1. An eye diagram measuring circuit, comprising:
a reference signal generator for receiving and sampling an input signal and generating a reference signal;
a clock data recovery circuit for generating a clock signal according to the reference signal;
a test signal generator receiving the clock signal and the input signal, and generating a first sampling signal according to the clock signal, wherein the test signal generator discriminates logic levels of plural bits of the input signal according to the first sampling signal and a first slicing voltage, thereby generating a corresponding test signal; and
a boundary determining unit receiving the test signal and the reference signal, and generating a boundary of an eye diagram according to a relationship between the test signal and the reference signal,
wherein the boundary determining unit provides plural conditions to the test signal generator, and the test signal generator changes a phase of the first sampling signal and a magnitude of the first slicing voltage according to the plural conditions.
2. The eye diagram measuring circuit as claimed in claim 1, wherein the boundary determining unit comprises:
an adjusting unit for inputting the plural conditions to the test signal generator according to a control signal;
a judging unit for comparing the test signal with the reference signal, thereby generating a result signal; and
a controlling unit for generating the control signal to control the adjusting unit to generate the plural conditions, and generating the boundary of the eye diagram according to the result signal and the plural conditions.
3. The eye diagram measuring circuit as claimed in claim 2, wherein the judging unit is an exclusive OR circuit, wherein if the test signal and the reference signal are identical, the result signal has a low logic level, wherein if the test signal and the reference signal are not identical, the result signal has a high logic level.
4. The eye diagram measuring circuit as claimed in claim 1, wherein each of the plural conditions comprises a sampling phase offset and a slicing voltage offset, wherein the eye diagram measuring circuit performs an edge searching process, and the edge searching process comprises steps of:
(a) the boundary determining unit providing an initial of the slicing voltage offset to the test signal generator;
(b) the test signal generator generating the first slicing voltage according to the slicing voltage offset, and discriminating the logic levels of the plural bits of the input signal according to the first sampling signal and the first slicing voltage, thereby generating the test signal;
(c) judging whether the test signal and the reference signal are identical, wherein if the test signal and the reference signal are identical, a summation of the slicing voltage offset and an increment step is used to update the slicing voltage offset, wherein if the test signal and the reference signal are not identical, a difference between the slicing voltage offset and the increment step is used to update the slicing voltage offset; and
(d) judging whether a magnitude of the increment step is larger than a threshold, wherein if the magnitude of the increment step is larger than the threshold, the magnitude of the increment step is reduced and then the step (b) is repeatedly done, wherein if the magnitude of the increment step is smaller than or equal to the threshold, the updated slicing voltage offset is a first edge of an eye diagram.
5. The eye diagram measuring circuit as claimed in claim 1, wherein each of the plural conditions comprises a sampling phase offset and a slicing voltage offset, and the test signal generator comprises:
a slicing signal generator receiving the slicing voltage offset, and generating the first slicing voltage;
a sampling signal generator receiving the sampling phase offset and the clock signal, and delaying the clock signal according to the sampling phase offset, thereby generating the first sampling signal;
a first sampler for discriminating the logic levels of the plural bits of the input signal according to the first sampling signal and the first slicing voltage; and
a first deserializer connected with the first sampler for converting the plural bits in a serial form into the test signal in a parallel form.
6. The eye diagram measuring circuit as claimed in claim 5, wherein the reference signal generator comprises:
a delaying circuit for receiving the clock signal and delaying the clock signal by a fixed phase, thereby generating a second sampling signal;
a second sampler for discriminating the logic levels of the plural bits of the input signal according to a fixed second slicing voltage and the second sampling signal; and
a second deserializer connected with the second sampler for converting the plural bits in the serial form into the reference signal in a parallel form.
7. An eye diagram measuring method for an eye diagram measuring circuit, the eye diagram measuring circuit comprising a reference signal generator for converting an input signal into a reference signal, the eye diagram measuring method comprising steps of providing plural sampling phase offsets to a test signal generator, and changing a phase of a sampling signal according to the plural sampling phase offsets, wherein when each of the plural sampling phase offsets is provided to the test signal generator, an edge searching process is performed, and the edge searching process comprises steps of:
(a) providing an initial of a slicing voltage offset to the test signal generator;
(b) generating a first slicing voltage according to the slicing voltage offset, and discriminating logic levels of plural bits of the input signal according to the sampling signal and the first slicing voltage, thereby generating a corresponding test signal;
(c) judging whether the test signal and the reference signal are identical, wherein if the test signal and the reference signal are identical, a summation of the slicing voltage offset and an increment step is used to update the slicing voltage offset, wherein if the test signal and the reference signal are not identical, a difference between the slicing voltage offset and the increment step is used to update the slicing voltage offset; and
(d) judging whether a magnitude of the increment step is larger than a first threshold, wherein if the magnitude of the increment step is larger than the first threshold, the magnitude of the increment step is reduced and then the step (b) is repeatedly done, wherein if the magnitude of the increment step is smaller than or equal to the first threshold, the updated slicing voltage offset is a first edge of an eye diagram.
8. The eye diagram measuring method as claimed in claim 7, wherein when each of the plural sampling phase offsets is provided to the test signal generator, the eye diagram measuring method further comprises steps of:
(e) providing another initial of the slicing voltage offset to the test signal generator;
(f) generating the first slicing voltage according to the slicing voltage offset, and discriminating the logic levels of the plural bits of the input signal according to the sampling signal and the slicing voltage, thereby generating the corresponding test signal;
(g) judging whether the test signal and the reference signal are identical, wherein if the test signal and the reference signal are identical, a difference between the slicing voltage offset and another increment step is used to update the slicing voltage offset, wherein if the test signal and the reference signal are not identical, a summation of the slicing voltage offset and the another increment step is used to update the slicing voltage offset; and
(h) judging whether the magnitude of the another increment step is larger than a second threshold, wherein if the magnitude of the another increment step is larger than the second threshold, the magnitude of the another increment step is reduced and then the step (f) is repeatedly done, wherein if the magnitude of the another increment step is smaller than or equal to the second threshold, the updated slicing voltage offset is a second edge of the eye diagram.
9. The eye diagram measuring method as claimed in claim 8, wherein if the first edge and the second edge are identical, the first edge and the second edge are a left edge or a right edge of the eye diagram.
10. The eye diagram measuring method as claimed in claim 8, wherein the first edges and the second edges corresponding to the plural sampling phase offsets are collaboratively defined as a boundary of the eye diagram.
11. The eye diagram measuring method as claimed in claim 8, wherein the first initial of the slicing voltage offset in the step (a) and the second initial of the slicing voltage offset in the step (e) are determined according to the first edge and the second edge obtained by a previous edge searching process.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for RECLAMATION of wastewater comprising: effecting liquid-solid separation of the gravity settleable solids portions of the wastewater to give an anaerobic effluent, distributing the anaerobic effluent with the settleable solids removed into and beneath the upper surface of a first media section bed comprising particles of media conducive to the growth and maintenance of aerobic bacteria organisms at a rate sufficient to allow the media to retain the effluent therein for a first retention time in the first media section before displacement by additional effluent and gravity, collecting the displaced aerobically treated effluent from the media at a collection point or points in the first media section, collecting this displaced aerobically treated effluent in a tank (vessel), distributing the collected and displaced aerobically treated effluent evenly over the same bed of the first media section for retention within the first media section a second or more retention time sufficient for the aerobic bacteria in the first media section to substantially reduce the bacterial count of the wastewater before displacement by additional effluent or aerobically treated effluent and gravity, the collected and displaced aerobically treated effluent from the first media section containing dissolved oxygen and carrying free oxygen with it is collected and returned into a tank, the collected aerobically treated effluent that arrives into the second media section is retained a sufficient time for the aerobic bacteria in the second media section to substantially reduce the bacterial counts before displacement by additional aerobically treated effluent, collecting and discharging the aerobically treated effluent displaced a first time from the second media section.
2. The method of reclamation of claim 1 wherein substantially all of the aerobically treated effluent first displaced from the first media section is collected and distributed evenly over the top surface of the first and second sections of the media by timed-control spraying for retention and displacement therefrom a second or more times and wherein the aerobically treated effluent displaced in the second section is collected for discharge at a different point than the point of collection of the effluent first displaced from the first media section.
3. The method of claim 2, wherein the first and second media sections is coarse sand having a uniformity coefficient of variable percentages and an example of grain size distribution as follows and as determined by coefficient percentage:
Sieve Size
mm
Percentages
Passing a \u215c\u2033 sieve
9.51
100
Passing a No. 4 sieve
4.76
30-60
Passing a No. 8 sieve
2.38
10-30
Passing a No. 16 sieve
1.19
2-8
Passing a No. 50 sieve
0.297
\u20030
4. The method of reclamation of claim 1, including controlling the amount of anaerobic and aerobically treated effluent distributed to the media to allow retention of the effluent within the media a time sufficient for bacterial action and biodegradation of the suspended solids, BOD, fecal coliform and nitrates in the effluent to take place.
5. The reclamation system of claim 1, including controller timed control means operatively connected to the subsurface distribution systems flow to the first media section.
6. An onoff-site WATER RECLAMATION SYSTEM providing an aerobically and oxygenated treated effluent containing minimal suspended solids, low BOD, low bacterial count, lowered nitrate count and high dissolved oxygen count, comprising:
A collectionseptic tank having an inlet receiving untreated wastewater containing solids therein and an outlet connected to a subsurface effluent distribution means, the septic tank effecting solid-liquid separation and delivering an anaerobic untreated effluent to the subsurface distribution means, a basin containing particles of a media conducive to the growth and maintenance of aerobic bacteria organisms for the biological treatment of wastewater, subsurface effluent distribution means positioned within the particles of the first media section in the basin which receive the untreated anaerobic effluent from the dosing tank after the collectionseptic and NRU tank and distribute it through the first media section for retention thereby for facultative and aerobic bacterial action and biodegradation of the suspended solids until displaced by additional effluent, aerobically treated effluent and gravity, the subsurface distribution means including a first subsurface distribution system for distribution of the untreated effluent within a first media section, first outlet means in the bottom wall of the basin beneath the subsurface distribution means for collecting aerobically treated effluent displaced from the first media section, a recirculation tank receiving the displaced aerobically treated effluent discharged from the first outlet means in the basin, means for timed-controlled pumping of the displaced aerobically treated effluent from the recirculation tank and injecting it into the air above the basin for even distribution across the surface of the first and second media sections in the basin for retention by the media a second or more times in the first media section and one time retained by the media in the second media section, the recirculated aerobically treated effluent displacing retained aerobically treated effluent held within the first and second media sections, second outlet means in the second media section basin receiving a portion of the aerobically treated effluent retained and displaced from the media, and means connecting with the second outlet from the second media section basin receiving the aerobically treated effluent for discharge.
7. The reclamation system of claim 6, including timed controller means operatively connected to the first subsurface distribution systems and the recirculation second distribution system.
8. The reclamation system of claim 7, including the timed controller means hardware and software connected to the first subsurface distribution system, the recirculation second distribution system, float switches, providing for monitoring of the float switches, pumps and controlling and monitoring the systems operation.
9. The reclamation system of claim 1 and claim 6, including an allowance of a plurality of different custom design aeration systems to allow contracted nitrogenammonia rate variances prior to discharge, according to a plurality of needs in the final required discharge results, this allowance of formulation is not a forecastable design specific claim as it is encompassed as an allowance accepted within the preferred embodiment of the present invention and to include within the reclamation system of claim 1 and 6.