IP Library › Assignment 010742/0623
Patent Assignment
Reel/Frame 010742/0623

Assignment of Assignor's Interest

Recorded: 2000-04-13 Pages: 4
Assignor
CRYSTAL SEMICONDUCTOR CORPORATION
Executed: 2000-03-22
Assignee
CIRRUS LOGIC, INC.
4210 S. INDUSTRIAL DRIVE, AUSTIN, TEXAS, 78744
Covered Properties (91)
Self-Calibration Method for Capacitors in a Monolithic Integrated Circuit
Patent: 4,709,225 →
Application: 06/809,530 →
Switched-Capacitor Filter Having Digitally-Programmable Capacitive Element
Patent: 4,849,662 →
Application: 06/851,805 →
Method for Reducing Effects of Electrical Noise in an Analog-to-Digital Converter
Patent: 4,746,899 →
Application: 06/916,160 →
Method and Circuitry for Generating Reference Voltages
Patent: 4,804,863 →
Application: 06/929,711 →
Quasi Auto-Zero Circuit for Sampling Amplifiers
Patent: 4,748,418 →
Application: 06/929,984 →
Clock Multiplier/Jitter Attenuator
Patent: 4,805,198 →
Application: 07/051,985 →
Gain Scaling of Oversampled Analog-to-Digital Converters
Patent: 4,851,841 →
Application: 07/104,439 →
Digitally Calibrated Delta-Sigma Analog-to-Digital Converter
Patent: 4,943,807 →
Application: 07/180,889 →
Chopper Stabilized Delta-Sigma Analog-to-Digital Converter
Patent: 4,939,516 →
Application: 07/205,996 →
Compensated Capacitors for Switched Capacitor Input of an Analog-to-Digital Converter
Patent: 4,918,454 →
Application: 07/257,477 →
Clock Multiplier/Jitter Attenuator
Patent: 5,150,386 →
Application: 07/308,326 →
Linear Jitter Attenuator
Patent: 4,941,156 →
Application: 07/327,027 →
Low Power Output Stage Circuitry in an Amplifier
Patent: 4,988,954 →
Application: 07/345,320 →
Combining Continuous Time and Discrete Time Signal Processing in a Delta-Sigma Modulator
Patent: 5,079,550 →
Application: 07/428,396 →
Combining Fully-Differential and Single-Ended Signal Processing in a Delta-Sigma Modulator
Patent: 5,068,660 →
Application: 07/428,397 →
Delta-Sigma Analog-to-Digital Converter with Chopper Stabilization at the Sampling Frequency
Patent: 5,039,989 →
Application: 07/429,211 →
Method and Apparatus for Synchronizing an Optical Transceiver Over a Full Duplex Data Communication Channel
Patent: 5,111,451 →
Application: 07/429,213 →
Delta-Sigma Modulator with Oscillation Detect and Reset Circuit
Patent: 5,012,244 →
Application: 07/429,214 →
Linear Channel Bandwidth Calibration Circuit
Patent: 5,088,107 →
Application: 07/429,225 →
Compensated Capacitors for Switched Capacitor Input of an Analog-to- Digital Converter
Patent: 5,208,597 →
Application: 07/455,171 →
Dc Calibration System for a Digital-to-Analog Converter
Patent: 5,087,914 →
Application: 07/571,375 →
Phase Equalization System for a Digital-to-Analog Converter Utilizing Separate Digital and Analog Sections
Patent: 5,061,925 →
Application: 07/571,376 →
Slew Rate Enhanced Linear Amplifier
Patent: 5,140,279 →
Application: 07/621,471 →
Compensation for a Feedback Amplifier with Current Output Stage
Patent: 5,117,200 →
Application: 07/621,475 →
Method for Tone Avoidance in Delta-Sigma Converters
Patent: 5,055,846 →
Application: 07/622,369 →
Amplifier with Controlled Output Impedance
Patent: 5,121,080 →
Application: 07/633,478 →
Low Distortion Amplifier Output Stage for Dac
Patent: 5,198,782 →
Application: 07/641,182 →
High Order Switched-Capacitor Filter with Dac Input
Patent: 5,245,344 →
Application: 07/641,183 →
Low Distortion Unity Gain Amplifier for Dac
Patent: 5,239,210 →
Application: 07/642,280 →
Dac Shutdown for Low Power Supply Condition
Patent: 5,258,758 →
Application: 07/648,791 →
Variable Decimation Architecture for a Delta-Sigma Analog-to-Digital Converter
Patent: 5,157,395 →
Application: 07/664,034 →
Ratiometric a/D Converter with Non-Rationometric Error Offset
Patent: 5,172,115 →
Application: 07/717,981 →
Input Sampling Switch Charge Conservation
Patent: 5,187,390 →
Application: 07/729,355 →
Method and Circuitry for Decreasing the Recovery Time of an Mos Differential Voltage Comparator
Patent: 5,247,210 →
Application: 07/737,558 →
Low Precision Finite Impulse Response Filter for Digital Interpolation
Patent: 5,212,659 →
Application: 07/773,044 →
Offset Calibration of a Dac Using a Calibrated Adc
Patent: 5,248,970 →
Application: 07/790,574 →
Fourth Order Digital Delta-Sigma Modulator
Patent: 5,196,850 →
Application: 07/791,977 →
Tri-Level Capacitor Structure in Switched-Capacitor Filter
Patent: 5,220,483 →
Application: 07/821,034 →
Delta-Sigma Modulator for an Analog-to-Digital Converter with Low Thermal Noise Performance
Patent: 5,274,375 →
Application: 07/870,059 →
Method and Apparatus for Calibrating a Multi-Bit Delta-Sigma Modulator
Patent: 5,257,026 →
Application: 07/870,270 →
Low Noise Transmission of Output Data from a Delta-Sigma Modulator
Patent: 5,528,239 →
Application: 07/870,599 →
Analog-To-Digital Converter with a Continuously Calibrated Voltage Reference
Patent: 5,319,370 →
Application: 07/937,642 →
Method and Apparatus for Calibration of a Monolithic Voltage Reference
Patent: 5,440,305 →
Application: 07/937,993 →
Detent Switching of Summing Node Capacitors of a Delta-Sigma Modulator
Patent: 5,351,050 →
Application: 07/970,693 →
Low Drift Resistor Structure for Amplifiers
Patent: 5,319,319 →
Application: 08/018,020 →
Low Drift Resistor Structure
Patent: 5,268,651 →
Application: 08/018,358 →
Dense Offset Calibration Circuitry and Method
Patent: 5,397,944 →
Application: 08/045,855 →
Integrated Voltage Divider and Circuit Employing an Integrated Voltage Divider
Patent: 5,339,067 →
Application: 08/060,431 →
One-Bit Switched-Capacitor D/a Circuit with Continuous Time Linearity
Patent: 5,376,936 →
Application: 08/078,591 →
Compound Triple Cascoded Mirror
Patent: 5,412,348 →
Application: 08/087,842 →
Current Limited Current Reference for Non-Volatile Memory Sensing
Patent: 5,608,676 →
Application: 08/114,478 →
Method and Apparatus for Removing Trapped Oxide Charge from a Differential Input Stage
Patent: 5,621,339 →
Application: 08/121,244 →
Integrated Codec with a Se;F-Calibratng Adc and Dac
Patent: 5,818,370 →
Application: 08/128,381 →
Amplifier with Input Common Mode Compensation
Patent: 5,475,323 →
Application: 08/186,787 →
Configuration Programming of a Digital Audio Serial Port Using No Additional Pins
Patent: 5,594,442 →
Application: 08/212,978 →
Switched-Capacitor Integrator with Chopper Stabilization Performed at the Sampling Rate
Patent: 5,477,481 →
Application: 08/221,985 →
Arithmetic-Free Digital Interpolation Filter Architecture
Patent: 5,541,864 →
Application: 08/233,814 →
Resynchronization of a Synchronous Serial Interface
Patent: 5,748,684 →
Application: 08/255,828 →
Digital Decimation Filter for Delta Sigma Analog-to-Digital Conversion with Reduced Hardware Complexity
Patent: 5,590,065 →
Application: 08/288,624 →
Diagnosing Problems in an Electrical System by Monitoring Changes in Nonlinear Characteristics
Patent: 5,594,439 →
Application: 08/295,451 →
Analog-To-Digital Converter with Digital Linearity Correction
Patent: 5,594,612 →
Application: 08/295,522 →
Digital-To-Analog Converter with Digital Linearity Correction
Patent: 5,583,501 →
Application: 08/296,222 →
Algorithmic Analog-to-Digital Converter Having Redundancy and Digital Calibration
Patent: 5,644,308 →
Application: 08/372,954 →
Low Power Class-Ab Integrated Circuit Amplifier
Patent: 5,497,122 →
Application: 08/377,529 →
Digital Filter with Decimated Frequency Response
Patent: 5,696,708 →
Application: 08/413,356 →
Controlled Impedance Amplifier
Patent: 5,585,763 →
Application: 08/413,994 →
Multiple Function Analog-to-Digital Converter with Multiple Serial Outputs
Patent: 5,652,585 →
Application: 08/416,618 →
Tone Signal Generator for Producing Multioperator Tone Signals Using an Operator Circuit Including a Waveform Generator, a Selector and a Enveloper
Patent: 5,665,929 →
Application: 08/497,035 →
Tone Signal Generator for Producing Multioperator Tone Signals
Patent: 5,644,098 →
Application: 08/497,044 →
Tone Signal Generator for Producing Multioperator Tone Signals
Patent: 5,698,805 →
Application: 08/528,031 →
Data Independent Loading of a Reference in a Discrete Time System
Patent: 5,541,599 →
Application: 08/532,991 →
Amplifier Having Frequency Compensation by Gain Degeneration
Patent: 5,642,078 →
Application: 08/535,977 →
Half-Duplex Controller
Patent: 5,764,753 →
Application: 08/536,054 →
Double-Talk Detector for Echo Canceller
Patent: 5,631,900 →
Application: 08/536,986 →
Method and Apparatus for Decreasing the Interference and Noise Sensitivity of a Ratiometric Converter Type of Circuit
Patent: 5,579,247 →
Application: 08/537,224 →
Variable Gain Echo Suppressor
Patent: 5,668,794 →
Application: 08/552,558 →
High Pass Filter with Coefficient Switching to Improve Settling Time
Patent: 5,777,909 →
Application: 08/580,581 →
Low Power Class Ab Integrated Circuit Amplifier Having Improved Linearity When Driving High Impedance Loads
Patent: 5,825,244 →
Application: 08/610,050 →
Linear Phase Finite Impulse Response Filter with Pre-Addition
Patent: 5,777,912 →
Application: 08/623,134 →
Delta Sigma Switch Capacitor Filter Using Current Feed Forward
Patent: 5,767,722 →
Application: 08/627,752 →
Sampling Circuit Charge Management Using a Single Capacitor for Two Input Signals
Patent: 5,644,257 →
Application: 08/635,570 →
Output Driver for Pci Bus
Patent: 5,751,179 →
Application: 08/639,369 →
Wavetable Synthesizer and Operating Method Using a Variable Sampling Rate Approximation
Patent: 5,744,739 →
Application: 08/713,341 →
Reduced-Memory Reverberation Simulator in a Sound Synthesizer
Patent: 5,917,917 →
Application: 08/713,343 →
Fully Differential High Gain Cascode Amplifier
Patent: 5,748,040 →
Application: 08/749,383 →
Reduced Power Fir Filter
Patent: 5,923,273 →
Application: 08/751,708 →
Ultra Low Power Multiplier
Patent: 5,787,029 →
Application: 08/782,527 →
Apparatus and Method for Approximating an Exponential Decay in a Sound Synthesizer
Patent: 5,824,936 →
Application: 08/785,465 →
Serial Port Interface System and Method for an Analog-to-Digital Converter
Patent: 5,886,658 →
Application: 08/856,558 →
Method for Exponent Processing in an Audio Decoding System
Patent: 5,960,401 →
Application: 08/970,302 →
Zero Detection Circuitry and Methods
Patent: 5,978,825 →
Application: 08/970,796 →
Related Assignments (24)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Mar 6, 1986
From: WELLAND, DAVID R.; CALLAHAN, MICHAEL J.
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 004520/0082 →
Assignment of Assignors Interest. Apr 14, 1986
From: HOLBERG, DOUGLAS R.; SWANSON, ERIC J.
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 004541/0785 →
Assignment of Assignors Interest. Jul 8, 1987
From: STERN, KENNETH J.; SOOCH, NAVDEEP S.; HEIN, JERRELL P.
To: CRYSTAL SEMICONDUCTOR CORPORATION, 2024 E. SAINT ELMO RD., AUSTIN, TX 78744
Reel/Frame 004990/0659 →
Assignment of Assignors Interest. Oct 2, 1987
From: SOOCH, NAVDEEP S.
To: CRYSTAL SEMICONDUCTOR CORPORATION, 2024 EAST SAINT ELMO ROAD AUSTIN, TEXAS 78744
Reel/Frame 004793/0968 →
Assignment of Assignors Interest. Apr 13, 1988
From: EARLY, ADRIAN B.; HARRIS, LARRY L.; CALLAHAN, MICHAEL J. JR.
To: CRYSTAL SEMICONDUCTOR CORPORATION, A DE. CORP.
Reel/Frame 004880/0366 →
Assignment of Assignors Interest. Jun 13, 1988
From: EARLY, ADRIAN B.
To: CRYSTAL SEMICONDUCTOR
Reel/Frame 005024/0959 →
Assignment of Assignors Interest. Dec 5, 1988
From: EARLY, ADRIAN B.; SCOTT, BAKER P. L. III
To: CRYSTAL SEMICONDUCTOR, 4120 S. INDUSTRIAL DRIVE, P.O. BOX 17847, AUSTIN, TX 78760
Reel/Frame 004989/0318 →
Assignment of Assignors Interest. Apr 24, 1989
From: STERN, KENNETH J.; BECK, JOHN A.
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005066/0867 →
Security Interest May 1, 1989
From: CRYSTAL SEMICONDUCTOR CORPORATION
To: CASH, H. BERRY
Reel/Frame 005072/0590 →
Assignment of Assignors Interest. Jun 26, 1989
From: STERN, KENNETH J.; BILY, STEPHEN F.
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005123/0395 →
Released by Secured Party Security Agreement Recorded on Reel 5072 Frame 0590 Jan 2, 1990
From: CASH, H. BERRY, 13355 NOEL RD., STE. 1375/LB65, DALLAS, TX. 75240
To: CRYSTAL SEMICONDUCTOR CORPORATION, 4210 S. INDUSTRIAL DR., AUSTIN, TX. 78744
Reel/Frame 005203/0334 →
Assignment of Assignors Interest. Jan 10, 1990
From: CRYSTAL SEMICONDUCTOR CORPORATION
To: TECHNOLOGY FUNDING SECURED INVESTORS, A CA LIMITED PARTNERSHIP
Reel/Frame 005323/0555 →
Assignment of Assignors Interest. Jan 19, 1990
From: PLASECKI, DOUGLAS S.; SWANSON, ERIC J.; HERSHBARGER, RUSSELL A.
To: CRYSTAL SEMICONDUCTOR
Reel/Frame 005225/0448 →
Assignment of Assignors Interest. Jan 26, 1990
From: PIASECKI, DOUGLAS S.; SWANSON, ERIC J.
To: CRYSTAL SEMICONDUCTOR
Reel/Frame 005225/0642 →
Assignment of Assignors Interest. Jan 30, 1990
From: SWANSON, ERIC J.; DEL SIGNORE, BRUCE P.
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005226/0975 →
Assignment of Assignors Interest. Jan 30, 1990
From: SOOCH, NAVDEEP S.; KERTH, DONALD A.; DEL SIGNORE, BRUCE P.; SWANSON, ERIC J.
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005226/0978 →
Assignment of Assignors Interest. Mar 5, 1990
From: WELLAND, DAVID REID; DEL SIGNORE, BRUCE PHILIP; KERTH, DONALD ALLAN
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005248/0933 →
Assignment of Assignors Interest. Oct 26, 1990
From: SOOCH, NAVDEEP S.; SCOTT, JEFFREY W.; TANAKA, TADASHI
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005502/0435 →
Assignment of Assignors Interest. Oct 26, 1990
From: SOOCH, NAVDEEP S.; KERTH, DONALD A.; SWANSON, ERIC J.; SUGIMOTO, TETSUROU
To: CRYSTAL SEMICONDUCTOR CORPORATION,
Reel/Frame 005517/0071 →
Assignment of Assignors Interest. Dec 21, 1990
From: SCOTT, III, BAKER P. L.; SWANSON, ERIC J.
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005561/0007 →
Assignment of Assignors Interest. Feb 12, 1991
From: SCOTT, BAKER P. L.
To: CRYSTAL SEMICONDUCTOR CORPORATION, 4210 SOUTH INDUSTRIAL DRIVE, AUSTIN, TEXAS 78744
Reel/Frame 005616/0812 →
Assignment of Assignors Interest. Feb 12, 1991
From: SCOTT, BAKER PERKINS LEE, III
To: CRYSTAL SEMICONDUCTOR CORPORATION,
Reel/Frame 005602/0166 →
Released by Secured Party Mar 7, 1991
From: TECHNOLOGY FUNDING SECURED INVESTORS II, A CALIFORNIA LIMITED PARTNERSHIP
To: CRYSTAL SEMICONDUCTOR CORPORATION
Reel/Frame 005732/0027 →
Security Interest May 14, 1996
From: CRYSTAL SEMICONDUCTOR CORPORATION
To: BANK OF AMERICA NATIONAL TRUST & SAVINGS ASSOCIATION, AS AGENT
Reel/Frame 007986/0878 →