Inventor

Robert J. Topper

Inventor

Hatboro, PA, US

Overview

30→

Patents

1985–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 30 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Nprimary

H04NPictorial communication, e.g. television77%

H03MCoding10%

G06TImage data processing or generation, in general6%

H03JTuning resonant circuits3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

PatentTitleYear

10,693,442Universal automatic frequency control for multi-channel receivers2020 7,084,924'Method, apparatus, and system for displaying widescreen video images on standard video displays'2006 6,545,719'Apparatus and method for concealing interpolation artifacts in a video interlaced to progressive scan converter'2003 6,473,460'Method and apparatus for calculating motion vectors'2002 6,002,434'Registration correction waveform determination method and system for a television camera'1999 5,659,313'System and method for reducing noise during analog to digital conversion'1997 5,610,604'Analog to digital converter providing varying digital resolution'1997 5,586,200'Segmentation based image compression system'1996 5,574,513'Color selection aperture correction circuit'1996 5,548,332'Apparatus and method for black shading correction'1996 5,420,971'Image edge finder which operates over multiple picture element ranges'1995 5,418,563'Dynamic peaking aperture correction for use with a CCD camera'1995 5,298,981'Color signal aperture correction system having automatically selected source signal'1994 5,255,093'Apparatus and a method for limiting gain in a digital gamma corrector'1993 5,231,398'Method and apparatus for self-tracking multiple analog to digital conversion'1993 5,227,883'Method and apparatus for motion aperture correction'1993 5,157,497'Method and apparatus for detecting and compensating for white shading errors in a digitized video signal'1992 5,132,796'Method and apparatus for digitally processing gamma pedestal and gain'1992 4,845,546'Composite pal video translator'1989 4,833,526'Three dimensional non-adaptive decoder for a PAL color television composite signal'1989 4,814,863'Detection and concealing artifacts in combed video signals'1989 4,797,731'Method and apparatus for compatibly locking horizontal sync to the PAL subcarrier'1989 4,758,882'Chrominance detection circuit comparing the polarity of high frequency signals separated by a field or frame'1988 4,684,977'Luminance/chrominance separation circuitry'1987 4,683,498'Compatible wide-screen television system camera'1987 4,679,084'Method and apparatus for freezing a television picture'1987 4,677,483'Interpolation filter with motion compensation'1987 4,673,978'Progressive scan processor with plural frequency band interpolation'1987 4,589,019'Digital adder including counter coupled to individual bits of the input'1986 4,499,494'Television gamma corrector with symmetrical response about black-level'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1987Patents assigned to RCA CORP (7)· patent assignee history

1985–1986Based in Rockledge, PA, US· patent location history

1987–2020Based in Hatboro, PA, US· patent location history

1987Based in Philadelphia, PA, US· patent location history

1988–2006Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (11)· patent assignee history

1993–1997Patents assigned to PANASONIC TECHNOLOGIES INC (10)· patent assignee history

1993Patents assigned to DISCHERT LEE R (1)· patent assignee history

2020Patents assigned to SIRIUS XM RADIO INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	11	1988–2006
PANASONIC TECHNOLOGIES INC	10	1993–1997
RCA CORP	7	1985–1987
DISCHERT LEE R	1	1993
SIRIUS XM RADIO INC	1	2020

Locations

Location	Patents	Span
Hatboro, Pennsylvania, US	26	1987–2020
Philadelphia, Pennsylvania, US	2	1987
Rockledge, Pennsylvania, US	2	1985–1986