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.

Date of Patent:
Aug. 19, 2003

Filed:

Oct. 08, 1999
Applicant:
Inventor:

Ian David Johnson, Mossley, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/06 ;
U.S. Cl.
CPC ...
H04J 3/06 ;
Abstract

A synchronizing arrangement for a closed-loop data transmission system includes a central data switch and a plurality of transceivers which may be interconnected by way of the switch for the transmission of data between them. The central data switch includes a clock generator, and a plurality of ports, each of which includes a transmitter, a receiver, a phase detector and a phase encoder. Each transceiver includes a data transmitter, a data receiver and a synchronizing means operable to maintain synchronism between the transceiver and the data port. A common reference oscillator provides frequency reference signals to the central data switch, each data port and each transceiver.


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