Apparatus for scanning input signals in wireless telephone and method of doing the same

An apparatus for scanning signals received by a wireless telephone, comprising:

• (a) a monitor having a first monitor mode where an input signal received through an antenna is monitored at every first period of time and a second monitor mode where said input signal is monitored at every second period of time longer than said first period of time;
• (b) a first mode keeper for, while said monitor is set in said first monitor mode, keeping said monitor in said first monitor mode when said input signal is monitored in a third period of time longer than said first period of time and when said input signal has a level equal to or greater than a threshold level;
• (c) a second mode keeper for, while said monitor is set in said first monitor mode, keeping said monitor in said first monitor mode when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in said third period of time;
• and
• (d) a mode changer for, while said monitor is set in said first monitor mode, changing said first monitor mode to said second monitor mode when said input signal is not monitored in said third period of time.

An apparatus for scanning signals received by a wireless telephone, comprising:

• (a) a monitor having a first monitor mode where an input signal received through an antenna is monitored at every first period of time and a second monitor mode where said input signal is monitored at every second period of time longer than said first period of time;
• (b) a mode keeper for, while said monitor is set in said first monitor mode, keeping said monitor in said first monitor mode when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in a third period of time longer than said first period of time;
• (c) a first mode changer for, while said monitor is set in said first monitor mode, changing said first monitor mode to said second monitor mode when said input signal is not monitored in said third period of time;
• and
• (d) a second mode changer for, while said monitor is set in said second monitor mode, changing said second monitor mode to said first monitor mode when said input signal is monitored in said second period of time.

A method of scanning signals received by a wireless telephone, comprising the steps of:

• (a) establishing a first monitor mode where an input signal received through an antenna is monitored at every first period of time;
• (b) keeping said first monitor mode, while said first monitor mode is established, when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in a second period of time longer than said first period of time;
• and
• (c) changing said first monitor mode to a second monitor mode where said input signal is monitored in a third period of time longer than said first period of time, while said first monitor mode is established, when said input signal is not monitored in said second period of time.

A method of scanning signals received by a wireless telephone, comprising the steps of:

• (a) establishing a first monitor mode where an input signal received through an antenna is monitored at every first period of time;
• (b) keeping said first monitor mode, while said first monitor mode is established, when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in a second period of time longer than said first period of time;
• (c) changing said first monitor mode to a second monitor mode where said input signal is monitored in a third period of time longer than said first period of time, while said first monitor mode is established, when said input signal is not monitored in said second period of time;
• and
• (d) changing said second monitor mode to said first monitor mode, while said second monitor mode is established, when said input signal is monitored in said third period of time.

A recording medium readable by a computer, storing a program therein for causing a computer to act as an apparatus for scanning signals received by a wireless telephone, said apparatus comprising:

• (a) a monitor having a first monitor mode where an input signal received through an antenna is monitored at every first period of time and a second monitor mode where said input signal is monitored at every second period of time longer than said first period of time;
• (b) a mode keeper for, while said monitor is set in said first monitor mode, keeping said monitor in said first monitor mode when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in a third period of time longer than said first period of time;
• and
• (c) a mode changer for, while said monitor is set in said first monitor mode, changing said first monitor mode to said second monitor mode when said input signal is not monitored in said third period of time.

A recording medium readable by a computer, storing a program therein for causing a computer to act as an apparatus for scanning signals received by a wireless telephone, said apparatus comprising:

• (a) a monitor having a first monitor mode where an input signal received trough an antenna is monitored at every first period of time and a second monitor mode where said input signal is monitored at every second period of time longer than said fire period of time;
• (b) a first mode keeper for, while said monitor is set in said first monitor mode, keeping said monitor in said first monitor mode when said input signal is monitored in a third period of time longer than said first period of time and when said input signal has a level equal to or greater than a threshold level;
• (c) a second mode keeper for, while said monitor is set in said first monitor mode, keeping said monitor in said first monitor mode when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in said third period of time;
• and
• (d) a mode changer for, while said monitor is set in said first monitor mode, changing said first monitor mode to said second monitor mode when said input signal is not monitored in said third period of time.

A recording medium readable by a computer, storing a program therein for causing a computer to act as an apparatus for scanning signals received by a wireless telephone, said apparatus comprising:

• (a) a monitor having a first monitor mode where an input signal received through an antenna is monitored at every first period of time and a second monitor mode where said input signal is monitored at every second period of time longer than said first period of time;
• (b) a first mode keeper for, while said monitor is set in said first monitor mode, keeping said monitor in said first monitor mode when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in a third period of time longer than said first period of time;
• (c) a first mode changer for, while said monitor is set in said first monitor mode, changing said first monitor mode to said second monitor mode when said input signal is not monitored in said third period of time;
• and
• (d) a second mode changer for, while said monitor is set in said second monitor mode, changing said second monitor mode to said first monitor mode when said input signal is monitored in said second period of time.

A recording medium readable by a computer, storing a program therein for causing a computer to carry out a method of scanning signals received by a wireless telephone, said method comprising the steps of:

• (a) establishing a first monitor mode where an input signal received through an antenna is monitored at every first period of time;
• (b) keeping said first monitor mode, while said first monitor mode is established, when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in a second period of time longer than said first period of time;
• and
• (c) changing said first monitor mode to a second monitor mode where said input signal is monitored in a third period of time longer than said first period of time, while said first monitor mode is established, when said input signal is not monitored in said second period of time.

A recording medium readable by a computer, storing a program therein for causing a computer to carry out a method of scanning signals received by a wireless telephone, said method comprising the steps of:

• (a) establishing a first monitor mode where an input signal received through an antenna is monitored at every first period of time;
• (b) keeping said first monitor mode, while said first monitor mode is established, when any input signal, whether having electric field level either greater than or smaller than a threshold level, is monitored in a second period of time longer than said first period of time;
• (c) changing said first monitor mode to a second monitor mode where said input signal is monitored in a third period of time longer than said first period of time, while said first monitor mode is established, when said input signal is not monitored in said second period of time;
• and
• (d) changing said second monitor mode to said first monitor mode, while said second monitor mode is established, when said input signal is monitored in said third period of time.