Inventor

Chandrakant B. Patel

Inventor

Hopewell, NJ, US

Overview

1985–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 75 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television41%

H04LTransmission of digital information, e.g. telegraphic communication20%

H04BTransmission13%

H03DDemodulation or transference of modulation from one carrier to another11%

H04HBroadcast communication2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

B41MPrinting, duplicating, marking, or copying processes1%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses1%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry1%

B29CShaping or joining of plastics1%

PatentTitleYear

11,084,2103D printer with tuned coolant droplets2021 8,265,129'Digital receiver with system for controlling the operating mode of an adaptive equalizer'2012 7,038,732'DTV signal with GCR components in plural-data-segment frame headers and receiver apparatus for such signal'2006 6,939,826'Product authentication'2005 6,937,292'Ghost cancellation reference signal with bessel chirps and PN sequences, and TV receiver using such signal'2005 6,873,371'Ghost cancellation reference signal with bessel chirps and PN sequences, and TV receiver using such signal'2005 6,803,970'Digital television receiver with match filter responsive to field synchronization code'2004 6,768,517'Repetitive-PN1023-sequence echo-cancellation reference signal for single-carrier digital television broadcast systems'2004 RE038456'Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers'2004 6,545,728'Digital television receivers that digitize final I-F signals resulting from triple-conversion'2003 6,544,926'Microcapsules having improved printing and efficiency'2003 6,535,553'Passband equalizers with filter coefficients calculated from modulated carrier signals'2003 6,526,101'Receiver for QAM digital television signals'2003 6,512,555'Radio receiver for vestigal-sideband amplitude-modulation digital television signals'2003 6,496,230'Digital TV signal receiver with direct conversion from UHF I-F to Low-Band I-F before digital demodulation'2002 6,480,239'Ghost cancellation reference signal with bessel chirps and PN sequences, and TV receiver using such signal'2002 6,426,780'DTV receiver with low-band final I-F signal filtered for suppressing co-channel interfering NTSC audio carrier'2002 6,396,542'TV receiver having kinescope with 16:9 aspect ratio screen and dot pitch for 480 lines per frame resolution'2002 6,377,312'Adaptive fractionally spaced equalizer for received radio transmissions with digital content, such as DTV signals'2002 6,333,767'Radio receivers for receiving both VSB and QAM digital television signals with carriers offset by 2.69 MHz'2001 6,313,885'DTV receiver with baseband equalization filters for QAM signal and for VSB signal which employ common elements'2001 6,313,882'TV reception apparatus using same ghost-cancellation circuitry for receiving different types of TV signals'2001 6,300,984'Ghost-cancellation reference signals using spaced PN sequences'2001 6,222,592'TV receiver equalizer storing channel characterizations for each TV channel between times of reception therefrom'2001 6,211,924'Decimation of baseband DTV signal prior to channel equalization in digital television signal receivers'2001 6,184,942'Adaptively receiving digital television signals transmitted in various formats'2001 6,184,938'Ghost cancellation reference signal with bessel chirps & PN sequences, & TV receiver using such signal'2001 6,137,545'Reception mode control in radio receivers for receiving both VSB and QAM digital television signals'2000 6,134,373'System for recording and reproducing a wide bandwidth video signal via a narrow bandwidth medium'2000 6,123,266'Cooling system for stand-alone battery cabinets'2000 6,124,898'Digital television receiver with equalization performed on digital intermediate-frequency signals'2000 6,118,495'Training signal in plural PN sequences near beginnings of data segments of DTV signal or scan lines of NTSC signal'2000 6,104,442'Radio receiver for receiving both VSB and QAM digital HDTV signals'2000 5,999,223'System for controlling the operating mode of an adaptive equalizer within a digital TV signal receiver'1999 5,966,188'Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers'1999 5,959,699'Reception mode control in radio receivers for receiving both VSB and QAM digital television signals'1999 5,805,053'Appliance adapted for power line communications'1998 5,777,545'Remote control apparatus for power line communications system'1998 5,731,848'Digital VSB detector with bandpass phase tracker using Ng filters, as for use in an HDTV receiver'1998 5,715,012'Radio receivers for receiving both VSB and QAM digital HDTV signals'1998 5,712,614'Power line communications system'1998 5,708,701'Power line telephone communications system having on hook digital voiceband messaging'1998 5,705,974'Power line communications system and coupling circuit for power line communications system'1998 5,659,372'Digital TV detector responding to final-IF signal with vestigial sideband below full sideband in frequency'1997 5,648,987'Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as HDTV receivers'1997 5,636,252'Automatic gain control of radio receiver for receiving digital high-definition television signals'1997 5,606,579'Digital VSB detector with final IF carrier at submultiple of symbol rate, as for HDTV receiver'1997 5,600,380'Ghost-cancelation reference signal acquisition circuitry, as for TV receiver or video recorder'1997 5,548,617'Digital VSB detector with bandpass phase tracker using rader filters, as for use in an HDTV receiver'1996 5,532,755'Apparatus for suppressing ghosts in signals modulating a carrier in quadrature phasing with a video carrier'1996 5,506,636'HDTV signal receiver with imaginary-sample-presence detector for QAM/VSB mode selection'1996 5,500,739'Frequency-multiplexing FM luma signal with color and 2nd under signals having overlapping frequency spectra'1996 5,481,316'System, apparatus and method for canceling televison ghost signals'1996 5,479,449'Digital VSB detector with bandpass phase tracker, as for inclusion in an HDTV receiver.'1995 5,461,426'Apparatus for processing modified NTSC television signals, with digital signals buried therewithin'1995 5,361,102'System to cancel ghosts in NTSC television transmission'1994 5,341,177'System to cancel ghosts generated by multipath transmission of television signals'1994 5,331,416'Methods for operating ghost-cancelation circuitry for TV receiver or video recorder'1994 5,294,979'Estimation of noise using burst gate response to video signal'1994 5,196,851'Linearizing non-linear analog-to-digital process and circuit'1993 5,113,262'Video signal recording system enabling limited bandwidth recording and playback'1992 5,083,197'Apparatus for restoring the correct phase relation of the chroma and luminance signals passed through separate paths'1992 5,053,615'Correction algorithm for contiguous CCD elements leakage'1991 4,862,271'Video signal interpolator with peaking'1989 4,853,766'Widescreen video signal processor with auxiliary modulated by widescreen information'1989 4,731,648'Interstitial signal generating system'1988 4,703,340'Frequency division multiplexed analog to digital converter'1987 4,700,217'Chrominance signal phase locked loop system for use in a digital television receiver having a line-locked clock signal'1987 4,694,327'Digital phase locked loop stabilization circuitry using a secondary digital phase locked loop'1987 4,686,560'Phase locked loop system including analog and digital components'1987 4,686,561'Vertical detail information restoration circuit'1987 4,663,653'Vertical detail enhancer'1987 4,651,196'Adaptive control of the chrominance signal frequency response in a video signal processing system'1987 4,594,610'Camera zoom compensator for television stereo audio'1986 4,513,323'Buzz reduction for intercarrier type television sound detection'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1988Patents assigned to RCA CORP (10)· patent assignee history

1985–2012Based in Hopewell, NJ, US· patent location history

1989Patents assigned to GEN ELECTRIC (2)· patent assignee history

1991–2012Patents assigned to SAMSUNG ELECTRONICS CO LTD (51)· patent assignee history

1998Patents assigned to ELCOM TECH CORP (4)· patent assignee history

1999–2002Based in Hopewell Township, Mercer County, NJ, US· patent location history

2000Based in Lakewood, NJ, US· patent location history

2003–2005Patents assigned to APPLETON PAPER INC (2)· patent assignee history

2003–2005Based in Neenah, WI, US· patent location history

2021Based in Fremont, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SAMSUNG ELECTRONICS CO LTD	51	1991–2012
RCA CORP	10	1985–1988
ELCOM TECH CORP	4	1998
APPLETON PAPER INC	2	2003–2005
GEN ELECTRIC	2	1989

Locations

Location	Patents	Span
Hopewell, New Jersey, US	66	1985–2012
Hopewell Township, Mercer County, New Jersey, US	4	1999–2002
Neenah, WI, US	2	2003–2005
Fremont, California, US	1	2021
Lakewood, New Jersey, US	1	2000