The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2007
Filed:
Sep. 24, 2002
Applicants:
François Jeanjean, Wemmel, BE;
Frank Octaaf Van Der Putten, Leest, BE;
Inventors:
François JeanJean, Wemmel, BE;
Frank Octaaf Van der Putten, Leest, BE;
Assignee:
Alcatel, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Conventional modems coupled in parallel to a coupling need a sharing apparatus, which can be avoided by providing each modem with a detector for detecting upstream/downstream signals to be transceived by other modems coupled in parallel. The detector has a distinguisher for distinguishing upstream signals and downstream signals. An additional filter between the coupling and detector prevents the modem from interfering with the other modems coupled in parallel. The modem may have an active/passive state corresponding with a lower/higher impedance.