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. 15, 2010
Filed:
Sep. 09, 1997
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);
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);
SBC Properties, L.P., Reno, NV (US);
Abstract
A wireless digital personal communications system (or PCS) having a plurality of radio cell base stations, fixed terminals, and portable handset terminals, each having a predetermined radio cell coverage area. The wireless PCS has a full digital network interface. The personal communications system facilitates the 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 and all modulation approaches selected for wireless communications. 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 fixed terminals, in the intelligent base stations, and in the public switched telephone network (or any switched network). Alternative embodiments of the present invention include a wireless digital personal communications system having authentication means for authenticating a remote device; a wireless digital personal communications system having a combination of authentication means for authenticating a remote device and security means for securing signal and message content between an intelligent base station and a remote device, the security means including a predetermined encryption and decryption technique; a wireless digital personal communications system having dynamic zone grouping of portable handset terminals or fixed terminals; and a wireless digital personal communications system having call forwarding for unanswered calls.