Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Reexamination Certificate
2001-08-22
2003-08-19
Feild, Lynn (Department: 2839)
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
C439S607070
Reexamination Certificate
active
06607308
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to electromagnetic shielding, and more specifically, to electromagnetic shielding of fiber-optic modules.
BACKGROUND OF THE INVENTION
As the need for greater data bandwidth over networks has exploded over the past few years, there has been a move towards using optical fibers as a transmission medium. Today, optical fiber made of dielectric materials are routinely used in communication channels from large public transmission media to Local Area Networks transmitting information from one node to another. The main difference between a fiber-optic communication system and other types of communication systems is that signals are transmitted as light or photons over optical fibers. Optical fiber or fiber-optic cables enable high speed communication of signals by guiding light or photons therein. At each end of a fiber-optic cable a transducer may be found that converts a light, photon or optical signal into an electrical signal; an electrical signal into a light, photon or optical signal; or a pair of transducers may do both. At a transmission end, an electrical-to-optical converter (EO) converts electrical signals into light or optical signals. At a receiving end, an optical-to-electrical converter (OE) converts a light, photon or optical signal into an electrical signal. In nodes of a communication system, it may be desirable to both transmit and receive light or optical signals at a node. In which case an optical-to-electrical converter (OE, i.e. receiver) and an electrical-to-optical converter (EO, i.e. transmitter) may be included to receive and transmit optical or light signals respectively. Therefore, the optical-to-electrical converter (OE, i.e. receiver) and the electrical-to-optical converter (EO, i.e. transmitter) are oftentimes physically located together as a single module referred to as an electro-optic, opto-electronic or fiber-optic transceiver. Fiber-optic transceivers, including fiber-optic transmitters and fiber-optic receivers, can also be referred to as fiber-optic modules.
Because of the high frequency needed in some of the electronics and the electro-optic components, such as the optical-to-electrical converter (OE, i.e. receiver) and electrical-to-optical converter (EO, i.e. transmitter), electromagnetic radiation can be generated which can interfere with other communication systems. This electromagnetic radiation is oftentimes referred to as electromagnetic interference (EMI). Electromagnetic radiation radiating externally out from a fiber-optic module or a system that incorporates the fiber-optic module is of great concern. To reduce electromagnetic radiation from radiating out of fiber-optic modules and systems with fiber optic modules as EMI, external electromagnetic shielding of internal electronic and opto-electronic components is often utilized. The external electromagnetic shielding can additionally reduce effects of external electromagnetic radiation on the internal components of a fiber-optic module and the system.
REFERENCES:
patent: 1661535 (1928-03-01), Haddock
patent: 1765443 (1930-06-01), Peterson
patent: 1875968 (1932-09-01), Weeber
patent: 1955648 (1934-04-01), Nickler
patent: 2062256 (1936-11-01), Del Camp
patent: 2065651 (1936-12-01), Burton
patent: 2133789 (1938-10-01), Pool
patent: 2169962 (1939-08-01), Del Camp
patent: 2219941 (1940-10-01), Rochow
patent: 2317813 (1943-04-01), Schoenborn
patent: 2321587 (1943-06-01), Davie et al.
patent: 2349440 (1944-05-01), Lavoie
patent: 2447380 (1948-08-01), Wenger
patent: 2477267 (1949-07-01), Robinson
patent: 2488710 (1949-11-01), Cooper
patent: 2520725 (1950-08-01), Judd
patent: 2531911 (1950-11-01), Johnson
patent: 2604507 (1952-07-01), Tyson
patent: 2629764 (1953-02-01), Wiley
patent: 2704301 (1955-03-01), Feketics
patent: 2753390 (1956-07-01), Feketics
patent: 2762990 (1956-09-01), Kielenstijn
patent: 2783295 (1957-02-01), Ewing
patent: 2790153 (1957-04-01), Arson
patent: 2793245 (1957-05-01), Dunn
patent: 2800698 (1957-07-01), Wood
patent: 2825042 (1958-02-01), Tollefson et al.
patent: 2844644 (1958-07-01), Boule, Jr.
patent: 2853541 (1958-09-01), Lindgren
patent: 2872139 (1959-02-01), Bedford, Jr.
patent: 2876275 (1959-03-01), Schulz
patent: 2974183 (1961-03-01), Kes et al.
patent: 2978531 (1961-04-01), Appleman
patent: 3019281 (1962-01-01), Hartwell
patent: 3026367 (1962-03-01), Hartwell
patent: 3052821 (1962-09-01), Scoville
patent: 3056942 (1962-10-01), Carbaugh et al.
patent: 3099506 (1963-07-01), Tuchel
patent: 3128138 (1964-04-01), Noschese
patent: 3217085 (1965-11-01), Lindgren
patent: 3234318 (1966-02-01), Lieshout et al.
patent: 3270252 (1966-08-01), Iversen
patent: 3277230 (1966-10-01), Stickney et al.
patent: 3300687 (1967-01-01), Hennessey
patent: 3304360 (1967-02-01), Hadley et al.
patent: 3305623 (1967-02-01), Bakker et al.
patent: 3311792 (1967-03-01), Scoville
patent: 3340587 (1967-09-01), Beyer
patent: 3341102 (1967-09-01), Stephens et al.
patent: 3366918 (1968-01-01), Johnson et al.
patent: 3368150 (1968-02-01), Worcester
patent: 3370140 (1968-02-01), Betts
patent: 3385970 (1968-05-01), Coffin, Jr. et al.
patent: 3407261 (1968-10-01), Donath et al.
patent: 3413406 (1968-11-01), Plummer
patent: 3423670 (1969-01-01), Parker et al.
patent: 3426140 (1969-02-01), Templeton
patent: 3436467 (1969-04-01), Smith, Jr.
patent: 3474385 (1969-10-01), Cefarelli et al.
patent: 3475657 (1969-10-01), Knowles
patent: 3487186 (1969-12-01), Johnson et al.
patent: 3504095 (1970-03-01), Roberson et al.
patent: 3506877 (1970-04-01), Owen
patent: 3524137 (1970-08-01), Redfield et al.
patent: 3535676 (1970-10-01), Schultz, Sr.
patent: 3536820 (1970-10-01), Stevens et al.
patent: 3546359 (1970-12-01), Ciccarelli
patent: 3555168 (1971-01-01), Frykberg
patent: 3566336 (1971-02-01), Johnson et al.
patent: 3569915 (1971-03-01), Sorensen et al.
patent: 3594490 (1971-07-01), Mitchell et al.
patent: 3617611 (1971-11-01), Kuether
patent: 3627900 (1971-12-01), Robinson
patent: 3659251 (1972-04-01), Fish
patent: 3670292 (1972-06-01), Tracy
patent: 3721746 (1973-03-01), Knappenberger
patent: 3784233 (1974-01-01), Hilbert
patent: 3816911 (1974-06-01), Knappenberger
patent: 3825874 (1974-07-01), Peverill
patent: 3852700 (1974-12-01), Haws
patent: 3854107 (1974-12-01), Tucto et al.
patent: 3864011 (1975-02-01), Huber
patent: 3871735 (1975-03-01), Herrmann, Jr.
patent: 3878397 (1975-04-01), Robb et al.
patent: 3883715 (1975-05-01), Gebo
patent: 3885084 (1975-05-01), Kaiserswerth et al.
patent: 3889043 (1975-06-01), Jean Ducros
patent: 3904810 (1975-09-01), Kraus
patent: 3907396 (1975-09-01), Huber
patent: 3909726 (1975-09-01), Dobrovolny et al.
patent: 3914001 (1975-10-01), Nelson et al.
patent: 3922056 (1975-11-01), Murawski et al.
patent: 3944317 (1976-03-01), Oberdiear
patent: 3952152 (1976-04-01), Lill et al.
patent: 3962550 (1976-06-01), Kaiserswerth
patent: 4018989 (1977-04-01), Snyder et al.
patent: 4020430 (1977-04-01), Vander Heyden
patent: 4037009 (1977-07-01), Severinsen
patent: 4053199 (1977-10-01), Hollyday et al.
patent: 4110552 (1978-08-01), Lombardi
patent: 4111513 (1978-09-01), Thurston et al.
patent: 4115655 (1978-09-01), Prentice
patent: 4138711 (1979-02-01), Bremenour et al.
patent: 4148543 (1979-04-01), Shores
patent: 4149027 (1979-04-01), Asher et al.
patent: 4176897 (1979-12-01), Cameron
patent: 4215796 (1980-08-01), Johnson et al.
patent: 4217019 (1980-08-01), Cameron
patent: 4218578 (1980-08-01), Olschewski et al.
patent: 4226491 (1980-10-01), Kazama et al.
patent: 4227037 (1980-10-01), Layton
patent: 4255015 (1981-03-01), Adams et al.
patent: 4265506 (1981-05-01), Hollyday
patent: 4300016 (1981-11-01), Bergeron et al.
patent: 4322572 (1982-03-01), Snyder
patent: 4325103 (1982-04-01), Ito et al.
patent: 4331285 (1982-05-01), Gottwals
patent: 4334259 (1982-06-01), Edwards
patent: 4337989 (1982-07-01), Asick et al.
patent: 4345808 (1982-08-01), Ingham
patent: 4380359 (1983-04-01), Hoffman et al.
patent: 4381129 (1983-04-01), Krenz
patent: 4384165 (1983-05-01), Loving, Jr. et al.
patent: 4384368 (1983-05-01), Rosenfeldt et al.
patent: 4386814 (19
Dair Edwin
Jiang Wenbin
Sim Yong Peng
Wei Cheng Ping
Blakely & Sokoloff, Taylor & Zafman
E20 Communications Inc.
Feild Lynn
Webb Brian S.
LandOfFree
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