Abbott et al., 1990 - Google Patents
A high-speed adaptive equalizer for magnetic disk drivesAbbott et al., 1990
- Document ID
- 460410683614535037
- Author
- Abbott W
- Bednarz P
- Fisher K
- Cioffi J
- Publication year
- Publication venue
- International Conference on Acoustics, Speech, and Signal Processing
External Links
Snippet
The design of a high-speed adaptive decision feedback equalizer (DFE) is described for detection of magnetic disk data. A RAM is used in the feedback path instead of the usual transversal filter, and the equalizer is referred to as the RAM-DFE. The RAM compensates …
- 230000003044 adaptive 0 title abstract description 15
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 ; Receiver end arrangements for processing baseband signals
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03439—Fixed structures
- H04L2025/03445—Time domain
- H04L2025/03471—Tapped delay lines
- H04L2025/03484—Tapped delay lines time-recursive
- H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
-
- 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 ; Receiver end arrangements for processing baseband signals
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
-
- 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 ; Receiver end arrangements for processing baseband signals
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03592—Adaptation methods
- H04L2025/03598—Algorithms
- H04L2025/03611—Iterative algorithms
- H04L2025/03617—Time recursive algorithms
-
- 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 ; Receiver end arrangements for processing baseband signals
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
-
- 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 ; Receiver end arrangements for processing baseband signals
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03248—Arrangements for operating in conjunction with other apparatus
- H04L25/03254—Operation with other circuitry for removing intersymbol interference
- H04L25/03261—Operation with other circuitry for removing intersymbol interference with impulse-response shortening filters
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
- H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
- H04L7/0029—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of received data signal
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5132988A (en) | Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media | |
US5430661A (en) | Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media | |
US7193802B2 (en) | Apparatus for providing dynamic equalizer optimization | |
US6594098B1 (en) | Acquistion timing loop for read channel | |
KR100589090B1 (en) | Server hard disk drive system | |
US5060088A (en) | Adaptive equalization for recording systems using partial-response signaling | |
US7421017B2 (en) | Digital filter adaptively learning filter coefficient | |
Fisher et al. | An adaptive RAM-DFE for storage channels | |
US6804695B1 (en) | Method and apparatus for constraining tap coefficients in an adaptive finite impulse response filter | |
EP1528560A1 (en) | Adaptive equalizer decoding device and error detecting device | |
EP1442569A1 (en) | Zf-based adaptive asynchronous receiver | |
JP3428329B2 (en) | Waveform equalization circuit | |
JP3428376B2 (en) | Automatic equalization system | |
Abbott et al. | A high-speed adaptive equalizer for magnetic disk drives | |
US7471746B2 (en) | Whitening of data-dependent, non-stationary noise in an inter-symbol interference channel detector | |
Roh et al. | Single-head/single-track detection in interfering tracks | |
Abbott et al. | Timing recovery for adaptive decision feedback equalization of the magnetic storage channel | |
US6222879B1 (en) | Self contained equalization method and apparatus | |
Yamasaki et al. | A 1, 7 code EEPR4 read channel IC with an analog noise whitened detector | |
Bednarz et al. | Complexity issues in RAM-DFE design for magnetic disk drives | |
Lin et al. | Adaptive nonlinear decision feedback equalization with channel estimation and timing recovery in digital magnetic recording systems | |
KR100335616B1 (en) | Signal detecting method and device of data storing system | |
Brown et al. | Adaptive continuous-time forward equalization for DFE-based disk-drive read channels | |
JPH05101306A (en) | Magnetic reproducing device | |
Abbott | Adaptive equalization and coding for magnetic recording channels |