Mobile telephone or WLL subscriber terminal with accounting function and method for controlling the same

Patent 6148191 Issued on November 14, 2000. Estimated Expiration Date:

May 12, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Radio telecommunication apparatus capable of controlling call charges
Patent #: 5109401
Issued on: 04/28/1992
Inventor: Hattori, et al.

Dynamic pricing method and apparatus for communication systems
Patent #: 5303297
Issued on: 04/12/1994
Inventor: Hillis

Real time information system for cellular telephones
Patent #: 5517555
Issued on: 05/14/1996
Inventor: Amadon, et al.

Mobile phone with internal accounting
Patent #: 5577100
Issued on: 11/19/1996
Inventor: McGregor, et al.

Mobile phone with internal call accounting controls
Patent #: 5625669
Issued on: 04/29/1997
Inventor: McGregor, et al.

Charging for usage of a telecommunications network Patent #: 5987107
Issued on: 11/16/1999
Inventor: Brown

Inventor

Kim, Hoo-Ja

Application

No. 076463 filed on 05/12/1998

US Classes:

455/407, At subscriber unit455/405, Usage measurement455/406Billing

Examiners

Primary: Maung, Nay
Assistant: Trinh, Sonny

Attorney, Agent or Firm

Dilworth & Barrese, LLP

Foreign Patent References

2265522 GB 09/22/1993

International Class

H04M 011/00

Foreign Application Priority Data

1997-05-12 KR

Abstract

A mobile telephone with an accounting function enables a user to visually check a call charge through a display unit. The mobile telephone includes a display unit for displaying a call charge according to call charge data, and a controller for calculating the call charge at a predetermined time interval beginning at a time when a call success message is received from a mobile telephone switching office, and providing the call charge data to the display. The mobile telephone includes a memory for storing the call charge, and a keypad with which a user can input charge rate data, wherein the controller stores the charge rate in the memory and calculates the call charge based on the charge rate.