Mobile station using positional information

A mobile station capable of calculating a current position by position calculation using radio wave, said mobile station comprising:

• a signal receiver for receiving radio wave;
• a position calculator for calculating the current position from a result of reception provided by the signal receiver;
• means for target position input for inputting a position constituting a target;
• a target position holder for holding the target position inputted from the means for target position input;
• a position comparator for comparing the current position of the mobile station calculated by the position calculator with the target position held at the target position holder;
• a position calculation controller for controlling a frequency of position calculation by the position calculator in accordance with a result of position comparison by the position comparator;
• a vibration generator for vibrating the mobile station based on the result of the position comparison by the position comparator;
• and
• a vibration controller for controlling generation and abeyance of vibration of the vibration generator by using the result of the position comparison by the position comparator;
• wherein the position calculation controller uses a history of the result of the position comparison by the position comparator and executes the control of increasing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a high speed and executes the control of reducing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a low speed.

A mobile station capable of calculating a current position by position calculation using radio wave, said mobile station comprising:

• a signal receiver for receiving radio wave;
• a position calculator for calculating the current position from a result of reception provided by the signal receiver;
• means for target position input for inputting a position constituting a target;
• a target position holder for holding the target position inputted from the means for target position input;
• a position comparator for comparing the current position of the mobile station calculated by the position calculator with the target position held at the target position holder;
• a position calculation controller for controlling a frequency of position calculation by the position calculator in accordance with a result of position comparison by the position comparator;
• an alarm generator for generating an alarm from the mobile station based on the result of the position comparison by the position comparator;
• and
• an alarm controller for controlling generation and abeyance of the alarm of the alarm generator by using the result of the position comparison by the position comparator;
• wherein the position calculation controller uses a history of the result of the position comparison by the position comparator and executes the control of increasing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a high speed and executes the control of reducing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a low speed.

A mobile station capable of calculating a current position by position calculation using radio wave, said mobile station comprising:

• a signal receiver for receiving radio wave;
• a position calculator for calculating the current position from a result of reception provided by the signal receiver;
• means for target position input for inputting a position constituting a target;
• a target position holder for holding the target position inputted from the means for target position input;
• a position comparator for comparing the current position of the mobile station calculated by the position calculator with the target position held at the target position holder;
• a position calculation controller for controlling a frequency of position calculation by the position calculator in accordance with a result of position comparison by the position comparator;
• means for making a telephone call for making a telephone call based on the result of the position comparison by the position comparator;
• a telephone number holder for holding a telephone number of a message destination used in making the telephone call by the means for making a telephone call;
• a telephone message holder for holding a message transmitted after making the telephone call;
• and
• an application controller for controlling to make the telephone call by the means for making a telephone call by using the result of the position comparison by the position comparator;
• wherein the position calculation controller uses a history of the result of the position comparison by the position comparator and executes the control of increasing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a high speed and executes the control of reducing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a low speed.

A mobile station capable of calculating a current position by position calculation using radio wave, said mobile station comprising:

• a signal receiver for receiving radio wave;
• a position calculator for calculating the current position from a result of reception provided by the signal receiver;
• means for target position input for inputting a position constituting a target;
• a target position holder for holding the target position inputted from the means for target position input;
• a position comparator for comparing the current position of the mobile station calculated by the position calculator with the target position held at the target position holder;
• a position calculation controller for controlling a frequency of position calculation by the position calculator in accordance with a result of position comparison by the position comparator;
• a switch for a ringer for making on or off a ringer when a telephone signal arrives at the mobile station based on the result of the position comparison by the position comparator;
• and
• a ringer controller for controlling a switching operation of the ringer switch by using the result of the position comparison by the position comparator.

A mobile station capable of calculating a current position by position calculation using radio wave, said mobile station comprising:

• a signal receiver for receiving radio wave;
• a position calculator for calculating the current position from a result of reception provided by the signal receiver;
• means for target position input for inputting a position constituting a target;
• a target position holder for holding the target position inputted from the means for target position input;
• a position comparator for comparing the current position of the mobile station calculated by the position calculator with the target position held at the target position holder;
• a position calculation controller for controlling a frequency of position calculation by the position calculator in accordance with a result of position comparison by the position comparator;
• a switch of power supply for switching power supply to the mobile station based on the result of the position comparison by the position comparator;
• and
• a power supply controller for controlling a switching operation of the power supply switch by using the result of position comparison by the position comparator;
• wherein the position calculation controller uses a history of the result of the position comparison by the position comparator and executes the control of increasing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a high speed and executes the control of reducing the frequency of the position calculation by the position calculator when the mobile station approaches the target position at a low speed.