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Reel/Frame:	010288/0161			Pages:	34
		Recorded:	10/08/1999
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 173
Page 2 of 2
Pages: 1 2

Patent #:	5408272	Issue Dt:	04/18/1995	Application #:	08165790	Filing Dt:	12/13/1993
Title:	METHOD OF PRODUCING A COMPOSITED VIDEO IMAGE BASED ON DEPTH

Patent #:	5465268	Issue Dt:	11/07/1995	Application #:	08181512	Filing Dt:	01/14/1994
Title:	DIGITAL DECODING OF BIPHASE-MARK ENCODED SERIAL DIGITAL SIGNALS

Patent #:	5465120	Issue Dt:	11/07/1995	Application #:	08192896	Filing Dt:	02/07/1994
Title:	SPIRAL BUFFER FOR NON-LINEAR EDITING

Patent #:	5400081	Issue Dt:	03/21/1995	Application #:	08196737	Filing Dt:	02/15/1994
Title:	CHROMA KEYER WITH CORRECTION FOR BACKGROUND DEFECTS

Patent #:	5430615	Issue Dt:	07/04/1995	Application #:	08203738	Filing Dt:	02/28/1994
Title:	PRINTED CIRCUIT BOARD ASSEMBLY

Patent #:	6044197	Issue Dt:	03/28/2000	Application #:	08209283	Filing Dt:	03/14/1994
Title:	RECORDING OF TIME CODE IN A DATABASE

Patent #:	5386242	Issue Dt:	01/31/1995	Application #:	08209764	Filing Dt:	03/14/1994
Title:	SELF KEYER WITH BACKGROUND GAP FILL

Patent #:	5448301	Issue Dt:	09/05/1995	Application #:	08248794	Filing Dt:	05/25/1994
Title:	PROGRAMMABLE VIDEO TRANSFORMATION RENDERING METHOD AND APPARATUS

Patent #:	5483538	Issue Dt:	01/09/1996	Application #:	08248795	Filing Dt:	05/25/1994
Title:	AUDIO FRAME SYNCHRONIZATION FOR EMBEDDED AUDIO DEMULTIPLEXERS

Patent #:	5528308	Issue Dt:	06/18/1996	Application #:	08251442	Filing Dt:	05/31/1994
Title:	DIRECT SYNTHESIS OF A DIGITAL AUDIO SAMPLE CLOCK

Patent #:	5506627	Issue Dt:	04/09/1996	Application #:	08257973	Filing Dt:	06/10/1994
Title:	PHASE LOCKED LOOP CHAIN FOR LOCKING AUDIO SAMPLING TO SERIAL DIGITAL COMPONENT VIDE TIMING

Patent #:	5452010	Issue Dt:	09/19/1995	Application #:	08276375	Filing Dt:	07/18/1994
Title:	SYNCHRONIZING DIGITAL VIDEO INPUTS

Patent #:	5668609	Issue Dt:	09/16/1997	Application #:	08303242	Filing Dt:	09/08/1994
Title:	MOTION DETECTOR AND KEY SIGNAL INTERPOLATOR USING SAME

Patent #:	5448302	Issue Dt:	09/05/1995	Application #:	08337909	Filing Dt:	11/14/1994
Title:	AUTO-TRANSLATING RECURSIVE EFFECTS APPARATUS AND METHOD

Patent #:	5534939	Issue Dt:	07/09/1996	Application #:	08352641	Filing Dt:	12/09/1994
Title:	DIGITAL VIDEO CLOCK GENERATION SYSTEM

Patent #:	5561714	Issue Dt:	10/01/1996	Application #:	08353610	Filing Dt:	12/12/1994
Title:	SCRAMBLING SYSTEM FOR SERIAL DIGITAL VIDEO

Patent #:	5523792	Issue Dt:	06/04/1996	Application #:	08359153	Filing Dt:	12/19/1994
Title:	COMPOSITE VIDEO SUB-PIXEL TIMING ADJUSTMENTS USING DIGITAL RESAMPLING

Patent #:	5619198	Issue Dt:	04/08/1997	Application #:	08366274	Filing Dt:	12/29/1994
Title:	NUMBER FORMAT CONVERSION APPARATUS FOR SIGNAL PROCESSING

Patent #:	5642497	Issue Dt:	06/24/1997	Application #:	08380273	Filing Dt:	01/30/1995
Title:	DIGITAL DISK RECORDER USING A PORT CLOCK HAVING PARALLEL TRACKS ALONG A TIMELINE WITH EACH TRACK REPRESENTING AN INDEPENDENTLY ACCESSIBLE MEDIA STREAM

Patent #:	5627951	Issue Dt:	05/06/1997	Application #:	08395233	Filing Dt:	02/27/1995
Title:	GRAPHICAL DISPLAY OR CHROMA KEYER CONTROLS

Patent #:	5696849	Issue Dt:	12/09/1997	Application #:	08418357	Filing Dt:	04/07/1995
Title:	CASCADED ANTI-ALIASING FILTER CONTROL FOR SAMPLED IMAGES

Patent #:	5612746	Issue Dt:	03/18/1997	Application #:	08419561	Filing Dt:	04/10/1995
Title:	BLOCK MATCHING FOR PICTURE MOTION ESTIMATION USING OFFSET QUANTIZED PIXELS

Patent #:	5585868	Issue Dt:	12/17/1996	Application #:	08431947	Filing Dt:	05/01/1995
Title:	VIDEO QUALITY IMPROVEMENT

Patent #:	5654762	Issue Dt:	08/05/1997	Application #:	08432350	Filing Dt:	05/01/1995
Title:	BLOCK MATCHING FOR PICTURE MOTION ESTIMATION USING GRAY CODES

Patent #:	5638133	Issue Dt:	06/10/1997	Application #:	08446180	Filing Dt:	05/19/1995
Title:	METHOD OF CREATING VIDEO EFECTS BY USE OF KEYFRAMES

Patent #:	5574662	Issue Dt:	11/12/1996	Application #:	08457895	Filing Dt:	06/01/1995
Title:	DISK-BASED DIGITAL VIDEO RECORDER

Patent #:	5623313	Issue Dt:	04/22/1997	Application #:	08532325	Filing Dt:	09/22/1995
Title:	FRACTIONAL PIXEL MOTION ESTIMATION OF VIDEO SIGNALS

Patent #:	5699120	Issue Dt:	12/16/1997	Application #:	08542963	Filing Dt:	10/13/1995
Title:	MOTION VECTOR USING A TRANSFORM FUNCTION IDENTIFICATON SIGNAL

Patent #:	5682209	Issue Dt:	10/28/1997	Application #:	08556481	Filing Dt:	11/13/1995
Title:	MOTION ESTIMATION USING LIMITED-TIME EARLY EXIT WITH PREQUALIFICATION MATRICES AND A PREDICTED SEARCH CENTER

Patent #:	5822005	Issue Dt:	10/13/1998	Application #:	08584494	Filing Dt:	01/11/1996
Title:	PRE-ODDIFICATION

Patent #:	5852473	Issue Dt:	12/22/1998	Application #:	08603302	Filing Dt:	02/20/1996
Title:	3-2 PULLDOWN DETECTOR

Patent #:	5719988	Issue Dt:	02/17/1998	Application #:	08604267	Filing Dt:	02/21/1996
Title:	DYNAMICALLY PAGED NON-VOLATILE RANDOM ACCESS VIDEO STORE

Patent #:	5786871	Issue Dt:	07/28/1998	Application #:	08625381	Filing Dt:	04/01/1996
Title:	CONSTANT LUMINANCE CORRECTOR

Patent #:	5801685	Issue Dt:	09/01/1998	Application #:	08629034	Filing Dt:	04/08/1996
Title:	AUTOMATIC EDITING OF RECORDED VIDEO ELEMENTS SYCHRONIZED WITH A SCRIPT TEXT READ OF DISPLAYED

Patent #:	5748247	Issue Dt:	05/05/1998	Application #:	08629421	Filing Dt:	04/08/1996
Title:	REFINEMENT OF BLOCK MOTION VECTORS TO ACHIEVE A DENSE MOTION FIELD

Patent #:	5777689	Issue Dt:	07/07/1998	Application #:	08630319	Filing Dt:	04/10/1996
Title:	METHOD AND APPARATUS FOR VIDEO SIGNAL SHARPENING

Patent #:	5712687	Issue Dt:	01/27/1998	Application #:	08637517	Filing Dt:	04/25/1996
Title:	CHROMINANCE RESAMPLING FOR COLOR IMAGES

Patent #:	5822326	Issue Dt:	10/13/1998	Application #:	08644560	Filing Dt:	05/10/1996
Title:	SYNCHRONIZING DIGITAL AUDIO SIGNALS

Patent #:	5793426	Issue Dt:	08/11/1998	Application #:	08669064	Filing Dt:	06/24/1996
Title:	VIDEO COMPRESSION ENHANCEMENT

Patent #:	5793435	Issue Dt:	08/11/1998	Application #:	08670041	Filing Dt:	06/25/1996
Title:	DEINTERLACING OF VIDEO USING A VARIABLE COEFFICIENT SPATIO-TEMPORAL FILTER

Patent #:	5739862	Issue Dt:	04/14/1998	Application #:	08774291	Filing Dt:	12/23/1996
Title:	REVERSE PLAYBACK OF MPEG VIDEO

Patent #:	5923710	Issue Dt:	07/13/1999	Application #:	08795213	Filing Dt:	02/05/1997
Title:	SYNCHRONOUS SWITCHING OF DIGITAL AUDIO WHILE MAINTAINING BLOCK ALIGNMENT

Patent #:	5754730	Issue Dt:	05/19/1998	Application #:	08826742	Filing Dt:	12/09/1996
Title:	METHOD FOR PREDICTING WHAT VIDEO DATA SHOULD BE IN A CACHE WHICH IS IN A DISK-BASED DIGITAL VIDEO RECORDER

Patent #:	5870028	Issue Dt:	02/09/1999	Application #:	08829550	Filing Dt:	03/28/1997
Title:	INPUT EXPANSION FOR CROSSPOINT SWITCH MODULE

Patent #:	5867229	Issue Dt:	02/02/1999	Application #:	08834615	Filing Dt:	04/14/1997
Title:	VIDEO EFFECTS USING A VIDEO RECORD/PLAYBACK DEVICE

Patent #:	5859549	Issue Dt:	01/12/1999	Application #:	08874527	Filing Dt:	06/13/1997
Title:	DIGITAL AUDIO FRAME AND BLOCK SYNCHONIZATION

Patent #:	5986717	Issue Dt:	11/16/1999	Application #:	08883991	Filing Dt:	06/27/1997
Title:	REAL-TIME VIDEO PRODUCTION USING RECURSIVE TECHNIQUES

Patent #:	6289172	Issue Dt:	09/11/2001	Application #:	08885074	Filing Dt:	06/30/1997
Title:	DISK-BASED DIGITAL VIDEO RECORDER

Patent #:	5949490	Issue Dt:	09/07/1999	Application #:	08889561	Filing Dt:	07/08/1997
Title:	DISTRIBUTING VIDEO BUFFER RATE CONTROL OVER A PARALLEL COMPRESSION ARCHITECTURE

Patent #:	6249555	Issue Dt:	06/19/2001	Application #:	08893586	Filing Dt:	07/14/1997
Title:	LOW JITTER DIGITAL EXTRACTION OF DATA FROM SERIAL BITSTREAMS

Patent #:	5943508	Issue Dt:	08/24/1999	Application #:	08901042	Filing Dt:	07/28/1997
Title:	SWITCHER USING SHARED DECOMPRESSION PROCESSORS FOR PROCESSING BOTH BROADBAND AND COMPRESSED VIDEO DATA

Patent #:	6130725	Issue Dt:	10/10/2000	Application #:	08924752	Filing Dt:	09/05/1997
Title:	SWITCHING REFERENCE GENERATION USING A SCANNING SYNC SEPARATOR

Patent #:	6034696	Issue Dt:	03/07/2000	Application #:	08928591	Filing Dt:	09/12/1997
Title:	SOURCE RELATIVE WARPING CORNER PINNING

Patent #:	5995151	Issue Dt:	11/30/1999	Application #:	08932681	Filing Dt:	09/18/1997
Title:	BIT RATE CONTROL MECHANISM FOR DIGITAL IMAGE AND VIDEO DATA COMPRESSION

Patent #:	5905538	Issue Dt:	05/18/1999	Application #:	08951190	Filing Dt:	10/15/1997
Title:	SYSTEM OF SWITCHING VIDEO OF TWO DIFFERENT STANDARDS

Patent #:	6243495	Issue Dt:	06/05/2001	Application #:	09023805	Filing Dt:	02/13/1998
Title:	METHOD A GROUP OF PICTURE STRUCTURE IN MPEG VIDEO

Patent #:	6256686	Issue Dt:	07/03/2001	Application #:	09063952	Filing Dt:	04/21/1998
Title:	BI-DIRECTIONAL SERIAL VIDEO PORT

Patent #:	6104997	Issue Dt:	08/15/2000	Application #:	09064805	Filing Dt:	04/22/1998
Title:	DIGITAL AUDIO RECEIVER WITH MULTI-CHANNEL SWAPPING

Patent #:	6504569	Issue Dt:	01/07/2003	Application #:	09064889	Filing Dt:	04/22/1998
Title:	2-D EXTENDED IMAGE GENERATION FROM 3-D DATA EXTRACTED FROM A VIDEO SEQUENCE

Patent #:	6526169	Issue Dt:	02/25/2003	Application #:	09270233	Filing Dt:	03/15/1999
Title:	HISTOGRAM-BASED SEGMENTATION OF OBJECTS FROM A VIDEO SIGNAL VIA COLOR MOMENTS

Patent #:	6588018	Issue Dt:	07/01/2003	Application #:	09289423	Filing Dt:	04/09/1999
Title:	AUTOMATION PROTOCOL SUBSCRIPTION SERVICE

Patent #:	6917692	Issue Dt:	07/12/2005	Application #:	09318682	Filing Dt:	05/25/1999
Title:	KALMAN TRACKING OF COLOR OBJECTS

Patent #:	6381363	Issue Dt:	04/30/2002	Application #:	09326164	Filing Dt:	06/04/1999
Title:	HISTOGRAM-BASED SEGMENTATION OF IMAGES AND VIDEO VIA COLOR MOMENTS

Patent #:	6549190	Issue Dt:	04/15/2003	Application #:	09339358	Filing Dt:	06/23/1999
Title:	GRAPHICAL SOURCE IDENTIFICATION DISPLAY

Patent #:	6574655	Issue Dt:	06/03/2003	Application #:	09342490	Filing Dt:	06/29/1999
Title:	ASSOCIATIVE MANAGEMENT OF MULTIMEDIA ASSETS AND ASSOCIATED RESOURCES USING MULTI-DOMAIN AGENT-BASED COMMUNICATION BETWEEN HETEROGENEOUS PEERS

Patent #:	6259488	Issue Dt:	07/10/2001	Application #:	09360804	Filing Dt:	07/22/1999
Title:	CONCEALING TEMPORAL SHIFT WHEN USING A DIGITAL VIDEO EFFECT SYSTEM WITH A VIDEO SWITCHER

Patent #:	6429900	Issue Dt:	08/06/2002	Application #:	09364371	Filing Dt:	07/30/1999
Title:	TRANSMISSION OF WIDEBAND CHROMA SIGNALS

Patent #:	6437831	Issue Dt:	08/20/2002	Application #:	09364372	Filing Dt:	07/30/1999
Title:	EFFECTS RECALL BETWEEN MIX/EFFECTS BANKS

Patent #:	6421095	Issue Dt:	07/16/2002	Application #:	09364554	Filing Dt:	07/29/1999
Title:	KEY PRIORITY FOR A MIX/EFFECT BANK HAVING MULTIPLE KEYERS

Patent #:	6831704	Issue Dt:	12/14/2004	Application #:	09365282	Filing Dt:	07/30/1999
Title:	LINKING EXTERNAL DEVICES TO SWITCHER TRANSITIONS

Patent #:	6597376	Issue Dt:	07/22/2003	Application #:	09365330	Filing Dt:	07/30/1999
Title:	MIX/EFFECT STATUS DISPLAY

Patent #:	6281941	Issue Dt:	08/28/2001	Application #:	09365332	Filing Dt:	07/30/1999
Title:	MIX-EFFECT BANK WITH MULTIPLE PROGRAMMABLE OUTPUTS

Patent #:	6480545	Issue Dt:	11/12/2002	Application #:	09372447	Filing Dt:	08/11/1999
Title:	ARCHITECTURE FOR MULTI-FORMAT VIDEO PROCESSING

Assignor

GRASS VALLEY GROUP INC.

Exec Dt:

09/24/1999

Assignee

TEKTRONIX, INC., AN OREGON CORPORATION

26600 SW PARKWAY, M/S 63-820

WILSONVILLE, OREGON 97070

Correspondence name and address
	TEKTRONIX, INC.
	JOHN WINKELMAN
	(63-LAW)
	P.O. BOX 1000
	WILSONVILLE, OREGON 97070-1000

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