Optical receiver and visible light communication system

Details Optical receiver and visible light communication system Optical receiver and visible light communication system

2008-02-28

2011-11-15

Liu, Li (Department: 2613)

Optical communications

Receiver

Including postcompensation

C398S202000, C398S210000, C398S212000, C398S118000, C398S119000, C398S127000, C398S130000, C398S172000

Reexamination Certificate

active

08059972

ABSTRACT:
A data signal to be transmitted is supplied to a modulator of a transmitter, and the modulator modulates the output of a blue light-excited white LED and outputs blue LED light and phosphor light. The modulated blue light enters to a photo-electric converter through an LED light transmission color filter. The modulated phosphor light on the other hand enters to another photo-electric converter through a phosphor light transmission color filter. The photo-electric converters convert incident light to electric signals. The converted signals are amplified by amplifiers. Then, equalizers emphasize the harmonic component therein according to the response characteristic of the blue light and the response characteristic of the phosphor light for reduction of the dullness of waveforms.

REFERENCES:
patent: 4945541 (1990-07-01), Nakayama
patent: 5077619 (1991-12-01), Toms
patent: 6588950 (2003-07-01), Pfeiffer
patent: 7546038 (2009-06-01), Wang et al.
patent: 7650082 (2010-01-01), Yamada et al.
patent: 7689130 (2010-03-01), Ashdown
patent: 2001/0050795 (2001-12-01), Numata et al.
patent: 2004/0109696 (2004-06-01), Toshihisa
patent: 2005/0286907 (2005-12-01), Masuda et al.
patent: 2006/0056855 (2006-03-01), Nakagawa et al.
patent: 2006/0209945 (2006-09-01), Yamaguchi
patent: 2007/0031157 (2007-02-01), Yamada et al.
patent: 09-083457 (1997-03-01), None
patent: 10-051387 (1998-02-01), None
patent: 2002-290335 (2002-10-01), None
patent: 2003-318836 (2003-11-01), None
patent: 2003-318836 (2003-11-01), None
patent: 3465017 (2003-11-01), None
patent: 2007-043592 (2007-02-01), None
Taguchi: “Future Prospect and Application of White LED Lighting System Technologies”, CMC Publishing, Jun. 2003, pp. 1-19.
T. Taguchi et al., “Future Prospect and Application of White LED Lighting System Technologies”, CMC Publishing Co., Ltd., Jul. 2003.
Shiroiro LED Shomei Shisutemu Gijutsu no Ouyou to Shorai tenbou (Applications and Future Prospects of White LED Illumination System Technology), CMC Publishing, Jun. 2003.
IEICE Technocal Report ICD 2005-44 vol. 105 No. 184 Prototyping LED Driver for Visible Light Communication and Evaluating Response Performance of Visible Light LED.
2006 IEICE Engineering Sciences Society Conference Review on Brightness Deterioration of White LED.
2005 IEICE Communications Society Conference an Optical Analysis of Reception Characteristic for Parallel Optical Wireless Communication System.
Aruga, Spatial Transmission Optics System, Spatial Transmission Optics, Sep. 1, 2000, p. 158-167, Chapter 6, K.K. Suiyosha, Tokyo, Japan.
Triceps Planning Devision, Signal Level and Noise, TRICEPS Library—Infrared Communication Technology, Jun. 1, 1997, p. 49-65, Triceps K.K., Tokyo, Japan.
Yonezu, PIN Photodiode, Optical Communication Device Engineering -light emitting & receiving device-, Feb. 15, 1984, p. 359-384, Kougaku Tosho K.K., Tokyo, Japan.

Affiliated with

Also associated with

Rating

Optical receiver and visible light communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical receiver and visible light communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical receiver and visible light communication system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4285126