CN102571366B - Method for reducing power consumption of communication device and related device - Google Patents
Method for reducing power consumption of communication device and related device Download PDFInfo
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Abstract
The invention discloses a method and a related device for reducing power consumption of a communication device, wherein the communication device comprises: an analog-to-digital converter for converting an analog input signal to a digital input signal; an equalizer module, coupled to the adc, for processing the digital input signal to generate an equalized signal; a data slicer coupled to the equalizer module for generating an output signal according to the equalized signal; and a control unit coupled to the equalizer module and the data slicer; before the equalizer module enters the power saving mode, the control unit and/or the equalizer module stores at least one signal equalization parameter of the equalizer module, and when the communication device receives a specific control signal, the equalizer module loads the at least one signal equalization parameter for operation.
Description
Technical field
The present invention relates to a kind of communicator, especially relate to the side of a kind of power consumption reducing communicator
Method and relevant apparatus.
Background technology
Along with the continuous lifting of transmission rate request, communicator (such as: Ethernet device)
The used heat of power consumption and discharge is the highest so that the energy use efficiency of communicator becomes industry
The subject under discussion quite paid close attention to.
Such as, in definition high energy efficiency Ethernet (Energy Efficient Ethernet, EEE)
In IEEE 802.3az standard, it is allowed to the transmitter and receiver (Transceiver) of Ethernet device without
Battery saving mode (Quiet mode) can be entered, it is not necessary to lasting sends idle signal when transmitting data, with
Reduce the power consumption of Ethernet device.
But, unaffected in order to ensure data transmission efficiency, the transmitter and receiver of Ethernet device is necessary
The preparation before receiving data is completed in very short time after leaving battery saving mode.Such requirement is significantly
Add the design difficulty of transmitter and receiver circuit, cause Ethernet device to be difficult to simultaneously in circuit design
Take into account the target that high-transmission usefulness is different from energy use efficiency the two.
Summary of the invention
In view of this, the transmitter and receiver framework that can simultaneously take into account transmission usefulness and energy use efficiency is industry
In the urgent need to solution.
Present description provides the embodiment of a kind of communicator, it includes: an Analog-digital Converter
Device, for being converted into a digital input signals by an analog input signal；One equalizer module, couples
In this analog-digital converter, it is used for processing this digital input signals, to produce first signal；One
Data slicer, is coupled to this equalizer module, in order to produce an output signal according to this equating signal；
And a control unit, it is coupled to this equalizer module and this data slicer；Wherein, in this equilibrium
Before device module enters battery saving mode, this control unit or this equalizer module can preserve this equalizer module
At least one signal etc. change parameter, and when this communicator receives a specific control signal, this equilibrium
Device module can load this at least one signal etc. and change parameter to operate.
This specification additionally provides the embodiment of a kind of method of power consumption reducing a communicator, its
Include: utilize an analog-digital converter that one analog input signal is converted into a numeral input letter
Number；An equalizer module is utilized to process this digital input signals to produce first signal；According to such
Change signal and produce an output signal；Before this equalizer module enters battery saving mode, preserve this equalizer
At least one signals of module etc. change parameter；When receiving an entrance power-saving mode instruction, by this equalizer
The running of module switches to battery saving mode；And when receiving a specific control signal, load this at least
One signals etc. change parameter to operate this equalizer module.
Present description provides the embodiment of another kind of communicator, it includes: one receives circuit；
And a control unit, it is coupled to this reception circuit；Wherein, battery saving mode is entered at this reception circuit
Before, this control unit maybe this reception circuit can preserve at least one signal of this reception circuit etc. and change parameter,
And when this communicator receives a specific control signal, this reception circuit can load this at least one signal
Deng change parameter to operate.
This specification separately provides the embodiment of a kind of method of power consumption reducing a communicator, its
Include: before a reception circuit of this communicator enters battery saving mode, preserve this reception circuit
At least one signals etc. change parameter；When receiving an entrance power-saving mode instruction, by the fortune of this reception circuit
Switch to a battery saving mode；And when receiving a specific control signal, load this at least one signal
Deng change parameter to operate this reception circuit.
Accompanying drawing explanation
Fig. 1 is the stream after the present invention reduces an embodiment simplification of the method for the power consumption of communicator
Cheng Tu.
Fig. 2 is the local function module map after an embodiment simplification of the communicator of the present invention.
Main element symbol description
200 communicator 202 adders
210 analog front circuit 220 analog-digital converters
230 time sequence restoring circuit 240 equalizer modules
250 data slicer 260 echo cancellers
The 270 long-range crosstalk cancellers of near-end crosstalk canceller 280
290 control units
Detailed description of the invention
Below in conjunction with correlative type, embodiments of the present invention are described.In these are graphic, identical
Label represents identical or functionally similar element.
In the middle of description and follow-up claim, employ some vocabulary censure specifically
Element.Person with usual knowledge in their respective areas is it is to be appreciated that same element may be with different
Noun is called.This specification and follow-up claim are not used as district with the difference of title
The mode of subelement, but the benchmark distinguished it is used as with element difference functionally.Say in the whole text
" comprising " mentioned in the middle of bright book and follow-up claim is an open term, therefore should solve
It is interpreted into " comprise but be not limited to ... ".It addition, " coupling " word comprises any direct and indirect at this
Connection means.Therefore, if a first device is coupled to one second device described in literary composition, then representing should
First device can directly (include through electric connection or be wirelessly transferred, the signal connection side such as optical delivery
Formula) it is connected to this second device, or the indirectly electrical or signal company through other device or connection means
It is connected to this second device.
Fig. 1 is the stream after the present invention reduces an embodiment simplification of the method for the power consumption of communicator
Journey Figure 100.The function mode of flow process Figure 100 is further illustrated below in conjunction with correlative type.
First, refer to Fig. 2, be the reception electricity of the communicator of one embodiment of the invention depicted in it
Local function square module map after the simplification of road 200.Include as in figure 2 it is shown, receive circuit 200
AFE (analog front end) (Analog-front-end, AFE) circuit 210, analog-digital converter (ADC)
220, time sequence restoring circuit 230, equalizer module 240, data slicer (Data Slicer) 250,
Echo canceller (Echo Canceller) 260, near-end crosstalk canceller (Near-end Cross Talk
Canceller) 270, long-range crosstalk canceller (Far-end Cross Talk Canceller) 280, with
And control unit 290.
It practice, time sequence restoring circuit 230 can realize with various phase-locked loops, such as, simulate lock
Phase loop, digital phase locked loop or analog-digital hybrid type phase-locked loop etc..Equalizer module 240
Feed forward equalizer (Feed Forward Equalizer), feedback equalizer (Feed Back can be comprised
And/or the element of gain amplifier etc. Equalizer).Data slicer 250 can use various side
Formula realizes, and such as, data slicer 250 can directly calculate output letter according to the size of equating signal
Number, or use Viterbi decoder (Viterbi Decoder), turbine decoder (Turbo Decoder)
The function of data slicer 250 is realized in circuit.
On reality is applied, receive circuit 200 and can be used to fill as 10GBASE-T Ethernet
Put the part receiving circuit that passes of (or Ethernet device more at a high speed), and receive circuit 200
In difference in functionality module, may be integrally incorporated in same circuit.
In flow process 110, receive circuit 200 and can perform normal operator scheme.Such as, before simulation
Terminal circuit 210 can receive and process an analog input signal in flow process 110.Analog-digital converter
The 220 operating frequency runnings that can provide according to time sequence restoring circuit 230, by analog front circuit 210
Analog input signal after process is converted into a digital input signals.It is coupled to analog-digital converter
The equalizer module 240 of 220, can process this digital input signals, to produce first signal.Number
It is coupled to equalizer module 240 according to sickle 250, can be according to the gradeization of equalizer module 240 output
Signal produces an output signal.In other words, analog front circuit 210, analog-digital converter 220,
Equalizer module 240 and data slicer 250, constitute and receive the mould that circuit 200 is received
The main signal intending input signal processes path.It addition, echo canceller 260 can produce echo cancellation
Signal, near-end crosstalk canceller 270 can produce near-end crosstalk and eliminate signal, and remotely crosstalk canceller
280 can produce long-range cross talk cancellation signal.
In the embodiment of fig. 2, echo cancellation signal, near-end crosstalk eliminate signal and remotely go here and there
Sound eliminates signal, can be applied to analog-digital converter 220 and equalizer module by adder 202
On signal path between 240.This is only an embodiment, rather than limits to the actual embodiment party of the present invention
Formula.It practice, also echo cancellation signal, near-end crosstalk elimination signal and long-range cross-talk can be disappeared
Other position on signal processing path it is applied to separately or together except signal.Such as, can be by suitably
Circuit (such as, adder), by echo cancellation signal, near-end crosstalk eliminate signal, Yi Jiyuan
Journey cross talk cancellation signal, is applied to the letter between equalizer module 240 and data slicer 250 together
On number path, the signal road that is applied between analog front circuit 210 and analog-digital converter 220
On footpath or be applied to the appropriate location in analog front circuit 210.In another embodiment,
This echo cancellation signal can be eliminated signal with this near-end crosstalk, be applied to analog front circuit together
On signal path between 210 and analog-digital converter 220, and by this long-range cross talk cancellation signal
It is applied on the signal path between analog-digital converter 220 and equalizer module 240.
In flow process 120, receive circuit 200 and determine whether to be switched to battery saving mode.This
Battery saving mode alleged by, can be power saving mould defined in high energy efficiency Ethernet (EEE) standard
Battery saving mode or other self-defining defined in formula (Quiet Mode), other energy conservation standard
Battery saving mode.In other words, the method described by flow process Figure 100 is applicable not only to support EEE mark
Accurate communicator, is also applicable to support the communicator of the battery saving mode of various self-defining.
Can be from medium access control layer (MAC) electricity of communicator it practice, receive circuit 200
Road (not being illustrated in figure) or entity coding floor (PCS) circuit (not being illustrated in figure), learn and connect
Receive whether circuit 200 will be switched to battery saving mode.Such as, in one embodiment, circuit is received
200 can transmit LPI (Low Power defined in EEE standard in receiving medium access control layer circuit
Idle), during control instruction, the program of flow process 130 is entered.In another embodiment, circuit 200 is received
The spy that can be sent in other control element received in control unit 290 or this communicator or circuit
When surely instructing, enter the program of flow process 130.
In flow process 130, control unit 290 or equalizer module 240 can preserve equalizer module
At least one signals of 240 etc. change parameter.In one embodiment, control unit 290 can be in flow process 130
Middle stopping updates equalizer module 240, and the signal etc. making equalizer module 240 preserve at that time changes parameter,
Such as feed forward equalizer, feedback equalizer and/or gain amplifier partially or fully coefficient at that time.
In another embodiment, equalizer module 240 signal at that time etc. can be changed ginseng by control unit 290
Number, buffer or the internal memory etc. that are saved in other store in element.
It addition, in flow process 130, control unit 290 or echo canceller 260 can preserve echo and disappear
Except at least one echo cancellation parameters of device 260, (that is echo canceller 260 is partially or fully
Number).It practice, control unit 290 can stop updating echo canceller 260, make echo canceller
260 preserve echo cancellation parameters at that time.Or, control unit 290 can be by echo canceller 260
Echo cancellation parameters at that time, buffer or the internal memory etc. that are saved in other store in element.
Similarly, control unit 290 or near-end crosstalk canceller 270 can preserve near-end crosstalk canceller
At least one near-end crosstalk of 270 eliminates parameter, and (that is near-end crosstalk canceller 270 is partially or fully
Coefficient).It practice, control unit 290 can stop updating near-end crosstalk canceller 270, make near-end crosstalk
Sound canceller 270 preserves near-end crosstalk at that time and eliminates parameter.Or, control unit 290 can be nearly
End crosstalk canceller 270 near-end crosstalk at that time eliminates parameter, is saved in other buffer or interior
Deposit etc. and to store in element.
Additionally, in flow process 130, control unit 290 or remotely crosstalk canceller 280 can preserve far
At least the one of journey crosstalk canceller 280 remotely Cross-talk cancellation parameter (that is remotely crosstalk canceller 280
Partially or fully coefficient).It practice, control unit 290 can stop updating long-range crosstalk canceller
280, make long-range crosstalk canceller 280 preserve long-range Cross-talk cancellation parameter at that time.Or, control
Long-range crosstalk canceller 280 long-range Cross-talk cancellation parameter at that time can be saved in other by unit 290
Buffer or internal memory etc. stores in element.
Then, receive circuit 200 and can perform flow process 140, enter battery saving mode to save disappearing of electric power
Consumption.Now, the running of circuit 200 meeting close portion subelement is received (even if also these elements enter province
Power mode).Such as, receive circuit 200 and can close analog front circuit 210, analog-digital converter
220, time sequence restoring circuit 230, equalizer module 240, data slicer 250, echo canceller
260, near-end crosstalk canceller 270 and/or the running of long-range crosstalk canceller 280, connect to reduce
Receive the power consumption of circuit 200.
In flow process 150, receiving circuit 200 according to whether receiving specific control signal can come
Decide whether to remain in battery saving mode.If receiving circuit 200 to receive specific control signal,
Flow process 160 can be performed；Otherwise, then battery saving mode can be rested on.In one embodiment, this specific control
Signal processed can be renewal (Refresh) signal defined in EEE standard, warning (Alert)
Signal or wake up (Wake Up) signal up.In another embodiment, this specific control signal can
To be the control signal of the control signal defined in other standard or other self-defining.
In flow process 160, reception circuit 200 Central Plains is introduced into the element of battery saving mode and can proceed by
Running.When these elements all complete the adjustment of operating parameter, receive circuit 200 and just can start to receive
The data that other the most online communicator transmits.Power saving mould is left from reception circuit 200 for shortening
Formula can load previously existed to the length that can start to receive during this section of data prepares, equalizer module 240
The signals preserved in flow process 130 etc. change parameter to operate.That is, equalizer module 240 from
When opening battery saving mode, the change parameters such as the signal that before entering battery saving mode, adjustment has completed can be directly utilized and enter
Row running, it is not necessary to spend additional time the adjustment re-starting the change parameters such as signal.
In flow process 160, echo canceller 260 can load returning of previously having been preserved in flow process 130
Sound eliminates parameter (that is entering the echo cancellation parameters that before battery saving mode, adjustment completes) to transport
Make, it is not necessary to spend additional time the adjustment re-starting echo cancellation parameters.Near-end crosstalk canceller
270 can load the near-end crosstalk previously preserved in flow process 130 eliminates parameter and (that is enters power saving
Near-end crosstalk that before pattern, adjustment has completed eliminates parameter) to operate, it is not necessary to when spending extra
Between re-start near-end crosstalk eliminate parameter adjustment.Similarly, long-range crosstalk canceller 280 can add
Carry the long-range Cross-talk cancellation parameter previously preserved in flow process 130 and (that is enter before battery saving mode
The long-range Cross-talk cancellation parameter that adjustment completes) to operate, it is not necessary to spend additional time and again enter
The adjustment of the long-range Cross-talk cancellation parameter of row.
Therefore, after receiving specific control signal, as long as receiving circuit 200 to complete time sequence reply electricity
The Selecting phasing of road 230 output frequency signal, just can proceed by data transmission.In one embodiment,
Control unit 290 can control defeated in multiple outs of phase of time sequence restoring circuit 230 in flow process 160
Go out and switch between frequency signal.Control unit 290 meeting is defeated according to data slicer 250 generation
Going out the error amount of signal, control time sequence restoring circuit 230 selects one of them of the plurality of frequency signal,
Operating frequency as analog-digital converter 220 to be supplied to.For example, it is assumed that time sequence reply
Circuit 230 can produce the frequency signal of 64 outs of phase, and control unit 290 can control sequential and return
The frequency signal of output is switched in these 64 phase places by compound circuit 230 one by one, or 64 phases
Some phase place in Wei switches (such as, switching in 32 phase places the most wherein).Then,
The optional output frequency signal that the error amount of this output signal can be made to minimize of control unit 290,
It is used as this operating frequency.
In another embodiment, control unit 290 or time sequence restoring circuit 230 are gone back in flow process 130
The frequency parameter of time sequence restoring circuit 230 can be preserved.Therefore, time sequence restoring circuit 230 is in flow process 160
In can load the frequency parameter previously preserved in flow process 130 and restart, and control unit 290 is again
By the way of above-described embodiment, determine the optimal of the operating frequency that time sequence restoring circuit 230 produces
Phase place.
From preceding description, receive specific control signal when reception circuit 200 and leave power saving mould
During formula, as long as receiving circuit 200 to complete the output phase of time sequence restoring circuit 230 in control unit 290
After the selection of position, just can start the communicator with other and carry out data transmission, it is not necessary to spend longer
Extra time adjustment equalizer module 240 again, echo canceller 260, near-end crosstalk canceller
270 and the coefficient of long-range these elements of crosstalk canceller 280.Consequently, it is possible to receive circuit 200
The time delay during this section is transmitted to data can be proceeded by from leaving battery saving mode, just can be significantly
Shorten, therefore successfully can support in the case of the data transmission efficiency not affecting Ethernet device
The electricity-saving operation mode of this kind of energy conservation standard of high energy efficiency Ethernet.
In the foregoing, be using receive circuit 200 as 10GBASE-T Ethernet device (or
Ethernet device more at a high speed) the embodiment passing the part receiving circuit, communication dress being described
The method putting how flowchart 100.But this is only an embodiment, rather than the limitation present invention is real
Border range of application.
Indeed, it is possible to only use the partial function module receiving circuit 200 to be used as passing receipts circuit
A part.Such as, the biography receiving circuit 200 as 1000BASE-T Ethernet device is being utilized
In some embodiment of the part receiving circuit, if the biography of this 1000BASE-T Ethernet device is received
Circuit does not use long-range crosstalk canceller, the then functional module of the long-range crosstalk canceller 280 in Fig. 2,
And part about long-range crosstalk canceller 280 can save in the explanation of foregoing schemes Figure 100
Slightly.It addition, the biography receipts electricity receiving circuit 200 as 100BASE-TX Ethernet device will be utilized
In some embodiment of the part on road, if the biography of this 100BASE-T Ethernet device receives circuit
Do not use echo canceller, near-end crosstalk canceller and long-range crosstalk canceller, then can be by Fig. 2
Echo canceller 260, near-end crosstalk canceller 270 and the functional module of long-range crosstalk canceller 280,
And about echo canceller 260, near-end crosstalk canceller 270 in the explanation of foregoing schemes Figure 100
And the part of long-range crosstalk canceller 280 omitted.
It is known that the most all of wired communications standards has the operating mode of specification energy saving.
Such as, at HDMI Ethernet channel (HDMI Ethernet Channel, HEC) communication standard
In, the not yet power save mode of operation of the similar EEE standard of definition, therefore traditional HEC communicator is also
Do not support electricity-saving operation mode.
As it was previously stated, the method for the power consumption reducing communicator described by flow process Figure 100, not only
It is applicable to support the communicator of EEE standard, is also applicable to support the province of other dealer's self-defining
The communicator of power mode.In other words, even if the industry communication standard of some communicator (such as,
HEC standard) do not work out relevant electricity-saving operation mode, also can be by described by flow process Figure 100
Method is applied in the circuit design of these communicators, to improve the energy use of these communicators
Efficiency.
For example, the partial function module receiving circuit 200 can be used as HEC communication dress
That puts passes the part receiving circuit.Such as, if HEC communicator needs echo cancellation mechanism,
But need not Cross-talk cancellation mechanism, then can be by the near-end crosstalk canceller 270 in Fig. 2 and long-range cross-talk
These elements relevant in the functional module of both cancellers 280, and the explanation of foregoing schemes Figure 100
Part omitted.Now, the circuit 200 flow process 130 in flow process Figure 100 and flow process are received
The function mode of 160, can have a little different from previous embodiment.For the sake of for convenience of description, the most only
Circuit 200 is received in flow process 130 running with flow process 160, with aforementioned reality for the present embodiment
Execute example difference to be been described by.
In flow process 130, control unit 290 or echo canceller 260 can preserve echo canceller
Many groups echo cancellation parameters of 260.In the present embodiment, control unit 290 or echo canceller 260
Multiple echoes that the frequency signal of multiple outs of phase with time sequence restoring circuit 230 is corresponding can be preserved
Eliminate parameter.For example, it is assumed that time sequence restoring circuit 230 can produce the frequency letter of 64 outs of phase
Number, control unit 290 or echo canceller 260 can preserve corresponding with these 64 frequency signals
64 groups of echo cancellation parameters.Or, control unit 290 or echo canceller 260 also can only preserve with
Many groups echo cancellation parameters that component frequency signal in these 64 frequency signals is corresponding, such as 32
Group or 16 groups etc..It practice, control unit 290 or echo canceller 260 can be in echo cancellation
Device 260, during flow process 110 performs normal operation, is collected and by echo canceller more than 260
Group echo cancellation parameters, is saved in buffer or internal memory etc. and stores in element.
In flow process 160, receive circuit 200 and can leave battery saving mode.Now, circuit 200 is received
Central Plains is introduced into the element of battery saving mode can proceed by running.Identical with aforesaid embodiment, equilibrium
Device module 240 can load the signal etc. previously preserved in flow process 130 and change parameter to operate.
That is, when equalizer module 240 leaves battery saving mode, modulated before entrance battery saving mode can be directly utilized
The signals that school completes etc. are changed parameter and are operated, it is not necessary to spend additional time changes such as re-starting signal
The adjustment of parameter.
Then, control unit 290 can control the time sequence restoring circuit 230 output in multiple outs of phase
Switch between frequency signal.In time sequence restoring circuit 230 switches to the plurality of frequency signal
During one Candidate Frequency, echo canceller 260 can be from the many groups echo previously preserved flow process 130
Eliminate in parameter, load and correspond to one group of candidate's echo cancellation parameters of this Candidate Frequency to transport
Make；When time sequence restoring circuit 230 switches to another Candidate Frequency, echo canceller 260 then can add
Carrying another group candidate's echo cancellation parameters corresponding to operate, the rest may be inferred.That is, at that time
When sequence reflex circuit 230 switches in the frequency signal of the plurality of out of phase, echo canceller
260 also can switch in this many groups echo cancellation parameters accordingly.At time sequence restoring circuit 230
In the process switched one by one in the plurality of frequency signal, control unit 290 can observed data sickle
The error amount of 250 output signals produced, to determine that the optimum phase of this operating frequency disappears with this echo
Optimal echo cancellation parameters except device 260.
In the present embodiment, control unit 290 can select to make the output signal of data slicer 250
The frequency signal that minimizes of error amount and the pairing of echo cancellation parameters, be used as this operating frequency
Optimal echo cancellation parameters with echo canceller 260.
Similar with aforesaid embodiment, receive specific control signal when reception circuit 200 and leave province
During power mode, it is not necessary to spend the coefficient of the longer extra time of adjustment equalizer module 240 again,
Reception circuit 200 can be shortened from leaving battery saving mode to proceeding by during data transmit this section
Time delay.Therefore, receive the HEC communicator belonging to circuit 200 and just can not affect data
In the case of transmission usefulness, successfully support the power-save operation of this kind of energy conservation standard of high energy efficiency Ethernet
Pattern, to reduce power consumption.
The foregoing is only the preferred embodiments of the invention, all done it according to scope of the present invention patent
Impartial change and modification, all should belong to the covering scope of the present invention.
Claims (21)
1. a communicator, includes:
One analog-digital converter, for being converted into a numeral input by an analog input signal
Signal；
One equalizer module, is coupled to this analog-digital converter, is used for processing this numeral defeated
Enter signal, to produce first signal；
One data slicer, is coupled to this equalizer module, in order to produce according to this equating signal
A raw output signal；And
One control unit, is coupled to this equalizer module and this data slicer；
Wherein, before this communicator enters the battery saving mode not carried out data transmission, this control
Unit processed or this equalizer module can preserve at least one signal of this equalizer module etc. and change ginseng
Number, and when this communicator receives a specific control signal, this equalizer module can load
These at least one signals etc. change parameter to operate.
Communicator the most according to claim 1, wherein, this control unit can be by stopping more
The mode of this equalizer module new, at least one signal etc. preserving this equalizer module changes ginseng
Number.
Communicator the most according to claim 1, has additionally comprised:
One time sequence restoring circuit, for providing an operating frequency to this analog-digital converter；
Wherein, enter before battery saving mode at this time sequence restoring circuit, this control unit or this time
Sequence reflex circuit can preserve the frequency parameter of this time sequence restoring circuit, and when this communicator is received
During to this specific control signal, this time sequence restoring circuit can load preserved frequency parameter with
Operate.
Communicator the most according to claim 1, has additionally comprised:
One time sequence restoring circuit, for providing an operating frequency to this analog-digital converter；
Wherein, when this communicator receives this specific control signal, this control unit can depend on
According to the error amount of this output signal, control this time sequence restoring circuit and select multiple outs of phase
One of them of frequency signal is as this operating frequency.
Communicator the most according to claim 4, has additionally comprised:
One echo canceller, is used for producing and apply an echo cancellation signal and inputs in this simulation
On the signal processing path of signal, and before this echo canceller enters battery saving mode, this control
Unit processed or this echo canceller can preserve at least one echo cancellation ginseng of this echo canceller
Number；
Wherein, when this communicator receives this specific control signal, this echo canceller meeting
Load this at least one echo cancellation parameters to operate.
Communicator the most according to claim 5, wherein, enters power saving at this echo canceller
Before pattern, this control unit or this echo canceller can preserve and the frequency of the plurality of out of phase
Many groups echo cancellation parameters that rate signal is corresponding, and when this time sequence restoring circuit switches to this
During a Candidate Frequency in multiple frequency signals, this echo canceller can be loaded into this many groups echo
Eliminate in parameter and correspond to one group of candidate's echo cancellation parameters of this Candidate Frequency to transport
Make.
Communicator the most according to claim 5, has additionally comprised:
One near-end crosstalk canceller, is used for producing and apply a near-end crosstalk and eliminates signal in this
On the signal processing path of analog input signal, and enter power saving at this near-end crosstalk canceller
Before pattern, this control unit or this near-end crosstalk canceller can preserve this near-end crosstalk canceller
At least one near-end crosstalk eliminate parameter；
Wherein, when this communicator receives this specific control signal, this near-end crosstalk eliminates
Device can load this at least one near-end crosstalk and eliminate parameter to operate.
Communicator the most according to claim 7, has additionally comprised:
One long-range crosstalk canceller, is used for producing and apply a long-range cross talk cancellation signal in this
On the signal processing path of analog input signal, and enter power saving at this long-range crosstalk canceller
Before pattern, this control unit or this long-range crosstalk canceller can preserve this long-range crosstalk canceller
At least one long-range Cross-talk cancellation parameter；
Wherein, after the phase place determining this operating frequency, this long-range crosstalk canceller can load
This at least one long-range Cross-talk cancellation parameter is to operate.
Communicator the most according to claim 4, it is one to meet HDMI Ethernet channel
The communicator of (HDMI Ethernet Channel, HEC) standard.
Communicator the most according to claim 1, wherein, this specific control signal comprises one more
Newly (Refresh) signal, warning (Alert) signal or wake up (Wake Up) up
Signal.
The method of 11. 1 kinds of power consumption reducing a communicator, includes:
Utilize an analog-digital converter that one analog input signal is converted into a numeral input
Signal；
An equalizer module is utilized to process this digital input signals to produce first signal；
An output signal is produced according to this equating signal；
Before this communicator enters the battery saving mode not carried out data transmission, preserve this equilibrium
At least one signals of device module etc. change parameter；
When receiving an entrance power-saving mode instruction, the running of this equalizer module is switched to
Battery saving mode；And
When receiving a specific control signal, load this at least one signal etc. and change parameter with running
This equalizer module.
12. methods according to claim 11, wherein, preserve this at least one signal etc. and change parameter
Flow process includes:
By the way of stopping updating this equalizer module, preserve this equalizer module at least
One signals etc. change parameter.
13. methods according to claim 11, have additionally comprised:
A time sequence restoring circuit is utilized to provide an operating frequency to this analog-digital converter；
Before this time sequence restoring circuit enters battery saving mode, preserve the frequency of this time sequence restoring circuit
Rate parameter；And
When receiving this specific control signal, when loading the frequency parameter preserved to operate this
Sequence reflex circuit.
14. methods according to claim 11, have additionally comprised:
A time sequence restoring circuit is utilized to provide an operating frequency to this analog-digital converter；With
And
When receiving this specific control signal, according to the error amount of this output signal, controlling should
One of them of the frequency signal of the time sequence restoring circuit multiple outs of phase of selection is as this work
Frequency.
15. methods according to claim 14, have additionally comprised:
Perform an echo cancellation computing to produce an echo cancellation signal；
Apply this echo cancellation signal on the signal processing path of this analog input signal；
Before this equalizer module enters battery saving mode, preserve this echo cancellation computing at least
One echo cancellation parameters；And
When receiving this specific control signal, load this at least one echo cancellation parameters to carry out
This echo cancellation computing.
16. methods according to claim 15, have additionally comprised:
Before this equalizer module enters battery saving mode, preserve many groups of this echo cancellation computing
Echo cancellation parameters, wherein, this many groups echo cancellation parameters corresponds respectively to the plurality of difference
The frequency signal of phase place；
When a Candidate Frequency during this time sequence restoring circuit switches to the plurality of frequency signal,
It is loaded in this many groups echo cancellation parameters and corresponds to one group of candidate's echo of this Candidate Frequency and disappear
Except parameter is to carry out this echo cancellation computing.
17. methods according to claim 15, have additionally comprised:
Perform a near-end crosstalk and eliminate computing to produce a near-end crosstalk elimination signal；
Apply this near-end crosstalk and eliminate signal in the signal processing path of this analog input signal
On；
Before this equalizer module enters battery saving mode, preserve this near-end crosstalk and eliminate computing
At least one near-end crosstalk eliminates parameter；And
When receiving this specific control signal, load this at least one near-end crosstalk eliminate parameter with
Carry out this near-end crosstalk and eliminate computing.
18. methods according to claim 17, have additionally comprised:
Perform a long-range Cross-talk cancellation computing to produce a long-range cross talk cancellation signal；
Apply this long-range cross talk cancellation signal in the signal processing path of this analog input signal
On；
Before this equalizer module enters battery saving mode, preserve this long-range Cross-talk cancellation computing
At least one long-range Cross-talk cancellation parameter；And
When receiving this specific control signal, load this at least one long-range Cross-talk cancellation parameter with
Carry out this long-range Cross-talk cancellation computing.
19. methods according to claim 11, wherein, this specific control signal comprises a renewal
(Refresh) signal, warning (Alert) signal or wake up (Wake Up) up
Signal.
20. 1 kinds of communicators, it includes:
One receives circuit；And
One control unit, is coupled to this reception circuit；
Wherein, before this communicator enters the battery saving mode not carried out data transmission, this control
Unit processed maybe this reception circuit can preserve at least one signal of this reception circuit etc. and change parameter, and
When this communicator receives a specific control signal, this reception circuit can load this at least one
Signals etc. change parameter to operate.
21. 1 kinds of methods of power consumption reducing communicators, it includes:
Before this communicator enters the battery saving mode not carried out data transmission, preserve and receive electricity
At least one signals on road etc. change parameter；
When receiving an entrance power-saving mode instruction, the running of this reception circuit is switched to one
Battery saving mode；And
When receiving a specific control signal, load this at least one signal etc. and change parameter with running
This reception circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099146590A TWI462519B (en) | 2010-12-29 | 2010-12-29 | Method and apparatus for reducing power consumption of communication device |
| TW99146590 | 2010-12-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102571366A CN102571366A (en) | 2012-07-11 |
| CN102571366B true CN102571366B (en) | 2016-12-14 |
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|---|---|---|---|---|
| CN1482747A (en) * | 2002-06-18 | 2004-03-17 | ӡ�����Ƽ��ɷ�����˾ | Equalizer apparatus and method using maximum likelihood sequence estimation for wireless receivers |
| CN101303873A (en) * | 2007-05-08 | 2008-11-12 | 联发科技股份有限公司 | Device, method and optical disk machine for processing RF signal |
| CN101577686A (en) * | 2008-05-09 | 2009-11-11 | 鸿富锦精密工业（深圳）有限公司 | Equalizer and connector provided with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482747A (en) * | 2002-06-18 | 2004-03-17 | ӡ�����Ƽ��ɷ�����˾ | Equalizer apparatus and method using maximum likelihood sequence estimation for wireless receivers |
| CN101303873A (en) * | 2007-05-08 | 2008-11-12 | 联发科技股份有限公司 | Device, method and optical disk machine for processing RF signal |
| CN101577686A (en) * | 2008-05-09 | 2009-11-11 | 鸿富锦精密工业（深圳）有限公司 | Equalizer and connector provided with same |
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