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. 12, 1997
Filed:
Nov. 15, 1994
David A Connolly, Arlington Heights, IL (US);
Lewis Holt, Barrington, IL (US);
Morris W Westerhold, Naperville, IL (US);
Samuel N Zellner, Hoffman Estates, IL (US);
Frank A Ciannella, Jr, South Holland, IL (US);
Ronald L Czaplewski, Glendale Heights, IL (US);
Gary J Bannack, Glendale Heights, IL (US);
Kenneth B Hallman, Arlington Heights, IL (US);
Ameritech Corporation, Hoffman Estates, IL (US);
Abstract
A wireless digital personal communications system (or PCS) having a plurality of intelligent base stations and portable handset terminals, each having a predetermined radio cell coverage area. The radio cell, radio-telephone PCS has a full digital network interface. The personal communications system facilitates direct interconnection and switching of PCS call traffic through the digital network interface and the public switched telephone network, or any switched network. The personal communications system has voice/data/image (or any combination thereof), and incoming and outgoing calling capability. The PCS is fully operational and compatible with any modulation approach selected. The intercell protocol hand-off being provided through distributed logic which is implemented in software that is resident in the intelligent portable handset terminals, in the intelligent base stations, and in the public switched telephone network (or any switched network).