WO2014141583A1 - 通信装置、受信電力モニタ装置及び通信装置システム - Google Patents
通信装置、受信電力モニタ装置及び通信装置システム Download PDFInfo
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- WO2014141583A1 WO2014141583A1 PCT/JP2014/000626 JP2014000626W WO2014141583A1 WO 2014141583 A1 WO2014141583 A1 WO 2014141583A1 JP 2014000626 W JP2014000626 W JP 2014000626W WO 2014141583 A1 WO2014141583 A1 WO 2014141583A1
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 24
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- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 25
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000005236 sound signal Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
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- 239000003990 capacitor Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
- H03K3/356—Bistable circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3877—Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/211—Indexing scheme relating to amplifiers the input of an amplifier can be attenuated by a continuously controlled transistor attenuator
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/411—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45594—Indexing scheme relating to differential amplifiers the IC comprising one or more resistors, which are not biasing resistor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
Definitions
- the present invention relates to a communication device, a received power monitoring device, and a communication device system, for example, a communication device, a received power monitoring device, and a communication device system for supplying power and supplying a desired signal to an externally connected device.
- a method of using a radio signal as a backhaul communication line has attracted attention.
- a reception power monitoring apparatus such as a level meter that monitors the power of the reception signal in order to adjust the antenna direction.
- this level meter is driven by an external power source such as a battery.
- the received power monitoring device is used at the time of wireless device installation, maintenance inspection, etc., and the management cost is high because the battery must be maintained even though it is not always used. There's a problem.
- Patent Document 1 discloses a technique for generating a power source for operating a device or a circuit from a radio signal.
- power conversion means for converting electric energy on the data transmission line into a voltage and supplying it to the main control device is connected to the data transmission line connected to the data transmission line pulled up of the external device. Have.
- Patent Document 2 discloses a technique for generating a signal indicating a signal level of the radio signal from the radio signal and displaying the signal on a display device that displays the signal level.
- This Patent Document 2 relates to an electromagnetic wave monitoring device, which is connected to an appropriate wireless device, the electromagnetic wave generator 1, a transmission line that receives or transmits a predetermined electromagnetic wave, and is magnetically coupled to the transmission line, Coupling means for converting an electromagnetic wave to be received or transmitted into an electric signal such as a voltage signal or a current signal is included.
- the electromagnetic wave monitoring device described in Patent Document 2 is connected to the coupling unit and detects the electric signal output from the coupling unit, the power storage unit connected to the detection unit, and the power storage unit. And notification means connected via switch means.
- Patent Document 3 discloses a technique for storing the energy of a transmission signal in a capacitor that functions as an energy storage and generating a DC voltage from the energy stored in the capacitor.
- Patent Document 4 discloses a technique for generating a high voltage from a received signal.
- Patent Document 4 relates to a portable receiver including a receiving antenna, a specific radio wave detection circuit, a power supply control circuit, a load circuit, and a battery.
- the specific radio wave detection circuit outputs a tuning circuit in which the parallel resonance frequency is adjusted so as to capture only the specific radio wave, and a detection voltage obtained by boosting the voltage obtained by the tuning circuit three times or more. It consists of a voltage generation circuit.
- the power supply control circuit 3 does not supply power to the load circuit by turning off the switching element when waiting for the detection voltage to become a low voltage, and at the time of receiving a specific radio wave at which the detection voltage becomes a high voltage. The switching element is turned on to supply power to the load circuit.
- Patent Documents 1 to 4 cannot solve the problem that a power source must be separately prepared for another device when another device such as a monitor device is connected to the outside. .
- the present invention has been made to solve the above-described problems, and has an object to operate other devices without preparing a separate power source for other devices connected to the outside.
- One aspect of a communication apparatus includes a detection circuit that outputs a signal strength voltage corresponding to a signal level of a received signal, and a monitor terminal that amplifies a level shift voltage obtained by level shifting the signal strength voltage using an offset voltage.
- a monitor terminal signal generation circuit for generating a signal.
- One aspect of a received power monitoring device is a constant voltage generation circuit that outputs a constant voltage from a monitor terminal signal that is output by a communication device to be monitored according to the signal level of a received signal, and operates based on the constant voltage And a voltage conversion circuit that outputs a display level instruction signal reflecting the voltage level of the monitor terminal signal, and a display unit that displays the signal level of the received signal in accordance with the display level instruction signal.
- One aspect of a communication device system includes a detection circuit that outputs a signal strength voltage corresponding to a signal level of a received signal, and a level-shifted voltage obtained by level-shifting the signal strength voltage using an offset voltage.
- a communication device having a monitor terminal signal generation circuit for generating a terminal signal, a constant voltage generation circuit for outputting a constant voltage from the monitor terminal signal, an operation based on the constant voltage, and setting a voltage level of the monitor terminal signal
- a reception power monitor device having a voltage conversion circuit that outputs a reflected display level instruction signal and a display unit that displays a signal level of the reception signal in accordance with the display level instruction signal;
- the communication device According to the communication device, the reception power monitoring device, and the communication device system according to the present application, it is possible to operate other devices without preparing a separate power source for other devices connected to the outside.
- 1 is a block diagram of a communication device system according to a first exemplary embodiment.
- 1 is a block diagram of a monitor terminal signal generation circuit according to a first exemplary embodiment;
- 3 is a graph showing a relationship between a voltage level of a monitor terminal signal and an offset voltage according to the first exemplary embodiment.
- 3 is a graph showing a slope of a voltage level of a monitor terminal signal according to the first embodiment;
- 1 is a block diagram of a received power monitoring device according to a first exemplary embodiment;
- FIG. 3 is a block diagram of a communication device system according to a second exemplary embodiment.
- FIG. 6 is a block diagram of a monitor terminal signal generation circuit according to a third exemplary embodiment.
- FIG. 1 shows a block diagram of a communication apparatus system according to the first exemplary embodiment.
- the communication device system according to the first embodiment includes a communication device 1 and a received power monitor device 2.
- the communication device 1 includes an antenna ANT, a reception processing unit 10, and a monitor terminal signal generation circuit 30.
- the communication device 1 transmits / receives a radio signal by an antenna ANT.
- the reception processing unit 10 generates a transmission signal to be transmitted through the antenna ANT and performs various processes based on the reception signal received through the antenna ANT.
- the reception processing unit 10 includes amplifiers 11 and 14, attenuators 12 and 15, a mixer 13, a signal processing unit 16, a detection circuit 21, an analog / digital converter 22, a calculation unit 23, a digital / analog converter 24, a filter circuit 25, and a capacitor.
- the reception processing unit 10 includes a functional block group that generates a transmission signal to be output to the antenna ANT, but is not related to other functions in the description of the communication device 1 according to the first embodiment. The explanation was omitted.
- the reception processing unit 10 amplifies the reception signal received by the antenna ANT with the amplifier 11 and outputs the amplified signal to the attenuator 12.
- the attenuator 12 attenuates the reception signal output from the amplifier 11 with the attenuation rate specified by the attenuation rate control signal Acnt1, and outputs the attenuated signal to the subsequent mixer 13.
- the mixer 13 converts the frequency of the received signal into an intermediate frequency based on the local signal generated by a local signal generation circuit (not shown).
- the amplifier 14 amplifies the reception signal output from the mixer 13 and outputs the amplified signal to the attenuator 15.
- the attenuator 15 attenuates the reception signal output from the amplifier 14 with the attenuation rate specified by the attenuation rate control signal Acnt2, and outputs the attenuated signal to the subsequent signal processing unit 16.
- the signal processing unit 16 executes various processes based on the given signal.
- the detection circuit 21 detects the received signal based on the signal level of the received signal input to the signal processing unit 16.
- the detection circuit 21 outputs a detection signal Vdet having a voltage level corresponding to the signal level of the received signal.
- the detection circuit 21 is composed of, for example, a rectifier and a capacitor.
- the analog-digital converter 22 outputs a detection level signal having a digital value corresponding to the voltage level of the detection signal Vdet.
- the calculation unit 23 specifies a first signal S1 that specifies the attenuation rate of the attenuators 12 and 15 at which the level of the reception signal input to the signal processing unit 16 becomes an appropriate signal level according to the value of the detection level signal, A second signal S2 designating the value of the signal strength voltage reflecting the value of the detection level signal is output.
- the calculation unit 23 includes a value that specifies the voltage value of the offset voltage Voff to be supplied to the monitor terminal signal generation circuit 30 in the second signal S2.
- the digital-analog converter 24 outputs attenuation rate control signals Acnt1 and Acnt2 based on the first signal S1.
- the digital-analog converter 24 outputs a signal strength voltage Vin and an offset voltage Voff based on the second signal S2.
- the signal strength voltage Vin and the voltage of the detection signal Vdet have the same voltage level.
- the voltage value of the offset voltage Voff specified by the calculation unit 23 may be any of a preset value, a value specified from the outside, and a value calculated by calculation.
- the offset voltage Voff designates the power supply voltage of an external device (for example, the received power monitor device 2) connected to the monitor terminal.
- the filter circuit 25 performs a filtering process on the received signal input to the signal processing unit 16 and extracts the audio signal Sv. Then, the filter circuit 25 superimposes the audio signal Sv on the signal strength voltage Vin via the capacitor C.
- the monitor terminal signal generation circuit 30 generates a monitor terminal signal Vout by applying a current to a level shift voltage obtained by level shifting the signal strength voltage Vin by the offset voltage Voff.
- the monitor terminal signal Vout is output from the monitor terminal of the communication device 1.
- the audio signal Sv since the audio signal Sv is superimposed on the signal strength voltage Vin, the audio signal Sv is also superimposed on the monitor terminal signal Vout.
- the received power monitor device 2 is connected to the monitor terminal of the communication device 1 by connection means such as a cable.
- the reception power monitor device 2 is a level meter that indicates the power level of the reception signal received by the antenna ANT in accordance with the signal level of the monitor terminal signal Vout output from the monitor terminal.
- the received power monitoring device 2 acquires an operating power supply from the monitor terminal signal Vout and operates based on the operating power supply.
- the monitor terminal signal generation circuit 30 of the communication device 1 will be described in more detail.
- a block diagram of the monitor terminal signal generation circuit 30 according to the first embodiment is shown in FIG.
- the monitor terminal signal generation circuit 30 includes an amplifying unit 31, a voltage adding unit 34, and resistors R3 and R4.
- the amplification unit 31 includes an operational amplifier 32 and an output transistor 33.
- the operational amplifier 32 the level shift voltage Vsft output from the voltage adder 34 is supplied to the inverting input terminal, and the feedback signal of the amplifier 31 is supplied to the non-inverting input terminal. Then, the amplifying unit 31 drives the output transistor 33 based on the voltage difference between the level shift voltage Vsft and the voltage level of the feedback signal.
- the inverting input terminal of the operational amplifier 32 is a non-inverting input terminal of the amplifying unit 31, and the non-inverting input terminal of the operational amplifier 32 is an inverting input terminal of the amplifying unit 31.
- the output transistor 33 has a collector connected to the power supply wiring for supplying the power supply voltage VCC, a base connected to the output terminal of the operational amplifier 32, and an emitter connected to the output terminal of the monitor terminal signal generation circuit 30 and one end of the resistor R3. .
- the resistors R3 and R4 are connected in series between the emitter of the output transistor 33 and a ground wiring to which a ground voltage is supplied. A feedback signal is generated at the connection point between the resistors R3 and R4.
- the voltage adding unit 34 has resistors R1 and R2. Then, the signal strength voltage Vin is input to one end of the resistor R1, and the offset voltage Voff is input to one end of the resistor R2. The other end of the resistor R3 and the other end of the resistor R4 are connected to each other, and the level shift voltage Vsft is generated at the connection point.
- the monitor terminal signal generation circuit 30 amplifies the level shift voltage Vsft obtained by adding the signal strength voltage Vin and the offset voltage Voff, and outputs the monitor terminal signal Vout.
- This monitor terminal signal Vout can be expressed by equation (1).
- the monitor terminal signal Vout has its signal level set by the offset voltage Voff, and the slope depending on the magnitude of the signal strength voltage Vin differs depending on the ratio of the resistors R3 and R4. .
- FIG. 3 shows a graph showing the relationship between the voltage level of the monitor terminal signal Vout and the offset voltage Voff.
- the horizontal axis represents the received signal level indicated by the signal strength voltage
- the vertical axis represents the voltage value of the monitor terminal signal Vout.
- the offset voltage of the monitor terminal signal Vout can be varied by varying the offset voltage Voff.
- FIG. 4 is a graph showing the slope of the voltage level of the monitor terminal signal Vout.
- the horizontal axis represents the received signal level indicated by the signal strength voltage
- the vertical axis represents the voltage value of the monitor terminal signal Vout.
- the slope of the monitor terminal signal Vout1 indicating that the ratio of the resistors R3 and R4 is large is steeper than the slope of the monitor terminal signal Vout2 indicating that the ratio of the resistors R3 and R4 is large. . That is, the monitor terminal signal generation circuit 30 can adjust the sensitivity of the monitor terminal signal Vout to the signal intensity signal Vin by adjusting the ratio of the resistors R3 and R4.
- FIG. 5 shows a block diagram of the received power monitoring apparatus 2 according to the first embodiment.
- the received power monitoring device 2 includes a distribution circuit 41, a constant voltage generation circuit 42, and a voltage conversion circuit 43.
- the distribution circuit 41 separates the direct current component and the alternating current component of the monitor terminal signal Vout given from the communication device 1 side, outputs the alternating current component as the audio signal Sv, and outputs the alternating current component as the monitor level signal VLv. 42 and the voltage conversion circuit 43.
- the audio signal Sv is processed by an audio processing circuit (not shown) and output to the outside as audio.
- the constant voltage generation circuit 42 outputs a constant voltage from the monitor level signal VLv. This constant voltage becomes the operation power supply voltage Vpwr of the voltage conversion circuit 43.
- the operating power supply voltage Vpwr may be applied to other circuits not shown such as a sound processing circuit.
- the voltage conversion circuit 43 operates based on a constant voltage (for example, the operating power supply voltage Vpwr), and outputs a display level instruction signal reflecting the voltage level of the monitor terminal signal Vout (or the monitor level signal VLv). Thereby, the reception power monitoring device 2 performs display according to the power level of the reception signal of the communication device 1.
- a constant voltage for example, the operating power supply voltage Vpwr
- Vout or the monitor level signal VLv
- the monitor terminal signal generation circuit 30 generates the level shift voltage Vsft obtained by level shifting the reception intensity signal Vin by the offset voltage Vout, and amplifies the level shift voltage Vsft.
- the unit 31 amplifies the power and outputs a monitor terminal signal Vout.
- the reception power monitoring device 2 that monitors the reception power of the communication device 1 can generate the operation power supply voltage Vpwr from the monitor terminal signal Vout and can operate based on the operation power supply voltage Vpwr.
- the reception power monitoring device 2 can be operated without preparing a separate power source for the reception power monitoring device 2.
- the communication apparatus 1 concerning Embodiment 1 since the wiring or outlet which supplies a power supply from the communication apparatus 1 to the received power monitoring apparatus 2 is unnecessary, the structure of an apparatus can be simplified.
- the reception power monitoring device 2 listens to the audio transmitted from another base based on the audio signal Sv. Can do.
- the audio signal Sv is received has been described.
- FIG. 6 is a block diagram of the communication device 1a according to the second embodiment.
- the same components as those described in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is omitted.
- the detection level signal Vdet output from the detection circuit 21 is used as it is as the signal intensity voltage Vin.
- the analog-digital converter 22 erroneously converts the voltage level of the detection level signal Vdet. Therefore, the audio signal Sv is superimposed on the monitor terminal signal Vout output from the monitor terminal signal generation circuit 30.
- an analog value can be obtained by using the detection level signal Vdet as the signal strength voltage Vin as in the communication device 1a according to the second embodiment. It is possible to reduce errors that occur in the conversion between and digital values. Further, the configuration of the digital-analog converter 24 can be simplified by reducing the conversion processing between the analog value and the digital value.
- FIG. 7 shows a block diagram of the monitor terminal signal generation circuit 30a according to the third embodiment.
- the same components as those described in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof is omitted.
- the monitor terminal signal generation circuit 30 a is configured by only the operational amplifier 32 in the amplification unit 31 of the monitor terminal signal generation circuit 30.
- the output transistor 33 of the amplifying unit 31 assists the current output capability of the operational amplifier 32. If the current output capability of the operational amplifier 32 is sufficient, it can be configured as described above.
- the output transistor 33 can be omitted and the circuit scale can be reduced.
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Abstract
Description
以下では、図面を参照して本発明の実施の形態について説明する。図1に実施の形態1にかかる通信装置システムのブロック図を示す。図1に示すように、実施の形態1にかかる通信装置システムは、通信装置1及び受信電力モニタ装置2を有する。
実施の形態2では、実施の形態1にかかる通信装置1の別の形態について説明する。そこで、実施の形態2にかかる通信装置1aのブロック図を図6に示す。なお、実施の形態2の説明において、実施の形態1で説明した構成要素と同じ構成要素については実施の形態1と同じ符号を付して説明を省略する。
実施の形態3ではモニタ端子信号生成回路30の別の形態となるモニタ端子信号生成回路30aについて説明する。そこで、実施の形態3にかかるモニタ端子信号生成回路30aのブロック図を図7に示す。なお、実施の形態3の説明において、実施の形態1で説明した構成要素と同じ構成要素については実施の形態1と同じ符号を付して説明を省略する。
2 受信電力モニタ装置
10 受信処理部
11 アンプ
12 アッテネータ
13 ミキサ
14 アンプ
15 アッテネータ
16 信号処理部
21 検波回路
22 アナログデジタル変換器
23 演算部
24 デジタルアナログ変換器
25 フィルタ回路
30、30a モニタ端子信号生成回路
31 増幅部
32 オペアンプ
33 出力トランジスタ
34 電圧加算部
41 分配回路
42 定電圧生成回路
43 電圧変換回路
Claims (10)
- 受信信号の信号レベルに応じた信号強度電圧を出力する受信処理部と、
外部装置の電源電圧の電圧値に対応するオフセット電圧により前記信号強度電圧をレベルシフトしたレベルシフト電圧を電流増幅してモニタ端子信号を生成するモニタ端子信号生成回路と、
を有する通信装置。 - 前記モニタ端子信号生成回路は、
前記オフセット電圧と前記信号強度電圧とを加算して前記レベルシフト電圧を生成する電圧加算部と、
前記レベルシフト電圧を電流増幅する増幅部と、
を有する請求項1に記載の通信装置。 - 前記モニタ端子信号は、1本の信号線により前記外部装置に伝達される請求項1又は2に記載の通信装置。
- モニタ対象の通信装置が受信信号の信号レベルに応じて出力するモニタ端子信号から定電圧を出力する定電圧生成回路と、
前記定電圧に基づき動作し、前記モニタ端子信号の電圧レベルを反映した表示レベル指示信号を出力する電圧変換回路と、
を有する受信電力モニタ装置。 - 前記表示レベル指示信号に応じて前記受信信号の信号レベルを表示する表示部を更に有する請求項4に記載の受信電力モニタ装置。
- 前記モニタ端子信号は、1本の信号線により前記受信電力モニタ装置に伝達される請求項4又は5に記載の受信電力モニタ装置。
- 受信信号の信号レベルに応じた信号強度電圧を出力する検波回路と、オフセット電圧により前記信号強度電圧をレベルシフトしたレベルシフト電圧を電流増幅してモニタ端子信号を生成するモニタ端子信号生成回路と、を有する通信装置と、
前記モニタ端子信号から定電圧を出力する定電圧生成回路と、前記定電圧に基づき動作し、前記モニタ端子信号の電圧レベルを反映した表示レベル指示信号を出力する電圧変換回路と、を有する受信電力モニタ装置と、
を有する通信装置システム。 - 前記モニタ端子信号生成回路は、
前記オフセット電圧と前記信号強度電圧とを加算して前記レベルシフト電圧を生成する電圧加算部と、
前記レベルシフト電圧を電流増幅する増幅部と、
を有する請求項7に記載の通信装置システム。 - 前記受信電力モニタ装置は、前記表示レベル指示信号に応じて前記受信信号の信号レベルを表示する表示部をさらに有する請求項7又は8に記載の通信装置システム。
- 前記モニタ端子信号は、1本の信号線により前記通信装置から前記受信電力モニタ装置に伝達される請求項7乃至9のいずれか1項に記載の通信装置システム。
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EP14763825.8A EP2975773A4 (en) | 2013-03-11 | 2014-02-06 | COMMUNICATION DEVICE, RECEIVING POWER MONITORING DEVICE, AND COMMUNICATION DEVICE SYSTEM |
RU2015140615A RU2015140615A (ru) | 2013-03-11 | 2014-02-06 | Устройство связи, устройство отслеживания мощности приема и система устройства связи |
US14/774,192 US9628204B2 (en) | 2013-03-11 | 2014-02-06 | Communication device, reception power monitoring device, and communication device system |
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US (1) | US9628204B2 (ja) |
EP (1) | EP2975773A4 (ja) |
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2014
- 2014-02-06 RU RU2015140615A patent/RU2015140615A/ru not_active Application Discontinuation
- 2014-02-06 WO PCT/JP2014/000626 patent/WO2014141583A1/ja active Application Filing
- 2014-02-06 US US14/774,192 patent/US9628204B2/en not_active Expired - Fee Related
- 2014-02-06 EP EP14763825.8A patent/EP2975773A4/en not_active Withdrawn
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RU2015140615A (ru) | 2017-04-18 |
EP2975773A4 (en) | 2016-10-26 |
US20160028500A1 (en) | 2016-01-28 |
US9628204B2 (en) | 2017-04-18 |
EP2975773A1 (en) | 2016-01-20 |
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