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Patent Assignment Details

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Reel/Frame:	006998/0212			Pages:	12
		Recorded:	05/12/1994
Conveyance:	COLLATERAL ASSIGNMENT OF LICENSES AND ROYALIES

Total properties: 32

Patent #:	4101849	Issue Dt:		Application #:	05739428	Filing Dt:
Title:

Patent #:	4097767	Issue Dt:		Application #:	05759734	Filing Dt:
Title:

Patent #:	4445053	Issue Dt:	04/24/1984	Application #:	05807234	Filing Dt:	06/16/1977
Title:	SQUARE LAW CHARGER

Patent #:	4112254	Issue Dt:		Application #:	05842465	Filing Dt:
Title:

Patent #:	4177356	Issue Dt:		Application #:	05843949	Filing Dt:
Title:

Patent #:	4136314	Issue Dt:	01/23/1979	Application #:	05846722	Filing Dt:	10/31/1977
Title:	ADAPTIVE FILTER

Patent #:	4182930	Issue Dt:	01/08/1980	Application #:	05885393	Filing Dt:	03/10/1978
Title:	DETECTION AND MONITORING DEVICE

Patent #:	4234804	Issue Dt:	11/18/1980	Application #:	05943859	Filing Dt:	09/19/1978
Title:	SIGNAL CORRECTION FOR ELECTRICAL GAIN CONTROL SYSTEMS

Patent #:	4182993	Issue Dt:	01/08/1980	Application #:	05957307	Filing Dt:	11/02/1978
Title:	SIGNAL AMPLITUDE COMPRESSION SYSTEM

Patent #:	4220929	Issue Dt:	09/02/1980	Application #:	05973019	Filing Dt:	12/26/1978
Title:	SIGNAL EXPANDER

Patent #:	4316107	Issue Dt:	02/16/1982	Application #:	06016148	Filing Dt:	02/28/1979
Title:	MULTIPLIER CIRCUIT

Patent #:	4316060	Issue Dt:	02/16/1982	Application #:	06109487	Filing Dt:	01/04/1980
Title:	EQUALIZING SYSTEM

Patent #:	4331931	Issue Dt:	05/25/1982	Application #:	06131225	Filing Dt:	03/17/1980
Title:	GAIN CONTROL SYSTEMS

Patent #:	4329598	Issue Dt:	05/11/1982	Application #:	06137427	Filing Dt:	04/04/1980
Title:	BIAS GENERATOR

Patent #:	4368425	Issue Dt:	01/11/1983	Application #:	06209894	Filing Dt:	11/24/1980
Title:	SYSTEM FOR AND METHOD OF TESTING TRANSISTORS

Patent #:	4415820	Issue Dt:	11/15/1983	Application #:	06237105	Filing Dt:	02/23/1981
Title:	TRANSISTOR DIFFERENTIAL CIRCUIT WITH EXPONENTIAL TRANSFER CHARACTERISTIC

Patent #:	4473793	Issue Dt:	09/25/1984	Application #:	06247648	Filing Dt:	03/26/1981
Title:	BIAS GENERATOR

Patent #:	4425551	Issue Dt:	01/10/1984	Application #:	06247649	Filing Dt:	03/26/1981
Title:	DIFFERENTIAL AMPLIFIER STAGE HAVING BIAS COMPENSATING MEANS

Patent #:	4409500	Issue Dt:	10/11/1983	Application #:	06247811	Filing Dt:	03/26/1981
Title:	OPERATIONAL RECTIFIER AND BIAS GENERATOR

Patent #:	4403199	Issue Dt:	09/06/1983	Application #:	06247829	Filing Dt:	03/26/1981
Title:	GAIN CONTROL SYSTEMS

Patent #:	4454433	Issue Dt:	06/12/1984	Application #:	06293470	Filing Dt:	08/17/1981
Title:	MULTIPLIER CIRCUIT

Patent #:	4434380	Issue Dt:	02/28/1984	Application #:	06316754	Filing Dt:	10/30/1981
Title:	COMPENSATION FOR VCA OP AMP ERRORS

Patent #:	4471324	Issue Dt:	09/11/1984	Application #:	06340878	Filing Dt:	01/19/1982
Title:	ALL NPN VCA

Patent #:	4430626	Issue Dt:	02/07/1984	Application #:	06355712	Filing Dt:	03/08/1982
Title:	NETWORKS FOR THE LOG DOMAIN

Patent #:	4467287	Issue Dt:	08/21/1984	Application #:	06385054	Filing Dt:	06/04/1982
Title:	SIGNAL EXPANDER

Patent #:	4377792	Issue Dt:	03/22/1983	Application #:	06387822	Filing Dt:	06/14/1982
Title:	COMPANDER SYSTEM

Patent #:	4539526	Issue Dt:	09/03/1985	Application #:	06462372	Filing Dt:	01/31/1983
Title:	ADAPTIVE SIGNAL WEIGHTING SYSTEM

Patent #:	4503553	Issue Dt:	03/05/1985	Application #:	06500972	Filing Dt:	06/03/1983
Title:	LOUDSPEAKER SYSTEM

Patent #:	4503554	Issue Dt:	03/05/1985	Application #:	06569498	Filing Dt:	01/09/1984
Title:	STEREOPHONIC BALANCE CONTROL SYSTEM

Patent #:	4588979	Issue Dt:	05/13/1986	Application #:	06658399	Filing Dt:	10/05/1984
Title:	ANALOG-TO-DIGITAL CONVERTER

Patent #:	4782284	Issue Dt:	11/01/1988	Application #:	07142940	Filing Dt:	01/12/1988
Title:	FREQUENCY ANALYZER

Patent #:	4924226	Issue Dt:	05/08/1990	Application #:	07226401	Filing Dt:	07/29/1988
Title:	SIGNAL ERROR COMPENSATION

Assignor

THAT CORPORATION

Exec Dt:

04/28/1994

Assignee

SHAWMUT BANK, N.A.

ONE FEDERAL STREET

BOSTON,, MASSACHUSETTS 02110

Correspondence name and address
	ALAN I. FALK
	SHERBURNE, POWERS & NEEDHAM
	ONE BEACON STREET
	BOSTON, MA 02108

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