Electrical connectors – With insulation other than conductor sheath – Plural-contact coupling part
Reexamination Certificate
1999-10-01
2001-02-13
Bradley, Paula A. (Department: 2833)
Electrical connectors
With insulation other than conductor sheath
Plural-contact coupling part
C439S941000
Reexamination Certificate
active
06186836
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to modular connectors and, particularly, to a modular jack type connector.
2. Description of the Related Art
Modular connectors are widely used in communications equipment. A modular connector comprises an insulating housing having a plugging portion for plugging with a mating connector and a plurality of contact elements supported by the insulating housing and is so compact that the contact elements are arranged very closely. Consequently, crosstalk or noise is produced between adjacent contact elements especially between elongated straight portions of the contact elements.
Japanese patent application Kokai Nos. 7-106010 and 8-64288 have proposed improvements in reduction of the crosstalk.
The proposed improvements do not need any additional components such as a ground plate or capacitor for reducing the crosstalk and are relatively simple and inexpensive. However, they have the following disadvantages.
These conventional modular connectors optimize the crosstalk characteristics by adjusting the overlap of only the intermediate sections of the contact elements. The intermediate sections have a substantially constant dimension for all of the modular connector. When the dimensions of the modular connector are changed, it is impossible to adapt for the change by adjusting the overlap of only the intermediate sections. Thus, there is little freedom in design for optimizing the crosstalk characteristics.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the invention to provide a modular connector having a high degree of freedom in design for optimizing the crosstalk characteristics.
According to the invention there is provided a modular connector which comprises an insulating housing having a plugging portion for plugging with a mating connector; a plurality of contact elements supported by the insulating housing; the contact elements each having a contact section arranged within the insulating housing, an intermediate section fixed in the insulating housing, and a connection section extending from the intermediate section; a pair of the contact elements on opposite ends intersecting each other in the intermediate sections; and other pairs of the contact elements arranged such that a distance between them is decreased in the intermediate sections and increased in the connection sections.
According to one embodiment of the invention, one of the pairs of the contact elements is made from a first reed frame, and the other from a second reed frame, with one of the first and second reed frames being substantially flat.
According to another embodiment of the invention, the intermediate sections are molded with the insulating housing, with the connection sections bent in an L-shape from the insulating housing.
According to still another embodiment of the invention, the connection sections of the other pairs of the contact elements spread behind the L-shaped bends.
According to yet another embodiment of the invention, the connection sections of the contact elements permit mounting up to the L-shape bends.
According to another embodiment of the invention, the insulating housing has the plugging portions at two tiers or more, the contact elements being provided in each of the tiers, and the connection sections of the other pairs of the contact elements are spaced in each of the tiers so as to optimize crosstalk characteristics.
REFERENCES:
patent: 5186647 (1993-02-01), Denkmann et al.
patent: 5362257 (1994-11-01), Neal et al.
patent: 5531612 (1996-07-01), Goodall et al.
patent: 5586914 (1996-12-01), Foster, Jr.
patent: 5885111 (1999-03-01), Yu
patent: 5911602 (1999-06-01), Vaden
patent: 5921818 (1999-07-01), Larsen et al.
patent: 6102730 (2000-08-01), Kjeldahl et al.
Ezawa Katsuya
Hirokawa Kenichi
Bradley Paula A.
Hirose Electric Co. Ltd.
Kanesaka & Takeuchi
Tu Tho D.
LandOfFree
Modular connector having means for optimizing crosstalk... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modular connector having means for optimizing crosstalk..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular connector having means for optimizing crosstalk... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2560816