(12) United States Patent
Bates et al.
(io) Patent No.: US 6,999,757 B2 (45) Date of Patent: Feb. 14,2006
(54) TELEPHONE SYSTEM AND METHOD FOR SELECTIVELY RINGING ONE OR MORE LAND PHONES OR PORTABLE PHONES BASED ON THE SELF-DETECTED GEOGRAPHICAL POSITION OF A PORTABLE PHONE
(75) Inventors: Cary Lee Bates, Rochester, MN (US);
Jeffrey Michael Ryan, Byron, MN
(US); John Matthew Santosuosso,
Rochester, MN (US)
(73) Assignee: International Business Machines Corporation, Armonk, NY (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 702 days.
(21) Appl. No.: 09/759,784
(22) Filed: Jan. 12, 2001
(65) Prior Publication Data
US 2001/0055974 Al Dec. 27, 2001
Related U.S. Application Data
(63) Continuation-in-part of application No. 09/591,331, filed on Jun. 9, 2000.
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5,502,762 A * 3/1996 Andrew et al 379/202.01
5,745,850 A * 4/1998 Aldermeshian et al 455/417
5,757,902 A * 5/1998 Mitsuo 379/212.01
5,778,304 A 7/1998 Grabe et al 455/33.1
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5,903,833 A * 5/1999 Jonsson et al 455/417
FOREIGN PATENT DOCUMENTS
EP 0 865 188 A2 9/1998
Anonymous: "Mobile Telephone with Position Reporting System" Research Disclosure, Kenneth Mason Publications, Hampshire, GB, vol. 41, No. 410, Jun. 1, 1998, XP002170406.
Primary Examiner—Stephen D'Agosta
(74) Attorney, Agent, or Firm—Martin & Associates, LLC;
Derek P. Martin
A portable phone is equipped with a position detector that detects the geographical position of the portable phone, and a telephone system may ring one or more land-based phones or portable phones according to the geographical position of the portable phone. One or more geographical regions are defined, with corresponding telephone parameters defined for each region. When a portable phone enters a defined region, exits a defined region, or changes between two defined regions, the function of one or more land-based phones or portable phones may change. The preferred embodiments thus allow changing the function of one or more other phones based on the self-detected geographical position of a portable phone. In this manner the convenience of using portable phones is greatly enhanced.
8 Claims, 10 Drawing Sheets