167799A1 (ja) | 2017-02-16 |
KR20150121222A (ko) | 2015-10-28 |
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