GB2529015A - Communication device - Google Patents
Communication device Download PDFInfo
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- GB2529015A GB2529015A GB1507322.4A GB201507322A GB2529015A GB 2529015 A GB2529015 A GB 2529015A GB 201507322 A GB201507322 A GB 201507322A GB 2529015 A GB2529015 A GB 2529015A
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- electric power
- power wave
- communication device
- antenna
- wave reception
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- 238000004891 communication Methods 0.000 title claims abstract description 72
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims description 66
- 239000000470 constituent Substances 0.000 claims description 9
- 230000008929 regeneration Effects 0.000 claims description 8
- 238000011069 regeneration method Methods 0.000 claims description 8
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 abstract description 4
- 230000008054 signal transmission Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 24
- 230000009467 reduction Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
A communication device is driven by wireless power derived from an electric power wave transmitted from an external wireless power feed device. A plurality of electric power wave reception antennas (101 and 133) are provided in the communication device. Electric power for a signal transmission antenna 111 is supplied from the first electric power wave reception antenna 101, while independently from that, electric power for a signal generation portion 120 is supplied by the second electric power wave reception antenna 133. As a result, the signal generation portion is stably driven, internal voltage drop does not occur, and malfunction is prevented. Moreover, a clock is regenerated from the second electric power wave reception antenna 133 so that a clock generation portion does not have to be provided.
Description
COMMUNICATION DEVICE
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to a communication device driven by gaining electric power from an electric power wave transmitted from an outside.
Description of the Related Art
Communication devices not having a power supply in itself includes those in which an electric power wave transmitted from an external wireless power feed device is received, and an operation power of the communication device itself is generated from that electric power wave. Moreover, such communication devices include a device which has a function of holding information inside the communication device and transmitting an information as a signal wave toward the outside during an operation of the communication device.
In such a device, relatively large power is often consumed during the transmission of the signal wave. Thus, power consumption increases at the same time as start of the transmission of the signal wave, and an internal voltage drop of the communication device might occur. When an amount of internal voltage drop exceed the lower limit of a rated voltage of an internal circuit of the communication device, the communication device enters a state in which a normal operation is difficult, and a malfunction might occur.
As means for preventing such occurrence of the malfunction, there is a method of applying a reset operation to a CPU or the like so as to stop the operation of the internal circuit when the internal voltage falls under the rated voltage. (Japanese Patent Laid-Open Publication No. 09-1 30999) However, the fact that the reset operation is performed when the internal voltage falls under the rated voltage and the operation in the internal circuit such as the CPU is stopped means, in the communication device, that transmission of the signal wave is stopped during that period, and the subsequent transmission start timing is delayed. That is, according to this method, an unstable operation of the communication device can be avoided, but the delay of the signal wave transmission start timing has a problem that leads to a performance drop such as lowering of a response speed, a reduction of a communication range and the like.
Thus, the present invention provides a communication device which can stably perform an operation of an internal circuit without a delay in operation start timing of the communication device by gaining electric power from the electric power wave transmitted from an outside, that is, by so-called wireless power feed.
SUMMARY OF THE INVENTION
In order to solve the above-described problems, in the present invention, a plurality of electric power wave routes supplied from the electric power wave are provided in the communication device, and in the plurality of electric power wave routes, a first electric power wave route is connected so as to supply power to a circuit for driving a transmission element for transmitting signals from the communication device, while the other electric power wave routes are connected to a signal generation portion for generating signals transmitted by the communication device.
According to the present invention, the communication device which can perform a stable operation without delaying the operation start timing of the communication device can be provided.
Problems, configurations and advantageous effects other than the above will be made apparent from description of the following embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an entire configuration view of a communication device in the present invention; FIG. 2 is an entire configuration view of the communication device for distributing power from one reception antenna by a distribution transformer; FIG. 3 is an entire configuration view of the communication device including a clock regeneration circuit; FIG. 4 is an entire configuration view of the communication device provided with three or more reception antennas; FIG. 5 is an entire configuration view of the communication device using a coil for a reception element; and FIG. 6 is an entire configuration view of the communication device having a second electric power wave reception antenna provided inside a first electric power wave reception antenna.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Embodiments of the present invention will be described below by referring to the drawings.
An electric power wave route in the present invention means a series of connection started from a reception element receiving an electric power wave transmitted from an outside in order to transmit electric power or signals.
(Embodiment 1) In this embodiment, there will be described an embodiment of a communication device driven by gaining electric power which is gained from an electric power wave transmitted from an outside, wherein: a plurality of electric power wave routes supplying electric power obtained from the electric power wave or a signal into the communication device are provided in the communication device; in the plurality of electric power wave routes, a first electric power wave route is connected to supply power to a circuit for driving a transmission element for transmitting signals from the communication device; and the other electric power wave routes are connected to a signal generation portion for generating signals transmitted by the communication device.
Moreover, in this embodiment, there will be also described an embodiment of a communication device wherein impedance of the signal generation portion is set higher than impedance of the circuit for driving the transmission element.
There will be also described an embodiment of a communication device wherein a lower limit value of an operable voltage of a circuit for driving the transmission element is set lower than an operable voltage lower limit value of the signal generation portion.
There will be also described an embodiment of a communication device wherein the plurality of electric power wave routes are connected from a plurality of electric power wave reception elements for receiving the electric power wave, respectively.
There will be also described an embodiment of a communication device wherein the electric power wave reception element is an electric power wave reception antenna, and a transmission element is a transmission antenna.
This embodiment provides a communication device which can stably perform an operation of an internal circuit by providing power supply to a signal wave transmission element involving relatively large power consumption in many cases independently from the other portions. For example, in a communication device in which the power consumption increases in transmission of the signal wave, a stable operation of a digital circuit (a signal wave generation circuit, for example) can be obtained.
FIG. 1 is a view illustrating an embodiment of a communication device according to the present invention. The communication device of this embodiment includes a first electric power wave reception antenna 101 as an electric power wave reception element. Electric power obtained by the first electric power wave reception antenna 101 passes through a first electric power wave route illustrated below. First, it is converted to an arbitrary voltage in a conversion transformer 104, and an output of the conversion transformer 104 is inputted into a first rectification portion 100. The first rectification portion 100 rectifies the input from the first conversion transformer 104 by a bridge rectifier circuit 102. An output of the bridge rectifier circuit 102 is rectified by a stabilization circuit 103 and becomes a rectification voltage Vdd. Here, the first electric power wave route ends.
Moreover, this communication device also includes a second electric power wave reception antenna 133 as an electric power wave reception element. Electric power obtained by the second electric power wave reception antenna 133 passes through another electric power wave route illustrated below. First, it is converted to an arbitrary voltage in a conversion transformer 134. Then, an output of the conversion transformer 134 is inputted into a second rectification portion 130. The second rectification portion performs rectification by a bridge rectifier circuit 131, and an output of the bridge rectifier circuit 131 is rectified by a stabilization circuit 132 and becomes a rectification voltage Vcc. Here, the other electric power wave route ends.
The electric power by this electric power system is supplied as power for the signal generation portion 120.
Moreover, this communication device includes a signal wave transmission antenna 111 as a transmission element. The signal wave transmission antenna 111 is connected to a transmission antenna driving portion 110 via a conversion transformer 112. The transmission antenna driving portion 110 is realized by using an FET 113, for example. A primary-side one end of the conversion transformer 112 is connected to a drain terminal of the FET 113, while the other end is connected to Vdd. Moreover, a source terminal of the FET 113 is connected to the ground, and by inputting a transmission signal to a gate terminal of the FET 113, a signal current is made to flow to the transmission antenna 111. When the signal current is generated in the transmission antenna 111, a magnetic field is generated, and a signal wave is transmitted.
A transmission signal is generated in the signal generation portion 120. The signal generation portion 120 includes a ROM 122 for storing signal information, for example, and the ROM 122 is connected to a calculation portion 121. Moreover, a clock generation portion 124 for generating a clock used for calculation is connected to the calculation portion 121. Moreover, the calculation portion 121 encodes the signal information read out of the ROM 122 and outputs it as the transmission signal.
The outputted transmission signal is modulated in a modulation portion 123 and is inputted into the transmission antenna driving portion 110.
Moreover, input impedance of the signal generation portion 120 is set higher than input impedance of the transmission antenna driving portion 110, and a lower limit value of an operable voltage of the transmission antenna driving portion 110 is set lower than an operable voltage lower limit value of the signal generation portion 120.
As described above, according to this embodiment, by providing two electric power wave reception antennas, the two electric power wave routes are provided independently. Thus, the first electric power wave route can be used for supplying power to a circuit (transmission antenna driving portion 110) with larger current consumption for generating a signal current in the signal wave transmission antenna, while the other electric power wave route can be used as an independent power supply to a circuit (signal generation portion 120) with smaller current consumption executing generation of the transmission signal, control of the entire device and the like.
Then, even if the power supply voltage of the transmission antenna driving circuit 110 drops by the transmission of the signal wave, since the power supply of the transmission signal generation portion 120 is separated from the former, the voltage drop of the latter can be suppressed. That is, the signal generation portion which should have conventionally stopped its operation due to the voltage drop in transmission of the signal wave can be continuously operated.
That is, according to this embodiment, by separating the power supply Vdd of the transmission antenna driving portion 110 from the power supply Vcc of the signal generation portion 120, even if the Vdd voltage drops due to the transmission of the signal wave, the voltage drop of Vcc can be suppressed, and a stable operation of the signal generation portion 120 can be obtained.
Moreover, if supply of Vcc is sufficient, operation possibility of this communication device depends on an input rated lower limit value of the transmission antenna driving portion 110. That is, the transmission antenna driving portion 110 is capable of operation as long as a drain current of the FET 113 is obtained, and since the drain current can be generated with a smaller voltage than Vcc, assuming that an antenna driving circuit is capable of operation at a low voltage, the transmission antenna driving portion becomes capable of stable operation with low input power. As a result, stability of the communication device as a whole can be improved.
In the example illustrated in FIG. 1, the first electric power wave reception antenna 101 and the second electric power wave reception antenna 133 are made serial resonant antennas, but they may be parallel resonant antennas.
Moreover, by making the signal wave transmission antenna 111 a parallel resonant antenna, impedance of the signal wave transmission antenna 111 rises, and current consumption of Vdd can be reduced.
The signal wave transmission antenna 111 may be made a serial resonant antenna.
Moreover, by connecting a conversion transformer to each of the transmission/reception antennas, impedance of each antenna can be easily matched with the impedance of a communication target.
The conversion transformer 104, the conversion transformer 112, and the conversion transformer 134 connected to each antenna can obtain effects of impedance conversion, balanced/unbalanced conversion, and DC decoupling, but if the above-described effects are not necessary, the conversion transformers may be non-mounted, and in that case, power loss by the conversion transformer can be reduced.
Moreover, a bipolar transistor may be used instead of the EEl 113 in the transmission antenna driving portion 110. In this case, since a base voltage required for driving the bipolar transistor is lower than a gate voltage required for driving the FET, the transmission antenna driving portion 110 is made operable even if the voltage of a transmission signal outputted by the signal generation portion 120 further falls.
Moreover, if modulation processing can be executed in the calculation portion 121, the modulation portion 123 is not required, and reduction of power consumption and cost reduction are made possible by reduction in the number of components.
Moreover, regarding the signal information, information stored in the ROM 122 is read and also, it can be inputted from an outside of this communication device.
Moreover, in this embodiment, power of the signal generation portion is all fed from the rectification portion 130, but power supply from the rectification portion 130 may be made to a part of circuits or only an IC of the signal generation portion 120.
By reducing power supply destinations of the rectification portion 130 so as to reduce a load, electric power that should be received by the reception antenna 133 decreases, and the dimension of the reception antenna 133 can be reduced.
Moreover, in this embodiment, the similar effects can be obtained by replacing the signal wave transmission antenna 111 by an element outputting a physical signal (element with large power consumption with respect to the signal generation portion 120) such as a video display device outputting a light signal or a speaker outputting a sound signal.
(Embodiment 2) FIG. 2 is an embodiment of a communication device, wherein, in a plurality of electric power wave routes, a distribution transformer is connected to one electric power wave reception element receiving an electric power wave for distribution by the distribution transformer into two or more, from each of which connection is made.
The embodiment 2, more specifically, includes, similarly to the embodiment 1, the rectification portion 100, the rectification portion 130, the signal wave transmission antenna 111, the transmission antenna driving portion 110, the signal generation portion 120, and the conversion transformer 112. Moreover, an electric power wave reception antenna 510 and a distribution transformer 511 for distributing the electric power received by the electric power wave reception antenna 510 are provided, and the electric power distributed by the distribution transformer 511 is inputted into the rectification portion 100 and the rectification portion 130.
According to this embodiment, two rectification power supplies can be obtained with one electric power wave reception antenna 510, and cost reduction and reduction of a component mounting area can be made possible.
(Embodiment 3) FIG. 3 is an embodiment of a communication device wherein at least one of the other electric power wave routes is connected to a clock generation portion in the signal generation portion, and a clock obtained by regenerating the clock of the electric power wave by a clock regeneration circuit is used as a clock of the communication device.
More specifically, the embodiment 3 includes the first electric power wave reception antenna 101, the first rectification portion 100, the signal wave transmission antenna 111, the transmission antenna driving portion 110, the signal generation portion 120, and the conversion transformer 104 and the conversion transformer 112, similarly to the embodiment 1, and the second electric power wave reception antenna 133 is connected to a clock regeneration circuit 201. In the clock regeneration circuit 201, the clock of the received electric power wave is regenerated and inputted into the calculation portion 121. In the calculation portion 121, calculation processing is executed by a clock inputted from the clock regeneration circuit 201.
The clock regeneration circuit 201 can be realized by a bias circuit and a limiter circuit as illustrated in FIG. 2, for example. The signal outputted by the second electric power wave reception antenna 133 by receiving the electric power wave becomes a differential signal having the amplitude depending on electric power wave intensity. This differential signal is given a bias voltage by being inputted into the bias circuit, which is outputted as a single end signal (clock signal), and is made capable of being inputted into the calculation portion. Moreover, since the amplitudes of the differential signal and the clock signal depend on the electric power wave intensity, when the electric power wave at high intensity is received, there is a risk that the clock signal exceeds an input rate of the calculation portion. In order to prevent that, a limiter circuit is provided so as to limit the amplitude of the clock signal.
According to this embodiment, by regenerating the clock from the electric power wave, an oscillator with relatively large power consumption of several tens mW can be unnecessary, and the power consumption can be reduced.
Moreover, by raising impedance of the clock regeneration circuit 201, an input voltage into the circuit can be raised in an early stage, and the clock can be established earlier than start-up of the other circuits, whereby a malfunction of the device can be prevented.
(Embodiment 4) FIG. 4 is an embodiment of a communication device wherein a plurality of the other electric power wave routes are provided, each of the other electric power wave routes is connected to an individual rectification portion for generating an individual rectification voltage, and by connecting the individual rectification portion to each of constituent elements of the signal generation portion, a starting order of each of the constituent elements of the signal generation portion can be arbitrarily set.
The embodiment 4 includes, more specifically, in addition to the embodiment 1, a plurality of electric power wave reception antennas (an electric power wave reception antenna 333A, an electric power wave reception antenna 333B, an electric power wave reception antenna 333C) and includes conversion transformers for transmitting electric power received by the respective antennas (a conversion transformer 334A, a conversion transformer 334B, a conversion transformer 334C), and rectification portions (a rectification portion 330A, a rectification portion 330B, a rectification portion 330C) for rectifying electric power from the conversion transformers, an individual rectification voltage (VccA, VccB, VccC) is generated from each of the rectification portions, and power is supplied individually to each of the constituent elements of the signal generation portion 120.
According to this embodiment, since the constituent element of the signal generation portion 120 individually receives power supply, an influence of power consumption increase/decrease with respect to each other is reduced.
Moreover, by adjusting dimensions and frequency characteristics of the reception antennas 333A, 333B, and 333C as well as a turn ratio (a ratio of winding turn numbers) of the conversion transformers 334A, 334B, and 334C, VccA, VccB, and VccC can be set arbitrarily, and by arbitrarily setting impedance of each of the circuits using the individual electric power wave reception antennas, a rising order of the circuits can be set arbitrarily. As a result, the starting order of each of the constituent elements of the signal generation portion can be set arbitrarily. That is, by setting the impedance of the circuit using the specific electric power wave reception antenna, a power supply voltage can be raised in a stage earlier than the other circuits, and operation start timing can be expedited.
As a result, by delaying rise of VccC supplying power to the calculation portion more than VccA and VccB, for example, the operation of the calculation portion can be started after the other constituent elements are stably operated.
If rise of the modulation portion is later than that of the calculation portion, possibility that data is not transmitted normally is generated, while if rise of the ROM is later than that of the calculation portion, possibility that the calculation portion reads out wrong data is generated. However] if the rise of the calculation portion can be set to be later than the rises of the ROM and the modulation portion, the device can be operated stably.
Moreover, by providing an electric power wave reception antenna individually only in a part of the transmission signal generation circuit, that is, a circuit with a high rated voltage or a circuit requiring stable operation, for example, electric power borne by the antenna is reduced, and the present invention can be realized by a smaller-sized antenna.
(Embodiment 5) FIG. 5 is an embodiment of a communication device wherein an electric power wave reception element is an electric power wave reception coil and a transmission element is a transmission coil.
The embodiment 5, more specifically, includes electric power wave reception coils 410 and 430 and a signal wave transmission coil 420 instead of the electric power wave reception antennas 101 and 133 and the signal wave transmission antenna 111 in the embodiment 1.
According to this embodiment, since the transmission/reception circuit by the coil does not require adjustment of a resonant frequency as in the transmission/reception circuit by a resonant antenna, designing is facilitated, and characteristic deterioration caused by frequency fluctuation of a transmission/reception signal can be decreased.
(Embodiment 6) FIG. 6 is an embodiment of a communication device wherein an electric power wave reception element connected to the other electric power wave route is an electric power wave reception antenna, and the electric power wave reception antenna is provided inside an electric power wave reception antenna constituting the electric power wave reception element connected to the first electric power wave route, and of a communication device wherein the electric power wave reception antenna is non-resonant antenna.
The embodiment 6, more specifically, includes the second electric power wave reception antenna 133 in the embodiment 1 inside the first electric power wave reception antenna 101.
When a plurality of the electric power wave reception antennas are provided, the increase in the number of antennas increase the space of an antenna mounting area, and expand the size of the device itiself. As a solution to that, the second electric power wave reception antenna 133 is installed inside the first electric power wave reception antenna 101 as illustrated in FIG. 2 so that the antenna mounting area can be effectively used, and the expansion of the area of device can be prevented.
Thus, a pad of or the whole of the other constituent element other than the second electric power wave reception antenna may be provided inside the first electric power wave reception antenna.
At this time, if the dimensions of the first electric power wave reception antenna 101 and the second electric power wave reception antenna 133 are close to each other, a distance between the both antennas becomes short, and a degree of electric coupling between the both antennas (mutual inductance, mutual capacitance) increases. If the electric coupling between the antennas increases, a reception loss increases, and the reception characteristics of the antenna deteriorate.
As a solution to that, by setting the dimension of the first electric power wave reception antenna 101 to approximately several hundreds mm and by setting the dimension of the second electric power wave reception antenna 133 similarly to approximately several tens mm, for example, an interval between the outer antenna (the first electric power wave reception antenna 101) and the inner antenna (second -10-electric power wave reception antenna 133) can be enlarged, and the electric coupling between the antennas can be reduced, that is, the reception characteristics deterioration of the antenna can be prevented.
Regarding the dimension of the second electric power wave reception antenna 133, since a relation of the antenna area x antenna induction voltage.t"j (antenna reception power) holds true, power consumption of the circuit to which electric power is supplied from the second electric power wave reception antenna 133 is set to one hundredth of the power consumption of the circuit to which the electric power is similarly supplied from the first electric power wave reception antenna 101, for example, an antenna area ratio can be reduced to one tenth.
Moreover, in the resonant antenna using resonance of the inductance and the capacitance as illustrated in the embodiment 1, though reception characteristics of the antenna is improved, an allowable margin of the resonant frequency is narrow (a receivable frequency range is narrow) and is largely affected by an error of a constant of a component to be mounted. Thus, the resonant frequency needs to be adjusted after manufacture of the device, and an increase of manufacturing processes and a cost increase are incurred.
As a solution to that, in FIG. 6, the second electric power wave reception antenna 133 is made a non-resonant antenna. In the non-resonant antenna, the resonant frequency does not have to be adjusted, and an adjustment process is not reqired. At this time, by suppressing power consumption of the circuit to which electric power is supplied from the second electric power wave reception antenna to several mW or less, the electric power that should be received by the second electric power wave reception antenna 133 is reduced, and the antenna can be made a non-resonant antenna, while the antenna dimension is reduced to several tens mm.
The present invention is not limited to the above-described embodiments but includes various variations. Moreover, a part of the configuration of one of the embodiments can be replaced by another embodiment configuration. Moreover, the above-described embodiments are described in order to explain the present invention so as to be understood easily and are not necessarily intended to be limited to those provided with all the configurations described above.
As described in the explanation of the embodiment 1, the various functions included in the communication device are not limited to those described in the embodiment, but addition and deletion of the various functions can be made.
Moreover, it is needless to say that the configuration of the circuit for realizing the functions and the like are not limited to the embodiments, but various variations are possible. -11 -
Claims (11)
- What is claimed is: 1. A communication device driven by gaining electric power from an electric power wave transmitted from an outside, wherein: a plurality of electric power wave routes supplying electric power obtained from the electric power wave or a signal into the communication device are provided in the communication device; in the plurality of electric power wave routes, a first electric power wave route is connected to supply power to a circuit for driving a transmission element for transmitting a signal from the communication device; and the other electric power wave routes are connected to a signal generation portion for generating the signal transmitted by the communication device.
- 2. The communication device according to claim 1, wherein impedance of the signal generation portion is set higher than impedance of the circuit for driving the transmission element.
- 3. The communication device according to claim 1 or 2, wherein a lower limit value of an operable voltage of a circuit for driving the transmission element is set lower than an operable voltage lower limit value of the signal generation portion.
- 4. The communication device according to any one of claims 1 to 3, wherein in the plurality of electric power wave routes, a distribution transformer is connected to one electric power wave reception element receiving an electric power wave for distribution by the distribution transformer to two or more, from each of which connection is made.
- 5. The communication device according to any one of claims 1 to 3, wherein the plurality of electric power wave routes are connected from a plurality of electric power wave reception elements for receiving the electric power wave, respectively.
- 6. The communication device according to any one of claims 1 to 3, wherein at least one of the other electric power wave routes is connected to a clock generation portion in the signal generation portion, and a clock obtained by regenerating the clock of the electric power wave by a clock regeneration circuit is used as a clock of the communication device.
- 7. The communication device according to any one of claims 1 to 3, wherein a plurality of the other electric power wave routes are provided, each of the other electric power wave routes is connected to an individual rectification portion for -12-generating an individual rectification voltage, and by connecting the individual rectification portion to each of constituent elements of the signal generation portion, a starting order of each of the constituent elements of the signal generation portion can be arbitrarily set.
- 8. The communication device according to claim 4, wherein the electric power wave reception element is an electric power wave reception antenna, and the transmission element is a transmission antenna.
- 9. The communication device according to claim 4, wherein the electric power wave reception element is a coil for electric power wave reception, and the transmission element is a transmission coil.
- 10. The communication device according to claim 8, wherein the electric power wave reception element connected to the other electric power wave route is an electric power wave reception antenna, and the electric power wave reception antenna is provided inside the electric power wave reception antenna constituting the electric power wave reception element connected to the first electric power wave route.
- 11. The communication device according to claim 8, wherein the electric power wave reception antenna is a non-resonant antenna.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014120180A JP6162648B2 (en) | 2014-06-11 | 2014-06-11 | COMMUNICATION DEVICE AND COMMUNICATION DEVICE STARTING METHOD |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201507322D0 GB201507322D0 (en) | 2015-06-10 |
| GB2529015A true GB2529015A (en) | 2016-02-10 |
| GB2529015B GB2529015B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1507322.4A Active GB2529015B (en) | 2014-06-11 | 2015-04-29 | Communication device |
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| Country | Link |
|---|---|
| JP (1) | JP6162648B2 (en) |
| CN (1) | CN105226847B (en) |
| GB (1) | GB2529015B (en) |
Citations (1)
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|---|---|---|---|---|
| US20060138653A1 (en) * | 2004-12-24 | 2006-06-29 | International Business Machines Corporation | RFIC chip, and position recognition system and security system using the same |
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| JP3519520B2 (en) * | 1995-11-09 | 2004-04-19 | 株式会社東芝 | Wireless communication system |
| JP2002502178A (en) * | 1998-01-29 | 2002-01-22 | マゼラン テクノロジー ピーティーワイ．エルティーディー． | Transceiver |
| CN1773522A (en) * | 2004-11-10 | 2006-05-17 | 中兴电工机械股份有限公司 | Radio display device |
| DE602006016854D1 (en) * | 2005-12-07 | 2010-10-21 | Nxp Bv | CIRCUIT ARRANGEMENT AND METHOD FOR OPERATING A CIRCUIT ARRANGEMENT |
| JP2008009910A (en) * | 2006-06-30 | 2008-01-17 | Citizen Holdings Co Ltd | Ic card and ic card reading system |
| JP4808182B2 (en) * | 2007-04-27 | 2011-11-02 | 株式会社エヌ・ティ・ティ・ドコモ | Wireless communication apparatus and power supply method for wireless communication apparatus |
| JP5786194B2 (en) * | 2011-08-01 | 2015-09-30 | 株式会社日立製作所 | Non-contact electronic device |
| KR101844427B1 (en) * | 2011-09-02 | 2018-04-03 | 삼성전자주식회사 | Communication system using wireless power |
| JP5633620B2 (en) * | 2013-10-10 | 2014-12-03 | 株式会社村田製作所 | Electronic medium with IC and electronic medium system with IC |
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- 2014-06-11 JP JP2014120180A patent/JP6162648B2/en active Active
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2015
- 2015-04-29 GB GB1507322.4A patent/GB2529015B/en active Active
- 2015-05-15 CN CN201510248937.5A patent/CN105226847B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060138653A1 (en) * | 2004-12-24 | 2006-06-29 | International Business Machines Corporation | RFIC chip, and position recognition system and security system using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105226847B (en) | 2017-11-28 |
| JP2016001769A (en) | 2016-01-07 |
| JP6162648B2 (en) | 2017-07-12 |
| CN105226847A (en) | 2016-01-06 |
| GB2529015B (en) | 2017-03-08 |
| GB201507322D0 (en) | 2015-06-10 |
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