Optical communications – Receiver – Heterodyne
Reexamination Certificate
2006-04-25
2006-04-25
Bello, Agustin (Department: 2633)
Optical communications
Receiver
Heterodyne
C398S202000, C398S027000
Reexamination Certificate
active
07035553
ABSTRACT:
To improve the performance for measuring autocorrelation bit errors of optical signals to be measured, an autocorrelation-bit-error detection apparatus of the present invention using an optical branch system first has an optical branch unit for branching an optical signal to be measured into a plurality of branched optical signals, a plurality of light-to-electricity converters for converting a plurality of branched optical signals supplied from the optical branch unit into electrical signals, a plurality of decision circuits for deciding relations between the electrical signals supplied from the light-to-electricity converters and their threshold values, and a detector for detecting autocorrelation bit errors of the optical signal to be measured in accordance with comparison results between the decision circuits.
REFERENCES:
patent: 5793511 (1998-08-01), Bulow
patent: 5796511 (1998-08-01), Allen et al.
patent: 6240055 (2001-05-01), Takamine et al.
patent: 6583903 (2003-06-01), Way et al.
patent: 57-101446 (1982-06-01), None
patent: 61-3551 (1986-01-01), None
patent: 61-29243 (1986-02-01), None
patent: 8-265273 (1996-10-01), None
patent: 11-261653 (1999-09-01), None
patent: 2000-4260 (2000-01-01), None
patent: 2000-115260 (2000-04-01), None
patent: 2000-232343 (2000-08-01), None
Bergano et al; Margin Measurements in Optical Amplifier Systems; 1993 IEEE Photonics Technology Letters, vol. 5, No. 3, Mar. 1993; pp. 304-306.
International Telecommunication Union; ITU-T; Series G: Transmission Systems and Media, Digital Systems and Networks; Apr. 1997; pp. 1-28.
Hattori Tsukasa
Miyata Motohisa
Yamaguchi Kazuhiko
Anritsu Corporation
Bello Agustin
Fishauf, Holtz, Goodman & Chick, P.C.
LandOfFree
Autocorrelation bit error detection device and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Autocorrelation bit error detection device and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Autocorrelation bit error detection device and method for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3601112