Cellular telephone device and transmitter to cellular telephone

• US 7,024,176 B2
• Filed: 04/10/2002
• Issued: 04/04/2006
• Est. Priority Date: 12/11/2001
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Shimizu, Hiroshi, Ogino, Atsushi, Kohinata, Nobuaki, Saito, Masahiko, Obata, Shinichi, Maeoka, Jun
• Primary Examiner(s): Trost, William
• Assistant Examiner(s): Huynh, Chuck
• Application Number:
  US10/119,307
• Publication Number:
  US 20030109246A1
• Time in Patent Office: 1,455 Days
• Field of Search: 455/414, 455/432.1, 455/436, 455/456, 455/404.1, 455/574, 379/421
• US Class Current: 455/411
• CPC Class Codes: H04M 1/72463 to restrict the functionality of the device
• CPC Class Codes: H04W 48/04 based on user or terminal location or mobility data, e.g. moving direction, speed
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

There are provided a cellular telephone device and transmitter for setting a cellular telephone to answering mode and a telephone section to sleep status when communication forbidding information is received, and restoring telephone section operation when there is no communication forbidding information and canceling silent mode and answering mode; and automatically setting silent mode and answering mode when a communication forbidding signal is received, and maintaining the telephone section operation status when there is no communication forbidding information, and canceling silent mode and answering mode.

Claims

1. A cellular telephone device comprising:

a radio-frequency device including a telephone section for sending and receiving radio frequency communication signals; and

,

a processor for controlling said radio frequency device to perform the steps of;

responsive to receiving communication forbidding information to enter a communication prohibit mode;

sending an answering mode registration request signal to initiate an answering mode, and

maintaining said telephone device in a sleep status; and

responsive to not receiving said communication forbidding information;

restoring said telephone section in to an operation status;

sending an answering mode cancel request signal; and

receiving an answering message;

whereby a cancellation of the answering mode is initiated,

wherein said processor controls to set an emergency telephone mode by executing an operation to cancel the communication prohibit mode when said telephone section is in said sleep status.

2. The cellular telephone device according to claim 1 further comprising a communication prohibit cancel button;

wherein said processor controls said radio frequency device to set said emergency telephone mode when said communication prohibit cancel button is pressed.