CN205883209U - OOK pulse signal emitter and communication device thereof - Google Patents
OOK pulse signal emitter and communication device thereof Download PDFInfo
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- CN205883209U CN205883209U CN201620713908.1U CN201620713908U CN205883209U CN 205883209 U CN205883209 U CN 205883209U CN 201620713908 U CN201620713908 U CN 201620713908U CN 205883209 U CN205883209 U CN 205883209U
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Abstract
The utility model relates to a signal emission device and communication device, wherein, signal emission device includes modulated circuit, pulse generating circuit and output impedance adjustable power drive circuit, modulated circuit's input with pulse generating circuit's level judges that the input is connected to signal generating device's output respectively, modulated circuit's output is connected pulse generating circuit's signal input part, pulse generating circuit's output is connected the input of power drive circuit, the output of power drive circuit signal loading to the signal receiver after with power amplification. Above -mentioned signal emission device and communication device work at the digital formula state that triggers, have the advantage of low -power consumption, low complexity on realizing to the unit bit energy consumption of messenger system is showing and is reducing.
Description
Technical field
This utility model relates to human body medium's communication technical field, particularly relates to a kind of OOK pulse signal discharger
And communicator.
Background technology
In existing communication system, the FSK (Frequency-shift of transmitter commonly used non-pulse formula
Keying, frequency shift keying), the signal modulation methods such as BPSK (Binary Phase Shift Keying, binary phase shift keying)
Formula.The mode circuit structures such as FSK, BPSK are relative complex, be unfavorable for the fully integrated design of whole system, and power consumption is relatively big, above-mentioned
The drawbacks limit modes such as FSK, BPSK application in actual scene.
As a example by the body area network applied environments such as human body communication, human body medium's communication technology is generally a kind of by human body work
The Novel Communication mode carried out data transmission for cable, by this technology, human body will become a part for network, and people have only to
By touching the transmitting-receiving that just can carry out information.Volume under body area network applied environment, to Wearable particularly implanted equipment
Strict restriction is had, these defect great limitations of the communication mode such as FSK, BPSK human body medium's communication system with power consumption
Practicality and commercialization.
In sum, prior art power consumption is big, structure is complicated.
Utility model content
Based on this, it is necessary to problem big for prior art power consumption, baroque, it is provided that a kind of sender unit and
Communicator.
A kind of sender unit, including:
Modulation circuit, pulse generating circuit and the power driving circuit of output impedance adjustable；
The input of described modulation circuit and the electrical level judging input of described pulse generating circuit connect signal respectively and send out
The outfan of generating apparatus, the outfan of described modulation circuit connects the signal input part of described pulse generating circuit, described pulse
The outfan that circuit occurs connects the input of described power driving circuit, and the outfan of described power driving circuit connects signal
Receive device；
The described primary signal that signal generation apparatus is produced by described modulation circuit is modulated, and exports modulated signal
To pulse generating circuit, described modulated signal is converted to digital pulse signal and exports to power drive by described pulse generating circuit
Circuit, described power driving circuit regulates the effective output of described digital pulse signal and exports.
A kind of communicator, including:
Sender unit, first sensor, the second sensor, and signal receiving device；
The outfan of the power driving circuit of described sender unit is connected with the input of described first sensor,
The outfan of described first sensor is connected by the input of transmission channel with described second sensor, described second sensing
The outfan of device is connected with described signal receiving device.
Above-mentioned sender unit and communicator thereof, be modulated primary signal by described modulation circuit, obtain
Modulated signal, is converted to digital pulse signal by described pulse generating circuit by described modulated signal, and by described power
Drive circuit is for being adjusted to predetermined power value by the power of described digital pulse signal and exporting, and system structure is simple, cost
Low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sender unit of an embodiment；
Fig. 2 is the structural representation of the pulse generating circuit of an embodiment；
Fig. 3 is the structural representation of the power driving circuit of an embodiment；
Fig. 4 is the structural representation of the push-pull power amplifier circuit of an embodiment；
Fig. 5 is the structural representation of the communicator of an embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings the embodiment of sender unit of the present utility model and communicator is illustrated.
Fig. 1 is the structural representation of the sender unit of an embodiment.As it is shown in figure 1, described sender unit
Comprise the steps that
Modulation circuit 10, pulse generating circuit 20 and the power driving circuit 30 of output impedance adjustable；
The input of described modulation circuit 10 and the electrical level judging input of described pulse generating circuit 20 connect letter respectively
The outfan of number generating means 40, the outfan of described modulation circuit 10 connects the signal input of described pulse generating circuit 20
End, the outfan of described pulse generating circuit 20 connects the input of described power driving circuit 30, described power driving circuit
The outfan of 30 connects signal receiving device 300；
The described primary signal that signal generation apparatus 40 is produced by described modulation circuit 10 is modulated, and exports modulation letter
Number to pulse generating circuit 20, described modulated signal is converted to digital pulse signal and exports to merit by described pulse generating circuit 20
Rate drive circuit 30, described power driving circuit 30 can regulate having of described digital pulse signal by changing output impedance
Effect output also exports.
Described modulation circuit 10 can receive NRZ data D2 that signal generation apparatus 40 produces.In one embodiment,
The data that described signal generation apparatus 40 produces are probably nonreturn to zero code data D2, now, can described signal generation apparatus with
One NRZ is set between described pulse generating circuit and produces circuit 60, the non-return-to-zero yardage produced by signal generation apparatus 40
Be converted to NRZ data D2 according to D1 and export described modulation circuit 10 and pulse generating circuit 20.Carry out owing to system is follow-up
On-off keying (On-Off Keying, OOK), carry out NRZ conversion, it is to avoid during data appearance " even 1 string " situation, follow-up
OOK modulation only can complete, to the modulation of " first data 1 " in " even 1 string ", to prevent from causing loss of data.Described NRZ produces
The input of circuit 60 may be connected to described signal generation apparatus 40, and described NRZ produces the outfan of circuit 60 and may be connected to
Described modulation circuit 10 and the electrical level judging input of described pulse generating circuit 20.
In one embodiment, it is also possible to a synchronous circuit is set；The input of described synchronous circuit is connected to described
The outfan of signal generation apparatus 40, the outfan of described synchronous circuit is connected to described NRZ and produces the input of circuit 60
End；Described synchronous circuit can be used for obtaining the clock signal Tong Bu with described nonreturn to zero code data D1, and believes according to described clock
Number described nonreturn to zero code data D1 are carried out edge calibration.
As in figure 2 it is shown, described pulse generating circuit 20 can include that level sensitive circuit 201, counting circuit 202 and pulse are sent out
Raw electronic circuit 203；The input of described level sensitive circuit 201 connects the outfan of described signal generation apparatus 40, described electricity
The outfan of flat testing circuit 201 connects the state output terminal of described counting circuit 202 and described pulse generation electronic circuit 203
Enable and control end；The counting input end of described counting circuit 202 connects the outfan of described modulation circuit 10, described counting circuit
The outfan of 202 connects the tally control end of described pulse generation electronic circuit 203；The output of described pulse generation electronic circuit 203
End connects the input of described power driving circuit 30.Digital pulse signal D4 described in foregoing circuit structural generation can be used.Tool
Body ground, described level sensitive circuit 201 can carry out electrical level judging to described NRZ data D2, when described NRZ data D2
During for low level, described pulse generation electronic circuit 203 can be controlled and enter standby off working state, and make described pulse generation electricity
The digital pulse signal D4 of road 203 output keeps low level, and continues electrical level judging, when described NRZ data D2 are high level
Time, can the rising edge of described modulated signal D3 be counted notifications count circuit 202, if count value cnt=1, then by described
The digital pulse signal D4 of pulse generating circuit 20 output is set to high level, if count value cnt=2, then by described pulse generation
The digital pulse signal D4 of electronic circuit 203 output is set to low level, stops counting, count value cnt is reset simultaneously.
As it is shown on figure 3, in one embodiment, described power driving circuit 30 can include push-pull power amplifier circuit 301
With bias set circuti 302；The signal input part of described push-pull power amplifier circuit 301 is defeated with described pulse generating circuit 20
Go out end to be connected, the outfan phase of the bias input end of described push-pull power amplifier circuit 301 and described bias set circuti 302
Connecting, the outfan of described push-pull power amplifier circuit 301 is connected with described signal receiving device 300.Wherein, recommend described in
The effective power of described digital pulse signal D4 can be adjusted to predetermined power value by power amplification circuit 301, and exports described
Signal receiving device 300；Described bias set circuti 302 equivalent output impedance of output node can be regulated to described signal
Receive device 300 to match, and described digital pulse signal D4 is transmitted into described by described push-pull power amplifier circuit 301
Signal receiving device 300, carries out exporting the power drive of impedance adjustable and finally exporting, it is ensured that with signal receiving device
The impedance matching of 300.
As shown in Figure 4, described push-pull power amplifier circuit 301 can include the first resistance 301a, the first MOS transistor
301b, the second MOS transistor c, the 3rd MOS transistor 301d and the 4th MOS transistor 301e；The one of described first resistance 301a
The grid of end and described first MOS transistor 301b connects the outfan of described pulse generating circuit 20, described first resistance
The other end of 301a connects drain electrode and the described signal receiving device 300 of described second MOS transistor 301c；A described MOS
The source electrode of transistor 301b connects external power source, and the drain electrode of described first MOS transistor 301b connects described second MOS transistor
The source electrode of 301c；The grid of described second MOS transistor 301c and the grid connection of described 3rd MOS transistor 301d are described partially
Put regulation circuit 302, described second MOS transistor 301c drain electrode connect described 3rd MOS transistor 301d drain electrode and
Described signal receiving device 300；The source electrode of described 3rd MOS transistor 301d connects the leakage of described 4th MOS transistor 301e
Pole, the grid of described 4th MOS transistor 301e connects described pulse generating circuit, the source of described 4th MOS transistor 301e
Pole ground connection.By changing the second MOS transistor 301c and the grid voltage of the 3rd MOS transistor 301d, thus it is possible to vary output knot
The equivalent output impedance of point, thus play the effect of output impedance regulation.The output impedance of described power driving circuit 30 is permissible
It is adjusted to the value of the input impedance being equal to or approaching described signal receiving device 300, thus realizes power match output.
In one embodiment, described sender unit 100 may also include and is connected to described pulse generating circuit 20
And the peaker 50 between power driving circuit 30；Described digital pulse signal D4 is carried out at differential by described peaker 50
Differential signal D5 is exported to described power driving circuit 30 after reason.The effect of described differentiation element is to remove described digit pulse letter
The flip-flop contained in number D4, and the signal component that will be suitable for the frequency range of transmission flows to the power driving circuit 30 of rear class,
Carry out power amplification and output.
Fig. 5 is the structural representation of the communicator of an embodiment.Described communicator comprises the steps that
Sender unit 100, first sensor 200A, the second sensor 200B, and signal receiving device 300；
The outfan of the power driving circuit of described sender unit 100 and the input of described first sensor 200A
Being connected, the outfan of described first sensor 200A is connected with the input of described second sensor 200B by transmission channel
Connecing, the outfan of described second sensor 200B is connected with described signal receiving device 300.
Wherein, signal generation apparatus 40 can produce raw baseband signal S1, and exports sender unit 100, institute
State sender unit 100 and can generate digital pulse signal D4, and finally output is used for the OOK narrow pulse signal S2 of communication.Institute
Stating first sensor 200A and signal S2 can be coupled to channel, signal S2 is after transmission, then through the second sensor
200B detection obtains signal S2 ', and described signal receiving device 300 can restore raw baseband signal after S2 ' reception being processed.
In one embodiment, described first sensor 200A and the second sensor 200B may be mounted at wearable device
Or in implantation equipment, such as, it is worn on the blood oxygen transducer of finger tip, Wrist watch type blood glucose sensor, Implantable ECG monitoring sensing
Device, implanted eeg signal acquisition sensor etc..Described wearable device or implantation equipment can be carried by user, such that it is able to
Using user as telecommunication media, between sender unit 100 and signal receiving device 300, realize communication.
The embodiment of described sender unit is identical with above-mentioned sender unit, and here is omitted.
This utility model improves band efficiency and the data transmission rate of human body channel, and system is operated in digital touching
Hairdo state, can bring the per bit energy consumption of system with low-power consumption, low complex degree, advantage at a high speed in realization and significantly drop
Low, and CMOS integrated circuit technology can be used completely to realize, and there is not large-area integrated resistor and electric capacity shaping circuit, suitable
Conjunction is integrated in SOC, it is easy to promote.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the common skill of this area
For art personnel, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (9)
1. a sender unit, it is characterised in that including:
Modulation circuit, pulse generating circuit and the power driving circuit of output impedance adjustable；
The input of described modulation circuit and the electrical level judging input of described pulse generating circuit connect signal respectively and fill
The outfan put, the outfan of described modulation circuit connects the signal input part of described pulse generating circuit, described pulse generation
The outfan of circuit connects the input of described power driving circuit, and the outfan of described power driving circuit connects signal and receives
Device；
The described primary signal that signal generation apparatus is produced by described modulation circuit is modulated, and exports modulated signal to pulse
Circuit occurs, and described modulated signal is converted to digital pulse signal and exports to power driving circuit by described pulse generating circuit,
Described power driving circuit regulates the effective output of described digital pulse signal and exports.
Sender unit the most according to claim 1, it is characterised in that also include:
NRZ produces circuit；
Described NRZ produces the input of circuit and is connected to described signal generation apparatus, and described NRZ produces the output of circuit
End is connected to the electrical level judging input of described modulation circuit and described pulse generating circuit；
Described primary signal is converted to described NRZ generation circuit NRZ and output is sent out to described modulation circuit and pulse
Raw circuit.
Sender unit the most according to claim 1, it is characterised in that also include:
Peaker；
The input of described peaker and outfan connect described pulse generating circuit and power driving circuit respectively；
After described peaker carries out differential process to described digital pulse signal, described power driving circuit is arrived in output.
Sender unit the most according to claim 1, it is characterised in that described pulse generating circuit includes:
Level sensitive circuit, counting circuit and pulse generation electronic circuit；
The input of described level sensitive circuit connects the outfan of described signal generation apparatus, described level sensitive circuit defeated
The enable going out state output terminal and described pulse generation electronic circuit that end connects described counting circuit controls end；
The counting input end of described counting circuit connects the outfan of described modulation circuit, and the outfan of described counting circuit connects
The tally control end of described pulse generation electronic circuit；
The outfan of described pulse generation electronic circuit connects the input of described power driving circuit.
Sender unit the most according to claim 1, it is characterised in that described power driving circuit includes:
Push-pull power amplifier circuit and bias set circuti；
The signal input part of described push-pull power amplifier circuit is connected with the outfan of described pulse generating circuit, described in recommend
The bias input end of power amplification circuit is connected with the outfan of described bias set circuti, described push-pull power amplifier circuit
Outfan be connected with described signal receiving device.
Sender unit the most according to claim 5, it is characterised in that described push-pull power amplifier circuit includes:
First resistance, the first MOS transistor, the second MOS transistor, the 3rd MOS transistor and the 4th MOS transistor；
One end of described first resistance and the grid of described first MOS transistor connect the outfan of described pulse generating circuit,
The other end of described first resistance connects the drain electrode of described second MOS transistor and described signal receiving device；
The source electrode of described first MOS transistor connects external power source, and the drain electrode of described first MOS transistor connects described second
The source electrode of MOS transistor；
The grid of described second MOS transistor and the grid of described 3rd MOS transistor connect described bias set circuti, described
The drain electrode of the second MOS transistor connects the drain electrode of described 3rd MOS transistor and described signal receiving device；
The source electrode of described 3rd MOS transistor connects the drain electrode of described 4th MOS transistor, the grid of described 4th MOS transistor
Pole connects described pulse generating circuit, the source ground of described 4th MOS transistor.
Sender unit the most according to claim 1, it is characterised in that described modulation circuit, pulse generating circuit and
Power driving circuit is integrated in SOC.
8. according to the sender unit described in claim 1 to 7 any one, it is characterised in that described sender unit
It is arranged in wearable device.
9. a communicator, it is characterised in that including:
Sender unit as described in claim 1 to 8 any one, first sensor, the second sensor, and signal connect
Receiving apparatus；
The outfan of the power driving circuit of described sender unit is connected with the input of described first sensor, described
The outfan of first sensor is connected by transmission channel with the input of described second sensor, described second sensor
Outfan is connected with described signal receiving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713908.1U CN205883209U (en) | 2016-07-06 | 2016-07-06 | OOK pulse signal emitter and communication device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713908.1U CN205883209U (en) | 2016-07-06 | 2016-07-06 | OOK pulse signal emitter and communication device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205883209U true CN205883209U (en) | 2017-01-11 |
Family
ID=57695000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620713908.1U Expired - Fee Related CN205883209U (en) | 2016-07-06 | 2016-07-06 | OOK pulse signal emitter and communication device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205883209U (en) |
-
2016
- 2016-07-06 CN CN201620713908.1U patent/CN205883209U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20190706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |