CN101257521A - Communicating system, area network system, physical layer circuit of network interface chip group - Google Patents
Communicating system, area network system, physical layer circuit of network interface chip group Download PDFInfo
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- CN101257521A CN101257521A CNA2007100847215A CN200710084721A CN101257521A CN 101257521 A CN101257521 A CN 101257521A CN A2007100847215 A CNA2007100847215 A CN A2007100847215A CN 200710084721 A CN200710084721 A CN 200710084721A CN 101257521 A CN101257521 A CN 101257521A
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Abstract
The invention reveals physical layer electrocircuits of a communication system and a network interface chip group in a locale network system, comprising coding device electrocircuits, transmitter electrocircuits, a receiving filter connected the telephone line for receiving input signals and filtering noises, an analog-digital converter, a clock signal producer and decoder circuits for decoding the codes from the analog-digital converter to electronic signals. The invention also reveals the network interface chip group using this physical layer, and a locale network communication system and a macrozone communication system using this network interface chip group. The invention utilizes existed telephone lines to transmit internet network seal parcels to connect various computers and peripheral apparatus to form a locale network system which utilizes the systematical network interface chip group and the interface chip group physical layer electrocircuits and the formed communication system.
Description
Technical field
The present invention relates to a kind of communication system, the LAN system, its socket chipset and socket chipset physical layer circuit thereof, particularly can utilize existing telephone wire to transmit Fast Ethernet network package about a kind of, to link various computers and ancillary equipment, form the system of a LAN, use socket chipset and interface chipset physical layer circuit in this system, and thereby the communication system that forms.
Background technology
Along with the network communications technology is maked rapid progress, network service has become the device of each family and relevant departments' indispensability.Various network card or network chip groups for the binding computer equipment are arisen at the historic moment.No matter utilize wire transmission or wireless transmission, all bring incomparable facility in life.
More common network card or network chip group is mainly wireless mode and wired broadband mode on market at present.The advantage of cable network interface chipset is the frequency range broad, and cost is lower.But must use thick grid line, and need other thread-changing, influence usability and attractive in appearance.Though the wireless network interface chipset has the advantage of the thread-changing of not needing, its cost is higher, and frequency range is not wide, needs many computer equipments to share same frequency range, is unfavorable for transmission.In addition, the internet security of wireless network is denounced by all circles always, also is its shortcoming.
Except that above-mentioned two kinds, utilize power line to constitute network, also be a kind of feasible practice.But, this kind network bandwidth is not wide, and cost is higher.Though can use existing network of wires, because of belonging to bus architecture, extensibility scalability is not good.At present the practice of utilizing existing telephone line architecture network is being arranged also on the market.Common mode is so-called " home PNA " technology.But, home PNA not only cost is higher, and its frequency range is for the poorest in the all-network system at present.Because of using bus architecture, extensibility is still not good in addition.Above technology is all the half-duplex load mode.
With existing communication technology framework, use telephone wire framework LAN, should be the ideal practice.Telephone wire is because exist already for many years, and is with low cost, and usually in newly-built building, set up and finished.Computer hardware cheap and that frequency range is sufficient if can be provided, carry out transfer of data, should belong to the ideal practice by telephone line.
Summary of the invention
The object of the present invention is to provide a kind of LAN system of novelty, can utilize existing home telephone circuit framework LAN, communicate.
Purpose of the present invention also is to provide a kind of physical layer circuit that connects telephone wire and computer equipment, uses so that this computer replaces grid line sending and receiving data by telephone wire.Physical layer circuit of the present invention also can utilize Fast Ethernet network MAC layer and the technology of widely using, and is very convenient.
The present invention discloses the physical layer circuit of a kind of LAN grid interface chipset, this physical layer circuit can be arranged in LAN adapter or the socket chipset, the computer equipment that links this adapter or interface chipset is provided, carry out the data sending and receiving by telephone wire, this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
The present invention also discloses a kind of communication system, this communication system comprises at least one telephone wire, and the physical layer circuit that connects the LAN grid interface chipset at these telephone wire two ends, this physical layer circuit can be arranged on LAN interface chipset, or contain in the adapter of this socket chipset, the computer equipment that links this interface chipset is provided, carries out the data sending and receiving by this telephone wire, this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code computing that this analog-digital converter produced.
The present invention also discloses a kind of area communication network system, this system comprises at least one telephone wire, and the physical layer circuit that connects the LAN grid interface chipset at these telephone wire two ends, this physical layer circuit can be arranged on LAN interface chipset, or contain in the adapter of this socket chipset, the computer equipment that links this interface chipset is provided, carries out full duplex or the sending and receiving of half-duplex data by this telephone wire, this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
The present invention also discloses the socket chipset of a kind of area communication network system, and this socket chipset comprises at least two physical layer circuits, and the exchanges data circuit that connects these at least two physical layer circuits.Wherein, this physical layer circuit can be arranged on LAN interface chipset, or contains in the adapter of this socket chipset, and the computer equipment that links this interface chipset is provided, and carries out the data sending and receiving by a telephone wire, and this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
This exchanges data circuit can be a hub, interchanger, router OR circuit etc., can will send into the device that data are delivered to the physical layer circuit of appointment by a physical layer circuit.
The present invention also discloses a kind of communication system, this communication system comprises at least one telephone wire, and the socket chipset that connects these telephone wire two ends, this socket chipset comprises at least two physical layer circuits, and the exchanges data circuit that connects these at least two physical layer circuits, wherein, this physical layer circuit can be arranged on LAN interface chipset, or contain in the adapter of this socket chipset, the computer equipment that links this interface chipset is provided, carry out the data sending and receiving by this telephone wire, this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
This exchanges data circuit can be a hub, interchanger, router OR circuit etc., can will send into the device that data are delivered to the physical layer circuit of appointment by a physical layer circuit.
The present invention also discloses a kind of area communication network system, this system comprises at least one telephone wire, and the socket chipset that connects the telephone wire two ends, this socket chipset comprises at least two physical layer circuits, and the exchanges data circuit that connects these at least two physical layer circuits.Wherein, this physical layer circuit can be arranged on LAN interface chipset, or contains in the adapter of this socket chipset, and the computer equipment that links this interface chipset is provided, and carries out the data sending and receiving by this telephone wire, and this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
This exchanges data circuit can be a hub, interchanger, router OR circuit etc. can will send into the device that data are delivered to the physical layer circuit of appointment by a physical layer circuit.
The present invention also discloses a kind of area communication network system, this system comprises at least one telephone wire, and the network card that connects this telephone wire one end, and the network card physical layer circuit that connects its other end, wherein, this network card comprises at least two these physical layer circuits, and the exchanges data circuit that connects these at least two physical layer circuits, wherein, this physical layer circuit can be arranged on the LAN adapter, the computer equipment that links this adapter is provided, carries out the data sending and receiving by telephone wire, this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
This exchanges data circuit can be a hub, interchanger, router OR circuit etc. can will send into the device that data are delivered to the physical layer circuit of appointment by a physical layer circuit.
Beneficial effect of the present invention shows as: according to physical layer circuit of the present invention, can utilize at LAN adapter or socket chipset, the computer equipment that links this adapter or interface chipset is provided, carry out the data sending and receiving by telephone wire.Utilize the physical layer circuit of LAN of the present invention system, can utilize most physical layer circuits, MAC layer mediaaccess control layer circuit with majority, combination in addition, and be attached at devices such as a hub hub, interchanger switch, router router, gate circuit gate way, and link general employed telephone wire, carry out full duplex or the half-duplex network communication of end points to end points.Integral body connects to a LAN system, and it is cheap to enjoy household telephone wires to the full, popularizes and the wide advantage of full range.Because the telephone wire of this physical layer can increase at any time,, can almost unrestrictedly increase the telephone wire that is linked in addition, scalable advantage more is provided as long as increase the number of this physical layer.
Description of drawings
Fig. 1 represents the embodiment system diagram of a kind of LAN of the present invention system.
Fig. 2 shows a kind of calcspar that is useful in LAN grid of the present invention interface chipset.
Fig. 3 shows the physical layer circuit calcspar of LAN grid of the present invention interface chipset.
Fig. 4 is the detailed circuit calcspar of LAN grid of the present invention interface chipset physical layer circuit.
Symbol description among the figure:
500 copper cables or optical fiber
510 LAN grid interface chipsets
501,502,503 phone electric wires have three
511,512,513 physical layer circuits
514、515、516 MAC
520,530,540 home unit
517 exchange lines
531 network cards or socket chipset
532 personal computers
533 video cameras
534 television sets
535 networking telephones
536 network equipments
537 printers
538 computers
539 NAS networks connect storage
401 signal modulators
402 transmitter circuit
403 telephone wires
404 inner echoes produce circuit
405 receiving filters
406 analog-digital converter circuits
407 clock signal generating circuits
408 clock pulse reflex circuits
409 detecting voltage devices
410 power detecting devices
411 feed equalizer forward
412 digital acoustic echo are eliminated circuit
413 DC-shift compensating circuits
414 section determining devices
415 decision feedback equalizer
416 decoder circuits
417 nodes
418 encoder circuits
Embodiment
The embodiment of the invention below is described, only the purpose of this embodiment still must not be in order to limit the scope of the invention only in illustration actual behaviour in service of the present invention.
Fig. 1 represents the embodiment system diagram of a kind of LAN of the present invention system, the situation of the LAN system practical application of display application LAN grid of the present invention interface chipset physical layer circuit.Shown application examples is the situation of a family among the figure.But the industry personage knows that all LAN of the present invention can be used the set at the tissue or the non-tissue of any kenel.
Show among the figure that a copper cable or optical fiber 500 are come in by the external world, are attached to the 1st contact of LAN grid of the present invention interface chipset 510, i.e. first physical layer circuit 511.The other end of this phone cable may be the system that links the system supplier of high-speed broadband network, and this system service supplier's (system service provider) contact also comprises not graphic or other transmission receiving system that is fit to of socket chipset of a LAN of the present invention system.In addition, the local call electric wire that is linked by this socket chipset 510 has three 501,502 and 503, is connected respectively to different home unit 520,530,540 etc.
Fig. 2 promptly shows a kind of calcspar that is useful in LAN grid of the present invention interface chipset.As shown in the figure, this interface chipset 510 includes an exchange line switch fabric517, several physical layer circuits 511,512,513, the MAC514,515,516 identical with physical layer quantity.The telephone wire 501,502,503 that is entered by the external world promptly is attached to each physical layer circuit 511,512,513 etc.The voltage signal that is imported into by telephone wire 501,502,503 changes into electronic signal through physical layer, and after being deciphered, deliver to this MAC514,515,516, deliver to exchange line 517 again, form to MAC to transfer to other physical layer circuit, send with the telephone wire that the latter was linked.In the present invention, this interchanger switch can be a router router or a gate circuit gate way, and its function mainly is that the electronic signal data are carried out correct transmission between different network on-lines.No matter use which kind of technology or device, be scope of the present invention.
See also Fig. 1.The local network that this socket chipset 510 is connected extends to telephone wire after each home unit 520,530,540, the multiply-connected network card of receiving in each family to be equipped with or socket chipset 531 etc.Other contact of this socket chipset 531 all links telephone wire as shown in the figure, and is connected respectively to a personal computer 532, one video cameras 533, one television sets 534, one networking telephones 535, and the network equipment 536 that has another room.One as described above, and the structure of this socket chipset 531 and aforesaid socket chipset 510 are similar, and main difference is that its connectivity port quantity and employed distributor are hub, interchanger, router, gate circuit or the like.In addition, this personal computer 532 is positioned at room the 1st, and then 536 of socket chipsets are positioned at room the 2nd, and links the printer 537 that is positioned at room the 3rd, and the computer 538 and the NAS network that are positioned at room the 2nd connect storage 539.Wherein, the structure of this socket chipset 536 all as hereinbefore, and is and similar with the structure of socket chipset 510,531, do not repeat them here.In addition, link the online of each device and the network equipment and the network equipment and the network equipment, use telephone wire in this example.Certainly, do not use telephone wire and replace with other circuit as all or part of, still applicable in the present invention, but its physical layer circuit need be done suitable change.Main purpose of the present invention is to provide a kind of technology that the existing telephone circuit can be used in the LAN system.
Fig. 3 shows the physical layer circuit calcspar of LAN grid of the present invention interface chipset.As shown in the figure, this physical layer circuit system is arranged on LAN interface chipset, or contains in the adapter of this socket chipset, and the computer equipment that links this interface chipset is provided, carry out the data sending and receiving by telephone wire 403, this physical layer circuit comprises:
An encoder circuit 418 in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit 402 in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter 405 is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter 406 becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator 407 is supplied in this analog-digital converter in order to clocking; And
A decoder circuit 416 is in order to be decoded as electronic signal with the code that this transducer produced.
Fig. 4 is the detailed circuit calcspar of LAN grid of the present invention interface chipset physical layer circuit.Show a kind of example that is useful in LAN grid of the present invention interface chipset physical layer circuit among the figure.The graphic explanation of following foundation.
LAN grid of the present invention interface chipset physical layer circuit mainly comprises:
Be positioned at the signal modulator 401 of transmission end, in order to will being modulated into voltage signal, and correct the mistake that produces because of transmission or modulation, make it be suitable for transmitting by the electronic signal that the MAC circuit is sent into.This modulator 401 can be a Trellis code modulator or other modulator circuit that is suitable for.
One transmitter circuit 402 in order to the voltage signal of reception through ovennodulation, and is delivered to a telephone wire 403, and is passed the signal to long-range by this telephone wire.Be useful in transmitter circuit of the present invention and can be digital analog converter or transmit filter,, do not repeat them here because of all belonging to known technology.
The first inner echo produces circuit 404, subtracts each other in order to the outside echo voltage signal that is produced with this transmitter circuit 402, and its residual value is eliminated by digital echo canceller 412 again.Because on a pair of line, support full duplex,, must be eliminated so the signal of sending also can be got back to the receiving circuit of oneself.The echo cancellation circuit coupling that is suitable for comprises any commercially available product, for example (Gigabit) Ethernet etc.Certainly, other can eliminate the circuit of echo, and is also applicable in the present invention.Transmitting signal is then spread out of by telephone wire 403.
One filter 405 is then arranged aspect receiving terminal, link this telephone wire 403, receiving the outer signals of importing into by telephone wire 403, and carry out filtering, and obtain useful signal component.Generally speaking, filter as used herein is that common low pass filter gets final product.Certainly, other filter also can use in the present invention, as long as can correctly obtain the signal component in the input signal.
An analog-digital converter circuit 406 is in order to convert this received signal to digital voltage signal.This kind change-over circuit 406 can use any known technology and circuit.For example general commercial employed variable gain control analog-digital converter can be useful in the present invention.
One clock signal generating circuit 407 is in order to provide a clock signal to this analog-digital converter circuit, so that the digital signal form of its gained of changing meets the required of electronic signal process.This clock signal generating circuit 407 can be a PLL phase-locked loop, or any circuit that can produce mirror signal when stablizing.Usually, can utilize a clock pulse reflex circuit (timing recover) 408 to come the frequency and the phase place of its clock signal of regulation.
The function of detecting voltage device 409 is to detect the output voltage of analog-digital converter circuit, to guarantee this analog-digital converter circuit operate as normal.Then at the power of detecting received signal, the signal that the other side who connects with detecting sends here judges whether online or broken string the function of power detecting device 410.
Feed equalizer (feed-forward equalizer) 411 forward and transmit intersymbol interfering with each other (inter-symbol-interference) in order to eliminate.Digital acoustic echo is eliminated circuit 412 and is eliminated echo by the signal that known one's own side sent.The function of DC-shift compensating circuit 413 is carried out the DC-shift compensation to received signal, with the direct current signal of compensation received signal loss when transmitting.
Section determining device (slicer) 414 operation result section to received signal is to judge received numerical chracter.This section determining device can use any known circuit mode, and the numerical chracter that for example can set transmission on using is 1,0 ,-1.Be judged as 1 as operation result greater than 0.5, between 0.5 with-0.5 be judged as 0, be judged as-1 less than-0.5.
Decision feedback equalizer (decision feed-back equalizer) 415 will be cut into slices after the signals of the new sampling of determining device 414 are captured, and feed back to node 417, with 411 and 412 results added, and enter section determining device 414.
Circuit with above-mentioned framework, send next signal to through 405 filtering of the 1st filter in phone line end 403, after obtaining its signal component, convert digital signal to, and control the sampling time point by the clock signal that clock signal generating circuit 407 is produced by analog-digital converter 406.This signal is handled through equalizer 411 equilibratings, judges that by section determining device 410 signal of obtaining is sent decoder circuit 416 and deciphered, and obtains its signal content, becomes the treatable signal format of backend computer.This signal is delivered to MAC circuit diagram 2 and is gone the frame processing.Again deliver to this hub, interchanger, router OR circuit, hand over MAC circuit,, deliver to its corresponding physical layer circuit, send out through adding after the frame processing to appointment thereafter.
This signal to be transmitted is an electronic signal, enter this physical layer circuit after, modulate by modulator 401, become voltage signal after, transfer to conveyer circuit 402 and deliver to telephone wire 403, and reach the computer that is linked, communication or ancillary equipment.
Aforesaid circuit can directly utilize existing home phone line, is attached at its two-end-point, carries out correct full duplex or half-duplex exchanges data, and need not use special communication cable.And, utilize this physical layer circuit of array at end points, in conjunction with corresponding MAC circuit, and the hub, interchanger, the router OR circuit that are suitable for, can pass through telephone wire or other mode of connection again, other communication end point of wired or wireless binding.By the LAN that above-mentioned framework is formed, can all use telephone wire to link all end points, also can partly use telephone wire to link all end points, or communicate, and form a cheap facility, LAN extendible and capable of being combined with wireless mode.
Utilize the physical layer circuit of LAN of the present invention system, can utilize most physical layer circuits, MAC layer (media access control layer) circuit with majority, combination in addition, and be attached at devices such as a hub hub, interchanger switch, router router, gate circuit gateway, and link general employed telephone wire, carry out the network service of end points to end points.Integral body connects to a LAN system, and it is cheap to enjoy household telephone wires to the full, popularizes and the wide advantage of full range.Because the telephone wire of this physical layer can increase at any time,, can almost unrestrictedly increase the telephone wire that is linked in addition, scalable advantage more is provided as long as increase the number of this physical layer.
It more than is explanation to LAN system of the present invention and socket chipset physical layer circuit thereof, practise in the personage of this skill and being not difficult by above-mentioned explanation, understand spirit of the present invention and then make different spreading out and stretch and change, only only otherwise exceed spirit of the present invention, all should be contained in its claim.
Claims (11)
1. the physical layer circuit of a LAN grid interface chipset, this physical layer circuit is arranged in the LAN interface chipset, and the computer equipment that links this interface chipset is provided, and carries out the data sending and receiving by a telephone wire; This physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
2. communication system, this communication system comprises at least one telephone wire, and the physical layer circuit that connects the LAN grid interface chipset at these telephone wire two ends, this physical layer circuit is arranged in this area's socket chipset, the computer equipment that links this interface chipset is provided, carries out the data sending and receiving by this telephone wire; This physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code computing that this analog-digital converter produced.
3. area communication network system, this system comprises at least one telephone wire, and the physical layer circuit that connects the LAN grid interface chipset at these telephone wire two ends, this physical layer circuit is arranged in this area's socket chipset, the computer equipment that links this interface chipset is provided, carries out full duplex or the sending and receiving of half-duplex data by this telephone wire; This physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
4. the socket chipset of an area communication network system, this interface chipset comprises at least two physical layer circuits, and the exchanges data circuit that connects these at least two physical layer circuits; Wherein, the data that this exchanges data circuit can be sent into a physical layer circuit are delivered to the physical layer circuit of appointment; And this physical layer circuit can provide the computer equipment that links this interface chipset, carries out the data sending and receiving by a telephone wire; This physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
5. the socket chipset of the area communication network system shown in claim 4, wherein this exchanges data circuit is a hub, interchanger, router OR circuit.
6. a communication system comprises at least one telephone wire, and the socket chipset that connects these telephone wire two ends, and this interface chipset comprises at least one physical layer circuit, and the exchanges data circuit that connects these at least two physical layer circuits; Wherein, the data that this exchanges data circuit can be sent into a physical layer circuit are delivered to the physical layer circuit of appointment; This physical layer circuit can provide the computer equipment that links this interface chipset, carries out the data sending and receiving by this telephone wire; This physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
7. communication system as claimed in claim 6, wherein this exchanges data circuit is a hub, interchanger, router OR circuit.
8. area communication network system, this system comprises at least one telephone wire, and the socket chipset that connects the telephone wire two ends, this socket chipset comprises at least two physical layer circuits, and the exchanges data circuit that connects these at least two physical layer circuits; Wherein, the data that this exchanges data circuit can be sent into a physical layer circuit are delivered to the physical layer circuit of appointment; This physical layer circuit provides the computer equipment that links this interface chipset, carries out the data sending and receiving by this telephone wire; This physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
9. area communication network as claimed in claim 8 system, wherein this exchanges data circuit is a hub, interchanger, router OR circuit.
10. area communication network system, this system comprises at least one telephone wire, connects the first socket chipset of this telephone wire one end, and the physical layer circuit that connects the second socket chipset of its other end; Wherein, this second socket chipset comprises at least two these physical layer circuits, and the exchanges data circuit that connects these at least two physical layer circuits; The data that this exchanges data circuit can be sent into a physical layer circuit are delivered to the physical layer circuit of appointment; This physical layer circuit can provide the computer equipment that links this interface chipset, carries out the data sending and receiving by this telephone wire; And this physical layer circuit comprises:
An encoder circuit in order to the signal that tendency to develop is defeated, is weaved into the code of appropriate format, for the usefulness of transmission;
A transmitter circuit in order to the signal that this encoder is coded, is fed to a telephone wire with the form of electricity;
A receiving filter is linked to this telephone wire, in order to the signal of reception input, and filtering noise;
An analog-digital converter becomes digital form will import analog signal conversion, to form code, for the usefulness of decoding;
A clock signal generator is supplied in this analog-digital converter in order to clocking; And
A decoder circuit is in order to be decoded as electronic signal with the code that this analog-digital converter produced.
11. area communication network as claimed in claim 10 system, wherein this exchanges data circuit is a hub, interchanger, router OR circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100847215A CN101257521A (en) | 2007-02-26 | 2007-02-26 | Communicating system, area network system, physical layer circuit of network interface chip group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100847215A CN101257521A (en) | 2007-02-26 | 2007-02-26 | Communicating system, area network system, physical layer circuit of network interface chip group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101257521A true CN101257521A (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100847215A Pending CN101257521A (en) | 2007-02-26 | 2007-02-26 | Communicating system, area network system, physical layer circuit of network interface chip group |
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| Country | Link |
|---|---|
| CN (1) | CN101257521A (en) |
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2007
- 2007-02-26 CN CNA2007100847215A patent/CN101257521A/en active Pending
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