Inventor
BEHRENS RICHARD T
US73 patents
⚠️ This page may combine multiple inventors who share the name “BEHRENS RICHARD T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIRRUS LOGIC INC
37 patentsUS6009549ADec 28, 1999
Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization
CIRRUS LOGIC INC249 citations99
US5802118ASep 1, 1998
Sub-sampled discrete time read channel for computer storage systems
CIRRUS LOGIC INC188 citations99
US5291499AMar 1, 1994
Method and apparatus for reduced-complexity viterbi-type sequence detectors
CIRRUS LOGIC INC150 citations99
US6646822B1Nov 11, 2003
Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors
CIRRUS LOGIC INC99 citations98
US5892632AApr 6, 1999
Sampled amplitude read channel employing a residue number system FIR filter in an adaptive equalizer and in interpolated timing recovery
CIRRUS LOGIC INC117 citations98
US5796535AAug 18, 1998
Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer
CIRRUS LOGIC INC137 citations98
US5761212AJun 2, 1998
Channel quality
CIRRUS LOGIC INC99 citations98
US5754353AMay 19, 1998
Channel quality circuit in a sampled amplitude read channel
CIRRUS LOGIC INC99 citations98
US5696639ADec 9, 1997
Sampled amplitude read channel employing interpolated timing recovery
CIRRUS LOGIC INC122 citations98
US6208481B1Mar 27, 2001
Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording
CIRRUS LOGIC INC101 citations97
US5999355ADec 7, 1999
Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording
CIRRUS LOGIC INC101 citations97
US6819514B1Nov 16, 2004
Adaptive equalization and interpolated timing recovery in a sampled amplitude read channel for magnetic recording
CIRRUS LOGIC INC55 citations96
US6005731ADec 21, 1999
Channel quality circuit employing a test pattern generator in a sampled amplitude read channel for calibration
CIRRUS LOGIC INC68 citations96
US6005727ADec 21, 1999
Servo decoder for decoding an error correcting servo code recorded on a disc storage medium
CIRRUS LOGIC INC62 citations96
US5909332AJun 1, 1999
Sampled amplitude read channel employing interpolated timing recovery
CIRRUS LOGIC INC48 citations96
US5844509ADec 1, 1998
Synchronous read channel employing a data randomizer
CIRRUS LOGIC INC23 citations96
US5754352AMay 19, 1998
Synchronous read channel employing an expected sample value generator for acquiring a preamble
CIRRUS LOGIC INC72 citations96
US5576904ANov 19, 1996
Timing gradient smoothing circuit in a synchronous read channel
CIRRUS LOGIC INC40 citations96
US5424881AJun 13, 1995
Synchronous read channel
CIRRUS LOGIC INC81 citations96
US5359631AOct 25, 1994
Timing recovery circuit for synchronous waveform sampling
CIRRUS LOGIC INC71 citations96
US6108151AAug 22, 2000
Sampled amplitude read channel for reading user data and embedded servo data from a magnetic medium
CIRRUS LOGIC INC34 citations95
US6021011AFeb 1, 2000
Synchronous read channel employing a digital center frequency setting for a variable frequency oscillator in discrete time timing recovery
CIRRUS LOGIC INC30 citations95
US5978162ANov 2, 1999
Synchronous read channel integrated circuit employing a channel quality circuit for calibration
CIRRUS LOGIC INC23 citations95
US5844911ADec 1, 1998
Disc storage system with spare sectors dispersed at a regular interval around a data track to reduced access latency
CIRRUS LOGIC INC122 citations95
US5812334ASep 22, 1998
Synchronous read channel employing discrete timing recovery, transition detector, and sequence detector
CIRRUS LOGIC INC34 citations95
US5771127AJun 23, 1998
Sampled amplitude read channel employing interpolated timing recovery and a remod/demod sequence detector
CIRRUS LOGIC INC66 citations95
US5844738ADec 1, 1998
Synchronous read channel employing a sequence detector with programmable detector levels
CIRRUS LOGIC INC17 citations93
US6345074B1Feb 5, 2002
Maximum likelihood servo detector for detecting an error correcting servo code recorded on a disc storage medium
CIRRUS LOGIC INC26 citations92
US5987634ANov 16, 1999
Channel quality circuit in a sampled amplitude read channel
CIRRUS LOGIC INC30 citations92
US5903857AMay 11, 1999
Method and apparatus for calibrating an analog filter in a sampled amplitude read channel
CIRRUS LOGIC INC34 citations92
US5786951AJul 28, 1998
Sampled amplitude read channel employing a discrete time noise generator for calibration
CIRRUS LOGIC INC52 citations92
US5760984AJun 2, 1998
Cost reduced interpolated timing recovery in a sampled amplitude read channel
CIRRUS LOGIC INC40 citations92
US5729396AMar 17, 1998
Fault tolerant sync mark detector enabled relative to a frequency of an acquisition preamble for sampled amplitude recording
CIRRUS LOGIC INC39 citations92
US5717619AFeb 10, 1998
Cost reduced time varying fir filter
CIRRUS LOGIC INC45 citations92
US5623377AApr 22, 1997
Filtering a read signal to attenuate secondary pulses caused by pole tips of a thin film magnetic read head
CIRRUS LOGIC INC40 citations92
US5329554AJul 12, 1994
Digital pulse detector
CIRRUS LOGIC INC36 citations92
US5297184AMar 22, 1994
Gain control circuit for synchronous waveform sampling
CIRRUS LOGIC INC34 citations92
SILICON LAB INC
9 patentsUS6970717B2Nov 29, 2005
Digital architecture for radio-frequency apparatus and associated methods
SILICON LAB INC41 citations96
US6804497B2Oct 12, 2004
Partitioned radio-frequency apparatus and associated methods
SILICON LAB INC70 citations96
US7177610B2Feb 13, 2007
Calibrated low-noise current and voltage references and associated methods
SILICON LAB INC22 citations93
US7366478B2Apr 29, 2008
Partitioned radio-frequency apparatus and associated methods
SILICON LAB INC11 citations92
US7242912B2Jul 10, 2007
Partitioning of radio-frequency apparatus
SILICON LAB INC33 citations92
US7228109B2Jun 5, 2007
DC offset reduction in radio-frequency apparatus and associated methods
SILICON LAB INC20 citations92
US7035611B2Apr 25, 2006
Apparatus and method for front-end circuitry in radio-frequency apparatus
SILICON LAB INC37 citations92
US7024221B2Apr 4, 2006
Notch filter for DC offset reduction in radio-frequency apparatus and associated methods
SILICON LAB INC22 citations92
US6993314B2Jan 31, 2006
Apparatus for generating multiple radio frequencies in communication circuitry and associated methods
SILICON LAB INC35 citations92
SILICON LAB
2 patentsVISHAKHADATTA G DIWAKAR
1 patentCIRRUS LOGICE INC
1 patentShowing the top 50 of 73 patents by PatentIndex Score.