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:
Aug. 29, 2000
Filed:
Jan. 27, 1998
Phasecom Ltd., Jerusalem, IL;
Abstract
A symmetric full duplex data communication device known as a communication interface unit (CUI) permitting transmission of signals on CATV infrastructure or on amplitude modulated (AM) analog fiber in a variety of configurations. The communication interface unit is capable of interfacing to a variety of signal types, including but not limited to: E1 (G.703), T1 NI and DSX-1), V.35 (N.times.64) or Ethernet. The CUI transmits in the upstream direction in the frequency range of 5 to 50 MHz and receives in the downstream direction in the range of 50 to 860 MHz. The communication interface unit is bandwidth efficient by the use of digital filters in the receive signal path. Management of the communication interface unit is performed via a GMSK internal modem under control of the same CPU. The GMSK internal modem is used to establish a control channel to a network management system (NMS). The control channel operates at a maximum rate of 38.4 Kbps and at a bandwidth of 50 KHz.