Optical packet communication device with an applied negative...

Details Optical packet communication device with an applied negative... Optical packet communication device with an applied negative...

2006-10-30

2008-10-14

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S2140AG

Reexamination Certificate

active

07435938

ABSTRACT:
There is provided a PD-TIA module that can be used for recognition of an address of an optical packet signal in a system having variation in mark rate all the time, such as an optical packet communication system. An optical communication module comprises a photoelectric converter for converting an optical signal into a current signal, a current/voltage conversion means connected to the photoelectric converter, for converting the current signal into a voltage signal, and a limiting amplifier for receiving and amplifying an electric signal subjected to voltage conversion by the current/voltage conversion means while comparing the electric signal as amplified with a predetermined threshold value, thereby outputting a signal for “0” or “1”.

REFERENCES:
patent: 2002/0020803 (2002-02-01), Suzuki et al.
patent: 2006/0086891 (2006-04-01), Gottesman et al.
patent: 2004-47822 (2004-02-01), None
patent: 2005-62879 (2005-03-01), None

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