CN104281552A - Signal retransmission device and signal retransmission method - Google Patents
Signal retransmission device and signal retransmission method Download PDFInfo
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- CN104281552A CN104281552A CN201310289875.3A CN201310289875A CN104281552A CN 104281552 A CN104281552 A CN 104281552A CN 201310289875 A CN201310289875 A CN 201310289875A CN 104281552 A CN104281552 A CN 104281552A
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- signal
- storer
- switch
- signal conditioner
- many switch
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
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- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to a signal retransmission device, which comprises a signal regulation device, a one-to-many switch, multiple storages and a controller, wherein the signal regulation device receives a signal from a transmission device, retimes and regenerates the received signal, and transmits the regenerated signal to a receiving device; a set value matched with a signal transmission protocol is stored in each storage; the signal regulation device, the multiple storages and the controller are respectively connected with the one-to-many switch; the controller controls the one-to-many switch to selectively communicate the signal regulation device with one storage in the multiple storages; the signal regulation device reads the set value from the storage communicated with the signal regulation device and applies the set value. The invention also discloses a signal retransmission method.
Description
Technical field
The present invention relates to electronic communication field, particularly relate to a kind of signal repeater and signal retransmission method.
Background technology
In the transmitting procedure of high speed signal, due to the impact of line noise and the restriction of up chip drives ability, the digital signal of beared information or simulating signal can only transmit limited distance, and the long meeting of transmission range causes the deep fades of signal intensity and the serious distortion of signal quality.In order to address this problem, existing design adopts one or more signal repeater transmission line to be divided into two sections or multistage circuit, signal repeater carries out retiming and regenerating to the received signal, then by regeneration Signal transmissions to receiving trap or next section of circuit, like this, signal repeater achieves the effective transmission to signal in long distance line, and ensure that intensity and the quality of signal.
For ensureing that signal repeater is retimed to signal accurately and regenerates, the setting value of signal repeater must be adjusted to the parameter matched with signal transfer protocol, if the setting value of signal repeater is not mated with signal transfer protocol, the variation that the frequency of signal or amplitude make a mistake will be made, thus cause the serious distortion of signal quality.Such as, using SAS(Serial Attached SCSI) in the system of agreement, the setting value of signal repeater must be adjusted to the parameter matched with SAS agreement, and use PCIe(Peripheral Component Interface Express) in the system of agreement, the setting value of signal repeater must be adjusted to the parameter matched with PCIe agreement, and any setting value degree do not matched with signal transfer protocol all will make signal repeater to retime to signal accurately and to regenerate.
But in prior art designs, in the system that have employed multiple signal transfer protocol, have to customize separately for each signal transfer protocol the signal repeater matched with it, this is unfavorable for the designing and employing of communication system very much.
Summary of the invention
In view of above content, be necessary to provide a kind of signal repeater and signal retransmission method, be convenient to adjustment setting value to adapt to multi-signal host-host protocol.
A kind of signal repeater, comprise a signal conditioner, described signal conditioner is from a dispensing device Received signal strength, and carry out to the received signal retiming and regenerating, the signal of regeneration is sent to a receiving trap, described signal repeater also comprises a pair Multi-Switch, multiple storer and a controller, the setting value matched with a signal transfer protocol is stored in each storer, described signal conditioner, described multiple storer, described controller is connected with described one-to-many switch respectively, described controller controls described one-to-many switch and is optionally communicated with the storer in described multiple storer by described signal conditioner, described signal conditioner reads setting value and applies described setting value from the storer be communicated with it.
Preferably, described signal conditioner and described one-to-many switch pass through I
2c bus is connected, and described multiple storer and described one-to-many switch pass through I
2c bus is connected.
Preferably, described one-to-many switch is one-to-many I
2c bus switch.
Preferably, described controller is connected with multiple control pins of described one-to-many switch, the level of described multiple control pins of described one-to-many switch is drawn high or dragged down to described controller, and described signal conditioner is optionally communicated with the storer in described multiple storer according to the level height of described multiple control pin by described one-to-many switch.
Preferably, described signal conditioner is heavy driver or retimer.
A kind of signal retransmission method, described method comprises:
One controller controls a pair Multi-Switch and is optionally communicated with the storer of in multiple storer by a signal conditioner;
Described signal conditioner reads the setting value matched with a signal transfer protocol from the storer be communicated with it;
Described signal conditioner is from a dispensing device Received signal strength;
Described signal conditioner carries out retiming and regenerating according to the described setting value read to the received signal; And
The signal of regeneration is sent to a receiving trap by described signal conditioner.
Preferably, described signal conditioner and described one-to-many switch pass through I
2c bus is connected, and described multiple storer and described one-to-many switch pass through I
2c bus is connected.
Preferably, described one-to-many switch is one-to-many I
2c bus switch.
Preferably, described method also comprises: the level of multiple control pins of described one-to-many switch is drawn high or dragged down to described controller, and described signal conditioner is optionally communicated with the storer in described multiple storer according to the level height of described multiple control pin by described one-to-many switch.
Preferably, described signal conditioner is heavy driver or retimer.
Compared with prior art, above-mentioned signal repeater and signal retransmission method, described signal conditioner can read different setting values to adapt to different signal transfer protocols in described multiple storer, thus make described signal conditioner can in signal repeating process conditioning signal better.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the signal repeater in one embodiment of the present invention.
Fig. 2 is the annexation figure of controller in one embodiment of the present invention and one-to-many switch.
Fig. 3 is the process flow diagram of the signal retransmission method in another embodiment of the present invention.
Main element symbol description
| Signal conditioner | 10 |
| One-to-many switch | 20 |
| Storer | 30 |
| Controller | 40 |
| Dispensing device | 50 |
| Receiving trap | 60 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, schematically illustrate the signal repeater according to one embodiment of the present invention in figure, described signal repeater comprises a signal conditioner 10,1 a pair Multi-Switch 20, multiple storer 30 and a controller 40.Described signal conditioner 10 passes through I
2c(Inter-Integrated Circuit) bus is connected with described one-to-many switch 20, and each storer 30 passes through I
2c bus is connected with described one-to-many switch 20.I
2c bus comprises serial data line (SDA) and serial time clock line (SCL) two string lines, I
2c bus, because its interface line is few, control mode simple, device package form is little, traffic rate comparatively advantages of higher, is widely used in the monitoring field of server.Described controller 40 is connected with described one-to-many switch 20.
Described one-to-many switch 20 is one-to-many I
2c bus switch, can be communicated with described signal conditioner 10 with a storer in described multiple storer 30.Described one-to-many switch 20 can comprise one or more multiplexer (Multiplexer) or de-multiplexer (De-Multiplexer), utilizes its storer 30 selecting pin (Select Pin) to switch different passage to be communicated with described signal conditioner 10.
In one embodiment, described controller 40 is baseboard management controller (Baseboard Management Controller), energy independent operating, restarts at safety long-distance, safety re-powers, Local Area Network is warned and provide management interface in system health supervision.
Refer to Fig. 2, in figure, schematically illustrate the annexation of described controller 40 and described one-to-many switch 20.Two output pin D1 with D2 of described controller 40 control pin A1 with A2 with two of described one-to-many switch 20 respectively and are connected, when described controller 40 exports the signal of varying level by described output pin D1 and D2 to described control pin A1 and A2 of described one-to-many switch 20, the level of described control pin A1 and A2 of described one-to-many switch 20 can be drawn high or dragged down.The various combination of the level height of described control pin A1 and A2, can control described one-to-many switch 20 respectively and be communicated with from different storeies 30 by described signal conditioner 10.Such as, when described control pin A1 is low level, when A2 is low level, described signal conditioner 10 is communicated with a storer 30 by described one-to-many switch 20, when described control pin A1 is low level, when A2 is high level, described signal conditioner 10 is communicated with No. two storeies 30 by described one-to-many switch 20.Two control pin A1 and A2 and can have four kinds of different level height combinations, thus can control described one-to-many switch 20 and optionally be communicated with in four storeies 30.Therefore, can want according to the number needs of storer 30, use the control pin of varying number, such as, when needs eight storeies 30, three can be used to control pin, when needs 16 storeies 30, four can be used to control pin.
All store in each storer in described multiple storer 30 with a signal transfer protocol (such as, PCIe agreement, SAS agreement or usb protocol etc.) setting value that matches, described setting value can comprise postemphasis (De-emphasis), switching rate (Slew rate), amplitude (Amplitude) etc. and adjust relevant parameter with signal.In one embodiment, described multiple storer 30 is electricallyerasable ROM (EEROM) (EEPROM, Electrically Erasable Programmable Read-Only Memory), like this, the setting value stored in described storer 30 more firmly and is not easily destroyed.
Read setting value in the storer that described signal conditioner 10 is communicated with it from described multiple storer 30 and apply described setting value.After described signal conditioner 10 receives signal from a dispensing device 50, carry out to the received signal retiming and regenerating according to the described setting value read, then the signal of regeneration is sent to a receiving trap 60.Described signal conditioner 10 can be heavy driver (Re-driver) or retimer (Re-timer).Described dispensing device 50 and described receiving trap 60 can be all the control chips mating a certain agreement, such as SAS controller, also can be another signal repeaters.
Refer to Fig. 3, schematically illustrate the process flow diagram of the signal retransmission method according to one embodiment of the present invention in figure, said method comprising the steps of:
Step S201, the level of multiple control pins of described one-to-many switch 20 is drawn high or dragged down to described controller 40.
Step S202, described signal conditioner 10 is optionally communicated with the storer in described multiple storer 30 according to the level height of described multiple control pin by described one-to-many switch 20
Step S203, described signal conditioner 10 reads the setting value matched with a signal transfer protocol from the storer be communicated with it;
Step S204, described signal conditioner 10 is from described dispensing device 50 Received signal strength.
Step S205, described signal conditioner 10 carries out retiming and regenerating according to the described setting value read to the received signal.
Step S206, the signal of regeneration is sent to described receiving trap 60 by described signal conditioner 10.
Relative to prior art, above-mentioned signal repeater and signal retransmission method, described signal conditioner 10 can read different setting values to adapt to different signal transfer protocols in described multiple storer 30, thus make described signal conditioner 10 can in signal repeating process conditioning signal better.
To one skilled in the art, the actual needs can produced according to scheme of the invention of the present invention and inventive concept combination is made other and is changed accordingly or adjustment, and these changes and adjustment all should belong to the protection domain of the claims in the present invention.
Claims (10)
1. a signal repeater, comprise a signal conditioner, described signal conditioner is from a dispensing device Received signal strength, and carry out to the received signal retiming and regenerating, the signal of regeneration is sent to a receiving trap, it is characterized in that: described signal repeater also comprises a pair Multi-Switch, multiple storer and a controller, the setting value matched with a signal transfer protocol is stored in each storer, described signal conditioner, described multiple storer, described controller is connected with described one-to-many switch respectively, described controller controls described one-to-many switch and is optionally communicated with the storer in described multiple storer by described signal conditioner, described signal conditioner reads setting value and applies described setting value from the storer be communicated with it.
2. signal repeater as claimed in claim 1, is characterized in that: described signal conditioner and described one-to-many switch pass through I
2c bus is connected, and described multiple storer and described one-to-many switch pass through I
2c bus is connected.
3. signal repeater as claimed in claim 2, is characterized in that: described one-to-many switch is one-to-many I
2c bus switch.
4. signal repeater as claimed in claim 1, it is characterized in that: described controller is connected with multiple control pins of described one-to-many switch, the level of described multiple control pins of described one-to-many switch is drawn high or dragged down to described controller, and described signal conditioner is optionally communicated with the storer in described multiple storer according to the level height of described multiple control pin by described one-to-many switch.
5. signal repeater as claimed in claim 1, is characterized in that: described signal conditioner is heavy driver or retimer.
6. a signal retransmission method, is characterized in that: described method comprises:
One controller controls a pair Multi-Switch and is optionally communicated with the storer of in multiple storer by a signal conditioner;
Described signal conditioner reads the setting value matched with a signal transfer protocol from the storer be communicated with it;
Described signal conditioner is from a dispensing device Received signal strength;
Described signal conditioner carries out retiming and regenerating according to the described setting value read to the received signal; And
The signal of regeneration is sent to a receiving trap by described signal conditioner.
7. signal retransmission method as claimed in claim 6, is characterized in that: described signal conditioner and described one-to-many switch pass through I
2c bus is connected, and described multiple storer and described one-to-many switch pass through I
2c bus is connected.
8. signal retransmission method as claimed in claim 7, is characterized in that: described one-to-many switch is one-to-many I
2c bus switch.
9. signal retransmission method as claimed in claim 6, it is characterized in that: described method also comprises: the level of multiple control pins of described one-to-many switch is drawn high or dragged down to described controller, described signal conditioner is optionally communicated with the storer in described multiple storer according to the level height of described multiple control pin by described one-to-many switch.
10. signal retransmission method as claimed in claim 6, is characterized in that: described signal conditioner is heavy driver or retimer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289875.3A CN104281552A (en) | 2013-07-11 | 2013-07-11 | Signal retransmission device and signal retransmission method |
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|---|---|---|---|
| CN201310289875.3A CN104281552A (en) | 2013-07-11 | 2013-07-11 | Signal retransmission device and signal retransmission method |
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| Publication Number | Publication Date |
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| CN104281552A true CN104281552A (en) | 2015-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106250332A (en) * | 2015-06-04 | 2016-12-21 | 辛纳普蒂克斯公司 | Signal conditioner for high-speed data communication |
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2013
- 2013-07-11 CN CN201310289875.3A patent/CN104281552A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106250332A (en) * | 2015-06-04 | 2016-12-21 | 辛纳普蒂克斯公司 | Signal conditioner for high-speed data communication |
| CN106250332B (en) * | 2015-06-04 | 2021-05-11 | 辛纳普蒂克斯公司 | Signal conditioner for high speed data communication |
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Application publication date: 20150114 |