Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2005-07-12
2005-07-12
Yenke, Brian P. (Department: 2614)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
C348S193000, C348S723000, C375S229000, C375S296000, C455S114200, C455S114300, C455S115100, C455S115300, C455S126000
Reexamination Certificate
active
06917389
ABSTRACT:
A linear compensation system of a digital TV relay or other apparatus preferably includes a transmitting unit configured to modulate a data to an intermediate frequency (IF) signal, up convert the IF signal to an RF signal, and amplify the RF signal to a predetermined level using a high power amplifier (HPA). The system also includes a linear compensation unit to preferably directly vary a step size of an adaptive equalizer according to whether a signal-to-noise ratio (SNR) or an error vector magnitude (EVM) for an output signal of the HPA satisfies an advanced television systems committee (ATSC) or other standard. The linear compensation unit is thus configured to output an improved linear compensation coefficient to a modulator of the transmitting unit.
REFERENCES:
patent: 5732333 (1998-03-01), Cox et al.
patent: 5920808 (1999-07-01), Jones et al.
patent: 6081158 (2000-06-01), Twitchell et al.
patent: 6141390 (2000-10-01), Cova
patent: 6246686 (2001-06-01), Ha-Duong et al.
patent: 6281936 (2001-08-01), Twitchell et al.
patent: 6285412 (2001-09-01), Twitchell
patent: 6320913 (2001-11-01), Nakayama
patent: 6335767 (2002-01-01), Twitchell et al.
patent: 6473133 (2002-10-01), Twitchell et al.
patent: 6501805 (2002-12-01), Twitchell
patent: 6515712 (2003-02-01), Jeong
patent: 6519010 (2003-02-01), Twitchell et al.
patent: 6570444 (2003-05-01), Wright
patent: 6587514 (2003-07-01), Wright et al.
patent: 6600516 (2003-07-01), Danielsons et al.
patent: 6600792 (2003-07-01), Antonio et al.
patent: 6633200 (2003-10-01), Kolanek
patent: 6650374 (2003-11-01), Choi et al.
patent: 6674808 (2004-01-01), Griph et al.
patent: 6697436 (2004-02-01), Wright et al.
patent: 6711217 (2004-03-01), Jeong
patent: 6798843 (2004-09-01), Wright et al.
patent: 2002/0027958 (2002-03-01), Kolanek
patent: 2002/0064236 (2002-05-01), Matsuoka et al.
LG Electronics Inc.
Yenke Brian P.
LandOfFree
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