TW329588B - Equalizer and equalization method using reference signal - Google Patents
Equalizer and equalization method using reference signalInfo
- Publication number
- TW329588B TW329588B TW085115301A TW85115301A TW329588B TW 329588 B TW329588 B TW 329588B TW 085115301 A TW085115301 A TW 085115301A TW 85115301 A TW85115301 A TW 85115301A TW 329588 B TW329588 B TW 329588B
- Authority
- TW
- Taiwan
- Prior art keywords
- reference signal
- ser
- filtering coefficient
- equalization method
- calculate
- Prior art date
Links
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
An equalization method, which equalizes a received signal by renewing a filtering coefficient of a filter in an off-line system using a pre-stored reference signal, comprising the following steps: (a) Determine if the signal input to a high definition TV (HDTV) includes a field sync; (b) If a field sync is detected in step (a), then a training sequence is stored in a memory; (c) Calculate the filtering coefficient according to a pre-determined algorithm; (d) Determine the level of the training sequence existing in step (b) and calculate a symbol error rate (SER) using the pre-stored reference signal; (e) The filtering coefficient obtained in step (c) is transmitted to the filter when the SER obtained in step (d) is lower than a predetermined value; and (f) Repeat steps (c) through (f) until a loop variable equals a loop constant, which indicates the number of off-line operations capable of being performed in a field, while increasing the loop variable when the SER obtained in step (d) is greater than or equal to a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW085115301A TW329588B (en) | 1996-12-11 | 1996-12-11 | Equalizer and equalization method using reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW085115301A TW329588B (en) | 1996-12-11 | 1996-12-11 | Equalizer and equalization method using reference signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW329588B true TW329588B (en) | 1998-04-11 |
Family
ID=58262550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW085115301A TW329588B (en) | 1996-12-11 | 1996-12-11 | Equalizer and equalization method using reference signal |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TW329588B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI448156B (en) * | 2011-02-25 | 2014-08-01 | Mstar Semiconductor Inc | Calibration device and method for calibrating video/audio signals |
-
1996
- 1996-12-11 TW TW085115301A patent/TW329588B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI448156B (en) * | 2011-02-25 | 2014-08-01 | Mstar Semiconductor Inc | Calibration device and method for calibrating video/audio signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |