United States Patent and Trademark Office, Patent Assignment 12530/846:
Assignment Of Assignors Interest

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Assignor
Assignee

Silicon Systems
Paperwork Executed October 4, 2001

Transfer

Recorded
January 22, 2002

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TDK Semiconductor Corporation

TDK Semiconductor Corporation
2642 Michelle Drive
Tustin, CA 92780

Patents
Correspondent

Mos Switched Capacitor Automatic Gain Control Circuit

USX0Patent Application No. 06774544, Filed September 10, 1985

USB1Utility Patent No. 4691172, Issued September 1, 1987

Precise Call Progress Detector

USX0Patent Application No. 06764934, Filed August 12, 1985

USB1Utility Patent No. 4742251, Issued May 3, 1988

Balanced Modulator For Auto Zero Networks

USX0Patent Application No. 07769338, Filed October 1, 1991

USB1Utility Patent No. 5168179, Issued December 1, 1992

Quadrature Amplitude Modulator Using Switched Capacitor Filter

USX0Patent Application No. 07044883, Filed May 1, 1987

USB1Utility Patent No. 4777453, Issued October 11, 1988

Synchronous Timer Anti-alias Filter And Gain Stage

USX0Patent Application No. 07045034, Filed May 1, 1987

USB1Utility Patent No. 4789995, Issued December 6, 1988

Method And Apparatus For Two Stage Automatic Gain Control

USX0Patent Application No. 07157988, Filed February 19, 1988

USB1Utility Patent No. 4870370, Issued September 26, 1989

Non-coherent Pattern Detection

USX0Patent Application No. 07158766, Filed February 22, 1988

USB1Utility Patent No. 4847868, Issued July 11, 1989

Digital Fast Recovery Timing Algorithm

USX0Patent Application No. 07158346, Filed February 22, 1988

USB1Utility Patent No. 4866739, Issued September 12, 1989

Phase Jitter Tracker

USX0Patent Application No. 07157986, Filed February 19, 1988

USB1Utility Patent No. 4953186, Issued August 28, 1990

Mixed Analog Digital Secondary Channel Fsk Modem

USX0Patent Application No. 07758347, Filed September 9, 1991

USB1Utility Patent No. 5214641, Issued May 25, 1993

A Configurable Architecture For Serial Communications

USX0Patent Application No. 08526200, Filed September 11, 1995

USB1Utility Patent No. 5561826, Issued October 1, 1996

A Reconfigurable Architecture For Multi-protocol Data Communications Having Selection Means And A Plurality Of Register Sets

USX0Patent Application No. 08201716, Filed February 25, 1994

USB1Utility Patent No. 5564061, Issued October 8, 1996

Adaptive Phase Lock Loop

USX0Patent Application No. 07633477, Filed December 21, 1990

USB1Utility Patent No. 5093847, Issued March 3, 1992

Precision Mos Resistor

USX0Patent Application No. 07873948, Filed April 23, 1992

USB1Utility Patent No. 5345118, Issued September 6, 1994

Listener Echo Cancellation

USX0Patent Application No. 07657535, Filed February 19, 1991

USB1Utility Patent No. 5189664, Issued February 23, 1993

Current Limit Circuit For Igbt Spark Drive Applications

USX0Patent Application No. 07924180, Filed August 3, 1992

USB1Utility Patent No. 5397978, Issued March 14, 1995

Programmable System For The Synchronization Of An Electronic Angular Position Indicator

USX0Patent Application No. 08287065, Filed August 8, 1994

USB1Utility Patent No. 5434800, Issued July 18, 1995

Programmable Electronic Angular Position Indicator Based Upon Engineering Units

USX0Patent Application No. 07935823, Filed August 26, 1992

USB1Utility Patent No. 5317614, Issued May 31, 1994

Adaptive Manchester Decoding With Adjustable Delay And Power Saving Mode

USX0Patent Application No. 08479613, Filed June 7, 1995

USB1Utility Patent No. 5726650, Issued March 10, 1998

Offset And Phase Correction For Delta-sigma Modulators

USX0Patent Application No. 08416614, Filed April 5, 1995

USB1Utility Patent No. 5561660, Issued October 1, 1996

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Updated April 2, 2002

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