KR960009808B1 - Coefficient updating circuit for adaptive channel equalizer - Google Patents
Coefficient updating circuit for adaptive channel equalizer Download PDFInfo
- Publication number
- KR960009808B1 KR960009808B1 KR93019074A KR930019074A KR960009808B1 KR 960009808 B1 KR960009808 B1 KR 960009808B1 KR 93019074 A KR93019074 A KR 93019074A KR 930019074 A KR930019074 A KR 930019074A KR 960009808 B1 KR960009808 B1 KR 960009808B1
- Authority
- KR
- South Korea
- Prior art keywords
- coefficient
- latch
- reception signal
- signal storage
- channel
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
- G06F5/06—Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H2017/0072—Theoretical filter design
- H03H2017/0081—Theoretical filter design of FIR filters
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Filters That Use Time-Delay Elements (AREA)
Abstract
The circuit includes a reception signal storage(1), a latch(2) for sampling an error signal, a controller(3) for controlling the reception signal storage(1) and latch(2), a updating value calculating unit(4) for operating the outputs of the reception signal storage(1) and latch(2) to generate an updating coefficient, an adder(6) for adding the output of the updating value calculating unit(4) and previous filter coefficient to generate a new filter coefficient, a channel index generator(5) for decoding a channel signal, a dual port RAM(7) for storing N coefficients when the adder(6) outputs a previous channel coefficient, and an address generator(8) for generating addresses to the dual port RAM(7) and a limited impulse response filter(10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR93019074A KR960009808B1 (en) | 1993-09-20 | 1993-09-20 | Coefficient updating circuit for adaptive channel equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR93019074A KR960009808B1 (en) | 1993-09-20 | 1993-09-20 | Coefficient updating circuit for adaptive channel equalizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950010510A KR950010510A (en) | 1995-04-28 |
| KR960009808B1 true KR960009808B1 (en) | 1996-07-24 |
Family
ID=19364053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR93019074A KR960009808B1 (en) | 1993-09-20 | 1993-09-20 | Coefficient updating circuit for adaptive channel equalizer |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960009808B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008056871A1 (en) * | 2006-11-06 | 2008-05-15 | Samsung Electronics Co., Ltd. | Adaptive equalizer and adaptive equalization method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100585638B1 (en) * | 1998-12-31 | 2006-09-06 | 엘지전자 주식회사 | Modulator of High Speed Communication System |
| KR100617778B1 (en) * | 1999-07-07 | 2006-08-28 | 삼성전자주식회사 | Appasratus and method for compensating degradation of a received signal |
-
1993
- 1993-09-20 KR KR93019074A patent/KR960009808B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008056871A1 (en) * | 2006-11-06 | 2008-05-15 | Samsung Electronics Co., Ltd. | Adaptive equalizer and adaptive equalization method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR950010510A (en) | 1995-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| G160 | Decision to publish patent application | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20060616 Year of fee payment: 11 |
|
| LAPS | Lapse due to unpaid annual fee |