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, 2001
Filed:
Aug. 15, 1997
Aly F. Elrefaie, Cupertino, CA (US);
Hans George Mattes, Santa Rosa, CA (US);
Hewlett-Packard Corporation, Palo Alto, CA (US);
Abstract
A first embodiment of the present invention discloses a system for extending the range of Personal Communication Services (“PCS”) band wireless local loop services. A frequency translation unit at both the user's residence and at the central hub translates the PCS signal from the PCS frequency band to the Local Multipoint Distribution System (“LMDS”) band and back. As LMDS has a significant range advantage over DECT and PHS without greatly increased costs, this frequency translation allows DECT and PHS telephones to be used over greater ranges, without the necessity of constructing a large number of cellular transceiver sites. A second embodiment of the present invention uses a frequency translation unit to permit the use of either PCS or known cellular telephones inside a user's residence without the call being routed through the more expensive cellular network. The frequency translation unit translates from PCS or cellular frequencies to LMDS frequencies. The user's calls are then completed over the less expensive LMDS network. When outside the user's residence, the PCS or cellular telephone operates in its original known fashion.