Communication terminal apparatus and control method thereof

Patent 6198948 Issued on March 6, 2001. Estimated Expiration Date:

June 24, 2019. 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

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Patent #: 4885771
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5237311

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Patent #: 5915288
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Communication terminal apparatus and control method thereof Patent #: 5999827
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Inventors

Assignee

Sony Corporation

Application

No. 339751 filed on 06/24/1999

US Classes:

455/566, Having display455/550.1Radiotelephone equipment detail

Examiners

Primary: Vo, Nguyen

Attorney, Agent or Firm

Maioli; Jay H.

Foreign Patent References

2012199 CA. 09/13/1991
9404084 DE. 04/13/1996
0463582 EP. 01/13/1991
0588210 EP. 03/13/1994
0602840 EP. 06/13/1994

International Classes

H04B 001/38
H04M 001/00

Foreign Application Priority Data

1994-04-20 JP

Abstract

A communication terminal apparatus such as a portable telephone apparatus has a main body, a selection operation unit, an operation inputting unit, a display unit, and a controller. The main body has a speaker and a microphone. The selection operation unit is provided on the main body and selects one mode from a plurality of modes of the communication terminal apparatus. The control inputting unit is provided on the main body and changes functions based on the mode selected by the selection operation means. The display unit is provided on the main body and displays information required for selection operation or inputting operation by the selection operation unit and/or the operation inputting unit. The controller sets mode selected based on the input from the selection operation unit, and switches function of the operation input unit based on the input from the selection operation unit. The controller controls display operation of the display unit based on the input form the selection operation unit and/or the operation inputting unit.